| 简介 |
PURPOSE : A process for preparing natural leather is provided to maintain texture, smoothness, and elasticity of animal natural leather, and to prepare natural leather with good smoothness and restitution.CONSTITUTION : A process for preparing natural leather using raw leather comprises the steps of : providing pelt; removing lime and protein contained in pelt using a pre-tanning composition in which a deliming component and an enzyme agent are contained to obtain wet blue from which a spilt layer is removed from pelt using a tanning composition; performing re-tanning process using a re-tanning composition containing 150~200 parts by weight of water, 1.5~5.0 parts by weigh of tanning agent, 1.0~2.0 parts by weight of branched emulsifier, 1.0~3.0 parts by weight of water-soluble acrylic tanning agent; performing a dye process by adding 100~150 parts by weight of water and dyes based on oily leather of 100.0 parts by weight; performing fatliqouring by adding 150~200 parts by weight of water and fatliquor based on the colored leather of 100.0 parts by weight; and obtaining the fabric by drying the fabric passed.COPYRIGHT KIPO 2010 |
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