Patent ID: 6957554

Claim:
A novel dehairing and fibre opening process for complete elimination of lime and sodium sulfide suitable for all kind of raw materials, comprising: i. adding water in an amount from about 5% to about 10% w/w, with respect to the weight of soaked hides/skins, and proteolytic enzyme, exhibiting activity at a temperature from about 25° C. to about 400° C. and a pH from about 7.5 to about 11.0, optionally in the presence of silicate salt, to prepare a paste, ii. applying the paste, as formed in step (i), on the flesh or grain side of the hides/skin, iii. piling the pasted hides/skins, grain to grain, for a period of not less than 12 hours followed by removing the hair to get dehaired hides/skins, iv. treating the dehaired hides/skins, as obtained in step (ii), with silicate salt in presence of water, preferably under stirring condition, for a period of not less than 3 hrs, followed by fleshing to get pelt for subsequent post fibre opening processes.