KR910008861B1 - Polymer product having a fabric layer means and method of making the same - Google Patents

Abstract

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Description

Polymer product with fabric layer and its manufacturing method

Figure 1 shows a schematic perspective view of a partially cut cross section showing an enlarged polymer product.

2 shows a cross-sectional view of a circulated transmission belt structure using the polymer product of FIG.

FIG. 3 shows a cross-sectional view similar to FIG. 2 illustrating another type of belt utilizing the polymer product of FIG. 1.

4 shows a schematic perspective view illustrating another product of the invention using the polymer product of FIG. 1.

5 shows a schematic plan view of an improved method and apparatus of the present invention for producing the polymer product of FIG.

6 shows an enlarged schematic side view of the apparatus of FIG. 5.

7 shows a schematic diagram illustrating a part of the apparatus of FIGS. 5 and 6.

FIG. 8 shows an enlarged cross sectional view of line 8-8 of FIG.

FIG. 9 shows the similarity of FIG. 8 illustrating another embodiment of the present invention.

FIG. 10 shows the similarity of FIG. 8 illustrating another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

20: polymer product 24, 25, 43, 44: polymer layer

26, 28: flat plate 27, 29: the actual device

30, 31: outside 32: belt

38: stress portion 39: compression portion

40: load carrying part 42: polymer product

47, 49: strip 48: hose

50: vertical axis 51: apparatus of the present invention

52: tenter frame 61, 62: coating device

63: heating device 64, 65: doctor device

67 supply unit 68 supply rate (supply roll)

69 web 70, 71 coating device

75: polymer material

The present invention relates to an improved polymer product with a fabric layer and to a process for making such a polymer product.

Williams, U.S. Pat. It is shown to produce a polymer product having at least one polymer layer adhered to the layer.

It is a feature of the present invention to produce an improved polymer product having such one fabric layer and at least one polymer layer adhered to the fabric layer.

In particular, a woven structure in which a polymer layer, such as latex, is injected or coated, is used as encapsulant or reinforcement in circulated transmission belts and other products, such as V-belts, mainly toward the warp fill angle relative to the longitudinal axis of the belt. It has undergone a process of change.

For example, the warp or fill of the fabric was initially perpendicular to the longitudinal axis; The fabric is then cut at a 90 ° bias angle; Then cut at 120 ° bias angle; Today, it has a 120 ° biased bias without a seam.

This change in the polymer coated fabric was first to enhance the elasticity of the product.

However, according to the present invention, the three-dimensional shape of the flat weave of the fabric has not changed.

Enhancing the structural stretch or bend of the polymer coated fabric reduces the yarn density (Cover factor) in the fabric structure, reduces the torsion of the yarn system, increases the warp / fill angle and / or crosses It can be changed by reducing the number of over points.

Therefore, the change in the base fabric structure needed to optimize the elasticity.

Extending this stretch movement is directed towards systems that use unbundled thread bundles or fiber bundles in the fabric structure and to fabricate fabrics that exhibit the desired bias, but do not stitch yarn or fiber orientations such as by needle punching. stitch) so that they can be held together in three dimensions.

The result of this change, however, was the opposite of the goal, with reduced elasticity.

Furthermore, according to the present invention, a fabric layer can be provided in which the bias orientation is maintained while the three-dimensional function is lost.

This is achieved by using the polymer layer as the only fixing device effective between the yarns of the fabric layer to give elasticity to the fastening device of the fabric layer so that the resulting product has the desired structural elasticity or curvature.

For example, incorporating the present invention provides a polymer product having an opposite side and a fabric layer to which at least one polymer material is secured.

The fabric layer consists of a substantially flat first layer of yarn layer overlaid with a substantially flat second layer of yarn, so that the yarn of the first layer is not woven with the yarn of the second layer and the polymer material is the first layer of the yarn of the second layer. It is a fixing device for fixing the seal device of the device, thereby giving elasticity to the fixing device between the seal devices of the first and second layers.

It is therefore an object of the present invention to produce an improved polymer product having a fabric layer in which at least one polymer device is secured and the product of the present invention has one or more novel features as described above or below. .

Another object of the present invention is also directed to an improved process for preparing such products.

It should be appreciated that one or more of the several features of the present invention for producing products with polymer coated cloth layers may also be used to produce polymer products used for other purposes.

Therefore, the present invention is not limited only to one embodiment which can be used for various purposes in the drawings.

Referring to Figure 1 as follows.

An embodiment of the improved polymer product of the present invention is indicated by ″ 20 ″, has ″ 21 ″ and faces 22 and 23 facing each other, and consists of a layer of polymer coated fabric.

Likewise, the polymer product 20 has two polymer layers 24, 25 disposed on opposite sides 22, 23 of the fabric layer 21 and is intended to adhere to the fabric layer as described below. Soaked into 21.

The fabric layer 21 of the present invention is the actual device of the first layer 26 because the actual first flat plate 26 of the yarn device 27 is superimposed on the actual second flat plate 28 of the yarn device 29. Polymer 27 is the only fixing device for fixing the sealer 27 of the first layer 26 to the sealer 29 of the second layer 28 without being interwoven with the sealer 29 of the second layer 28. It is secured by layers 24 and 25, thereby giving elasticity to the fixation device between the first seal devices 27, 29 and the second layer 26, 28.

The polymer product 20 or polymer coated fabric layer of the present invention in this way comprises a fabric layer 21 in which the fabric layer 21 is woven in a conventional manner, as described in US Pat. Nos. 4,062,989 and 4,238,530. Rather, the U.S. patents may be subject to the teachings of the present invention as they will be able to increase the stretch or flexure of the structure more than that of the sewing or quilted structures as described in U.S. Patent No. 3,998,986. .

In particular, the polymer-coated fabric layer 20 of the present invention can be readily used as such and also known as another polymer product having one of the opposing outer surfaces 30, 31 fixed to the surface of the polymer product. It can be used for similar methods and purposes as in polymer coated fabric layers.

See, for example, US Patent Application No. 350,969, filed February 22, 1982 to Del Mar D. Long, an additional adhesive layer is provided on a polymer coated fabric layer for such fixing purposes.

The patent application also describes various uses of the polymer-coated fabric layer and its manufacturing method and apparatus, which will be described in more detail in the future, but may be subject to the present invention.

Referring to FIG. 2, another polymer product according to the present invention is indicated by " 32 ", which utilizes the polymer product 20 described above.

The polymer product 32 is a typical ″ V ″ shaped circulating transmission belt and the polymer portion 33 is an angled surface 36, 37 between the top and bottom surfaces 34, 35 facing side by side. The cross section is enclosed in a substantially trapezoidal shape.

The belt structure 32 has a stress portion 38, a compression portion 39 and a load carrying portion 40 between the stress portion 38 and the compression portion 39, and these portions 38, 39 and ( 40 is mainly made of polymer material.

As in the prior art, the surfaces 36 and 37 facing in an angled state of the belt portion 33 each have a friction layer made of a fabric impregnated with the polymer composition so that the friction layer is the surface thereof. It is secured thereon by having the entire outer surface of the belt portion 33 disposed only on (36) 37 or wrapped in a friction layer.

In either case, the belt structure 32 illustrated in FIG. 2 has a belt portion 33 completely enclosed by a strip of the fabric layer coated with the polymer of the present invention so that the opposite shape 40 of the layer 20 and 41 is superimposed and fixed as in the upper surface 34 of the belt portion 33.

This is a conventional technique for making belts.

When using the layer 20 of the present invention for manufacturing the belt structure 32 of FIG. 2, the faces 30, 31 are formed on the outer surfaces 34, 35, 36 and 36 of the polymer portion 33. Contacting (37) and allowing the elasticity of the polymer product (20) to more easily conform to the surfaces (34), (35), (36), and (37) so that the layer (20) can be After wrapping with 33), the polymer product 20 will stick to the belt portion 33 through the entire outer surface while the belt structure 32 is heat treated or thermoset.

In addition, the surfaces 30 or 31 of the polymer-coated fabric layer 20 of the present invention, which are fixed to the surfaces 34, 35, 36, and 37 of the belt portion 33, Covered with an additional adhesive layer of US Patent Application No. 350,969, filed Feb. 22, 1982, to secure firming therebetween.

However, the outer surface 30, 31 of the layer 20 of the present invention contacts the surface of the belt structure 32 at the driving surfaces 36, 37 while the fabric layer 21 is connected to the belt structure 32. It imparts the desired reinforcement properties and at the same time increases the elasticity due to the elastic bond between the first seals 27, 29 and the second layer 26, 28.

While the polymer layer coated 20 of the present invention has been described above as forming the outer surface of the belt product, the layer 20 of the present invention will not only form the outer surface but also create a portion of the inner layer of the desired belt product. Can be.

Referring to Figure 3 as follows.

The polymer belt body or product 42 of the present invention consists of a pair of polymer layers 43, 44 with faces 45, 46 secured to a strip 47 of layer 20 and polymer layer 43. It is fixed to the layer during the heat treatment or heat curing of the belt body 43 between the (44).

In addition, although the polymer-coated fabric layer 20 of the present invention is described as constituting a part of a belt or the like, there are other products that the fabric layer 20 can be used on its own or as a part thereof. You should know that

For example, the layer 20 of the present invention is a hose (denoted by reference numeral ″ 48 ″ in FIG. 4) as it has an elongated strip 49 of layer 20 that is secured or wrapped in a spirally overlapping manner. Can be manufactured with or without additional wire reinforcement.

Furthermore, the polymer coated fabric layer 20 of the present invention can be used as the product itself or by other products not described herein by printing blankets, gasket devices, etc., because the polymer coated fabric layer This is because the fabric layer of the present invention can be used where available.

The first layer 26 of the yarn device 27 of the polymer-coated fabric layer 20 is at a relative angle at the longitudinal axis of the layer 20, as acute at the longitudinal axis 50 as illustrated in FIG. It consists of two threads or strands, which are arranged and generally parallel to each other in a space or non-space of a desired shape.

The second layer 28 of the sealer 29 of the polymer-coated fabric layer 20 is formed of the layer 20 so that the first layer 26 intersects the sealer 27 at an angle of 90-120 °. It is arranged at a relatively obtuse angle in the longitudinal axis 50 and consists of two threads or strands or the like which are generally placed in parallel with each other in a space or non-space of a desired shape.

However, the angle between the seals 27, 29, 28 of the layer 26 can be as desired.

Furthermore, the seals 27, 29, 28 of the layer 26 may be formed of a single material or a mixture of suitable materials in which the seal devices 27, 29 are fixed, different or desired combinations. It is supposed to be.

The polymeric materials 24 and 25 may also be composed of suitable polymeric materials, such as latex, if similar, identical or different.

In any case, as described above, the polymer materials 24 and 25 are uniquely fixed between the seals 27 and 29 of the layers 26 and 28 so as to give elasticity to the fixing device. Along with the reinforcing properties of the silver weaving device 21, it not only gives the final product elasticity but also has a special shape for the final product, whether the hose 48 of FIG. 4 is produced or the belt shape of FIG. 2 or 3 is produced. Will be made easier.

Meanwhile, the polymer-coated fabric layer 20 of the present invention can be manufactured by any suitable method and apparatus, one of which is indicated as " 51 " in FIGS. 5, 6, and 7. .

Referring to FIGS. 5 and 6, the method and apparatus 51 have a tenter frame 52 similar to the tenter frame of the above-described US patent and application, which is suitable from left to right in FIGS. 5 and 6. It has two layers 26 and 28 of seals 27 and 29 placed therein at a desired angle so as to lie in a superimposed manner as illustrated in FIG.

For example, seals 29 for layer 28 are beam shaped from supply 53 in zone 54 where they are cut and placed across tenter frame 52 from one side 55 to another 56. Each seal device 29 extends from one face 55 to the other face 56 of the tenter frame 52 at a relatively desired angle with respect to the longitudinal axis 58 of the tenter frame 52.

Similarly, another beam of seal device 27 may be supplied 59 in zone 54 such that seal device 27 is angled so that it is cut across tenter frame 52 at the top of seal device 29. Can be supplied.

Seal devices 27 and 29 may be added continuously or intermittently from left to right through the remainder of the device 51 such that the overlapping layers 26 and 28 have the polymer devices 24 and 25. It can be delivered to the tenter frame 52 in a continuous or intermittent manner as can be.

In particular, after the layers 26, 28 have been laid in such a way as to overlap the tenter frame 52 to define the fabric layer 21, the tenter frame 52 is arranged on each side 22, 23 of each of the fabric layers 21. In order to apply the polymer sheath 24, 25 in liquid form to the seal 27 (as if passing between suitable coating devices 61, 62 respectively disposed on opposite sides of the tenter frame 52). 29) may extend outward in the region of ″ 60 ″ in FIGS. 5 and 6 to make it taut.

Thus, the fabric layer 21 can adhere to the seals 27 and 29 when the coatings 24 and 25 can be fixed to the faces 22 and 23 as well as being continuously dried by the drying device. It will soak into.

The drying apparatus is indicated by ″ 63 ″ in FIGS. 5 and 6.

However, before the coated fabric layer 21 passes through the heater 63, the coatings 24 and 25 are each suited to a suitable smoothing device 64 to define a relatively smooth outer surface 30, 31. Read by 65.

The tenter frame 52 is then tensioned such that the coatings 24, 25 are continuously maintained at least dry by the heating device 63. Expand the polymer-coated fabric layer in the region of ″ 66 ″ in FIGS. 5 and 6 to maintain it.

The heating device 63 is composed of a pot-like member and heated air so that the layer 20 passes from left to right so that the layer 20 exits through the heating device 63 and the coatings 24 and 25 are sufficiently formed. The seals 27 and 29 are held in a dry, assembled and encapsulated form.

If desired, a suitable chiller 67 is adapted to cool the layer 20 before the layer 20 is wound into the feed roll 68.

The feed roll 68 has a web 69 of material that winds the middle of the coil into the layer 20 to prevent the coils of the layer 20 from sticking in the feed roll 68.

Therefore, it can be seen that the method of the invention is relatively simple in producing a polymer coated fabric layer or product 20 than other known methods.

However, the method and device 51 of the present invention have seal device 27 on top of seal device 29 in zone 54 without providing any fixing device therebetween, so that liquid coating (see FIG. The shape of the stacked apparatus is shown when 24) 25 is applied thereto.

One or both layers 26 and 28 of the seals 27 and 29 may be precoated so as to be in contact with a liquid polymer material such as latex or a layer of seals 27 and 29 ( 26) and (28) may be made before one or both overlaps the tenter frame 52 around it.

For example, the polymer coating 72 may only be applied to the surfaces 73 and 74 of the seal devices 27 and 29 that the coating devices 70 and 71 come into contact with each other in the manner illustrated in FIG. Each can be provided for the seals 27 and 29 for application.

The polymer device 72 will thus provide sufficient adhesion means to hold the seal devices 27 and 29 together while passing through the coating devices 61 and 62 in the device 51.

In this way, the coatings 24 and 25 together with the coating 72 form a polymeric material that secures the seals 27 and 29 in the final product.

However, the layer or polymer product 20 of the present invention may be coated with additional coating such that the polymer material 72 installs an effective fixation device to secure the layers 26 and 28 of the seals 27 and 29. It can be considered to have a cross-sectional shape that looks like the structure illustrated in FIG.

As a result, the devices 70 and 71 for applying the polymer are shaped so that the seal devices 27 and 29 are completely covered with the polymer material 75 as illustrated in FIG. 10. When superimposed on tenter frame 52, the resulting structure will have the shape illustrated in FIG. 10 and if desired, coatings 24 and 25 are subsequently fixed by coating devices 61 and 62. Will be.

In this way the coatings 24 and 25 together with the coating 75 form a polymer device that secures the seal devices 27 and 29 in the final product.

However, as described above, the coatings 24 and 25 provide an effective fixing device for securing the seal devices 27 and 29 in the manner illustrated in FIG. 10 by the polymer material 75 providing only the polymer material. It would not be necessary to produce the layer or polymer product 20 of the present invention.

One of the coatings 24 and 25 also penetrates sufficiently into the fabric layer 21 to secure the seals 27 and 29 together if the precoated 72 or 75 is not used. As is necessary, the product 20 of the present invention needs to be prepared.

Therefore, there can be various methods and apparatus for producing the layer 20 of the present invention having the unique features described above.

Thus composed of fabric layer 21, there are opposing faces 22, 23 and at least one polymeric material 72, 75, 24 and / or 25 is provided in fabric layer 21. Securing: The fabric layer 21 is made of the first substantially flat layer 26 of the yarn device 27 that overlaps the substantially second flat layer 28 of the yarn device 29. The present invention provides a relatively simple device for producing a polymer-coated fabric layer or polymer product 20 of the present invention in which the yarn device 27 of 26 is not woven with the yarn device 29 of the second layer 28. It is.

Polymeric materials 72, 75, 24, and / or 25 may be used to secure the fixture 27 of the first layer 26 to the fixture 29 of the second layer 28. This gives elasticity to the fixing device between the seal devices 27 and 29 of the first and second layers 26 and 28.

Although the product 20 of the present invention has been described above as having seal devices 27 and 29 separated from each other before the polymer material is added, the seal devices 27 and 29 are sewing threads which are dissolved after the polymer material is added. By being sewn in large quantities, the polymeric material to be added continuously can provide an effective fixing device.

In addition, the seals 27 and 29 are placed in the same place as in the polymer belt zone so that another polymer belt zone is added thereon so that the seal devices 27 and 29 in which the continuous heat treatment operation is fixed together with the polymer material. At least one belt portion should be permeated into the seals 27 and 29 in order to provide an effective fastener without.

As described above, the seals 27, 29, polymer materials 24, 25, 72, and 75 may be made of any suitable material or combination thereof.

It is also described to dry the coatings 24, 25, 72 and / or 75, which keeps the heating device 63 to the extent that the seals 27, 29 are fixed to each other. The coating is allowed to dry, without heat treatment of coatings 24, 25, 72 and / or 75, as in the aforementioned US patents and patent applications, while such coatings produce a desired final product. It can be done continuously.

However, the heating device 63 may heat the coatings 24, 25, 72 and / or 75 as the final product heats the layer 20.

Thus, the present invention describes not only the preparation of improved polymer products, but also a method for making such polymer products.

Although the method and apparatus of the present invention have been illustrated in the drawings by way of example only for carrying out the present invention, other forms of products or methods that can utilize the present invention are also within the scope of the present invention.

Claims (15)

Since the fabric layer 21 is the substantially first flat layer 26 of the yarn device 27 overlaid with the substantially second flat layer 28 of the yarn device 29, the yarn device of the first layer 26 ( 27 is not woven with the sealer 29 of the second layer 28 and the polymer materials 24, 25, 72, and 75 have a sealant 29 of the second layer 26. There is a fastening device for fixing the seal device 27 of the first layer 26, thereby giving elasticity to the lock device between the seal devices 27, 29 of the first and second layers 26, 28. And a fabric product having opposite sides and at least one polymeric material adhered to the fabric layer. The method of claim 1, wherein the polymeric materials 24, 25, 72, 75 are at least a portion of the seal 27 of the first layer 26 and at least a portion of the seal 29 of the second layer 28. A polymer product, characterized in that it has at least one part disposed therebetween. 2. Polymer product according to claim 1, characterized in that the seal device (27) of the first layer (26) consists of two strand devices arranged side by side in parallel. 4. Polymer according to claim 3, characterized in that the seal device 29 of the second layer 28 consists of two strand devices arranged side by side in parallel with an angle relative to the strand device 27 of the first layer 26. product. 5. The device of claim 4, wherein the fabric layer 21 is the longitudinal axis 50, the strand device 27 of the first layer 26 crossing the axis 50 at an acute angle with respect to it, an obtuse angle with respect to the axis. A polymer product, characterized in that it consists of a strand device (29) of a second layer (28) intersecting an axis (50) at an angle. The fabric layer of claim 1 wherein the polymer layer is comprised of a layer of polymer material 24 lying on one of the faces 22, 23 of the fabric layer 21 and defines at least a portion of the fixation device. A polymer product, characterized by being permeated into (21). 7. A layer according to claim 6, wherein the polymer layer consists of a layer of polymer material (25) lying on the other of the sides (22) and (23) of the fabric layer (21) and to define at least another part of the fixation device. A polymer product, characterized in that it is permeated into the fabric layer (21). The device of claim 1, wherein the polymer layer is first placed in a seal device (27) (29) of one of the first and second layers (26) (28) before the first layer (26) overlaps with the second layer (28). And a polymeric material (72). The polymer product according to claim 1, wherein the product is a power transmission belt circulated. The polymer product of claim 1 wherein the product is a paper-like strip of fabric material and a polymeric material. 2. The polymer product according to claim 1, wherein the polymer product is in the form of a paper-like strip that is attached to the surface of the polymer body (33) (43) (44). 12. The polymer product according to claim 11, wherein the product constitutes a transmission belt through which the product is circulated, the surface of the main body 33 constitutes the outer surface of the main body, and paper-like strips define the outer surface of the belt. . 12. A transmission belt according to claim 11, wherein the product constitutes a power transmission belt circulated, the surfaces of the bodies (43) (44) constitute the inner surface of the body and the paper-like strips define the inner portions (47) of the belt. A polymer product, characterized in that. Creating the fabric layer consisting of a substantially first layer of yarn laid over a substantially second flat layer of yarn and the yarn of the first layer is not woven with the yarn of the second layer but is bonded to the yarn of the second layer. There is an opposite side and at least one polymer layer is secured, by producing a polymer layer as a fixing device for fixing the seal device of the first layer to impart elasticity to the fixation device between the seal devices of the first and second layers. Method for producing a polymer product having a fabric layer. A method of making a polymer product having a fabric layer having opposite sides and having at least one polymer layer fixed thereon, the method comprising forming a fabric layer consisting of a substantially first flat layer of yarn and a substantially second flat layer of yarn. The first by having each layer of the seal device consist of several strand devices which are generally arranged in parallel without being interconnected and the first layer of the seal device arranged in such a way as to overlap the second layer of the seal device. The seal device of the layer is not woven with the seal device of the second layer, and then the polymer layer is created as the only fixing device for fixing the seal device of the first layer to the seal device of the second layer, so as to first produce the polymer material in liquid form. At least one of the overlapping layers to infiltrate the overlapping layers Placement with respect to the face and then drying the soaked polymer material so as to support the strand device of the layer, which is generally arranged in parallel, gives flexibility to the fixing device between the seal devices of the first and second layers. Characterized in that.

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