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Flexible bionic active pigment printing formaldehyde-free bonding agent and preparation method and application thereof

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

Active Publication Date: 2015-11-18
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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  • Flexible bionic active pigment printing formaldehyde-free bonding agent and preparation method and application thereof
  • Flexible bionic active pigment printing formaldehyde-free bonding agent and preparation method and application thereof
  • Flexible bionic active pigment printing formaldehyde-free bonding agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] In a 500mL three-necked flask with a thermometer, stirrer and condenser, 100g of hydrogen-containing polysiloxane, 11.6g of hydroxyethyl acrylate (C=C:Si-H molar ratio 1.0:1.0), 111.6g of toluene ( 100% of the total weight of reaction raw materials), 0.58g hydroquinone (0.05% of hydroxyethyl acrylate), through N 2 Replace it three times, gradually increase the temperature to 90°C, and add 11.2 g of 1 wt% chloroplatinic acid-ethanol solution (378 ppm) as a catalyst. The system heats up rapidly. After the system temperature stabilizes, the temperature is gradually increased to 95°C for 3 hours. After the reaction, the temperature is lowered to room temperature. The unreacted hydroxyethyl acrylate is removed by washing with water three times. , Removal of toluene under reduced pressure under -0.090MPa vacuum. It was cooled to room temperature and filtered to obtain acyloxy-terminated hydroxyethyl polysiloxane. The infrared spectra of hydrogen-terminated polysiloxane, hydro...

Embodiment 2

[0077] Into a 250mL three-necked flask with a thermometer, agitator and condenser, 100g of hydrogen-containing polysiloxane, 26.0g of hydroxypropyl acrylate (C=C:Si-H molar ratio 2.0:1.0), 0.26g of p-benzene Diphenol (1% of hydroxypropyl acrylate), pass N 2 Replace three times, gradually increase the temperature to 90°C, and add 33.46 g of 1 wt% chloroplatinic acid-isopropanol solution (1000 ppm). The system heats up rapidly, and after the system temperature is stable, the temperature is gradually raised to 100°C for 3 hours. After the reaction is over, the temperature is lowered to room temperature, and the excess hydroxypropyl acrylate is removed by washing with water three times. After the water is separated, an appropriate amount of toluene is added to increase the temperature to remove water. Then the temperature was raised to 100°C, and the toluene was removed under reduced pressure under a vacuum of -0.090MPa. It was cooled to room temperature and filtered to obtain acy...

Embodiment 3

[0079] Into a 250mL three-necked flask with a thermometer, agitator and condenser, 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 raw materials), 0.2g 2-tert-butyl hydroquinone (1.56% of hydroxyethyl acrylate), through N 2 Replace it three times, gradually increase the temperature to 90°C, and add 0.01g platinum dioxide (137ppm) as a catalyst. The system heats up rapidly, and after the system temperature is stable, the temperature is gradually raised to 95°C for 5 hours. After the reaction, the temperature was lowered to room temperature, and the excess hydroxyethyl acrylate was removed by washing with water three times. Then the temperature was raised to 100°C, and the toluene was removed under reduced pressure under a vacuum of -0.090MPa. It was cooled to room temperature and filtered to obtain pendant acyloxy hydroxyethyl polysiloxane. The infrared spectrum of pen...

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Abstract

The invention relates to a flexible bionic active pigment printing formaldehyde-free bonding agent and preparation method and application thereof. The bonding agent comprises acyloxy hydroxyalkyl polysiloxane, acrylic acid, methacrylic acid, acrylic monomers, acrylamide, styrene, vinyl acetate, acrylonitrile, N-glycidyl acrylamide, unsaturated strongly hydrophilic monomers and reactive surfactant which are subjected to copolymerization and condensation reactions in cooperation with initiator, and the flexible bionic active pigment printing formaldehyde-free bonding agent is prepared. The bonding agent is free of formaldehyde, the color fastness meets the corresponding national standards, the agent can be used for pigment printing as well as pigment dyeing, the printed or dyed fabric is very soft in hand feeding, and the bonding agent has the advantages of being free of being sticky to rolls and blocking screens, stable in property, high in color fastness and the like.

Description

Technical field [0001] The invention relates to the field of imitation active pigment printing adhesives, in particular to a special soft formaldehyde-like imitation active pigment printing adhesive, and a preparation method and application thereof. Background technique [0002] Reactive printing is a method of coloring and finishing textiles through printing, drying, steaming, washing and drying processes using reactive dyes. The reactive dyes used in the reactive printing technology have complete chromatograms and bright colors. The printed fabrics have good color fastness. The fabrics feel soft and do not stick to the hands. They are environmentally friendly and do not contain formaldehyde. It is the mainstream printing technology for cellulose fiber fabrics. However, when dyeing with reactive printing technology, table salt or sodium sulfate should be added as a dye promoter, and sodium carbonate or sodium hydroxide should be added during fixing. The fixation rate is not high...

Claims

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Application Information

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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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