CN103073956A - Fadable coloured chalk for white board - Google Patents
Fadable coloured chalk for white board Download PDFInfo
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- CN103073956A CN103073956A CN2013100131018A CN201310013101A CN103073956A CN 103073956 A CN103073956 A CN 103073956A CN 2013100131018 A CN2013100131018 A CN 2013100131018A CN 201310013101 A CN201310013101 A CN 201310013101A CN 103073956 A CN103073956 A CN 103073956A
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- blank
- pastel
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- talcum powder
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Abstract
The invention provides a fadable coloured chalk for a white board and a preparation method thereof. The coloured chalk comprises the following raw materials in part by mass: 40-45 parts of emulsifying wax, 20-25 parts of stearic acid, 14-18 parts of talcum powder, 6-10 parts of polyethylene glycol, 1-2 parts of sodium polyacrylate, 2-4 parts of colour former, 5-6 parts of glycerol and 0.6-0.8 part of white carbon black, wherein the colour former is one or more of methyl blue, acid fuchsin and No. 3 acid green. According to the invention, the preparation method for the coloured chalk is simple, the prepared coloured chalk can write on the white board smoothly, the writing is legible and the coloured chalk can fade by erasion of an erasing agent without any trace, and the coloured chalk has no stimulation effect on skin and is environment-friendly.
Description
Technical field
The present invention relates to writing implement, specifically a kind of blank pastel that fades.
Background technology
In modern teaching, although water-soluble chalk, white board marker have replaced traditional chalk to a certain extent, their development is very not smooth.The use of a large amount of organic solvents in the non-biodegradable of some pigment and the ink has certain harm to environmental and human health impacts.The various new chalk that occurs at present, although color is various and be easy to write, its writing is fugitive color not, is difficult to wipe.
Summary of the invention
The object of the present invention is to provide a kind of blank pastel that fades, this chalk fluent writing, writing on blank is clear, wipes and can fade with erasing agent, and skin is not had hormesis, environmental protection.
A kind of blank pastel that fades provided by the invention, its feed composition and content thereof are by massfraction: emulsifying wax 40-45, stearic acid 20-25, talcum powder 14-18, polyoxyethylene glycol 6-10, sodium polyacrylate 1-2, chromogenic reagent 2-4, glycerine 5-6, white carbon black 0.6-0.8.
Preferably component and content thereof are according to the mass fraction: emulsifying wax 44, stearic acid 22, talcum powder 16, polyoxyethylene glycol 7, sodium polyacrylate 1.6, chromogenic reagent 3, glycerine 5, white carbon black 0.7.
Described chromogenic reagent is Methylene blue, C.I. 42685, acid No. 3 in green one or more.
Described emulsifying wax plays carrier in component of the present invention.
Described talcum powder is more than 1200 orders, plays a part lubricated.
Described polyoxyethylene glycol is polyethylene glycol 6000, plays in the present invention the binding agent effect.
Described glycerine can replace by spent glycol.Play in the present invention solvent, moisturizing.
A kind of blank that fades provided by the invention preparation method of pastel, step is: according to said components and the good raw material of proportioning weighing, after with glycerine that chromogenic reagent is wetting, add emulsifying wax, be heated to 75-95 ℃, after it melts fully, add polyoxyethylene glycol, talcum powder, sodium polyacrylate, stearic acid, white carbon black, stir, inject mould, behind its cooling forming, take out and get final product.
Compared with prior art, the blank pastel that fades provided by the invention, fluent writing, writing are clear on blank, wipe erasing agent with the erasing agent among the CN101709174A and wipe and to fade, leave no trace, and skin is not had hormesis, environmental protection, durable.
Embodiment
The present invention will be further described below in conjunction with embodiment.Use therein emulsifying wax is that Shanghai Kenduola Wax Industry Co., Ltd. produces, chromogenic reagent is that Zhejiang Longsheng Dye Chemical Co., Ltd produces, talcum powder is the forever 1200 purpose talcum powder produced of large chemical reagent company limited of Tianjin, and polyoxyethylene glycol is polyethylene glycol 6000.
The preparation of embodiment 1, blue chalk:
Take by weighing the red adding of 0.6 gram Methylene blue 1.0 gram glycerine stir wetting after, adding 8.36 gram emulsifying waxs is heated to 90 ℃, stirs it is melted fully, then progressively add 1.34 gram polyoxyethylene glycol, 3.0 gram talcum powder, 0.3 gram sodium polyacrylate, respectively fusing, stir, after adding at last 4.18 gram stearic acid and 0.5 gram white carbon black stirring.Then cooling injects mould slightly, takes out sample behind its complete cooling and shaping.
The preparation of embodiment 2, sanguine:
Take by weighing 0.4 gram C.I. 42685 add 1.0 gram glycerine stir wetting after, adding 8.40 gram emulsifying waxs is heated to 90 ℃, stirs it is melted fully, then progressively add 1.40 gram polyoxyethylene glycol, 3.0 gram talcum powder, 0.3 gram sodium polyacrylate, respectively fusing, stir, after adding at last 4.20 gram stearic acid and 0.5 gram white carbon black stirring.Then cooling injects mould slightly, takes out sample behind its complete cooling and shaping.
The preparation of embodiment 3, green chalk:
Take by weighing 0.4 gram acid No. 3 green, after adding 1.0 gram glycerine stirrings are wetting, adding 8.36 gram emulsifying waxs is heated to 90 ℃, stirs it is melted fully, then progressively add 1.34 gram polyoxyethylene glycol, 3.0 gram talcum powder, 0.3 gram sodium polyacrylate, respectively fusing, stir, after adding at last 4.18 gram stearic acid and 0.5 gram white carbon black stirring.Then cooling injects mould slightly, takes out sample behind its complete cooling and shaping.
The preparation of embodiment 4, purple chalk:
Take by weighing 0.2 gram C.I. 42685 and 0.2 gram Methylene blue add 1.0 gram ethylene glycol stir wetting after, adding 8.36 gram emulsifying waxs is heated to 90 ℃, stirs it is melted fully, then progressively add 1.37 gram polyoxyethylene glycol, 2.8 gram talcum powder, 0.3 gram sodium polyacrylate, respectively fusing, stir, after adding at last 4.20 gram stearic acid and 0.4 gram white carbon black stirring.Then cooling injects mould slightly, takes out sample behind its complete cooling and shaping.
Claims (6)
1. the blank pastel that can fade is characterized in that, feed composition and content thereof are by massfraction: emulsifying wax 40-45, stearic acid 20-25, talcum powder 14-18, polyoxyethylene glycol 6-10, sodium polyacrylate 1-2, chromogenic reagent 2-4, glycerine 5-6, white carbon black 0.6-0.8; Described chromogenic reagent is Methylene blue, C.I. 42685, acid No. 3 in green one or more.
2. a kind of blank pastel that fades as claimed in claim 1 is characterized in that, feed composition and content thereof according to the mass fraction: emulsifying wax 44, stearic acid 22, talcum powder 16, polyoxyethylene glycol 7, sodium polyacrylate 1.6, chromogenic reagent 3, glycerine 5, white carbon black 0.7.
3. a kind of blank pastel that fades as claimed in claim 1 is characterized in that described talcum powder is more than 1200 orders.
4. a kind of blank pastel that fades as claimed in claim 1 is characterized in that described polyoxyethylene glycol is polyethylene glycol 6000.
5. a kind of blank pastel that fades as claimed in claim 1 is characterized in that, described glycerine spent glycol replaces.
6. a kind of blank of fading as claimed in claim 1 is with the preparation method of pastel, step is: according to said components and the good raw material of proportioning weighing, after with glycerine that chromogenic reagent is wetting, add emulsifying wax, be heated to 75-95 ℃, after it melts fully, add polyoxyethylene glycol, talcum powder, sodium polyacrylate, stearic acid, white carbon black, stir, inject mould, behind its cooling forming, take out and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013101.8A CN103073956B (en) | 2013-01-14 | 2013-01-14 | Fadable coloured chalk for white board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013101.8A CN103073956B (en) | 2013-01-14 | 2013-01-14 | Fadable coloured chalk for white board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103073956A true CN103073956A (en) | 2013-05-01 |
| CN103073956B CN103073956B (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310013101.8A Expired - Fee Related CN103073956B (en) | 2013-01-14 | 2013-01-14 | Fadable coloured chalk for white board |
Country Status (1)
| Country | Link |
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| CN (1) | CN103073956B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987616A (en) * | 2017-12-19 | 2018-05-04 | 东阳奇色新材料科技有限公司 | A kind of colour died away draws garment piece and its manufacture method |
| CN108659626A (en) * | 2018-07-11 | 2018-10-16 | 欧光君 | A kind of water-soluble chalk and its manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307979A (en) * | 2001-03-15 | 2001-08-15 | 石磊 | Blackboard writing pen and its making process |
| US20020195021A1 (en) * | 2001-05-11 | 2002-12-26 | Buncho Corporation | Multi-color crayon or oil pastel and method of producing the same |
| CN1908088A (en) * | 2006-08-09 | 2007-02-07 | 山西大学 | Dustless board writing liquid and liniment for the same |
| JP2007332249A (en) * | 2006-06-14 | 2007-12-27 | Sakura Color Prod Corp | Water-erasable solid drawing material |
| CN102604483A (en) * | 2012-01-15 | 2012-07-25 | 山西大学 | White board wax pencil capable of wiping up writing marks by water |
-
2013
- 2013-01-14 CN CN201310013101.8A patent/CN103073956B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307979A (en) * | 2001-03-15 | 2001-08-15 | 石磊 | Blackboard writing pen and its making process |
| US20020195021A1 (en) * | 2001-05-11 | 2002-12-26 | Buncho Corporation | Multi-color crayon or oil pastel and method of producing the same |
| JP2007332249A (en) * | 2006-06-14 | 2007-12-27 | Sakura Color Prod Corp | Water-erasable solid drawing material |
| CN1908088A (en) * | 2006-08-09 | 2007-02-07 | 山西大学 | Dustless board writing liquid and liniment for the same |
| CN102604483A (en) * | 2012-01-15 | 2012-07-25 | 山西大学 | White board wax pencil capable of wiping up writing marks by water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987616A (en) * | 2017-12-19 | 2018-05-04 | 东阳奇色新材料科技有限公司 | A kind of colour died away draws garment piece and its manufacture method |
| CN108659626A (en) * | 2018-07-11 | 2018-10-16 | 欧光君 | A kind of water-soluble chalk and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103073956B (en) | 2014-10-22 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: SHIJIAZHUANG KEDA STATIONERY CO., LTD. Free format text: FORMER OWNER: SHANXI UNIVERISTY Effective date: 20150713 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150713 Address after: 052165 No. 6, high yield Road, Shijiazhuang economic and Technological Development Zone, Hebei, Shijiazhuang Patentee after: SHIJIAZHUANG KEDA STATIONERY CO., LTD. Address before: 030006 Taiyuan, Xiaodian District, Shanxi City Road, No. 92 Patentee before: Shanxi Univeristy |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190114 |