Cutting and double-face leather integrated dyeing process for tan sheep skin
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United States of America Patent
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Jun 20, 2017
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app pub date -
Nov 7, 2014
filing date -
Dec 25, 2013
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Abstract
A cutting and double-face leather integrated dyeing process for Tan sheep skin, which comprises the following steps: cutting→washing with water→retanning→primary dyeing→primary color fixing→secondary dyeing→fatliquoring→secondary color fixing→bleaching→drying→a finished product. Tan sheep skin leather boards and fleeces dyed by the process of the invention have no cross color and color fading with each other, a high color fastness, and uniform dyeing; the prepared Tan sheep skin products such as clothing, etc., not only have the characteristics of a high added value and good practicability, but also can more largely increase product benefits and lower the production cost.
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