CN2544957Y - 环保粉笔 - Google Patents

环保粉笔 Download PDF

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Publication number
CN2544957Y
CN2544957Y CN 01276933 CN01276933U CN2544957Y CN 2544957 Y CN2544957 Y CN 2544957Y CN 01276933 CN01276933 CN 01276933 CN 01276933 U CN01276933 U CN 01276933U CN 2544957 Y CN2544957 Y CN 2544957Y
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chalk
utility
model
environmentally friendly
teacher
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CN 01276933
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梁树清
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Individual
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Abstract

本实用新型涉及一种教师在教学中经常使用的教学用品——粉笔,其特征是粉笔的表面喷洒了一层较薄的酚醛调合漆(清漆),形成保护膜它可以防止粉笔灰脱落,运输、使用、携带时较为清洁卫生。

Description

环保粉笔
本实用新型涉及一种教师在教学中常用的教学用品。
粉笔是教师进行课堂教学所必不可少的工具。通过粉笔把知识传授给学生,但在使用过程中,粉笔表面的粉笔灰易沾在教师的手掌、手指、及其它部位,即不清洁,也不卫生。
本实用新型的目的是要提供一种不会轻易掉粉笔灰的粉笔。
本实用新型的目的是这样实现的:在普通粉笔的表面喷洒一层较薄的酚醛调合漆(清漆)或其它化学物质。此物质在粉笔的表面形成一层保护膜,粉笔上的粉笔灰就不会轻易脱落。
本实用新型由于表面有一层保护膜,所以在使用时粉笔灰不会脱落,更不会沾在使用者的手掌、手指及其它部位;其次运输存放也较为干净整洁,携带方便;再次,由于表面保护膜较薄,所以不会影响书写效果。
(图一)(图二)是根据本实用新型提出的示意图。
本实用新型的具体结构由以下的实施例及附图给出。
下面结合(图一)(图二)详细说明本实用新型的具体装置细节及工作情况。
该粉笔由粉笔(图一)及保护膜(图二)构成,粉笔的表面喷洒一层较薄的酚醛调合漆(清漆)或其它化学物质,在粉笔的表面形成一层较薄的保护膜(图二),这样在使用过程中粉笔表面就不会有粉笔灰脱落,更不会给使用者的手掌、手指或其它部位沾上粉笔灰。

Claims (2)

1、一种教师用来在黑板上书的环保粉笔,其特征是粉笔的表面有一层薄的保护膜。
2、根据权利要求1所述的环保粉笔,其特征是保护膜既可以是酚醛调合漆(清漆),也可以是其它化学物质。
CN 01276933 2001-12-14 2001-12-14 环保粉笔 Expired - Fee Related CN2544957Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01276933 CN2544957Y (zh) 2001-12-14 2001-12-14 环保粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01276933 CN2544957Y (zh) 2001-12-14 2001-12-14 环保粉笔

Publications (1)

Publication Number Publication Date
CN2544957Y true CN2544957Y (zh) 2003-04-16

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ID=33680867

Family Applications (1)

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CN 01276933 Expired - Fee Related CN2544957Y (zh) 2001-12-14 2001-12-14 环保粉笔

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CN (1) CN2544957Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722938A (zh) * 2012-10-11 2014-04-16 向国忠 一种洁净粉笔

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722938A (zh) * 2012-10-11 2014-04-16 向国忠 一种洁净粉笔

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