Positive PS plate: the leading force in the field of lithography

In the vast ocean of printing technology, positive PS plate has firmly occupied a dominant position in the field of lithography with its unique charm and excellent performance. Since its birth, lithography, an ancient and vibrant printing method, has won wide recognition and application for its efficient and accurate image and text reproduction capabilities. As an indispensable key material in lithography, positive PS plate has made great contributions to the improvement of printing quality with its outstanding performance characteristics.

The art and science of lithography
Lithography, also known as offset printing, is a printing technology based on the principle of selective adsorption and repulsion of ink and water on the surface of the printing plate. In this process, the image part on the printing plate can absorb ink, while the non-image part repels ink and transfers the ink to the substrate through a rubber roller, thereby achieving accurate reproduction of the image. This printing method is not only suitable for various paper materials, but also can show excellent printing effects on a variety of media such as plastics and metals.

The unique advantages of positive PS plate
The key to the dominant position of positive PS plate in lithography lies in its series of unique performance advantages. First of all, the positive PS plate has excellent photosensitivity, can accurately sense the exposure of ultraviolet light, and form a clear and precise outline of the image on the photosensitive layer. This feature enables the positive PS plate to easily achieve high-resolution image reproduction during the platemaking process, meeting the extremely high requirements of printed materials for details and clarity.

Secondly, the positive PS plate also has excellent wear resistance and printing durability. During the long printing process, the printing plate needs to withstand friction and impact from various media such as ink, rubber blanket and paper. The photosensitive layer and aluminum base of the positive PS plate after special processing have high hardness and wear resistance, which can effectively resist the erosion of these external forces and maintain the stability and durability of the printing plate. At the same time, the positive PS plate also has a high printing durability, and its image quality and printing effect can remain stable even after a large number of printings.

Wide range of scenarios for lithographic printing
The wide application of positive PS plates in lithographic printing is not only reflected in the traditional field of book printing, but also covers packaging printing, advertising and promotional materials and other aspects. In book printing, positive PS plates can accurately reproduce text, lines and images, ensuring the clarity and readability of book content; in packaging printing, positive PS plates can present rich colors and delicate patterns, enhancing the visual effects and added value of products; in the field of advertising materials, positive PS plates have won the favor of advertisers with their high clarity and high color reproduction.

As the leading material in lithographic printing, positive PS plates provide strong support for the improvement of printing quality with their excellent photosensitivity, wear resistance, printing durability and high resolution. In the future development, with the continuous advancement of printing technology and the increasing diversification of the printing market, positive PS plates will continue to play their unique advantages and bring more innovations and breakthroughs to the field of lithographic printing.