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Active dye waste ink recovery method and application of recovered and regenerated ink

A technology of reactive dyes and recycling methods, which is applied in the field of reactive dye waste ink recycling, can solve the undiscovered digital inkjet printing reactive dye waste ink recycling methods and processes, dyeing shade uncertainty, long process time and other problems, to achieve Reduce the burden of sewage treatment, the method is simple, and the effect of reducing environmental pollution

Active Publication Date: 2014-09-10
ZHEJIANG IND POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process makes use of relevant dyeing residual liquid and increases its reutilization rate by adding dyes and auxiliaries. On the one hand, the residual liquid is often multi-dye color matching, which easily causes the uncertainty of dyeing shade; on the other hand, it is easy to cause Problems such as uneven dyeing and poor fastness; recycling dyestuffs through a special treatment pool for dyeing residues is pollution first and then treatment, which has high cost and long process time
[0006] At present, there is no specific digital inkjet printing reactive dye waste ink recycling method and process

Method used

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  • Active dye waste ink recovery method and application of recovered and regenerated ink
  • Active dye waste ink recovery method and application of recovered and regenerated ink
  • Active dye waste ink recovery method and application of recovered and regenerated ink

Examples

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Embodiment 1

[0027] A kind of reactive dye waste ink recovery method of the present embodiment, comprises the following steps:

[0028] 1) Collect the residual ink of reactive dyes in digital inkjet printing and the waste ink produced by cleaning the nozzles, separate them according to the CMYK color mode series, and collect them in separate colors; collect the waste ink of reactive dyes Brilliant Black XKS1000 (mainly residual ink and Clean the residual ink in the nozzle pipe), take 500g from it.

[0029] 2) The reactive dye Brilliant Black XKS1000 waste ink collected independently in step 1) was concentrated using a rotary distillation device, and then the concentrate was dried in an oven at 85°C for 2 hours.

[0030] 3) Include the following components by mass percentage: 27% reactive dye black after drying, 2% methylnaphthalenesulfonic acid formaldehyde condensate, 6% N-methyl-2-pyrrolidone, 2% ethanol, trihydroxyaminomethane 0.5%, and the rest is deionized water. The above combinati...

Embodiment 2

[0035] 1) Collect the residual ink of reactive dyes in digital inkjet printing and the waste ink generated by cleaning the nozzles, separate them according to the CMYK color mode series, and collect them in separate colors; collect the reactive dye yellow LP-RN (mainly residual ink and cleaning the nozzles Residual ink of the pipe), from which take 500g.

[0036] 2) Concentrate the reactive dye yellow LP-RN waste ink collected independently in step 1) using a rotary distillation device, and then place the concentrate in an oven at 85°C to dry for 2 hours.

[0037] 3) Include the following components by mass percentage: 12% reactive dye yellow after drying, 1% β-naphthalenesulfonic acid formaldehyde condensate, 3% N-methyl-2-pyrrolidone, 1.5% ethanol, trihydroxyaminomethane 0.5%, and the rest is deionized water. The above combinations were mixed and stirred thoroughly for 0.2h. Then the mixed solution was emulsified at 8000rpm for 0.5h, and then ground with a nano horizontal ...

Embodiment 3

[0042] 1) Collect the residual ink of reactive dyes in digital inkjet printing and the waste ink generated by cleaning the nozzles, separate them according to the CMYK color mode series, and collect them in separate colors; collect the reactive dye Jettex Red 4B (mainly residual ink and cleaning Residual ink in the nozzle pipe), take 500g from it.

[0043] 2) Concentrate the reactive dye Jetex Red 4B waste ink collected independently in step 1) using a rotary distillation device, and then place the concentrate in an oven at 92°C to dry for 2 hours.

[0044] 3) Include the following components by mass percentage: reactive dye Jetex Red 4B after drying 20%, β-naphthalenesulfonic acid formaldehyde condensate 2.5%, benzylnaphthalenesulfonic acid formaldehyde condensate 2.5%, ethylene glycol 3% , 4% ethanol, 5% trishydroxyaminomethane, and the rest is deionized water. Mix the above combinations and stir well for 0.5h. Then the mixed solution was emulsified at 8000rpm for 1h, and ...

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Abstract

The invention discloses an active dye waste ink recovery method and an application of recovered and regenerated ink. The method comprises the steps that: (1) digital inkjet printing active dye residual ink and waste ink produced by washing nozzle are separated according to CMYK color model series, and the colors are collected independently and separately; (2) the waste inks independently collected in the step (1) are concentrated and are bake-dried to a constant weight; (3) additives and deionized water are added into the dried dye systems in the step (2), and the mixtures are mixed; and emulsification and grinding are carried out; and (4) the grinded active dye ink solutions obtained in the step (3) are placed in a constant temperature, and are filtered, such that regenerated and recovered active dye inks can be obtained. The regenerated inks can be used as inkjet printing inks, CMYK printing special inks, and dyeing inks, and can be used in paper printing. With the method provided by the invention, active dye ink recycling rate is improved. Compared with original inks, the recovered regenerated active dye inks have similar shades, physical indicators and application performances.

Description

technical field [0001] The invention relates to a method for recycling reactive dye waste ink and the application of recycled ink. Background technique [0002] The annual output of printed textiles in my country is about 5 to 6 billion m2, of which reactive dye printed cloth accounts for about 70%. In ordinary reactive dye printing, the hydrolysis and waste of dyes are one of the main sources of chemical oxygen demand and ammonia nitrogen pollutants. At the same time, there are problems such as immediacy of use. Digital inkjet printing technology for textiles has attracted more and more attention, especially It is a reactive dye digital inkjet printing technology, which represents the advanced technology and future development direction of textile printing. [0003] The application prospect of reactive dye digital inkjet printing technology is good, but there is still a problem of low utilization rate of reactive dye ink in the actual production process of digital inkjet p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/328D06P5/30D06P1/38D06P1/44D06P3/66D21H21/28
Inventor 项伟全琼瑛杨宏林楼永平郦可成
Owner ZHEJIANG IND POLYTECHNIC COLLEGE