JPH04146273A - Cloth containing collagen/gelatin - Google Patents

Abstract

PURPOSE:To obtain cloth having excellent handle and water vapor absorbing and releasing properties by uniformly kneading a moisture permeable resin with an aqueous solution or water dispersion of collagen, etc., to give a molded article of resin and bonding the molded article to woven or knit fabric or nonwoven fabric. CONSTITUTION:A moisture permeable resin (e.g. polyurethane resin) with has been difficult to blend is uniformly kneaded with an aqueous solution or water dispersion of collagen or gelatin to give a resin, which is molded into a filmy state to give a molded article of resin. The molded article of resin is bonded or applied to woven or knit fabric or nonwoven fabric to give cloth having excellent touch and functions of water vapor adsorption and release.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fabric used for clothing.
Specifically, the present invention relates to a fabric laminated or coated with a moisture-absorbing and desorbing resin.

BACKGROUND ART Conventionally, materials with moisture absorption and desorption properties include natural fibers such as natural leather, paper, pulp, and cotton, which are used in clothing, footwear, building materials, interior decoration materials, and the like. However, it has been desired that film molded products or coated products containing synthetic resin as a main component could be used as materials with moisture absorption and desorption properties or air permeability similar to natural leather. The main ones are shown below.

A powder obtained by crushing natural leather into fibers or a mixture of the natural leather powder and an organic polymer powder is fixed onto a base material via an adhesive, and then a thermoplastic resin is applied onto the powder coating layer. A method of applying resin is shown in JP-A-52-156901. Further, pseudo-natural leather made by mixing and integrating natural leather powder with a binding material such as synthetic rubber or thermoplastic resin is disclosed in JP-A-53-121902.

Shoe sole compositions in which glue or gelatin is mixed with a urethane resin material for shoe soles are disclosed in JP-A-61-164502. Furthermore, in an attempt to develop new uses for glue or gelatin, JP-A No. 61-168662 investigated the use of glue or gelatin as an additive for synthetic resins, and reported that it had various advantages as a shoe sole. It has been reported in Japanese Patent Publication No. 38472/1983 that adhesive properties of vinyl chloride resin compositions used for shoes were improved by mixing glue or gelatin.

A moisture-absorbing and desorbing composition comprising 20 to 150 parts of collagen or gelatin and 100 parts by weight of a synthetic resin and a method for producing the same are disclosed in JP-A-62-252459. He mentions that he obtained something effective as a radar board or parbubodo. In addition, regarding films molded from thermoplastic resin containing gelatin, Japanese Patent Application Laid-Open No. 63-15
No. 2642 and JP-A No. 63-152643, which disclose that gelatin is continuous between the surfaces of a thermoplastic resin or is induced onto the surface of the thermoplastic resin, thereby improving its suitability as a building material. Says.

However, when considering film-molded or coated products that are mainly made of synthetic resin as a material that can be used for clothing, there is no material that has moisture absorption or breathability like natural leather. .

Problems to be Solved by the Invention Film lamination or coating products have conventionally been processed using various synthetic polymers as binders, but they do not have the same water absorption, breathability, or It was unreasonable to use a stretchable material.

That is, in order to utilize these properties for forward movement, there was a problem in uniformly mixing collagen or gelatin.

Collagen or gelatin fine powders are intertwined with each other and have a flocculent appearance, and do not mix uniformly with the synthetic resin material, but exist as intertwined lumps in the resin molding, resulting in poor uniformity of the resin molding. However, there was a problem in that the physical properties of the resin molded product were extremely variable. In addition, various conventional synthetic polymers have problems in handling because they become more sticky as the thickness becomes thinner, making it difficult for them to exhibit slipperiness and easily increasing the frictional charging voltage.

Means for Solving the Problems In order to solve the above problems, the present invention has made intensive research on uniform mixing of collagen or gelatin, and has developed a method of kneading an aqueous solution or dispersion of collagen or gelatin into a moisture-permeable resin. It was possible to obtain a fabric in which a resin molded product obtained by molding these into a film was laminated to a #& fiber knitted fabric or a nonwoven fabric, or a woven or knitted fabric or nonwoven fabric was coated with the resin.

As the moisture-permeable resin, a school-grade moisture-permeable urethane resin can be used, i.e., polyurethane resin KRISBOYNYT-2.
0 (Dainippon Ink Co., Ltd. W), Heimlen ATX-10 <Dainichi Seika Co., Ltd. W), etc., and a method for uniformly dispersing collagen or gelatin in this wet resin will be described.

Collagen or gelatin, in resin and solvent,
Since the fine powders become intertwined with each other and form a flocculent shape, and are not mixed uniformly, collagen or gelatin should be made into an aqueous solution or water dispersion state and mixed into a moisture-permeable resin along with four particles that have an affinity for water. For example, it has become possible to uniformly mix collagen or gelatin into the resin.

Collagen or gelatin mixed into a resin has a moisture absorbing function and a moisture releasing function, so a resin molded product containing these functions comes to have these functions.

Examples Example 1 10 parts of dimethylformamide and 3 parts of methyl ethyl ketone
Create a mixed solvent of 0 parts and add 20% collagen aqueous solution 2
Mix 0 parts with stirring, and add this mixture to Crisbon N.
Mix and stir into 100 parts of YT-20 (Dainippon Ink Co., Ltd. 1f).

This collagen mixed resin liquid was formed into a film with a thickness of 7 to 10 μm (after drying) on release paper using a knife coater film forming machine. On this film, an adhesive having the following formulation was applied to a thickness of 15 to 20 μm (after drying) and bonded to polyester tricot having a basis weight of 150 g/−.

Heimlen Y119E (Dainichiseika Chemical Co., Ltd. II) 100 parts Rezashin NE (Dainichiseika Chemical Co., Ltd.) 7 parts Zamin H1-215 (Dainichiseika Chemical Co., Ltd.) 1 part dimethylformamide 5 parts Toluene
60 copies The fabric thus prepared was a laminate product with a soft and moist texture, and its physical properties were as follows.

Moisture permeability 5600 g/♂, 24H (JIS L10
99A-1 method) Water pressure resistance 3K g/c J or more (JIS L1
092B method) Peeling strength warp, weft 1000g or more (JIS L frictional charging voltage 250V or less (JIS L1094B method) Also, regarding hygroscopicity, a material without collagen from Example 1 was prepared as Comparative Example 1, and the moisture absorption of both The properties are measured and shown in Table 1.

This value of hygroscopicity is determined by cutting each sample into 5 x 5 cm pieces, leaving them in an atmosphere of RH 80-90% (20°C), measuring the weight of each sample over time, and calculating the average value of the five pieces. This is a value obtained by converting the mu change of 12 per unit.

Example 2 In a mixed solvent of 20 parts of methyl ethyl ketone and 18 parts of toluene, 100 parts of polyurethane resin Heimlen ATX-10 (Dainichiseika Co., Ltd. 1) was mixed and stirred. A 10% collagen aqueous solution 30B was added little by little to this mixed resin solution while stirring with a mixer so as not to separate the resin solution and the aqueous solution, thereby creating a W10 type emuldigon. Finally, 2 parts of crosslinking agent Rezamin X (manufactured by Dainichiseika Kaisha, Ltd.) was added and stirred uniformly.

This collagen mixed resin liquid was formed into a film on release paper using a comma coater film forming machine to a thickness of 7 to 10 μm (dry UK). On this film, an adhesive having the same formulation as in Example 1 was applied to a thickness of 15 to 20 μm (after drying), and the film was bonded to a polyester tricot having a basis weight of 200 g/rJ.

The fabric thus produced is a laminate product that has a moist texture and is easy to touch, and its physical properties are as follows.

Moisture permeability 6500i10! , 24H (JIS L10
99A-1 method) Water pressure resistance 1.5Kg/cr1! (JIS LIO
92B method) Peeling strength warp, latitude 750 g or more (JTS L1 frictional charging voltage 250 ■ or less (JIS L1094B method) Example 3 The collagen mixed resin solution prepared in Example 1 was coated with a comma coater to a basis weight of 250 g/rJ. It was coated onto a polyester fabric to a thickness of 20 to 30 μm (after drying).

The fabric thus prepared is a coated fabric with a moist feel, and its physical properties are as follows.

Moisture permeability 6500g/J, 24H (JIS L109
9A-1 method) Water pressure resistance 2.5Kg/c-rJ or more (J I S L
1092B method) Regarding hygroscopicity, in the same manner as in Example 1, a sample without collagen was prepared as Comparative Example 3, and the hygroscopicity of both was measured and shown in Table 2.

Table 2 Example 4 In the same manner as in Example 1, a film of collagen mixed resin liquid was formed on release paper, and an adhesive layer consisting of the following formulation was placed on top of this film.
After drying, it was coated with a comma coater to a thickness of 10 to 15 μm, and after drying to such an extent that some stickiness remained, it was pressed and bonded to cotton gauze.

Heimlen Y2O32 (manufactured by Dainichiseika Chemical Co., Ltd.) 100 parts Rezashin X-100 (manufactured by Dainichiseika Chemical Co., Ltd.) 2 parts Zamin H
1-215 (manufactured by Dainichiseika Chemical Co., Ltd.) 0.4 parts Methyl ethyl ketone 5 parts Use the fabric thus prepared as a wound dressing by rolling up release paper and applying the membrane side to the wound to apply a bandage. Unlike other replacements, it does not adhere to the wound and can be replaced without discomfort.

Example 5 As in Example 1, a film of collagen mixed resin liquid was formed on release paper, and as in Example 4, an adhesive layer was formed on the film so as to have a thickness of 10 to 15 μm after drying. Coat with a comma coater and dry to the extent that some stickiness remains, then apply the coating to 80g
/- to a rayon nonwoven fabric by pressure bonding. Similarly to Example 4, the fabric thus prepared can be replaced without discomfort when used as a wound dressing.

Effects of the Invention The present invention provides a resin molded product in which an aqueous solution or aqueous dispersion of collagen or gelatin is kneaded into a moisture-permeable resin, and the resin molded product is molded into a film, which is laminated to a woven or knitted fabric or a nonwoven fabric, or a resin molded product made of the resin. Collagen or gelatin is coated onto woven or non-woven fabrics by
It was uniformly dispersed in the resin molded product, did not have the disadvantage of flocculent agglomeration, and had a moist texture compared to the surface texture of conventional resins. Also, because it is hygroscopic, the frictional charging voltage is low.

The hygroscopic and moisture-wicking functions characteristic of collagen or gelatin can be imparted to textiles or non-woven fabrics for clothing. In addition, when collagen or gelatin absorbs moisture, it swells and has the function of naturally adjusting air permeability or moisture permeability at 11 o'clock when dry.

Claims (1)

[Claims] A resin molded product made by kneading an aqueous solution or dispersion of collagen or gelatin into a moisture-permeable resin and molding it into a film is attached to a woven or knitted fabric or non-woven fabric, or the woven or knitted fabric or non-woven fabric is coated with the resin. cloth.