High-strength pencil lead

A pencil lead, high-strength technology, applied in the field of stationery, can solve the problems of easy breakage, difficult to clean, unsanitary, etc., and achieve the effect of good antibacterial function, bright color, and not easy to break

Inactive Publication Date: 2018-03-09
广安市广安区化龙乡外经贸希望小学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, ordinary pencil refills used for writing, drawing and painting are basically composed of graphite powder, which has disadvantages such as incomplete erasing, unsanitary, and difficult cleaning when it gets on hands, which is not good for the health of users; The raw materials and processes of the existing colored pencil lead are complicated, and the raw materials pollute the environment, and the written handwriting cannot automatically fade, so it is not suitable for occasions that do not require long-term preservation, such as temporary marking, calligraphy and painting exercises, etc.
[0003] In addition, most existing pencils are not strong enough to break easily,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: a kind of high-strength pencil core, its raw material counts 50 parts by weight of sodium thiosulfate, 25 parts of sodium humate, 5 parts of graphene, 12 parts of talcum powder, 3 parts of food-grade paraffin, carboxymethyl 8 parts of sodium cellulose, 2 parts of clove oil.

[0011] The high-strength pencil lead is prepared by the following method: take sodium thiosulfate and heat it to melt, add sodium humate, talcum powder, sodium carboxymethyl cellulose and mix evenly, then add clove oil, graphene and molten Food-grade paraffin, mix well and pour into the mold, let it dry, then take it out.

Embodiment 2

[0012] Embodiment 2: a kind of high-strength pencil lead, its raw material counts 60 parts by weight of sodium thiosulfate, 30 parts of sodium humate, 3 parts of graphene, 16 parts of talcum powder, 4 parts of food-grade paraffin, carboxymethyl 12 parts of sodium cellulose, 3 parts of clove oil.

[0013] The high-strength pencil lead is prepared by the following method: take sodium thiosulfate and heat it to melt, add sodium humate, talcum powder, sodium carboxymethyl cellulose and mix evenly, then add clove oil, graphene and molten Food-grade paraffin, mix well and pour into the mold, let it dry, then take it out.

Embodiment 3

[0014] Embodiment 3: a kind of high-strength pencil lead, its raw material counts 40 parts by weight of sodium thiosulfate, 20 parts of sodium humate, 6 parts of graphene, 8 parts of talcum powder, 2 parts of food-grade paraffin, carboxymethyl 5 parts of sodium cellulose, 1 part of clove oil.

[0015] The high-strength pencil lead is prepared by the following method: take sodium thiosulfate and heat it to melt, add sodium humate, talcum powder, sodium carboxymethyl cellulose and mix evenly, then add clove oil, graphene and molten Food-grade paraffin, mix well and pour into the mold, let it dry, then take it out.

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PUM

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Abstract

The invention relates to the technical field of stationery, in particular to a high-strength pencil core, the raw materials of which are calculated in parts by weight: 40-60 parts of sodium thiosulfate, 20-30 parts of sodium humate, 3-6 parts of graphene, and talcum powder 8-16 parts, 2-4 parts of food grade paraffin, 5-12 parts of sodium carboxymethyl cellulose, 1-3 parts of clove oil. It is green and environmentally friendly and will not cause harm to the human body. It has bright colors, smooth and clear writing, no dross, can be cleaned effectively after being wiped with water, has a fragrant smell, and has good antibacterial functions. And high strength, not easy to break.

Description

technical field [0001] The invention relates to the technical field of stationery, in particular to a high-strength pencil lead. Background technique [0002] In the prior art, ordinary pencil refills used for writing, drawing and painting are basically composed of graphite powder, which has disadvantages such as incomplete erasing, unsanitary, and difficult cleaning when it gets on hands, which is not good for the health of users; The raw materials and processes of the existing colored pencil cores are complicated, and the raw materials pollute the environment, and the written handwriting cannot automatically fade, so it is not suitable for occasions that do not need long-term storage such as temporary marks and calligraphy and painting exercises. [0003] In addition, most of the existing pencils are not strong enough to break easily. Contents of the invention [0004] In order to solve the above problems, the invention provides an easy-to-clean, residue-free, green and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D13/00B43K19/18
CPCC09D13/00B43K19/18
Inventor 袁道川王海
Owner 广安市广安区化龙乡外经贸希望小学校
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