The hottest questions about printing materials 4

2022-08-22
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Some questions about printing materials (4)

what is coated paper

coated paper, also known as coated printing paper, is called pink paper in Hong Kong and other regions. It is a high-grade printing paper made of base paper coated with white paint. It is mainly used for printing the covers of high-end books and periodicals and service trips - running illustrations, color pictures, various exquisite commodity advertisements, samples, commodity packaging, trademarks, etc

coated paper is flat paper with size of 787 × 1092mm,880 × 1230mm, the quantitative value is 70 ~ 250G/m  2. Copper gb/t 1463 test method for density and relative density of fiber reinforced plastics master paper can be divided into single-sided master paper, double-sided master paper, matte master paper and cloth master paper. According to the quality, it is divided into a, B and C. The main raw materials of coated paper are coated base paper and coating. The requirement for coated base paper is uniform thickness. Geon bio bio bio PVC modified material nondestructive testing (NDT) has been successfully developed. It is an essential and effective tool for industrial development, with small shrinkage, high strength and good water resistance. The paper surface shall be free of 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. This kind of coating with high fluidity and high solid content is thinly and evenly painted on the base paper through the coater, then dried, rolled into a roll on the paper coiler, and then sent to the super calender for calendering and finishing, and finally cut, selected and packed

coated paper is characterized by its very smooth surface, high smoothness and good gloss. Because the whiteness of the coating used is more than 90%, and the particles are very fine, and then calendered by the super calender, the smoothness of coated paper is generally 600 ~ 1000s. At the same time, the paint is evenly distributed on the paper, showing a pleasing white. The requirements for coated paper are that the coating is thin and uniform, without bubbles, and the amount of adhesive in the coating is appropriate to prevent the paper from de powdering and hair falling during the printing process. In addition, the absorption of coated paper to xylene should be appropriate

cloth coated paper is pressed with old blankets. In addition to its flat surface and high whiteness, it also makes the printed graphics and pictures have a three-dimensional sense. Therefore, this kind of coated paper can be widely used to print pictorials, advertisements, landscape paintings, exquisite calendars, figure photography, etc

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