Sand dyeing printing process method

Abstract

The invention discloses a sand dyeing printing process method. A common multi-color offset printing machine with one more chromatic degrees and can perform gloss oil coating on line is adopted. The sand dyeing printing process method comprises the following steps that 1, one black, one blue, one red and one yellow offset printing CTP printing plate are manufactured by using a CTP plate making machine, a full page oil pressing rubber blanket is manufactured for full page coating of gloss oil; 2, according to the color sequence of black, blue, red and yellow, four CTP printing plates are installed on a unit corresponding to the printing machine to print a printing stock, so that the color printing and the paper surface form a designed pattern; 3, after printing of the color, the printing stock is then subjected to full page coating by the gloss oil; and 4, Drying is carried out, in the drying process, the four-color ink forming a pattern does not need to be dried separately, and a lightsource is used for curing the gloss oil. An ink film resists friction, enhances stereoscopic impression and improves the quality of printed products, visual aesthetics and product packaging grade, common offset printing ink is adopted, the cost is reduced, green and environmental protection is achieved, and good economic and environmental benefits are achieved.

Description

Technical field [0001] The invention relates to the field of offset printing, and more specifically, to a sand dye printing process method. Background technique [0002] The so-called sand dye printing is the performance of the finished product after printing: the part of the plate printed with patterns or colored blocks has a matte-like texture, while the non-patterned part, the plate itself, presents a high-brightness mirror gloss. [0003] In the prior art, the process that can achieve the "sand dye printing" effect is the traditional UV reverse printing process, but the traditional UV reverse printing process has the following shortcomings: [0004] 1. The imitation sand grain printing plate needs to be made separately, and two kinds of varnishes are required to react to form the so-called sand imitation effect. [0005] 2. Need to use UV ink and UV plate printing, the manufacturing cost is higher. [0006] 3. Two kinds of varnishes are required to react to form a sand-like effect,...