荷兰专利NL2014628A Container containing a product to be extracted, as well as a method for manufacturing the container.

专利PDF首页>>荷兰专利

专利附录

专利说明

权利要求

类似技术

同族专利

引用文献

法律状态

优先权

专利摘要:

公开号:NL2014628A
申请号:NL2014628
申请日:2015-04-14
公开日:2016-09-23
发明作者:Barbara Arnoldus Maria Stas Marinus
申请人:Stas I P B V；
IPC主号:

专利说明:

Container containing a product to be extracted, as well as a method for manufacturing the container DESCRIPTION:
FIELD OF THE INVENTION
The invention relates to a holder with a product to be extracted therein, in particular ground coffee beans or sliced tea leaves, which holder is provided with a number of walls of which at least one wall part comprises a foil of liquid impermeable material, which foil is provided with a a plurality of local weakenings in the form of laser-formed recesses provided with a bottom.
State of the art
Such a holder is known from WO2013 / 053655A. This known container is formed by an aluminum cup which is open at one end and is closed by a plastic foil with areas which are provided with local weakenings. An aluminum foil is glued to this foil, except at the location of the aforementioned areas where the aluminum is present loosely on the plastic foil. During use of this known holder in a device suitable for this purpose, the holder with an end wall is pressed against a wall provided with outlet holes, with for instance a waffle structure. During the preparation of coffee, a high-pressure liquid is subsequently injected into the cup and the end wall provided with the film is pressed against the wafer structure by the liquid pressure built up in the cup, this end wall tearing open at a number of places. A number of the parts of the end face that are partly torn loose press a number of outlet holes in the wall substantially closed, so that ultimately a limited flow opening remains, so that the pressure built up in the cup is maintained during the extraction and foam is formed.
The aluminum foil glued to the plastic foil serves to prevent the weakening in the plastic foil from tearing open over great lengths during use. If there are too many or too large openings in the end face, the outlet holes will not be closed or will be closed less, so that the liquid flows through the container too quickly and insufficient pressure build-up takes place to obtain a good extract and foam. The aluminum foil also ensures that the containers are airtight so that oxygen cannot penetrate into the container, ensuring a long shelf life.
Summary of the invention
An object of the invention is to provide a holder of the type described in the preamble with which a good extract can be prepared during use in the known apparatus. To this end, the holder according to the invention is characterized in that a thickening and / or reinforcement of the foil is present around each weakening. The thickenings and / or reinforcements prevent the openings formed at the bottom of the weakenings from further tearing, as a result of which too large openings would be formed and the liquid would flow through the container too quickly and too much pressure loss would occur so that less extraction would take place which the taste of the extract will be less good. The attenuations are preferably evenly distributed over the entire surface of the wall portion, so that openings will be formed during the preparation process distributed over the entire surface and the liquid will flow more fully through all the product to be extracted. During use of the container in a suitable device, the liquid pressure will tear open the foil as a minimum, so that the pressure hardly decreases and, on the contrary, sufficient liquid flows through the foil. In the known container, local areas with openings are present and the liquid will not flow or will flow less or less through the product to be extracted which is present near the areas without local weakening.
The film is preferably not synthetic but made from starch and sugars (Poly Lactic Acid). The softening point / melting point of this specific film is considerably lower than synthetic film. As a result, when used in a device, the hot water used (approximately 90 degrees) quickly reaches the film at its softening point (this is also approximately 90 degrees), so that the film does not tear but the bottoms of the recesses melt open.
The said wall part preferably consists of several layers, one layer of which is formed by the said film and a further layer is formed by a sheet of filtering material to which the said film is attached. The filtering material can be a woven as a non-woven material. The foil can for instance be made of plastic, paper or aluminum. Because the foil is attached (for example, sealed) to filtering material, a slightly fiber-reinforced structure has been obtained, so that the foil is so strong that it does not fully conform to the wafer structure of the wall, so that the liquid sees an opportunity to reach various outlet holes while retaining of sufficiently high pressure so that a good extract with foam is prepared. The filter material also stops the small particles (eg coffee) that would otherwise sit in front of the holes and could lead to blockage.
An embodiment of the container according to the invention is characterized in that the sheet of filtering material is provided with at least one through-opening. This opening serves to allow hot liquid to pass through holes formed in the film more easily and faster during extraction, which liquid weakens the film through the other side, whereby more holes are formed in the film during extraction, thereby improving the extraction process .
An embodiment of the container according to the invention is characterized in that the foil consists of several layers with different temperature sensitivities. The film preferably comprises a PLA layer as well as a plastic-cellulose layer present thereon. If the film only consists of a PLA layer (polylactic acid), there is a chance that during the laser treatment of the weakening, the film will sometimes be lasered, resulting in undesired through holes. By applying a multilayer film in which a cellulose layer / cellophane is present against the PLA layer, it is prevented that continuous holes are formed with the laser. The cellulose layer has a different temperature sensitivity than the PLA layer. Because the melting point of the cellulose layer is higher than that of the PLA layer, the cellulose layer prevents laser holes in the multi-layer film from forming attenuations in the PLA layer. Cellulose also has the advantage that it has a good oxygen / gas barrier.
A favorable embodiment of the container according to the invention is characterized in that the weakenings with the thickenings and / or reinforcements around it have the shape of a crater, the material removed in the middle wholly or partly forming a raised edge around the weakened part.
As a result, no additional material is required to form the bulges and / or reinforcements.
A preferred embodiment of the container according to the invention is characterized in that the craters and thickenings and / or reinforcements are formed with the aid of a CO2 laser. A CO2 laser has been found to be eminently suitable for forming the craters and bulges / reinforcements. CC> 2 lasers emit infrared light with a wavelength between 9600 and 10640 nanometers. By adjusting the CCVlaser in the correct manner, the aforementioned craters can therefore be formed in the foil with the thickenings / reinforcements. If desired, the film can be heated prior to the laser process so that the craters and thickenings / reinforcements can be applied and formed more easily.
The recesses formed by the laser preferably have a conical shape with a rounded top. This can be in the form of a circle (where the conical shape is a cone with a rounded top), but can also be an oval or elongated shape. At the top of the top the foil is thinnest and most weakened. As a result of the burn-in, the film melts and the molten material flows to the area immediately around the burn-in and there forms a raised edge around the burn-in. Part of the heated film material may have evaporated on heating.
An embodiment of the container according to the invention is characterized in that the attenuations are present on at least one side of the film and the film is attached to the filter material with the side provided with attenuation.
A further embodiment of the holder according to the invention is characterized in that the distance between the weakenings is between 0.2 and 2 mm. During use of the holder in a device intended for extracting the product present in the holder, the foil is stretched most at the location of the side walls of the protrusions of the wafer structure on the plate provided with outlets against which the holder is pressed. By ensuring that the distance between the weakenings is not too great, a part of the film provided with a weakening will be present at the location of all or at least most of these side walls. Because the film is stretched here the most, the weakenings will break open here first, which is favorable for obtaining a good / optimum extraction process. It has been experimentally determined that the optimum distance between the weakening lies between 0.4 and 0.8 mm. At smaller distances, the film receives too much heat to process during the laser, causing it to deform. At longer distances, the lead time of the water and the amount of coffee in the extract will vary more and you will get coffee of a less consistent quality, and froth formation.
Yet another embodiment of the container according to the invention is characterized in that the largest dimension of the bottom of the weakening is between 2 and 80 micrometers. Preferably, the largest dimension of the bottom of the attenuations is between 10 and 50 microns. These dimensions are also optimal for obtaining a good / optimal extraction process.
In order to speed up the process of preparing a beverage (coffee, tea, etc.), a further embodiment of the container according to the invention is characterized in that the film is provided with at least one, through the full thickness, in addition to the weakenings. the foil extending hole or slot. The hot water / extract makes the film soak faster because it also comes into contact with the other side of the film through the hole. The filtering material (possibly composed of several layers) stops the product to be extracted and thereby partially slips shut. This is not a problem due to the presence of the hole because the preparation process has already started and the damage has been sufficiently opened to allow sufficient liquid / extract to pass through. Preferably, said hole or slot is present in the center of the film. The opening formed by said hole is preferably larger than the openings formed in the film (at least if there are any) in the film. It is also possible to only provide the filter material sheet with openings / holes.
The film is preferably made of biodegradable compostable material. Furthermore, the filter material sheet is also preferably made of biodegradable compostable material.
The material of the cup is, for example, aluminum or plastic or of a biodegradable / compostable biopolyester material.
The holder can be a pad formed from two sturdy walls that are attached to each other along the circumference, at least one of the walls forming the said wall part. These two walls are preferably sealed together. The walls are preferably not provided with weakenings at the location of the seal in order to prevent the weakening from melting open and holes appearing during sealing, as a result of which liquid tightness and / or air tightness is no longer present.
The holder can also be in the form of a cylinder or a truncated cone with a circumferential side wall and two end walls, at least one of the end walls comprising said wall part.
In this case, the remaining walls of the container can each also comprise a layer of filtering material. In this case, the holder must first be placed in an auxiliary holder provided with a sturdy side wall and flange projecting radially towards the outside to prevent fluid from flowing easily via the porous side wall along the outside of the holder to the outlet holes, as a result of which insufficient pressure build-up to obtain a good extract.
In this embodiment, a plastic foil with local weakenings is preferably also attached to the other end wall. As a result, it does not matter with which end wall forward the holder is placed in the auxiliary holder and the holder can therefore not be placed in the wrong position in the auxiliary holder. One of the weakened films will then be the first to come into contact with hot water from the outside, so that it becomes soaked and subsequently permeates or tears water at the site of the weakening. In situations where the foil does not allow water to flow through at the inflow side, the water will pass through the foil. This has no influence on the extraction because on the inflow side the compression of the content (coffee / tea) is not as strong as on the outflow side. Subsequently, pressure is built up in the container and the other foil is pressed against the wafer structure as has already been described above. The one film layer then acts as a pressure film and will exert a uniform pressure force.
The remaining walls can also be of water that is impermeable and form a cup open at one end, the edge of the side wall bounding at the open end being provided with a flange protruding in a radial direction, on which the sheet of filter material having the Local weakened foil is attached and the open end is closed. The side wall and this end wall are preferably self-supporting. In this embodiment too, the foil is preferably sealed to the flange, the walls preferably not being provided with weakenings at the location of the seal. Again to prevent the weakening of the weakening and the formation of holes during sealing, as a result of which liquid tightness and / or air tightness is no longer present.
The side wall and end wall of the holder are preferably made of oxygen-impermeable material and the sheet of filter material with the film provided with local weakenings thereon is provided with an oxygen-impermeable barrier layer. This barrier layer may be present on the filter material sheet or on the film or between the filter material sheet and the film and may be a separate sheet or formed by a coating, for example polyvinyl alcohol, SiOx (Silicon oxide), or ORMOCER®, the latter being a inorganic-organic hybrid polymer (brand name of the Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eV München). This barrier layer can also be a metallized biodegradable compostable film or a wafer-thin biodegradable compostable film with barrier properties. Due to this barrier layer, the shelf life increases and this cup does not have to be packed in an oxygen-impermeable package. The container can be made of a biodegradable compostable material, the side wall and end wall being provided with an oxygen-impermeable layer or coating, for example polyvinyl alcohol. Optionally, the container is an injection molded product or thermoform product and the container is metallized on the inside and / or outside (e.g. vapor deposition) with a thin layer of metal (e.g. aluminum) and finished with an oxygen impermeable layer (e.g. polyvinyl alcohol) or a biologically colored varnish layer. In addition to an oxygen barrier, this also has an attractive and recognizable appearance that allows the user to see that he is taking the right capsule.
The barrier layer is preferably formed by a separate sheet which is applied to the film and the filter material sheet and which can be removed before use. For this purpose, the sheet of barrier material is preferably formed by a fully or partially removable or detachable (tear-off) sticker sheet which is applied to the filter material sheet with the film provided with local weakenings on it. The individual sheet can optionally also be tightly sealed over the flange of the cup ultrasonically or with the aid of heat. The sticker sheet is preferably square or provided with one or more lips. A large sticker sheet protruding outside the flange is also possible. Due to the lip (s) or protruding parts, the user cannot get the cup into the coffee machine and is therefore forced to pull the sticker sheet loose, so that it is prevented from remaining on the cup unintentionally during brewing. The barrier layer is again preferably made of biodegradable compostable material and can be printed with explanations for the user. If the container is provided with openings on an end wall, here the bottom, it is of course advisable to also provide this side with an oxygen barrier, for example through a releasable sheet provided with a lip. In an even more user-friendly embodiment, the detachable sheets are connected to each other, so that the user pulls the two detachable barrier sheets in a hand movement.
The invention also relates to an assembly of two containers according to the invention. With regard to this assembly, the invention is characterized in that the two cups with the flanges are releasably connected to each other and airtightly connected to each other. The flanges may, for example, be fused together over the outer circumference. The cups attached to each other can easily be broken apart manually, with the fault line along the outer circumference of the flanges where the cups were attached to each other.
The invention furthermore relates to a method for manufacturing a container comprising: manufacturing a pouch open at an end side from filtering material or a cup open at an end side of a rigid material, which pouch or cup is provided with a side wall and an end wall, and which cup on a side wall bounding the open end side is provided with a flange projecting radially outwards, subsequently filling the pouch or cup with a product to be extracted, in particular ground coffee beans or sliced tea leaves , manufacturing a film of liquid impermeable material, and weakening the film by laser-making recesses in the film, and then closing the open end side with the film provided with weakening, the film being on the parts of the filtering material or of the cup present around the open end side.
With regard to the method, the invention is characterized in that when applying the weakenings in the film, the film is thickened and / or reinforced around each recess.
For embodiments of the method, reference is made to the appended claims.
Brief description of the drawings
The invention will be explained in more detail below with reference to exemplary embodiments of the holder according to the invention shown in the drawings. Hereby shows:
Figure 1 shows a first embodiment of the holder according to the invention together with an auxiliary holder in section;
Figure 2 shows a cross section of the filter material sheet with the film provided with local weakening;
Figure 3 shows a second embodiment of the holder according to the invention in section;
Figure 4 is a perspective view of a third embodiment of the holder according to the invention;
Figure 5 shows a cross-section of the sheet of filtering material provided with an oxygen-impermeable barrier layer with the film provided with local weakenings thereon;
Figure 6 shows the embodiment shown in Figure 1 during use in a suitable device;
Figure 7 shows a waffle-iron-shaped outlet plate of a known apparatus for extracting the product present in the container;
Figure 8 is a sectional view of the outflow plate shown in Figure 7 with above it a film of the holder according to the invention provided with weakening;
Figure 9 shows the outflow plate and foil shown in Figure 8 during use;
Figure 10 shows a part of the foil of the container, shown in a highly enlarged top plan view;
Figure 11 is a sectional view of the foil shown in Figure 10; and
Figure 12 is a sectional view of a fourth embodiment of the holder according to the invention.
Detailed description of the drawings
Figure 1 shows a first embodiment of the holder 1 according to the invention together with an auxiliary holder 3 in section. The container 1 with ground coffee 5 therein is provided with a side wall 7 and two end walls 9 and 11 which are all formed from a sheet of filtering material. The sheet of filtering material can be both woven and non-woven. Non-woven or non-woven is a category of textile materials that is neither woven nor knitted. Unlike the traditional manufacture of a textile fabric, no yarn is therefore used, but the material is deposited directly as a fiber or filament in a fleece and then adhered to each other.
A hard plastic film 13 and 15 made of biodegradable material is sealed on both end walls. This foil is provided with a relatively large number of local weakenings. These weakenings are formed with the help of a CO2 laser.
The films 13 and 15 are sealed on the sheets 9 and 11 with filtering side. Before this holder can be used in an apparatus suitable for cooperating with cups, the holder must first be placed in the auxiliary holder 3. This auxiliary holder is provided with a sturdy side wall 17, to prevent liquid from flowing easily via the porous side wall along the outside of the holder to outlet holes in the device. In the embodiment shown, the side wall 17 has a tapered shape. However, the side wall can also have a cylindrical or substantially cylindrical shape. For example between 2 and 6 degrees but preferably 4 degrees This is found to be even better in practice because the chance that liquid flows via the porous side wall along the outside of the container to outlet holes in the device is smaller than in the case of a clear tapered side wall. The auxiliary holder is open at both ends, however, the bottom has an end edge so that pushing of the pouch is not possible, it is also possible to press the pouch through this end edge better, and is provided with an outwardly projecting flange 19 at the end with the largest diameter. Figure 2 shows the sheet of filtering material with the film provided with local weakenings in cross section for illustration purposes. The sheet of filtering material 13A is integral with the side wall 7 and the film 13B provided with local weakenings is glued to the sheet of filtering material 13A. The film 13B is, in addition to the weakening elements 14, provided with a hole 16 extending through the entire thickness of the film, which hole is preferably present in the center of the film. The opening 16B formed by the hole is larger than the openings 14B in the film formed by the weakening. It can also happen that through the weakenings no through openings have been formed in the foil. For example if one wants to form the oxygen barrier by means of a lacquer layer or coating. In this situation in particular, the hole 16 proves its usefulness to get the preparation process going more quickly.
Figure 3 shows a second embodiment of the holder according to the invention in cross section. This holder 21 has a tapered or substantially cylindrical side wall 23 and an end wall 25 which forms a bottom (possibly with openings) which are both of a sturdy material and form a cup open at an end side. The edge of the side wall bounding the open end side is provided with a flange 26 projecting outwards in a radial direction. On this flange a sheet of filtering material 27 is sealed with a hard plastic film 29 provided with weakenings, such that this sheet closes off the open end side . The ground coffee 5 present in the holder 21 is present in the compressed state to prevent the water / extract from forming channels through the ground coffee and exiting through these channels and not through the entire amount of ground coffee. Here too it holds that instead of the tapered shape shown, the side wall 23 can also have a cylindrical or substantially cylindrical shape, which can lead to better results.
Figure 4 shows a third embodiment of the holder according to the invention in perspective. With this holder 41, the side wall 43 and end wall 45 are made of oxygen-impermeable material. The sheet of filtering material with the film 49 provided with local weakenings on it is mounted on the flange 47 of the holder. The oxygen impermeable barrier layer is formed by a removable sticker sheet 51 which is applied to the filter material sheet with the film 49 provided with local weakenings (in the figure the sticker sheet is shown separately from the rest of the holder). The sticker sheet 51 is provided with one or more lips 53, in this embodiment four lips. This allows the sticker sheet to be easily grasped and pulled off. Moreover, as a result, the user cannot leave the sticker sheet unintentionally during use because he cannot get the cup provided with the sticker sheet into the coffee machine and is thus forced to pull the sticker sheet loose. The sticker sheet 51 can of course also be applied to the flange 47 by a heat seal or ultrasonically. The holder 41 can also be made of a biodegradable compostable material and preferably be provided with an oxygen-impermeable coating layer on the outside of the side wall and end wall 45.
Figure 5 shows, by way of illustration, the sheet of filtering material provided with a barrier layer with the film provided with local weakenings in cross section. The foil 49B provided with local weakenings is glued to the filter material sheet 49A and the sticker sheet 51 is again detachably adhered thereto.
Figure 6 shows the holder 1 shown in Figure 1 during use in a suitable device 31. During the preparation of coffee, a high-pressure liquid is injected into the cup, indicated by arrow A. Due to the liquid pressure in the auxiliary holder 3, the end wall 13 is partly pressed through the wafer structure of the outlet plate 33 (indicated by broken lines), tears open a number of places. A number of the partially torn parts of the end face compresses a number of outlet holes 35 in the wall, so that ultimately a limited through-flow opening remains. As a result, the pressure built up in the auxiliary holder 3 remains in place during the extraction and foam is formed.
By way of illustration, in Fig. 7, the waffle-iron-shaped outlet plate 33 of a known apparatus for extracting the product present in the container is shown in top view. The outflow plate 33 is provided with protrusions 37, wherein the outflow openings 35 are present between the protrusions. The height of the projections 37 is 1.2 mm and the distance between the outflow openings 35 is 4 mm.
In figure 8 the outflow plate 33 is shown in cross section with above it a film 61 provided with weakenings of a further embodiment of the holder according to the invention. The lines 63 are the center lines of the weakenings present in the foil. These weakenings do not form continuous holes. During use of the holder in the apparatus, the foil will form around the protrusions 37, see figure 9. The distance between the weakenings in this embodiment is 0.6 mm. At the location of the side walls 39 of the projections 37, the film is stretched the most. Due to the chosen distance between the weakenings, a part of the film provided with a weakening will always be present at the location of these side walls or at least at most side walls. Because the film is stretched here the most, the weakenings will break open here first, which is favorable for obtaining a good / optimum extraction process.
In Figs. 10 and 11, a part of the foil 61 of the holder is shown in a highly enlarged way, in cross-sectional view, respectively. Attenuations 65 in this embodiment are burnings formed with the aid of a CO 2 laser. The choice of the type of laser also depends on the material and color of the film. By adjusting the power and duration of the pulses, an optimum shape of the attenuations 65 can be obtained. The recesses 67 formed by the laser preferably have a conical shape with a rounded top. The bottom 69 of the weakening is situated at this top and the film is thinnest and most weakened. Due to the heat of the laser, the film melts and the molten material flows to the area immediately around the burn-in and forms a raised edge 71 there around the burn-in. This edge forms a reinforcement of the foil that prevents the foil from tearing further after breaking the bottom of the weakenings and thus forms a large opening for an optimum extraction process.
The size of the bottom 69 of the attenuations in this embodiment is approximately 30 micrometers. This size is optimal for obtaining a good extraction process. The thickness of the foil 61 is approximately 40 micrometers. On the other side of the film, the film is slightly convex at the location of the bottom, so that the bottom can stretch more during stretching of the film in the apparatus before the bottom breaks or cracks. This boiling forms an irregularity on the foil.
Figure 12 shows a cross-section of a fourth embodiment of the holder according to the invention. This holder 81 is designed as a pad formed from two walls 83 which are attached to each other along the circumference. The space between the walls is filled with a product 85 to be extracted. Each wall is composed of two layers, the outer layers 87 of which are formed by the weakened plastic film and the inner layers 89 are formed by sheets of filter material attached to the film. .
Although in the foregoing the invention has been elucidated with reference to the drawings, it should be noted that the invention is by no means limited to the embodiments shown in the drawings. The invention also extends to all embodiments deviating from the embodiments shown in the drawings within the scope defined by the claims. Instead of the round weakenings shown here, weakenings in the form of elongated grooves can also be provided with the aid of the laser.

权利要求:
Claims (30)
[1]
A container containing a product to be extracted, in particular ground coffee beans or sliced tea leaves, which container is provided with a number of walls of which at least one wall part comprises a foil of liquid impermeable material, which foil is provided with a plurality of local weakenings in the shape of recesses formed by a laser provided with a bottom, characterized in that a thickening and / or reinforcement of the foil is present around each weakening.
[2]
2. Container as claimed in claim 1, characterized in that said wall part consists of several layers, one layer of which is formed by said foil and a further layer is formed by a sheet of filter material on which said foil is attached.
[3]
3. Container as claimed in claim 1, characterized in that the filter material sheet is provided with at least one through-opening.
[4]
Holder as claimed in claim 1, 2 or 3, characterized in that the foil comprises a PLA layer.
[5]
Container according to claim 1, 2, 3 or 4, characterized in that the film consists of several layers with different temperature sensitivities.
[6]
Container according to claim 5, wherein it refers to claim 4, characterized in that the foil comprises a cellulose layer present thereon in addition to the PLA layer.
[7]
7. Holder as claimed in claim 4 or 6, characterized in that the PLA layer has a softening point of 90 or approximately 90 degrees.
[8]
8. Container as claimed in any of the foregoing claims, characterized in that the weakenings with the thickenings and / or reinforcements around it have the shape of a crater, the material removed in the middle wholly or partly forming a raised edge around the weakened part.
[9]
9. Container as claimed in any of the foregoing claims, characterized in that the craters and thickenings and / or reinforcements are formed with the aid of a CO2 laser.
[10]
10. Holder as claimed in any of the foregoing claims, characterized in that the recesses are present in at least one side of the film and the film is fixed on the sheet of filtering material with the side provided with the recesses.
[11]
11. Holder as claimed in any of the foregoing claims, characterized in that the distance between the weakenings is between 0.2 and 2 mm.
[12]
A holder according to claim 11, characterized in that the distance between the weakening is between 0.4 and 0.8 mm.
[13]
A container according to any one of the preceding claims, characterized in that the largest dimension of the bottom of the weakening is between 2 and 80 micrometres.
[14]
A container according to claim 13, characterized in that the largest dimension of the bottom of the weakening is between 10 and 50 microns.
[15]
15. Holder as claimed in any of the foregoing claims, characterized in that the film is provided with at least one hole extending through the full thickness of the film in addition to the weakenings.
[16]
A container according to any one of the preceding claims, characterized in that the foil and / or the sheet of filtering material and / or the cup is made of biodegradable compostable material.
[17]
17. Holder as claimed in any of the foregoing claims, characterized in that the holder comprises two walls which are attached to each other along the circumference.
[18]
A holder according to any one of the preceding claims 1 to 16, characterized in that the holder is in the form of a cylinder or a truncated cone with a circumferential side wall and two end walls, at least one of the end walls comprising said wall part .
[19]
19. Container as claimed in claim 18, characterized in that the remaining walls of the container each also comprise a layer of filtering material and the container forms a refill for a cup open at an end side with a bottom and a circumferential side wall.
[20]
20. Container as claimed in claim 19, characterized in that also on the other end wall a plastic foil provided with local weakenings is attached.
[21]
21. Container as claimed in claim 18, characterized in that the other walls are of stiff water impermeable material and form a cup open at one end side, wherein at the open end side bounding edge of the side wall is provided with a protruding outward radially flange on which the sheet of filtering material with the film provided with local weakenings is attached and closes the open end side.
[22]
A container according to claim 21, characterized in that the side wall and end wall of the cup are of oxygen impermeable (material) and the sheet of filtering material with the film provided with local weakenings thereon is provided with an oxygen impermeable barrier layer.
[23]
A container according to claim 22, characterized in that the oxygen impermeable barrier layer is formed by a removable sticker sheet which is applied to the filter material sheet with the film provided with local weakenings on it.
[24]
24. Holder as claimed in claim 23, characterized in that a further removable sticker sheet is arranged on the end wall of the cup.
[25]
A holder according to claim 23 or 24, characterized in that the two sticker sheets are connected to each other.
[26]
An assembly of two holders according to claim 21, 22, 23, 24 or 25, characterized in that the two cups are detachably connected to each other with the flanges and are connected to each other in an airtight manner.
[27]
A method for manufacturing a container according to any one of the preceding claims, comprising: manufacturing a pouch open at an end side from filtering material or a cup open at an end side from a rigid material, which pouch or cup is provided with a side wall and an end wall, and which cup is provided on an edge of the side wall bounding the open end side with a flange projecting outwards in radial direction, subsequently filling the pouch or cup with a product to be extracted, in particular ground coffee beans or cut tea leaves, the manufacture of a film of liquid impermeable material, and the weakening of the film by making recesses in the film with a Co2 laser, and then closing the open end side with the film provided with weakening, the foil is attached to the parts of the filtering material or of the cup present around the open end side, characterized in that, upon application, incorporating the weakenings in the film the film is thickened and / or reinforced around each recess.
[28]
A method according to claim 27, characterized in that the recesses are made with the aid of a CC> 2 laser such that the thickenings and / or reinforcements thereby take the form of a crater, with the material removed in the middle entirely or partially a raised edge is formed around the weakened portion.
[29]
A method according to claim 27 or 28, characterized in that after the film has been weakened, a sheet of filtering material is attached to the film and then the multilayer structure with the side formed by the sheet of filtering material on the parts of around the open end side the filter material or cup is attached.
[30]
A method according to claim 27 or 28, characterized in that, in the case the holder is a pouch, the open end side of the pouch is first closed with a sheet of filtering material by folding protruding parts of the side wall over the open side and then the foil to be attached to the filter material sheet.

类似技术:

公开号 | 公开日 | 专利标题

NL2014628B1|2017-12-22|Container containing a product to be extracted, as well as a method for manufacturing the container.

US8906435B2|2014-12-09|System, method and capsule for preparing a beverage

JP3150200B2|2001-03-26|Closed hard cartridge package and method of making same

JP5800714B2|2015-10-28|Capsule with flow conditioning and filtering member

CA2765456C|2017-01-24|Capsule and system for preparing a beverage comprising soluble substance

EP3144135A1|2017-03-22|Multilayered material and containers and method of making same

US10252853B2|2019-04-09|Capsule for the preparation of beverages

NL2018586B1|2018-10-05|Holder with a product to be extracted

JP6839721B2|2021-03-10|Closed capsule with opening means and integrated barrier layer

NL2016511B1|2017-10-17|Container containing a product to be extracted, as well as a method for manufacturing the container.

WO2013167940A1|2013-11-14|Capsule

NL2016510B1|2017-05-09|Holder with a product to be extracted.

KR20200038474A|2020-04-13|Capsules and systems for making beverages

NL2016578B1|2017-08-02|Holder with a product to be extracted.

EP3687924B1|2021-12-22|Method for producing a cup for a capsule for infused or soluble beverages, and related cup and capsule

KR102321312B1|2021-11-04|beverage preparation capsules

同族专利:

公开号 | 公开日

EP3042860B1|2018-02-28|

WO2016111626A1|2016-07-14|

US20180273287A1|2018-09-27|

NL2014628B1|2017-12-22|

EP3042860A1|2016-07-13|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US20090176034A1|2006-02-23|2009-07-09|Picodeon Ltd. Oy|Surface Treatment Technique and Surface Treatment Apparatus Associated With Ablation Technology|

EP2230925A2|2007-12-18|2010-09-29|Diolaiti, Erminio|Product tablet and related pack|

ES2467693T3|2009-04-09|2014-06-12|Nestec S.A.|Capsule for the preparation of a beverage with a delamination seal or that can be broken on the distribution wall|

EP2239212B1|2009-04-09|2015-11-11|Nestec S.A.|Capsule for preparation of a beverage with a delivery wall forming a confined flowpath|

ES2622298T3|2009-06-17|2017-07-06|Koninklijke Douwe Egberts B.V.|System, capsule and procedure for the preparation of a predetermined amount of beverage|

US8895090B2|2010-09-22|2014-11-25|K-Fee System Gmbh|Portion capsule and method for producing the same|

US8872011B2|2011-02-25|2014-10-28|Mark Fresolone|Visual, tactile and motion-sensation system for representing music for an audience|

DE102012200187A1|2012-01-09|2013-07-11|Henkel Ag & Co. Kgaa|Bottle with shrunk plastic film|

JP2015530882A|2012-06-22|2015-10-29|タッチコーヒー＆ビバレッジズ，エルエルシー．|Beverage brewing system|

US10421603B2|2014-03-12|2019-09-24|Sarong Societa' Per Azioni|Capsule for beverages|

WO2015158838A1|2014-04-17|2015-10-22|K-Fee System Gmbh|Single-serve capsule and method for preparing a beverage using a single-serve capsule|

ES2859908T3|2014-05-23|2021-10-04|Advanced Tech Assets B V|Capsule and device for preparing drinks and method of making a capsule|

US20160332805A1|2015-05-14|2016-11-17|Calvin S. Krupa|Single serve brewing package|IT201600095975A1|2016-09-23|2018-03-23|Caffitaly System Spa|CAPSULE FOR THE PREPARATION OF DRINKS|

NL2018586B1|2017-03-27|2018-10-05|Stas I P B V|Holder with a product to be extracted|

WO2019198021A1|2018-04-12|2019-10-17|Sarong Societa' Per Azioni|Package|

IT201800004437A1|2018-04-12|2019-10-12|Beverage packaging.|

EP3907158A4|2020-05-08|2021-11-10|Tchibo Gmbh|Cartridge and method for producing a cartridge|

法律状态:
2018-12-05| MM| Lapsed because of non-payment of the annual fee|Effective date: 20180501 |

优先权:

申请号 | 申请日 | 专利标题

NL2014098|2015-01-08|

[返回顶部]