Novel active printing dye for digital printing and preparation method of novel active printing dye

A technology of reactive printing and digital printing, used in dyeing, organic dyes, textiles and papermaking, etc., can solve problems such as clogging of printing nozzles, improve impermeability, increase consistency, and provide antibacterial properties.

Inactive Publication Date: 2016-01-06
HUZHOU BOREN TEXTILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The dyes for digital printing must meet the following conditions: excellent water solubility, good color saturation, good light and washing fastness, and the requirements for water solubility and stability of dyes in digital printing are very high Yes, but most of the current dyes contain a considerable amount of sodium sulfate. Sodium sulfate has a strong surface potential shielding effect on the dissolved dye particles in the concentrated dye solution, making the dye particles easy to aggregate to form larger particles, which will cause the print head Clogging, etc., so commercially available dyes cannot be directly used as dyes for digital printing

Method used

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  • Novel active printing dye for digital printing and preparation method of novel active printing dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) In parts by volume, mix 1 part of epoxy resin with 5 parts of aniline, heat and stir at 100°C for 5 hours, cool to room temperature, take out and place in a solution of 3 parts of chloroform and 1 part of methanol , vacuum-dried to obtain an epoxy resin precursor.

[0028] (2) In parts by volume, dissolve 1 part of vinylsulfone sulfate in 30 parts of alkaline aqueous solution with a pH value of 8, stir until completely dissolved, then add 8 parts of sodium nitrate, mix well, and then drop Add to 5 parts of acetic acid solution at 0°C and stir evenly to obtain vinyl sulfone sulfate diazonium salt.

[0029] (3) In parts by volume, dissolve the epoxy resin precursor prepared by 0.5 parts of step (1) in a solvent, place in an ice-water bath, slowly add 2 parts of vinyl sulfone sulfate prepared by step (2) dropwise The diazonium salt is reacted with stirring, and the modified vinyl sulfone type reactive dye is obtained after precipitation, filtration, washing and drying...

Embodiment 2

[0032] (1) In parts by volume, mix 1 part of epoxy resin with 10 parts of aniline, heat and stir at 120°C for 6 hours, cool to room temperature, take out and place in a solution of 5 parts of chloroform and 2 parts of methanol , vacuum-dried to obtain an epoxy resin precursor.

[0033] (2) In parts by volume, dissolve 1 part of vinylsulfone sulfate in 50 parts of alkaline aqueous solution with a pH value of 10, stir until completely dissolved, then add 16 parts of sodium nitrate, mix well, and then drop Add to 20 parts of acetic acid solution at 0°C and stir evenly to obtain vinyl sulfone sulfate diazonium salt.

[0034] (3) In parts by volume, dissolve the epoxy resin precursor prepared by 1 part of step (1) in a solvent, place in an ice-water bath, slowly add 4 parts of vinylsulfone sulfate prepared by step (2) dropwise The diazonium salt is reacted with stirring, and the modified vinyl sulfone type reactive dye is obtained after precipitation, filtration, washing and dryin...

Embodiment 3

[0037] (1) In parts by volume, mix 1 part of epoxy resin with 7 parts of aniline, heat and stir at 110°C for 5.5 hours, cool to room temperature, take out the solution placed in 4 parts of chloroform and 1.5 parts of methanol In vacuum drying, the epoxy resin precursor was obtained.

[0038](2) In parts by volume, dissolve 1 part of vinylsulfone sulfate in 40 parts of alkaline aqueous solution with a pH value of 9, stir until completely dissolved, then add 15 parts of sodium nitrate, mix well, and then drop Add to 15 parts of acetic acid solution at 0°C and stir evenly to obtain vinyl sulfone sulfate diazonium salt.

[0039] (3) In parts by volume, dissolve the epoxy resin precursor prepared by 0.7 parts of step (1) in a solvent, place in an ice-water bath, slowly add 3 parts of vinyl sulfone sulfate prepared by step (2) dropwise The diazonium salt is reacted with stirring, and the modified vinyl sulfone type reactive dye is obtained after precipitation, filtration, washing a...

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Abstract

The invention provides novel active printing dye for digital printing and a preparation method of the novel active printing dye. The preparation method particularly comprises the following steps: (1) mixing epoxy resin with aniline, stirring while heating, cooling, taking out the cool product, placing the cooled product in a solution containing chloroform and methanol, and carrying out vacuum drying to obtain an epoxy resin precursor; (2) dissolving vinyl sulfone sulfuric ester into an aqueous alkaline solution for complete dissolution, adding sodium nitrate, mixing uniformly, dripping the uniform mixture into an acetic acid solution, and stirring uniformly to obtain vinyl sulfone sulfuric ester diazo salt; (3) dissolving the epoxy resin precursor into a solvent, placing the solvent with dissolved epoxy resin precursor into an ice water bath, dripping the vinyl sulfone sulfuric ester diazo salt slowly, and stirring for a reaction to obtain modified vinyl sulfone-type reactive dye; (4) dissolving the modified vinyl sulfone-type reactive dye in water to form a pulp, adding urea, secoisolariciresinol diglucoside, and chitosan, then adding sodium carboxymethyl starch and residual water in sequence, and stirring sufficiently to obtain the uniform active printing dye used for digital printing.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a reactive printing dye for digital printing and a preparation method thereof. Background technique: [0002] Since the 1990s, digital printing technology has been widely used in the textile printing process. Chemical additives, printing nozzles, printing machines, fabrics and software programs cooperate with each other to form a complete textile printing solution. This scheme gets rid of the process of color separation and drawing, film making and net making in the production process of traditional printing, thus greatly shortening the production time, and the printing quality and efficiency of the obtained textiles far exceed the traditional printing. As the latest technology in the printing and dyeing industry, digital printing technology has been widely concerned and favored by the industry since its birth. [0003] The vast majority of digital printin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B69/10D06P1/384
Inventor 徐强
Owner HUZHOU BOREN TEXTILES
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