Find the type of paper, there are several types of paper

Paper is often seen in daily life, although it is a very commonly used paper, but there are many types of it, the first is letterpress printing paper, this quantitative is about 50 to 80 grams per square, usually used to print books. Then there is newsprint, which is called white newspaper, and the amount is about 51 grams, which is mainly used in newspapers or periodicals. Jiaozhen shouts board printing paper, the quantity is about 60 to 180 grams, coated paper, this quantitative is about 90 to 250 grams, this kind of can not be folded, it is very troublesome to restore after a slight crease.

Book covers, which are 80 to 120 grams, have a lot of colors, and are usually used on different covers.

6 kinds.

Paper classification is the category of paper, which is classified according to the manufacturing method, including non-coated paper, coated paper and photogravure printing paper; According to the classification of use, there are ** printing paper, art printing paper, book printing paper and news printing paper. According to the application, conventional paper can be roughly divided into six categories.

1. Household paper: including toilet paper, napkins, diapers, sanitary napkins, wet wipes, etc.; 2. Printing paper: including coated paper, newsprint, writing paper, dictionary paper, Dowling paper, etc.; 3. Wrapping paper:

Including: whiteboard paper, white cardboard, kraft paper, kraft paper, corrugated paper, containerboard, cigarette paper, moisture-proof paper, transparent paper, aluminum foil, trademark, label paper, fruit bag paper, etc. 4. Industrial paper:

Including release paper, carbon paper, insulating paper, filter paper, test paper, capacitor paper, pressure paper, dust-free paper, impregnated paper, sandpaper, rust-proof paper, etc.

5. Office and cultural paper: including drawing, drawing paper, copy paper, art paper, copy paper, fax paper, printing paper, copy paper, photo paper, rice paper, thermal paper, etc. 6. Special paper:

Including butter paper, steel ancient paper, decorative base paper, water pattern paper, leather paper, gold and silver cardboard, pattern paper, anti-counterfeiting paper, etc.

1. Letterpress printing paper: referred to as letterpress paper, the product packaging form is divided into roll and lithograph. Letterpress paper weighs from 50 grams to 80 grams per square meter.

There are three types of product numbers: special number, No. 1 and No. 2. Special and No. 1 letterpress paper is used for printing high-grade books, and No. 2 letterpress paper is mainly used for printing general books, textbooks, and periodicals.

2. Newsprint: also known as white newspaper, the packaging form is also divided into roll and lithograph. The amount of newsprint is about 51 grams, and it is mainly used for printing newspapers and periodicals.

3. Offset printing paper: referred to as offset paper, the quantitative amount is 60-180 grams, and there are double-sided offset paper and single-sided offset paper. Among them, 70-120 grams of double-sided offset paper is the most widely used. There are three kinds of double-sided and single-sided offset paper product numbers: special number, No. 1 and No. 2.

4. Coated paper: Coated paper is coated with a layer of coating liquid on the base paper, which is made by super calendering. The quantitative amount is 90-250 grams, and there are double-sided coated and single-sided coated paper.

There are three kinds of product numbers: special number, No. 1 and No. 2. Special coated paper is used for printing delicate products with network cables of more than 150 grams; No. 1 coated paper is used for printing 120-150 network cable products; No. 2 coated paper can print products with network cables below 120 grams. Coated paper is not resistant to folding, and once creases appear, it is extremely difficult to recover.

5. Book cover paper: the quantitative amount is 80-120 grams, mainly used for the cover of books and periodicals. The book cover paper is available in a variety of colors to suit the needs of printing a variety of different covers.

6. Dictionary paper: divided into No. 1 and No. 2, with a quantitative amount of 25-50 grams, mainly used for printing dictionaries and manuals. Dictionary paper is highly hygroscopic and will wrinkle when exposed to moisture.

7. Copy paper: Copy is the transliteration of English copy, which means copying. Copy paper is mainly used for printing multi-linked sheets, and is suitable for copying and typing. Because the copy paper is translucent, it is mainly used in book printing to protect the pages with image pages.

8. Boardboard: The paper with a quantity of more than 250 grams of square meters is called boardboard, or cardboard.

<>1. First of all, it is letterpress printing paper, which is about 50 to 80 grams per square, and is usually used to print books.

2. Then there is newsprint, which is also known as white newspaper, and the quantity is about 51 grams, which is mainly used in newspapers or periodicals.

3. Offset printing paper, the quantitative is about 60 to 180 grams, coated paper, this quantitative is 90 to 250 grams of left oak right, this kind of can not be folded, it is very troublesome to restore after a slight crease.

4. Book cover paper, this kind of quantitative is 80 to 120 grams of pickpockets, and there are many colors, which are usually used on different covers.