Water-fading whiteboard pen ink and preparation method thereof

A pen ink and whiteboard technology, applied in the field of whiteboard pen ink and its preparation, can solve the problems of affecting secondary writing, hard to erase, hard to dry, etc., and achieve the effect of low cost, low corrosion, and bright writing

Active Publication Date: 2019-06-28
山西奇色环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this ink has a fatal disadvantage: it is not easy to dry, difficult to erase, and affects secondary writing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] With stirring, 10 ml of ethanol was added to the preparation vessel. Add 0.30 g of red dye and stir until the dye is completely dissolved. Add 0.15g of ferric chloride and stir until the developer is evenly dispersed. Then add 0.20g of PVB, 0.20g of emulsifier OP-10, and 0.30g of β-cyclodextrin in sequence, and stir for 15 hours after the addition is completed to obtain red whiteboard pen ink.

Embodiment 2

[0028] With stirring, 10 ml of ethanol was added to the preparation vessel. Add 0.32g of blue dye and stir until the dye is completely dissolved. Add 0.15g of ferric chloride and stir until the developer is evenly dispersed. Then add 0.20g of PVB, 0.23g of emulsifier OP-10, and 0.3g of β-cyclodextrin in sequence, and stir for 15 hours after the addition is completed to obtain blue whiteboard pen ink.

Embodiment 3

[0030] With stirring, 10 ml of ethanol was added to the preparation vessel. Add 0.29g dark green dye and stir until the dye is completely dissolved. Add 0.16g of ferric chloride and stir until the developer is evenly dispersed. Then add 0.20g of PVB, 0.20g of emulsifier OP-10, and 0.30g of β-cyclodextrin in sequence, and stir for 15 hours after the addition is completed, to obtain dark green whiteboard pen ink.

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PUM

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Abstract

The invention discloses whiteboard marker ink capable of being faded by water and a preparation method of the whiteboard marker ink. The ink is prepared from 75-80 parts of ethyl alcohol, 1-3 parts of a film-forming agent, 2-4 parts of alcohol soluble fluorane dye, 1-2 parts of a color developing agent, 1-3 parts of a surface active agent and 1-3 parts of cyclodextrin. The ink is good in color developing effect, slight in corrosivity, free of toxin, harmless and environmentally friendly, the preparation method is simple, and cost is low. Written handwriting is bright in color and easy to erase and can be faded and erased by a half-dry eraser or soft cloth, and secondary writing is not affected.

Description

technical field [0001] The invention relates to a whiteboard pen ink, in particular to a water-fading whiteboard pen ink and a preparation method thereof. Background technique [0002] Whiteboard pen is a pen product that can be written on a smooth, non-absorbent whiteboard. It uses a fiber tip and the handwriting can be erased. It belongs to a type of erasable marker pen in product classification. It is customarily called a whiteboard. Pen. Compared with traditional blackboard chalk, whiteboard pens are smooth in writing, environmentally safe, easy to carry, and widely used, and can adapt to the trend of rapid development and change of office and teaching supplies. [0003] Patent US 4,256,494 uses ethyl acetate as solvent, organic pigment as colorant, vinyl acetate as film-forming agent, butyl stearate and paraffin as stripping agent, and its preparation process is: add pigment into solvent and stir at high speed for 30 minutes, Then add resin, control the temperature at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/17C09D11/16
CPCC09D11/16C09D11/17
Inventor 马海涛宋胜梅董川双少敏
Owner 山西奇色环保科技股份有限公司
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