SU98661A1 - Method for preserving whale hides - Google Patents

Description

When processing whale leather raw materials, the processes of mechanical processing and preserving are conducted separately. At the same time, the process of salting lasts up to 20 days.

The proposed method of preserving whale leather raw material using table salt makes it possible to combine preservation with the process of mechanically separating the fat layer from the leather raw material and freeing the latter from armor, which significantly speeds up the process and improves the technology of primary processing of whale leather.

The peculiarity of the method is that the treatment process is carried out for eight hours in a rotating drum with the addition of dry salt in an amount of 30-35% of the weight of the raw material, after which the leather raw material is washed with warm water and wring out.

The method is carried out as follows.

The skin removed from the whale is cut into separate plates and the leather raw material is separated from the fat by sawing. Fat raw materials are transferred to the fat-frying shop, and leather raw materials go to bedding for up to two days to weaken the epidermis (armor).

by autolysis, after which it is preserved.

The canning is carried out in a rotating drum with dry salt without the addition of water. Salt is consumed 30-35% of the weight of the pair of raw materials. Duration of processing in the drum up to 8 hours.

When this occurs, the salt is partially dissolved (according to the moisture content of the raw materials) and the formation of an extremely saturated brine. The brine solution provides preservation of raw materials, and an excess of granular salt contributes to mechanical stripping of the epidermis (armor) and destruction (tearing) of loose fatty tissue due to the friction and pressure of the raw material, as well as multiple compressions and strains.

As the fatty tissue is destroyed, the released fat flows into the drum. The fatty liquid accumulated in the drum and the litter are drained from time.

With the complete destruction of fat cells, the raw material loses elasticity, becomes soft, richly impregnated with fat-ray fluid. The degree of elasticity determines the amount of processing.

By the end of the treatment, a temperature increase is observed, which: 1 98661 is not recommended to be allowed above 30 °. In order to dissolve the granular salt, more fully impregnate the raw material with a saturated salt solution, separate the oily fat and wash the raw material from the remnants of the destroyed epidermis layer, at the end of processing the raw material in the same drum is washed with warm (25-30 °) water for 1 hour. The subject of the invention. A method for preserving whale leather raw materials using. -V. . :.: - ;: salt, characterized in that, in order to combine it with the process of mechanically separating the fatty layer from the leather raw material and freeing the latter from armor, the treatment is carried out for eight hours in a rotating drum with the addition of salt in a dry in the amount of 30-35% by weight of the raw material, after which the leather raw material is washed with warm water and squeezed in a known manner,