复印纸知识大全（Copy paper knowledge）
鸭胗的功效与作用
In the daily work, the frequency of copy paper is the highest, and the quality of copy paper will directly affect the efficiency of the work and the beauty of the text. The copy paper can arou the staff's irritability, and how to buy the good office paper, it is necessary to understand the basic properties and related knowledge of the copy paper. At prent, the level of office paper can be divided into three levels. First grade paper should be ud for enterpri external documents, two grade paper ud in a large number of copies of foreign documents, three grade paper is generally ud for internal u of enterpris, the requirements are not too high text. General paper insights: with AKD neutral sizing Yang, non corrosive, a paper raw materials are made of 100% pure wood pulp, does not produce paper powder, soft, no matter how to u will not wear copier needsprint head. In static electricity, the first grade paper is also treated with static electricity. A paper requirement is 100% pure wood pulp, paper powder can not afford the same crisp, water content is 4.5%-5.5%; level two: paper properties with AKD sizing Yang, non corrosive, filler is relatively soft, does not produce paper powder, electrostatic treatment, generate jamming accident, normal u will not appear in the copy not clear, wrinkling, tilted phenomenon. The low level than the whiteness of the paper, feel slightly thin, two paper is economicapplicable; three stage paper performance: suitable for printer, copy paper jam will appear,
prone to print hair shadow phenomenon, not easy to long time standing, easy walking. In daily work, generally ud for printing drafts. Now the copier performance has been greatly improved,
测绘实习报告Basically can adapt to all kinds of high and low grade paper, copy will not appear cardboard.
贡献毛益Paper classification
First, the fiber ratio
Neutral paper: the pulp is 100% wood pulp. Not easy to pick up paper, not fragile, not easy to cardboard.
Acidic paper: pulp pulp pulp as / / cotton / recycled pulp mixed slurry. Easy to pick up paper, fragile, easy to cardboard.
Two. Sizing process
Neutral paper: ADK neutral sizing agent is added into the puree. The corrosion of the copier is small, the copier wear is small, after high temperature and high pressure copy does not produce harmful acid gas.
Acid paper: the pulp is acidic. The corrosion of the copier is large, and the copier wear is very large. After the high temperature and high pressure copy, it will produce harmful acid gas.
Distinguishing copy paper standards
Whiteness
The whiteness of the copy paper in the Chine market is 88 degrees to 96 degrees
The whiteness of the copy paper in the American market is 72 degrees
The whiteness of the copy paper in Japan market is 80 degrees
2, stiffness
末世纪的呼声The paper is made of pure wood pulp, which has longer fiber and better toughness.
什么是谓语动词
3, slitting
Ream cutting: the whole paper is cut at once, the wrapping paper is neat, but there is a rectangular gap in the whole wrapping paper.
Cut: each piece is cut once, the edge of the wrapping paper is slightly irregular, but each paper is a standard rectangle.
董事长乐队4, evenness
That is, the uniformity of the fiber distribution on the paper, the three modes of distribution:
(1) irregular block distribution
The pulp is mixed or recycled pulp, and the fiber evenness is poor.
总经理(2) uniform mesh distribution
The vision is the most homogeneous, but the stiffness is the worst.
(3) longitudinal strip distribution
The evenness and stiffness are the best among the three, the virgin pulp is pure wood pulp, the fiber is longer, the evenness is better, and the paper jam rate is the lowest in the copy.
5, weight
The paper with the same ba has a slightly thinner handle, a high degree of tightness and a high level of processing, a good moisture resistance, a high smoothness, and a clearer copy. The thicker the paper is, the lower the tightness and the lower the processing level, the moisture content is higher than the standard level, and the copy effect is poor.
6. Water content and static electricity treatment
薛岳将军According to the international standard water content is 4.5% - 5.5%, the moisture content is too high, resulting in the duplication is not clear, wrinkling, cardboard and other phenomena.
7. Electrostatic treatment
Electrostatic treatment of the copy paper will not appear in the u of multi page feeding situation.
Basic shopping principle
1, paper quality paper
Sheets can be either white or colored. In order to ensure smooth paper, the paper must be cut cleanly and precily. You may find that some inexpensive paper does not cut accurately, and the siz
e of the paper may deviate from the declared size of the package by 2-3 millimeters, and the cheap paper may be dusty. The problems should be avoided
2, paper weight
In printing, the paper must pass through a precision paper path. So too light or too heavy paper may refu to enter the printer. So light or heavy paper is usually not suitable for most printers. Regular paper jams. Most lar printers are designed to u about 80-90 paper per square meter, or 20-24 pounds per unit of U.S. Some lar printers u 60 grams per square meter of paper,
But this is an exception, not a universal phenomenon.
3. Paper status
All paper must be kept clean, wet paper cannot be properly fed, and may be tilted or folded on the paper path. The quality of printing on wet paper is usually poor. On a lar printer, the wet dot may appear blurry (or unable to display). In all cas, the paper shall be insulated from dust and dust, dust and dust that may contaminate the printer's machinery, and be sure to
