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Solid writing pen

A writing pen and solid technology, applied in the field of writing pen, can solve the problems of difficult selection of color materials, slow development, etc., and achieve the effects of convenient use, long shelf life and easy storage.

Inactive Publication Date: 2017-12-29
四川省广安中学实验学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-soluble whiteboard markers, although water is used as a solvent, the selection of colorants is still a big problem, so the development is relatively slow

Method used

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  • Solid writing pen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Weigh 23 parts of petroleum wax and heat it to 60-80°C in a container to make it into a molten state;

[0013] (2) Weigh 10 parts of phenolphthalein and add it to the molten petroleum wax in step (1), add 12 parts of propylene glycol, 10 parts of salicylic acid, 8 parts of talcum powder, and 11 parts of iron sulfate and stir for 40 minutes until uniform, and finally add sixteen 13 parts of alkyltrimethylammonium bromide, stirred for 80min to form a homogeneous mixture;

[0014] (3) Cast the mixture in step (3) into a mold, and cool to room temperature to obtain the solid writing pen of the present invention.

Embodiment 2

[0016] (1) Weigh 20 parts of petroleum wax and heat it to 60-80°C in a container to make it into a molten state;

[0017] (2) Weigh 12 parts of phenolphthalein and add it to the molten petroleum wax in step (1), add 10 parts of propylene glycol, 7 parts of salicylic acid, 10 parts of talcum powder, and 7 parts of iron sulfate and stir for 40 minutes until uniform, and finally add sixteen 14 parts of alkyltrimethylammonium bromide, stirred for 80min to form a homogeneous mixture;

[0018] (3) Cast the mixture in step (3) into a mold, and cool to room temperature to obtain the solid writing pen of the present invention.

Embodiment 3

[0020] (1) Weigh 25 parts of petroleum wax and heat it to 60-80°C in a container to make it into a molten state;

[0021] (2) Weigh 7 parts of phenolphthalein and add it to the molten petroleum wax in step (1), add 14 parts of propylene glycol, 12 parts of salicylic acid, 6 parts of talcum powder, and 13 parts of iron sulfate and stir for 40 minutes until uniform, and finally add sixteen 11 parts of alkyltrimethylammonium bromide, stirred for 80min to form a homogeneous mixture;

[0022] (3) Cast the mixture in step (3) into a mold, and cool to room temperature to obtain the solid writing pen of the present invention.

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PUM

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Abstract

The invention discloses a solid writing pen. The solid writing pen is prepared from, by weight, 7-12 parts of phenolphthalein, 10-14 parts of propylene glycol, 11-14 parts of a surfactant, 7-12 parts of salicylic acid, 6-10 parts of talcum powder, 7-13 parts of ferric sulfate and 20-25 parts of petroleum wax.

Description

technical field [0001] The invention relates to the field of writing pens, in particular to a solid writing pen. Background technique [0002] Due to the various chalks currently on the market, such as dust-free chalk, scented dust-free chalk, water-based liquid chalk, nano chalk, shell chalk, etc., the main components of their raw materials are still some substances that are easy to generate dust, such as talc, talcum powder, etc., although certain Dust has been reduced to a certain extent, but it has only been reduced with some binders or dense fillers; Easy to produce the disadvantage of precipitation. Although these pens have improved the classroom environment to a certain extent, they have not fundamentally eliminated dust pollution. [0003] The main components of ordinary crayons, water-soluble crayons, ordinary oil pastels, water-based oil pastels and body paint pens are still water-insoluble materials such as white wax, stone wax, beeswax, white oil, etc., and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16C09D13/00
CPCC09D11/16C09D13/00
Inventor 胡春林
Owner 四川省广安中学实验学校