CN102850852A - Dust-free chalk - Google Patents
Dust-free chalk Download PDFInfo
- Publication number
- CN102850852A CN102850852A CN2012103335436A CN201210333543A CN102850852A CN 102850852 A CN102850852 A CN 102850852A CN 2012103335436 A CN2012103335436 A CN 2012103335436A CN 201210333543 A CN201210333543 A CN 201210333543A CN 102850852 A CN102850852 A CN 102850852A
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- dust
- chalk
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to a dust-free chalk which is composed of the components of, by weight: 20-25 parts of titanium dioxide, 6-8 parts of gypsum powder, 4-7 parts of anhydrous sodium sulfate, 5-9 parts of talcum powder, 6-10 parts of glycerol, 3-6 parts of Irish moss, 2-5 parts of water-soluble textile emulsion wax, and balance of water. The dust-free chalk provided by the invention has good adhesion force. With the chalk, writings can be firmly adhered to a board, and no dust is produced. The chalk has good coagulation and strength, and appropriate hardness. With the chalk, writing is smooth and fluent.
Description
Technical field
The invention belongs to the teaching aid field, be specifically related to a kind of dust-free chalk.
Background technology
The tradition chalk-writing has dust, and the teacher enters internal organ by breathing easily and gets occupational illness, and the as easy as rolling off a log moisture absorption of common chalk long storage time, and hardness descends, and it is easily broken to write.
Summary of the invention
Goal of the invention: the present invention provides a kind of dust-free chalk in order to solve the deficiencies in the prior art.
Technical scheme: a kind of dust-free chalk, described dust-free chalk is comprised of according to parts by weight following component: titanium dioxide 20-25 part, terra alba 6-8 part, Sodium sulfate anhydrous.min(99) 4-7 part, talcum powder 5-9 part, glycerine 6-10 part, sea moss 3-6 part, water-soluble textile emulsion wax 2-5 part, surplus is water.
As preferably, described dust-free chalk is comprised of according to parts by weight following component: 22 parts of titanium dioxides, and 7 parts of terra albas, 6 parts of Sodium sulfate anhydrous.min(99), 7 parts of talcum powder, 8 parts of glycerine, 5 parts of sea mosss, 4 parts of water-soluble textile emulsion waxs, surplus is water.
Beneficial effect: the present invention has good sticking power, the writing of writing can firm attachment on the plate face and do not produce dust, have good solidifiability and intensity, hardness is moderate, writes smoothly.
Embodiment
The present invention will be described in detail below in conjunction with specific embodiment.
Specific embodiment 1:
A kind of dust-free chalk, described dust-free chalk is comprised of according to parts by weight following component: titanium dioxide 20 grams, terra alba 6 grams, Sodium sulfate anhydrous.min(99) 4 grams, talcum powder 5 grams, glycerine 6 grams, sea moss 3 grams, water-soluble textile emulsion wax 2 grams add water to 100 grams.
Specific embodiment 2:
A kind of dust-free chalk, described dust-free chalk is comprised of according to parts by weight following component: titanium dioxide 25 grams, terra alba 8 grams, Sodium sulfate anhydrous.min(99) 7 grams, talcum powder 9 grams, glycerine 10 grams, sea moss 6 grams, water-soluble textile emulsion wax 5 grams add water to 100 grams.
Specific embodiment 3:
A kind of dust-free chalk, described dust-free chalk is comprised of according to parts by weight following component: titanium dioxide 22 grams, terra alba 7 grams, Sodium sulfate anhydrous.min(99) 6 grams, talcum powder 7 grams, glycerine 8 grams, sea moss 5 grams, water-soluble textile emulsion wax 4 grams add water to 100 grams.
Claims (2)
1. dust-free chalk, it is characterized in that: described dust-free chalk is comprised of according to parts by weight following component: titanium dioxide 20-25 part, terra alba 6-8 part, Sodium sulfate anhydrous.min(99) 4-7 part, talcum powder 5-9 part, glycerine 6-10 part, sea moss 3-6 part, water-soluble textile emulsion wax 2-5 part, surplus is water.
2. dust-free chalk as claimed in claim 1, it is characterized in that: described dust-free chalk is comprised of according to parts by weight following component: 22 parts of titanium dioxides, 7 parts of terra albas, 6 parts of Sodium sulfate anhydrous.min(99), 7 parts of talcum powder, 8 parts of glycerine, 5 parts of sea mosss, 4 parts of water-soluble textile emulsion waxs, surplus is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103335436A CN102850852A (en) | 2012-09-11 | 2012-09-11 | Dust-free chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103335436A CN102850852A (en) | 2012-09-11 | 2012-09-11 | Dust-free chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102850852A true CN102850852A (en) | 2013-01-02 |
Family
ID=47397848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103335436A Pending CN102850852A (en) | 2012-09-11 | 2012-09-11 | Dust-free chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102850852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419489A (en) * | 2015-12-11 | 2016-03-23 | 苏州冰心文化用品有限公司 | Green environment-friendly dust-free chalk and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450128A (en) * | 2003-04-21 | 2003-10-22 | 王力 | Dust free chalk and preparation process thereof |
-
2012
- 2012-09-11 CN CN2012103335436A patent/CN102850852A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450128A (en) * | 2003-04-21 | 2003-10-22 | 王力 | Dust free chalk and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419489A (en) * | 2015-12-11 | 2016-03-23 | 苏州冰心文化用品有限公司 | Green environment-friendly dust-free chalk and preparation process thereof |
| CN105419489B (en) * | 2015-12-11 | 2018-01-30 | 苏州冰心文化用品有限公司 | A kind of green dust-free chalk and its preparation technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |