How to distinguish the type of paper How many types of paper are there?

This is mainly the size, and it is natural to distinguish it when you see a lot

Manuscript paper is B5 paper, A4 paper, and B4 paper.

According to the size of the folio, there are usually three types: large folio, medium folio, and small folio. In the case of 787 1092 paper, more than 12 folios are large folios, 16 36 folios are medium-sized folios, and less than 40 folios are small folios, but books with mainly text are generally medium-sized folios.

Except for 6 open, 12 open, 20 open, 24 open, and 40 open about a square, the rest are rectangles with different proportions, which are suitable for all kinds of books with different properties and uses.

Categories: Business Banking.

Problem description: For example: double pit paper, light paper...

According to the "Paper Industry Product Catalogue" formulated by the Ministry of Light Industry of China in 1956, the classification of mechanical paper 1Printing paper includes newsprint, letterpress printing paper, offset paper, gravure printing paper, coated paper, book cover paper, posters, etc.

2.Writing paper includes writing paper, glossy paper, typing paper, etc.

3.Drawing, drawing paper includes tracing paper, drawing paper, drawing paper.

4.Electrical insulating paper includes capacitor paper, ** paper, cable paper, insulating paper, etc.

5.Cigarette paper includes cigarette paper, cigarette holder paper, etc.

6.Absorbent paper includes blotting paper, filter paper, steel paper base paper, parchment base paper, etc.

7.Meter paper includes typed newspaper tape, roll telegram residual paper, punched card stock, etc.

8.Photosensitive paper includes photographic base paper, photosensitive base paper, etc.

9.Transfer paper base paper includes copy base paper, typing wax paper, base paper, etc.

10.Industrial technical paper includes jacquard paper, sandpaper base paper, paper rope paper, moisture-proof base paper, corrugated base paper, etc.

11.Packaging refers to ruined paper including kraft wrapping paper, straw pulp wrapping paper, wood pulp wrapping paper, waste paper wrapping paper, reed pulp wrapping paper, miscellaneous pulp wrapping paper, vegetable parchment paper, imitation parchment paper, carton paper, match paper, paper bag paper, etc.

Cardboard 1Binding cardboard includes gray waste cardboard, bound box cardboard, etc.

2.Boxboard includes straw cardboard, white cardboard, corrugated cardboard, boxboard, etc.

3.Electrically insulating cardboard includes electrically insulating cardboard, lightning feeding cardboard, etc.

4.Paper plates for industrial technology include ticket cardboard, kraft cardboard, jacquard cardboard, lettering cardboard, etc.

5.Construction cardboard includes roofing cardboard, wallboard, linoleum base paper, etc.

6.Footwear cardboard includes heel cardboard, rags, leather insoles, cardboard, etc.

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China's Ministry of Light Industry is divided into 17 categories according to the different uses of various papers, of which 11 classes are paper and 6 are cardboard. The 11 categories of paper are printing paper, writing paper, drawing paper, electric cavity insulating paper, cigarette paper, suction paper, instrument paper, photosensitive paper, transfer paper (base paper), industrial technology paper, and packaging paper. The 6 categories of cardboard are binding cardboard, box-making cardboard, insulating cardboard, industrial technical cardboard, construction cardboard, and shoe-making cardboard.

History. Judging from the archaeological discoveries so far, the invention of papermaking was no later than the early years of the Western Han Dynasty. The earliest unearthed ancient paper of the Western Han Dynasty was found in 1933 in the ancient Fengsui Pavilion of Luobu Naoer, Xinjiang, no later than 49 BC.

In May 1957, the ancient paper unearthed in Baqiao, Xi'an City, Shaanxi Province was scientifically analyzed and identified as Western Han hemp paper, and the age was no later than 118 BC. In 1973, two pieces of hemp paper dated no later than 52 BC were found in Jinguan, Juyanshoushui, Gansu Province, which were dark yellow and coarse.

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. Special number, No. 1 double-sided offset paper for printing advanced color offset printing products; No. 2 double-sided offset paper grams for printing general color prints; Single-sided offset paper is mainly used for printing and posting posters and New Year's pictures.

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.

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. Zhen Crack Yu copy paper is mainly used for printing multi-linked sheets, 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. There are many types of board paper, and the board paper used in book printing is mainly used to make the cover pressed cardboard of the hardcover book shell, and the cover pressed cardboard used to make hardcover books and picture albums.

The cardboard is all lithographed.