Next, I answer the main questions back and forth. First of all, let's talk about the types of books and papers we commonly use: coated paper. Mainly used for offset printing and gravure fine screen printing, such as advanced picture books, calendars, illustrations of books and periodicals, etc. Kraft paper is usually used to make paper bags, envelopes, exercise books, record covers, documents and sandpaper. Cellophane. Widely used in lining paper and decorative wrapping paper for goods. Its permeability makes the goods clear at a glance. It also has the properties of moisture-proof, waterproof, waterproof and heat sealing, and plays a good role in protecting goods. White cardboard. Mainly used for commodity packaging boxes, commodity surface linings, pictures and wall charts, etc. Matt paper. The official name is matt coated paper. The pattern printed with it is not as bright as coated paper, but it is more exquisite and upscale than coated paper. Color printing places will also have the same reflectivity as coated paper. Double-sided tape was first used in various books and teaching materials, and later used in magazines, color pages, product catalogs, maps, calendars, calendars, covers, inserts, illustrations, product manuals, cartoons, cartoon books, advertising posters, enterprise picture books, leaflets, envelopes, books, business cards, color trademarks and various packaging products.

Leather paper. Coarse grams are suitable for sample covers and tenders, and fine grams are suitable for gift packaging and binding covers. Leather paper is relatively cheap and suitable for large and small printing houses. ? So how are books and paper made? Paper making methods are divided into mechanical method and manual method. The principles of the two are similar, and the former is more suitable for industrialization. Machine-made paper can dilute the pulp to a certain concentration, preliminarily dehydrate it on the paper machine, press and dehydrate it, and finally dry it into paper. Hand-made paper is to fry the fibers in the pulp into wet paper with bamboo curtain or copper tube frame, and then press, dehydrate and dry it into paper.

The source of paper pulp, most of the fibers come from trees or other plant materials, which are crushed and mixed with hot water to form paper pulp. The above is my answer to the books and papers we use, mainly what materials are they made of. I hope it helps you.