CN1046746A - 被膜粉笔制作液 - Google Patents
被膜粉笔制作液 Download PDFInfo
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- CN1046746A CN1046746A CN 89102642 CN89102642A CN1046746A CN 1046746 A CN1046746 A CN 1046746A CN 89102642 CN89102642 CN 89102642 CN 89102642 A CN89102642 A CN 89102642A CN 1046746 A CN1046746 A CN 1046746A
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Abstract
被膜粉笔制作液，属于聚醋酸乙烯乳液的混合液，主要是由水和浮液混合而成，按体积比为10∶1-30∶1，用其制作的被膜粉笔不掉色，不起粉末，不污染手掌和衣物并且防潮湿。
Description
一种被膜粉笔制作液，属于的稀释液。
现有聚醋酸乙烯乳液通常用在工业民用建筑木结构的胶粘领域，本发明则将其应用领域开拓并用来制作不掉色，不起粉末，不污染手掌和衣物并且防潮湿的粉笔，它解决了教学中粉笔末飞扬，恶化环境影响健康的问题。
本发明采用稀释过的聚醋酸乙烯乳液和水混合而成。水和乳液按体积比为10∶1-30∶1，用这种混合液浸泡的粉笔经干燥后在粉笔表面形成一层透明保护膜。
聚醋酸乙烯乳液虽属已有技术，但将其稀释后可用于制作被膜粉笔，其对教学环境的改善有积极意义。
Claims (2)
1、一种被膜粉笔制作液，其特征是由水和聚醋酸乙烯乳液按体积比为10∶1-30∶1混合而成。
2、根据权利要求1所述的被膜粉笔制作液，其特征是经其浸泡的粉笔干燥后在粉笔表面而形成一层透明保护膜，使粉笔不掉色、不起粉尘、不污染手掌和衣物，并且防潮湿。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102642 CN1046746A (zh) | 1989-04-29 | 1989-04-29 | 被膜粉笔制作液 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102642 CN1046746A (zh) | 1989-04-29 | 1989-04-29 | 被膜粉笔制作液 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1046746A true CN1046746A (zh) | 1990-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89102642 Pending CN1046746A (zh) | 1989-04-29 | 1989-04-29 | 被膜粉笔制作液 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046746A (zh) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468062A (zh) * | 2013-08-30 | 2013-12-25 | 龙启知 | 钕铁硼磁性粉笔 |
| CN103468061A (zh) * | 2013-08-30 | 2013-12-25 | 龙启知 | 绿色环保无尘粉笔 |
| CN103722938A (zh) * | 2012-10-11 | 2014-04-16 | 向国忠 | 一种洁净粉笔 |
-
1989
- 1989-04-29 CN CN 89102642 patent/CN1046746A/zh active Pending
Cited By (5)
| 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 |
| CN103468062A (zh) * | 2013-08-30 | 2013-12-25 | 龙启知 | 钕铁硼磁性粉笔 |
| CN103468061A (zh) * | 2013-08-30 | 2013-12-25 | 龙启知 | 绿色环保无尘粉笔 |
| CN103468062B (zh) * | 2013-08-30 | 2015-04-22 | 龙启知 | 钕铁硼磁性粉笔 |
| CN103468061B (zh) * | 2013-08-30 | 2015-09-30 | 龙启知 | 绿色环保无尘粉笔 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |