Application of disperse dye microcapsules in leather
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A technology of disperse dyes and microcapsules, which is applied in dyeing, textiles and papermaking, etc., can solve the problems of great differences in effects, and achieve the effect of simple method, strong three-dimensional aesthetic feeling and bright colors
Active Publication Date: 2012-07-25
常州汉诺斯生物科技有限公司
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Problems solved by technology
[0004] The coating application of disperse dye microcapsules on leather has not been reported. The invention patent "a microcapsule disperse dye dyeing process for superfine fiber synthetic leather" (application number: 200710048049.4) introduces a disperse dye microcapsule on superfine fiber The dyeing process on synthetic leather, the dyeing process is essentially different from the coating process, and the effect of the final product is also very different
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0016] Embodiment 1: the preparation of disperse dye microcapsule
[0017] Add 20g of 73# red, 54# yellow and 291# blue disperse dye filter cakes to the mixture of 30g emulsifier TX-10 (alkylphenol polyoxyethylene ether) and 300g water respectively, stir evenly, and place on a high-speed shearing machine After shearing for 15 minutes, pour it into a four-neck flask, adjust the pH value to 4-5 with acetic acid, mix 25g polyethylene glycol and 20g water as the wall material, add the wall material dropwise while stirring, and keep warm at 65°C for 2 hours after the drop is completed , 75°C for 1 hour, cooling and discharging, filtering, and drying to obtain disperse dye microcapsules 73# red, 54# yellow and 291# blue.
Embodiment 2
[0019] Color paste preparation: 73# red disperse dye microcapsules: 10%
[0020] Polyacrylic resin: 75%
[0021] Titanium dioxide filler: 5%
[0022] Xylene solvent: 10%
[0023] Scratch coating process: evenly scrape the color paste on the leather, put it in an oven at 105°C to dry, take it out, heat the iron to 105°C, and iron it on the leather for 3 seconds. , the color is bright and bright, the dye has strong fixing power, the rubbing fastness (dry and wet rubbing) can reach level 4 and does not fade after washing, and has the texture of suede.
Embodiment 3
[0025] Color paste preparation: 73# red disperse dye microcapsules: 6%
[0026] 291# blue disperse dye microcapsules: 4%
[0027] Methacrylic resin: 78%
[0028] Paraffin filler: 3%
[0029] N’N-dimethylformamide solvent: 9%
[0030] Scratch coating process: evenly scrape the color paste on the leather, place it in an oven at 105°C to dry, take it out, heat the iron to 110°C, and iron it on the leather for 4 seconds. , the color is bright and bright, the dye has strong fixing power, the rubbing fastness (dry and wet rubbing) can reach 4-5 grades and does not fade after washing, and has the texture of suede.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to application of disperse dye microcapsules in leather, which is characterized in that the disperse dye microcapsules are used for coating finishing on the leather. The application comprises the following steps: 1) preparing color paste by preparing 5-10% of disperse dye microcapsules, 75-88% of resin, 2-5% of a filler and 5-10% of a solvent, adding the disperse dye microcapsules in a mixture of the resin and the solvent, and stirring to disperse the disperse dye microcapsules in the resin uniformly; 2) coating by uniformly coating the prepared color paste on the leather, and drying at a temperature of 100-120 DEG C; and 3) ironing by performing low ironing on the dried leather at a temperature of 80-130 DEG C for 1-5 seconds. The leather processed by the method provided by the invention has surface colors with large contrast before and after the processing; the colors are well proportioned and bright, the fixing force for dyes is strong, and water washing at a high temperature does not cause fading; the leather is wear-resistant, and has texture and three-dimensional appearance very similar to those of suede fabric; and the coating method is simple and easy to operate, and can be quickly put into production.
Description
technical field [0001] The invention relates to the technical field of coating finishing, in particular to a method for coating and finishing leather with disperse dye microcapsules. Background technique [0002] The core material of disperse dye microcapsules is a solid disperse dye filter cake. During processing or use, the microcapsules are stimulated by external pressure, friction, pH value, enzymes, temperature, light and other conditions to rupture, so that the encapsulated substances Release slowly into the surrounding environment as needed for use. [0003] Leather has been deeply loved by people for thousands of years, but the early leather has always been brown and black, and the colors and types are very monotonous. Nowadays, with the improvement of people's living standards, the requirements for leather in terms of color and cortex are getting higher and higher. The leather itself has broken through its limitation of keeping warm from the cold, has the function...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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