SU829670A1 - Method of leather greasing hydrorhobization for shoe top - Google Patents

Description

(54) METHOD OF GOING AND HYDROPHOBIZATION OF THE SKIN FOR THE TOP OF SHOES

r-ihUio naphthenic, acids, n as (x; oic acids, naphthenic acids in the following ratio of components, wt.%:

Glycol ether

naphthenic acids50-70

Ammonium Soap for 1-20 naphthenic acids

Naphthenic acids6-22

Water 4-22,

and then the leather is filled with a 10% solution of aluminum alum in the amount of 1-3% by weight of the leather.

Introduction to the fatliquoring composition ammonium mta naphthenic acids, free naphthenic acid and glycol ester of naphthenic acid followed by treatment with oiling semifinished Alum allows during drying semifinished cleaved SOONNd group with ammonia, isolation and replacing it with aluminum to form insoluble aluminum soaps naftenoryh acids which have viscosity is higher than the corresponding synthetic fatty acid soaps. Thus, the hydrophobicity of the skin is increased due to the cyclic structure of the naphthenic derivatives and the high viscosity of the fattening system in comparison with the analogous derivatives of synthetic fatty acids containing straight chain hydrocarbons.

The method is carried out as follows.

Leather chrome tanning for shoes, obtained by the standard method, grease the proposed composition on spent dyeing fur for black leather and clean water for unpainted leather. Fat emulsion is prepared using conventional methods at a pH of 5% emulsion, equal to 7.5-8.0, and poured into the drum on the go in one go. The liquid coefficient is 1.01, 2, the bath temperature is 60-65 ° C, the duration of treatment is 40-60 m. Consumption of the composition is 5.0-5.5% by weight of the planed skin (counting on 100% fat). After fattening the drum, aluminum alum is added in the amount of 1-2% by weight of the sliced leather and the skin is treated with a rotating drum for 1 hour.

The Yuft skins obtained according to the standard method are unrolled and loaded into a preheated drum and rotated dry, without fat, with air being supplied for 15–20 minutes. Then, the gauge mixture heated to 65-75 ° C is poured through the hollow axis of the drum at intervals of 15-20 minutes. The blown air temperature is 8Q-5 ° C, the waste is 34-45 ° C. The treatment time is 1.5-1.3 hours. The consumption of the composition is 20-234, by weight of the pressed leather. After fattening, alum is added to the drum in an amount of 3% by weight of the leather. The skin is treated in the drum for 1 hour.

Example 1. Chrome skin, developed from the skins of bychin according to the standard method, is greased with the following composition, wt.%:

Glycolic ester of naphthenic acids 50 Ammonium 4ylo naphthenic acids 16 Naphthenic acids 22 Water, 12

Then, alum alumina is added to the spent solution in an amount of 1% by weight of the leather and the skin is treated for 1 hour.

Further processing of the semi-finished product is carried out according to a standard procedure. The control batch of leather, developed from the skins of Bychina, processed according to a known method.

Example 2. Chromic skins, produced from the skins of a bull by the standard procedure, as in example 1, are greased with the following composition, wt.%: Glycolic ester of naphtha 1 acids 60 Ammonium flux of naphthenic acids 18 Naphthenic acids 14 Water8

Then, alum alumina is added to the waste solution in amounts of 2% by weight of the leather and the skin is treated for 1 hour.

Further processing of the semi-finished product is carried out according to a standard procedure. The control batch of leather, developed from the skins of a bull, is stripped by the known method.

Example 3. Yuft, worked out from the skins of bychina easy by the standard method, is greased with the following composition, wt.%:

Naphthenic acid glycol ester 70 Ammonium naphthenic acid soap20 Naphthenic acids 6 Water4

After fattening, alum alumina is added to the drum in an amount of 3% by weight of the skin, and the skin is treated for 1 hour.

Further processing of the semifinished product is carried out according to the standard method of production of Russian petroleum products. the control batch of the yacht, developed from the light bucket, is processed by a known method.

The table shows the indicators of the hydrophobic properties of the skin, obtained according to the examples. Permeability, 0.134 0.258 0.043

Water resistance,

240 120

min. The use of the invention allows not only to develop skin with increased hydrophobicity, but also to improve the performance properties made from. her leather goods, especially shoes. Claim 1. FATING method and hydrophobization of leather for shoe upper by treating with an oily compound containing ammonium soap of carboxylic acids, carboxylic acids and water, and then filling it with aluminum alum solution, so that that, in order to increase the hydrophobic properties of the skins, the fattening composition additionally contains glycolic ester of naphthenic acids, as the ammonium soap of the carbonic K} 1slot - the ammonium naphta120 240

120

240 0,081 0,011 0,038 new acids, and as carboxylic acids - naphthenic acids in the following ratio, wt.%: Glycolic ester of naphthenic acids 50-70 Ammonium naphthenic acid soap 16-20 Naphthenic acids 6-22 Water 4-12 2. POP method .1, characterized in that the leather is filled with a 10% solution of aluminum alum in an amount of 1-3% by weight of the leather. Sources of information taken into account in the examination 1. Czechoslovak Czechoslovakia patent No. 122136, cl. 28a9, 1967. 2. The author's certificate of the USSR for application No. 2635529 / 28-12,29.06.78 (prototype).

Claims (1)

Claim 1. The method of fatliquoring and hydrophobization of leathers for upper shoes by treating with a fatliquoring composition containing ammonium soap of carboxylic acids, carboxylic acids and water, and then filling it with a solution of aluminum alum, about 30 h. I mean that, in order to increase the hydrophobic properties of leathers, the fatliquoring composition additionally contains glycol ether of naphthenic acids, ammonium soap of carboxylic acid and ammonium soap of naphthenic acids, and naphthenic acids as carboxylic acids in the following ratio com ponents, wt.%: Naphthenic Acid Glycol Ether 50-70 Ammonium soap naphthenic acids 16-20 Naphthenic acids 6-22 Water 4-12 21 The method according to claim 1, characterized in that the filling of the skin is carried out with a 10% solution of aluminum alum in an amount of 1-3% by weight of the skin.