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用硝面法熟毛皮,皮板洁白、轻柔有弹性,但怕水怕潮湿。受水湿后,皮内的芒硝溶化流失,毛皮干后皮纤维粘集起来,皮板变硬,有时还掉毛,俗称走硝。毛皮一旦走硝,可配制矾碱食盐水进行补救。配方:明矾5两、面碱0.5两、食盐5两、水10斤。用热水、温水、冷水分别将明矾、面碱、食盐化开。将碱水慢慢地倒入冷却后的明矾溶液中,并用木棍不断搅拌,再加入食盐水。
Law with the nitro-cooked fur, skin white, soft and flexible, but fear of fear of moisture. After being wet with water, the mirabilite is dissolved and lost in the skin, and the dried fibers of the fur dry up, the skin hardens, and sometimes the hair is lost. Once the fur to take the nitrate, can be formulated to restore the vitriol saline. Formula: Alum 5 two, surface base 0.5 two, salt 5 two, water 10 pounds. With hot water, warm water, cold water, respectively, alum, surface alkali, salt to open. Slowly pour the alkaline water into the cooled alum solution and continue mixing with a wooden stick before adding salt water.