As an important material in the printing industry, coated paper has a unique structure and superior performance, providing a solid foundation for high-quality printed products.
The structure of coated paper is mainly composed of two parts: coated base paper and coating. As a base, the coated base paper requires uniform thickness and low elasticity to ensure the stability and dimensional accuracy of the paper during subsequent processing. At the same time, the base paper must have high strength and good water resistance so that it can withstand various forces during coating and printing.
Coating is the key to the performance of coated paper. High-quality coatings are composed of white pigments, adhesives and auxiliary additives. These ingredients are precisely proportioned to give coated paper a smooth and delicate surface and excellent printing suitability. The high whiteness and fine particle size of the coating enable the coated paper to present clear and bright patterns and texts after printing.
The structure of coated paper determines its unique performance. The surface of the paper is smooth and flat with high smoothness, which allows the ink to be evenly distributed during printing, presenting a beautiful printing effect. At the same time, the good glossiness of coated paper can enhance the visual effect of printed products and make them more attractive.
In addition, coated paper also has good tensile strength and surface strength, which can resist the tension generated by the ink film during printing and ensure the quality and stability of printed products. Its dimensional stability is also better than other types of paper, which can meet the needs of precision printing.
Coated paper on the market is divided into three grades: A, B, and C according to quality. The quantitative weight is generally 70~150g/m², and double-sided coating can even reach 180~250g/m². Coated paper of different types and specifications meets the diversified needs of the printing industry.
Understanding the structure and characteristics of coated paper will help us make better use of this material and provide a strong guarantee for the high-quality presentation of printed products.