In addition to mastering the above skills to identify the external performance of paper products, we should also pay attention to the internal performance of paper. The inner part of paper

the performance is determined by the production process. Paper is divided into whole wood pulp and straw pulp according to raw materials. The price of full wood pulp copy paper is slightly

high, but the copying effect and texture are obviously better than the latter, with less paper wool, which is beneficial to the work of copying equipment. In production

in, the acid paper and neutral paper are divided according to different processes. The price of neutral paper is slightly higher, but it is not easy to generate static electricity, complex

it is not easy to jam paper in printing and is harmless to human body. When purchasing copy paper, you should not only pay attention to the whiteness and thickness of the paper.

Degree, uniformity of paper surface, uniformity of cutting, etc. Pay special attention to the internal performance of paper on the copier

impact and impact on human body and copy effect