 Method of making a packaged filter tow bale
专利摘要:
The present invention relates to a method of producing a packaged bale of high density filter tow material. In this case, it is provided that first a filter tow bale compressed in a baler is provided in cuboidal form in a baling press. Subsequently, the compressed filter tow bale is packed with the compressed filter tow bales completely enclosing, airtight packaging wrapper. According to the invention, provision is made in particular for the packaging wrapper to be applied to the compressed filter tow bales in such a way that at least 80%, preferably at least 90% and more preferably at least 95% of the packaging wrapper directly adjoins the highly compressed filter tow material and this of therefore, touched or at least less than 15 mm from the high density filter tow material. 公开号:BE1024772B1 申请号:E2016/0083 申请日:2016-04-28 公开日:2018-07-02 发明作者:Thomas Krumrey；Dietmar Kern 申请人:Rhodia Acetow Gmbh；Solvay Acetow Gmbh； IPC主号:
专利说明:
(73) Owner: RHODIAACETOW GmbH 79108, FREIBURG IM BREISGAU Germany (72) Inventor: KRUMREY Thomas 79331 TENINGEN Germany KERN Dietmar 79364 MALTERDINGEN Belgium (54) Method for producing a packed filter tow bale (57) The present invention relates to a method for producing a packed bale from highly compressed filter tow material. It is provided here that a filter tow bale compressed in a cuboid shape is first provided in a baler. The compressed filter tow bale is then packed with an airtight packaging envelope which completely surrounds the compressed filter tow bale. According to the invention, it is provided in particular that the packaging sleeve is applied to the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and even more preferably at least 95% of the packaging sleeve lies directly against the highly compressed filter tow material and from this therefore touches or is at least less than 15 mm from the highly compressed filter tow material. Fig. Id t1 mm ΙΞ î1 î; y //////////// x Àî1 BELGIAN INVENTION PATENT FÖD Wirtschaft, K.M.B., Mittelstand & publication number: 1024772 Energy filing number: BE2016 / 0083 Office of Intellectual Property Boarding. Classification: B65B 27/12 B65B 11/48 Issued on: 02/07/2018 The Minister for Enterprise Due to the Paris Treaty of March 20, 1883 for the protection of industrial property; Introduced under the Act of March 28, 1984 on Inventive Patents, Article 22, for applications prior to September 22, 2014; Based on Title I “Invention Patents” of Book XI of the Economic Code, Article XI.24, introduced for applications from September 22, 2014; Based on the royal decree of December 2, 1986 on the registration, granting and maintenance of patents for invention, Article 28; Based on the protocol, taken on 28/04/2016 at the Intellectual Property Office. Considering that for patent applications that fall within the scope of Title 1, Book XI, of the Economic Code, in accordance with Article XI.19, Section 4, second paragraph, of the Economic Code, if the patent application is the subject of a search report in which a lack of unity of invention within the meaning of paragraph 1 is mentioned, and if the applicant does not limit his application and does not file a divisional application in accordance with the search report, the granted patent will be limited to the claims for which the search report was created. DECIDES: Article 1. - An invention patent is granted to: RHODIAACETOW GmbH, Engesserstrasse 8, 79108 FREIBURG IM BREISGAU Germany; represented by : OFFICE KIRKPATRICK S.A., Avenue Wolfers 32, 1310, LA HULPE; for a period of 20 years, subject to the payment of the annual patent fees mentioned in Article XI.48, Section 1 of the Economic Code, for: Process for the manufacture of a packed filter tow bale. INVENTOR: KRUMREY Thomas, Riedweidenstrasse 8, 79331, TENINGEN; KERN Dietmar, Nelkenweg 6, 79364, MALTERDINGEN; PRIORITIES) : 29/04/2015 EP 15165662.6; SEPARATION: Partial application of the previous application: Date of filing of the previous application: Article 2. - This patent is granted without any prior examination of the patentability of the invention, without guaranteeing the merit of the invention or the accuracy of its description, and at the own risk of the patent applicant (s). Brussels, 02/07/2018, in special representation: B E2016 / 0083/1 uj Century » - 1 method of making a packed filter tow bale The present invention relates to a method for producing a packaged bale from high-density filter tow material. This application claims the priority of EP Application No. 15165662.6, the entire contents of which are hereby incorporated by reference and which is included for all purposes. The majority of the cigarette filters used today are made from filter tow material, which consists of endless cellulose-2.5-acetate filaments. After spinning, the individual filaments are combined into a band and then crimped in a stuffer box. The product is then dried and then placed loosely in filling cans several meters high. In this case, the filter tow material is distributed evenly as a layer over the cross-sectional area of the filling can by movements of a depositing unit that change in the longitudinal and transverse directions. As many layers are stacked on top of each other until the filter tow pack has reached the desired mass and height in the filling can. Package weights of several 100 kg are common in this area. The filter tow material inserted into the filling cans is then pressed into a filter tow bale and finally packaged for the purpose of transport to the filter or cigarette manufacturer. The bales provided for further processing into cigarette filters weigh between 350 and 650 kg, depending on the bale format, with exceptionally also high-density bales with weights of up to 900 kg, so-called “high-density tow bales”, as are available, for example, in the publication US Pat. No. 4,577,752 A are described. After the transport of the final packaged filter tow bales to the filter or cigarette manufacturer, the filter tow material is removed from the bale and processed into filter rods on a filter rod machine, as described, for example, in US Pat. No. 5,460,590. When filter-tow material is processed into filter rods in a filter rod machine, the filter-tow material is bulged as much as possible in a processing part. To puff up the filter tow material, this is generally done by means of spreader nozzles operated by compressed air BE2016 / 0083 -2 pulled apart and stretched by a system of stretching rollers, in particular with thread or screw surfaces. The spread filter tow material is then fed to a triacetin spray box, in which the acetate surface of the filter tow material is dissolved and made tacky. In the format section of the filter rod machine, the filter tow band is gathered and compressed to the cross-section of the future filter rod. The filaments stick together and form a three-dimensional network structure with the filter hardness desired for further processing and consumers. The essential quality feature for the filter or cigarette manufacturer is the homogeneity with regard to the draw resistance, since this influences the smoker's taste sensation and the filter performance. The still acceptable draw resistance variations depend on the absolute value of the draw resistance. The homogeneity of the filter rods with regard to the tensile resistance is determined not only by the quality of the filter tow material and the processing method in the filter rod machine, but in particular also by the type of packaging of the filter tow material. Here, the type of packaging of the filter tow material is generally decisive for an undisturbed flow of the filter tow material from the filter tow bale on the filter rod machine. In particular in the case of filter tow bales with high packing densities and filter tow bales, the material of which has been exposed to excessively high compressive forces (for example during compression or locally due to changes), workflow-related problems often occur on the filter rod machine. In particular, voltage changes when pulling the filter tow material from the filter tow bale often lead to uneven pre-stretching of the filter tow material when it enters the filter rod machine and thus to material or tensile resistance fluctuations. In order to ensure that the filter rods made from the filter tow material are always of the same good quality, certain conditions must be taken into account in particular when packaging the filter tow material in order to remove the filter tow material from to prevent the filter tow bale on the filter rod machine from excessive fluctuations in material or tensile resistance. On the one hand, a maximum pressing force must not be exceeded when the FilterTow material stored in the filling can is pressed, since this inevitably negatively affects the quality of the filter tow material B E2016 / 0083 Would affect the extent to which the filter rods made from the filter tow material would no longer have acceptable variations in tensile resistance for the filter or cigarette manufacturer. In addition - if possible - changes should not be made to the final packed FilterTow bale, since such changes in the packed Filter Tow material inevitably lead to constrictions and local defects, which in turn leads to tension resistance scattering which is no longer acceptable for the filter or cigarette manufacturer leads made of the filter tow material filter rods. The influence of the method used for packaging filter tow material at the FilterTow manufacturer on the quality of the packed filter tow material in the filter rod machine at the filter or Filter rods produced by cigarette manufacturers were not, or at least not sufficiently, taken into account in the packaging processes known from the prior art and currently used. A method for optimal filling of a filling can is described in WO 02/32238 A2. However, this prior art primarily only concerns the filling of the filling can with filter tow material, in order to subsequently avoid or at least reduce such processing problems at the filter or cigarette manufacturer that arise from a filter tow material that is not optimally stored in the filling can result. The influence of the subsequent packaging process on the quality of the filter tow material is not sufficiently taken into account in this prior art. The packaging process includes compressing the filter tow material placed in the filling can and then packing the compressed filter tow material into a final packed filter tow bale. Usually, after the filter tow material has been deposited in a filling can, the filter tow material is pressed in a baler in the direction of the superimposed layers of the filter tow material previously placed in the filling can. During the pressing process, a press ram 10, 10 ′ of the baling press acts in the direction of the layers of the filter tow material lying on top of one another, so that the initial height of the filter tow material deposited in layers in the filling can is reduced. When pressed, the filter tow material does not show a complete, elastic (reversible) behavior, as this is deposited in the filling can in layers BE2016 / 0083 -4Filter tow material does not grow back to its original height if the pressing force exerted by the baling press 10, 10 'of the baling press perpendicular to the filter tow material layers is removed again. Rather, the height at which the filter tow material grows again when the pressing force exerted by the press ram 10, 10 ′ of the baling press is lifted, in particular depends on how long and with what pressing pressure the pressing was carried out beforehand. To pack the filter tow material pressed in the filling can, it is customary to encase the filter tow pack still under pressure, in particular within the press device, with a packaging material (packaging material). After the compressed filter tow bale provided in the baler has been wrapped, the baler is usually opened and the compressive stress exerted on the filter tow pack is thus removed. Since the filter tow material only has a relatively low elastic, i.e. After the release from the baling press, the filter tow pack tends to expand, namely perpendicular to the filtcr tow material layers and opposite to that of, the relaxing, reforming portion, the amount of which depends in particular on the pressing time and / or pressing force the baling press originally exerted. This elastic (relaxing) reshaping part of the filter tow material is the smaller the longer the pressing time and the higher the pressing force when pressing the filter tow bale in the filling can. After the release from the baling press, only the relaxing reforming component represents the elastic restoring force which has to be absorbed by the packaging material of the filter tow pack so that the bale holds together. Common packaging materials are cardboard boxes that are held together mechanically by alterations or gluing, or plastic fabrics that are closed, for example, by a Velcro fastener. An example of an adhesive packaging is described in the document DE 76 35 849 Ul. Information about filter tow packaging with plastic fabrics can be found in the company brochure "Some Useful Information about the reusable Packaging for Rhodia Filter Tow": RHODIA Acetow GmbH, Engesserstrasse 8, D-79108 Freiburg. B E2016 / 0083 These two last-mentioned types of packaging have advantages in that they do not require any additional modifications, so that the risk of constrictions and the resulting scatter of resistance in the filter rods ultimately produced from the filter tow material is minimized. However, the last two types of packaging mentioned have the disadvantage; that the relaxing reshaping portion existing after the release of the compressed bale, i.e. the elastic restoring force of the FilterTow material from which the packaging material is absorbed. This inevitably leads to undesirable bulges on the top and bottom of the bale. Although these bulges do not interfere with the intended use of the filter tow material in the filter rod machine for the production of filter rods, they prevent the filter tow bales produced in this way from being safely stacked. According to the prior art, this problem is solved either by stacking the bales to the side or by using special pallets, as described in the above-mentioned company brochure of RHODIA Acetow GmbH. On the other hand, it is known from the publication WO 2003/089309 A2 that the filter tow material compressed in a baler is provided in the compressed state with an airtight packaging envelope which completely encloses the filter tow bale. When such an airtightly enclosed bale is released from the baler, the relaxing one leads Reshaping portion of the filter tow material so that when the height of the highly compressed bale increases, a depression is simultaneously generated in the inside of the bale, via which at least part of the elastic restoring force of the filter tow material is equalized. In this way, the undesirable bulges on the top and bottom of the bale can at least be reduced, since the packaging material only has to absorb a smaller proportion of the elastic restoring force of the filter tow material. Problematic with the last-mentioned type of packaging, in which the filter tow material compressed in the baler is sealed airtight with a packaging material, so that after the filter tow bale is released from the baler, the relaxing recovery portion of the filter tow material is at least partially through which then in B E2016 / 0083 6 Equalization of the build-up of the inside of the bale can be seen in the fact that there is a high risk that the bale will burst after being released from the baler, especially if the height of the filter tow bale can only increase slightly and thus the underpressure generated inside the bale is too low to effectively equalize the elastic restoring force of the FilterTow material. On the part of the filter tow manufacturers, there is an increasing effort to use an “optimal” process when packaging filter tow material, to the extent that the requirements of the filter or cigarette manufacturers regarding the quality of the filter tow bale are handled Filter tow material is met, and on the other hand, the filter tow manufacturer effectively minimizes the risk of a "ball burst". In order to avoid the failure rate in the packaging type known from the publication WO 2003/089309 A2, the failure rate that occurs when producing packed bales from highly compressed filter tow material, i.e. In principle, various measures are possible to reduce the risk of a bale burst after being released from the baler. On the one hand, the relaxing recovery portion that occurs after the bale is released from the baling press, that is to say the elastic restoring force of the filter tow material, can be reduced by reducing the filling quantity of the bale accordingly. However, this measure has the disadvantage that during the further processing of the filter tow material, in particular in a filter rod machine, the filter tow material of a bale is used up relatively quickly due to the reduced bale filling quantity, and the filter rod machine is equipped with a new filter tow bale got to. This leads to relatively frequent interruptions in filter rod production, which is not accepted by the filter rod manufacturer. Another measure for reducing the relaxing reforming portion of the filter tow material after release from the baler would consist in increasing the pressing force exerted in the baler when the filter tow material was pressed. However, this leads to quality defects in the compressed filter tow material and thus to quality defects in the cigarette filters made from the filter tow material. In addition, an increased pressing force would have a negative impact on the bale discharge on the filter rod machine. B E2016 / 0083 A further measure to reduce the relaxing recovery portion of the filter tow material after release from the baler could be to extend the pressing time accordingly in order to increase the irreversible (i.e. non-elastic) recovery portion in the FilterTow material at the expense of the relaxing recovery portion increase. However, an extension of the pressing time inevitably reduces the press throughput, which is undesirable and unacceptable on the part of the filter tow manufacturer. On the basis of this problem, the present invention has for its object to provide a method for producing a packaged bale from highly compressed filter tow material, in which the failure rate of the packaged bales produced is reduced and in particular is below 1%, if possible, while at the same time Disadvantages described above and occurring in the prior art can be avoided. In particular, the method should also be suitable for the production of a FilterTow bale, in which the filling quantity of the bale does not fall below a minimum level that is still accepted by the filter rod manufacturers, while at the same time minimizing the risk of introducing quality defects in the filter tow material during the pressing process and the bale run on the filter rod machine is not deteriorated. In addition to this, the press throughput previously customary at the filter tow material manufacturer should also be realizable in the method. This object is achieved according to the invention in particular by the subject matter of independent patent claim 1, with advantageous developments of the production method mentioned in patent claim 1 being mentioned in the dependent patent claims. Thus, according to the teaching according to the invention for producing a packaged bale from highly compressed filter tow material, a filter tow bale compressed in a box shape in a baler is first provided, with the compressed filter tow bale then being compressed with one of the compressed filter tow bales. Bale is completely wrapped in an airtight packaging envelope. In the packaging step, the packaging sleeve is placed on the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and more preferably at least 95% of the packaging sleeve is directly on the highly compressed filter B E2016 / 0083 -8Tow material abuts and thus touches it or is at least less than 15 mm from the highly compressed filter tow material. The volume of air that is enclosed outside the contour of the compressed filter tow bale during the packaging process can have a significant influence on the expansion behavior of the bale immediately after relief. With this comparatively simple measure it is surprisingly achieved that after the compressed filter tow bale packed in this way has been released from the baling press, the risk of the bale bursting open is significantly reduced, in comparison to bales, for example, according to the method described in FIG Document WO 2003/089309 A2 generally described packaging type can be produced. In detail, a failure rate of well below 1% is realized in the bales produced using the method according to the invention. In this context, studies have shown that, in particular, the actual packaging process of the compressed FilterTow bale is primarily decisive for the occurrence of a bale burst after the packaged bale has been released from the baling press. This is largely independent of the filling volume of the bale, the pressing force exerted during pressing and the pressing time. The method according to the invention can therefore be easily implemented in a packaging process, as is generally described, for example, in the publication WO 2003/089309 A2. In particular, the risk of a bale burst after the packaged filter tow bale has been released from the baling press can thus be significantly reduced, in spite of the constant filling quantity of the bale. The pressing process that is usually used (pressing force and pressing time) does not have to be changed either, so that the baling presses and pressing sequences used to carry out the method according to the invention in the usual way in the production of highly compressed bales from filter tow material can be used. With the method according to the invention, not only the failure rate, but also the risk of quality defects occurring in the FilterTow material during the pressing process is reduced, while at the same time a bale run desired by the cigarette or filter manufacturers on the filter rod machine is not negatively influenced. BE2016 / 0083 Another important advantage that is achieved with the production method according to the invention is that the increase in the height of the filter tow bale takes place after the release from the baling press in accordance with a predetermined event sequence, in particular also the extent of the change in height is capped. In this way, the maximum final height of the finished packaged filter tow bale can be set to a predetermined maximum value after release from the baling press. Since, due to the use of an airtight packaging envelope that completely encloses the filter tow bale, disruptive bulges on the top and bottom of the finished filter tow bale released from the baling press are prevented, the bales produced by the method according to the invention can also be prevented stack easily. Together with the maximum height of the bale that has been completed and released from the baling press and can be predetermined in advance by the method according to the invention, bales can thus be produced that can be stacked in double layers in standard containers with optimal use of space. In the case of the packaging methods known from the prior art and described, for example, in the publication WO 2003/089309 A2, such stackability in double layers could not be achieved with full use of the height of a standard container or the height of the door opening of a standard container. The term “highly compressed filter tow material” used here means in particular filter tow material with a packing density of at least 300 kg / m3 and at most 800 kg / m3. The balers commonly used in filter tow manufacture are suitable as the baler for providing the compressed filter tow bale. These are balers with a press force of at least 100 t / m2, whereby a maximum press force of 600 t / m2 should not be exceeded. The filter tow bale compressed in the baler is preferably provided by pressing it with a pressing force of at least 100 t / m 2 and a pressing time of at least 4 to 20 minutes, preferably 5 to 15 minutes. In order to ensure that during the packaging step of the manufacturing method according to the invention the packaging sleeve is placed on the compressed filter tow bale in such a way that at least 80% of the packaging sleeve BE2016 / 0083 10 lies directly on the filter tow material or is spaced at least less than 15 mm from the filter tow material, different solutions come into question. In particular, a measurement arrangement with at least one contactlessly operating sensor unit is suitable for this purpose, this sensor unit preferably having at least one distance sensor and preferably having at least one 2D distance sensor array. With the at least one distance sensor or the at least one 2D distance sensor array, a distance between the highly compressed filter tow material on the one hand and the packaging material of the packaging casing on the other hand can be exactly detected. For example, it is conceivable in this context that the distance between the non-contact, at least one distance sensor or the non-contact, at least one 2D distance sensor array and the filter tow material, on the one hand, and the distance between the non-contact, at least one a distance sensor or the non-contact, at least one 2D distance sensor array and the packaging sleeve are detected, the actual distance between the packaging sleeve and the filter tow material then being able to be determined taking into account the thickness of the packaging sleeve. In this context, it is particularly conceivable that the non-contact distance sensor or the non-contact 2D distance sensor array has at least one light, infrared rays, radio waves, microwaves, terra heart rays or ultrasound sensors. A distance measurement between the filter tow material and the packaging sleeve can preferably be carried out by means of a transit time and phase position measurement using radio waves, light, infrared or ultrasound. It can further be provided that the distance measurement can be carried out by means of triangulation. Alternatively or in addition to this, it is conceivable to carry out a flat distance measurement. For example, before packing the compressed filter tow bale, the distance between the sensor device and the filter tow material can be determined using a 2D distance measuring method, a 2D distance measurement being carried out again after the packaging sleeve has been applied, but this time with reference to the Distance between the sensor device and the packaging envelope. Through a BE2016 / 0083 - 11 Comparison of the two recorded 2D distance measurements can easily be determined based on the actual distance between the packaging sleeve and the filter tow material. In particular, it has been recognized in the present invention that to reduce the risk of bale bursts after releasing the packaged filter tow bale from the baler, the amount of air trapped between the packaging wrap and the high density filter tow material is a maximum does not exceed. This is based on the knowledge that the amount of air trapped between the packaging sleeve and the highly compressed filter tow material during the packaging process during the release of the airtightly packed FilterTow bale from the baling press is decisive for an additional increase in the bale height. However, the amount of increase in height when the bale is released from the baler must not exceed a maximum value in order to effectively prevent the packaging material from absorbing excessive forces resulting from the expansion of the filter tow material. This would not only negatively affect the flatness of the top and bottom of the finished bale, but would also lead to the packaging material having to be designed to absorb these forces. If, in addition, a large part of the expansion forces occurring during the expansion of the filter tow material after being released from the baler is absorbed via the packaging material, there is an increased risk of a bale burst, especially if the packaging envelope is accidentally damaged when handling the finished bale. Investigations have shown that the failure rate in the production of filter tow bales can be effectively reduced below 1% if the compressed filter tow bale is packed with the airtight packaging envelope which completely encloses the compressed filter tow bale is placed around the compressed filter tow bale in such a way that at a temperature of 20 ° C. a maximum of 50 liters, preferably a maximum of 30 liters, and more preferably a maximum of 10 liters of air is enclosed between the packaging sleeve and the highly compressed filter tow material. The failure rate for the last-mentioned volume of air enclosed between the packaging sleeve and the highly compressed filter tow material is the failure rate BE2016 / 0083 - Even reduced to significantly below 0.2% in the production of filter tow bales. The amount of air enclosed during packaging of the compressed filter tow bale between the packaging sleeve and the highly compressed filter tow material can preferably be determined indirectly by measuring the distance between the packaging sleeve and the highly compressed filter tow material. The optical measurement methods described above are particularly suitable for the distance measurement. In a preferred implementation of the method according to the invention, the filter tow bale compressed in the baler is provided in such a way that it has a cuboid shape with a preferably rectangular base area of at least 6,500 cm 2 and preferably of at least 8,500 cm, which is adapted to the dimensions of a transport pallet, in particular a Europool pallet 2 , and has a height of at least 75 cm and preferably of at least 85 cm. The filter tow bale should be provided in such a way that the filter tow bale compressed in the baler has a bale density of at least 300 kg / m3. If, in the packaging step, the packaging sleeve is then placed on the compressed filter tow bale in such a way that in the volume enclosed by the packaging sleeve at a temperature of 20 ° C. a maximum of 650 liters of air, preferably a maximum of 450 liters of air and more preferably a total of maximum 400 liters of air are contained, several synergistic effects can be achieved: On the one hand it is ensured that the occurrence of bale bursts after the release of the bales produced in this way from the baling press is almost impossible (failure rate well below 0.5%). On the other hand, disruptive bulges on the top and bottom of the bale released from the baler are effectively prevented, so that the stackability of the bale is ensured. In particular, however, in this development of the method according to the invention, highly compressed filter tow bales can be produced, in which the pressing forces and pressing times customary in the packaging of filter tow material can even be reduced. As far as the material of the packaging sleeve is concerned, a plastic film is particularly suitable. The film preferably consists of B E2016 / 0083 - 13 polyethylene, in particular LDPE, or from modified polyethylene (LLDPE) or from a composite film with a polyamide and a polyethylene layer. For advertising and / or aesthetic purposes, a colored or printed film can also be used as the packaging film. This is particularly useful if the filter tow material to be packaged is light-sensitive. The packaging film preferably has a thickness of 100 to 400 μm, so that it can simultaneously serve as transport packaging. As already stated, in the case of a bale produced by the method according to the invention, it is not necessary to add additional transport packaging made of cardboard boxes, plastic fabric etc. in order to add the packaging film of the bale. Nevertheless, an additional or alternative modification of the finished bale is not necessary because the risk of the bale bursting due to the special packaging step proposed in the present invention can hardly occur. The compressed filter tow bale in cuboid form is generally provided with the aid of a baler known from the prior art. On the one hand, the method according to the invention can be carried out in such a way that the amount of filter tow material provided for packaging is first mechanically compressed in the baler and then wrapped with the packaging sleeve, the airtight sealing of the packaging sleeve preferably taking place within the baler, so that the entire manufacturing process can be carried out in one place. Of course, it is also possible to prepare the compression of the FilterTow material in a separate station. In this case, the compressed filter tow bale in an "auxiliary packaging", which may consist of holding clips, for example, is fed to a packaging station, where the auxiliary packaging is removed and the compressed filter tow bale is wrapped with the airtight packaging film. This embodiment would have the advantage that the entire method is not carried out in the baler, so that the baler has a higher availability. In addition, the pressing cycle is shorter and there are several degrees of freedom in the application of the packaging sleeve, since the compressed bale is accessible from all sides in the packaging station. B E2016 / 0083 According to a further aspect of the packaging method according to the invention, it is provided in particular that in the packaging process step the compressed filter tow bale is packaged with the packaging envelope in such a way that the volume enclosed by the packaging envelope is released after the packaged filter tow bale has been released Can enlarge baler by at least 32 liters and preferably by at least 70 liters without stretching or stretching the material of the packaging sleeve. In this way, when packing the compressed filter tow material, a “growth reserve” is deliberately provided in the packaging material surrounding the compressed bale. This growth reserve can be introduced into the packaging material, for example, in that the packaging material deliberately has a fold area in some areas, which unfolds when the packaged bale is released and thus, in a predictable manner, an increase in the bale height up to a final height predetermined in advance over the fold area Bale allows. The growth reserve guaranteed over the fold area is preferably selected such that when the filter tow material expands after being released from the baling press, an increase in volume of the volume enclosed by the airtight packaging envelope is ensured until the negative pressure which arises inside the bale Outside atmosphere is large enough to be able to equalize the restoring forces of the filter tow material as completely as possible, so that the material of the packaging sleeve is neither stretched or stretched and only negligible or no forces have to be absorbed by the packaging material. In a particularly preferred implementation of the method according to the invention, it is provided that before the compressed FilterTow bale is packed with the airtight packaging sleeve, the filter tow bale compressed in a square shape is provided between a cover film part and a base film part, in the following Packing step the airtight packaging envelope completely surrounding the compressed filter tow bale is formed by welding or gluing the two film parts. In this context, it is particularly conceivable that in the packaging step a sleeve film part on the side surfaces of the B E2016 / 0083 - 15 compressed filter tow bale is applied. The opposite end regions of the cuff film part are then brought together on the face side and connected to one another. In addition, the outer surface of the sleeve film part is connected to the base film part and the cover film part in such a way that an airtight packaging envelope completely encloses the compressed filter tow bale. It is particularly preferred if the cuff film part is applied to the side surfaces of the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and more preferably at least 95% of the lateral surface of the cuff film part on the highly compressed filter Tow material lies directly and touches it or is at least less than 15 mm from the highly compressed filter tow material. The term “jacket surface of the sleeve film part” used herein is to be understood as the ceiling surface of the sleeve film part which, when the filter tow bale released from the baling press is in the finished state, points in the direction of the filter tow material and touches it. The term “this touches” is understood to mean that at least 80%, preferably at least 90% and more preferably at least 95% of the packaging sleeve lies directly against the highly compressed filter tow material and therefore touches it or at least less than 15 mm is spaced from the high density filter tow material. In this embodiment of the method according to the invention, it is particularly advantageous if the sleeve film part is designed as a flat film. Basically, a maximum gas permeability of 10,000 cm3 / (m2 xdx bar), and at most about 200 cm3 / (m2 xdx bar) and even more preferably of at most about 20 cm3 / (m2 xdx bar) should be measured in each case according to DIN 2000-07 (Status: filing date) at 23 ° C and 75% relative humidity for air. The tensile strength of the material of the packaging sleeve should have at least 10 N / 15 mm, in particular at least about 100 N / 15 mm, and preferably at least about 200 N / 15 mm, and in each case measured according to DIN EN ISO527-1 "General principles for determining the Tensile properties of plastics ”or measured according to DIN EN ISO527-3“ test conditions for foils and sheets ”(current status: filing date). BE2016 / 0083 It should be noted here that the above-mentioned requirements with regard to the tensile strength of the material of the packaging envelope are only necessary because when the compressed filter tow bale is packed with an airtight packaging envelope completely surrounding the compressed filter tow bale, the material serving as the packaging envelope is used is preferably applied with pretension in order to achieve that the packaging envelope can be applied to the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and even more preferably at least 95% of the packaging envelope directly on the highly compressed filter tow -Material is present and this touches it or is at least less than 15 mm from the highly compressed filter tow material. The elasticity of the material used as packaging wrap should be a maximum of 1000 mm / 15 mm measured according to DIN EN ISO 527 (see above). The yield stress at 10% elongation in the longitudinal direction should be a maximum of 38 to 47 N / 15 mm according to DIN EN ISO 527 (see above). Since the packaging sleeve also preferably represents the transport packaging of the filter tow bale, it is particularly advantageous in this context if the specific puncture force in relation to the 0.8 mm mandrel according to DIN EN 14477 (2004 edition) 06) is at least 8 N. With the above-mentioned maximum gas permeability of the material serving as packaging wrap, possibly in combination with the minimum piercing force mentioned, it is ensured that in practical use, after the release from the baling press (due to the self-expansion of the filter tow material), a setting occurs inside the bale Suppression against the outside atmosphere can be maintained for a sufficiently long time. “Sufficiently long” in this context means at least 24 hours and preferably until the packaged bale is deliberately opened on a filter rod machine for further processing of the packaged bale material. However, it has been shown that it is also harmless if the wrapping of the bale is inadvertently perforated, for example during transport for further processing of the filter tow material on a filter rod machine. However, it should be mentioned as advantageous that the airtightness of the packaging casing should be possible up to the point in time BE2016 / 0083 - 17 the intended opening of the bale is ensured on a filter rod machine. When using a cuff film part which has these conditions, in particular with regard to the tensile strength and extensibility, it is advantageous if the cuff film part is prestressed after the cuff film part has been applied to the side surfaces of the compressed filter tow bale. This is preferably done with an average pretensioning force of at least 50 N and preferably of at least 75 N. In this way, in an easy to implement but nevertheless effective manner, it can be achieved that in the packaging step between the packaging sleeve (in particular sleeve film part) and the compressed one Filter tow material a maximum of 20% of the sleeve film part not directly against the filter tow material. Various possibilities for implementing the method according to the invention are described below by way of example with reference to the accompanying drawings. Show it: FIG. la schematically shows the filter tow material to be packaged in the baler or filling can before pressing in an exemplary embodiment of the method according to the invention for producing a packaged bale from highly compressed filter tow material; FIG. lb schematically shows the filter tow material to be packaged after pressing in the baler or filling can, specifically in the exemplary embodiment of the method according to the invention according to FIG. la; FIG. lc schematically the application of a cuff film part to the side surfaces of the compressed filter tow bale according to FIG. lb; and FIG. Id schematically the connection of the outer surface of the sleeve film part with the base film part and the cover film part in the packaging method exemplarily shown in the drawings. In the exemplary embodiment of the method according to the invention, filter tow material 1 is introduced into a baler, as shown in FIG. la is indicated schematically. In the baler, which has a pressing force of 300 to 400 t, for example, the FilterTow material 1 is compressed to the desired pack size (see FIG. 1b). B E2016 / 0083 The pressing is preferably carried out in such a way that the filter tow bale compressed in the baler has a packing density of at least 250 kg / m2 and preferably a packing density of at least 300 kg / m2. Furthermore, the pressing is preferably carried out in such a way that the filter tow bale compressed in the baler has a packing density of at most 700 kg / m2 and preferably a packing density of at most 600 kg / m2. The pack size, i.e. the height of the FilterTow bale compressed in the baler is preferably at least 700 mm. As already explained at the beginning, by providing the compressed filter tow bale in the baler, the filter tow material 1 is pressed in such a way that the elastic resilience of the filter tow material is reduced. In the case of FIG. la and FIG. Ib schematically illustrated embodiment, the press ram 10, 10 ′ of the baler is prepared accordingly before the filter tow material is filled into the baler or before the filter tow material is filled into the filling press of the baler. In detail, it is provided in the embodiment shown schematically in the drawings that the filter tow material is compressed in the baler between a cover film part 11 and a base film part 12. For this purpose, it is provided in the embodiment shown schematically in the drawings that before the filter tow material is pressed and before the filter tow material is filled into the filling can, the bottom of the filling can is garnished with a base film part 12. The filter tow material 1 to be pressed is then placed in the filling can prepared in this way. Before the contents of the full filling can, including the bottom of the filling can, are pushed into the baling chamber on the baling press, the upper press ram 10 of the baling press is also garnished with a foil part (lid foil part 11). By providing the cover and base film part 11, 12, the base and cover film that is to be placed at the correct positions (above and below the bale) is already in place before the filter tow material is pressed. Prepared in this way, the filter tow material 1 is pressed into a compressed filter tow bale in the baling press (cf. FIG. 1b). The actual BE2016 / 0083 The pressing process corresponds to the usual pressing processes known from the prior art and is not part of the invention disclosed herein. Basically, it is advantageous if the filter tow material is pressed in the baler according to a predetermined program sequence, so that in the compressed filter tow bale the relaxing event sequence follows a predetermined or definable event sequence Recovery rate is reduced. It is advantageous here if the pressing process lasts for at least 4 minutes and preferably for at least 5 minutes in order to ensure that the relaxing portion of the deformation in the filter tow material is sufficiently reduced. In detail, and as shown in FIG. 1 b is shown schematically, a compressed filter tow bale is thus provided in a cuboid shape in the baling press between the lid film part 11 and the bottom film part 12. In the subsequent step, the compressed filter tow bale is packaged with an airtight packaging envelope that completely encloses the compressed filter tow bale. According to the schematic representation in FIG. In the exemplary embodiment of the method according to the invention, a cuff film part 13 is placed on the side surfaces of the compressed filter tow bale, the cuff film part 13 having a lateral surface with two opposite end regions. The opposite end regions of the cuff film part 13 are then brought together at the end and connected to one another. Furthermore, as shown in FIG. Id shown schematically - the outer surface of the sleeve film part 13 connected to the bottom film part 12 and the lid film part 11. The connection of the end regions of the cuff film part 13 to one another and the connection of the outer surface of the cuff film part 13 to the base film part 12 and the cover film part 11 takes place in such a way that an airtight packaging envelope completely encloses the compressed filter tow bale. In the method according to the invention, as shown schematically in the drawings, the sleeve film part 13 is applied to the side surface of the compressed filter tow bale in such a way that at least 80%, preferably at least 90%, and more preferably at least 95% of the The outer surface of the sleeve film part 13 bears directly against the highly compressed filter tow material and therefore from there B E2016 / 0083 -20 touched, or at least less than 15 mm from the highly compressed FilterTow material. It is particularly advantageous with regard to reducing the risk of a bale burst if a compressed FilterTow bale is provided in the baler, which has a cuboid shape with a preferably rectangular base area of at least 6,500 cm 2, which is adapted to the dimensions of a transport pallet, in particular a Europool pallet and preferably of at least 8,000 cm 2, and a height of at least 75 cm (pack size) and preferably of at least 85 cm. The compressed filter tow bale with these dimensions provided in the baler has a bale density of at least 300 kg / m3 in the exemplary embodiment. The term “dimensions of a transport pallet” used here means in particular the dimension of a transport pallet that is usually used. This is particularly a transport pallet adapted to the usual container dimensions, such as a Europool pallet. Europool pallets are based on a basic module of 400 mm x 600 mm. Pallets in this size are also called "1/4 Europool pallets" and correspond to the size of a so-called VDA box. The wooden Europool pallets EUR, which have been common for many years, measure 800 x 1200 x 144 mm. The half Europool pallets with 800 mm x 600 mm are also called display pallets. At EP AL they are called "EUR 6 pallets"; Another name is Düsseldorfer Palette. Also widespread are the somewhat larger so-called industrial pallets (1000 x 1200 x 144 mm), which are standardized by EP AL as "EUR 3 pallets" or in an enhanced version as "EUR 2 pallets". Non-standard large pallets often have twice the industrial size, i.e. they are 2000 x 1200 mm or 2000 x 1250 mm in size. The pallets that are common on the American continent and partly also in China measure 48 x 40 inches, i.e. at 1,219.2 mm x 1,016 mm they correspond roughly to industrial pallets (1,200 mm x 1,000 mm), while in Asia generally 1,100 mm x 1,100 mm or 1.140 mm x 1.140 mm pallets can be used. In this exemplary embodiment, the cuff film part 13 is placed against the side surface of the compressed filter tow bale such that in the B E2016 / 0083 -21 volume of the cuff film part 13, the cover film part 11 and the body film part 12 at a temperature of 20 ° C. contains a maximum of 650 liters of air, preferably a maximum of 450 liters of air and more preferably a maximum of 400 liters of air. As already explained in the general part of the description, it is effectively achieved in this way that the risk of a bale burst after the airtightly enclosed bale is released from the baling press is reduced to significantly less than 1%. In the exemplary embodiment shown schematically in the drawings, in which the baling press is garnished with a base foil 12 and a cover foil part 11 before the filter tow material is compressed, and then a sleeve foil part 13 around the side surface of the compressed Bale is applied, it is advantageous if the cuff film part is applied to the side surface of the compressed FilterTow bale in such a way that at a temperature of 20 ° C a maximum of 50 liters of air, preferably a maximum of 30 liters and more preferably a maximum of 10 liters of air between the Shell surface of the cuff film part and the highly connecting filter tow material is included. This can be achieved, for example, by applying the sleeve film part 13 with an average application voltage of at least 50 N and preferably of at least 75 N around the side surfaces of the compressed filter tow bale. This applied voltage can be easily checked or monitored using strain gauges or similar sensors. In order to form an airtight packaging envelope, it is provided in the embodiment shown schematically in the drawings that a vertically extending weld seam, in particular fin seam, is formed in a vertical overlap region formed when the opposite end regions of the sleeve film part 13 are brought together at the end. The sleeve film part is then pretensioned and fixed, in particular temporarily fixed, in the direction of the vertically running weld seam, with the aid of clamps or similar fixing means. It is then provided in one exemplary embodiment that a horizontally circumferential overlap region is formed between the upper end region of the sleeve film part 13 and a circumferential edge region of the cover film part 11. In the same way, one becomes horizontal B E2016 / 0083 -22 circumferential overlap region between the lower end region of the sleeve film part 13 and a circumferential edge region of the bottom film part 12. Subsequently, a circumferential weld seam is made, in particular a fin seam in the horizontally circumferential one Overlap area formed. The vertically running weld seam and the circumferential weld seams in the horizontally circumferential overlap regions are carried out in such a way that with the bottom film part 12, with the cover film part 11 and with the sleeve film part 13 as a whole a completely enclosing the compressed Filter10 tow bale, airtight packaging envelope is formed. To form the horizontally circumferential overlap region, it is advantageous in this context if the respective edge regions of the lid film part 11 and of the bottom film part 12 are pulled outward from the bale. According to an exemplary embodiment, when the sleeve film part 13 bears against the side surface of the filter tow bale, it is provided that the vertical overlap region is preferably arranged centrally between two vertically running corner edges of the filter 20 tow bale. For prestressing the sleeve film part 13 in the direction of the vertical weld seam, film material of the sleeve film part 13 can then preferably be pushed manually in the direction of the vertical weld seam such that the overlap area is enlarged in the horizontal direction. It is advantageous if this is the case Cuff film part 13 is preloaded with an average preload force of at least 50 N and preferably of at least 75 N. This pretensioning force can be monitored in a simple manner, for example by attaching it according to the strain gauges. In the method according to the invention, it is in the formation of the circumferential weld in the horizontally circumferential Overlap areas are advantageous if the circumferential weld seam is formed with a predetermined or definable minimum distance from the bale in the horizontally circumferential overlap area. This predetermined or definable minimum distance is in a range between 2 to 20 cm, and preferably in a range between 5 to 10 cm. This distance between the bale and the weld seam ultimately creates that B E2016 / 0083 -23 is the amount by which the packaged bale can grow without tension on the packaging when the bale is released from the baler. In general terms, the predetermined or definable minimum distance between the circumferential weld seam and the bale should be selected depending on the elastic recovery behavior of the compressed filter tow material after the filter tow material has been released from the baler. After the airtight packaging of the compressed filter tow bale, the filter tow bale is released from the baler. This is preferably done by gradually increasing the distance between the upper and lower press plate of the baler in order to allow a gradual expansion of the filter tow material. This prevents voltage spikes. In this context it is advantageous if in a first step the distance between the upper and lower press plate is increased by 10 to 35 mm, preferably by 15 to 30 mm, and more preferably by 20 to 25 mm. In a second step delayed by the first step, the distance between the upper and the lower press plate is then increased to at least 1,200 mm. Briefly summarized, the packaging process shown schematically in the drawings can be characterized as follows: Method step i): Providing a filter tow bale in cuboid form compressed in a baler Process step ii): Packing the compressed filter tow bale with an airtight packaging envelope completely surrounding the compressed filter tow bale Process step iii): release the filter tow bale completely enclosed with the airtight packaging envelope from the baling press According to the invention, it is provided that in process step ii) the packaging envelope is placed against the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and even more preferably at least 95% of the packaging envelope lies directly against the highly compressed FilterTow material and this touches it or is at least less than 15 mm from the highly compressed filter tow material. B E2016 / 0083 In this context, it is particularly advantageous if in Process step ii) the packaging sleeve is placed around the compressed FilterTow bale in such a way that at a temperature of 20 ° C. a maximum of 50 liters, preferably a maximum of 30 liters, and more preferably a maximum of 10 liters of air between the outer surface of the sleeve film part 13 and the highly compressed one Filter tow material is included. In preferred implementations of the packaging method according to the invention, in process step i) the filter tow bale compressed in the baler has a cuboid shape with a preferably rectangular base area of at least 6,500 cm 2 and preferably of at least 8,500 cm 2 , and a height of at least 75 cm and preferably of at least 85 cm, the filter tow bale being provided in method step i) in particular in such a way that the filter tow bale compressed in the baler has a bale density of at least 300 kg / m 3 . In this context, it is advantageous if, in process step ii), the packaging sleeve is placed against the compressed FilterTow bale in such a way that in the volume enclosed by the packaging sleeve at a temperature of 20 ° C a maximum of 650 liters of air, preferably a maximum of a total of 450 liters of air and even more preferably a maximum of 400 liters of air are contained. As an alternative or in addition to this, it is conceivable if, in method step i), the filter tow bale compressed in a cuboid form in the baler is provided between a cover film part 11 and a base film part 12, in the subsequent process step ii) the compressed filter -Tow-Bale completely enclosing, airtight packaging envelope is formed by welding or gluing the two film parts. According to one aspect of the invention, which has also found its way into the packaging method shown schematically in the drawings, it is provided that in method step i) the filter tow bale, which is compressed in the baler, in cuboid form between a cover film part 11 and a base film part 12 is provided. With regard to the subsequent process step ii), it is provided that this process step has the following process steps: B E2016 / 0083 -25a) applying a sleeve film part 13 to the side surfaces of the compressed filter tow bale, the sleeve film part 13 having an outer surface with two opposite end regions; b) merging the opposite end regions of the sleeve film part 13; and c) connecting the opposite end regions of the cuff film part 13 to one another and connecting the outer surface of the cuff film part 13 to the base film part 12 and the cover film part 11 in such a way that, overall, an airtight packaging envelope completely encloses the compressed filter tow bale is formed. It is particularly advantageous here if in step a) Cuff film part 13 is placed around the side surfaces of the compressed FilterTow bale in such a way that at least 80%, preferably at least 90% and more preferably at least 95% of the outer surface of the cuff film part 13 is in direct contact with the high-density filter tow material and touches it or at least less than 15 mm from the high density filter tow material. In a further development of this exemplary embodiment of the packaging method according to the invention, it is provided that in method step i) the filter tow bale compressed in a baler has a cuboid shape with a preferably rectangular base area of at least 6,500 cm 2 and preferably of at least 8,500 cm 2 , and a height of at least 75 cm and preferably of at least 85 cm, the filter tow bale being provided in method step i) in such a way that the filter tow bale compressed in the baler has a bale density of at least 300 kg / m 3 . It is provided here that in process step a) the sleeve film part 13 is placed against the side surfaces of the compressed filter tow bale in such a way that the temperature at the temperature encloses the sleeve film part 13, the cover film part 11 and the bottom film part 12 from 20 ° C a total of a maximum of 650 liters of air, preferably a total of a maximum of 450 liters of air and more preferably a total of a maximum of 400 liters of air. Alternatively or in addition to this, it is conceivable if in the method step a) the sleeve film part 13 is placed on the side surfaces of the compressed filter tow bale in such a way that at a temperature of 20 ° C. maximum B E2016 / 0083 -2650 liters, preferably a maximum of 30 liters, and more preferably a maximum of 10 liters of air between the outer surface of the sleeve film part 13 and the highly compressed filter tow material is enclosed. For this purpose, it is particularly provided that in method step a) Cuff film part 13 with an average application voltage of at least 50 N and preferably of at least 75 N is applied around the side surfaces of the compressed filter tow bale. According to a development of the last-described embodiments, method step ii) also has the following method steps: d) forming a vertically extending weld seam, in particular a fin seam, in a vertical overlap region formed when the opposite end regions of the sleeve film part 13 are brought together; e) prestressing the sleeve film part 13 in the direction of the vertically running weld seam and fixing, in particular temporarily fixing, the sleeve film part 13 in its prestressed state; t) forming a horizontally circumferential overlap region between the upper end region of the sleeve film part 13 and a circumferential edge region of the cover film part 11 and forming a horizontally circumferential overlap region between the lower end region of the sleeve film part 13 and a circumferential edge region of the base film part 12; and g) Forming a circumferential weld seam, in particular a fin seam, in the horizontally circumferential overlap regions. It is particularly provided here that the vertical The weld seam and the circumferential weld seams in the horizontally circumferential overlap areas are carried out in such a way that an airtight packaging envelope is formed which completely encloses the compressed filter tow bale with the base film part 12, with the cover film part 11 and with the sleeve film part 13 . Preferably, to form the horizontally rotating Overlap areas in method step f) the respective edge areas of the lid film part 11 and the bottom film part 12 are pulled outwards away from the bale. On the other hand, it is also advantageous if, in method step e), the sleeve film part 13 has a middle one BE2016 / 0083 Biasing force of at least 50 N and preferably of at least 75 N is biased. In a preferred implementation of the last-mentioned embodiments, it is provided that in method step a) the sleeve film part 13 is placed against the side surfaces of the filter tow bale in such a way that the vertical overlap area is preferably centered between two vertically running corner edges of the filter tow. Bale is arranged, wherein for biasing the sleeve film part 13 in the direction of the vertical weld seam in method step e), preferably manually pushing film material of the sleeve film part 13 in the direction of the vertical weld seam such that the overlap area is increased in the horizontal direction. Basically, it is advantageous if in process step g) the circumferential weld seam is formed with a predetermined or definable minimum distance from the bale in the horizontally circumferential overlap areas. Here, the predetermined or definable minimum distance should be in a range between 2 to 20 cm and preferably in a range between 5 to 10 cm. In particular, the predetermined or definable minimum distance between the circumferential weld seam and the bale should be selected depending on the elastic recovery behavior of the compressed FilterTow material after the filter tow material has been released from the baler. According to a preferred implementation of the last-mentioned exemplary embodiments, it is provided that in the process step e) the cuff film part 13 is particularly temporarily fixed in its pretensioned state, namely by folding the vertical overlap area laterally and the folded overlap area preferably releasably with an adhesive tape or the like Fixing agent is fixed to the bale. As an alternative or in addition to this, it is advantageous if, in method step a), the sleeve film part 13 is placed in a biased manner in the horizontal direction on the side surfaces of the filter tow bale. In this context, it is particularly conceivable if, in method step a), the sleeve film part 13 is positioned relative to the cover film part 11 and the bottom film part 12 and is temporarily fixed in the positioned state. For positioning and temporary fixing of the cuff film part BE2016 / 0083 The upper and / or lower edge area of the sleeve film part 13 is preferably held by a holding device on the baler. In this context, it is particularly advantageous if the baler has an upper and a lower press plate, between which the compressed filter-tow bale is provided in method step i), the upper edge region being used for positioning and temporarily fixing the sleeve film part 13 of the sleeve film part 13 is held by a holding device arranged on the upper press plate of the baler, in particular by clamping. Here, in particular, immediately before the formation of the horizontally circumferential overlap regions in the Method step f) the temporary fixation of the sleeve film part 13 can be released. According to one aspect of the present invention, method step i) has the following method steps: - Prepare a filling can by garnishing the bottom of the filling can to the bottom film part 12; - Preparing a press ram 10 of the baler by garnishing the press ram 10 with the cover film part 11; - Inserting the filter tow material to be packed into the prepared filling can; and - Pressing the filter tow material inserted into the prepared filling can by moving the prepared press ram 10 into the filling can from above. Alternatively, it is conceivable if method step i) has the following method steps: - Preparation of a fixed press yoke by garnishing the press yoke with the cover film part 11; - Preparing a press stamp 10 'of the baler by garnishing the press stamp 10' with the bottom film part 12; Arranging the filter tow material to be packaged between the prepared press yoke and the press die 10 '; and - Pressing the filter tow material by moving the prepared press ram 10 'from below in the direction of the press yoke. With regard to method step iii), it is provided in particular that the baler has an upper and a lower press plate, the filter tow bale being fired from the baler by gradually moving the B E2016 / 0083 -29The distance between the upper and lower press plate is increased. In particular, it is provided that in a first step the distance between the upper and the lower press plate is increased by 10 to 35 mm, preferably by 15 to 30 mm, and more preferably by 20 to 25 mm. In a second step, which is delayed in time from the first step, the distance between the upper and the lower press plate is preferably increased to at least 1200 mm. In particular, it is advantageous if, prior to releasing the filter tow bale completely enclosed with the airtight packaging envelope in method step ii) from the baling press, the filter tow bale is compressed in the baling press for at least 180 s and preferably for at least 250 s that there is a bale density of at least 300 kg / m 3 . This ensures that the elastic recovery behavior of the filter tow material is sufficiently reduced. The invention is not limited to the exemplary embodiment of the packaging method according to the invention shown in the drawings, but results from an overview of all the features disclosed herein. In particular, the invention also relates to a filter tow bale in a cuboid shape produced by the method according to the invention, in particular with a packing density of at least 250 kg / m3. Should the content of any patents, patent applications and publications referred to in this application conflict with the content of the present application in that the If a definition of the present application appears to be unclear in a collision, the present application takes precedence. B E2016 / 0083
权利要求:
Claims (16) [1] EXPECTATIONS 1. A process for producing a packaged bale from highly compressed filter tow material, the process comprising the following process steps: Providing a filter tow bale in cuboid form compressed in a baler; and ii) packaging the compressed filter tow bale with an airtight packaging envelope completely surrounding the compressed filter tow bale, wherein in process step ii) the packaging envelope is applied to the compressed filter tow bale in such a way that at least 80 %, preferably at least 90% and even more preferably at least 95% of the packaging sleeve lies directly against the highly compressed filter tow material and touches it or is at least less than 15 mm from the highly compressed filter tow material. [2] 2. The method according to claim 1, wherein in process step ii) the packaging sleeve is placed around the compressed filter tow bale in such a way that at a temperature of 20 ° C a maximum of 50 liters, preferably a maximum of 30 liters, and more preferably a maximum of 10 liters of air is enclosed between the packaging sleeve and the high-density filter tow material. [3] 3. The method according to claim 1 or 2, wherein in method step i) the compressed in a baler filter tow bale a cuboid shape with a to the dimensions of a transport pallet, in particular Europool pallet, preferably rectangular base area of at least 6,500 cm 2 and preferably of at least 8,500 cm 2 , and a height of at least 75 cm and preferably of at least 85 cm, wherein in Method step i) the filter tow bale is provided in such a way that the filter tow bale compressed in the baler has a bale density of at least 300 kg / m 3 , and in method step ii) the packaging envelope is attached to the compressed filter tow -Bale is put on, BE2016 / 0083 -31 that the volume enclosed by the packaging envelope contains a maximum of 650 liters of air at a temperature of 20 ° C., preferably a maximum of 450 liters of air in total and more preferably a total of maximum 400 liters of air. [4] 4. The method according to any one of claims 1 to 3, wherein in Process step ii) the compressed filter tow bale is packaged with the packaging sleeve in such a way that the volume enclosed by the packaging sleeve can increase by at least 32 liters and preferably by at least 70 liters after releasing the packaged filter tow bale from the baling press that the material of the packaging sleeve is stretched or stretched. [5] 5. The method according to any one of claims 1 to 4, wherein in Method step i) the filter tow bale compressed in cuboid form in the baler is provided between at least one cover film part and a bottom film part, and in step ii) the airtight packaging envelope completely surrounding the compressed filter tow bale by welding or Gluing is formed from the film parts. [6] 6. The method according to any one of claims 1 to 5, wherein in Method step i) the filter tow bale compressed in a cuboid shape in the baler is provided between a cover film part and a base film part, and process step ii) comprises the following process steps: a) applying a cuff film part to the side surfaces of the compressed filter tow bale, the cuff film part having a lateral surface with two opposite end regions; b) bringing together the opposite end regions of the sleeve film part; and c) connecting the opposite end regions of the sleeve film part to one another and connecting the outer surface of the sleeve film part to the base film part and the cover film part in such a way that overall BE2016 / 0083 An airtight packaging envelope is formed which completely encloses the compressed filter tow bale, wherein in process step a) the sleeve film part is placed around the side surfaces of the compressed filter tow bale in such a way that at least 80%, preferably at least 90% and even more preferably, at least 95% of the outer surface of the sleeve film part directly rests on the highly compressed filter tow material and touches it or is at least less than 15 mm from the highly compressed filter tow material; and wherein the sleeve film part is listed in particular as a flat film. [7] 7. The method according to claim 6, wherein in process step i) the filter tow bale compressed in a baler has a cuboid shape with a preferably rectangular base area of at least 6,500 cm 2 and preferably of at least 8,500 cm, which is adapted to the dimensions of a transport pallet, in particular Europool pallet 2 , and has a height of at least 75 cm and preferably of at least 85 cm, the filter tow bale being provided in method step i) in such a way that the filter tow bale compressed in the baler has a bale density of at least 300 kg / m 3 , and wherein in method step a) the cuff film part is placed against the side surfaces of the compressed filter tow bale in such a way that in the volume enclosed by the cuff film part, the lid film part and the bottom film part at a temperature of 20 ° C a total of a maximum of 650 liters of air, preferably a total of a maximum of 450 liters of air and still preferred it contains a maximum of 400 liters of air. [8] 8. The method according to claim 6 or 7, in particular according to claim 7, wherein in method step a) the sleeve film part is applied to the side surfaces of the compressed filter tow bale in such a way that at a temperature of 20 ° C a maximum of 50 liters, preferably a maximum of 30 liters, and more preferably a maximum of 10 liters of air is enclosed between the outer surface of the sleeve film part and the highly compressed filter tow material. B E2016 / 0083 -339. Method according to one of claims 6 to 8, wherein in Process step a) the cuff film part with a medium one Application voltage of at least 50 N and preferably of at least 75 N is applied around the side surfaces of the compressed filter tow bale. [9] 10. The method according to any one of claims 6 to 9, wherein the Process step ii) further comprises the following process steps: d) forming a vertically running weld seam, in particular a fin seam, in a vertical overlap region formed when the opposite end regions of the sleeve film part are brought together; e) prestressing the cuff film part in the direction of the vertically running weld seam and fixing, in particular temporary fixing, the cuff film part in its pretensioned state; f) forming a horizontally circumferential overlap region between the upper end region of the cuff film part and a circumferential edge region of the cover film part and forming a horizontally circumferential overlap region between the lower end region of the cuff film part and a circumferential edge region of the base film part; and g) Forming a circumferential weld seam, in particular a fin seam, in the horizontally circumferential overlap regions, the vertically extending weld seam and the circumferential weld seams in the horizontally circumferential overlap regions being carried out in such a way that with the base film part, with the cover film part and with the cuffs -Film part is formed an airtight packaging envelope completely surrounding the compressed filter tow bale; and wherein in process step e) the sleeve film part is preferably pretensioned with an average pretensioning force of at least 50 N and preferably of at least 75 N. [10] 11. The method according to claim 10, wherein in step g) the circumferential weld with a predetermined or definable BE2016 / 0083 -34Minimum distance from the bale in the horizontal circumferential Overlap areas is formed, wherein the predetermined or definable minimum distance is preferably in a range between 2 to 20 cm and more preferably in a range between 5 to 10 cm, and / or wherein the predetermined or definable minimum distance between the circumferential weld seam and the bale depends on the elastic recovery behavior of the compressed filter tow material after the filter tow material has been released from the baler. [11] 12. The method according to any one of claims 6 to 11, wherein in method step a) the sleeve film part is placed biased in the horizontal direction on the side surfaces of the FilterTow bale. [12] 13. The method according to any one of claims 1 to 11, wherein step i) comprises the following steps: - Prepare a filling can by garnishing the bottom of the filling can to the bottom film part; - Preparation of a press stamp of the baler by garnishing the press stamp with the cover film part; - Inserting the filter tow material to be packed into the prepared filling can; and - pressing the filter tow material inserted into the prepared filling can in the baler; or wherein process step i) has the following process steps: - Preparation of a fixed press yoke by garnishing the press yoke with the cover film part; - Preparing a press stamp of the baler by garnishing the press stamp with the bottom film part; Arranging the filter tow material to be packed between the prepared press yoke and the press ram; and BE2016 / 0083 -35- Pressing the filter tow material by moving the prepared press ram from below towards the press yoke. [13] 14. The method according to claim 13, wherein the cover film part and / or the bottom film part as a flat film, in particular rectangular flat film, 5 are / is executed, and / or wherein the cover film part and the bottom film part are each formed as rectangular flat films with edge lengths that are at least 10 cm, preferably at least 20 cm and more preferably 30 to 40 cm longer than the horizontally circumferential edge lengths of the compressed Filter tow bales are. 10. The method according to any one of claims 1 to 14, wherein the Packaging sleeve has at least one film part made of plastic material which has polyethylene, in particular FDPE, or modified polyethylene (LLDPE), the at least one film part being in particular a composite film with a polyamide and / or a polyethylene layer, [14] 15 and / or wherein the at least one film part preferably has a thickness of approximately 100 to 400 μm. [15] 16. Packed filter tow bale in cuboid shape, in particular with a packing density of at least 250 kg / m3, characterized in that the filter tow bale using a method according to one of the claims [16] 20 1 to 15 was produced. BE2016 / 0083 Π7 BE2016 / 0083
类似技术:
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同族专利:
公开号 | 公开日 RU2670857C9|2018-11-30| RU2670857C1|2018-10-25| MX2017013914A|2018-06-06| CN107709168B|2021-02-19| WO2016174162A1|2016-11-03| KR102237986B1|2021-04-08| BR112017023194A2|2018-07-31| US10793305B2|2020-10-06| BE1024772A1|2018-06-26| EP3088309A1|2016-11-02| US20180305052A1|2018-10-25| KR20180018516A|2018-02-21| CN107709168A|2018-02-16| JP2018514472A|2018-06-07| DE112016001298A5|2017-12-28| JP6603328B2|2019-11-06|
引用文献:
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法律状态:
2018-08-29| FG| Patent granted|Effective date: 20180702 |
优先权:
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申请号 | 申请日 | 专利标题 EP15165662.6A|EP3088309A1|2015-04-29|2015-04-29|Method for the manufacture of a packaged filter tow bale| EP15165662.6|2015-04-29| 相关专利
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