SU800199A1 - Composition for greasing elastic leathers - Google Patents

Description

(54) COMPOSITION FOR FATING ELASTIC SKINS

one

The invention relates to leather industry, in particular to compositions for fattening of leather.

The known composition for fatty skin fattening fllr containing synthetic fat (grade A), obtained by the esterification reaction of distilled synthetic fatty acids fraction, ethylene glycol, sulphurized blubber and mineral oil in the following ratio of components, wt.%:

Synthetic fat 50

Sulfonated blubber 30

Mineral oil 20

The disadvantage of this composition is the high temperature of dropping and low penetration ability of the uneven distribution in the thickness of the dermis, which does not allow to get skins for the upper of the shoe with increased elasticity.

The purpose of the invention is to create a composition that allows to increase the elasticity of the leather for the upper of the shoe.

This goal is achieved in that the composition additionally contains ethoxylated fatty acids, the synthetic esterification product of synthetic fatty acids is polyglycol as synthetic fat, and the sulfonol is used as an emulsifier in the following ratio of components, wt.%:

Synthetic fat 50-60 Mineral oil 20-30 Sulfonol8-12

Oxyethylated Fatty Acids 8-12 Introduction of Oxyethylated Fatty Acids allows the fatty composition to be distributed in the dermal layer using synthetic fat obtained by the esterification reaction of technical synthetic fatty acids of the polyglycol fraction. Thu provides an opportunity to significantly improve the elasticity of the skin.

The technology of application of the composition is as follows.

Ko; ki for the top of the shoe, obtained by the standard method, grease the proposed composition on the waste dye bath for black color and

on pure water - for unpainted leather.

Khirovu emulsion prepared using conventional methods at a pH of 5 emulsion 7.5-8.0 and poured into the drum on the go in one step. The liquid coefficient is 1.0-1.2, the temperature is bs, the treatment time is 40-60 minutes.

Consumption of the composition of 5.0-5.5% by weight of planed leather (including 100% fat. Example 1. Leather produced from batches of bychin skins according to a typical method, followed by composition, wt.%:

Synthetic fat 50 Mineral oil (spun) 30

Sulfonol12

Oxyethylated fatty acids 8 Further processing was carried out according to a standard procedure.

Example 2. The skin, developed from the parties of the skins of agile by the standard method, as in example 1, was fattened with the following composition, wt.%: Synthetic fat 55 Mineral oil (machine) 25

Sulfonol10

Ethoxylated fatty acids 10 Further processing of the semifinished product was also carried out according to a standard procedure.

Example 3. The skin, developed from batches of goby skins, as in example 1, was fattened with the following composition, wt.%:

Synthetic fat 60 Mineral oil (spun) 20

Sulfonol8

Ethoxylated fatty acids 12

Further processing of the semi-finished product was also carried out according to the standard procedure,

As a result of the treatment with the proposed composition, elastic skins were developed that meet all the requirements of GOST.

Leather tests for elasticity are carried out on a PJU-12M instrument, on which the rigidity of the leather is determined by the ring method. There is an inversely proportional relationship between leather stiffness and its elasticity.

The rigidity of the skin treated with the proposed composition ranges from 15.9-10 to 32.710 kg (the rigidity of leather treated with the known composition 27, 43.3-10 kg).

Claims (1)

1. The method of production of elastic leather for the upper lining and bezpodkladochnoy shoes from the skins of cattle. 10/15/78.