Source: https://patents.google.com/patent/DE10123206A1/en
Timestamp: 2020-03-31 23:18:33
Document Index: 439123508

Matched Legal Cases: ['art 18', 'art 32', 'art 32', 'art 32', 'art 32', 'art 32', 'art 32', 'art 32', 'art 18', 'art 18', 'art 32', 'art 32', 'art 32', 'art 32', 'art 18', 'art 32', 'art 18', 'art 32', 'art 32', 'art 32', 'art 32']

DE10123206A1 - Production of touch-and-close fastener element involves forming support by feeding plastic material in free flowing state to gap located between pressing device and shaping device - Google Patents
Production of touch-and-close fastener element involves forming support by feeding plastic material in free flowing state to gap located between pressing device and shaping device
DE10123206A1
DE10123206A1 DE10123206A DE10123206A DE10123206A1 DE 10123206 A1 DE10123206 A1 DE 10123206A1 DE 10123206 A DE10123206 A DE 10123206A DE 10123206 A DE10123206 A DE 10123206A DE 10123206 A1 DE10123206 A1 DE 10123206A1
DE10123206A
Gottlieb Binder GmbH and Co KG
2001-05-12 Application filed by Gottlieb Binder Holzgerlingen filed Critical Gottlieb Binder Holzgerlingen
2001-05-12 Priority to DE10123206A priority Critical patent/DE10123206A1/en
2002-11-28 Publication of DE10123206A1 publication Critical patent/DE10123206A1/en
239000000463 materials Substances 0 title abstract 2
A44B18/0065—Male or hook elements of a mushroom type
B29C48/91—Heating, e.g. for cross linking
B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
B29C48/9145—Endless cooling belts
B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
B29C48/9155—Pressure rollers
B29C59/025—Fibrous surfaces with piles or similar fibres substantially perpendicular to the surface
The invention relates to a method for producing an adhesive closure part (18) with a multiplicity of hooking means (16) formed in one piece with a carrier (26), in which a plastic material in a flowable state to form the carrier (26) has a gap (22) between one Printing device (24) and a molding device (10) is supplied, which is provided with cavities (14) for shaping the respective hooking means (16). The fact that, in addition to feeding the plastic material into the gap (22), a support member (32) is fed to the latter, which supports the support (26) between the printing device (24) and the plastic material, can be used with a support (26) receive small thickness and / or the shape of the carrier (26) from the molding device (10) is facilitated.
The invention relates to a method for producing an adhesive fastener part les with a variety of Ver integrally formed with a support Hooking means, in which a plastic material in a flowable state for Formation of the carrier a gap between a printing device and a Forming device is supplied with cavities for shaping the respective hooking means is provided.
In a generic method according to DE 196 46 318 A1 for the production of an adhesive fastener part with a plurality of one piece with a carrier trained hooking means in the form of thickening stems with interlocking heads a thermoplastic art material in a plastic or liquid state a gap between one Printing roller and a form roller supplied, the form roller with cavities open to the outside and inside are provided, and both whale zen are driven in opposite directions to the wearer in To form a gap between the rollers. The known form roller has the a sieve, the cavities of which are preferably etched or have been produced by means of a laser, the finished Verha means arise solely from the fact that the thermoplastic at least partially in the open cavities of the forming roller screen substantiated. Polypro is preferably used as the thermoplastic pylene, polyamide, polyethylene, and one or more of these plastics containing copolymers or terpolymers used. The thickening of the sten Gel are in the form of flattened or concave depressions send mushroom heads trained.
With this known method can be very inexpensive at high Produce quality fastener parts, which with the formation of usual Haftver cooperate with corresponding fastener parts that can have comparable trained hooking means or these are made of a fleece, loops or loop material. The adhesive fastener part produced in this way is flexible and can be used adapt different geometries; self-elasticity behavior alone the closure is not available to any significant extent. This means, the molded or extruded adhesive fastener part keeps in essentially its predetermined outer shape and cannot be elastic in be stretched to a significant extent. In this respect elastic properties However, shafts are also desirable for fastener systems for example, if you are in orthopedic or sports medicine would like to fix rich bandages elastically on body parts, which then next a support function but should be so elastic that it supports the Trä eng such bandages and support parts. Furthermore, ela static fastener systems particularly well suited, cables from Kabelbäu to hold each other together and this in automotive and flight to be able to use the tools and shipbuilding. The currently over commonly used clamp-type cable connectors are for a difficult to install and can not be solved without destruction the, in contrast to the described fastener systems.
In WO 95/10202 there is already an elastic adhesive closure system has been described in which on a thin elastic trained Plastic carrier individual hooking means in the form of engagement hooks be set; only the associated manufacturing process is open agile and therefore costly. Also deal with the familiar Process not arbitrarily designed hooking means with the elastic Connect the carrier part. Since the hooking means further on the ela stretchable film are only attached, the hooking means are with not connected in one piece to the carrier, which is particularly the case with high force Introduction into the locking system can lead to the interlocking can tear off medium from the carrier.
In PCT publications WO 99/17630 and WO 99/17631 is flat if an elastic fastener part described, in which a relatively star res and rigid plastic material for the hooking means in the manner of a Layers applied to an elastic plastic film as another layer is, the layer materials themselves a firm connection with each other received. So that the interlocking means then elastic with the elasti layer film, the rigid layer material with the Interlocking means preferably cut by cutting so that the Interlocking means then with the stretching of the elastic film from each other can be moved away and reset again until they reach the intersected adjacent areas of the rigid layer material such as who bump into each other. The related manufacturing processes are also complex and costly and due to the use of several Layer materials is the thickness of the elastic fastener part corresponding large, what the use of this known system in such a way called micro-fasteners, the geometrically very small are constructive, does not appear to be suitable. Also can not go out be concluded that especially in the case of long periods of use and size the forces introduced lead to a separation of the layer layers, making this known fastener system unusable mes leads.
Starting from this prior art, the object of the invention based on the known methods for producing an elastic adhesive to further improve the closure part, in particular an inexpensive and safe process for the manufacture of such closures available to provide, even after a long period of use and at high Introductory staff work safely. Furthermore, the invention is the Task based on this, adhesive fastener parts as Mikrohaftver to provide closing parts with an elastic structure. One was gone This task is solved by claim 1 and / or claim 2 with all of its features.
Characterized in that according to the characterizing part of claim 1 in addition to the supply of the plastic material in the gap this a support part is supplied between the printing device and the plastic material supports the carrier in such a way that it supports the shape giving the hooking means is so thin that the carrier with a predeterminable extensibility or elasticity with appropriately suitable Tem plastic material is provided, it is ensured that with the form giving the hooking means integrally connected to the carrier that will. This ensures that even with prolonged use duration and high forces, the hooking means not unintentionally let it tear off from the ribbon or film-like carrier, which otherwise can lead to the lock system becoming unusable.
Since the support part during the shaping a large part of the over Comprises pressure device supplied pressure forces, the dehnba res or elastic part trained carrier very thin be tet so that with the inventive method elastic Have micro-fasteners or those with high elasticity realized. Also, the extremely thin design of the carrier comes its Elasticity values benefit themselves, so that very good elasticity is achieved let the physical properties be realized. With the method according to the invention can drive very high manufacturing speeds, so that the extent manufactured elastic adhesive fastener part is very inexpensive to obtain.
Characterized in that according to the characterizing part of claim 2 in addition to feeding the plastic material into the gap, this is a support part is supplied between the printing device and the plastic material supports the carrier in such a way that the plastic mat rial temporarily at least when shaping the hooking means again detachable connection with the support part, can be a very high supporting force in the form due to the adhesive connection realization and secondly the adhesive force can be used to the undercuts with their undercuts are safe and targeted to be able to mold the mold cavities of the molding device. By the forcible detachment from the molding device is secure ensures that the interlocking agents do not remain in the mold cavities where in the latter, it could seriously disrupt the production process. Is too ensured in such a way that by means of the counter part introduced do not force the hooks to unintentionally tear off, since these are formed from the cavities with gentle forces can. Therefore, the use of the support part is also for all those usable where in the mold when forming the behavior Kmittel undercuts are given, for example, a common To be able to shape hook shape or the like. In such cases, it is also possible to make the carrier material very thick, see above that then very small hooks on a thick support are in one piece, what for certain application modalities can be useful.
In a further preferred form of the method according to the invention a plastic film, preferably a polyester film, Po lypropylene film or polyamide film used. But it can be used as a support part also use a thin metal foil, for example an aluminum foil be det. In particular when using metal foils, the support part can be use again and again in a closed circuit so that no Waste arises, which benefits the environment on the one hand and the other contributes to lowering the manufacturing costs for the plant.
Any shape can be produced as a hooking means, as in for example hooking heads, engagement hooks, mushrooms or preforms Interlocking means such as stem material, the free head end in a subsequent molding process, for example egg calendering process, to be formed into interlocking heads.
It has also proven to be particularly advantageous as pressure and Molding device to use a pressure or a forming roller with entge opposite direction of rotation, the relevant rollers for the shape be heated. If the introduced plastic material for the shaping is a thermoplastic polyurethane material a convenient connection with the support part for the shaping aisle reached, which after the shaping but also again without any distance res can be separated for the preservation of the elastic adhesive fastener part.
In the following, the method according to the invention is explained using an embodiment Example explained approximately. The only figure shows, in principle ler and not to scale, the device for performing the Process.
The figure shows a shaping device, generally designated 10, in the form of a shaping roller onto which a screen 12 is mounted, which can consist, for example, of nickel. The screen 12 of the forming roll 10 has on its entire outer periphery cavities 14 which have been etched in a manner known per se by means of a galvanic process. These cavities 14 can have a substantially cylindrical basic shape; however, any other shape can also be etched. The galvanic treatment of the cavities 14 gives them a characteristic shape. The elevations in question can be used to produce the hooking means of an adhesive closure part 18, designated as a whole by 16, in a single operation. For this purpose, a flowable plastic material is supplied in a manner known per se in a plastic or liquid state by means of a feed device 20 in the form of an extruder to a gap 22 between the forming roll 10 and a printing device in the form of a printing roll 24 .
The form roller 10 and the pressure roller 24 are driven with the opposite direction of rotation, so that the plastic released from the extruder 20 can flow into the gap 22 between the rollers 10 and 24 and thus into the assignable cavities 14 . The plastic located in the gap 22 forms a carrier 26 to which the hooking means 16 are connected in one piece. At the same time, the distance between the two rollers 10 and 24 determines the width of the gap 22 and thus the thickness of the carrier 26 . The interlocking means 16 itself can be thereby forming ge that the plastic material of the mold roll flows into the open cavities 14 of the wire 12 10, wherein described in association with the African by the galvanic etching as above induced elevations in the hollow spaces 14 hooking means 16 are formed, the have a stem 28 formed by the cavity 14 , at the end facing away from the carrier 26 an all-round edge in the form of a thickening or a hooking head 30 is formed. The respective interlocking head 30 is suitable for interlocking with interlocking means of a further non-illustrated fastener part, for example in the form of a fake. The relevant manufacturing process of adhesive fastener parts is known and described in detail, for example, in DE 196 46 318 A1.
The manufacturing method described above is also particularly suitable for the production of so-called micro-adhesive material, in which the interlocking means 16 take an extremely small geometric size. In the present embodiment, a thermoplastic polyurethane material serves as the plastic material for producing the hooking means 16 including the carrier 26 . In order to be able to reduce the thickness of the carrier 26 in detail when producing the interlocking means 16, in addition to the supply of the plastic material in the gap 22, the supply of a supporting part 32 is provided, which is fed between the pressure roller 24 and the plastic material of the carrier 26 , the support thereof carries out with. Without the supporting part 32 in question , the contact pressure of the pressure roller 24 would suffice if the carrier 26 were made sufficiently thin, which may be at a line pressure of more than 1 t in order to damage the carrier 26 . By means of the mentioned support part 32, on the other hand, the relevant contact pressure forces are absorbed uniformly and it is surprising that in this way the carrier 26 can be exempted from harmful forces and made extremely thin.
A plastic film, preferably a polyester film, polypropylene film or polyamide film, can be used as the support part 32 . A polyester film is to be used in the present exemplary embodiment. The support member 32 can also consist of a thin metal foil, for example an aluminum foil or the like. In the embodiment shown, the support part 32 is continuously moved over deflection rollers 34 in a closed circuit, the direction of rotation of the deflection rollers 34 being represented by arrows. If the support part 32 is designed as a polyester film, it is more practical, according to practical tests, to dispose of the polyester film after its use and to insert new film material at the location of the upper feed of the plastic material.
In addition to the aforementioned deflection rollers 34 , a take-off roller 36 is also provided, with the same direction of rotation as the pressure roller 24 , the take-off roller 36 serving to demould the hooking means 16 from the cavities 14 of the shaping roller 10 . In order to make the head shapes of the hook heads 30 flatter, in particular in order to broaden their edge, it can be provided that the actual shaping process is followed by a calendering process in which two calender rolls 38 under pressure with the support part 32 removed on the back of the Carrier 26 and act on the top of the Verha kungs heads 30 . After the calendering process in question, the adhesive fastener part 18 can then be wound up on shipping rolls for further transport in the usual and not shown manner. After removing the support member 32 in the form of the polyester film, it can also be provided that one immediately takes the fastener part 18 ent and in another work station (not shown) undergoes the named calendering process. If 12 modern conical sieve structures are used instead of the simple structure of a sieve, calendering can also be dispensed with entirely if necessary.
In order to ensure a smooth flow of the connection of the support part 32 with the support 26 in the forming gap 22 and the subsequent removal of the support part 32 from the support 26 in the region of the lower deflection roller 34 as shown, both the molding roll 10 and the pressure roller 24 are heated. It has proven to be advantageous to drive the pressure roller 24 in a temperature range up to 130 ° C, preferably in the range around 100 ° C, whereas the forming roller 10 is operated in a temperature range between 20 ° C and 150 ° C, preferably in a temperature range around 40 ° C. Furthermore, it has proven to be advantageous to select film material for the support part 32 , for example in the form of a polyester film whose Shore A hardness according to DIN 53.504 is in a range from 80 to 89, preferably 85. The stretch elasticity of the carrier film as support part 32 can be in the range from 0 to 5% for a polyester film, whereas the thermoplastic polyurethane material used for the adhesive fastener part 18 has a stretch elasticity between 15 to 89%; both values measured according to Vickers at 1 mm thick test specimen and room temperature.
The mentioned carrier 26 and the support part 32 can have a band structure, but can also be designed as a sheet-like film body. The extensible or elastic support 26 can be made very thin. In the case of an elastic property, the hooking means 16 can be moved away from one another under the action of force, whereby the carrier 26 expands further and, when the force 26 of the carrier 26 is removed, the hooking means 16 automatically returns to their original position due to its inherent elasticity. In this respect, a vollela-elastic fastener part 18 is realized with which a variety of practical applications can be realized.
If a polyester film is used as the support part 32 , it is also possible to produce a separable connection between the support part 32 and the support 26 during the shaping. The relevant adhesive or adhesive connection then ensures that the subsequent removal process, in which the hooking means 16 are molded out of the cavities 14 of the molding device 10, can take place without hindrance, even if undercuts of the head material of the hooking means 16 of parts of the molding device 10 are undermined. The latter also allows a higher speed of the production process. Furthermore, it is possible in this way to implement small-sized head parts or hooking means 16 with very thick supports 26 (not shown). The polyester film preferably remains as a supporting part 32 on the carrier 26 when the calendering process 38 is connected in order to influence the head design of the hooking means 16 in a favorable manner. Then the support part 32 can then be separated from the carrier 26 and disposed of or returned to the molding device for a new processing step.
1. A method for producing an adhesive fastener part ( 18 ) with a large number of integrally formed with a carrier ( 26 ) entangling means ( 16 ), in which a plastic material in a flowable state to form the carrier ( 26 ) has a gap ( 22 ) between one Druckeinrich device ( 24 ) and a molding device ( 10 ) which is provided with cavities ( 14 ) for shaping the respective hooking means ( 16 ) is seen ver, characterized in that in addition to the supply of the plastic material in the gap ( 22 ) this one Support part ( 32 ) is supplied, which carries out the support of the carrier ( 26 ) between the printing device ( 24 ) and the plastic material in such a way that it is so thin in the shaping of the hooking means ( 16 ) that the carrier ( 26 ) with a predeterminable Elasticity or elasticity is provided with a suitable plastic material.
2. A method for producing an adhesive fastener part ( 18 ) with a large number of interlocking means ( 16 ) formed integrally with a carrier ( 26 ), in which a plastic material in a flowable state to form the carrier ( 26 ) has a gap ( 22 ) between one Druckeinrich device ( 24 ) and a molding device ( 10 ) which is provided with cavities ( 14 ) for shaping the respective interlocking means ( 16 ), characterized in that in addition to the supply of the plastic material in the gap ( 22 ) this a support member ( 32 ) is supplied between the printing device ( 24 ) and the plastic material, the support of the carrier ( 26 ) such that the plastic material, at least in the shape of the hooking means ( 16 ), a re-separable connection with the support part ( 32 ) received.
3. The method according to claim 1 or 2, characterized in that a plastic film, preferably a polyester film, Po lypropylene film or polyamide film is used as the support part ( 32 ).
4. The method according to claim 1 or 2, characterized in that a thin metal foil, for example an aluminum foil, is used as the support part ( 32 ).
5. The method according to any one of claims 1 to 4, characterized in that the film-like support member ( 32 ) is reused in the manner of a closed circuit.
6. The method according to any one of claims 1 to 5, characterized in that as hooking means ( 16 ) hooking heads ( 30 ), engagement hook, Pil ze or preforms such as stems ( 28 ) are formed in the molding process.
7. The method according to any one of claims 1 to 6, characterized in that the molding process is followed by a calendering process ( 38 ), which preferably acts on the head design of the Verha kmittel ( 16 ).
8. The method according to any one of claims 1 to 7, characterized in that the introduced plastic material is a thermoplastic poly urethane material.
9. The method according to any one of claims 1 to 8, characterized in that as a pressure ( 10 ) - and molding device ( 12 ), a pressure or form roller are used with the opposite direction of rotation, and that the relevant rollers ( 10 , 12 ) for the molding process are heated.
DE10123206A 2001-05-12 2001-05-12 Production of touch-and-close fastener element involves forming support by feeding plastic material in free flowing state to gap located between pressing device and shaping device Withdrawn DE10123206A1 (en)
DE10123206A DE10123206A1 (en) 2001-05-12 2001-05-12 Production of touch-and-close fastener element involves forming support by feeding plastic material in free flowing state to gap located between pressing device and shaping device
PCT/EP2002/004553 WO2002091869A1 (en) 2001-05-12 2002-04-25 Method for producing a touch-and-close fastener element
US10/476,458 US20040119192A1 (en) 2001-05-12 2002-04-25 Method for producing a touch-and-close fastener element
EP02737993A EP1387626A1 (en) 2001-05-12 2002-04-25 Method for producing a touch-and-close fastener element
JP2002588794A JP2004533943A (en) 2001-05-12 2002-04-25 Method for manufacturing contact and closure fastening elements
JP2008119908A JP2008221848A (en) 2001-05-12 2008-05-01 Contact and closing fastening element
DE10123206A1 true DE10123206A1 (en) 2002-11-28
ID=7684596
DE10123206A Withdrawn DE10123206A1 (en) 2001-05-12 2001-05-12 Production of touch-and-close fastener element involves forming support by feeding plastic material in free flowing state to gap located between pressing device and shaping device
US (1) US20040119192A1 (en)
EP (1) EP1387626A1 (en)
JP (2) JP2004533943A (en)
DE (1) DE10123206A1 (en)
WO (1) WO2002091869A1 (en)
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2001-05-12 DE DE10123206A patent/DE10123206A1/en not_active Withdrawn
2002-04-25 EP EP02737993A patent/EP1387626A1/en not_active Withdrawn
2002-04-25 WO PCT/EP2002/004553 patent/WO2002091869A1/en active Application Filing
2002-04-25 US US10/476,458 patent/US20040119192A1/en not_active Abandoned
2002-04-25 JP JP2002588794A patent/JP2004533943A/en active Pending
2008-05-01 JP JP2008119908A patent/JP2008221848A/en active Pending
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2002-11-28 OP8 Request for examination as to paragraph 44 patent law
2004-02-19 8127 New person/name/address of the applicant
Owner name: GOTTLIEB BINDER GMBH & CO. KG, 71088 HOLZGERLINGEN
2010-10-14 8130 Withdrawal