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Cow leather fatting agent and fatting process

A technology of fatliquor and cowhide, which is applied in the directions of leather impregnation, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc., which can solve the problem of insufficient adhesion between oil and leather , Grease shedding and other problems, to achieve the effect of improving the adhesion and bonding effect, prolonging the service life and improving the stability

Inactive Publication Date: 2020-06-23
漳州信德皮革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The common problem in the existing fatliquoring process is that the adhesion between the oil and the leather is insufficient, and the oil is prone to fall off during the long-term use of the leather

Method used

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  • Cow leather fatting agent and fatting process
  • Cow leather fatting agent and fatting process
  • Cow leather fatting agent and fatting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 is a kind of bovine leather fatliquoring agent and fatliquoring process disclosed by the present invention, and the fatliquoring agent comprises the following components by weight:

[0036]

[0037]

[0038] The preparation method of sulfonated phospholipid is:

[0039] A1. Chlorination of phospholipids: heat the phospholipids to 65°C, then pass in chlorine gas for chlorination reaction, and control the density of chlorinated phospholipids to 1.05g / mL;

[0040] A2. Sulfonation of chlorinated phospholipids: quantitatively send chlorinated phospholipids to the glass tube sulfonation reactor through a metering pump, and set the jacket circulating water temperature to 70°C; SO 3 The dry gas is passed into the sulfonation reactor through the pipeline, and the chlorinated phospholipid and SO 3 The gas undergoes a sulfonation reaction to obtain a sulfonated phospholipid pre-product;

[0041] A3. Neutralization: Use dilute NaOH solution to neutralize the pH...

Embodiment 2

[0047] Embodiment 2 is a kind of bovine leather fatliquoring agent and fatliquoring process disclosed by the present invention, and the fatliquoring agent comprises the following components by weight:

[0048] components number of copies Sulfonated phospholipids 30 Sodium dodecyl benzene sulfonate 15 fatty acid glycerides 2 Sodium dinaphthylmethane disulfonate 1.5 Red phosphorus 0.71 graphite 0.29 gallic acid 0.3 Deionized water 10

[0049] The preparation method of sulfonated phospholipid is with embodiment 1;

[0050] The specific steps of the fatliquoring process are the same as in Example 1.

Embodiment 3

[0051] Embodiment 3 is a kind of bovine leather fatliquoring agent and fatliquoring process disclosed by the present invention, and the fatliquoring agent comprises the following components by weight:

[0052] components number of copies Sulfonated phospholipids 60 Sodium dodecyl benzene sulfonate 35 fatty acid glycerides 5 Sodium dinaphthylmethane disulfonate 5.5 Red phosphorus 3.57 graphite 1.43 gallic acid 0.5 Deionized water 40

[0053] The preparation method of sulfonated phospholipid is with embodiment 1;

[0054] The specific steps of the fatliquoring process are the same as in Example 1.

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PUM

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Abstract

The invention relates to a cow leather fatting agent and a fatting process. The fatting agent is prepared from the following components in parts by weight: 30 to 60 parts of sulfonated grease, 15 to 35 parts of sodium dodecyl benzene sulfonate, 2 to 5 parts of fatty glyceride, 1.5 to 5.5 parts of sodium dinaphthyl methane sulfonate, 1 to 5 parts of a flame retardant, 0.3 to 0.5 part of an antioxidant and 10 to 40 parts of deionized water. The preparation method specifically comprises the following preparation steps: S1, fat liquoring: adding a fat liquoring agent into a rotary drum, conveyingdyed cow leather into the rotary drum, and carrying out a fat liquoring treatment for 1-1.5 hours at a temperature of 50-55 DEG C in the rotary drum so as to obtain a fat liquoring leather pre-finished product; S2, wringing and stretching: conveying the pre-finished product to wringing and stretching to remove water on the surface; S3, vacuum drying: conveying the pre-finished product to a vacuumdrying machine, and carrying out a drying treatment to prepare dry leather; and S4, hanging and airing: hanging and airing the dried leather for 24 hours to obtain a finished fat-liquoring leather product. The used fat liquoring agent has a good adhesion performance, and thus grease on the prepared fat-liquoring leather has a good anti-stripping performance.

Description

technical field [0001] The invention relates to the technical field of leather preparation, in particular to a bovine leather fatliquoring agent and a fatliquoring process. Background technique [0002] Cowhide is finished leather made from raw cowhide after dozens of tanning processes. The tanning process includes degreasing process, deliming process, pickling process, tanning process, dyeing process, fatliquoring process, spraying process and other main processes. Cow leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. , the leather body has good fullness and elasticity, and good physical properties. Therefore, cowhide is generally used as leather for high-end products, and its price is higher than that of bulk leather. [0003] Since the raw leather after degreasing is hard and easy to crack, the fatliquoring process is usually u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02
CPCC14C9/02
Inventor 李清跃
Owner 漳州信德皮革有限公司
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