Coated paper, also known as coated printing paper, is called coated 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, illustrations, color pictures, advertisements, samples, packaging and trademarks of all kinds of exquisite commodities.
Coated paper is flat paper, with dimensions of 787× 1092mm and 880× 1230mm, and the basis weight is 70 ~ 250 g/m2. Coated paper can be divided into single-sided coated paper, double-sided coated paper, matt coated paper and cloth coated paper. According to the quality, it is divided into three types: A, B and C. The main raw materials of coated paper are coated base paper and paint. 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 consists of high-quality white pigment and binder (such as polyvinyl alcohol and casein). ) 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, rolled into a roll on a paper winder, then sent to a super calender for calendering finishing, and finally cut, selected paper and packaged.
White cardboard, printing paper. White cardboard is a strong and heavy paper. In the past, some people planned to divide it into paper, cardboard and cardboard according to the quantity; In earlier years, white thick paper (with smooth surface and high stiffness after calendering, some people called it thin cardboard) with a weight of about 200g/m2 was called heavy paper. In fact, it is also a kind of cardboard. The most common cardboard is colorless, called white cardboard. If it is colored, it is called coloring the cardboard according to the color.
The main purpose of white cardboard is to print business cards, certificates, invitations, covers, calendars and postal postcards.