What is coated paper?

What is coated paper?
Coated paper, also known as coated printing paper, is called powder paper in Hong Kong and other regions. It is a high-quality printing paper made of base paper coated with white paint. Mainly used for printing the covers and illustrations of high-end books and periodicals, color pictures, various exquisite product advertisements, samples, product packaging, trademarks, etc.
The coated paper is flat paper, the size is 787×1092mm, 880×1230mm, and the basis weight is 70～250g/square meter. Coated paper is divided into single-sided coated paper, double-sided coated paper, matte coated paper, and cloth coated coated paper. According to the quality, it is divided into three grades: A, B and C. The main raw materials of coated paper are coated base paper and paint. The requirements for the copperplate base paper are uniform thickness, low flexibility, high strength, and good water resistance. The paper surface is not allowed to have spots, wrinkles, holes and other paper defects. The coating used for coating is composed of high-quality white pigments (such as kaolin, barium sulfate, etc.), adhesives (such as polyvinyl alcohol, casein, etc.) and auxiliary additives. of. This kind of paint with high fluidity and high solid content is applied to the base paper thinly and evenly by the coater, then dried, rolled into a roll on the reel, and then sent to the super calender for pressing Finishing, final cutting, paper selection, and packing.