1, flat paper specification: 787×1092,850×168,880×1230; There are also some special sizes of paper.

2.Web specification: width 787, 1092,1575;

3. The length is about 6000~8000m.

The commonly used printing paper in China includes coated paper, offset paper, trademark paper, kraft paper, corrugated paper, bag paper, cellophane, moisture-proof paper and white cardboard. Offset printing requires that the surface of printing paper is smoother, the printing performance is better, and it can withstand greater temperature and humidity changes without curling.

Extended data:

Type:

1, bag paper

Wrapped paper is similar to kraft paper. Most of them are softwood kraft pulp, and some of them are mixed with bamboo pulp, cotton stalk pulp and rag pulp in China. Therefore, bag paper has high mechanical strength and is generally used to make packaging bags for industrial products such as cement, pesticides and fertilizers. In order to meet the requirements of filling, bag paper requires certain air permeability and large elongation.

2, cellophane

Cellophane is a widely used lining paper and decorative wrapping paper. Its transparency enables people to see the goods inside at a glance, and after the surface is coated with plastic, it has the properties of moisture-proof, waterproof, airtight and heat sealing, which plays a good role in protecting the goods. Compared with ordinary plastic film, it has the advantages of no static electricity, dust prevention and good kink. Cellophane is available in white and color.

3. White cardboard

It is a flat paper with smooth surface and hard texture.

4. White cardboard

White cardboard can be divided into double-sided white cardboard and single-sided white cardboard. Double-sided white cardboard is only used for packaging high-grade goods, while single-sided white cardboard is mostly used for general cartons, such as making outer packaging boxes for cigarettes, cosmetics, medicines, food, stationery and other goods.

5. Composite paper

Laminated paper, cardboard and other plastics, aluminum foil, cloth, etc. Bonding with adhesive to obtain composite processing paper. Composite processing paper can not only improve the appearance and strength of paper and paperboard, but also improve the waterproof, moisture-proof, oil-resistant, air-tight and fragrance-preserving properties, and at the same time obtain heat sealing, light blocking and heat resistance. The methods of producing composite paper include wet method, dry method, hot melting and extrusion compounding.

Baidu encyclopedia-printing paper

Baidu encyclopedia-printing paper