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Carbon black gel ink

A technology of neutral ink and carbon black, which is applied in the direction of ink, household utensils, applications, etc., can solve the problems of not fully considering the carbon black pulping process, the quality reduction of the color paste, and the coarsening of particles, so as to improve the stability and writing quality Performance, writing performance improvement, good dynamic balance effect

Inactive Publication Date: 2013-08-07
李莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent does not fully consider the pulping process of carbon black, which is prone to adverse phenomena such as sharp increase in viscosity and coarse particles, resulting in lower quality of color paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A carbon black neutral ink, comprising the following components by weight percentage: 0.2% xanthan gum, 1% alkali-swellable acrylic acid, 20% carbon black paste, 10% surfactant, 20% moisturizing lubricant, anti-corrosion and anti-mildew Agent 0.1%, PH value adjuster triethylamine 0.8%, deionized water 40%.

[0028] Mix the above raw materials, stir evenly, and defoam to obtain neutral ink.

Embodiment 2

[0030] A carbon black neutral ink, comprising the following components by weight percentage: 0.5% xanthan gum, 2% alkali-swellable acrylic acid, 50% carbon black paste, 15% surfactant, 5% moisturizing lubricant, anti-corrosion and anti-mildew Agent 0.05%, PH value adjuster triethylamine 0.2%, deionized water 30%.

[0031] The carbon black paste is Hurst red.

Embodiment 3

[0033] A carbon black neutral ink, comprising the following components by weight percentage: 0.25% xanthan gum, 1.5% alkali-swellable acrylic acid, 40% carbon black paste, 12% surfactant, 10% moisturizing lubricant, anti-corrosion and anti-mildew Agent 0.06%, pH regulator triethylamine 0.5%, deionized water 35%.

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PUM

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Abstract

The invention provides a carbon black gel ink comprising the components of, by weight, 0.2-0.5% of xanthan gum, 1-2% of alkali-swellable acrylic acid, 20-50% of carbon black color paste, 10-15% of a surfactant, 5-20% of a moisturizing lubricant, 0.05-0.1% of a preservative and fungicide agent, 0.2-0.8% of a PH value regulator triethylamine, and 30-40% of deionized water. The invention is provided according to particle size and distribution of the pigment carbon black in the color paste, and according to the aspect of dispersion stability. An appropriate dispersing agent is selected, and water-based color paste preparation process is optimized, such that the carbon black pigment water-based color paste suitable for gel ink is developed, and guidance is provided for breaking the technical bottleneck in gel ink pen production of our nation.

Description

technical field [0001] The invention relates to a neutral ink, in particular to a carbon black neutral ink. Background technique [0002] Pigment carbon black gel pen has been widely used as a special signature pen for documents and materials because of its advantages of smooth and smooth writing and firm ink convergence. Although my country is already a big country in the production and sales of gel pens, gel ink is still one of the key technologies that hinder my country from becoming a strong country in the production of gel pens. At present, there are still some defects in the domestic trial special ink for gel pens, and the high-end product market is occupied by foreign companies. [0003] In the development process of neutral inks, in addition to obtaining excellent ink rheological properties, the uniform and stable dispersion of colorants in aqueous media is another important factor that determines the performance of inks. However, ordinary carbon black has no self-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16C09D11/18
Inventor 李莉
Owner 李莉
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