Tonghe traditional printing classification

Printing paper is divided into coated paper, offset paper, trademark paper, kraft paper, corrugated paper, bag paper, cellophane, moisture-proof paper, white cardboard and so on.

1, coated paper

Coated paper is also called printed coated paper. The surface of the base paper is coated with a layer of white paint, and the base paper is made of super calendering. It is divided into single-sided paper and double-sided paper, and the paper surface is divided into light splitting and cloth grain. The paper has smooth surface, high whiteness, good ink absorption and ink adhesion.

2. Offset paper

Offset paper has small flexibility, uniform ink absorption, good smoothness, compact and opaque texture, good whiteness and strong water resistance. Conjunctival offset printing ink and good quality lead ink should be selected.

3. Kraft paper

Kraft paper has high tear strength, breaking work and dynamic strength. Most of them are roll papers, but there are also flat papers. Kraft softwood pulp was used as raw material to make pulp and paper in fourdrinier machine.

It can be used as cement bag paper, envelope paper, adhesive paper, asphalt paper, cable protection paper, insulating paper, etc.

4. Corrugated paper

The invention and application of corrugated paper has a history of more than 100 years, which has the advantages of low cost, light weight, easy processing, high strength, good printing adaptability, convenient storage and handling, etc.

5, cellophane

Cellophane is a kind of film made of natural fibers such as cotton pulp and wood pulp by gluing. It is transparent, non-toxic and tasteless. Because air, oil, bacteria and water do not easily penetrate cellophane, it can be used as food packaging.

Baidu encyclopedia-coated paper

Baidu encyclopedia-offset paper

Baidu encyclopedia-kraft paper

Baidu encyclopedia-corrugated paper

Baidu encyclopedia-cellophane