Copperplate paper is also known as coated printing paper, and in Hong Kong and other regions it is called powder paper. It is a high-grade printing paper made of raw paper coated with white paint. It is mainly used for printing the covers and illustrations of high-class books and magazines, color pictures, various kinds of fine commodity advertisements, samples, commodity packaging, trademarks, etc.
Copperplate paper is a high-grade printing paper made of raw paper coated with white paint. It is mainly used for printing the covers and illustrations of high-class books and magazines, color pictures, various fine commodity advertisements, samples, commodity packaging, trademarks, etc.
The characteristic of coated paper is that the paper surface is very smooth and flat, with high smoothness and good gloss. At the same time, the coating is very evenly distributed on the paper surface and shows a pleasant white color. The requirements for coated paper is thin and uniform coating, no bubbles, the amount of adhesive in the coating is appropriate to prevent the printing process of paper off powder and hair, in addition, coated paper to xylene absorption should be appropriate.
There are single-sided coated paper, double-sided coated paper, lusterless coated paper and cloth coated paper. According to the quality, it is divided into A, B and C. The main raw material of coated paper is copper Zhuan original paper and coating. The requirements of the original copper plate paper is uniform thickness, small stretch, high strength, good water resistance. The paper surface is not allowed to have spots, wrinkles, holes and other paper diseases, and the coating used for coating is composed of high-quality white pigments, adhesives (such as polyvinyl alcohol, casein, etc.) and auxiliary additives. This liquidity and high solids content of the coating, through the coating machine thin and evenly coated in the original paper, and then dried, rolled into a roll on the paper machine, and then sent to the super calender for calendering finishing, and finally slitting, paper selection, packing.
A coating processing paper for copperplate printing. It can be coated on one or both sides according to different applications. Available in flat sheets and rolls. The quantity is generally 70~150g/m2, but also double-sided coated up to 180v250g/m2. The paper is uniform and tight, with high whiteness (85% or more), smooth glossy paper surface, and firm and consistent coating, which is convenient for obtaining fine and clear patterns and text after printing. Copper plate paper is made of bleached chemical wood pulp or with partly bleached chemical straw pulp on the paper machine. With the original paper as the paper base, the white pigment (also known as white clay, such as kaolin, talc, calcium carbonate, titanium dioxide, etc.), adhesives (polyvinyl alcohol, casein, modified starch, synthetic latex, etc.), and other auxiliary materials (such as gloss, hardener, plasticizer, dispersant, wetting agent, emulsifier, fluorescent whitening agent, toner, etc.), in the coating machine for uniform coating process, and by drying and super calendering The product is made by uniform coating process on the coating machine, and dried and super calendered. It is used for advanced art printing, wall calendars, posters, picture books, color illustrations, book covers and advertising trademarks. The characteristic of coated paper is that the paper surface is very smooth and flat, with high smoothness and good gloss. The smoothness of coated paper is generally 600v1000s because the whiteness of the coating used is more than 90% and the particles are very fine, and it is calendered by super calender, so the smoothness of coated paper is generally 600v1000s. The requirements for coated paper have a high coating strength, thin and uniform coating, no bubbles, the amount of adhesive in the coating is appropriate to prevent the paper from dusting and falling off during the printing process, in addition, the absorption of xylene on coated paper to be appropriate, can be suitable for more than 60 lines / cm fine mesh printing.