JPH01280403A - Shoes or footwear of rubber soled socks and production of upper leather material having stretchability used for same - 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] (Industrial application field) The present invention is yacht shoes and surfing boots.

This article relates to fishing shoes, underwater boots, jikatabi, and other shoes or jikatabi type footwear that particularly require elasticity, heat retention, and weather resistance, and a method for manufacturing the elastic upper material used therein. .

(Prior Art and Problems) The vinyl leather that is generally used as the upper material of shoes or footwear is a satin-woven fabric made of cotton or cotton.

After applying vinyl chloride paste to a woven fabric with relatively little elasticity, such as plain weave or twill weave, as a base fabric.

The vinyl chloride sheets are pressed together and integrated by the anchoring effect and adhesive strength caused by the penetration of the vinyl chloride paste into the woven fabric.

This vinyl leather has all the properties required for shoe upper materials, such as flexibility, waterproofness, abrasion resistance, and weather resistance, but the base fabric reduces the excellent elasticity of vinyl chloride. In addition, because of its poor heat retention properties, it was not ideal for use as the upper material for shoes such as fishing shoes and jikatabi.

In addition, there is a shoe upper material in which a polyurethane film is formed instead of the vinyl chloride sheet, but although it has excellent abrasion resistance, it has poor weather resistance and is expensive.

The present invention provides shoes such as fishing shoes that use an upper material that has heat retention properties in addition to the excellent elasticity, flexibility, waterproofness, wear resistance, weather resistance, and economic efficiency of vinyl chloride resin. Another object of the present invention is to provide footwear in the form of jikatabi, and to provide a method for manufacturing the upper material used for the shoes.

(Means for Solving the Problems) In the present invention, the back surface of the sponge layer has elasticity in the plane direction! a! ! A sponge base sheet is made by bonding together a knitted fabric made from the same material as the above-mentioned knitted fabric, and a skin sheet is made of a polyvinyl chloride resin film that maintains strength and elasticity on the surface of the knitted fabric, which is the same as or different from the knitted fabric. Shoes or jikatabi-style footwear in which an upper material made by adhering the surface of the layer and the back surface of the knitted fabric are integrated with a suitable sole with the surface on which the vinyl chloride resin film is formed as the upper surface. It is.

The manufacturing method of the upper material used for the shoes or footwear is to apply a vinyl chloride resin sol, which is a mixture of a plasticizer and a resin for vinyl chloride paste, a stabilizer, and a coloring agent, onto a release film with leather-like texture. A first step of applying a thin layer by means such as knife coating, a second step of heating the sol to semi-gel the vinyl chloride resin sol, and a semi-gelled vinyl chloride resin layer of the sheet material obtained in the second step. The third step is to overlay the knitted fabric on the forming surface, press it, and cure it to form a resin film, and it has leather-like grain! ! A skin sheet is produced in the fourth step of peeling off the house film, and a knitted fabric having stretchability in the plane direction is adhered to the back surface of the sponge layer to the knitted fabric surface of the skin sheet to form a unified sponge base sheet. A feature is that the sponge layer forming portion is bonded using an adhesive.

(Example) Next, the present invention will be explained in detail.

FIG. 1 is an enlarged sectional view of the upper material 7, in which synthetic fibers such as woolly nylon, Tetron, etc. A flexible knitted fabric 2a made of knitted fabric, tricot knitted fabric, etc. made of rayon or rayon, which is stretchable in all the vertical, horizontal, and diagonal directions, is bonded and integrated with an adhesive 3a such as a neoprene-based synthetic rubber adhesive or a polyurethane-based adhesive. One side of the sponge base sheet 4 and the knitted fabric 2b, which is the same or different from the knitted fabric 2a, has leather-like grains on the surface and has a strength of 2.
A neoprene-based synthetic rubber adhesive and a polyurethane-based adhesive are applied so that the surface of the knitted fabric 2b is polymerized on the surface of the skin sheet bonding layer 1 on which the vinyl chloride resin film 5 of ~4 kg/mm'' and elongation of approximately 350-500% is formed. Each layer is bonded with an adhesive 3b such as an adhesive and has a structure in which each layer is integrated.

As shown in FIG. 2, this upper material 7 is used to form a shoe-like cylindrical upper that exposes the heel, a cylindrical upper that also covers the heel,
Various types of carapaces 9 are formed, such as a cylindrical carapace that covers the lower part or frost heave, a cylindrical carapace that covers the crotch, and a carapace for jikatabi. , by adhering to the outer periphery of the sole body 8 using an adhesive, or by embedding and adhering it to the outer periphery of the sole body 8 using an adhesive to form a shoe or jikatabi type footwear 4R.

Further, an example of a method for manufacturing the above-mentioned upper material is as follows.

That is, D, O, P (dioctyl phthalate), D
, B, P (dibutyl phthalate), D, C, P (licresyl phosphate), polyester plasticizer, 70 to 100 parts of a plasticizer such as nitrile synthetic rubber latex,
2 to 5 parts of stabilizer to 100 parts of resin for vinyl chloride paste,
A vinyl chloride resin sol mixed with several parts of a coloring agent is coated onto a leather-like grained release film using a knife coating method.
The first step is to apply a thin layer of about 0.5 to 0.3 mm, and then put it in a heating furnace and heat it for 1 to 5 minutes at 140 to 180°C to make the vinyl chloride resin sol semi-gelled (not completely gelled). Immediately after the second step, a stockinette knitted fabric is superimposed on the surface on which the vinyl chloride resin semi-gelled layer is formed, and the knitted fabric is pressed and cured. A fourth step is to peel off the release film with leather-like texture. A skin sheet is obtained through the process.

In addition, synthetic materials such as woolly nylon and Tetron can be used on the back side of the sponge layer, which is made of neorene synthetic rubber, neorene and natural rubber mixed rubber, natural rubber, synthetic resin, etc.
A sponge made by bonding flexible knitted fabrics such as knitted or tricot knitted fabrics that are stretchable vertically, horizontally, and diagonally using adhesives such as neorene synthetic rubber adhesives or polyurethane adhesives. Obtain a base sheet.

Then, the knitted fabric surface of the skin sheet obtained by the above method is superimposed on the sponge layer of the sponge base sheet 4 via a polyurethane adhesive, and the two are integrated to form a shoe upper material.

(Operations and Effects of the Invention) The shoes or jikatabi type footwear according to the present invention described above includes a skin sheet in which a vinyl chloride resin film is reinforced with a knitted fabric having stretchability in the plane direction, and a sponge layer having heat retention properties. The upper material is made of a sponge base sheet reinforced with a knitted fabric that has stretchability in the plane direction on one side, and is firmly bonded together so that the vinyl chloride resin film and the knitted fabric side are the front and back sides. Because of the structure used, it has excellent durability, the elasticity of vinyl chloride resin is not diminished by overlapping members, and it is possible to obtain heat retention that vinyl chloride resin does not have. This makes it possible to fully utilize the characteristics of PVC resin, such as flexibility, waterproofness, abrasion resistance, and weather resistance (discoloration resistance, cold resistance, and seawater resistance), and in addition, a polyurethane film is formed. To provide inexpensive shoes or footwear in the form of jikatabi, which are cheaper and more durable than shoes, and have particular elasticity, heat retention, and weather resistance, such as yacht shoes, surfing boots, fishing shoes, underwater boots, and jikatabi. be able to.

Furthermore, according to the method of the present invention, a vinyl chloride resin sheet is not used as a means for forming a vinyl chloride resin film, but a vinyl chloride resin sol is thinly applied onto a release film with leather-like grains by means such as knife coating. After that, the vinyl chloride resin sol is heated to semi-gel, and a knitted fabric is layered on the surface on which the vinyl chloride resin semi-gelled layer is formed, and then the knitted fabric is pressed and cured, which improves the elasticity and flexibility of vinyl chloride. ,
This has the effect of making it possible to easily produce an upper material that has uniform elasticity in the plane direction without reducing its weatherability.

[Brief explanation of the drawing]

IF diagram is an enlarged sectional view of the upper material manufactured by the method of the present invention, and FIG. 2 is a side view of a shoe according to the present invention using the upper material. 1...Sponge layer 2a...-Cloth 2b...
...IQ cloth 3a...adhesive 3b...
・Adhesive 4... Sponge base sheet 5... Vinyl chloride resin film

Claims (1)

[Scope of Claims] 1. A sponge base sheet 4 in which a knitted fabric 2a made of fibers and having stretchability in the plane direction is bonded to the back surface of the sponge layer 1, and the material is the same or different from the knitted fabric 2a. knitted fabric made from fibers 2
A skin sheet 6 on which a vinyl chloride resin film 5 that maintains strength and elasticity is formed on the surface of b is bonded to the surface of the sponge layer 1 and the back surface of the knitted fabric 2b. Shoes or jikatabi type footwear in which the resin film-formed surface is used as the upper surface and is integrated with a suitable sole 8. 2. The first step is to apply a thin layer of vinyl chloride resin sol, which is a mixture of a plasticizer, a vinyl chloride paste resin, a stabilizer, and a coloring agent, onto a leather-like grained release film by means such as knife coating; A second step in which the vinyl chloride resin sol is semi-gelled by heating, and a stretchable knitted fabric made of fiber is superimposed on the surface of the sheet material obtained in the second step on which the vinyl chloride resin semi-gelled layer is formed. The third step is crimping and curing,
A skin sheet was produced by the fourth step of peeling off the release film with leather-like grain, and a knitted fabric having stretchability in the plane direction was bonded to the back surface of the sponge layer to the knitted fabric surface of the skin sheet and integrated. A method for producing a stretchable upper material, characterized in that the sponge layer forming surface of a sponge base sheet is adhered using an adhesive.