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Tan sheepskin environmental protection tanning process

A kind of sheepskin and environmental protection technology, applied in the direction of leather manufacturing, leather degreasing, leather impregnation, etc., can solve the problems of export restrictions, the impact on the health of users, etc., and achieve the effect of increased use, improved product quality, and reasonable tanning process

Inactive Publication Date: 2011-12-21
HUASI HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is nitrated with formaldehyde or aldehyde aluminum. Because there is too much free formaldehyde in the skin board, it will affect the health of the user and the export will be restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] The environmental-friendly tanning process of beach sheepskin of the present invention takes the following steps:

[0010] 1. Spray water to return moisture: the purpose is to prepare for the next process, water temperature: 30°C, penetrant: 1ml / l, spray evenly on the skin board with a sprayer, and the board and the board are relatively quiet until overnight;

[0011] 2. Hair removal: the purpose is to remove grass burrs and stolen goods, and the required equipment is a single-blade dry shovel with a speed of 800 rpm;

[0012] 3. Water immersion: water temperature: 35°C, time: overnight, liquid ratio: dry skin: water = 1:20, required equipment: glass fiber reinforced plastic groove or stainless steel groove, the speed should not exceed 16 rpm, salt: 30g / l , penetrating agent: 0.5-1ml / l, fungicide: 1g / l, sliding at intervals after hypodermis;

[0013] 4. Degreasing: temperature: 40°C, time: 1 hour, soda ash: 1g / l, detergent: 3ml / l, washing powder: 2ml / l, paddle at inter...

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PUM

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Abstract

The invention discloses an environment-friendly tanning process for Tan sheepskin, which is characterized in that it adopts the following steps: 1) spraying water to return moisture; 2) beating wool; 3) soaking in water; 4) degreasing; 5) re-immersing in water; 6) degreasing again ;7) fleshing; 8) pickling; 9) tanning; 10) standing overnight; 11) water rejection; 12) brushing with fatliquoring agent; 13) standing overnight; 14) drying; 15) still damp; 16) Dry shoveling; 17) rinsing; 18) aluminum liquid brushing; 19) drying; 20) dry shoveling; 21) storage. The present invention aims at the hardening of the leather board, hair loss of needles or excessive free formaldehyde in the prior art. After analysis, it is because the traditional process of tanning the tanned surface or nitrating with formaldehyde or aldehyde and aluminum causes the leather surface of the leather board to be tanned. Unsatisfactory, high formaldehyde content and other problems. Now the skins are degreased and then pickled, tanned, brushed with fatliquoring agent, brushed with aluminum liquid, etc., so that the tanning process of Tan sheepskin is more reasonable, the product quality is greatly improved, and the use is increased.

Description

Technical field [0001] The invention belongs to a method for treating animal fur, and in particular relates to a new process for the environmental protection of tanning sheepskin. Background technique [0002] Tan sheepskin belongs to the first of the five treasures in Ningxia, and most of them belong to the traditional tanned surface tanning. There are many shortcomings: either the leather board is hard, or there is a phenomenon of needle slipping and hair loss. In addition, it is nitrated with formaldehyde or aldehyde aluminum. Because there is too much free formaldehyde in the skin board, it will affect the health of the user, and the export will be restricted. To sum up, other environmentally friendly nitration methods should be used instead. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a new process for the environmental protection of tanned sheepskin. The produc...

Claims

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Application Information

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IPC IPC(8): C14C3/02C14C5/00C14C9/02C14C1/04C14C1/08C14C3/04C14B1/02
Inventor 贺小党郗铁庄宋志义
Owner HUASI HLDG CO LTD
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