SU1253828A1 - Material for decorative finishing of leather - Google Patents

Description

The invention relates to a material for decoration of leather and can be used in the shoe industry for decorative finishing of shoes and leather.

The purpose of the invention is to improve the quality of the material by increasing the resistance to multiple bending and its simplification.

  The proposed material is a polyethylene substrate made of low and high density polyethylene with a ratio of 2-4 and a colorful image applied on it based on α-lkyd resins.

Example 1. A polyethylene substrate is prepared by mixing granules of high and low density polyethylene at a ratio of 1: 2-4, then melting the mixture and extruding the resulting molten mixture into a substrate that has the form of a film, and then winding it into a roll. below.

Density, g / cm 0.930-0.950

Strength at

stretching MN / m 20-25

Relative elongation at break,% 400-700

The softening temperature, 120-130

On the substrate, made of a mixture of low-density and high-density polyethylene in a ratio of 1: 2, a colorful image was painted using the YTF brand alkyd paint (based on pentaphthalic resin) by screen printing,

The image is dried for 40 minutes at C. The resulting material is used to apply a decorative image to the details of the

Resin D-1600 (high viscosity

alkyd)

Polyvinyl alcohol solution

in water. 20-30

ha of shoes from goatlines .pri, P 1, 5 MPa.

EXAMPLE 2. A substrate made of a mixture of low-density and high-density polyethylene in a ratio of 1: 3 is applied, as in Example 1, with an alkyd paint of TNPF. The image is dried for 30 minutes at. The resulting material is used to apply the image to the details of the top of pigskin shoes at C, 75 MPa,.

Example 3. On a substrate made of a mixture of low-density and high-density polyethylene in a ratio of 1: 4, an alkyd paint of the TUMS brand (based on an alkyd styrene resin) is applied as in example 1. The image is dried for 35 minutes at T 90 C. The resulting material is used. for applying a decorative image to the details of the toe of a sprout at T 100 C, 2 MPa. Formulation of paints based on alkyd resins are presented in table 1.

The obtained colorful images on different skins have high adhesion strength and indicators of resistance to repeated bending, wet friction, which meet the standards of GOST 939-75 and exceed the image quality obtained by known materials for decal-scientifi cation (Table 2).

The use of the invention for decal material in the finishing of children's shoes from. natural leather showed high performance properties of the decorative image, which allows expanding the assortment of traditional children's shoes.

T a b l and 1 d a 1

Alkyd Resin Solution

Aerosil Dryer

Note. Paints of the TUPF, TNPF brand, are filled in according to TU 28-09789-79, paints of the TUMS brand according to TU 29-02-433-73.

;Table 2.

400

800

Note. Used leather for the upper shoe coated

new acrylic dispersions and fixing jars based on nitrocellulose lacquer.

Editor M. Tovtyn

Compiled by V. Szymanska

Tehred V. Kadar Proofreader A. Obruchar

4673/20

Circulation 362Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Design, 4,

-G - HP table. G,

60-80 3-4 4-6

300

500

400

1600

Claims (1)

, MATERIAL ₍ FOR DECORATIVE 'FINISHING OF SKIN, consisting of a polyethylene substrate and a colorful image based on alkyd resins, which is deprived of the fact that, in order to improve the quality of the material due to the increase in resistance to repeated bending and its simplification, polyethylene. Shaft substrate a mixture of high-density polyethylene and low-density polyethylene was made with a ratio of 1: 2-4, respectively.