Planographic plate for laser digital scanning and manufacture method thereof

Abstract

The invention relates to printing lithography, in particular to a printing lithographic plate (UV-CTP) for laser digital scanning and the preparation method thereof. The preparation method of the printing lithographic plate (UV-CTP) comprises the following steps: firstly cleaning, neutralizing, electrolyzing and oxidizing aluminum plate strip materials and hole-sealing to obtain the plate base; then, spread-coating the prepared photosensitive coating liquid on the plate base through extruding; and obtaining the UV-CTP after drying. The UV-CTP plate, following the photosensitive CTP plate and the thermosensitive CTP plate, belongs to a novel plate which can be directly imaged through computer digital laser scanning without pretreatment. Compared with the conventional PS plate and CTP plate, the UV-CTP plate has the following characteristics and advantages that the aluminum plate rolling technique with low deformation rate and low surface defect ensures that the plate base of the plate has better physical properties, particularly, the UV-CTP plate is advantageous in manufacturing cost, preservation period and universality over other CTP plates; and the UV-CTP plate has the characteristics of high dot reducibility, high photosensitive speed, great operating latitude and wide application, etc., therefore, the UV-CTP plate is applicable to printing materials, such as metal, plastic, etc., by the UV ink.

Description

technical field

[0001] The invention relates to a printing plate, in particular to a printing plate (UV-CTP) for laser digital scanning and a preparation method thereof. Background technique

[0002] The China Printing and Equipment Industry Association proposed a 28-character policy for the development of my country's printing and equipment industry in the first 10 to 15 years of the 21st century, namely: "Pre-press digital, network, printing multi-color, high-efficiency, post-press diverse, automated , high-quality and serialized equipment." It points out the direction for the future technological development of China's printing industry. Under the development trend of digitalization in the printing industry, the digitalization of prepress work such as design and plate making plays a decisive role in the quality of printed products and printing efficiency, and has become the core of the entire printing process. Computer-to-plate (CTP) technology has attracted more and mor...