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Preparation method of nano ink based on cellulose nanosphere as dispersant and for silk broadcloth printing

A nano-ink and dispersant technology, applied in dyeing, textile and papermaking, etc., can solve the problems of uneven printing, small particle size, low viscosity, etc., and achieve good conductivity, small particle size and low viscosity. Effect

Active Publication Date: 2015-04-15
HANGZHOU WENSLI SILK DIGITAL PRINTING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a preparation method of nano-ink for silk printing based on cellulose nanospheres as a dispersant. The preparation process of the method is simple and easy to operate, and the cost is low; Produced on an industrial scale; the prepared digital inkjet printing ink has the advantages of small particle size and narrow distribution, uniform and adjustable size, high Zeta potential, low viscosity, good conductivity and high stability, effectively avoiding the need for inkjet printing In the process of printing is not smooth, storage time is short and other problems, has a wide range of application prospects

Method used

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  • Preparation method of nano ink based on cellulose nanosphere as dispersant and for silk broadcloth printing

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Mix 5 g of red reactive dye with 0.7 g of uniformly dispersed cellulose nanosphere suspension, stir well, then add 1 g of sodium dodecylsulfonate, and stir ultrasonically for 30 min. Add 3 g of glycerol and 0.01 g of silver nitrate respectively, and stir thoroughly. The pH value of the solution was adjusted to 7.0 with 2 mol / L disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution. Stir well at 50°C for 1 h, then cool to room temperature, continue to stir for 0.5 h, stand at 50°C for 3 h to mature; repeat filtration through a nanofiltration membrane with a pore size of 500 nm three times, ultrasonically disperse and remove The bubbles in the solution can be used to prepare nano-ink for silk printing.

Embodiment 2

[0035] Mix 10 g of cyan reactive dye with 2 g of uniformly dispersed cellulose nanocrystal sphere suspension, stir well, then add 2 g of sodium dodecylsulfonate, and stir ultrasonically for 50 min. Add 3 g of ethylene glycol and 0.2 g of zinc nitrate respectively, and stir thoroughly. Adjust the pH value of the solution to 7.3 with 0.05mol / L phthalic acid-hydrochloric acid buffer solution. Stir well at 65°C for 1 h, then cool to room temperature, continue to stir for 0.5 h, and let it stand for 3 h to ripen at 70°C; repeat filtration through a nanofiltration membrane with a pore size of 100 nm three times, ultrasonically disperse and remove The bubbles in the solution can be used to prepare nano-ink for silk printing.

Embodiment 3

[0037] Mix 15 g of red reactive dye with 0.5 g of uniformly dispersed cellulose nanosphere suspension, stir well, then add 0.5 g of sodium lauryl sulfate, and stir ultrasonically for 40 min. Add 1 g diethylene glycol and 0.02 g silver nitrate respectively, and stir well. The pH value of the solution was adjusted to 7.8 with 1mol / L disodium hydrogen phosphate-citric acid buffer solution. Stir well at 70°C for 1 h, then cool to room temperature, continue to stir for 0.5 h, and stand at 65°C for 3 h to mature; repeat filtration through a nanofiltration membrane with a pore size of 500 nm three times, ultrasonically disperse and remove The bubbles in the solution can be used to prepare nano-ink for silk printing.

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Abstract

The invention relates to a preparation method of nano ink based on cellulose nanosphere as dispersant and for silk broadcloth printing. The nano ink is characterized by comprising 5-30% of active dyes, 0.5-3% of a surface active agent, 0.3-5% of a dispersant, 1-10% of a moisturizing agent, 0.01-2% of a bactericide, 0.001-2% of a pH buffer and deionized water. The invention uses cellulose nanospheres as the dispersant, so that charged groups on the surface and dye molecules form electrostatic interactions to prepare the highly dispersed nano ink. The preparation process is simple and easy to operate, has no pollution to the environment, and is applicable to industrial production; the prepared ink has the advantages of small controllable size, good storage stability, adjustable viscosity and conductivity, printing fluency, complete chromatogram and bright color.

Description

Technical field [0001] The present invention involves the preparation technology for digital printing silk textiles, and specifically involves a preparation method for nano -ink ink based on fiber nano -based silk printing agent. Background technique [0002] Digital inkjet printing is entered the required pattern into the computer through various input methods (scanners, digital cameras, etc.).In the mouth, use the RIP software to spray the ink (dedicated dyeing solution such as activity, restoration, decentralization, acidic, acidic, etc.) to various fabrics through the jet system. After processing, it obtains textiles printed with high -precision patterns.In addition, C, M, Y, K (green, red, yellow, black) four -color ten -color ten -color ten -color print head can printed 16.7 million colors, and various prints can be achieved. [0003] Compared with traditional printing, this technology has abandoned the process, production, network and carving in traditional printing. It ha...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/50D06P1/62D06P1/613D06P1/673D06P1/653D06P1/651D06P5/30D06P3/10
Inventor 马廷方姚菊明余厚咏阳仁彤杨兴远刘琳张梅飞周劲锋
Owner HANGZHOU WENSLI SILK DIGITAL PRINTING CO LTD
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