• 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:
    1508545 Coating webs with thermoplastic KUFNER TEXTILWERKE KG 12 July 1976 [23 July 1975 19 Aug 1975] 28832/76 Heading D1L The patterned application of thermoplastic adhesive to textile webs by use of a roll 1 having recesses 2 in its surface into which the adhesive is supplied from a hopper 10 [see Specification 1385783] is modified in that a second hopper 11 is provided to produce a double-layered coating with superposed coating patterns, the second hopper 11 discharging the adhesive powder 28 directly onto powder 27 contained in the recesses 2. The second layer of thermoplastic 28 may have a higher or lower melting pt. or viscosity. The hoppers, which may be separate [Fig. 1] or combined [Fig. 2 (not shown)], are provided with doctor blades 15, 16, 20 and 21 at the lower edges thereof. Blade 16 subtends an angle of 0-60‹ with surface of roll 1 [i.e. angle α is 120-180‹]. Blade 21 subtends an angle # of 20-85‹ with the roll surface. As shown in Fig. 1 the blade lies parallel therewith and has a bevelled leading edge. Other blades are illustrated in Figs. 3, 4 and 5 (not shown). Rolls 4 and 5 are heated and outer walls 17, 19 of the hoppers are water-cooled. Suction manifolds 24, 25 are provided downstream of the hoppers. The thermoplastic may be applied to an intermediate silicon release paper.
    公开号:SU831055A3
    申请号:SU752303952
    申请日:1975-12-24
    公开日:1981-05-15
    发明作者:Хефеле Иозеф
    申请人:Куфнер Текстильверке Кг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a coating technique.
    There is a method of applying powdered glue to a tape material by feeding the powder into the recesses 5 located on the surface of the drum and transferring it onto the tape material [11, A device for implementing this method contains guide rolls for tape material, a drum with its surface is deepened and squeezed with a means of supplying powder to the recesses of the drum [2]. The disadvantage of the data of the method and device for its implementation is the impossibility of applying two coatings.
    The purpose of the invention is to obtain a two-layer coating.
    The goal is achieved due to the fact that a second layer of powder glue is applied to the powder adhesive located in the recesses of the drum.
    Moreover, powder glue is placed in the recesses of the drum, the melt viscosity of which is less than the melt viscosity of the second layer of powder glue applied to it.
    A second layer of powder glue is applied to part of the recesses filled with powder glue.
    Both layers of powdered glue are transferred onto silicone paper in contact with the drum.
    In addition, the device is equipped with an additional doctor blade installed behind the main squeegee in the direction of rotation of the drum with a powder supply means, the angle of inclination of the working edge of which to the surface of the drum from the powder supply side is less than the corresponding angle of inclination of the main doctor.
    The angle of inclination of the working edge of the main doctor to the surface of the drum is 120-180 °, and the corresponding angle of inclination of the working edge of the additional doctor is 20-85 °.
    The additional squeegee faces the working edge towards the movement of the drum, which is bent in the direction of movement of the drum.
    In this case, the working edge of the additional squeegee is made with a thickening.
    At least one squeegee is pressed by the working edge to the surface of the drum with an effort to ensure its bending.
    Means for. powder feeds are made in the form of containers mounted above the drum with exit slots, each of which is formed by a doctor blade and a blade fixed to the wall of the container.
    At least one of the tanks is equipped with a water cooling device. ''
    In addition, the device is equipped with an air suction pipe / located at least one squeegee in the direction of rotation of the drum.
    Moreover, the air suction pipe is installed with the possibility of movement in a direction parallel to the axis of the drum.
    The recesses on the surface of the drum are made in the form of intersecting grooves.
    In FIG. 1 shows a device, a general view, a first embodiment; in FIG. 2 — device, second embodiment (general view on a reduced scale); in FIG. 3 - main squeegee, section (for the first and second variants of the device); Fig. 4 additional squeegee (for the first and second variants of the device); in FIG. 5 - additional squeegee, another embodiment; in FIG. b part of the surface of the drum with recesses (for the first version of the device); in FIG. 7 - part of the surface of the drum with recesses in the form of intersecting grooves; in FIG. 8 and 9 are other embodiments of the device ’(general view on a reduced scale). ''
    The device comprises a drum 1, rotating in the direction of arrow A. On the surface of the drum, cup-shaped recesses 2 are made (Fig. 6), and on both sides of the drum there are guide rolls 3 and 4 for tape material, rotating in the direction of arrows B and C. At least one roll 3 is heated. .Over the drum, two powder containers 5 and 6 are arranged one after the other. The side walls 7 and 8 located parallel to the axis of the drum, in the first direction in the direction of rotation of the drum of the powder container 5 carry a squeegee 9 and a blade 10 at their lower ends, forming a gap for the passage of powder between them. The blade 10 is located at a small distance from the surface of the drum or slightly touches it, and the squeegee -9 is pressed with its working edge to the surface of the drum with a force that ensures its bending. The working scraping edge of the squeegee is pointed. The angle o! _ Of the inclination of the working edge of the doctor blade 9 to the surface of the drum is about 140 °. This angle may also be different, but must lie between 120 and 180 °.
    Since the roll 4, as a rule, must also be heated, the wall 7 of the tank 5 facing it is equipped with a water cooling device 11. The tank 6 at the lower ends of the side walls 12 And 13, parallel to the axis of the drum 1, has a squeegee 14 and a blade 15, forming a gap for the passage of powder. The blade 15 is located at a small distance from the surface of the drum 1 or weakly touches it, and the squeegee 14 is pressed against the surface of the drum with an effort to ensure its slight bend. The rake 14 with its lower wide side lies tangentially or almost tangentially to the surface of the drum. The working edge of the squeegee 14 forms an angle with the surface of the drum, which lies between 20 and 85, preferably between 30 and 60 °. The side wall 13 of the container 6 facing the roll 3 is provided with a water cooling device 16. It is advisable to make both rakers 9 and 14 from a steel sheet. Behind each container 5 and b, air suction nozzles 17 and 18 are installed, located at some distance from the drum 1 along its axis. The nozzles are movable in a direction parallel to the axis of the drum.
    The device operates as follows.
    When the drum 1 and the rolls 3 and 4 rotate in the direction of the arrows A, B, C, the glue powder in the containers 5 and b with the same or different physical and chemical properties through the slots formed by the squeegees 9 and 14 and the blades 10 and 15, the surface of the drum 1, which between the recesses 2 is cleaned of powder by means of a squeegee 9. After filling with a powder, the recesses after the squeegee 9 fall under the outlet slit of the container 6, where, using the squeegee 14, a second layer of powder is applied to the powder glue located in the recesses 2, after passed On the working edge of the squeegee 14, this layer may protrude above the surface of the drum. With further rotation of the drum, the powder layers are pressed against the tape 19 to ensure that they are glued to the tape. When the tape leaves the drum 1, the layers of powder are removed from the recesses 2 of the drum.
    If it is necessary to apply a two-layer coating in one or several zones along the width of the tape, and in other zones of a single-layer coating, the container b can be separated by plug-in partitions so that only those places are filled with powder. lie under the zones of the tape, which require a two-layer coating. In FIG. 2 shows a container divided by a partition 8a. into two chambers 5a and 6a for two different adhesive powders.
    A squeegee 9 is fixed on the lower part of the partition 8a, and a blade 10 and squeegee 14 are fixed on the walls. In this case, there is no need for a suction pipe installed between containers 5 and 6. In both versions of the device, the sharp edge of the squeegee 9 is pressed against the drum 1 s more or less strong bending (in Fig. 3 shows a strongly curved squeegee).
    Various embodiments of the doctor 14 are shown in FIG. 4 and 5. In this case, the rake 14 costs approximately. _ perpendicular to the surface of the drum and has a working edge bent in the direction of rotation of the drum. This edge may have a thickening 20 made of metal or plastic. Bending or thickening of the working edge 20 of the squeegee leads to an increase in the amount of glue powder scraped off by this squeegee. At the point of contact of the working edge of the squeegee against the surface of the drum, an angle β equal to 25 60-85 ° is formed.
    In the embodiment of the device shown in FIG. 7, in front of the roll 3 there is another roll 21 for the tape 19. As in the embodiment (Fig. 1), layers of powder ^ 0 lie on the upper side of the tape to be removed. In the embodiment shown in FIG. 8, layers of powder are on the underside of the tape. The tape is fed to the drum 1 through a feed roll 22 and a drive roll 23; it only in a small area comes into contact with the drum 1 and is discharged, then using a roll 24.
    Example 1. Apply layers of glue powder having different melting points.
    Technical data: drum with point recesses. The main squeegee is made of steel sanding sheet with a thickness of 0.3 mm, the angle of inclination 45 of the working edge of the squeegee to the surface of the drum at the point of contact is 135, the squeegee is pressed against the drum with a force that ensures its bending. The additional squeegee is made of 5Q steel sheet 0.3 mm thick, the squeegee working edge is beveled at 45 ° and is tangential to the drum.
    Material of the first container: optically clarified copolyamide powder with a plasticizer, having a particle size of 60-250 microns, and containing 0.25% magneeium stearate, mp 60 ° C. Viscosity, Пзпр 70 ° С - 35000, 80 ° С 9000, 90 ° С - 3.500. 60
    Material of the second capacity: copolyamide powder without plasticizer, particle size 60-200 microns with a content of 0.15% magneeium stearate, without optical clarification, so pl. 92.5 S. 65
    Viscosity, Пд at 95 ° С - 56000, 1.00 ° С28000, 110 ° С - 9000, 120 ° С - 4200. ' Temperature, ° C: drum - З3, roll 3 - 220, roll 4 with a single-layer coating of 80, with a two-layer coating - 120, belt speed of about 10 m / min, coating weight · one layer 2.0 g / m 2 ·, two-layer 28 g / m. Material with a two-layer coating is heated on the fur and skin when the glue points are heated to a temperature of about 75-90 ° С without peeling. When applying a two-layer coating (figure 4) received the following coating weights for the lower and upper layers, respectively, to the corners p of the installation of the doctor 14.
    »Th
    AngleA /, city. The lower layer, g / m 2 The top layer, g / m 2 Total weight, g / m 2 80 20 7 27 70 20 14 34 60 20 22 42
    The material can be manually fixed on textile clothing with a simple ironing. Bonding strength is the same as pressing by pressing.
    Example 2 An adhesive mesh of a silicone paper intermediate is layered with different melting points and different viscosities of both layers.
    Technical data: the drum has recesses in the form of intersecting grooves. The primary and secondary squeegees are made analogously to example 1.
    The first powder: so pl. 116 ° С, viscosity, П-з at temperature, ° C: 120140000, 130 - 42000, 140 - 18000.
    The second powder is identical: the first of example 1. Temperature, ° C; drum, 35, roll 3-220, roll 4–80.
    There is a slight infrared irradiation of the tape material after the layering process. The speed of the tape is 8 m / min, the total weight of the tape is about 30 g / m.
    Silicone paper is fed onto the drum between the guide roll and a tightly tensioned fabric also covering the guide roll. A ribbon-shaped adhesive mesh lying on silicone paper can be used for flanging the edges of clothing: with a short ironing, it is transferred to the flanging. After removing the silicone paper, the flanges laid and lightly pressed by hand grasp quite well with the transferred adhesive mesh. With final ironing, final gluing occurs.
    The proposed method of applying powdered glue to tape
    8, the material and the device for its implementation provide a two-layer coating on the tape material. At the same time, the device has high performance and reliable operation.
    权利要求:
    Claims (15)
    [1]
    Funds for Powder feeds are made in the form of vessels mounted above the drum with outlet slots, each of which is formed by a doctor blade attached to the vessel wall. At least one of the tanks is equipped with a water cooling device. In addition, the device is equipped with an air bleeding pipe / located at least one doctor blade in the direction of rotation of the drum. Moreover, the air bleed pipe is mounted for movement in a direction parallel to the axis of the drum. The grooves on the surface of the drum are made in the form of intersecting grooves. FIG. 1 shows a device, a general view, a first embodiment; in fig. 2 — device, second embodiment (general view in a moderate scale); in fig. 3 - bases for rakl, cut (for the first and second variants of the device); in fig. additional -rakl (for the first and second variants of the device); in fig. 5 - additional rakl, another variant; in fig. b part of the surface of the drum with recesses (for the first version of the device); (bg. 7 - part of the drum surface with depressions in the form of intersecting grooves; Fig. 8 and 9 - other versions of the device (general view on a reduced scale). The device contains drum 1 rotating along arrow A. On the surface of the drum Cup-shaped depressions 2 (Fig. 6) are made, and on both sides there are guide rollers 3 and 4 for the tape material rotating in the direction of the arrows Biv. At least one roll 3 is heated., Above the drum two containers 5 and 6 for powder. The side walls 7 and 8, parallel to the drum axis, of the first, in the rotation direction of the drum, are the powder containers 5 on their lower darts carrying the blade 9 and the blade 10, which form a slit for the passage of the powder between them.The blade 10 is located at a large distance from the drum surface or s-lightly touches it, and rakl-9 is pressed with its working edge to the surface of the drum with a force ensuring its bending. The working scraping edge of the doctor blade is sharpened. The angle oL of the working edge of the doctor blade 9 to the drum surface is about 140. This angle may also be different, but must lie between 120 and 180. Since roll 4, as a rule, must also be heated, the wall 7 facing it The containers 5 are provided with a water cooling device 11. The container 6 at the lower ends of the side walls 12 and 13, parallel to the axis of the drum 1, has a blade 14 and a blade 15, forming a slit for the passage of powder. The blade 15 is located at a short distance from the surface of the drum 1 or touches it weakly, and racle 14 is pressed against the surface of the drum with a force that ensures its slight bending. The raclus 14, with its lower wide side, lies tangentially or nearly Tangentially to the surface of the drum. The working edge of the doctor blade 14 forms an angle with the surface of the drum, which lies between 20 and 85, preferably between 30 and 60 °. The side wall 13 of the container, facing the roll 3, is equipped with a water cooling device 16. Both blades 9 and 14 should be made of steel sheet. For each tank 5 and 6, there are installed air-suction nozzles 17 and 18, located at a distance from the drum 1 along its axis. Nozzles are movable in a direction parallel to the axis of the drum. The device works as follows. During the rotation of drum 1 and rolls 3 and 4 in the direction of arrows A, B, C, powder of glue, which is located in containers 5 and 6, has the same or different physical and chemical properties through slots formed by races 9 and 14 and blades 10 and 15 gets onto the surface of the drum 1, which between the deepening of the hole 2 is cleaned from the powder by means of the doctor blade 9. The powder-filled grooves after the doctor blade 9 fall under the exit slot of the container 6, where with the aid of the doctor blade 14, the powder adhesive in the holes 2 t the second layer of powder, at the same time, after passing Neither the working edge of the doctor blade 14 this layer can protrude above the surface of the drum. As the drum rotates further, the powder layers are pressed against the belt 19 to adhere to the belt. When the tape has come off the drum 1, the powder layers are removed from the recesses 2 of the drum. If it is necessary to apply a two-layer coating in one or several zones across the width of the tape, and in other zones of a single-layer coating, container 6 can be separated by plug-in partitions so that only those places can be filled with powder. lie under tape zones requiring a two-layer coating. FIG. 2 shows a container divided by a partition 8a. two chambers 5a and 6a for two different adhesive powders. In the lower part of the partition 8a, rakl 9 is fixed, and on the walls, blade 10 and rakl 14. In this case, there is no need for an air suction nozzle installed between the capacitors 5 and 6. In both versions of the device, the sharp edge of the blade 9 is pressed to the drum 1 with a more or less severe bend (in Fig. 3, rakl is strongly curved). Various embodiments of the doctor blade 14 are shown in FIG. 4 and 5. In this case, rakl 14 stands approximately perpendicular to the surface of the drum and has a working edge bent in the direction of rotation of the drum. This edge may have a thickening 20 made of metal or plastic. Bending or thickening the working edge of the doctor blade leads to an increase in the amount of glue powder scraped off by this doctor blade. At the point of contact of the working edge of the doctor blade to the surface of the drum, an angle θ of 60-85 ° is formed. In the embodiment of the device shown in FIG. 7, another roller 21 for the belt 19 is located in front of the roller 3. As in the embodiment (Fig. 1), the layers of powder lie on the upper side of the stripping tape. In the embodiment shown in FIG. B, the powder layers are on the underside of the belt. The belt is fed to the drum 1 through the feed roller 22 and the drive roller 23; it is only in a small area comes in contact with the drum 1 and from. further with a roller 24. Example 1. Layers of blemish are glued with different melting points. Technical data: pinhole drum. The main roller is made of a steel grinding sheet 0.3 mm thick, the angle of inclination of the working edge of the doctor blade to the drum surface at the point of tangency is 135 °, pressed against the drum with an effort to bend it. Additional rakl made of steel sheet with a thickness of 0.3 mm, the working edge of the doctor blade is beveled at 45 and is adjacent to the drum on a tangent. The material of the first container: optically clarified copolyamide powder with a plasticizer, having a particle size of 60-250 microns, and containing 0.25% magnesium stearate, so pl. 60 ° С Viscosity, П3 at - 35000, 80 ° С 9000, 90 ° С -. The material of the second tank: copolyamide powder without plasticizer, particle size 60-200 microns with a content of 0.15% magnesium stearate, without optical clarification, so pl. 92.5 ° С viscosity, Пз at 95 ° С - 56000, 1.00 С8000, - 9000, - 4200. Temperature, С: drum - Jb, alka 3 - 220, roll 4 with single-layer coating 80, with two-layer poryti - 120, the speed of the lena is about 10 m / min, the weight of the single-layer coating is 2.0 g / m, the two-layer coating is 28 g / m. The material with a two-layer coating, when heated to glue dots to a temperature of about 75-90 ° C without peeling, is fixed on the fur and skin. When applying a two-layer coating (figure 4), the following weights of the coating for the lower and upper layers were obtained, respectively, at the corners of the blade set 14. The material can be fixed on textile clothing by hand with a simple ironing. The strength of s.kleyvani is the same as when pressing ironing. Example 2 A silicone mesh adhesive carrier layer is layered with different melting points and different viscosities of both layers. Technical data: the drum has recesses in the form of intersecting grooves. The main and additional doctor blades are made analogously to example 1. The first powder: mp. , viscosity, Pz at temperature, C: 120140000, 130 - 42000, 140 - 18000. The second powder is identical; the first of example 1. Temperature, C; drum 35, roll, roll 4-80. There is a slight infrared irradiation of the tape material after the layering process. Belt speed In m / min, the total weight of the belt is about 30 g / m. Silicone paper is applied to the drum between the guide roll and the tightly stretched cloth, which also covers the guide roll. A ribbon-shaped adhesive net lying on silicone paper can be used to flange the garment edges: it is transferred to a bargaining process by means of a short ironing. After removing the silicone paper. The folded and slightly pressed hand flanging seizes well enough with the transferred adhesive net. With final ironing, final bonding takes place. The proposed method of applying powdered glue to a tape material and a device for its implementation provide a two-layer coating on the tape material. At the same time, the device has high performance and is reliable in operation. The invention 1. A method for applying a powdery glue to a tape material by feeding the powder into the recesses located on the surface of the drum and transferring it to the tape material that differs in order to obtain a two-layer cover, to the powdery glue spread in recesses of the drum, applied a second layer of powdered glue.
    [2]
    2. Method according to Claim 1, characterized in that powdered glue is placed in the recesses of the ban bar, the melt viscosity of which is lower than the melt viscosity of the second layer of powdered glue applied to it.
    [3]
    3. Method according to Claim 1, characterized in that the second layer of powdered glue is applied on the part of the grooves filled with powder / glue.
    [4]
    4. A method according to claim 1, characterized in that both layers of powdered glue are transferred onto silicone paper that comes into contact with a reel.
    [5]
    5. A device for carrying out the method according to claims 1-4, comprising guide rollers for tape material, a drum with recesses made on its surface and a blade with means for feeding powder into the recesses of the drum, characterized in that it is provided with the main doctor blade in the direction of rotation of the drum with additional scoops with powder supply means, the slope of which working edge to the drum surface on the powder supply side is smaller than the corresponding angle of inclination of the main doctor blade.
    [6]
    6. The device according to claim 5, characterized by the fact that the angle of inclination of the working edge of the main blade to the drum surface is 120-180 °, and the corresponding angle of inclination of the working edge of the additional blade is 20-85 °.
    [7]
    7. The device according to claims 5 and 6, characterized by the fact that the additional wheel is turned by the working edge towards the movement of the drum.
    [8]
    8. A device according to claims 5-7, characterized in that the additional rakl is made with a working edge bent in the direction of the movement of the drum.
    [9]
    9. A device according to claims 5-8, characterized in that the working edge of the additional doctor blade is made with a thickening.
    [10]
    10. A device according to claims 5-9, characterized in that at least one rakl is pressed by the working edge to the surface of the drum with a force ensuring its bending.
    [11]
    11. A device according to Claims 5-10, characterized in that the means for supplying the powder are in the form of containers mounted above the drum with exit slots, each of which is formed by a squeegee and a blade fixed to the wall of the container.
    [12]
    12. The device according to PP.5-11, Fr. It is characterized by the fact that at least one of the tanks is equipped with a water cooling device.
    [13]
    13. A device according to claims 5-12, characterized in that it is provided with an air-suction pipe located at least with one doctor blade in the direction of rotation of the drum.
    [14]
    14. The device according to claim 13, wherein the air suction dubbing is mounted for movement in a direction parallel to the pCy of the drum.
    [15]
    15. The device according to claim 5, wherein the recesses on the surface of the drum are made in the form of intersecting grooves. Priority points, 07.23.75 on PP. 1-3; 5-15. 08.08.75 under item 4. Sources of information taken into account during the examination 1. Japan patent No. 49-11854, cl. 24 N 1, published. 1974 (prototype).
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    类似技术:
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    同族专利:
    公开号 | 公开日
    IT1064855B|1985-02-25|
    ATA492376A|1982-01-15|
    CH873276A4|1977-08-31|
    ES450430A1|1977-12-01|
    BR7604776A|1977-08-02|
    GB1508545A|1978-04-26|
    AT368075B|1982-09-10|
    US4141313A|1979-02-27|
    CH603256B5|1978-08-15|
    FR2318914B1|1979-05-04|
    MX143889A|1981-07-30|
    JPS5213553A|1977-02-01|
    JPS5913265B2|1984-03-28|
    FR2318914A1|1977-02-18|
    HU175108B|1980-05-28|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2532998|1975-07-23|
    DE2536911A|DE2536911C3|1975-08-19|1975-08-19|Method and device for the grid-like application of powdery hot melt adhesive to surfaces of textiles or the like|
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