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Digital printing active red ink and preparation method thereof

A technology of digital printing and reactive red, applied in dyeing, textiles and papermaking, etc., can solve the problems of increasing waste water treatment cost, reducing ink usage rate, poor dyeing effect, etc., achieve long-term storage pH stability, reduce treatment cost, Good printing fluency

Active Publication Date: 2017-01-11
上海贝通色彩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the active red inkjet dyes of digital printing inks commonly used in the market are mainly composed of reactive red 24, reactive red 195, reactive red 218 and reactive red 245, etc. However, regardless of traditional printing technology or digital technology, there are reactive dyes The problem of the combination with fabric fibers, in the printing process, about 20-30% of the dyes are washed away after steaming and washing, thus reducing the graphics effect of "what you see is what you get" in the industry , not only the dyeing rate is low, but also the chromaticity changes greatly, resulting in poor dyeing effect. At present, this technical problem is mainly solved by increasing the ink output. However, this method obviously reduces the ink usage rate, and also Increased cost of wastewater treatment

Method used

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  • Digital printing active red ink and preparation method thereof
  • Digital printing active red ink and preparation method thereof
  • Digital printing active red ink and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A digital printing reactive red ink, composed of the following components by weight percentage: reactive dye 5%, the reactive dye is mixed with reactive red 3:1 and reactive red 218 according to the ratio of 1:99, that is reactive red 3:1 is 0.05%, reactive red 218 is 4.95%; humectant 15%, described humectant is glycerol, ethylene glycol, polyethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1, One or more of 6-hexanediol, dipropylene glycol, and 1,5-pentanediol; 0.5% surfactant, one or more of Surfynol 465, Surfynol GA, and Surfynol CT136 ; Defoamer 0.2%, said defoamer is one or more in Surfynol 104E, Surfynol DF-75 or SurfynolDF-110D; pH buffer 1%, said pH buffer is trishydroxymethylaminomethane -One or more of EDTA, MOPS, sodium tripolyphosphate, sodium polyphosphate, sodium dihydrogen phosphate-disodium hydrogen phosphate; 0.2% bactericide, the bactericide is GXL, BIT-20, BRC- One or more of R; viscosity modifier 1%, said viscosity modifier ...

Embodiment 2

[0042] Different from Example 1, a digital printing reactive red ink is composed of the following components by weight percentage: reactive dye 10%, and the reactive dye is composed of reactive red 3:1 and reactive red 218 according to the ratio of 99:1 The ratio is mixed, that is, reactive red 3:1 is 9.9%, reactive red 218 is 0.1%; moisturizing agent 30%, and the moisturizing agent is glycerol, ethylene glycol, polyethylene glycol, diethylene glycol, propylene glycol , dipolyglycerol, 1,6-hexanediol, dipropylene glycol, 1,5-pentanediol or one or more; surfactant 2%, said surfactant is Surfynol 465, Surfynol GA, Surfynol One or more of CT136; 0.5% of antifoaming agent, one or more of Surfynol 104E, Surfynol DF-75 or Surfynol DF-110D; 5% of pH buffer, said pH The buffer is one or more of Tris-EDTA, MOPS, sodium tripolyphosphate, sodium polyphosphate, sodium dihydrogen phosphate-disodium hydrogen phosphate; 1% bactericide, the bactericide One or more of GXL, BIT-20, BRC-R; visc...

Embodiment 3

[0044]Different from Example 1, a digital printing reactive red ink is composed of the following components by weight percentage: reactive red 3:1 4%; reactive red 218 4%; propylene glycol 15%; Surfynol 465 0.5%; Surfynol DF -750.2%; sodium tripolyphosphate 5%; BRC-R 0.2%; glycerol 5%; urea 5%; deionized water 61.1%.

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Abstract

The invention discloses digital printing active red ink. The digital printing active red ink is prepared from, by weight, 5-10% of reactive dye, 15-30% of humectant, 0.5-2% of surfactant, 0.2-0.5% of defoamer, 1-5% of pH buffer, 0.2-1% of bactericide, 1-5% of viscosity modifier, 5-10% of cosolvent and the balance deionized water. The digital printing active red ink is high in printing smoothness, high in dye uptake, stable in PH after being stored for a long time, good in filterability and high in storage stability, the service life of a sprayer can be prolonged, the color range is wide, the requirements of most users can be met, the dye uptake is high, and the wastewater treatment cost is reduced.

Description

technical field [0001] The invention relates to the field of ink preparation, in particular to a digital printing reactive red ink and a preparation method thereof. Background technique [0002] The so-called digital inkjet printing is to use scanners, digital cameras and other input means to input the pattern into the computer in digital form. After image software processing, the digital inkjet printing machine controlled by the computer directly sprays the printing ink to various Various input patterns are printed on the fiber fabric to obtain various printed fabrics. In recent years, textile digital inkjet printing has been more and more widely used in the textile industry. At the same time, digital printing also has irreplaceable advantages of traditional printing. Digital printing is to print the designed pattern directly through the printer to save costs; digital printing can meet the needs of personalized, small batch and multi-variety orders, greatly simplifying pre...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P5/30
CPCD06P1/38D06P5/30
Inventor 刘晓光李剑锋邢彪
Owner 上海贝通色彩科技有限公司
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