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Extra-flexible imitation active pigment printing formaldehyde-free adhesive and its preparation method and application

A paint printing, imitation reactive technology, applied in dyeing, textile and papermaking, etc., can solve the problems of stiff hand feeling, easy sticking to rollers, poor color fastness, etc. of printed fabrics, and achieve soft hand feeling, good adhesion and fastness. Good results

Active Publication Date: 2017-11-03
SICHUAN YIXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a formaldehyde-free adhesive for imitating active pigment printing with stable properties, good adhesion, good fastness, small particle size, and soft hand feeling, so as to overcome the problems of existing pigment printing and When the dyeing adhesive contains formaldehyde or does not contain formaldehyde, the color fastness is poor, it cannot meet the needs of use, and the printed fabric feels stiff, and the pigment printing adhesive is easy to stick to the roller when it is used for pigment dyeing.

Method used

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  • Extra-flexible imitation active pigment printing formaldehyde-free adhesive and its preparation method and application
  • Extra-flexible imitation active pigment printing formaldehyde-free adhesive and its preparation method and application
  • Extra-flexible imitation active pigment printing formaldehyde-free adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Add 100g terminal hydrogen-containing polysiloxane, 11.6g hydroxyethyl acrylate (C=C:Si—H molar ratio 1.0:1.0), 111.6g toluene ( 100% of the total weight of the reaction raw materials), 0.58g hydroquinone (0.05% of hydroxyethyl acrylate), through N 2 After three replacements, the temperature was gradually raised to 90° C., and 11.2 g of 1 wt % chloroplatinic acid-ethanol solution (378 ppm) was added as a catalyst. The system heats up rapidly. After the system temperature is stable, gradually raise the temperature to 95°C for 3 hours. After the reaction, cool down to room temperature. Wash with water three times to remove unreacted hydroxyethyl acrylate. , Toluene was removed under reduced pressure at -0.090MPa vacuum. Cool down to room temperature and filter to obtain acyloxy-terminated hydroxyethyl polysiloxane. The infrared spectra of hydrogen-terminated polysiloxane, hydroxyethyl acrylate and acyloxy-terminated hydroxyethyl polysiloxane are as follows: figure 1 sh...

Embodiment 2

[0077] In a 250mL three-necked flask equipped with a thermometer, a stirrer and a condenser tube, add 100g of terminal hydrogen-containing polysiloxane, 26.0g of hydroxypropyl acrylate (C=C:Si—H molar ratio 2.0:1.0), 0.26g of p-phenylene Diphenol (1% of hydroxypropyl acrylate), thru N 2 Replaced three times, gradually raised the temperature to 90° C., and added 33.46 g of 1 wt % chloroplatinic acid-isopropanol solution (1000 ppm). The temperature of the system was raised rapidly, and after the temperature of the system was stabilized, the temperature was gradually raised to 100° C. for 3 hours. Cool down to room temperature after the reaction, wash with water three times to remove excess hydroxypropyl acrylate, add an appropriate amount of toluene to raise the temperature to remove water after water separation. Then the temperature was raised to 100°C, and the toluene was removed under reduced pressure at -0.090MPa vacuum. Cool down to room temperature and filter to obtain a...

Embodiment 3

[0079] In a 250mL three-necked flask with a thermometer, a stirrer and a condenser tube, add 50g of hydrogen-containing polysiloxane, 12.8g of hydroxyethyl acrylate (C=C:Si—H molar ratio 1.1:1.0), 50g of toluene (reaction 79.6% of the total weight of the raw material), 0.2g 2-tert-butyl hydroquinone (1.56% of hydroxyethyl acrylate), through N 2 Replace three times, gradually raise the temperature to 90° C., and add 0.01 g of platinum dioxide (137 ppm) as a catalyst. The temperature of the system was raised rapidly, and after the temperature of the system was stabilized, the temperature was gradually raised to 95° C. for 5 hours. After the reaction was completed, it was lowered to room temperature, washed with water three times to remove excess hydroxyethyl acrylate, and after water separation, the temperature was raised and the toluene was refluxed with water. Then the temperature was raised to 100°C, and the toluene was removed under reduced pressure at -0.090MPa vacuum. Co...

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Abstract

The present invention relates to a kind of ultra-soft imitation active pigment printing formaldehyde-free adhesive and its preparation method, application, the adhesive described in the present invention is based on polysiloxane containing acyloxy hydroxyalkyl, acrylic acid, methacrylic acid , acrylate monomers, acrylamide, styrene, vinyl acetate, acrylonitrile, N-glycidyl acrylamide, unsaturated strong hydrophilic monomers, and reactive surfactants are used as raw materials. It is prepared by copolymerization and condensation reaction. The adhesive of the present invention does not contain formaldehyde, and the color fastness reaches the corresponding national standard. It can be used for both pigment printing and pigment dyeing. The fabric feels very soft after printing or dyeing. Stability, high color fastness and other advantages.

Description

technical field [0001] The invention relates to the field of imitation active pigment printing adhesives, in particular to an ultra-flexible imitation active pigment printing formaldehyde-free adhesive and its preparation method and application. Background technique [0002] Reactive printing is a method of coloring and finishing textiles using reactive dyes through processes such as printing, drying, steaming, washing and drying. The reactive dyes used in reactive printing technology have complete color spectrum and bright color. The color fastness of printed fabrics is good. The fabrics are soft and non-sticky. They are environmentally friendly and do not contain formaldehyde. They are the mainstream printing technology for cellulose fiber fabrics. However, when dyeing with reactive printing technology, salt or sodium sulfate needs to be added as a dyeing accelerator, and sodium carbonate or sodium hydroxide needs to be added when fixing the color. The fixing rate is not h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/52C08F283/12C08F220/58C08G81/02C08G77/38D06P1/38
Inventor 黄玉华樊武厚蒲宗耀蒲实韩丽娟吴晋川梁娟罗艳辉
Owner SICHUAN YIXIN TECH
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