Copperplate paper, also known as coated printing paper, is called powder paper in regions such as Hong Kong. Its English name "Art Paper" has Chinese translations including "coated paper", "art paper", etc. It is a high-grade printing paper made by coating the original paper with white paint. It is mainly used for printing the covers and illustrations of high-end books and periodicals, color pictures, various exquisite commercial advertisements, samples, product packaging, trademarks, etc. According to the purpose, copperplate paper is divided into single-sided (single copper) and double-sided (double copper), as well as glossy and matte (satin) surfaces. It is widely used in leaflets, albums, covers, postcards, cards, sample books, and color trademarks (stickers), etc.