Pigment type blue ink

A kind of ink, blue technology, applied in the field of water-based pigment-based blue ink, can solve the problems of not easy to clean, water resistance, poor light fastness, etc., achieve good water resistance and light fastness, small diffusion, and do not pollute the environment Effect

Active Publication Date: 2007-12-19
SHANGHAI NNW NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems that the blue ink in the prior art has poor water resistance, light fastness, and is not easy to clean, and provides an easy-to-clean water-based pigment-type blue ink suitable for fountain pens and marker pens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prussian blue 2%

[0034] Oxalic acid 3%

[0035] TritonX-100 0.01%

[0036] Propylene glycol 1.5%

[0037] Polyvinyl alcohol 0.25%

[0038] Carbolic acid 0.5%

[0039] Water 92.74%

[0040] The preparation process is as follows: 1. Weigh each material according to the above proportion, and then add appropriate amount of water to the solid raw materials of oxalic acid, polyvinyl alcohol and carbolic acid to dissolve; 2. Add Prussian blue to the oxalic acid solution and stir to dissolve; 3. Alcohol solution, TritonX-100, propylene glycol, and carbolic acid solution are added to the solution prepared in step 2; 4. Add the remaining water, mix uniformly according to the conventional ink manufacturing process, and filter to obtain a pigmented blue ink.

Embodiment 2

[0042] Prussian blue 2%

[0043] Oxalic acid 1%

[0044] Sodium lauryl sulfate 0.01%

[0045] Ethylene glycol 4%

[0046] Carboxymethyl cellulose 0.1%

[0047] Sodium benzoate 1%

[0048] Water 91.89%

[0049] The preparation process is as follows: 1. Weigh the materials according to the above proportions, then add appropriate amount of water to the solid raw materials of oxalic acid, carboxymethyl cellulose, and sodium benzoate to dissolve; 2. Add Prussian blue to the oxalic acid solution and stir to dissolve; 3 , Add the carboxymethyl cellulose solution, sodium lauryl sulfate, ethylene glycol, and sodium benzoate solution to the solution made in step 2; 4. Add the remaining water, mix uniformly according to the conventional ink manufacturing process, and filter, that is A pigment-based blue ink was prepared.

Embodiment 3

[0051] Prussian Blue 2.5%

[0052] Oxalic acid 2%

[0053] 0.01%

[0054] Propylene glycol 2%

[0055] Water-soluble acrylic resin 0.25%

[0056] Sodium benzoate 1%

[0057] Water 92.24%

[0058] The preparation process is as follows: 1. Weigh the materials according to the above ratio, and then add appropriate amount of water to the solid raw materials of oxalic acid, water-soluble acrylic resin and sodium benzoate to dissolve; 2. Add Prussian blue to the oxalic acid solution and stir to dissolve; 3. Add the water-soluble acrylic resin solution, Pingping, propylene glycol, and sodium benzoate solution to the solution prepared in step 2; 4. Add the remaining water, mix uniformly according to the conventional ink manufacturing process, and filter to obtain a pigmented blue ink.

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PUM

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Abstract

The invention relates to a blue ink and concretely to a water pigment blue ink which is easy to wash and can be used in fountain pen and sign pen. The said ink solves the problem in present blue ink which is of poor water resistance and sun resistance and can not be washed easily. The weight ratio of raw materials composition of the prepared ink is: 1.0 % -5 % of Berlin blue colorant, 0.2 % - 5 % of oxalic acid complexing agent, 0.01 % - 2 % of surface activator, 1 % - 10 % of water-loss reducer , 0.1 % - 1 % of binding agent, 0.1 % - 1 % of preservative agent, and the other is water. In relation to the present technology, the significance effect of this invention is: 1. in relation to the present blue ink, it has good water resistance and sun resistance but small diffusibleness; 2. in relation to the present writing ink of all kinds, it is erasable which solves the problem that clothes can not be washed cleanly when contaminated by the present ink; 3. the said ink and its catabolite is nontoxic, flavourless and can not pollute the environment.

Description

Technical field [0001] The invention relates to a blue ink, in particular to an easy-to-clean water-based pigment type blue ink suitable for use in water fountain pens and marker pens. Background technique [0002] At present, there are four main types of writing inks used daily in China: blue and black ink, pure blue ink, black ink and carbon ink. Both pure blue ink and black ink are dye-based inks. Generally, two or more dyes are used in a blend. The disadvantage of this type of ink is poor water resistance, and the writing is easily diffused by solvents such as water and alcohol; poor light resistance , Under the action of light, the associated molecules of the dye chromophore are easy to depolymerize and fade the handwriting, so it is not suitable for writing files and other materials. Ordinary blue-black ink has poor water resistance and light fastness; carbon ink has better water resistance and light fastness, but it is only black, not blue. They also have a common shortcom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/16C09D11/17
Inventor 李建晴温建辉董川
Owner SHANGHAI NNW NEW MATERIALS TECH
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