JP2002103495A - Functional material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a functional material by giving a feeling with lame having the feeling of high rank to the base material of a film without damaging air permeability and a feeling of the base material or giving an embossing feeling by embossing without a continuous film. SOLUTION: A discontinuous transparent film of a moisture-curing type hot-melt urethane-silicone copolymer resin is provided on one side of the base material of a film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to impart a high-grade sensation of lame without sacrificing the air permeability, feeling, and flexibility of a furium base material, and to impart a sense of balance of gloss. The present invention relates to a functional material excellent in design that gives a feeling of embossing without embossing without a continuous film.

[0002]

2. Description of the Related Art Conventionally, there is a base material on one side of a furium substrate, and a synthetic leather on which a urethane resin film is provided or a nylon resin film is transcribed is used for clothing, bags, bags, furniture, etc. Has been used in the field. Also, what is called artificial leather in which a fine denier nonwoven fabric is impregnated with a urethane resin has been widely used in the above field.

[0003]

SUMMARY OF THE INVENTION The present invention provides a high-quality lame feeling without impairing the tactile sensation, breathability, moisture permeability and hand of a furim substrate, or embossing without a continuous film. It is an object of the present invention to provide a functional material which gives a feeling of graining and which gives a higher design effect by mixing a suede touch and a glossy feeling when a wet frill is used as a base material.

[0004]

In order to solve the above-mentioned problems, the inventor has provided a discontinuous transparent film of a reactive hot-melt resin on a film base material (a polyurethane wet film which has been subjected to a suede process) to thereby provide ventilation of the suede film. It succeeded in giving a luxurious feeling of lame without giving off the properties, moisture permeability and feeling, and giving a feeling of embossing.

[0005] Film base materials include wet-type polyurethane film, suede film, dry-type moisture-permeable polyethylene film, polyester film, polypropylene film, polyurethane film, polyacryl film, PTFE film, and the like. Laminated materials can also be used.

As the reactive hot-melt resin provided on one side of the film substrate, a resin obtained by copolymerizing a silicone resin with a polyol and MDI can improve the adhesiveness of the surface resin layer. The polyol is blended with 1 to 10 kinds, preferably 2 to 5 kinds, and the silicone resin is 1
To 10 are preferred. As the discontinuous film of the reactive resin, a hot-melt resin having a melting temperature of 60 ° C to 220 ° C is used, and a hot-melt resin having a melting temperature of 90 to 130 ° C is preferably used. In the present invention, a moisture-curable hot-melt type silicone-modified urethane resin is preferably used.

When a continuous film is formed, the tactile sensation of the film substrate,
The feeling, air permeability, and moisture permeability are impaired, and the feeling becomes rubber-like, which is not suitable for the present invention. As a method for forming the discontinuous film, screen printing, especially a rotary screen, and a gravure printing method are preferably used. or,
A gravure printing method is also preferably used to achieve the object of the present invention.

The reason why the discontinuous film is a transparent discontinuous film is as follows.
It makes use of the texture, color, and gloss of the material of the film base material. If it is an opaque discontinuous film, it becomes a polka dot pattern or a geometric pattern, which is not suitable for the purpose of the present invention. The opaque or colored discontinuous film can be used for other purposes.

[0009] The discontinuous film is provided so as to have a porosity of 20% to 90%, and the discontinuous film has a reflection gloss of 10% to 90%.
Adjust to 95%. The discontinuous film adhered firmly after aging for about 24 hours, and at the same time, a functional material having excellent abrasion resistance, abrasion resistance and washing resistance (dry and wet) and blocking resistance was obtained.

The coating amount of the discontinuous transparent film of the reactive hot-melt resin is 5 to 100 gr / m ² , preferably 10 to 40 gr / m ² .
² .

In terms of design, a geometric pattern can be expressed by design, and characters based on free ideas such as random points, diagonal lines, diamonds, circles, triangles, squares, dotted lines, lines, batties, stars, and flowers. The pattern may be used, and the porosity is preferably 20% to 90%, more preferably 30% to 70%.

[0012]

Example 1 A gravure roll in which a moisture-curable silicone-modified urethane resin is set on a suede-like film substrate by sanding the surface of a film on which a colored urethane film is wet-formed to have a porosity of 70%. Is applied at a coating weight of 25 g / m ² , the release paper is immediately laminated, and after aging, the release paper is peeled off. A functional material with an excellent texture was obtained. This functional material may be used as it is as a film,
Also, various substrates, nonwoven fabrics, tricots, woven fabrics, papers and the like can be bonded to the backing material.

[0013]

Example 2 A moisture-curable silicone-modified polyurethane hot melt resin was applied on a polyester moisture-permeable film at a coverage of 15 g / m ² using a gravure roll set so as to have a porosity of 40%. The coated polyester film was laminated, the release paper was peeled off after aging, and a functional material excellent in glossy air permeability and moisture permeability was obtained. As the functional material, a tricot, a nonwoven fabric, a woven fabric, or the like is obtained depending on the application, and a bonded paper or a functional material is obtained. The material can be used for clothing or the like.

[0014]

Example 3 A moisture-curable silicone-modified polyurethane hot melt resin having a porosity of 70 on polyester satin was used.
% Using a gravure roll set to be%
The coating was applied at 0 g / m ² , and immediately thereafter, an enamel release paper was laminated. After aging, the enamel release paper was peeled off to obtain a glossy functional material excellent in air permeability and moisture permeability. After that, the product was subjected to water repellent treatment to expand its use as a material for sports clothing, rainwear, and coats.

[0015]

COMPARATIVE EXAMPLE 1 A polyurethane moisture-curing type hot-melt resin based on a wet suede film was hot-melted at 110 ° C. using a dot-like gravure roll to obtain a porosity of 30.
% Was applied to the biasing amount 15 g / m ^2, the laminated enamel type silicone-coated polyester film was peeled in 48 hours after aging, to obtain a functional material having a consistent suede feel of balance with enamel feeling.
This was compared with Example 1 and a blocking test was carried out at the same time to obtain the results shown in Table 1 below.

[0016]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) D06N 7/04 D06N 7/04 F term (Reference) 4F055 AA02 BA11 BA18 DA09 FA15 GA01 HA02 4F100 AK04A AK07A AK18A AK41A AK51A AK51B AK51J AK52B AK52J AL01B AS00A AT00A BA02 DC30B DG01A DG12A DG13A DG15A EH46 GB71 GB72 GB81 HB00 JA20B JB12B JD02 JD04A JM02B JN01B JN21 4L033 AB05 AB06 AB07 AC07 AC15

Claims (6)

[Claims] 1. A functional material characterized in that a discontinuous transparent film of a reactive hot-melt resin is provided on one surface of a fibrous base material. 2. The functional material according to claim 1, wherein the fibrous base material is a woven fabric, a knitted fabric, a nonwoven fabric, a synthetic leather, or an artificial leather. 3. The reactive hot-melt resin is a moisture-curable hot-melt urethane / silicone copolymer resin.
Functional material as described. 4. A functional material characterized in that a discontinuous transparent film of a reactive hot-melt resin is provided on one surface of a film substrate. 5. The functional material according to claim 4, wherein the film base material is a porous ethylene moisture permeable film, a polypropylene moisture permeable film, a polyester moisture permeable film, a PTFE moisture permeable film, a polyurethane moisture permeable film, or a suede film. 6. The functional material according to claim 4, wherein the reactive hot-melt resin is a moisture-curable hot-melt urethane / silicone copolymer resin.