PRODUCT FOR PRETANNING AND RETANNING HIDES AND SKINS AND PROCESS FOR PREPARING THE SAME

摘要

the invention relates to a product of pretabacire - retanare leather, characterized by that the product contains hydrolyzed proteinobtained by acid hydrolysis of reusable materials leather, results in croitul girls shoemaking and acrylic polymer.the product of pretabacire retanare apply to the processing of bovine hides in the ratio of 3.... eight percent.