Procedure of carding and decoloration of the carded fibers in skins of any kind. (Machine-translation by Google Translate, not legally binding)

摘要

"PROCEDURE OF CARDING AND DECOLORATION OF CARDED FIBERS IN SKINS OF ANY KIND", starting from the separation of the first and second layer of the skin, tanning the latter and grinding it after is essentially characterized because the operation of the leather carding is carried out. treat which leads to the formation of a plurality of fibers that are discolored by the application of an aqueous solution based on alumina sulfate, alum rock and soda hyposulfite, the latter being the fixative component, ie the which prevents the subsequent coloring of said fibers when the skin is treated and colored. (Machine-translation by Google Translate, not legally binding)