Origin and development of Dalian exclusive Galapagos color printing

Origin and development of Dalian exclusive Galapagos color printing

  According to relevant materials, lithography is German invented by AloisSenefelder in 1798, he was put on a chunky limestone oily pattern is directly printed on the paper. Now all kinds of lithography are used for high-speed offset printing machine and small offset printing machine for printing, the yield is much more than any other printing method. The reaction nature shot with color printing method of photography of rich color change, color photo artist or other art works including pictures of many different colors, for process request or for considering economic benefits, must pass through the electronic scanner or color desktop system scan color, then adopt four to realize the copy printing process. To deal with the large area of dark color, adopt four-color printing process, high salt may be required by number of outlets and superposition of several types of color ink layer is too thick, easy to get dirty and back; the adoption of spot color printing technology, printing as a color, not easy to appear back dirty. Adoption of four-color printing process, some parts of the image may be decomposed by a few colors; and the adoption of spot color printing process, the response of the site only printed a color, to prevent the occurrence of overprint bias.

  General senior packaging and decoration printing products, color plan has a large area of multi order continuous tone images and complex lines, pattern, printing method to print a single ideal results. If adopt flat printed embossed ties, namely the operation pressure relief printing machine, a large area of interest average ink printing the spot color, the continuous harmonic complex line, lithographic printing machine pressure flat soft printing four-color such interests from each other, the more ideal. Gravure printing plate making method according to the varieties are divided into two categories: (a handcrafted gravure gravure engraving machine, engraving gravure gravure), two varieties of corruption. This results in a anti-counterfeiting gravure printing inks with good general skills is.