SU927857A1 - Composition for scouring pig raw materials - Google Patents

Description

(54) COMPOSITION FOR DEGREEDING PORK RAW MATERIALS

  , t

The invention is adapted to the leather industry and can be used in the degreasing of pork skins.

A known composition for combined processes of soaking and degreasing porcine raw materials. 1 and (2, containing sodium sulfate, sulfur sodium, soda ash and non-ionic surfactant in the following ratio of components, g / l:

Sodium sulfite 2-5

Sodium sulphide.0.2-0.5

Calcined. soda16-26

Neioiogenic PAV5.0

The closest to the proposed technical essence and the achieved effect is the composition for de-skimming the pork raw materials, including soda ash, surfactant and water 3.

In addition, this composition as a sharpener contains a mixture of sodium salts - sulphide and sulphite.

The disadvantage of these compositions is the low quality of processing, which makes it difficult to carry out subsequent liquid processes in the production of pigskin.

The purpose of the invention is to improve the quality of processing.

This goal is achieved in that the composition for degreasing porcine raw materials, including soda ash, a surfactant and water, contains apkyl dimethyl benzyl ammonium chloride as a surfactant, with the following

10 ratio of components, g / l: Soda Ash 3-15

Alkyldimethylbenzylammonium chloride, 3-1.0

WaterEverything

15

In addition, in order to weaken the bond between bristles and dermis, the composition additionally contains sodium sulphide in the following ratio of components, g / l:

Soda Ash 10-15

20

Alkyldimethylbenzylammonium chloride, 3-0.5

Sodium sulphide 0.3-0.5

Water Retention 3 The introduction of alkyl dimethyl benzyl ammonium chloride (catamine AB) activates the degreasing properties of soda ash, which improves the quality of degreasing, facilitates further liquid processing of pork. pb Technological use of the composition is as follows. After rinsing, pigskin skins using a standard procedure are chemically degreased at the following ratio of components, g / l: Soda ash3-5 Catamin AB0.5-1.0 Solution temperature 32-38 ° С with liquid ratio 1.0 -1.5. The process is carried out in the drum for 1.5-2.0 hours. Then it is washed out by the composition with the following ratio of components, g / l: Soda ash 10-15 Sodium sulfide 0.3-0.5 Katamin AB0.3-0.5 which provides a weakening of the connection between the bristles and the dermis. The process is carried out at a liquid ratio of 2-2.5 and 36-38 C for 14-16 hours. Further processing of the hides is carried out according to a standard procedure. EXAMPLE 1 A batch of pigs in light pigs is drummed with the following composition, g / l: Soda Ash 3.0 Keatamin AB0.3 Solution temperature 32-38 ° C with a liquid ratio of 1.0-1.5 and duration Processing 1.5-2 hours. To weaken the connection between the bristles and the dermis during soaking, a composition containing g / l is used: Calcined soda 10.0 Sodium sulphide 0.3 Catamin AB 0.3 The process is carried out at 36-38 ° C, a liquid coefficient of , 0-2.5 within 14-16 hours. Further processing of the hides is carried out according to a standard procedure. EXAMPLE 2 A batch of pig skin of an average pig is defatted as in Example 1, but with a composition with the following ratio of components, g / l: Soda Ash Catamin AB and sweating is performed with a composition containing g / L: Soda Ash 14.0 Sulfurous sodium0.4 Katamin AB0.4 Example 3. A batch of pigs' skins of an average degreased as in example 1, yo with the following ratio of components, g / l: Soda calcinated 5.0 Catamin AB1.0 and When draining, the following composition is used, g / l: Calcium soda15.0 Sodium sulphate0.5 Katamine AB0.5 EXAMPLE 4 (as known). As a control variant, the medium pig batch is treated with a composition containing, g / l: Soda ash sodium Sulfite Sodium sulphide Surfactant (OP-10) Fat indicators at various stages of the technological process of hides processed with the proposed and known compositions are given in the table.

The application of the proposed composition improves the quality of the degreasing of pork skins, which makes it possible to facilitate further liquid processing of the hides.

Claims (3)

1. A composition for degreasing porcine raw materials, including soda ash, a surfactant and water, characterized in that, in order to improve the quality of processing, it contains alkyl dimethyl benzyl ammonium chloride as a surfactant in the following ratio of components, g / l: Soda Ash3-15 Alkyldimethylbenzyl, 3-1.0. ammonium rest Water 2. The composition according to claim 1, in that it, in order to weaken the connection of the bristles with the dermis, it additionally contains sodium sulphide at the following ratio of the components, g / l: Soda Ash 10-15 Alkyldimethylbenzylammonium chloride, 3-0.5 Sulfur, sodium0,3-0,5 Water. Rest Sources of information taken into account in the examination 1. Gaidarov, L.P. Skin technologists. M., 1974, p. 88-90. -2 Leather and footwear industry. 1978, NO 5, p. 49-52. 3.Metodika production of leather for the upper shoes, lining, fancy goods, clothing and gloves of pork raw materials. M., 1977 (prototype).