CN102399477A - 无尘粉笔 - Google Patents

无尘粉笔 Download PDF

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Publication number
CN102399477A
CN102399477A CN2010102767876A CN201010276787A CN102399477A CN 102399477 A CN102399477 A CN 102399477A CN 2010102767876 A CN2010102767876 A CN 2010102767876A CN 201010276787 A CN201010276787 A CN 201010276787A CN 102399477 A CN102399477 A CN 102399477A
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CN
China
Prior art keywords
dust
free chalk
parts
chalk
free
Prior art date
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.)
Pending
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CN2010102767876A
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English (en)
Inventor
徐长斌
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Individual
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Individual
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN2010102767876A priority Critical patent/CN102399477A/zh
Publication of CN102399477A publication Critical patent/CN102399477A/zh
Pending legal-status Critical Current

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Abstract

本发明公开了一种无尘粉笔,由熟石膏、氧化镁、聚乙烯醇、聚丙二醇、水组成。本发明配方合理,使用效果好,生产成本低。

Description

无尘粉笔
技术领域:
本发明涉及一种无尘粉笔。
背景技术:
现有的无尘粉笔,效果不理想,生产成本高。
发明内容:
本发明的目的在于提供一种使用效果好的无尘粉笔。
本发明的技术解决方案是:
一种无尘粉笔,其特征是:由下列重量份的成分组成:
熟石膏        82份
氧化镁        7份
聚乙烯醇      0.5份
聚丙二醇      0.5份
水            90份。
本发明配方合理,使用效果好,生产成本低。
下面结合实施例对本发明作进一步说明。
具体实施方式:
实施例1:
一种无尘粉笔,由下列重量份的成分组成:
熟石膏    82份
氧化镁        7份
聚乙烯醇      0.5份
聚丙二醇      0.5份
水            90份。

Claims (1)

1.一种无尘粉笔,其特征是:由下列重量份的成分组成:
熟石膏    82份
氧化镁    7份
聚乙烯醇  0.5份
聚丙二醇  0.5份
水        90份。
CN2010102767876A 2010-09-09 2010-09-09 无尘粉笔 Pending CN102399477A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102767876A CN102399477A (zh) 2010-09-09 2010-09-09 无尘粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102767876A CN102399477A (zh) 2010-09-09 2010-09-09 无尘粉笔

Publications (1)

Publication Number Publication Date
CN102399477A true CN102399477A (zh) 2012-04-04

Family

ID=45882155

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102767876A Pending CN102399477A (zh) 2010-09-09 2010-09-09 无尘粉笔

Country Status (1)

Country Link
CN (1) CN102399477A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102876136A (zh) * 2012-09-11 2013-01-16 启东新加源化工有限公司 无尘粉笔
CN103468062A (zh) * 2013-08-30 2013-12-25 龙启知 钕铁硼磁性粉笔
CN111363414A (zh) * 2018-12-25 2020-07-03 湖南昌迅科技环保股份有限公司 以盐石膏为原料制备粉笔的方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102876136A (zh) * 2012-09-11 2013-01-16 启东新加源化工有限公司 无尘粉笔
CN103468062A (zh) * 2013-08-30 2013-12-25 龙启知 钕铁硼磁性粉笔
CN111363414A (zh) * 2018-12-25 2020-07-03 湖南昌迅科技环保股份有限公司 以盐石膏为原料制备粉笔的方法

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Application publication date: 20120404