CN86210076U - 涂料粉笔 - Google Patents

涂料粉笔 Download PDF

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Publication number
CN86210076U
CN86210076U CN 86210076 CN86210076U CN86210076U CN 86210076 U CN86210076 U CN 86210076U CN 86210076 CN86210076 CN 86210076 CN 86210076 U CN86210076 U CN 86210076U CN 86210076 U CN86210076 U CN 86210076U
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CN
China
Prior art keywords
chalk
coating
utility
model
hand
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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.)
Ceased
Application number
CN 86210076
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English (en)
Inventor
赵力人
田树成
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN 86210076 priority Critical patent/CN86210076U/zh
Publication of CN86210076U publication Critical patent/CN86210076U/zh
Ceased legal-status Critical Current

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Abstract

一种在黑板上写字用的涂料粉笔,在普通粉笔的表面涂上一层透明涂料,可防止粉笔的粉尘粘手,为粉笔使用者创造良好的工作条件。

Description

涂料粉笔
一种书写用涂料粉笔,用于在黑板上写字。
现在使用的粉笔易脱粉,使用时其粉尘粘到手上,对手有腐蚀作用,并对使用者的手造成污染,很不卫生。
本实用新型的任务是提供一种改进的粉笔,防止粉笔的粉尘粘手,为粉笔使用者造创造良好的工作条件。
本实用新型是这样实现的:在普通粉笔表面涂上透明涂料,经干燥之后,该涂料在粉笔表面形成一层牢固的涂料层隔离粉笔母体和手。
本实用新型使用方便,易生产,机械强度高,成本低。
附图是涂料粉笔的示意图。
本实用新型的实施例参照附图进行说明。采用同粉笔附着力较好的涂料涂在普通粉笔母体〔2〕上,经干燥之后,形成涂料层〔1〕,该涂料层〔1〕隔离普通粉笔母体〔2〕与手,从而,可防止粉笔的粉尘粘手。涂料可采用各种透明涂料,最好采用羧甲基纤维素。
其配方如下:(重量%)
羧甲基纤维素        2
硼砂        1
防腐剂        适量
水        97

Claims (1)

  1. 一种书写用涂料粉笔,具有粉笔母体[2],其特征在于粉笔母体[2]的表面涂有一层透明涂料层[1]。
CN 86210076 1986-12-10 1986-12-10 涂料粉笔 Ceased CN86210076U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 86210076 CN86210076U (zh) 1986-12-10 1986-12-10 涂料粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 86210076 CN86210076U (zh) 1986-12-10 1986-12-10 涂料粉笔

Publications (1)

Publication Number Publication Date
CN86210076U true CN86210076U (zh) 1987-08-19

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ID=4811831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 86210076 Ceased CN86210076U (zh) 1986-12-10 1986-12-10 涂料粉笔

Country Status (1)

Country Link
CN (1) CN86210076U (zh)

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Termination date: 19880302

CE01 Termination of patent right