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Color paste used for preparing whiteboard marker ink and preparation method thereof

A pen ink and color paste technology, applied in the preparation of color paste for whiteboard pen ink and the field of preparation thereof, can solve the problems affecting the writing fluency, color, erasability, coarse pigment particles, low tinting strength of ink, etc. The effect of good rubbing performance, uniform dispersion and pure color

Inactive Publication Date: 2016-09-07
湖北世安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main direction of development is alcohol-soluble type, but most of the pigments used for coloring are oily, and it is difficult to achieve good dispersion in the film-forming resin and alcohol system with strong polarity
In addition, the existing whiteboard pen ink production process is generally to directly stir and mix or grind the components, and the pigment is directly added to the ink system, resulting in thicker pigment particles in the ink and low tinting power. At the same time, the resin cannot The pigment particles are completely wrapped, which affects the writing fluency, color, erasability, etc. of the ink, and even pollutes the board surface when erasing

Method used

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  • Color paste used for preparing whiteboard marker ink and preparation method thereof
  • Color paste used for preparing whiteboard marker ink and preparation method thereof
  • Color paste used for preparing whiteboard marker ink and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] This embodiment provides a kind of color paste for preparing whiteboard pen ink. The components include: 60g of solvent, wherein 40g of ethanol, 10g of n-propanol, and 10g of n-butanol; 3g of film-forming agent, which is carboxylate Methyl cellulose; 6 g of colorant, which is carbon black; 1 g of dispersant, which is hyperdispersant Solsperse-24000.

[0029] The above-mentioned preparation method for preparing the color paste of whiteboard pen ink, the steps include: under normal temperature and pressure, add 40g ethanol, 10g n-propanol, 10g n-butanol, 3g carboxymethyl cellulose to the dispersion tank successively, stir at a low speed 20 minutes to completely dissolve carboxymethyl cellulose; then add 6g of carbon black, 1g of hyperdispersant Solsperse-24000, and pre-disperse at low speed for 10 minutes; finally send it to the sand mill and circulate it under the conditions of system pressure 0.02Mpa and material temperature 10℃ Grinding for 5 times, the color paste can...

Embodiment 2

[0032] This embodiment provides a color paste for preparing whiteboard pen ink. The components include: 60g of solvent, including 35g of ethanol and 25g of isopropanol; 5g of film-forming agent, and the film-forming agent is carboxymethyl cellulose; 10g of colorant, the colorant is phthalocyanine blue P.B.15:3; 1g of dispersant, the dispersant is SN-5027.

[0033] The above-mentioned preparation method for preparing the color paste of the whiteboard pen ink, the steps include: under normal temperature and pressure, add 35g ethanol, 25g isopropanol, 5g carboxymethyl cellulose successively to the dispersion bucket, stir at a low speed for 25min to make the carboxymethyl Completely dissolve the cellulose; then add 10g phthalocyanine blue P.B.15:3, 1g dispersant SN-5027, pre-disperse at low speed for 10min; finally send it to the sand mill and grind it circularly under the conditions of system pressure 0.01Mpa and material temperature 20℃ 3 times, the color paste is obtained after...

Embodiment 3

[0036]This embodiment provides a color paste for preparing whiteboard pen ink. The components include: 70g of solvent, including 35g of ethanol, 25g of n-propanol, and 10g of 1,2-propanediol; 6g of film-forming agent, the film-forming agent It is carboxymethyl cellulose; colorant 10g, said colorant is P.R.112; dispersant 2g, said dispersant is hyperdispersant Solsperse-20000.

[0037] The preparation method for the above-mentioned color paste for preparing whiteboard pen ink, the steps include: under normal temperature and pressure, add 35g ethanol, 25g n-propanol, 10g1,2-propanediol, 6g carboxymethyl cellulose successively to the dispersion bucket, and slowly Stir for 20 minutes to completely dissolve carboxymethyl cellulose; then add 10g P.R.112, 2g hyperdispersant Solsperse-20000, and pre-disperse at low speed for 10 minutes; finally send it to a sand mill under the conditions of system pressure 0.13Mpa and material temperature 25°C Circulate grinding 4 times, and get the c...

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Abstract

The invention provides color paste used for preparing whiteboard marker ink. The color paste comprises the following components in percentage by weight: 1-15% of a film-forming agent, 1-30% of a coloring agent, 60-90% of a solvent, and 0.1-5% of a dispersing agent, wherein the film-forming agent comprises one of polyvinyl alcohol, polyvinyl acetal, ethyecellulose, carboxymethyl cellulose and hydroxyethyl cellulose; and the dispersing agent comprises one of an acrylic block type dispersing agent, a polyester type dispersing agent, and an amino-acid ester copolymer type dispersing agent. Furthermore, the invention provides a preparation method of the color paste. By virtue of interaction of the coloring agent, the film-forming agent and the dispersing agent in the color paste, coloring agent particles can be coated in the film-forming agent very well after pre-dispersing and grinding processes under special conditions; the color paste system has better stability, the coloring agent can be dispersed more uniformly and has relatively small grain size; the preparation method can be used for preparing the whiteboard marker ink with good comprehensive properties.

Description

technical field [0001] The invention belongs to the technical field of ink preparation, in particular to a color paste for preparing whiteboard pen ink and a preparation method thereof. Background technique [0002] Color paste is a kind of concentrated pigment paste, which is developed through strict processing technology through surface treatment and surface wrapping of pigments. Generally speaking, color paste is composed of pigment, dispersant, wetting agent and dispersion medium-solvent, and can be widely used in coatings, leather, printing, papermaking, ink, textile and other industries. Color paste is mainly used for coloring. Compared with traditional coloring methods, color paste has the advantages of finer pigment particles, uniform particle dispersion, and higher tinting strength. [0003] Whiteboard pen ink is a new type of ink that can be written on a smooth non-absorbent hard board and is easy to erase. It has the advantages of convenient, smooth, clean, and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00C09D11/17
CPCC09D17/005C09D11/17C09D17/003
Inventor 万品刚文俊
Owner 湖北世安科技有限公司
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