Wear-resistant type anion book cover
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 赵晓晨
- Publication Date
- 2018-09-07
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of school supplies, in particular to an anion-resistant wear-resistant book cover. Background technique
[0002] The book cover is a layer of paper or cloth wrapped around the outermost part of the book to protect the book. It was originally used to bind and protect the inner pages. Probably the earliest form was based on bags. If the contents of the bag did not need to be replaced frequently, the inner pages were fixed in the book cover with rope or glue. In the 19th century, people used wood, leather, etc. , gold, and silver were used as book covers, because books were very expensive at that time. With the development of technology, the price of books dropped, and it was no longer economical to use wood and other materials for book covers. Instead, there is cloth and paper, and with cloth and paper, people can also print on it to make the book more beautiful.
[0003] However, the current book covers are...