A preparation method of nano-ink for silk printing based on cellulose nanospheres as dispersant

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

Active Publication Date: 2016-10-05
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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  • A preparation method of nano-ink for silk printing based on cellulose nanospheres as dispersant

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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 solution The bubbles in the ink 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 stand at 70°C for 3 h to mature; repeat filtration through a nanofiltration membrane with a pore size of 100 nm three times, ultrasonically disperse and remove the solution The bubbles in the ink 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 ripen; repeat filtration through a nanofiltration membrane with a pore size of 500 nm three times, ultrasonically disperse and remove the solution The bubbles in the ink 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 invention relates to the preparation technology of ink for digital printing of silk textiles, in particular to a preparation method of nano-ink for silk printing based on cellulose nanospheres as a dispersant. Background technique [0002] Digital inkjet printing is to enter the required pattern into the computer through various input means (scanner, digital camera, etc.), and after editing and processing by the computer printing color separation and drafting system (CAD), the micro piezoelectric inkjet printing is controlled by the computer. Mouth, use RIP software to directly spray ink (reactive, reactive, disperse, acidic and other special dye solutions) onto various fabrics for printing through the jet printing system, and obtain textiles with high-precision patterns after processing. In addition, by using C, M, Y, K (cyan, magenta, yellow, black) four-color and ten-color printing nozzles, 16.7 million colors can be printed, which can meet the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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