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Real leather suede leather stereoscopic printing paste and preparation method

A three-dimensional printing, suede technology, applied in the direction of dyeing, textile and papermaking, etc., to achieve the effect of strong three-dimensional sense, strong adhesion and strong adhesion

Active Publication Date: 2012-08-01
LIAONING FIXED STAR FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, through market research and literature search, there is no slurry that can be used for three-dimensional printing on leather suede at a low temperature of 60-90°C, that is, under the shrinkage temperature of leather.

Method used

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  • Real leather suede leather stereoscopic printing paste and preparation method
  • Real leather suede leather stereoscopic printing paste and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Polyethylene glycol (number average molecular weight 2000) 110g;

[0024] Polypropylene glycol (number average molecular weight 2000) 60g;

[0025] Trimethylolpropane 2g;

[0026] 1,4-butanediol 3 g;

[0027] 1. 2-butanediol 3 g;

[0028] 1. 40.6g of 6-hexamethylene diisocyanate (HDI);

[0029] N-methylpyrrolidone 60g;

[0030] Dibutyltin dilaurate 0.05g;

[0031] Add the above-mentioned raw materials to a four-necked flask equipped with a reflux condenser, a thermometer, and a stirrer in turn, and pass through dry nitrogen protection. The reaction temperature is 80°C, and the reaction time is 5 hours to prepare a polyurethane prepolymer. Cool to 30°C, Put it into the emulsification kettle, start stirring, add 2 g of methyl ethyl ketone oxime, 70 g of sodium bisulfite solution with a mass percentage content of 20%, 200 g of ice (-10°C ice made of deionized water), and deionized water at room temperature 224 g, 6 g of glacial acetic acid, stirred for 35 minutes to ...

Embodiment 2

[0033] Polyethylene glycol (number average molecular weight 1000) 160g;

[0034] Polypropylene glycol (number average molecular weight 1000) 60g;

[0035] Trimethylolpropane 3g;

[0036] 1,3-propanediol 2 g;

[0037] 1,4-butanediol 2.6g;

[0038] Neopentyl glycol 3g;

[0039] Toluene diisocyanate (TDI) 82.2g;

[0040] Acetone 60g;

[0041] Dibutyltin dilaurate 0.03g;

[0042] Add the above-mentioned raw materials to a four-necked flask equipped with a reflux condenser, a thermometer, and a stirrer in turn, and pass through dry nitrogen protection. The reaction temperature is 70°C, and the reaction time is 5.5 hours to prepare a polyurethane prepolymer. Cool to 25°C, Put it into the emulsification kettle, start stirring, add 2.5 g of methyl ethyl ketone oxime, 140 g of sodium bisulfite solution with a mass percentage content of 20%, 300 g of ice (-10°C ice made of deionized water), and deionized water at room temperature 326 g, 10 g of glacial acetic acid, stirred for 25...

Embodiment 3

[0044] Polyethylene glycol (number average molecular weight 1500) 150g;

[0045] Polypropylene glycol (number average molecular weight 2000) 100g;

[0046] Trimethylolpropane 3.5g;

[0047] Neopentyl glycol 8.2g;

[0048] 1. 31.1g of 6-hexamethylene diisocyanate (HDI);

[0049] Toluene diisocyanate (TDI) 32.2g;

[0050] Acetone 20g;

[0051] Butanone 20 g;

[0052] Dimethylformamide 20 g;

[0053] Dibutyltin dilaurate 0.03g;

[0054] Add the above-mentioned raw materials to a four-necked flask equipped with a reflux condenser, a thermometer, and a stirrer in turn, pass through dry nitrogen protection, the reaction temperature is 75°C, and the reaction time is 5.5 hours to prepare a polyurethane prepolymer, and cool to 25°C. Put it into the emulsification kettle, start stirring, add 3 g of methyl ethyl ketone oxime, 109 g of sodium bisulfite solution with a mass percentage content of 20%, 300 g of ice (-13°C ice made from deionized water), and deionized water at room tem...

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Abstract

The invention discloses real leather suede leather stereoscopic printing paste and a preparation method. The real leather suede leather stereoscopic printing paste is prepared by preparing polyurethane resin of sodium hydrogensulfite blocked isocyanate by polypropylene glycol, polyethylene glycol, chain extenders, trimethylolpropane, polyisocyanate, solvents, catalysts, methyl ethyl Ketoxime, sodium hydrogensulfite, ice and water, and blending the polyurethane resin with a polyurethane filming fixing agent FS-0517. According to the real leather suede leather stereoscopic printing paste and the preparation method, stereoscopic printing for real leather suede leathers can be achieved by utilizing the flat screen printing technology and drying real leather suede leathers at a temperature between 60 DEG C and 90 DEG C, a concave and convex feel is apparent, the style is elegant and fashionable, stereoscopic print patterns are specific, and the print patterns are stable, and water washing and dry friction resistant.

Description

technical field [0001] The invention relates to a printing paste for leather suede, which is a paste for realizing three-dimensional printing of leather suede and a preparation method thereof. [0002] The invention is a slurry for three-dimensional printing of genuine leather suede, which is a polyurethane resin composite slurry that undergoes a crosslinking reaction at 60-90°C. It does not block the network, has excellent permeability, and strong adhesion. With the flat screen printing process, three-dimensional printing of leather and suede can be carried out. Background technique [0003] The traditional three-dimensional printing is suede three-dimensional printing, which is processed by hot embossing and embossing. The suede that can be used for hot embossing and embossing is all chemical fiber fabrics. Hot embossing and embossing use high-temperature pressing technology, which is not suitable for three-dimensional printing processing of leather suede, because leather...

Claims

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Application Information

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IPC IPC(8): D06P1/52D06P1/44D06P3/30C08G18/83C08G18/66C08G18/48
Inventor 杨文堂樊丽君鞠镭唐丽荣星李刚刘杰董明东宋明智
Owner LIAONING FIXED STAR FINE CHEM
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