Reward score: 0- analysis time: March 2008-14 1 1: 38.

Questioner: 50 15642—— There are different printing methods, and the corresponding paper must be selected according to the requirements and characteristics of the use and printing process. The following are some commonly used publishing paper specifications for your reference:

1. letterpress paper

Letterpress paper is the main paper for letterpress printing books and magazines. It is suitable for important works, scientific and technological books, academic publications and college teaching materials. Embossed paper can be divided into four grades according to the composition ratio of paper materials: 1, 2, 3 and 4. The quantity of paper represents the quality of paper. The greater the quantity, the worse the quality of paper.

Relief printing paper is mainly used for relief printing. The characteristics of this kind of paper are similar to those of newsprint, but they are not exactly the same. The fiber structure of letterpress paper is relatively uniform, at the same time, the gaps between the fibers are filled with a certain amount of fillers and sizing agents, and after bleaching, this paper with good printing adaptability is formed. Although its ink absorption is not as good as newsprint, it has the characteristics of uniform ink absorption; The water resistance and whiteness of paper are better than newsprint.

Relief paper has the characteristics of uniform texture, lint-free, slightly elastic, opaque, slightly water-resistant and certain mechanical strength.

Weight: (49-60) 2g/m2

Flat paper specifications: 787×1092,850×1168,880×1230; There are also some special sizes of paper.

Mesh size: width 787, 1092, 1575.

The length is about 6000m-8000m.

2. Ink

Newsprint, also known as white newspaper, is the main paper of newspapers and books. Suitable for newspapers, periodicals, textbooks, comics and other text papers. Newsprint is characterized by: the paper is light and elastic; Good ink absorption ensures that the ink can be better fixed on the paper. After calendering, both sides of the paper are smooth and lint-free, so that the printed matter on both sides is clear and full; Have certain mechanical strength; Good opacity; Suitable for high-speed rotary printing.

This kind of paper is made of mechanical wood pulp (or other chemical pulp) and contains a lot of impurities such as lignin, which is not suitable for long-term storage. If the paper is stored for too long, it will turn yellow and brittle, and its water resistance is poor, so it is not suitable for writing. Printing ink or book ink must be used, the viscosity of the ink should not be too high, and the water content of the page must be strictly controlled during lithography.

Weight: (49-52) 2g/m2

Specification of plain paper: 787×1092,850×1168,880×1230.

Web specification: width 787, 1092,1575; The length is about 6000m-8000m.

3. Offset paper

Offset paper is mainly used for lithography (offset printing) presses or other presses to print advanced color printed matter, such as color pictorial, picture album, poster, color printing trademark, and some advanced book covers and illustrations.

Offset paper can be divided into special number, 1 number, No.2 and No.3 according to the proportion of pulp, which can be divided into single-sided and double-sided, and there are two grades of super calendering and ordinary calendering.

Offset paper has small flexibility, uniform ink absorption, good smoothness, compact and opaque texture, good whiteness and strong water resistance. Conjunctival offset printing ink and good quality lead ink should be selected. The viscosity of ink should not be too high, otherwise there will be powder removal and galling. Also to prevent the back from getting dirty, generally use antifouling agent, dusting or lining paper.

Weight: 50, 60, 70, 80, 90, 100, 120, 150, 180 (g/m2)

Specification of plain paper: 787×1092,850×1168,880×1230.

Mesh size: width 787,1092,850.

4. Coated paper

Coated paper, also known as coated paper, is made by coating a layer of white slurry on the base paper and calendering. The paper has smooth surface, high whiteness, uniform distribution of paper fibers, uniform thickness, low flexibility, good elasticity, smooth surface, high whiteness, uniform distribution of paper fibers, uniform thickness, low flexibility, good elasticity, strong water resistance and tensile resistance, and very good absorption and acceptability of ink. Coated paper is mainly used for printing picture books, covers, postcards, exquisite product samples and colored trademarks. When printing coated paper, the pressure should not be too high, and offset printing resin ink and bright ink should be used. In order to prevent the back from sticking dirty, methods such as adding antifouling agent and dust removal can be adopted. There are two types of coated paper: single-sided and double-sided

Weight: 70,80, 100, 105,15, 120, 128, 150,/kloc-.

Among them, 105, 1 15, 128, 157(g/m2) have more imported paper specifications.

Specification of plain paper: 648×853, 787×970, 787× 1092 (there is no roll paper in China at present). 889× 1 194 is the specification of imported coated paper.

Draw a newspaper

Colored newspapers are thin and smooth, and are used to print pictorial, picture books and posters.

Weight: 65,90, 120 (g/m2)

Specification of plain paper: 690× 960,787×1092

6. Written papers

Writing paper, also called book cover paper, is the paper used to print book covers. Writing paper is made of pigments, such as gray, blue and beige.

Weight: 80, 100, 120 (g/m2)

Specification of plain paper: 690× 690,787×1092.

7. silk paper

Embossed paper is specially produced and used for cover decoration. There is an inconspicuous pattern on the surface of the paper. Colors are gray, green, beige and pink, which are generally used for printing monochrome covers. Embossed paper knees, the spine is easy to break when binding. When printing, the paper is bent and it is difficult to feed paper, which affects the printing efficiency.

Weight:120-40g/m2

Specification of plain paper: 787× 1092

Another way of classification:

Super double coated paper

Compared with general coated paper, the paper has higher gloss, better smoothness, white and meticulous paper, bright printing color, excellent gradation and contrast, and is suitable for advanced color printed matter. Suitable for advanced books, catalogs, calendars, posters and covers.

Snowflake coated paper

Both sides are treated with special powder, the paper is soft and elegant, with matte effect, refreshing and comfortable vision, no reflection, high opacity, good printing color saturation and vividness, and excellent texture. Suitable for ancient paintings, picture albums, calendars, magazines, books, special issues, catalogues, posters and other purposes.

Double coated paper

Both sides of the paper are smooth and white, with good gloss and high opacity. After color printing, the pattern effect is bright and the color level is good, which is suitable for color printing. Suitable for general books, catalogs, calendars, posters, covers and other purposes.

Single coated paper

Paper coating and gluing are carried out at the same time, so the paper is bright, smooth and even in ink absorption, which is suitable for single-sided color printing and can be glued on the back. Suitable for labels, posters, pasting and release paper.

Super ivory daolin

Paper color is ivory, soft and effective, non-reflective, non-dazzling, high opacity, smooth paper, suitable for reading.

Marking paper

Paper is soft in color, smooth and meticulous, non-reflective and non-dazzling, suitable for advanced books and picture albums.

Baidaolin

Paper is white in color, good in thickness, neutral in sizing production, and can be preserved for a hundred years without discoloration. Suitable for books, books, product manuals, envelopes, notebooks, calendars, etc.

All-wood forest paper

Pulp is mainly long fiber, and the paper has strong tear resistance, excellent stiffness and high smoothness, so it is the best grade paper for forest paper. Suitable for magazine inserts (transfer sheets), books, product manuals, postcards, envelopes and desk calendars.

Magazine paper (high white magazine)

This kind of paper is light, shiny and white. Therefore, compared with the general yellow paper color, it can show the contrast and bright color of printing, and it is the best thin-pound high-grade paper in China. Suitable for magazines, DM, books and periodicals, weekly magazines, color brochures and mail-order color promotional materials.

Snow forest paper

After micro-coating, the paper is as white as snow, smooth and meticulous, non-reflective and non-dazzling, suitable for advanced books and picture albums.

Super white forest

The whiteness of the paper is high, the paper is smooth and meticulous, and the printed products are in sharp contrast.