letterpress paper is the main paper for letterpress printing books and magazines. Relief paper can be divided into four grades: No.1, No.2, No.3 and No.4 according to the composition ratio of paper materials. The number of paper represents the quality of paper, and the greater the number, the worse the paper quality.
weight: 49 ~ 6) 2g/m2.
specifications of flat paper: 787×l92, 85×ll68, 88xl23; And some paper with special size specifications.
specifications of the web: the width is 787mm, 192mm and 1575mm, and the length is about 6m ~ 8OOM.
2. Newsprint
Newsprint, also called white newspaper, is the main paper for newspapers and books.
weight: 49 ~ 52) 2g/m2
size of flat paper: 787× 192mm, 85xll68mm, 88xl23mm.
specifications of web: width 787mm, 192mm and 1575mm; The length is about 6 ~ 8 meters.
3. Offset paper
Offset paper is mainly used for lithographic (offset) printing machines or other printing machines to print advanced color printed materials, such as color pictorial, picture album, poster, color printing trademark and some advanced books, as well as book covers and illustrations. Offset paper is divided into special number, No.1 and No.2 according to the ratio of pulp materials, with single-sided and double-sided, and with two grades of super calendering and ordinary calendering.
weight: 5,6,7,8,9,1,12,15,18 g/m2.
flat paper size: 787 ×l92; 85×1168 mm.
web specifications: 787mm, 192mm, 85mm.
4. Coated paper
Coated paper, also known as printing coating paper, is made by coating a layer of white paste on the base paper and pressing it.
weight: 7,8,1,12,15,18,2,21.24,25g/m2.
size of flat paper: 648× 953mm, 787× 97mm and 787× 192mm
5. Pictorial newspaper
The texture of pictorial newspaper is fine and smooth, which is suitable for printing pictorial, picture books and posters.
weight: 65 ,91 and 12g/m2
size of flat paper: 787×l92.
6. written paper
written paper, also called book cover paper, is the paper used for printing book covers.
weight: 12g/m2.
flat paper specifications: 69× 96mm, 787×l92.
7. embossed paper
embossed paper is a kind of paper specially produced for surface decoration.
weight: 15 ~ 18g/m2.
flat paper specifications: 787×l92, 85×ll68.
8. bible paper
bible paper is a kind of advanced thin paper for books and periodicals, which is thin, strong and folding-resistant, white and meticulous, compact and smooth in texture, slightly transparent and has certain water resistance. Mainly used for printing dictionaries, classic books and other books with more page numbers and easy to carry.
weight: 3 ~ 4g/m2.
flat paper size: 787×l92.
9. Wool paper
Wool paper is thin and soft, light yellow and hairless. Wool edge paper should only be printed on one side, mainly for ancient books.
1. Writing paper Writing paper is paper for writing with ink, and the paper is required to be free from writing. Writing paper is mainly used for factory printing exercise books, diaries, forms and account books. Writing paper is divided into special number, No.1, No.2, No.3 and No.4..
weight: 45,5,6,7,8 g/m2.
flat paper specifications: 427× 569mm, 596× 834mm, 635×lll8 8mm, 834×ll72, 787×l92.
web size: 787mm, 192mm.
11. Typing paper
Typing paper is a thin sheet of paper, which is thin and flexible. It is required not to pierce holes when typing, and it will not be scratched by the nib when copying with a hard pencil. Mainly used for printing documents, forms and multi-copy vouchers. It is used as spacer paper and printing and packaging paper in books.
weight: 2 ~ 25g/m2.
flat paper specifications: 787×l92, 56× 87mm, 686× 864mm, 559× 864mm.
12. Youfeng paper
Youfeng paper is used to print various carbon copies and printing and packaging paper in printing.
weight: 25 ~ 28g/m2.
flat paper size: 787×l92.
13. Cowper paper
Cowper paper is thin and flexible, suitable for printing multi-copy copies; It is used to protect art works and play an aesthetic role in book binding.
weight: 17 ~ 2g/m2.
flat paper size: 787×l92.
14。 Self-printed paper
White paper has small flexibility, toughness, and is not easy to break when folded, and is mainly used for printing packaging boxes and commodity sulphurized lining paper.
weight: 22,24.25,28,3,35,4 g/m2.
flat paper specifications: 787× 787mm, 787× 192mm, 192× 192mm.
15. Kraft paper
Kraft paper has a high tensile force, such as single light, double light, stripes and no lines. Mainly used for wrapping paper, envelopes, paper bags, etc. and printing machine cylinder lining, etc.
flat paper specifications: 787× 192mm, 85xll68 68mm, 787×ll9, 857×ll2.