The thickness of paper is often measured by caliper, which is typically given in thousandths of an inch in the United States and in micrometersin the rest of the world.Paper may be between 0.07 and 0.18 millimetre (0.0028 and 0.0071 inch) thick.

To make pulp from wood, a chemical pulping process separates lignin from cellulose fibre..

What’s the common paper material does tea packing box use to print?

The moisture of greypaperboard occasionally appearshumidity is too big, hardness is not enough.

Black card paper is a strong thick, quantitative thick paper. It can divide into paper and cardboard.

A general term for a class of paper with non-combustible or refractory properties. High strength and appearance (such as high sheet smoothness and low dust).