JP2003055880A - Composite material for clothes and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite material having elongation, softness and heat retaining properties and suitable as sewing machine sewable wet suits. SOLUTION: This composite material for clothes is obtained by forming a film 2 composed of a gelled material of a thermoplastic elastomer on the surface of a stretchable fabric 1b of a substrate 1 composed of a natural or a synthetic rubber elastic foam 1a having the stretchable fabric 1b applied to at least one surface thereof.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to wetsuits and drysuits for marine sports such as diving, diving, surfing and triathlon, wetsuits and tights for fishing, and boots with a trunk used in the aquaculture industry. The present invention relates to a composite material having a thin plate-shaped rubber elastic foam as a base material for obtaining clothes and footwear suitable for wearing in work or sports in cold water.

[0002]

2. Description of the Related Art As a material for wet suits worn in diving, surfing, windsurfing, fishing, etc., chloroprene rubber sponge (foam) is used as a base material, and one or both sides of the material are made of fibers such as nylon, polyester or polypropylene. The one to which the following fabric is attached is used. When a material in which the above-mentioned cloth is attached to one surface of a sponge base material is used, the cloth surface may be outside or inside, but the wet suit made with the cloth surface outside. However, when it gets wet with water, the body heat is affected by the heat of vaporization on land, and it is extremely cold and difficult to wear, especially in winter.

Further, in a wet suit made of a material in which a cloth is attached to one surface of the above-mentioned sponge base material, and the sponge surface is on the outside, the heat of vaporization does not dissipate the body temperature, so that it is not cold. Although it can be prevented, there are problems such as weak strength of the material and limitation of coloring.

As a material for a wet suit, it is also possible to use a stretchable cloth such as a jersey attached to a chloroprene rubber sponge (foam) base material and a chloroprene latex or NBR latex applied with a brush. , Unless it is applied 6 times,
It cannot be used as a material for wetsuits, and the stretchability of the jersey is impeded by the coated latex layer, so that the elongation required for wetsuits cannot be obtained.

[0005] Further, there are some materials in which synthetic leather obtained by coating a polyurethane resin on a stretchable jersey is attached to the surface of a chloroprene rubber sponge, but peeling of the synthetic leather occurs during wearing as a wet suit. However, there is an adverse effect that water that has soaked into the middle jersey becomes a stain due to a capillary phenomenon, and this causes peeling.

Further, there is a material in which a polyurethane film is adhered to the chloroprene rubber sponge surface with an adhesive and the film surface is embossed to give fine irregularities, but since it does not have a cloth surface, it is a wet suit. It has been pointed out that it is difficult to sew a sewing machine when it is processed into, and it is easily scratched and the damage spreads easily.

[0007]

SUMMARY OF THE INVENTION In view of the above, the present invention solves the above-mentioned problems of the material for wet suits, and has performances such as flexibility, stretchability, toughness, and water repellency, and It is an object of the present invention to provide a composite material that can be easily sewn into a wet suit or the like.

[0008]

The invention according to claim 1 is characterized in that the surface of the elastic cloth of a base material made of natural rubber or synthetic rubber elastic foam having elastic cloth adhered to at least one surface is heated. A composite material for clothing having a film formed of a gel of a plastic elastomer is featured.

According to a second aspect of the present invention, in the first aspect of the invention, the synthetic rubber elastic foam is chloroprene rubber, isoprene rubber, butyl rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber, ethylene-propylene rubber, It is characterized in that it is a kind of synthetic rubber elastic foam selected from the group of chlorosulfonated polyethylene rubber.

A third aspect of the present invention is characterized in that, in the first aspect of the present invention, a woven fabric, a knitted fabric or a knitted fabric woven using synthetic fibers is used as the elastic fabric. The invention is characterized in that, in the invention of claim 1, the thermoplastic elastomer is a styrene block copolymer or an olefin block copolymer.

The composite material for clothing according to the first aspect of the present invention comprises a base material made of natural rubber or synthetic rubber elastic foam having a stretchable cloth attached to one surface thereof, and a thermoplastic elastomer on the surface of the stretchable cloth. By forming a film made of a gel-like material, this film exhibits greater elongation than the stretchable fabric and rubber elastic foam that make up the base material, and its low modulus also results in a composite for clothing such as wet suits. In addition to having the required physical properties such as elongation, strength, flexibility, and heat retention, the stretchable fabric is interposed between the rubber elastic foam and the thermoplastic elastomer on the surface, making it suitable for wet suits. It is possible to sew a sewing machine when manufacturing.

According to a fifth aspect of the present invention, a thermoplastic elastomer gel material is directly applied to a base material made of a natural rubber or synthetic rubber elastic foam having at least one surface adhered with a stretchable cloth and dried. And a method for producing a composite material for clothing, wherein a film is formed on the surface of the elastic fabric.

According to the manufacturing method of the fifth aspect, since the thermoplastic elastomer gel material diluted with the solvent is directly applied to the surface of the stretchable cloth of the substrate and dried at room temperature, the manufacturing process is simple. Moreover, since this application can be performed by casting or spraying, a coating film having a desired thickness can be obtained by one application.

The invention according to claim 6 is characterized in that, in the invention according to claim 5, the thermoplastic elastomer gel-like material is used in a state of being melted by heat. A coating film having a desired thickness can be obtained by a single application using a mold or extrusion, and drying after the application is performed only by cooling the applied melt at room temperature, and the film can be formed by a simple process. .

According to a seventh aspect of the present invention, a thermoplastic elastomer gel material applied to a release paper is applied to a base material made of natural rubber or synthetic rubber elastic foam having at least one surface on which a stretchable cloth is attached. It is a method for producing a composite material for clothing, in which a film is formed on the surface of the elastic cloth by transferring before the drying.

The invention of claim 8 is characterized in that, in the invention of claim 7, the thermoplastic elastomer gel material applied to the release paper is dried and then thermally transferred to a substrate.

According to the method of claims 7 and 8, the thermoplastic elastomer gel is applied to the release paper and then transferred to the base material, and the thickness of the thermoplastic elastomer coating film can be adjusted arbitrarily. Can be done.

According to a ninth aspect of the present invention, a thermoplastic elastomer gel is formed by applying a release paper to a base material made of an elastic foam of natural rubber or a synthetic rubber having a stretchable cloth attached to at least one surface thereof and drying the release paper. This is a method for producing a composite material for clothing, which comprises forming a coating on the surface of the stretchable cloth by adhering the elastic material with an adhesive having the same components as the thermoplastic elastomer gel material.

According to the method of claim 9, since the coating film of the thermoplastic elastomer applied to the release paper and dried is attached to the base material via the adhesive of the same component, the adhesion to the base material is improved. Can be improved.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The composite material for clothing of the present invention will be described below. The basic constitution of the composite material A for clothing of the present invention is, as shown in FIG. 1 as a cross-sectional shape thereof, a natural or synthetic rubber elastic foam 1a and a woven fabric of synthetic fibers adhered to at least one surface thereof. This is a structure in which a film 2 made of a thermoplastic elastomer gel is formed on the surface of the stretchable fabric 1b of a base material 1 made of a stretchable fabric 1b which is a knitted fabric or knitted fabric.

In the above structure, the rubber elastic foam 1a
Is 0.5 to 10 mm thick, and the stretchable fabric 1b is 0.3 to 1.
The thickness of 0 mm and the thickness of the coating film 2 made of the thermoplastic elastomer gel material is preferably 0.2 to 5.0 mm.

With the above-mentioned structure, not only is it possible to sew a sewing machine when using the composite material A for clothing of the present invention to obtain a wet suit, the outermost surface is stretched and the flexibility is improved. Since it is made of a certain thermoplastic elastomer film 2, even if the surface of the product such as a wet suit is scratched when it is manufactured or worn, it can be easily repaired by heat fusion with an iron or melt fusion with a solvent. . Further, since the thermoplastic elastomer can be freely colored, it is possible to obtain not only black but also a beautiful wet suit.

In the composite material A of the present invention, among the elastic foams 1a of natural rubber or synthetic rubber used as the main material constituting the substrate 1, synthetic rubber-based elastic foams include chloroprene rubber, isoprene rubber, Butyl rubber,
Styrene-butadiene rubber and ethylene-propylene rubber are available. Among them, chloroprene rubber elastic foam is most suitable for practical use.

As the stretchable cloth 1b attached to at least one surface of the rubber elastic foam 1a, a woven fabric made of synthetic fibers, a knitted fabric or a thin fabric made of a knitted woven fabric is used. Among them, a jersey is used. A thin cloth is most preferable in terms of stretchability.

The elastic cloth 1b may be attached to the upper surface of the rubber elastic foam 1a by using a solvent type or emulsion type adhesive containing natural rubber or synthetic rubber as a main component.

In obtaining the composite material A for clothing of the present invention, a styrene-based block copolymer is used as a thermoplastic elastomer for forming the elastic film 2 on the elastic foam substrate 1 to which the stretchable fabric 1b is attached. A coalesced or olefinic block copolymer is used. This styrene-based or olefin-based block copolymer thermoplastic elastomer means a monounsaturated or diunsaturated aliphatic hydrocarbon monomer (for example, butadiene, isoprene, ethylene, propylene, butylene, etc.) as at least the soft segment.
It means a block copolymer containing a polymer segment obtained from the above and further containing a polystyrene segment or a polyolefin segment as a hard segment. In the case of the diunsaturated aliphatic hydrocarbon monomer (isoprene, butadiene), it further includes a hydrogenated polymer segment.

Examples of the styrene block copolymer include polystyrene-hydrogenated polyisoprene block copolymer, polystyrene-polybutadiene block copolymer, polystyrene-polyisoprene block copolymer, polystyrene-hydrogenated polybutadiene block copolymer. Examples include coalescence. And these can be used individually or in mixture, Among them, polystyrene-hydrogenated polyisoprene block copolymer is preferable.

Examples of the olefin block copolymer include polyethylene-ethylene-propylene rubber (EPR) block copolymer and polypropylene-EPR.
Block copolymer, polyethylene-ethylene-propylene-diene rubber (EPDM) block copolymer, polypropylene-EPDM block copolymer, polybutylene-
There are EPR block copolymers and the like, and these can be used alone or in combination.

The above-mentioned thermoplastic elastomers of styrene block copolymers or olefin block copolymers for forming an elastic film by coating on an elastic foam substrate to which a stretchable cloth is adhered are toluene,
It may be used in the form of a gel-like substance dissolved and diluted with an aromatic hydrocarbon solvent such as xylene, or in the form of being heat-melted with paraffin oil or the like. The method (coating) for applying the thermoplastic elastomer in such a form to the substrate may be selected from casting, dipping, spraying, roll coating and the like according to the desired coating thickness.

In another embodiment, the composite material for clothing of the present invention is obtained by dissolving a thermoplastic elastomer in an aromatic hydrocarbon solvent such as toluene or xylene, or by heat-melting it with a paraffin oil or the like, and foaming it. A low-boiling hydrocarbon microcapsule type foaming agent is blended as an agent, this thermoplastic elastomer liquid is applied to release paper to form a thermoplastic elastomer film, and a stretchable cloth is abutted on both sides of this film. By performing hot press molding, it is possible to perform foaming of the thermoplastic elastomer film and also melt bonding of the stretchable fabric and the foam on both sides, and to obtain a rubber elastic foam for a wet suit of an integral molding type. You can do it.

The low-boiling hydrocarbon microcapsule type foaming agent described above has a softening point in the range of about 110 to 140 ° C., for example, methyl methacrylate-acrylonitrile-.
Microcapsules having a particle size of 20 to 40 μm in which isobutane, isopentane, isooctane and the like are enclosed as a foaming agent in an outer shell made of a methacrylonitrile terpolymer may be used. Expancel, trade name of Expancel, Inc. is preferred.

[0032]

EXAMPLES The present invention will be described in detail below with reference to examples. Example 1 A jersey fabric having a thickness of about 0.5 mm, which is a stretchable thin cloth, was attached to one surface of a thin plate-shaped chloroprene rubber sponge having a thickness of about 2 mm via a chloroprene rubber adhesive to obtain a base material, Separately, polystyrene-hydrogenated polyisoprene block copolymer (Kuraray Plastic Co., trade name Septon S
C-693) A gel of the copolymer prepared by adding 200 parts of toluene to 100 parts of C-693 was coated on the above substrate with a roll coater, and dried at room temperature for about 12 hours to obtain a composite material for clothing. It was

Example 2 100 parts of polystyrene-hydrogenated polyisoprene block copolymer (Septon SC-693) was mixed with 150 parts of paraffin oil to obtain a gel product of the copolymer. The gel product was heated to 200 ° C. After heating and melting, a thin chloroprene rubber sponge with a thickness of about 2 mm is attached to one surface of a jersey fabric with a thickness of about 0.5 mm, which is a stretchable thin cloth, via a chloroprene rubber adhesive. The above-mentioned melted gel-like material was coated on a base material with a roll coater at 150 ° C. and dried at room temperature for about 1 hour. As a result, a composite material having an elastic coating of 0.2 mm thickness on the base material was obtained. Was obtained.

Example 3 A gel of the copolymer prepared by adding 200 parts of toluene to 100 parts of polystyrene-hydrogenated polyisoprene block copolymer (Septon SC-693) was coated on a release paper to a thickness of about 0.2 mm. After that, a thin chloroprene rubber sponge substrate with a stretchable thin cloth (jersey fabric) attached to one side with a chloroprene rubber adhesive is coated with the gel-like coating on the release paper on the stretchable thin cloth surface. It was transcribed. After the transfer, the composite material was obtained by drying at room temperature for 12 hours.

Example 4 100 parts of polystyrene-hydrogenated polyisoprene block copolymer (Septon SC-693) was mixed with 150 parts of paraffin oil to obtain a gel-like product, which was heated to 200 ° C. to obtain a melt. About 0.3m of melt on release paper
After applying it to a thickness of m, the stretchable thin cloth (jersey woven fabric) is attached to one surface of this coated material with a chloroprene rubber adhesive on the stretchable thin cloth surface of the thin plate-like chloroprene rubber sponge base material. The transfer was performed, and the composite material was obtained by cooling and drying at room temperature for 1 hour.

Example 5 Polystyrene-hydrogenated polyisoprene block copolymer (Kuraray Plastic Co., trade name Septon KC-14)
A gel of the copolymer prepared by adding 200 parts of toluene to 100 parts of 5A) was coated on a release paper and dried at room temperature for about 6 hours to obtain a film having a thickness of about 0.3 mm. Next, this film was transferred onto a stretchable thin cloth surface of a thin plate-like chloroprene rubber sponge substrate to which a stretchable thin cloth (jersey woven fabric) was attached under a transfer condition of 200 ° C. for 10 seconds. After the transfer, the release paper was peeled off to obtain a composite material.

Example 6 100 parts of polystyrene-hydrogenated polyisoprene block copolymer (Septon SC-693) was mixed with 100 parts of paraffin oil to obtain a gel-like product which was heated to 200 ° C. to obtain a melt. About 0.2 mm of melt on release paper
After coating so as to have a thickness, it was cooled at room temperature for about 1 hour to obtain a film. The obtained film was transferred to a stretchable thin cloth surface of a thin plate-like chloroprene rubber sponge substrate to which a stretchable thin cloth (jersey woven fabric) was attached under a transfer condition of 130 ° C. for 10 seconds. After the transfer, the release paper was peeled off to obtain a composite material.

Example 7 Polystyrene-hydrogenated polyisoprene block copolymer (Septon KC-145A) 100 parts toluene 200
The gel-like substance of the copolymer prepared by adding the above parts was coated on a release paper and dried at room temperature for about 6 hours to obtain a film having a thickness of about 0.3 mm. Then, this film is applied to a thin chloroprene rubber sponge base material having a stretchable thin cloth (jersey woven fabric) adhered thereto, on the stretchable thin cloth surface of the same type of polystyrene-hydrogenated polyisoprene block copolymer, Septon SC-.
693) 100 parts were stuck together using an adhesive obtained by dissolving 200 parts in toluene, and dried at room temperature for 6 hours to obtain a composite material.

Example 8 100 parts of polystyrene-hydrogenated polyisoprene block copolymer (Septon SC-693) and 200 parts of toluene
Parts, 100 parts of paraffin oil and 5 parts of a microcapsule foaming agent (manufactured by Expancel Co., Ltd., Sweden, trade name: Expancel 092) were added to prepare a gel-like product. Next, this gel-like material is applied to a release paper, a jersey fabric is placed on the release paper and dried at room temperature for about 6 hours to obtain a copolymer film having a thickness of about 1 mm and having a jersey fabric on one side. It was Then, the resulting film was peeled from the release paper, and the jersey fabric was also brought into contact with that surface,
When press-molded at about 140 ° C. for 5 minutes, the film foamed to a thickness of about 2.5 mm, and an elastic foamed composite material having jersey fabric adhered on both sides was obtained.

[0040]

As described above, the composite material for clothing according to the present invention has a stretchable cloth surface of a base material made of natural rubber or synthetic rubber elastic foam having a stretchable cloth stuck to at least one surface. By forming a film made of a gel of a thermoplastic elastomer on this, this film shows a greater elongation than the stretchable fabric or rubber elastic foam that constitutes the substrate, and because the modulus is low, the wet suit In addition to having the physical properties such as elongation, strength, flexibility, and heat retention required for such composite materials for clothing, since the elastic cloth is interposed between the rubber elastic foam and the thermoplastic elastomer of the surface layer. It has the feature that it can be sewn with a sewing machine when manufacturing wet suits and the like, and is of great practical value as a composite material for wet suits.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing a main configuration of a composite material for clothing according to the present invention.

[Explanation of symbols]

A composite material 1 base material 1a Rubber elastic foam 1b Stretchable fabric 2 Thermoplastic elastomer film

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 4F100 AK03J AK12J AK29B AK64B                       AK73B AL02C AL09C AN01B                       AN02B BA03 BA07 BA10B                       BA10C CB00 DG11A DG12A                       DG13A DJ01B GB72 JB06                       JB16C JK01 JK08A JK17                       JM10C                 4L033 AA04 AB05 CA12 CA13 CA68

Claims (9)

[Claims] 1. A film made of a gel of a thermoplastic elastomer is formed on the surface of a stretchable cloth of a substrate made of a natural rubber or synthetic rubber elastic foam having a stretchable cloth attached to at least one surface thereof. A composite material for clothing. 2. A synthetic rubber elastic foam is one kind of synthetic rubber selected from the group of chloroprene rubber, isoprene rubber, butyl rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber, ethylene-propylene rubber, and chlorosulfonated polyethylene rubber. An elastic foam body.
Composite material for clothing described in. 3. The composite material for clothing according to claim 1, wherein the stretchable fabric is a woven fabric, a knitted fabric or a knitted fabric woven using synthetic fibers. 4. The composite material for clothing according to claim 1, wherein the thermoplastic elastomer is a styrene-based block copolymer or an olefin-based block copolymer. 5. A thermoplastic elastomer gel material is directly applied to a base material made of natural rubber or synthetic rubber elastic foam having at least one surface on which an elastic cloth is adhered and dried to form a film on the surface of the elastic cloth. A method for producing a composite material for clothing, characterized in that: 6. The method for producing a composite material for clothing according to claim 5, wherein the thermoplastic elastomer gel material is used in a state of being melted by heat. 7. A thermoplastic elastomer gel material applied to release paper is transferred to a base material made of natural rubber or synthetic rubber elastic foam having at least one surface adhered with a stretchable cloth before drying. A method for producing a composite material for clothing, characterized in that a film is formed on the surface of the elastic cloth by the above. 8. The film according to claim 7, wherein the thermoplastic elastomer gel material applied to the release paper is dried and then thermally transferred to a substrate to form a film on the surface of the elastic cloth. A method for manufacturing a composite material for clothing. 9. A thermoplastic elastomer gel-like material obtained by applying a release paper to a base material made of a natural rubber or synthetic rubber elastic foam having a stretchable cloth adhered on at least one surface and drying the base material. A method for producing a composite material for clothing, characterized in that a film is formed on the surface of the stretchable cloth by sticking the same with an adhesive having the same components as the gel material.