Purchase of wanjinyou ordinary copy paper

The quality of printing is not only related to the printing resolution, the ink or toner cartridge, but also the selection of printing paper. At present, the printing paper commonly available in the market is mainly divided into ordinary copy paper, ink-jet printing paper, photo printing paper, as well as special paper for printing photo stickers, printing transparent film and transfer paper.

The characteristic of all-purpose oil is that it can be used anywhere, but "cure the symptoms but not the root cause", which can only solve the urgent needs of the moment.

Ordinary copy paper is like all-purpose oil. Its price is cheap and its use frequency is very high. It is necessary to print text, tables and legends. Although its technical content is relatively low, it is quite competent for general document printing. In the absence of other printing paper, it can also play a temporary "peace" role. The most important thing is that it also has a huge advantage of low cost. Generally, the price of a pack of A4 copy paper (500 sheets per package) ranges from 15 yuan to 25 yuan. So the office can be less any kind of paper, but can not be less than ordinary copy paper. Here's what you should pay attention to when choosing and using:

1. Eye care knowledge to understand, not the whiter the better

What kind of ordinary printing paper is the best? I think most people will answer, "one white covers a hundred ugliness", the whiter the better. Is that so? White paper may be harmful to people's health. According to the color to distinguish, copy paper can be divided into bleaching and white two categories. Bleached paper is whiter and may work better with text printing. It is recommended to use it on the outside because it will look beautiful. However, for ordinary family use or internal use in the company, it is recommended to use white copy paper, which is conducive to eye protection, because under the light, too white paper will reflect a stronger glare. Experts point out that too white copy paper will glare, and even affect vision. In addition, some manufacturers have also launched color copy paper, the price is more expensive than ordinary white, users can pay attention to in the market.

2. Choose the right weight

According to the weight, copy paper is usually divided into four common grades: 70g, 80g, 90g and 100g (all commonly known in the market, and the formal expression should be × g / m2). The more the weight, the stronger and more durable. It should be noted that you must avoid buying copy paper weighing less than 60 grams. Such paper is relatively thin and easy to wrinkle. And the friction coefficient between the paper is also relatively large, easy to cause multi page feeding and paper jam phenomenon, affecting the life of the printer. From the point of view of economy and applicability, 70 grams of neutral copy paper should be enough for general office paper.

3. Choose and buy to distinguish between neutral and acidic

According to the production process, copy paper can be divided into acid paper and neutral paper, consumers should recognize. Neutral paper is 100% wood pulp. Because of its long fiber and good binding force between fibers, it is not easy for fibers to fall off in the process of friction with equipment, that is, it is not easy to produce dust, which has a good protective effect on the machine and operators. In addition, neutral paper without corrosion, so that the paper is not easy to fade, can be stored for a long time, will not carry static electricity, and is harmless to human health. However, acid paper is a mixture of wood pulp and straw pulp. The straw pulp fiber is short and easy to produce dust. Acid paper has corrosive effect, which makes paper easy to change color and is not easy to be stored for a long time. Acid gas is easy to be produced at high temperature, which is harmful to human body. These two kinds of paper can be completely separated by hand feeling, and consumers will not be cheated as long as they pay attention to it.