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Electrostatic copy paper is one of the most common office stationery items at present, but for its quality standards, few people know how to identify. At present, the grade of office paper can be divided into three levels. The first-grade paper is used for external documents of the enterprise; the second-grade paper is used for large-scale external copying documents; the third-grade paper is generally used for internal use of the enterprise, and the text is not required to be too high.
Generally speaking, low water content is better. The water content of special paper for copiers is usually about 5%. Generally, the moisture content of acid printing paper reaches 8-10%. The moisture content of the copy paper cut with acid printing paper is too large, the density is low, the paper is too soft, it is easy to jam when copying, the machine is used more, when the heat is generated, the copy paper Because it is heated, it will also produce acid vapor, which will corrode the photocopier and be harmful to the human body. In addition, in the wet season, paper jams, unclear printing, dust in the fuselage, abnormal paper output, multiple tapes, etc. are also easy to occur. Without anti-static chemical treatment or low processing technology, electrostatic adsorption will occur and multiple sheets will appear. Paper feeding, especially when the weather is dry. At the same time, static electricity will blacken the appearance of the paper inlet, paper dust is absorbed on the paper, the paper inlet and the copier body, and spots will be generated when copying.
When purchasing, you can carefully touch the copy paper to see if it is smooth and there is no dust; if there is dust, it is bad copy paper. The thinner the higher the processing level, the greater the density, the better the stiffness and moisture resistance. The copy paper cut by acid printing paper is thick, soft, rough, and has a large water content, and the greater the damage to the copier. It should be reminded that the whiteness of the copy paper is mainly a visual impact. The paper is too white because too much luminescent agent is added, so the copy paper is not as white as possible.
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