Low-volatility pigment type marking ink

A low-volatility, pigment-based technology, applied in inks, household utensils, applications, etc., can solve the problems of high resin and organic solvent content, achieve low volatile organic compound content, good dispersion stability, and fine and smooth writing.

Inactive Publication Date: 2020-05-08
苏州雄鹰笔墨新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN201910810326.3 discloses a high-adhesion marking ink composition, its preparation method and a marker pen, wherein an adhesion promoter is added, but the content of resin and organic solvent in the ink composition is still relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present embodiment provides a kind of low-volatility black marking ink, is made up of the component of weight part:

[0024] Advanced carbon black 5g, ethanol 12.0g, water 76.0g, water-based polyacrylic resin 4.6g (molecular weight 50,000), polyvinyl butyral 1.4g (molecular weight 30,000, degree of acetalization 75%), benzisothiazole Linone 1g. Its preparation method is as follows:

[0025] First add 12.0g of ethanol and 76.0g of water into the dispersing pot, and add 6g of the compound of water-based polyacrylic acid resin and polyvinyl butyral while stirring, and control the stirring speed at 150-200r / min for about 0.5h, so that It is fully dissolved, add 1g of preservative benzisothiazolinone, continue to stir and mix evenly, finally add 5g of pigment high-grade carbon black, and fully stir and mix for 1.5h. Then carry out ultra-fine grinding, adjust the speed at 1000-1300r / min, and grind for 24-48 hours until the particle size of the pigment reaches D 50 =110...

Embodiment 2

[0027] The present embodiment provides a kind of low volatility red marking ink, is made up of the component of weight part:

[0028] Red P.R.48: No. 2 5g, propanol 15.0g, water 74.0g, water-based polyacrylic resin 4.6g (molecular weight 50,000), polyvinyl butyral 1.4g (molecular weight 30,000, degree of acetalization 75%), iso Thiazolone 1g. Its preparation method is as follows:

[0029] First add 15.0g of propanol and 74.0g of water into the dispersing pot, and add 6g of the compound of water-based polyacrylic acid resin and polyvinyl butyral while stirring, and control the stirring speed at 150-200r / min for about 0.5h, so that It is fully dissolved, add 1g of preservative isothiazolinone, continue to stir and mix evenly, finally add 5g of pigment red P.R.48: No. 2, and fully stir and mix for 1.5h. Then carry out ultra-fine grinding, adjust the speed at 1000-1300r / min, and grind for 24-48 hours until the particle size of the pigment reaches D 50 =110~180 nanometers, stop ...

Embodiment 3

[0031] The present embodiment provides a kind of low volatility blue mark ink, is made up of the component of weight part:

[0032] Blue P.B. No. 15 4g, ethanol 13.0g, water 76.0g, water-based polyacrylic resin 3.6g (molecular weight 48,000), polyvinyl butyral 1.1g (molecular weight 60,000, acetalization degree 85%), isothiazoline Ketone 1g. Its preparation method is as follows:

[0033] First add 13.0g of ethanol and 76.0g of water into the dispersing pot, and add 4.7g of the compound of water-based polyacrylic acid resin and polyvinyl butyral while stirring, and control the stirring speed at 150-200r / min for about 0.5h. Make it fully dissolved, add 1g of preservative isothiazolinone, continue to stir and mix evenly, finally add 4g of pigment blue P.B.15, and fully stir and mix for 1.5h. Then carry out ultra-fine grinding, adjust the speed at 1000-1300r / min, and grind for 24-48 hours until the particle size of the pigment reaches D 50 =110~180 nanometers, stop grinding, an...

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Abstract

The invention relates to a low-volatility pigment type marking ink. The marking ink comprises, by weight, 3.5-5.0 parts of a pigment, 5.0-15.0 parts of a cosolvent, 52-78 parts of water, 4.0-6.8 partsof a resin compound and 1.0-2.5 parts of a preservative, wherein the cosolvent is a small molecular alcohol solvent, and the resin compound is a compound of alcohol-soluble resin. The ink is fine andsmooth in writing, stable in storage, free of peculiar smell in the using process and low in volatile organic compound content, is an environment-friendly pigment water-based marking ink and can be matched with various domestic and imported roll-packed cores and fiber pen points.

Description

technical field [0001] The invention relates to a marking ink, in particular to a low-volatile pigment type marking ink. Background technique [0002] A marker pen is a multifunctional writing tool, which is widely used for marking or writing on the surface of paper, wood, metal, plastic and other materials. The ink in existing marker pens mostly uses volatile organic solvents as the medium. Due to the large amount of volatile organic compounds (VOC) emitted during use, on the one hand, it has caused serious impacts on the environment and human health, and on the other hand, there are also potential safety hazards. Therefore, it is very economical and environmentally friendly to use low-volatility solvents, especially water, to replace organic solvents in traditional marker inks. [0003] Guo Hengchang and others recently reported a patent for a water-based marker ink (CN201811251757.2), using pigment carbon black as a pigment, water as a solvent, and adding organosilane to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16
CPCC09D11/16
Inventor 章建东朱健张胜红
Owner 苏州雄鹰笔墨新材料有限公司
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