JPS58203172A - Fabric having moisture permeability and waterproofness and production thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moisture-permeable and waterproof fabric suitable for casual wear, active sportswear, and cold-weather clothing, and a method for manufacturing the same.

Conventionally, methods for stretching waterproof fabrics include dry coating method or lamy coating of C:1 urethane film.
In this method, high water pressure resistance can be obtained by tearing a thin film on a fiber base, but since it is not moisture permeable, sweat that sweats after several floors of wear, etc.
This film has the disadvantage that water 4X air is trapped and does not evaporate, making it stuffy and uncomfortable to wear. For this reason, conventionally,
It has been proposed to use a foaming agent or create tiny holes in the film surface using a special method to completely block large objects such as raindrops and allow small objects such as water vapor to pass through. Products using foaming agents have the disadvantage that the holes are large and can become clogged with contaminants when washed.On the other hand, wet methods for creating holes require the use of heat in the manufacturing process because the solvent is replaced with water. -, water treatment is required, and it has the drawbacks of poor light resistance and elasticity.

The purpose of the present invention is to eliminate the drawbacks mentioned above and to propose a fabric that has drapability and flexibility suitable for clothing by a dry process, and also has the functional aspects of moisture permeability and waterproofness, and a method for producing the fabric. In other words, the third invention is T.
, a moisture-permeable and waterproof fabric laminated or coated with a moisture-permeable urethane resin mainly composed of riether glycol, polyester glycol, or a mixture thereof; Regarding the method, a urethane resin layer containing polyether glycol, a numbered polyester glycol, or a mixture thereof as a lower main component is used to form this urethane resin layer on a release paper, and the urethane resin layer is formed on a release paper. After applying gold mold adhesive to the resin layer and bonding it to the fiber base material via the adhesive, the release paper is peeled off to form a urethane resin layer on the fiber base material. This is a method for producing fabrics with characteristic moisture permeability and waterproof properties.

In the present invention, as the urethane resin used in the surface temporary layer (7), polyether glycols such as 4ζ lyethyl glycol, polypropylene glycol, polytetramethylene glycol, etc. Polyester glycols such as lene adipate diol, polybutylene adipate diol, f, opentyl adipate diol, polyhexamethione adipate diol, or mixtures thereof, with an aliphatic incyanate and a trifunctional chain extender are used in mJ. The urethane resin synthesized in dimethylformamide, dimethylsulfoxide, dioxane, toluene, MEK1 ethyl acetate, tetrahydrofuran, etc. alone or in a mixture thereof was used.

In addition, the urethane resin used in the adhesive is polyester glycol, riether glycol, or a mixture of aliphatic isocyanates and difunctional stretchers, and toluene. , MEK, and ethyl acetate alone or in a composite. When the strength of the resin alone was low, an aliphatic polyisotope and a metal catalyst were used.

The release paper used was polypropylene or silicone type.

The thickness of the surface coating layer is 1.5-50 microns, and the viscosity of the N contact agent is 30 = 200 voids per week. This is because if the thickness of the surface coating layer and adhesive layer is less than S thickness, the film strength will be low, and if it is more than 70 microns, the moisture permeability will be low and undesirable, and if the viscosity of the adhesive layer is less than 50 microns, it is undesirable. In this case, the adhesive penetrates deeply into the structure of the fiber-based woven or knitted fabric, causing the resulting processed fabric to harden, impairing its drapability and flexibility, and making it difficult to apply the adhesive if its viscosity exceeds 200 voids. This is because the drapeability and flexibility of the resulting laminated fabric are impaired without making it difficult to measure.

The surface coating layer and the adhesive layer used in the present invention may contain a tar pigment, a dye phase, a pore-forming agent, a weathering agent, a gas coloring inhibitor, and the like.

Next, the present invention will be explained in detail.

[Example 1] As the surface coating layer resin, polybutylene adipate diol with an average molecular weight of M2O00, 2oo y, and an average molecular weight of m r
ooo polyethylene glycol 200 ff 323
Then, a prepolymer solution having hexamethylene diisocyanate groups was obtained.

Next/amino-3 aminomethyl-3, S, S, trimethyl shift o bequinine I12.3 f f D M F
The above prepolymer solution was gradually added to the solution dissolved in 741'41' to obtain a urethane resin having a resin # degree of 30% and a viscosity of 700 viscosity.

In addition, polybutylene adipate diol 2001 with an average molecular weight of 1000 and average molecular weight M 200 were used as adhesive layer resins.
0°C polyneopentyl adipate di21- was charged with 20°C in toluene, and then 4tgyt of hecypmethylene diisocyanate was added and allowed to react at 0°C to form a urethane resin with a resin concentration of 30% and a viscous poise. I got the solution.

Starting from this urethane resin, a blended liquid was prepared at the following mixing ratio.

Surface coating layer resin 700 parts dimethylformamide 20 parts toluene
20 parts of the above composition were stirred and mixed using a total dispersion stirrer, applied to the surface of release paper (DNTP-AP-T manufactured by Dai Nippon Printing Co., Ltd. was used) to a thickness of about 2Sμ, and heated at 700°C. Let dry for 2 minutes.

Adhesive layer resin 700 parts Polyisocyanate 20 parts Metal crosslinking accelerator 3 parts Toluene 20 parts Methyl ethyl t-ton 20 parts The viscosity of the two-component urethane adhesive was 70 voids. This adhesive was applied to a thickness of 0.72wx on the urethane layer, and this was applied to the woven fabric, knitted fabric i (-laminated, 720wx).
Dry at ℃ for 1 minute.

Next, it was left in a constant temperature room at yc≠0°C for 2 days, and then peeled off from the release paper.

As a result of the experiment, the fabric manufactured according to the above example had the following neck length. .

(1) Excellent moisture permeability for stretchable fibers and knitted fabrics. (JISZ-Q Noza) 3000 shi J/2 gu h (
2) It was completely waterproof. (J Is L-7079
)Water YE method 2000 ■, spray method 90-100 (3)
The moisture-permeable film was strong and stretchable, and had good bank stretch properties.

(4) Excellent washing resistance. Almost no decrease was observed even after washing 50 times, and the durability of peel strength was excellent.

(5) Excellent light resistance.

(6) Cold resistance was -70°C and heat resistance was 760°C, both of which were excellent.

[Example 2] In Example 1, when applying the surface coating layer resin to the release paper, the viscosity and viscosity of the resin were taken into consideration.
The resin was coated onto the release paper using a knife or roll with a textured surface. As a result, four stripes and convex stripes in which concave and convex areas are adjacent to each other are formed on the resin surface (concave 9
The difference in convexity was 7 microns to 70 microns), and the surface area was larger than that of a smooth surface, resulting in greater moisture permeability and waterproofing effects.

[Example 8] The above-mentioned surface coating layer resin was used and directly coated onto textiles and elastic thin articles by knife coating, roll coating, etc. Through this method, a fabric with permeability and waterproof properties was created due to the characteristics of the resin.

The moisture permeability of fabrics processed using this direct coating method is 1. (JIS Z-0201) l1
0001 part wh /,! Ilh, and the waterproofness is (JI
SL-707) was 300 to 00 r''/ra. In addition, other properties such as elasticity and washing resistance were the same as those of the lamination method of the above-mentioned Example/Example.

Procedural amendment (Self-restraint Patent 8.': Office Examiner, 1 Chuo-gai Indication 1960 Patent t!l: Application No. g22!; Relationship with No. 2 and 11 Patent Applicant 1 (,'/1 I〒 Kei V Nama Joint Stock Company (3 Haku, I 4, Agent 5, +i'*Zeriri+l+Notification 1 (Date of 1 Showa
Year Month Day 6, Ura 11. 9', the number of inventions increases by 7, 11σrk・l image, Detailed explanation of the invention in the specification column 8, 11. Nouchi'tani As shown in the appendix ■, in the Meiji 2nd erasure, the 31st and 31st Igo J 戊品'' is corrected to read ``mixture.''

2. Similarly, on the 20th line of page 7, it is corrected as 4- "Fノ, 2!; μ" which is written as 1O,/2■-1.

3. Similarly, 1300~g 0 with the 7th shellfish 1st fi
0 "/, □" i 300- g 00 ym
Correct it with J.

that's all

Claims (1)

[Claims] 1. A moisture-permeable and waterproof fabric laminated or coated with a moisture-permeable urethane resin whose main component is polyether glycol, polyester glycol, or a mixture thereof. 2. The urethane resin layer is made of a fabric having moisture permeability and waterproof properties as described in the special iFF## desired range item/paragraph 3, polyether, which has protrusions extending in one direction on its surface. A urethane resin layer is formed on a release paper using a moisture-permeable urethane resin mainly composed of glycol, polyester glycol, or a mixture thereof, and an adhesive is applied to the urethane resin layer. After coating and adhering this to the fiber base material via adhesive, Rr
A method for producing a fabric having moisture permeability and waterproof properties, characterized in that a urethane resin layer is formed on a fiber base material by peeling off a J-S pattern paper.