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Pigment type neutral ink and production method thereof

A neutral ink and pigment technology, applied in the chemical industry, can solve the problems of inability to write on the refill, increase the particle size of the pigment, and poor fluency, etc., and achieve the effects of reducing dosage, eliminating air bubbles, and ensuring continuity

Active Publication Date: 2013-10-02
贵州博士化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are dispersion and stability problems of the pigment particles in the water-based system. During the long-term storage of the ink, the pigment tends to thicken and flocculate, resulting in the continuous increase of the particle size of the pigment, and even separation from the matrix and delamination, resulting in neutral In the process of writing, the ink often clogs the tip of the pen, breaks the writing line, has poor fluency, and even fails to write when the refill is not used up.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of pigment type neutral ink, comprises the steps:

[0036] (1) Preparation of solvent system:

[0037] a. Dissolve 0.3kg of corrosion inhibitor benzotriazole in 10kg of humectant ethylene glycol, stir to dissolve completely and then filter to obtain humectant;

[0038] b. Mix 0.3kg lubricant ethylene oxide, 5kg humectant ethylene glycol, and 10kg humectant propylene glycol to make a water-soluble low-carbon alcohol solution;

[0039] c. Take 0.35kg of anionic surfactant sodium naphthalenesulfonate and dissolve it with 4kg of deionized water, add 0.4kg of nonionic surfactant alkylphenol polyoxyethylene ether, 0.32kg of nonionic surfactant polyether modified polydimethyl Compounded with base siloxane to make mixed surfactant;

[0040] d. Take 0.1kg polyether modified silicone defoamer and add 1kg deionized water;

[0041] e. Take 2kg of polyether polyurethane rheology additive and dilute it with 10kg of deionized water, add 2kg of pH regulator triethanolamine, s...

Embodiment 2

[0054] A kind of pigment type neutral ink, comprises the steps:

[0055] (1) Preparation of solvent system:

[0056]a. Dissolve 0.1 kg of corrosion inhibitor tolyltriazole in 5 kg of humectant polyethylene glycol (molecular weight controlled at 200-6000), stir to dissolve completely and filter to obtain humectant;

[0057] b. Mix 0.8 kg of lubricant alkyl ether phosphate, 5 kg of humectant polyethylene glycol (molecular weight controlled at 200-6000), and 5 kg of humectant ethylene glycol butyl ether to make a water-soluble alcohol solution;

[0058] c. Take 0.1kg of anionic surfactant acrylate dispersant and dissolve it with 1kg of deionized water, add 0.1kg of nonionic surfactant polyoxyethylene polyoxypropylene block polyether, 0.1kg of nonionic surfactant sorbitol fatty acid Esters compounded into mixed surfactants;

[0059] d. Take 0.5kg polyether defoamer and add 5kg deionized water;

[0060] e. Take 0.5kg of hydrophobic modified alkali-swellable polyacrylic acid rheo...

Embodiment 3

[0073] A kind of pigment type neutral ink, comprises the steps:

[0074] (1) Preparation of solvent system:

[0075] a. Take 1.5 kg of corrosion inhibitor sodium tripolyphosphate, dissolve it in 20 kg of deionized water, stir to dissolve completely and filter to obtain a corrosion inhibitor solution;

[0076] B, get 2.5kg lubricant polysiloxane, 5kg humectant oleic acid, 30kg humectant diethylene glycol, 30kg humectant triethylene glycol, 10kg humectant diethylene glycol butyl ether mix, prepare into humectant solution;

[0077] c. Take 1.5kg of anionic surfactant sodium naphthalenesulfonate and dissolve it with 40kg of deionized water, then add 2.5kg of nonionic surfactant alkylphenol polyoxyethylene ether, 2kg of nonionic surfactant polyether modified polydimethyl Siloxane is compounded into a mixed surfactant;

[0078] d. Take 1kg polysiloxane defoamer and add 10kg deionized water;

[0079] e. Take 5kg of pH regulator sodium hydroxide and add 15kg of deionized water to ...

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PUM

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Abstract

The invention discloses a pigment type neutral ink and a production method thereof. The pigment type neutral ink comprises the following raw materials by weight percentage: 15-40% of color paste, 15-40% of wetting agent, 1-3% of pH regulator, 0.1-2.0% of antibacterial bacteriostatic agent, 0.5-5.0% of surfactant, 0.5-3.0% of rheology assistant, 0.1-1.0% of defoamer, 2-10% of resin, 0.1-1.5% of corrosion inhibitor, 0.3-2.5% of lubricant and the balance of de-ionized water, wherein the color paste is a water-based color paste, and the formula of the water-based color paste includes 18-35% of pigment, 1-12% of surfactant, 0.2-3.0% of pH regulator, 0.1-2.0% of antibacterial bacteriostatic agent, 0.05-1.0% of defoamer, 3-15% of wetting agent and the balance of de-ionized water. The pigment type neutral ink has excellent moisture preservation and lubrication properties, and thereby guarantees continuity and fluency of writing; and the pigment type neutral ink is stable in performance and long in quality guarantee period.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a pigment-type neutral ink, and also relates to a preparation method of the pigment-type neutral ink. [0002] Background technique [0003] Gel pen is a new type of ballpoint pen products, because of its smooth writing, clear handwriting, excellent water and light resistance, good color, long shelf life without fading, and both the lubricity of oily ballpoint pens and the fluency of water-based ballpoint pens, etc. Advantages, deeply loved by consumers, the market share has increased year by year. The matching neutral ink refers to the medium-viscosity gel-like pigment ink with a viscosity between oily ballpoint pen ink and water-based ballpoint pen ink. It is a new type of fine chemical product with high technological content. However, there are dispersion and stability problems of the pigment particles in the water-based system. During the long-term storage of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/18
Inventor 戴勇时磊
Owner 贵州博士化工有限公司
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