White board wax pencil capable of wiping up writing marks by water

A whiteboard and water erasing technology, which is applied to pencil leads, household utensils, applications, etc., can solve the problems of unsmooth development of whiteboard pens, environmental and human health hazards, etc., and achieve the effect of unique formula, easy cleaning, and bright color

Inactive Publication Date: 2012-07-25
浙江奥乐奥新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In modern teaching, although whiteboard pens have replaced chalk writing to a certain extent, the development of whiteboard pens is not very smooth.
Moreover, there are still many problems that need to ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, the preparation of red water wipe faded white board crayon

[0017] Weigh 0.4 grams of red pigment 16 and heat it to melt into a liquid state, add 0.1 grams of bisphenol A, 0.9 grams of salicylic acid and 0.5 grams of stearic acid to continue heating, and stir until it completely develops color, keep the temperature constant, add 4.5 grams of emulsified The wax is completely melted and stirred evenly, 0.4 g of sodium dodecylbenzenesulfonate and 0.2 g of glycerin are added, and finally 3.0 g of talcum powder is added and stirred evenly, then injected into the mold, and the sample is taken out after it cools down.

Embodiment 2

[0018] Embodiment 2, the preparation of black water wipe fade white board crayon

[0019] Weigh 0.4 g of melanin 15 and heat it to melt into a liquid, add 0.1 g of bisphenol A, 0.9 g of salicylic acid and 0.5 g of stearic acid and continue heating, and stir until it completely develops color, keep the temperature constant, add 4.5 g of emulsifying wax Make it melt completely and stir evenly, add 0.4 gram of sodium dodecylbenzenesulfonate and 0.2 gram of glycerin, finally add 3.0 gram of talcum powder and stir evenly, then pour into the mold, take out the sample after it cools down.

Embodiment 3

[0020] Embodiment 3, the preparation of yellow water wipe fade whiteboard crayon

[0021] Weigh 0.4 grams of yellow pigment 37 and heat it to melt into a liquid, add 0.1 grams of bisphenol A, 0.9 grams of salicylic acid and 0.5 grams of stearic acid to continue heating, and stir until it completely develops color, keep the temperature constant, add 4.5 grams of emulsified The wax is completely melted and stirred evenly, 0.4 g of sodium dodecylbenzenesulfonate and 0.2 g of glycerin are added, and finally 3.0 g of talcum powder is added and stirred evenly, then injected into the mold, and the sample is taken out after it cools down.

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PUM

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Abstract

The invention relates to a white board wax pencil capable of wiping up writing marks by water, comprising the following components of emulsifying wax, talcum powder, chromogenic agent, color developing agent, sodium dodecyl benzene sulfonate, stearic acid and glycerol. The white board wax pencil capable of wiping up the writing marks by water has an exclusive formula, and the preparation method is simple and convenient. The white board wax pencil has the writing function of the wax pencil, and the writing marks can be wiped up by dry and wet methods, and can fade quickly after being wiped up by wet cloth. The white board wax pencil is suitable for being used for writing in teaching on a white board, is suitable for children and also suitable for writing a temporary mark or a temporary tattoo in the daily living and production. The color of the wax pencil is voluptuous, and the wax pencil is non-poisonous and innocent, and easily cleaned. The writing marks can be thoroughly wiped up by wet method, and also can automatically fade in two days without any wiping means.

Description

technical field [0001] The invention relates to a writing instrument, in particular to a whiteboard crayon which can be faded by water erasing, which can be applied to whiteboard teaching, temporary marks and temporary tattoos, and is also suitable for children. Background technique [0002] In modern teaching, although whiteboard markers have replaced chalk writing to a certain extent, the development of whiteboard markers has not been very smooth. Moreover, there are many problems to be solved urgently in erasable whiteboard markers, especially the non-degradability of some pigments and the use of a large amount of organic solvents in the ink, which are harmful to the environment and human health. [0003] The manufacturing process and formula of traditional crayons are relatively simple, and the main ingredients are paraffin, talcum powder and pigments. If the crayons are directly used for teaching and writing on the whiteboard, the handwriting is not easy to erase; if t...

Claims

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Application Information

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IPC IPC(8): C09D13/00
Inventor 董川薛科李丽霞
Owner 浙江奥乐奥新材料科技有限公司
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