SU1541075A1 - Multilayer material for shoe inner parts - Google Patents

Abstract

The invention relates to light industry and improves the performance properties of a material while improving its hygienic properties. The laminate material for the inner parts of the shoe includes a fibrous substrate with adhesive layers applied to one of its sides. A 40-60% aqueous dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid is used as an adhesive layer with a ratio of components (14: 85: 1) - (5: 90: 5), respectively, with a viscosity of 15-50 s. 2 hp f-ly, 1 tab.

Description

The invention relates to light industry, in particular, to the development of a multilayer material with an adhesive surface layer for inner parts of footwear - lining, interlayers, reinforcing parts.

The purpose of the invention is to improve the performance properties of the material with repeated use while improving its hygienic properties.

This goal is achieved by the fact that in a multilayer material for the inner parts of shoes, consisting of a substrate coated with an adhesive layer on one of its sides from an aqueous dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid and a protective layer of siliconized, waxed or polyethylene paper, as a substrate used

the fiber base of their natural or chemical fibers or mixtures thereof; the adhesive layer contains 40-60% dispersion of vinyl acetate, butyl acrylate and acrylic acid with a comonomer ratio of 14: 85: 1-5: 90: 5, respectively, with a viscosity of C.

The material may contain sodium alumomethyl silicate as a protective layer.

A multilayer material of this composition has sufficient adhesion to the materials of the shoe upper, the ability to stick together with the top blank at room temperature, as well as the required hygienic properties. The use of various types of fiber bases allows the material to be used for the inner parts of shoes for a wide range of purposes. Due to the presence in the adhesive layer of acrylic acid

cl

Ј

S

within 1-5%, sufficient adhesion strength of the multilayer material is ensured when in contact with various materials of the shoe upper with natural or synthetic leather dubbed with textile materials; the lack of structuring of the polymer coating over time, the preservation of the elasticity of the material is ensured by the presence in the adhesive composition of butyl acrylate in the amount of 85-90%.

The material is obtained by applying an adhesive layer to a fibrous substrate. The drying of the adhesive layer is carried out at 80-1004.

Example 1. A multilayer material consisting of a substrate — a fibrous base made of viscose fibers, an adhesive layer applied on one side of a 0% dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a comonomer ratio of 1: 85: 1 15 s and a protective layer of polyethylene paper.

The properties of the multilayer material with one-sided adhesive layer are presented in the table.

PRI mme R 2. A multi-layered material consisting of a substrate — a fibrous base made from a mixture of cotton and lavsan fibers at a ratio of 70:30; applied on one side of the adhesive layer from a 50% dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a ratio of 10:87: 3 with a viscosity of 30 s and a protective layer of waxed paper.

PRI me R 3. A multilayer material consisting of a substrate — a fiber base of cotton fibers deposited on one side of a pei layer from a 60% dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a comonomer ratio of 5: 90: 5 with a viscosity of 50 s and a protective layer of siliconized paper.

Example. A multilayer material consisting of a substrate - a fibrous base of nylon fibers deposited on one side of the adhesive layer from a 50% dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a comonome ratio of 0

five

0 5

thirty

h before

45

50

55

Ditch 8: 89: 3 with a viscosity of 0 s and a protective layer of sodium alumomethylsiliconate.

PRI me R 5. Similar to Example 1, but an adhesive layer of 30% dispersion with a viscosity of 10 with a copolymer of vinyl acetate, butyl acrylate, and acrylic acid at a ratio of 20: 79: 1.

EXAMPLE 6 Similar to Example 2, but an adhesive layer of 65% dispersion with a viscosity of 60 with a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a ratio of 1: 93: 6.

PRI me R 7. Similar to the prototype, but an adhesive layer of 50% dispersion with a viscosity of 30 s of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a ratio of 10: 87: 3.

Example Similar to example 1, but an adhesive layer of 50% dispersion of a copolymer of vinyl acetate, butyl acrylate and acrylic acid at a ratio and 50% dispersion of a copolymer of butyl acrylate and vinyl butyl ether at a ratio of comonomers: taken in a 1: 1 ratio (according to the prototype ).

Claims (3)

1. Multilayer material for the inner parts of the shoe, including a fibrous substrate coated with an adhesive layer based on an aqueous dispersion of polyvinyl acetate on one of its sides, characterized in that, in order to improve the performance properties with repeated use of the material while improving its hygienic properties, A 0-60% aqueous dispersion of vinyl acetate, butyl acrylate and acrylic acid copolymer was used as the adhesive layer with a ratio of components X: 85: 1-5: 90: 5 with a viscosity of 15-50 seconds. 2. A multilayer material according to claim 1, characterized in that it has a protective layer of sodium alumomethylsiliconate. 3. Multilayer material on PP. 1 h 2, characterized in that the substrate is made of chemical fibers. 0.75 0.75 10 0.02 8.7 0.75 eight 7 0.01 8.0 75 02 0 0.75 eight 7 0.01 7.5 OL 3 2 Oh oh 0.4 five C Oh oh 0.3 0.2 0.1 0.2 0.1 O ABOUT