Animal fur complex enzyme depilatory and application thereof

Abstract

The invention discloses an animal skin compound enzyme depilatory and the application of the depilatory. The depilatory comprises compound unhairing enzyme and additive, wherein components of the compound unhairing enzyme comprise neutral protease or alkaline protease 5-20 parts by weight, elastase 0.1-10 parts by weight and lipase 0.5-15 parts by weight. The compound enzyme depilatory which is provided by the invention can be suitable for unhairing with piled enzyme unhairing methods, piled enzyme coating unhairing methods and barrate inside bath unhairing methods in the manufacturing processof various common animal skins and leathers for various applications. The compound enzyme depilatory which is provided by the invention solves the technical problems in an existing technique that enzyme depilatory has large enzyme consumption, long unhairing time and large collagen loss, grain tightness of leathers is easily broken, the leathers are hollow and loosened, hairs can not be completely removed and the like. The pollution of sulphide is eliminated radically, and simultaneously the use value of the hairs is also increased.

Description

1. Technical field

[0001] The present invention relates to animal skin depilation technology, more specifically, relates to a kind of animal skin depilatory agent containing depilatory enzyme and auxiliary agent, is used for realizing the sulfide-free biological depilation of leather raw material skin, is suitable for the depilation of all animal skins, belongs to Clean leather production field. 2. Background technology

[0002] In the tanning process, the hair on the raw hide is useless, so the removal of hair is one of the main purposes of the tanning preparation section. The traditional hair removal method based on sulfide (sodium sulfide and sodium hydrogen sulfide) and lime has been widely used due to its advantages of easy availability of materials, low cost, simple operation, easy control, and high hair removal efficiency, and it is still It is the main depilation method in the industrial production of tanning. However, this method consumes a large amount of sulfide...