CN2489974Y - 一种粉笔 - Google Patents

一种粉笔 Download PDF

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Publication number
CN2489974Y
CN2489974Y CN 01246220 CN01246220U CN2489974Y CN 2489974 Y CN2489974 Y CN 2489974Y CN 01246220 CN01246220 CN 01246220 CN 01246220 U CN01246220 U CN 01246220U CN 2489974 Y CN2489974 Y CN 2489974Y
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China
Prior art keywords
chalk
utility
model
cleaning film
pen core
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Expired - Fee Related
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CN 01246220
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English (en)
Inventor
丁鹤峰
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Individual
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Individual
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Priority to CN 01246220 priority Critical patent/CN2489974Y/zh
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Publication of CN2489974Y publication Critical patent/CN2489974Y/zh
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Abstract

本实用新型涉及一种粉笔。它笔芯的外表面上涂覆清洁膜。本实用新型除具有粉笔的书写功能外,还具有增加粉笔强度、使得粉笔表层光洁、减少粉尘脱落、不沾污手指的优点。

Description

一种粉笔
本实用新型涉及一种书写工具,尤其是涉及一种将黑板作为书写对象的粉笔。
长期以来,粉笔在日常生活和工作上的应用是十分广泛的。它在使用中有粉尘飞扬、污染手指的弊端。
本实用新型的目的是提供一种弥补现有技术缺陷的的粉笔。
本实用新型的目的是这样实现的:一种粉笔,笔芯的外表面上涂覆清洁膜。本实用新型的实施方法同现有技术。
本实用新型所提出的任务还可进一步通过如下技术方案加以实现:清洁膜是纯丙烯酸聚合物乳液。
本实用新型由于采用上述技术方案,除具有粉笔的书写功能外,还具有增加粉笔强度、使得粉笔表层光洁、减少粉尘脱落、不沾污手指的优点。
下面结合附图对本实用新型的具体实施方式作进一步详细描述:
附图为本实用新型结构(纵剖面)示意图。
参照附图。本实用新型的笔芯1上涂覆清洁膜2。

Claims (2)

1.一种粉笔,它包括笔芯,其特征是:笔芯的外表面上涂覆清洁膜。
2.根据权利要求1所述的一种粉笔,其特征是:清洁膜是纯丙烯酸聚合物乳液。
CN 01246220 2001-06-28 2001-06-28 一种粉笔 Expired - Fee Related CN2489974Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01246220 CN2489974Y (zh) 2001-06-28 2001-06-28 一种粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01246220 CN2489974Y (zh) 2001-06-28 2001-06-28 一种粉笔

Publications (1)

Publication Number Publication Date
CN2489974Y true CN2489974Y (zh) 2002-05-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01246220 Expired - Fee Related CN2489974Y (zh) 2001-06-28 2001-06-28 一种粉笔

Country Status (1)

Country Link
CN (1) CN2489974Y (zh)

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C19 Lapse of patent right due to non-payment of the annual fee
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