Efficient-leveling leather dye fixation aid

A technology for color-fixing auxiliaries and leather, applied in dyeing, textile and papermaking, etc., can solve the problems of increasing dyeing cost, affecting performance, low activity of cationic color-fixing agent, etc., reducing chromaticity and processing difficulty, reducing The amount of dye, the effect of improving the fixing effect

Inactive Publication Date: 2017-05-31
肇庆高新区飞越信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used cationic color fixing agent may increase the dosage due to low activity, thereby increasing the dyeing cost and reducing the hardn

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add 3 parts of trimethylolpropane triacrylate and 2 parts of hexamethylolmelamine hexamethyl ether to 8 parts of polyvinyl butyral, and raise the temperature to 125-135℃ at a heating rate of 5℃ / min Heat preservation and mixing for 30 minutes, then add 5 parts of modified hydrogenated rosin glyceride, 2 parts of nano rubber powder and 0.5 part of epoxy soybean oil, continue heat preservation and mixing at 125-135 ° C for 30 minutes, and then naturally cool to room temperature to obtain material I;

[0026] (2) Add 12 parts of polyethylene oxide and 3 parts of anionic polyacrylamide to 200 parts of water, and heat up to a reflux state at a heating rate of 10°C / min and keep mixing for 15 minutes, then add 2 parts of polyvinyl acetate and 2 parts of three Triallyl cyanate, continue to reflux insulation and mix for 15min, then naturally cool to room temperature to obtain material II;

[0027] (3) Add 1 part of hydrogenated palm oil and 0.5 part of lanolin alcohol to 15 p...

Embodiment 2

[0032] (1) Add 3 parts of trimethylolpropane triacrylate and 2 parts of hexamethylolmelamine hexamethyl ether to 10 parts of polyvinyl butyral, and raise the temperature to 125-135℃ at a heating rate of 5℃ / min Heat preservation and mixing for 30 minutes, then add 5 parts of modified hydrogenated rosin glyceride, 1 part of nano rubber powder and 0.5 part of epoxy soybean oil, continue heat preservation and mixing at 125-135 °C for 30 minutes, and then naturally cool to room temperature to obtain material I;

[0033] (2) Add 15 parts of polyethylene oxide and 3 parts of anionic polyacrylamide to 200 parts of water, heat up to reflux state at a heating rate of 10°C / min and mix for 15 minutes, then add 2 parts of polyvinyl acetate and 1 part of three Triallyl cyanate, continue to reflux insulation and mix for 15min, then naturally cool to room temperature to obtain material II;

[0034] (3) Add 1 part of hydrogenated palm oil and 0.5 part of lanolin alcohol to 15 parts of ceramic ...

Embodiment 3

[0039] The fixing agent prepared in Example 1 and Example 2 was added to the leather dye in an amount of 5%, and the properties of the dyed leather were measured. The results are shown in Table 1.

[0040] The performance measurement result of leather after table 1 dyeing

[0041] project Example 1 Example 2 Exterior Uniform color Uniform color Dye Utilization Rate (%) 97.5 97.3 Soaping fastness (grade) 4 4 Perspiration fastness (grade) 4 4 Dry abrasion resistance (grade) 5 5 Wet wear resistance (grade) 4 4

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Abstract

The invention discloses an efficient-leveling leather dye fixation aid, relating to the technical field of leather working. The efficient-leveling leather dye fixation aid is prepared from the following raw materials in parts by weight: 15-20 parts of ceramic micropowder, 10-15 parts of polyoxyethylene, 5-10 parts of polyvinyl butyral, 5-10 parts of modified hydrogenated rosin glyceryl ester, 3-6 parts of trimethylolpropane triacrylate, 3-6 parts of anionic polyacrylamide, 2-4 parts of hexamethylolmelamine hexamethyl ether, 2-4 parts of polyvinyl acetate, 1-2 parts of hydrogenated palm oil, 1-2 parts of nano rubber powder, 1-2 parts of triallyl cyanurate, 0.5-1 part of lanonol, 0.5-1 part of epoxy soybean oil, 0.5-1 part of bis pentaerythritol and 150-200 parts of water. The fixation aid is firmly combined with the leather fibers under the dual actions of adsorption and flocculation to form the insoluble dye salt precipitate, thereby preventing the dye from shedding from the leather fibers and from hydrolysis due to ionizing, and further enhancing the color fastness of the dye.

Description

[0001] Technical field: [0002] The invention relates to the technical field of leather processing, in particular to a high-efficiency leveling dye-fixing auxiliary agent for leather dyes. [0003] Background technique: [0004] Leather dyeing is an important process in the process of leather processing, in order to endow leather with various colors and maximize its added value. The dyes commonly used in leather mainly rely on van der Waals force and hydrogen bond to combine with leather fibers. Their wet rubbing fastness is poor, and they are prone to fading and staining, which affects the appearance and quality of leather products. In order to improve the dyeing effect of leather dyes, reduce the amount of dyes used, and reduce the chromaticity of dyeing wastewater, people began to add color-fixing agents to the dyes to increase the size of the dye molecules penetrating into the leather, and at the same time, the hydrophilic groups were blocked in the leather fibers. Form i...

Claims

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Application Information

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IPC IPC(8): D06P5/08D06P5/04D06P5/06D06P5/02D06P5/10D06P3/32
CPCD06P5/08D06P3/32D06P5/02D06P5/04D06P5/06D06P5/10
Inventor 曾诗敏
Owner 肇庆高新区飞越信息科技有限公司
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