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Dye-based ink and ink cartridge

A dye ink and dye technology, applied in the direction of ink, printing, household appliances, etc., can solve the problems of destroying dye chromophores, dye fading, easy plugging, etc., and achieves good film-forming gloss, film-forming strength, and good The effect of blocking the air

Inactive Publication Date: 2019-02-22
ZHUHAI FREE TRADE ZONE NEOJET APOLLOJET IMAGING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the water-based ink system, it mainly includes two types: pigment ink and dye ink. Among them, pigment ink has good light fastness and waterproof performance, but pigment ink also has its shortcomings. The color gamut of pigment ink is not as wide as that of dye ink, and it is not as gorgeous as dye ink. ; The storage stability of pigment ink is relatively poor, and it is easy to plug
Dye ink usually contains dye, water, nozzle moisturizer, etc. Dye ink is easy to preserve, has good color, and is relatively cheap. However, due to the fading effect of ultraviolet rays on dyes, the substrate printed with dye ink will fade after being placed for a long time At the same time, the ozone in the air will destroy the conjugated system or chromophoric group of the dye by means of redox, which will also make the dye fade

Method used

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  • Dye-based ink and ink cartridge
  • Dye-based ink and ink cartridge
  • Dye-based ink and ink cartridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0028] The formulations of Examples 1-6 are shown in Table 1.

[0029] Table 1

[0030]

[0031]

[0032] Among them, Surfynol 465 is Surfynol 465 Surfactant produced by American Air Chemical Company. GXL is the PROXELTM GXL industrial preservative produced by American Orin Company. The acrylic resin is Joncry HPD 96 produced by BASF D. BASF, Germany. The polyurethane resin is Takelac W-6355 produced by Mitsui Chemicals, Japan. The number average molecular weight of polyvinylpyrrolidone is 8,000, the number average molecular weight of methylcellulose is 50,000, and the number average molecular weight of polyvinyl alcohol is 25,000. The contents in Table 1 are all mass percentages (the same below).

Embodiment 1

[0033] The preparation method of the dye ink of Example 1: S1: Add 20% of 1,3 propylene glycol and 68.4% of deionized water to the container and mix, then add 0.5% of surfactant Surfynol 465, and then add 0.1% of GXL For industrial preservatives, place the container on a magnetic stirrer and stir at a speed of 160 revolutions per minute to 250 revolutions per minute. Wait until the solution is stirred until it becomes clear. S2: Add 5.0% acrylic resin and 1.0% polyvinylpyrrolidone to the container, and continue to stir the solution until it is clear. S3: Add 5% Direct Black 168 to the container, and after stirring for 1 hour, filter with a vinylidene fluoride membrane with a pore size of 1.2 μm to prepare a black dye ink 1.

[0034] Fill the prepared dye ink 1 into the printer EPSON STULUS PHOTO T50 ink cartridge and set it aside.

[0035] With reference to the preparation method of Example 1, the dye inks 2, 3, 4, 5, and 6 of Examples 2-6 were prepared and filled into the EPSON S...

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Abstract

The invention provides dye-based ink and an ink cartridge. The dye-based ink is prepared from a nozzle humectant, waterborne dye, water, 5%-20% by weight of film-forming resin and 1%-3% by weight of afilm-forming accelerator. By adding the film-forming resin to the dye-based ink, a protective film can be formed by the film-forming resin on the surface of the waterborne dye after printing, air iswell isolated, ozone in the air is prevented from making contact with the waterborne dye, the protective film can further block part of ultraviolet rays, and accordingly, a finished product printed from the dye-based ink is not prone to fading after long-time placement. By means of the film-forming accelerator added to the dye-based ink, the film-forming effect of the film-forming resin can be further improved, and oxidation resistance and illumination resistance of the dye-based ink can be further improved.

Description

Technical field [0001] The invention relates to the technical field of printing consumables, in particular to dye inks and ink cartridges. Background technique [0002] Inkjet technology is a non-contact printing technology, through computer control, the printed image is printed on the substrate by an inkjet printer. At present, the inks used in inkjet printers are divided into water-based systems, solvent-based systems, and UV-curable systems. As a more environmentally friendly product, the water-based system is gradually expanding its application range. In the water-based ink system, there are mainly two types: pigment ink and dye ink. The pigment ink has good light fastness and waterproof performance, but the pigment ink also has its shortcomings. The color gamut of pigment ink is not as wide as that of dye ink and is not as bright as dye ink. ; Pigment ink storage stability is relatively poor, easy to block. Dye inks usually contain dyes, water, nozzle moisturizers, etc. Dy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30C09D11/328C09D11/38B41J2/175
CPCB41J2/17503C09D11/30C09D11/328C09D11/38
Inventor 周子昂蔡金求李阳辉
Owner ZHUHAI FREE TRADE ZONE NEOJET APOLLOJET IMAGING MATERIALS
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