SU914629A1 - Composition for fat- liquoring leathers - Google Patents

Description

The invention relates to light industry, namely to the leather industry, and can be used for fattening leather.

Known composition for fattening leather, containing natural fats and leather- ⁵ emulsion, consisting of mineral oil 54-74% and emulsifier - sodium salts of naphthenic acids 4-13%

of _ten

ΙΖ 10

The disadvantages of this composition include a weak penetrating ability, which causes salinization of the skin. In addition, the presence in the composition of the fattening mixture of a large amount of mineral maela leads to a decrease in the performance properties of the finished product.

The closest to the proposed technical essence and the achieved effect is a composition for fattening leather, _m containing synthetic, fat, spun oil, fish oil and sulfonated fattening agent "- sulfonated blubber [2].

2

However, the composition uses an expensive and scarce reagent - sulfonated blubber.

The purpose of the invention is to reduce the cost of the composition by reducing the consumption of natural fats.

This goal is achieved by using a mixture consisting of sodium salts of naphthaphenic acids and sodium salts of naphthenic acids, taken in a ratio of 1: 20-20: 1, in the following composition:% by weight:

Synthetic, fat 40-70

Spindle oil 5-10

Fish oil 3-20

Sodium salts of sulfonaphthenic acids 2-40

Sodium salt

naphthenic acids 1-40

The composition is prepared as follows. ·

Synthetic fat, spun oil,

fish oil and mixture consisting of nat3 914629

four

salts of sulfonaphthenic and naphthenic acids, heats up to 60-70 ° C and mix. Then prepare an aqueous emulsion for fattening leather.

The composition uses sodium salts of 5 sulfonaphthenic and naphthenic acids with an acid number of 140 - 290.

The operating parameters of the process of fattening correspond to the typical method of processing leather of this type. <0

Example 1. Bovine leather with a refined front surface is greased with the following composition,%:

Synthetic fat 70.

Military oil 5

Fish oil 4

Sodium salts of sulfo "naphthenic acids 20

Sodium salt

naphthenic acids 1

PRI mme R 2. Elastic skin from the base. Fat the following composition,%:

15

20

Synthetic fat 50 Spun butter five Fish fat ten Sodium salt sulfo naphthenic acids five Sodium naphthenic salts acids thirty Example Glove glove goat fat with the following composition,%: Synthetic fat 40 Spun butter ten Pby fat ten Sodium salt sulfo naphthenic acids 20 Sodium salt naphthenic acids 20

25

ST

35

PRI me R 4. Elastic skins for shoe tops are greased with the following composition,%:

Synthetic fat 40 Fish fat ' five Spun butter five Sodium salt sulfo 45 naphthenic acids 40 Sodium salt naphthenic acids ten PRI and m er 5. Leather chrome method yes tanning for the top of the shoe is fat barely- 53 blowing composition,%: Synthetic fat 50 Fish fat 3 Spun butter five

Sodium salts of sulfonaphthenic acids 2

Sodium salts of naphthenic acids 40

The proposed composition is much cheaper known. The cost of 1 kg of sulphurized brewing is 76 kopecks, and the composition of sodium salts of naphthenic, sul — phonaphenic acids costs 4-7 kopecks. per kilogram.

The advantage of the proposed composition is that used in. It has a fatty agent that is biodegradable in wastewater.

The semi-industrial and laboratory tests show that the leathers treated with this composition have physical and mechanical indicators at the control level, where sulfated blubber is used as a sulfated fattening agent.

When the organoleptic evaluation of the finished product difference in the experimental and control skin is not observed.

Claims (2)

Claim The composition for fattening leather, containing synthetic fat, spun oil, fish oil and sulphonated fattening agent, is attributed to the fact that, by reducing the consumption of natural fats, a mixture consisting of sodium sulphate is used to reduce the consumption of natural fats. salts of sulfonaphthenic acids and sodium salts of naphthenic acids, taken in the ratio of 1:20 - 20: 1, in the following ratio, wt.%: Synthetic fat 40-70 Spindle oil 5-10 Fish oil - 3-20 Sodium salts of sulfonaphthenic acids 2-40 Sodium salt naphthenic acids 1-40 The sources of information taken into account in the examination 1. Levenko, P.I. Zhirovka and Properties of Leather, M., 1970, p. 61-62. 2. Levenko, P.I. Fattening and skin properties. M., 1970, p. 80-103 (prototype).