Laminated hook fastener.

Description: TECHNICAL FIELD [Detailed description of the invention]

Laminated hook fastener The present invention is a hook / loop type improved fastener and an extrusion / roll molding assembly. It relates to a method of producing such a fastener using a mating method. Assignee of this application Describes a device for producing separable fasteners, U.S. Pat. No. 4.775. A U.S. special that describes products manufactured by No. 310 and this U.S. patented device. He is the right holder of No. 4.872.243. Described in these US patents The stripped fastener of the form has a large number of close upright hook-like protrusions, These protrusions engage freely with the loops of the corresponding fastener strips, Reusable or semi-permanent commercially available under the Velcro [F] brand name Form a closed body. Many (different types) depending on the form of the multi-hook fastener A structure in which the strip fasteners themselves are bonded together using the materials of Combine. Such fastener devices are widely used in various applications. Ta Speaking of which, the notebook cover of a car was stuck to a foam sheet pan, or the food bag was closed. For attaching protective materials to military vehicles and for attaching floor covers to the floor. It is said. Many of the uses mentioned here and well known to those skilled in the art (in other uses, fasteners are second Permanently taken on the body, for example, textile fiber pieces, sheet pans, floors or paper bag flaps Must be glued. However, sewing can be done by attaching fasteners. Limited according to the nature of the material that can be made. The main person who attaches fasteners to other objects As a method, an adhesive method has also been used for a long time. U.S. Pat. No. 3.773. No. 580 first applies synthetic resin adhesive to one side of the fastener base material (with an upright engaging element). Fastener by applying to the opposite side) and then applying adhesive to the object substrate It discloses a method of attaching a member to an object base material. Then the glue on the fastener Activates the coating. Fastener member by combining two surfaces coated with adhesive Is firmly attached to the object substrate. This U.S. patent states, "Adhesives on tape members. For reliable bonding, the opposite surface of the tape member must be in contact with the tape member and the adhesive. It is preferable to have a suitable base coat for the combination. " USA Patent No. 3.726.752 states that the adhesive laminate (synthetic resin-based adhesive is polya). Polyamide substrate and adhesive when making (laminated on a web of mid-polymer) It shows that it has been found difficult to make a strong bond of a single layer. And this conventional Technology has made some attempts to overcome this problem. This US patent is this To overcome the problem, polyamide with a primer consisting of a composite chemical mixture in a solvent The web is processed to improve the joint surface. U.S. Pat. No. 2.349.290 No. 3.060.070, No. 3.111.448, No. 2, 766, Many U.S. patents, including No. 164, are primarily on the special side of natural or synthetic rubber It discloses a method of binding a poly (amide) polymer. All of these teachings Depends on chemical means to enhance the ability to bond to the surface of the sheet material or textile material There is. Many plastic fastener tapes allow the hook protrusions to work properly Made from a plastic material with the required minimum strength and elasticity. Xi By convention, the fastener tape side opposite the upright hook is well known in the art. It is a smooth, flat, uniform and regular surface that is difficult to bond. like this Difficulties raise specific issues for hook loop fasteners. Made of this kind The product is a convenient product and requires complex chemical treatment on the tape prior to bonding. In some cases, this convenience advantage is lost. This is done by applying corona treatment at the manufacturing plant that makes fastener tapes. It is known to apply pressure sensitive adhesives to eel fasteners, but such treatments A wide range of adhesive types that are not available to many users A rational solution for creating fastener surfaces that can be easily combined to various surfaces using It is not something to present. U.S. Pat. No. 3.594.865 on Base Web A device that continuously forms a flexible web with molded protrusions of a soaked plastic material The place is described. The base of the web is a porous woven fabric or non-woven fabric or extruded It is one of the molded films. The support cloth is melted at the same time as the hook is formed. Rustic is impregnated. U.S. Pat. No. 3.594.865 is shaped by the device Although it does not elaborate on the properties of the finished product, it can be "liquid molded" at appropriate points. Plastic material, for example molten plastic, in a wire hook molding recess Inject into the surface and gaps of the base cloth on the surface of the drum It fully characterizes the impregnation of the base fabric. Base cloth under the nozzle Moving and this nozzle is the die used to form this plastic hook The base cloth is impregnated with the same plastic that was used to inject it into the cloth. Reveals that the porous base web fabric is completely saturated with plastic I'm tasting. This means that the backing material is firmly attached to the base of the hook sheet. And control the distribution of plastic within the backing material to the extent necessary to hold But aesthetic as a backing material that acts to modify the back of the fastener What is the product of the present invention that does not cover the banking material enough to destroy its features? Different. Banking of U.S. Pat. No. 3.594.865 mainly hooks A support that forms and accepts fasteners or glue backing fasteners It is not modified so that it can be used, and a loop material is used as the backing material. It is also not possible to form back-to-back fasteners. In addition, many using the composite lamination method It is also known to add a bondable surface to the sheet material, but such a method Is expensive and often bulky, rigid, peelable, working temperature limited and other laminates Produce a final product with undesired properties for. There are no products that use such technology, which are well known in the field of hook loop fasteners. It is a loose back fastener. Such products include hook fasteners and loop fasteners. It is made by adopting fasteners and joining them back to back. The resulting laminate has a hook on one side and a loop on the other side. like this Prescribe wire binders, plant binders, sprints, etc. Widely used in many strapping tasks such as fastener straps that hold in place It is used. Traditional stacking of such products has two components as described above. The focus was on the method used to stack the. Contact of such laminated materials The resulting bulkiness clearly limits its usefulness. Therefore, it is an object of the present invention that it is of little compatibility with binding to other materials. Includes upright hooks, whose properties have been significantly modified from a flat, smooth and uniform surface Manufacture the hook portion of a hook loop fastener device with a face opposite to the face There is. Another object of the present invention is to use a plastic hook loop fastener. Adhesive, glue, cement on the back of the cement without any special surface treatment The purpose is to create a surface that easily accepts binders such as. Yet another object of the present invention is the back of the base of a plastic hook fastener. It is a loop surface that engages with the hook on the front of it for bulkiness, rigidity and thickness. The purpose is to create a loop surface that can form a small back-to-back laminate. A brief overview of the present invention Made of plastic hooks as described in U.S. Pat. No. 4.794.028 The method of construction utilizes the equipment described in US Pat. No. 4,775.310. To. This device "is formed on the periphery and forms a void extending inward. Cooperate with a first cooling integrally forming roller with a hook and this first forming roller The second pressure port-la installed as described above and the first and second rollers are generally installed respectively. Means that simultaneously rotate around the axis of the above in opposite directions, and the first and second The molten plastic material forms the hook adjacent to the roller at its strong interface. Numerous hook-like protrusions that fill the vacant space and extend integrally from the base and one side of this base The strip-shaped extruded body is shaped so as to form a strip-shaped member having a raised portion. After cooling to a desired temperature by the means for forming and the first forming roller, the strip The hook-shaped protrusion of the hook-shaped member at a position separated from the interface between the first and second rollers. Pull the riser out of this hook-forming space without opening the hook-forming space. The means for taking out from the first forming roller and the like. The present inventor has two An integral part of the strip material on the opposite side of the hook into the nip formed by the cylinder It has been found that various sheet materials can be introduced. Amazing Introducing such a material into the nip with molten plastic is a work It is desirable that there is some kind of caution and restriction that does not interfere with the work, but of course this The formation of such an in-situ laminate brings great advantages. The inventor has developed a wide variety of materials such as non-woven fabrics, knitted fabrics, reinforcing yarns, etc. Screening and screening for scrims, nets, paper, plastic films, metal windows Almost any material, such as ilme or thin notebook, can be handled in this way. I found. In-situ porosity of stripped plastic fastener notes Forming with external backing is often made of molten plastic web material Inject into the structure of the plastic, where the tight mixing of the plastic in the pores of the web Achieved by making adjustments. In the case of non-porous film, film The surface tends to melt, causing intermolecular diffusion and forming strong bonds between sorts. To. The inclusion of such external materials has considerable advantages over conventional laminate manufacturing methods. Can be obtained. This strip material does not contain any external material and has a bond Strong and wide range of materials can be bonded in this way. In addition, the hook The method of adding backing at the time of formation is to use an adhesive or other binder in the second stage. It provides an economic advantage over the conventional method of forming a laminate. Details of the invention For a better understanding of the invention, refer to the following detailed description related to the accompanying drawings. I want to be. Figure 1 shows conventional plastic fastener hook tapes for manufacturing. It is the schematic sectional drawing of the apparatus used. FIG. 2 is a schematic cross-sectional view of the apparatus of FIG. 1 modified according to the present invention. FIG. 3 is a schematic rear view of the molding roll arrangement of FIG. FIG. 4 is a schematic cross-sectional view of the hook fastener tape formed by the conventional method. is there. FIG. 5 is a schematic cross-sectional view of an example of an entertaining body of the present invention. FIG. 5A is another schematic of the product of FIG. FIG. 6 is a schematic cross-sectional view of another product of the present invention. FIG. 7 is a schematic cross-sectional view of another embodiment of the present invention. FIG. 8 is a schematic cross-sectional view showing where the bottom layer of the product is a loop fastener. .. FIG. 9 is a schematic cross-sectional view showing where the product includes the foam layer. FIG. 9A is a diagram showing how the foam layer of FIG. 9 can be sheared. Figure 1 is for conventional production of conventional plastic fastener hook tapes. It is a cross-sectional view of the device. Extruder barrel 1 melts plastic Let this molten plastic 3 nip between the base roller 4 and the void roller 5 Feed through die 2 into 6. This vacant roller is a well-known hook-loop type Includes vacant spaces for forming trip fastener hooks. Shaped in nip 6 The strip fastener material made is along the perimeter of the void roller 5 and strikes. Move around the lip forming roller. This strip forming roller 7 is empty Pull out the hook-formed sheet 8 from the roller and wind it up (not shown). Helps to send to. There are many ways to feed the sheet material to the molded part of the hook forming device, and Fig. 2 shows this purpose. It shows a device that is particularly well suited to. The inventor nips molten plastic 3 Send to 6 to make strip fastener tape and at the same time preform to nip 6 By introducing the sheet material 10, the sheet material is tightly bonded to the fastener. I found that it can be an integral part of the strip fastener structure. .. As in Figure 1, the extruder 1 melts through the die 2 into the nip 6 between the rollers 4.5. Feed the molten plastic 3. However, the inventor is Banking Roller 4 A set of bottles was added around the peripheral surface at both ends of the bottle. These pins flatten the material 10 Send it to Nip 6 without wrinkles. Smooth and flat product for fasteners Smooth, wrinkle-free and properly tensioned to form layer backing It is important to maintain the tongue. Appropriate tension application and matching of secondary sort material To ensure, a roll of secondary material 10 is mounted on the let-off device and rolls. Turn around the replacement roller 11 and send it to the web habit removal device. This web habit removal device Is typically by the Fife Manufacturing Company Conventionally known as sold, notebook webs are made of elastomeric materials. Send to backing roller 4 around scroll roll 13 consisting of tongue ribs Sometimes the edges of the sheet material web are aligned to hold the sheet firmly and The seat is designed to collide with the locking roller 4 and the pin 14. Bi 14 and roller 4 feed the web with molten plastic 3 into nip 6. Due to the pressure applied by the tight space of the nip 6 the molten plastic 3 As it is sent, it flows into the vacant space of the vacant roller 5 and also the backing roller 4 It also flows into the micropores existing in the sheet material supported by. In this way, the web system The to 10 is tightly coupled to the hook forming sheet 8 and becomes an integral part of the hook forming sheet 8. G 9 is formed. Figure 3 is a rear view of the forming roll stack along line A-A1. To. The banking roller 4 is supported by a shaft 15, which is a sidepiece. It is held by a bearing 16 in the proper position of the rate (not shown). Bearing 1 6 is in contact with the hydraulic line 19 from the hydraulic pump located away from the roll stack It is a continuation. Bin 14 fitted to shaft 15 holding banking roller 4 Held by hub 18. Here, pin 14 is placed inside the backing roller 4. Can be incorporated directly into, but the inventor uses a separate bin holding hub. I think it is preferable to do it. Bottles of various sizes and shapes for different notebook materials This is because it is possible to obtain a degree of flexibility by using it. The usual procedure for operating the equipment described here is through the machine secondary backing 10 Is installed, and the extruder 1 is started. As a result, the plastic 3 passes through the die 2. Smoothly flows through the lip of die 2 and the nip between the two forming rollers 4.5 Move to around 6. The molten plastic is picked up by the backing roller 4. The pressure from the hydraulic cylinder 17 rises the backing roller 4 to a predetermined position. It is sent into the nip 6 as it is made to. Banking Roller 4 and Vacancy Roller As the gap 6 between 5s decreases, the molten plastic 3 flows into the double whelk 6 and It is sent to the open space of the forming roller 5. Molten plastic has a backing thickness , Backing porous structure, viscosity of molten plastic and plastic in nip It is allowed to penetrate into the pores of the backing material 22 depending on the pressure of the backing material 22. Pressure in nip 6 The force forms the backing with the hydraulic pressure used to close the roller 4.5 and fills the void. It is a function of the amount of material pumped into the nip 6 relative to the amount consumed. FIG. 4 is a cross section of a hook fastener tape formed by a conventional method. Fu The hook tape consists of a base 20 and a hook 21 protruding from this base. The plastic material that forms the tape is almost entirely uniform. FIG. 5 shows the above. As described above, the present invention made by introducing a non-woven fabric into the nip of a molding roll. This is a specific example of a product. Base 20 contains hook 21 protruding from it , Attach this to the non-woven fabric 22. Fastener at the interface 23 of the two layers The plastic from the non-woven fabric 22 fibers (flows around somewhere and wraps them By squeezing, the non-woven fabrics are combined to form a laminate consisting of two layers. Non-woven The cloth can be light or heavy, thin or thick, or dense. It may be coarse-grained. Nonwoven properties, applied pressure and plastic in the nip The viscosity of the stick is such that the plastic flows into the fiber net, or the non-woven fabric Determine how much it will be embedded in the plastic. FIG. 5A schematically shows the laminate of FIG. In the figure shown, layer 23 shows the mixed band of cloth and plastic. Here, this The layer is not a uniform cross section, but rather from the bottom of the plastic layer 20 without fibers There is a concentration gradient across this layer up to the top of the fiber layer 24 without plastic. Please understand that it exists. On the other hand, if the non-woven web is thick and dense, The rustic penetrates into the non-woven fabric only at the edges, and the back of the fastener is free to erect the fibers. It has the appearance of a non-woven fabric. Non-woven fiber web, plastic zippers that form fasteners And the operating conditions of the method are careful (by choosing, it protrudes from the surface of the plastic Manufactures a wide range of products with varying degrees of fiber and many (different uses) It is possible to provide various products suitable for. FIG. 6 is a cross-sectional view of another product of the present invention, with a coarse knitted fabric reinforced scrim 2 Produce excess of banking cloth in addition to calendar nip 6 at a slightly faster rate ing. Due to the open structure, the plastic 20 is a large part of the cloth scrim 25 But the cloth part still approaches the surface 26 of the fastener. Such a set Alignment can be used to add strength to plastic tape, plus fasteners It can also significantly modify the tic surface. FIG. 7 shows a plastic with an upright hook 21 laminated on paper 27 containing an adhesive layer 28 on its surface. Shows Stick Hook Fastener 20. The adhesive may be of a convenient type depending on the intended use of the product. This way And reactivateable adhesives, pressure sensitive adhesives or contact adhesives as the bottom layer of the laminate Can be applied. Depending on the nature of the adhesive laminate to be applied, the adhesive will be different. Care must be taken not to be squeezed or destroyed by the pressure of the tap. Not. FIG. 8 shows the present invention in which the backing layer 29 is on the loop side of the hook loop fastener. Yet another specific example of this technology is shown. Molten plastic 3 passes through die 2 A loop bar that flows and holds the banking together with the plastic notebook. Backing of loop 29 at interface 27 that wraps some thread of the hook Flows into the pores of. Thus, a well-known product when made by adhesive bonding Manufactured, but in this embodiment, the laminate is the outer member needed to hold the layers together. Manufactured without charge. Such back-to-back products are in the field of hook and loop materials. Is useful for well-known so-called backstrap manufacturers. FIG. 9 shows a specific example of the present invention in which the notebook-like material is a thin polyurethane foam 30. ing. This thin foam 30 can be introduced into the nip of the calendar as described above. The surface of the foam 30 is tightly bound to the plastic of the strip fastener 20 .. FIG. 9A has the same configuration as FIG. 9 with the foam 30 attached to the back of the fastener 20. But also shows what happens when you try to remove the foam 30 To. The binding force that attaches the foam 30 to the plastic fastener 20 is the foam. Greater than 30 cohesive forces. Attempts to separate the foam from the back of the fastener 20 And the foam 30 splits or tears inside 31 of it, a plastic strip A considerable part remains on the back of the fastener. The following examples will help to further understand the scope and uniqueness of the invention. Example 1 The device described in US Pat. No. 4.775.310, Hercules C. Known as resin L-2121 sold by hemical Corporation Velcro Group Corpora using nylon 12 resin A plastic hook product known as the CFM-15 hook type Arranged to manufacture. The melting temperature of the resin measured at the outlet end of the extruder is 45. It was 4 ° F (234 ° C). The die head temperature is 460 ° F (238 ° C) Ta. The line speed is 30 feet per minute (9,14 meters) and the tape width is 1. 0 inches (25,4 cm), calendar pressure is 2000 # gauge Ta. The top roll temperature is 31 ° F (-1 ° C) and the molding roll temperature is 55 ° F. It was (13 ° C) and the bottom roll temperature was 37 ° F (3 ° C). Non-woven fabric (Fr e-udenberg Pe1lon 850 Nairo sold by Company Cut a roll of non-woven fabric) to a width of 10 inches (25.4 cm) and it Was introduced into the calendar at the bottom, at the nip formed between the molding rolls. After a short start-up time, the fabric was processed smoothly through the molding without difficulty .. The non-woven fabric was tightly integrated with the plastic of the hook sheet. Formed in this way The laminated body cannot be separated into its respective constituent parts, and if forced, the fiber layer is broken. It was decided to break it. The back of the hook product is quite different from the surface of the non-laminated product It had a smooth and soft fibrous surface. Example II DuPont Com for equipment described in U.S. Pat. No. 4.775.310 Added 10% masterbatch refractory material, copolyester resin sold by pany Using Hytrel [F] 8238, which gave the final product fire resistance, Velc Known as the hook type CEM-15 of ro Group Corporation Arranged to manufacture plastic hook products. Polymer melt temperature The degree is 475 ° F (246 ° C) at the end of the extruder and the Guy temperature is 476 ° F (246 ° C). It was 247 ° C). Line speed is 30 feet per minute (19,4 meters) It was. Weighing 135 ounces per square yard, 0.009 inches (0,02) Non-woven sold as Remay [F] with a thickness of 3 cm) Cut a roll of cloth to a width of 10 inches (25,4 cm) and describe in Example . It was introduced into the bottom of a solid device, a nip formed between molding rolls. Bottom low The temperature is 50 F (10 ° C) and the molding roll temperature is 50 ° F (10 ° C). The top roll temperature was 90 ° F (32 ° C). Apply 100 lbs (45,36 kg) of tension to this non-woven fabric for the calendar Prevents wrinkles when the note is passed through the nip, and the bottom roller is molded It was driven at an excess speed of 8% with respect to the wheel. The non-woven fabric had less wrinkling and bending. Tension applied to the cloth is 35-40 bon Reduced to do (15,88-1814 kg) and increased overfeed to 8.5% Therefore, wrinkles have been reduced to an acceptable level. The laminated product thus formed is a plastic base of hook notebook and a non-woven fabric. It had an integral joint with the upper layer. Shape the underside of the hook tape base The resulting plastic was tightly integrated into the gaps in the non-woven fabric. This non-woven cloth is broken It could not be separated from the plastic unless it was broken. Tear the laminated sheet Even then, the two layers did not separate. Due to the heavy weight of the non-woven fabric Fibers appear on the underside of the laminate, and strong friction can scrape the fibers off the surface. I was able to break it apart. However, even after considerable friction, the Lord As a large amount of fibers from the top surface of the non-woven fabric remains attached to the surface of the plastic there were. Example Ding II The same structure as that used in Example II was used , but the non-woven fabric used was 1 square. Weight of 0.6 ounces per yard, 0006 inches (0,015 cm) Rema known as Rev + ayJ 5tyle 2006 with a thickness of) It was a lighter product of y. Removes wrinkles and bends from the web (to remove tension) It was reduced to 25 bonds and the same oversupply was used for the bottom rollers. This combination The product formed in was similar to that of Example II, but was polymerized in the gaps of the non-woven fabric. -The degree of mixing was greater than in the case of the example. However, with strong friction It is still possible to raise the fibers from the surface, many of which are on the surface of the plastic. It was protruding as a very thin sword on the surface. Example IV The exact same configuration used in Examples II and III was used, but not used. The woven fabric was even lighter than in the previous example. The version of Remay in this example is 05 ounces per square yard. Rema with a weight of 0004 inches (0,010 cm) It was y [F] 5tyle 2250. Removed wrinkles and bends from the web Therefore, the tension is reduced to 20 bonds (907 kg), and the excess supply is reduced to the bottom. Increased to 9% at La. The product formed by this combination is Example I. It was similar to those of I and III, but the degree of polymer mixing in the gaps of the non-woven fabric was It was slightly larger than in Example III. This mixture is carp on the surface To the extent that it is difficult to raise the fibers from the surface even with strong friction when rubbing with It was strengthened. Nevertheless, as an integral part of the surface, and with a very fine fluff Then, the fibers that even protruded from the surface could be clearly recognized. Example V DuPont Com for equipment described in U.S. Pat. No. 4.775.310 Hytrel 8238, a polyester copolymer resin sold by pany Using Velcro Group Corporation hook type CF Arranged to manufacture plastic hook products for sale as M-15. The melting temperature of the polymer is 475 ° F (246 ° C) at the end of the extruder, which is the Guy temperature. The degree was 470 ° F (243 ° C). Line speed is 35 feet per minute (8,8) 9 meters) and tape width 8-9 inches (20,32-22,86 sen) It was (chimeter). The bottom roll temperature of the calendar is 85 ° F (29 ° C) , The molding roll is 40 ° F (4 ° C) and the top roll is 40 ° F (4 ° C) It was. The calendar pressure was 2500 bonds per straight inch. Loop Roll of tricot knitted fabric sold by Velcro USA as 3200 Cut vertically to a width of 10 inches (25,4 cm), bottom, molding roll It was sent into the calendar at the nip formed by. Shape the hook product When formed, the molten plastic banking flowed into the gaps in the knitted fabric. plus The layers forming the laminate between the tic hook and the tricot fabric form a layer. It could not be separated without destroying the existing material. Loop 3200 is very open Structure, the plastic from the hook part of the laminate takes most of the base yarn of the cloth Enough loops from the back of the product to the top, despite surrounding and wrapping A loop with the product tape footer on the opposite side of the structure, which remains prominent in the orientation Tightly engage the hooks from the surface when wound so that they face each other. I was able to do it. Thus, the hook loop fastener as a back-to-back closure Formed a product known by its common name. Example VI The Loop 3200 sample described in Example V is a fire well known in the art. 178 inches (0,3175 cm) thick using flame bonding technology It was laminated on a polyether urethane foam. 10 foam laminates thus formed Vertically cut into inch (254 cm) wide material rolls and described in Example V It was sent to the hook forming device. However, in this example, the resin used was Manufactured by EXXONChen + 1cal Company, LL6301.57 It was a polyethylene resin sold as. Polymer melting temperature is extruded It is 420 ° F (216 ° C) at the edge of the machine, and the Guy temperature is also 420 ° F (216 ° C). Met. Calendar pressure is 1250 bonds per straight inch, bottom roll The temperature is 70 ° F (21 ° C) and the molding roll temperature is 50'F (10 ° C). The top roll temperature was 90 ° F (32 ° C). The line speed was 30 fees 1- (7,62 meters) per minute. Foam loop product The foam side of the layer is oriented so that it will bond with the plastic backing of the hook part of the product. The loop part was turned outward from the bottom side of the product. In this way a sturdy laminate is obtained Ta. The layer of this laminate can be separated by tearing the loop part from the plastic part. However, the fracture between the layers occurred along the strong interface of the foam, and it was plastic. A thin foam layer was left on both the loop and the loop. The force required to separate the layers is 1 width It was about £ 2 per punch. By using foam as the intermediate layer, it is soft You can make a product with a loose loop backing, which is back-to-back Easily engaged with the hook on the face side of the product when rolled into the shape. Implementation of loop structure The degree of contamination caused in Example II is almost eliminated, and the presence of the foam layer is soft. It acted to help hook-loop engagement. Example VII Using the process configuration of Example VI, a different loop, Velcr. Instead of the loop using the 1oop 5ty1.e 3610 sample in Example V Used for Loop 3610 is 8.02 ~ 9.95 per square yard Displayed thickness range 0.062 ~ 008 fins (0,1575 ~ 0. It is a relatively heavy loop cloth (2210 cm). Attach the loop to the loop cloth No difficulty under 100 bonds (45,36 kg) of tension applied I passed it. The excess supply at this time is 8% for the bottom roll, and the nip pressure is direct. It was 1250 bonds per wire inch. The plastic from the forming hook is mixed with a lot of fibers on the back of the loop cloth , Wrap it up and create a tight bond that holds the loop cloth, two It created a tight bond that held the layers together. Loop 3610 looks like this Because it is a durable product, one corner of the cloth is peeled off from the plastic, and the bond strength of the laminate is strong. I was able to test it. Peeling force is 6 bonds to separate the two layers (2, 72 kilograms) was average. Loop surface of Loop 3610 is laminated process It doesn't look like it was affected by When the hook was engaged with the loop in the state, a gripping force was obtained. Formed in this way Back-to-back closure performance is independent of the same polymer for Loop 3610 It was comparable to the hook product formed in the above. Example VIII Using the process configuration of Example vI, a different loop, Velcr. 1oop 5tyle 3003 sample of the loop used in Examples V and II Introduced instead. Loop 3003 has a fairly high loop pile on one side Well, with a relatively heavy weight of 9 ounces per square yard and 0.10 inches (0,2) It is a circular knitted cloth with a display thickness of 54 cm). This loop is In the sample thus formed, it passed through the nip with some difficulty due to its bulkiness. Is a very highly mixed loop cloth backing fiber and plastic resin Ta. The binding force was strong enough. The two layers must destroy one or both Could not separate due to strike. The pile fibers of the loop cloth are made by the laminating process. I don't think it was affected, and the closing performance of the back-to-back product thus formed is the same. Equivalent hook products manufactured by individually testing style independent loops It was almost the same as the closing performance of. Example IX Extruded structure of Examples v to VIII using Escorene polyethylene Another laminate was made using Naru. In this laminate, the bottom roll and molding b The web introduced into the nip between the wheels was kraft paper. Paper is hook tape It was firmly attached to the back of the body and could not be peeled off from the laminate unless it was torn. .. Penetration of plastic into paper is indicated by the ability of the paper to separate from itself. Only in the sea urchin, the thin veil of paper fiber is still attached to the plastic there were. Example X A length consisting of a water-activated adhesive on one side instead of the standard kraft paper of Example IX. Kraft paper was introduced into the nip between the bottom roll and the molding roll. At this time, paper The adhesive side of the hook tape was away from the plastic. Paper is Example IX Tightly bonded to the plastic of the hook in the same manner as described in. Paper is a laminate I was able to tear it from, but a veil of fine paper fibers remained on the plastic surface. The interesting thing about this laminate is that it touches the adhesive layer on the back of the hook tape. It can be activated by adding water to the dressing, making the hook laminate other than that. It was in the fact that this adhesive could be used to attach to the body. Formed in this way Activate a small area of the laminated body with your tongue like a postage stamp, and pour it into a pond. It could be easily attached to the object of. Suitable loops attached to other objects They were detachably attached to each other. Example XI Examples v or I using Escorene polyethylene without any additives Yet another laminate was made using the X extrusion configuration. In this laminate, the web introduced into the nip between the bottom roll and the molding roll is printed. It was a high-density polyethylene film. This film is of hook tape Laminated to the back, but with a relatively light force of less than 0.5 bonds per inch wide I was able to peel it off from. A particularly interesting aspect of this laminate is through the slightly opaque surface of the hook tape. The fact is that the print can be read clearly. HD poly with meso sage printed Ethylene addicted (without distortion, the original print message of the film It was just a little less sharp than. Example XII Printing Example XI Print road maps on both sides instead of polyethylene film The bottom of one page of Rand-McNalley Road At 1as made of paper Introduced into the nip between the roll and the forming roller. Paper is plastic / polyethylene · Tightly binds to the hook sort and separates from plastic unless the paper is torn I couldn't let go. The thin lines on the map form the hook tape. It could be seen through an opaque plastic film. Paper notebooks on both sides It was printed and I could read the map on the back of the hook sort. The other side Attach the assembly with printed matter to a display board with a loop material cover I was able to kick it. This combination attaches the display material to other objects Provided an interesting method. Conversely, a display with hooks that project outwards Make a face and read through hook tape to which an object can be attached You can also. In this way, the design shown on the display is passed through the hook. Display by reading and attaching loop material to exposed hooks Can cover each part of. Example XIII By arranging the equipment as described in the previous embodiment, Ferro Chemical Co Ferro HD PS0, a refractory polypropylene resin sold by mpany Treated polypropylene resin labeled as 250D. Melting temperature is 400 ° It was F (204 ° C), and the die ai 1 degree was 400'F (204 ° C). Rye The speed is 30 fpm (19,14 mmp) and the nip pressure is linear inches. It was 1500 bonds per. The process works to form a suitable hook product After that, a length of ether consisting of 0.065 inches (0,165 cm) thick A type of polyurethane foam was introduced into the nip between the bottom roll and the forming roller .. The foam stubbornly binds to the plastic on the underside of the hook sort, breaking the foam layer It couldn't be removed without breaking it. In the laminating process, the foam is considerably pressured Shrinked, but still firmly attached to polypropylene, polypropylene -Gives soft and elastic banking to the hook tape. This is made of hook It significantly changes the aesthetic and tactile sensations of the item. Submission of translation of amendment (Patent Law Article 184-8) February 15, 1994