Traditional Culture Encyclopedia - Photography major - Are white cardboard and single coated paper the same kind of paper?

Are white cardboard and single coated paper the same kind of paper?

Not ~

White cardboard:

Single-layer or multi-layer combined paper made entirely of bleached chemical pulp and fully sized, suitable for printing and product packaging, with a general basis weight of more than 15g/㎡. This kind of cardboard is characterized by high smoothness, good stiffness, neat appearance and good evenness. Can be used for business cards, menus or similar products.

white cardboard is a kind of strong, thick and heavy paper. In the past, some people planned to divide it into paper, cardboard and cardboard based on quantity; The most common cardboard is not colored, which is called white cardboard. If colored, it is called coloring cardboard according to the color. White cardboard requires high whiteness. The whiteness of A is not less than 92%, B is not less than 87%, and C is not less than 82%.

the surname of white cardboard is "white", so it requires high whiteness. The whiteness of A is not less than 92%, B is not less than 87%, and C is not less than 82%. If the whiteness exceeds 9%, it will be a bit "bright and dazzling".

white cardboard also requires high stiffness, bursting resistance and smoothness (except for white cardboard embossed with patterns), and the paper surface is flat, free from paper defects such as streaks and spots, and free from warping and deformation.

coated paper:

a kind of coated paper for coated printing. [1] According to different uses, it can be divided into single-sided or double-sided coating. There are flat paper and roll paper. The basis weight is generally 7 ~ 15g/m2, and it is also 18 ~ 25g/m2 by double-sided coating. The paper is uniform and compact, with high whiteness (above 85%), smooth and high gloss, and the coating is firm and consistent, which is convenient for obtaining exquisite and clear patterns and characters after printing. Coated base paper is made of bleached chemical wood pulp or partially bleached chemical straw pulp on a paper machine. White pigment (also called clay, such as kaolin, talcum powder, calcium carbonate, titanium dioxide, etc.), adhesive (polyvinyl alcohol, casein, modified starch, synthetic latex, etc.) and other auxiliary materials (such as gloss agent, hardener, plasticizer, dispersant, wetting agent, milky white agent, fluorescent whitening agent, toner, etc.) are evenly mixed on the coating machine. Used for advanced art printing, calendars, posters, picture books, color illustrations, book covers and advertising trademarks.

coated paper, also known as coated printing paper, is called art paper in Hongkong and other regions. It is an advanced printing paper made of base paper coated with white paint. It is mainly used for printing covers and illustrations of advanced books and periodicals, color pictures, all kinds of exquisite commodity advertisements, samples, commodity packaging, trademarks and so on.

coated paper is flat paper with dimensions of 787×192mm and 88×123mm, and the basis weight is 7 ~ 25 g/m2. Coated paper can be divided into single-sided coated paper, double-sided coated paper, matte coated paper and cloth coated 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 requirements for coated base paper are uniform thickness, small flexibility, high strength and good water resistance. There are no paper defects such as spots, wrinkles and holes on the paper surface. 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. The coating with high fluidity and high solid content is thinly and evenly coated on the base paper by a coating machine, then dried, wound into a roll on a paper winding machine, then sent to a super calender for calendering finishing, and finally cut, selected paper and packaged.

coated paper is characterized by its smooth surface, high smoothness and good gloss. The smoothness of coated paper is generally 6 ~ 1 s because the whiteness of the coating used is above 9%, the particles are extremely fine, and it is calendered by a super calender. At the same time, the paint is evenly distributed on the paper and shows a pleasing white color. The requirements for coated paper are high coating strength, thin and uniform coating, no bubbles, proper amount of adhesive in the coating to prevent the paper from shedding powder and hair during printing. In addition, the coated paper should have appropriate absorption of xylene, which can be suitable for fine mesh printing with more than 6 lines/cm.

Cloth coated paper is pressed with old blankets, which not only makes the paper flat and high-whiteness, but also makes the printed graphics and pictures feel solid, so this kind of coated paper can be widely used for printing pictorial, advertisement, landscape painting, exquisite calendars, portraits and so on.

coated paper is one of the main papers used in printing houses. Coated paper is commonly known, and its official name should be printing coating paper. It is widely used in current real life. Almost all the beautiful calendars you see, posters sold in bookstores, book covers, illustrations, art books, picture albums, etc. are coated paper, and it is also used in a large number of beautifully decorated packages, paper handbags, labels and trademarks. Coated paper is a paper made by coating and decorating the base paper. Its surface is smooth and detailed, and it can be divided into two sides and one side. The paper can be divided into glossy and matte coated paper. Commonly used coated paper is divided into various thickness specifications from 15 grams per square meter to 35 grams per square meter. In the sales of coated paper, the size of a single sheet of paper is generally divided into two sizes: generous (889mm×1194mm) and positive (787mm×192mm). The price of coated paper per ton is about 5,-6, yuan, and the price of a 2-gram coated paper with generous size is about 1.2 yuan.

Cloth coated paper is pressed with old blankets, which not only makes the paper flat and high-whiteness, but also makes the printed graphics and pictures feel solid, so this kind of coated paper can be widely used for printing pictorial, advertisement, landscape painting, exquisite calendars, portraits and so on.