Coloring agent capable of preventing fading of leather and preparation method of coloring agent

A dyeing agent and leather technology, applied in the field of dyeing agents, can solve the problems of leather feel, poor brightness, greater damage to the leather surface, and great damage to the leather material, so as to improve the fastness to washing and sunlight, improve the Effects of color stability, good environmental compatibility

Inactive Publication Date: 2018-02-06
安徽鞋匠世家新型鞋材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Leather is generally dyed with acid dyes, metal complex dyes or mordant dyes. Among them, dyeing with acid dyes is only dyed by ionic bonds, the wet fastness is quite poor, and the blackness is poor; dyeing with metal complex dyes is very harmful to the leather material. Large, the damage to the leather surface after dyeing is relatively large, and the molecular structure of the dye contain...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of dyeing agent that prevents leather from fading, and described dyeing agent comprises following raw material that forms by weight: 5 parts of curcumin, 10 parts of chestnut shell pigments, 1 part of dibutyl phthalate, 6 parts of triglycerides, gelatin 2 parts, 7 parts of wax ester, 2 parts of viola extract, 3 parts of nano-composite less chrome tanning auxiliary, 0.5 part of surfactant, 0.8 part of diluent, 40 parts of deionized water.

[0016] The preparation method of the dyeing agent for preventing leather fading comprises the steps of: weighing raw materials according to the parts by weight, mixing curcumin, dibutyl phthalate, triglycerides, Viola chinensis extract, deionized water Mix, stir for 15 minutes, heat up to 50°C, add the blend of chestnut shell pigment and gelatin, stir for 15 minutes, continue to add wax esters, nano-composite less chrome tanning auxiliaries, surfactants, diluents in sequence, keep stirring for 1 hour, Get the finished product. ...

Embodiment 2

[0018] A kind of dyeing agent that prevents leather from fading, and described dyeing agent comprises following raw material that forms by weight: 10 parts of curcumin, 5 parts of chestnut shell pigments, 2 parts of dibutyl phthalates, 3 parts of triglycerides, gelatin 3 parts, 4 parts of wax ester, 5 parts of viola extract, 1 part of nano-composite less chrome tanning auxiliary, 1 part of surfactant, 0.5 part of diluent, 50 parts of deionized water;

[0019] Wherein, the surfactant is monoglyceride stearate.

[0020] The preparation method of the dyeing agent for preventing leather fading comprises the steps of: weighing raw materials according to the parts by weight, mixing curcumin, dibutyl phthalate, triglycerides, Viola chinensis extract, deionized water Mix, stir for 10 minutes, heat up to 70°C, add the blend of chestnut shell pigment and gelatin, stir for 5 minutes, continue to add wax esters, nano-composite chrome-less tanning auxiliaries, surfactants, diluents in sequ...

Embodiment 3

[0022] A kind of dyeing agent that prevents leather from fading, and described dyeing agent comprises following raw material that forms by weight: 7 parts of curcumin, 7 parts of chestnut shell pigments, 1.5 parts of dibutyl phthalate, 4 parts of triglycerides, gelatin 2.5 parts, 5 parts of wax ester, 3 parts of viola extract, 2 parts of nano-composite less chrome tanning auxiliary, 0.7 part of surfactant, 0.6 part of diluent, 45 parts of deionized water;

[0023] Wherein, the surfactant is sodium dodecylbenzenesulfonate;

[0024] The diluent is ethyl acetate.

[0025] The preparation method of the dyeing agent for preventing leather fading comprises the steps of: weighing raw materials according to the parts by weight, mixing curcumin, dibutyl phthalate, triglycerides, Viola chinensis extract, deionized water Mix, stir for 13 minutes, heat up to 60°C, add the blend of chestnut shell pigment and gelatin, stir for 10 minutes, continue to add wax esters, nano-composite low-chro...

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PUM

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Abstract

The invention discloses a coloring agent capable of preventing the fading of leather and a preparation method of the coloring agent. The coloring agent contains the following raw materials in parts byweight: 5-10 parts of curcumine, 5-10 parts of a chestnut shell pigment, 1-2 parts of dibutyl phthalate, 3-6 parts of triglyceride, 2-3 parts of gelatin, 4-7 parts of wax ester, 2-5 parts of a herbaviolae extracting solution, 1-3 parts of nano-composite semi-chrome tanning aid, 0.5-1 part of a surfactant, 0.5-0.8 part of a diluent and 40-50 parts of deionized water. The coloring agent is safe and environment-friendly, and the leather processed by virtue of the coloring agent has relatively good wear resistance, washing resistance and light fastness and is unlikely to fade.

Description

technical field [0001] The invention relates to a dyeing agent, in particular to a dyeing agent for preventing leather fading and a preparation method thereof. Background technique [0002] Leather is generally dyed with acid dyes, metal complex dyes or mordant dyes. Among them, dyeing with acid dyes is only dyed by ionic bonds, the wet fastness is quite poor, and the blackness is poor; dyeing with metal complex dyes is very harmful to the leather material. Large, the damage to the leather surface after dyeing is relatively large, and the molecular structure of the dye contains heavy metal ions; while the mordant dye needs to add hexavalent chromium ions during the dyeing process, which pollutes the environment very much, and the dyeing process is also relatively complicated. , brightness are all relatively poor; In addition, the dyeing effect of the existing leather dyes is not good, and it is often necessary to fix the color, but the general chemical raw materials are stil...

Claims

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Application Information

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IPC IPC(8): D06P3/32D06P1/34D06P1/44D06P1/46D06P1/651D06P1/653
CPCD06P3/32D06P1/34D06P1/44D06P1/46D06P1/65125D06P1/653
Inventor 周亚东尹斌
Owner 安徽鞋匠世家新型鞋材科技有限公司
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