How to judge the quality of coated paper is good or bad?
Do you know how good the quality of coated paper is judged? Coated paper according to the quality is divided into A, B, C three. The main raw material for coated paper is copperplate paper and paint. Copper plate on the requirements of the thickness of uniform, scalability, high strength, good water resistance. Paper, such as kaolin, barium sulfate, etc.), adhesives (such as polyvinyl alcohol, casein, etc.) and auxiliary additives and other components of. This high-fluid, high-solids coating is spread on the base paper by a coating machine and then uniformly dried, rolled into a roll on a reel, and sent to a super-calender for calendering Finishing, final cutting, picking paper, packing.
Coated paper is characterized by very smooth and smooth paper, smooth, high gloss. Because the paint used by the brightness of more than 90%, and the particles are very fine, and after the super calendar calendering, so the smoothness of coated paper is generally 600 ~ 1000s. At the same time, the paint is very evenly distributed on paper and show pleasing white. The requirements for coated paper is thin and uniform coating, no bubbles, the amount of adhesive in the paint appropriate to prevent the printing process of paper powder off hair, in addition, the coated paper p-xylene absorption should be appropriate. The same time as
Cloth coated paper is pressed with the old blanket, which in addition to paper flat, high brightness, but also to print out the graphics, the screen has three-dimensional, so this coated paper can be widely used to print pictorial, advertising, Landscape painting, fine calendar, figure photography and so on.