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Digital-printing ink-jet ink made of nano pigment and its making process

A technology of digital printing and inkjet ink, which is applied in the fields of ink, dyeing, textiles and papermaking, etc. It can solve the problems of poor color strength and color fastness, inability to store for a long time, easy damage to the nozzle, etc., and achieve sun exposure High fastness, not easy to hydrolyze and flocculate, the effect of human body safety

Active Publication Date: 2009-08-26
上海印能数码科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In existing products, such as the two textile inkjet inks disclosed in U.S. Patent No. 5,603,756 and No. 6,015,454, the problem of adding additives to the ink is not well solved, resulting in poor coloring strength and color fastness. Or can not be stored for a long time and easy to damage the nozzle and other deficiencies

Method used

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  • Digital-printing ink-jet ink made of nano pigment and its making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Include the following components by weight percentage, nano-scale pigment dispersion color paste (black) 18%, ethylene glycol 10%, NMP2%, D-70.5%, triethanolamine 1.5%, NP-101%, 5%, the rest is de ionized water.

[0026] During production, the following steps are included:

[0027] (A) Pre-disperse and grind the pigment (black) to D90<200 nanometers according to the fineness requirements to make nano-scale pigment dispersion color paste (black);

[0028] (B) Mix ethylene glycol, NMP, D-7, triethanolamine, NP-10, polyurethane resin, and deionized water at room temperature, and fully stir for 0.5 hours to obtain a mixed solution;

[0029] (C) adding nanoscale pigment dispersion color paste (black) into the mixed solution prepared in step (B), and fully stirring for 20 minutes to obtain the mixed solution;

[0030] (D) standing the mixed solution obtained in step (C) for 30 hours at a temperature of 60° C. for aging to obtain an aging mixed solution;

[0031] (E) Filtra...

Embodiment 2

[0033] Including the following components by weight percentage, nanoscale pigment dispersion paste (magenta) 7.5%, glycerol 10%, 2-pyrrolidone 5%, isopropanol 5%, D-70.5%, triethanolamine 1%, NP -151.5%, 7% acrylic resin, and the rest is deionized water.

[0034] During production, the following steps are included:

[0035] (A) Pre-disperse and grind the pigment (magenta) to D90<200 nanometers according to the fineness requirements to make nano-scale pigment dispersion paste (magenta);

[0036] (B) Mix glycerol, 2-pyrrolidone, isopropanol, D-7, triethanolamine, NP-15, acrylic resin, and deionized water at room temperature, and stir thoroughly for 1 hour to obtain a mixed solution;

[0037] (C) adding nano-scale pigment dispersion paste (magenta) to the mixed solution prepared in step (B), and fully stirring for 20 minutes to obtain a mixed solution;

[0038] (D) The mixed solution obtained in the step (C) was allowed to stand at a temperature of 50° C. for 30 hours for aging...

Embodiment 3

[0041] Including the following components by weight percentage, nanoscale pigment dispersion paste (blue) 12%, glycerol 15%, isopropanol 5%, 2-pyrrolidone 1%, diethanolamine 2%, D-70.7%, NP -152%, polyurethane resin 9%, the rest is deionized water.

[0042] During production, the following steps are included:

[0043] (A) Pre-disperse and grind the pigment (blue) to D90<200 nanometers according to the fineness requirements to make nano-scale pigment dispersion color paste (blue);

[0044] (B) Mix glycerol, isopropanol, 2-pyrrolidone, diethanolamine, D-7, NP-15, polyurethane resin, and deionized water at room temperature, and stir thoroughly for 0.5 hours to obtain a mixed solution;

[0045] (C) adding nano-scale pigment dispersion paste (blue) to the mixed solution prepared in step (B), and fully stirring for 20 minutes to obtain the mixed solution;

[0046] (D) The mixed solution obtained in the step (C) was allowed to stand at a temperature of 65° C. for 24 hours to mature...

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Abstract

The invention relates to a nanopigment digital printing ink-jet ink, which consists of the following components: nanopigment dispersion color paste; humectant; descaling agent; bactericidal agent; control agent for PH value; surface activator; resin and deionized water. The manufacturing technique includes the following steps: (A) predispersing and grinding the pigment according to the fineness requirement to less than 200 nanometers of D90 to prepare nanopigment dispersion color paste; (B) mixing humectant, descaling agent; bactericidal agent, control agent for PH value, surface activator, resin and deionized water at the normal temperature and sufficiently stirring to obtain the mixed solution; (C) adding the nanopigment dispersion color paste into the mixed solution obtained by step (B) and sufficiently stirring to obtain mixed solution; (D) stewing and curing the mixed solution obtained by step (C) to obtain the aged mixed solution; (E) filtering the aged mixed solution obtained by step (D) by filter membrane to obtain the end product.

Description

technical field [0001] The invention relates to a digital ink-jet ink and a production method thereof, in particular to a nano-pigment digital printing ink-jet ink and a production process thereof. Background technique [0002] Textile digital inkjet printing has been more and more widely used in the textile industry. This method can save the printing plate-making process and shorten the production process; it can realize direct printing of digital patterns, which is novel and convenient; it can reduce the amount of pigments, produce no waste dyes, and shorten the post-processing process at the same time, becoming a low-cost, low-pollution textile Printing production methods. [0003] Digital inkjet printing is mainly suitable for printing cotton with reactive dye ink, printing silk and wool with acid dye ink, and printing chemical fiber fabric with disperse dye ink. However, the existing fabrics are often blended, and a single ink cannot complete jet printing, so it is ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02D06P5/30
Inventor 秦国胜
Owner 上海印能数码科技有限公司
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