Production technology of contrast-effect automobile seat cushion leather

A production process and two-color effect technology, applied in the field of leather industry, can solve the problems of lack of elasticity and softness, loss of natural characteristics of leather, lack of aesthetics, etc., to achieve plump and elastic hand feeling, increase ornamental value, and excellent combination effect Effect

Active Publication Date: 2014-03-26
HAINING SENDE LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ⑴In order to meet the nearly stringent performance and testing requirements of automotive interior leather, leather products used for automotive interiors at home and abroad, especially car seat cushions, have always been hard in appearance, lacking elasticity and softness, and losing leather as a natural product due natural characteristics;
[0004] ⑵The color is monotonous and lacks aesthetics

Method used

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  • Production technology of contrast-effect automobile seat cushion leather

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The specific production process is: grouping→soaking→removing flesh→liming→removing flesh and skin→deliming→softening→picking→tanning→aging→shaving→rewetting→retanning→neutralization→dyeing and fatliquoring→ Squeezing and stretching → stretching drying → vibration → falling soft → finishing (base coating → embossing → coloring layer → effect layer → strong wear-resistant top coating) → measuring scale storage. in:

[0023] Liming is the use of alkaline substances to achieve rapid depilation and loose fur fibers after fleshing, while removing the fibrous matrix. Use NaHS to replace part of Na 2 S, the ratio is controlled at 1:1, plus 2 times the amount of lime, dissolved in water with a total concentration of 10wt%, the liquid ratio of the fur to the aqueous solution is 100:100, and the reaction is added step by step for 6 hours at the same time, and the liquid ratio increases to 100: After 200, continue to react for about 12h. Replace part of Na with NaHS 2 S to red...

Embodiment 2

[0029] In this embodiment, a chrome-free tanning agent is used in the retanning step, and the chrome-free tanning agent is: in terms of mass ratio, the synthetic tanning agent Relugan GM:TARA extract is 7:3. In the finishing step, the water-based pigment paste is CAR-TONE, the matting agent is 4683, the softener is or SPELL1070, the hand feeling agent is ER, the crosslinking agent is YK, the medium-soft polyurethane resin is CTR, the medium-hard polyurethane resin is PE, and the matting polyurethane is UD4, bright polyurethane is 91UD. All the other are identical with embodiment 1.

Embodiment 3

[0031] In this embodiment, in the finishing step, the effect layer roller coating process controls the coating amount to 4g / m 2 . All the other are identical with embodiment 1.

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Abstract

The invention relates to a production technology of contrast-effect automobile seat cushion leather. The protection technology comprises the steps of liming: dissolving Na2S, NaHS and lime into water in a mass ratio of 1:1:2 to form a liming alkali liquor, reacting fur with the liming alkali liquor in a liquor ratio of 100:100 for 6 h, adding the liming alkali liquor step by step to enable the liquor ratio to increase to 100:200, and continuously reacting for 12 h; retanning: for every 100 parts of fur, adding 100 parts of water, 1 part of a pre-fatting agent and 3 parts of a chrome tanning agent or a chrome-free tanning agent, reacting at the normal temperature for 1 h, adding 2 parts of sodium formate, reacting at the temperature of 40 DEG C for 1 h, and controlling the pH in a range of 3.6-4.0; and finishing: the finishing comprises the steps of roller coating of a bottom layer, embossing, spraying of a color layer, roller coating of an effect layer and spraying of a top layer. The leather produced through the technology is soft, fine in grain side, full in hand feeling, elastic, safe and environment-friendly and has characteristics of wear resistance, folding endurance, light resistance, color migration resistance and the like; and ornamental and pleasant characteristics of the leather are added due to roller coating of the effect layer, and the rigid and non-flexible appearance of ordinary automobile seat cushion leather is changed.

Description

technical field [0001] The invention belongs to the technical field of tanning industry, in particular to a production process of two-color effect automobile seat cushion leather. Background technique [0002] At present, mid-to-high-end cars are equipped with real leather interior leather, which is usually made of cowhide through processes such as fleshing, deliming, softening, tanning, retanning, dyeing, drying, primer, embossing, coloring, and top coating. , the existing automotive interior leather generally has the following problems: [0003] ⑴In order to meet the nearly stringent performance and testing requirements of automotive interior leather, leather products used for automotive interiors at home and abroad, especially car seat cushions, have always been hard in appearance, lacking elasticity and softness, and losing leather as a natural product due natural characteristics; [0004] ⑵The color is monotonous and lacks aesthetics. [0005] In order to enhance the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C1/00C14C3/02
Inventor 赵佳祝妙凤宋洪斌宋保国俞海明沈忠英李江东
Owner HAINING SENDE LEATHER
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