The official name of version paper is printing coated paper, commonly known as coated paper, and it is called art paper in Hong Kong and other regions. Coated paper is a high-grade printing paper made of base paper coated with white paint. It is mainly used for printing high-grade book covers and illustrations, color pictures, various exquisite commodity advertisements, picture albums, commodity packaging, etc.
Coated paper can be divided into glossy coated paper, matte coated paper and matte coated paper according to the glossiness.
The glossiness of paper is determined by the smoothness of the paper surface, and the smoothness is related to the fiber type, beating degree and calendering degree, filler content ratio, and sizing method. Generally, the higher the apparent smoothness, the higher the gloss.
1. How to improve paper gloss
1) Coating process: For the coated paper, the fine coating particles will fill the concave and convex gaps on the surface of the paper, thereby improving the smoothness and gloss of the paper.
2) Calendering process: After the coated paper is calendered, the gloss of the paper will be greatly improved.
2. The effect of paper surface gloss on printing quality
3) The glossiness of paper is an important indicator of printing paper, and the uniformity of glossiness is an important evaluation indicator. Paper with uneven gloss will affect the visual effect of printed matter. Therefore, in the process of testing paper gloss, a gloss meter will be used to measure paper gloss, and multi-point testing will be performed to analyze the uniformity of paper gloss. Weifu photoelectric gloss meter WG series has stable performance and accurate measurement, and is widely used in coating and paper printing industries.
Therefore, the gloss of the paper itself does not represent the quality of the paper. This depends on usage and customer preference. However, the uniformity of paper gloss is an important evaluation criterion for paper quality. Poor gloss uniformity directly affects printing quality, chromatic aberration, uneven reflection, etc., and directly affects visual effects.
