General exercise book:
Washable exercise books suitable for primary and secondary school students.
The utility model relates to a pen writing medium, in particular to a washable exercise book suitable for primary and secondary school students. The utility model relates to a universal exercise book, which is mainly composed of novel nano-material oil film paper and paper, and the paper is covered with a layer of oil film paper.
Paper covered with a new nano-material oil film paper is bound into exercise books. The utility model is different from the traditional paper, and it can be erased by ordinary media after writing with a pen, so that the paper can be recycled in the hands of users, and it really achieves zero energy consumption and environmental protection.
Paper is a great invention of Han nationality. In today's society, the use of paper has been inseparable from people's lives. However, the waste water, waste gas, waste residue, toxic substances and noise produced in the production of paper industry will cause serious pollution to the environment.
Recycling papermaking process can really save resources and reduce energy consumption. However, if this paper can be recycled from users, it will undoubtedly be a new type of environmental protection paper with zero energy consumption.
In order to solve the above problems, the purpose of this utility model patent is to provide a new writing paper exercise book, so as to solve the problems that ordinary paper cannot be scrubbed after writing, and the exercise books of primary and secondary school students cannot be recycled.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a universal exercise book mainly includes novel nano-material oil film paper and paper, and the paper is covered with a layer of novel nano-material oil film paper.
The utility model has the advantages that: different from the traditional paper, the paper can be erased by ordinary media after being written with a pen, so that the paper can be recycled in the hands of users, and it is truly zero energy consumption, green and environmentally friendly.