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Erasable colorful hydrolysable ink capable of fading and disappearing and preparation method of erasable colorful hydrolysable ink

An ink and color technology, applied in the field of color hydrolyzed ink and its preparation, can solve the problems of the physical health of teachers and students, difficult to completely remove writing and handwriting, interference of secondary writing content, etc., to achieve shortened time, good drying resistance, The effect of increasing productivity

Inactive Publication Date: 2017-02-22
陈庭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional teaching process of primary and secondary schools, blackboard writing is usually written with chalk, but dust will be generated during the process of wiping the blackboard, which will have a certain impact on the health of teachers or students
Therefore, in recent years, the use of whiteboard markers has become more and more popular. The use of whiteboard markers can avoid the influence of dust. Only a specific wiper can completely erase the writing, but this specific wiper undoubtedly increases the cost of use

Method used

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  • Erasable colorful hydrolysable ink capable of fading and disappearing and preparation method of erasable colorful hydrolysable ink
  • Erasable colorful hydrolysable ink capable of fading and disappearing and preparation method of erasable colorful hydrolysable ink
  • Erasable colorful hydrolysable ink capable of fading and disappearing and preparation method of erasable colorful hydrolysable ink

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preparation example Construction

[0029] In a second aspect, the present invention provides a method for preparing the above-mentioned erasable and fadeable color hydrolysis ink, comprising the steps of:

[0030] S11: Dissolving sodium hydroxide in partly distilled water, adding ethanol, and stirring to obtain lye;

[0031] S12: adding at least one of a red colorant and a blue colorant to the lye, and ultrasonically stirring the solution for 1 hour;

[0032] S13: add the remaining distilled water, mix evenly under the vacuum degree of 0.092MPa~0.08MPa, let it stand for degassing, and filter to obtain erasable and fadeable color hydrolysis ink.

[0033] Stirring under vacuum conditions can effectively reduce the bubbles generated during the preparation process, shorten the standing degassing time, increase the yield, and thereby reduce the production cost.

[0034] In addition, since the colored hydrolyzed ink can be made into multiple colors, the ink of the required color can be obtained through the added col...

Embodiment 1

[0047] This embodiment provides an erasable and fadeable color hydrolysis ink, which includes raw materials in the following weight ratio: 0.2 parts by weight of phenolphthalein, 0.9 parts by weight of sodium hydroxide, 10 parts by weight of ethanol, and 50 parts by weight of distilled water.

[0048] According to the above-mentioned raw materials, adopt the preparation method of the erasable, fadeable and disappearing colored hydrolytic ink provided by the present invention to prepare the erasable, fadeable and disappearing colored hydrolytic ink:

[0049] S11: Dissolving sodium hydroxide in partly distilled water, adding ethanol, and stirring to obtain lye;

[0050] S12: adding at least one of a red colorant and a blue colorant to the lye, and ultrasonically stirring the solution for 1 hour;

[0051] S13: add the remaining distilled water, mix evenly under the vacuum degree of 0.092MPa~0.08MPa, let it stand for degassing, and filter to obtain erasable and fadeable color hydr...

Embodiment 2

[0053] This embodiment provides a color hydrolysis ink that can be erased, faded and disappeared, including the following raw materials in weight proportions: 0.4 parts by weight of phenolphthalein, 4 parts by weight of sodium hydroxide, 30 parts by weight of ethanol, 60 parts by weight of distilled water, and 1 part by weight of propylene glycol , 5 parts by weight of glycerin, 0.1 parts by weight of formaldehyde, 0.01 parts by weight of stearic acid, 0.5 parts by weight of sodium alginate, 1 part by weight of starch, 0.2 parts by weight of 1,2-benzisothiazolin-3-one, and 0.5 parts by weight of methanol part, 0.01 part by weight of alkylphenol polyoxyethylene ether and 1 part by weight of essence.

[0054] According to the above-mentioned raw materials, adopt the preparation method of the erasable, fadeable and disappearing colored hydrolytic ink provided by the present invention to prepare the erasable, fadeable and disappearing colored hydrolytic ink:

[0055] S21: Prepare ...

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Abstract

The invention aims to provide erasable colorful hydrolysable ink capable of fading and disappearing and a preparation method of the erasable colorful hydrolysable ink. The erasable colorful hydrolysable ink capable of fading and disappearing comprises a first component and a second component, wherein the first component comprises the following ingredients in parts by weight: 0.2-0.4 part of phenolphthalein and at least one of 0.5-0.9 part of thymolphthalein and 0.2-0.4 part of paraxylene phenolphthalein; and the second component comprises the following ingredients in parts by weight: 0.9-10 parts of sodium hydroxide, 10-60 parts of ethanol, 50-80 parts of distilled water, 1-5 parts of propylene glycol, 1-5 parts of glycerinum, 0.1-0.4 part of formaldehyde, 0.01-0.03 part of stearic acid, 0.2-1 part of sodium alginate, 1-5 parts of starch, 0.2-0.6 part of 1,2-benzoisothiazolinone-3-one, 0.5-8 parts of methanol, 0.01-0.05 part of alkylphenol ethoxylates and a plurality of essence. The erasable colorful hydrolysable ink capable of fading and disappearing is healthful and environment-friendly, can be erased with clear water, and can automatically disappear after being used for writing for a long time; and a preparation process is simple.

Description

technical field [0001] The invention belongs to the technical field of writing materials, and in particular relates to an erasable and fadeable color hydrolysis ink and a preparation method thereof. Background technique [0002] In the traditional teaching process of primary and secondary schools, blackboard writing is usually written with chalk, but dust will be generated during the process of wiping the blackboard, which will have a certain impact on the health of teachers or students. Therefore, in recent years, the use of whiteboard markers has become more and more popular. The use of whiteboard markers can avoid the influence of dust. Only a special wiper can completely erase the writing, but this specific wiper undoubtedly increases the cost of use. Contents of the invention [0003] The invention aims to provide an erasable and fadeable color hydrolysis ink and a preparation method thereof, which is healthy and environmentally friendly, can be wiped with clean wate...

Claims

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Application Information

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IPC IPC(8): C09D11/16C09D11/17
CPCC09D11/16C09D11/17
Inventor 陈庭
Owner 陈庭
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