Leather production process

A production process and leather technology, applied in leather manufacturing, leather softening, leather drying, etc., can solve the problems of poor leather quality, poor durability, and failure to satisfy consumers, and achieve cost saving, strong durability, and simple operation Effect

Inactive Publication Date: 2015-09-09
卢家雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Leather is composed of natural protein fibers tightly woven in three-dimensional space, and has a special grain layer on its surface, which has natural grain and luster, and feels comfortable, so it is widely used by people. However,

Method used

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Embodiment Construction

[0020] A kind of leather production process described in the embodiment of the present invention is characterized in that comprising the following steps:

[0021] 1) Batching: classify the raw hides with similar size and thickness, and put them in the same drum for processing;

[0022] 2) Soaking in water: Soak the raw skins after batching to restore them to the state of fresh skins, and add a water-soaking aid to the water to speed up the soaking of water;

[0023] 3) Hair removal and degreasing: remove the oil in the cells of the skin and the hair on the surface of the original skin to reveal the natural and fine grain surface;

[0024] 4) Liming: add alkali to make the skin swell to a certain thickness, which is good for splitting;

[0025] 5) Deliming and pickling: remove the excess alkali in the skin during liming; add appropriate acid to neutralize the excess alkali to reach the pH value required for tanning;

[0026] 6) Tanning: Use trivalent chromium ions to connect ...

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PUM

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Abstract

The invention discloses a leather production process, which comprises the steps of 1) lot grouping: classifying the raw hides of leathers similar in width size and thickness; 2) soaking in water: soaking the raw hides in water after the lot grouping step; 3) unhairing and degreasing: removing grease in hide cells and hairs on the surfaces of the raw hides; 4) liming: adding alkali to expand the hides to a certain thickness for facilitating the splitting operation; 5) deliming and pickling: removing redundant alkali in the raw hides during the liming step; 6) tanning: connecting collagen groups in hide fibers by means of trivalent chromic ions, and enhancing the tensile strength and the anti-tear intensity of the leather; 7) re-tanning: selecting a retanning agent of better in filling effect to retan the tanned leather; 8) dyeing; 9) fatliquoring; 10) drying; 11) staking; 12) finishing; 13) examining and warehousing finished products. The leather production process is simple in operation, and the produced leather is good in durability. Meanwhile, the cost of manufacturers is saved, and the requirements of customers can be met at the same time.

Description

technical field [0001] The invention relates to the field of leather processing, in particular to a leather production process. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space, and has a special grain layer on its surface, which has natural grain and luster, and feels comfortable, so it is widely used by people. However, the leather in the prior art The processing technology is relatively chaotic, the quality of the processed leather is poor, and the durability of various leather products made with it is poor, which cannot meet the needs of consumers. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a leather production process, the production process is simple to operate, the produced leather has strong dura...

Claims

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Application Information

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IPC IPC(8): C14B1/02C14C1/04C14C1/06C14C1/08C14B1/40C14B1/58C14C3/06C14C9/02C14C11/00C14C15/00
CPCC14B1/02C14B1/40C14B1/58C14B2700/01C14B2700/07C14B2700/20C14B2700/28C14C1/04C14C1/06C14C1/08C14C3/06C14C9/02C14C11/00C14C15/00
Inventor 卢家雄
Owner 卢家雄
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