SU1516492A1 - Composition for greasing hides - Google Patents

Abstract

The invention relates to light industry, can be used in leather production and will improve the performance properties of finished leather while reducing the cost of the composition. To do this, as a fattening component, the composition contains a product derived from the production of synthetic distilled isoacids of the C ₁₁ -C ₁₉ fraction in the petrochemical industry — modified alpha-branched monocarboxylic acids of the C ₂₁ -C ₃₁ fraction. The composition is prepared by mixing in an emulsifier at 60-70 ° C with 70-90% by weight of modified alpha-branched monocarboxylic acids of the C ₂₁ -C ₃₁ fraction and 10-30% by weight of the emulsifier; paste, etc. The composition has a wide range of possibilities - it can be used for fattening leathers from any raw material for various purposes. 1 tab.

Description

The invention relates to light industry and can be used in leather production for fattening leather.

The purpose of the invention is to improve the performance properties of the finished skin while reducing the cost of the composition.

The composition for fattening of the skins includes a fatting component and an emulsifier, as the fattening component contains modified 0-branched monocabronic acids (APMCC) of the С | 1 fraction (- С j (in the following ratio, wt.%:

Modified

ARMKK (.ch ktsii

Ca (- Cj, (70-90

Emulsifier10-30

ARMKK fraction C (c-C ti are waste from the production of synthetic distilled isoacids of the C fraction ((-C in the petrochemical industry).

The modified ARMCC fractions Crjj - Cj are obtained by treating them with sodium hypochlorite, concentrated sulfuric acid and alkali, the finished product consists of zfir (ARFA of general formula R -COO-R-93-94 and impurities of acid R -CCON or its sodium salt R - COONa,

where R- (cH2) 2-c-coo;

ate

n 21-jl; R is 0., H,

The composition is obtained by direct mixing the components in an emulsifier at 60-70 C.

The composition does not oxidize during the production of skins, evenly binds to the skin collagen and produces a uniformly colored bright surface. The composition is not crystal 1P1, which excludes fatty deposits on the skin surface. The use of modified ARMKK fraction E (which is a production waste, makes it possible to reduce the cost of maintenance.

The composition is used in the following 1 way.

The cola of the mineral method of tanning of DDII nepxti shoes, obtained by the known technique, is greased with the proposed composition on a used dyeing panel for black leather and on pure water for transparent leather. L (shch coefficient of 1.0–1.2, temperature at fattening, DL-C3, duration 45-60 minutes. Consumption of 6–10% by weight of skinned leather (counting at 100% hdar). Further processing of irovo / 1.its is based on the well-known method of manufacturing leather for Bc jxa shoes.

Fat emulsion for shoe leathers is prepared

using HSIUiCTHHX PrG methods; rI

7.5-8.0 and poured into the drum on the go in odpp. reception,

Ko, for beer, footwear and leather skins, in an unfolded bed, are loaded into a preheated drum and rotated dry without fat while supplying hot air for 15–20 minutes. Then, cooked is poured through the hollow axis of the drum; The world mixture heated to f; 5-75 C in two steps with an interval of 15-20 mip for yuft leather and in one dose for leather bottom shoes. The temperature of the blown air is 80 + 5 C, and the exhaust air is 35-45 C, the duration of treatment is 1.5-1.3 h long. leather and 30-45 for leather JHi ja shoes. Consumption of the composition for yuft leather 20-23% and for leather bottom shoes 2-3% by weight of pressed

kozh.

Further processing is carried out according to known methods.

P r and m er. Leather chrome dublagple dl In (RX shoes, made from the skins of the goby, treated with an oily composition, wt.%:

Modified

ARMKK fraction

CQI - C} (

70

Sulfonated fish oil30

Further processing of the leather is carried out according to a known method.

PRI mme R 2. Yuft, developed from the skins of medium skins, is treated with the following fattening composition, wt%: Modified ARMCC fractions C (C (oU

Sulfonated fish oil20

Further processing of the leather is carried out according to the method known.

Example 3. The skin is given the bottom of the shoe, made from gzhur bychina heavy, is treated with the following fattening composition, in wt.%: Modified ARM1J fractions - C 2,190

The tanning emulsifying asta10 D most leather treatment is carried out according to a known method.

 Control skins are treated with r1: - :; and; composition.

The table presents the data of physico-mechanical parameters of leather, developed using the proposed and known compositions. The use of the proposed soy-1 ava allows to improve the quality of leather and reduce their cost.

Claims (1)

Formula invented and The composition for fattening of skins, including its fatting component and emulsifier, characterized in that, in order to improve the performance properties of the finished leather while reducing the cost of the composition, As the fattening component, it contains modified cC-branched monocarboxylic acids of CQ, -C} fraction ( in the following ratio, wt.%: Modified (branched mono- carboxylic acid fractions C | 2 (-C5 (70-90 Emulsifier10-30