How to narrow the difference of the prospectus that print and presswork

3, cent appearance causes the cause that pressworks to make close difference with plate making, put forward a few contractible presswork the method with difference of draw a design:
　　
1, draw a design uses thicker, whiter copperplate normally piece, be out of shape small, set combine precision tall, and beautiful. And pressworking is big batch production, use paper should consider cost, paper to be out of shape a variety of elements such as rate, whiteness. Use impossibly so thicker whiter copper is made an appointment with. Presswork to narrow the difference with draw a design, must consider when draw a design presswork, make paper of in order to and presswork consistent.
　　
2, lubricious foreword problem. What consider normally when draw a design is to wash Chinese ink to go to the lavatory, general first of light color of draw a design, hind draw a design is brunet. And presswork Shi Zegang is very contrary, mass-tone (black) imprint first, deputy color (green) hind imprint. For the difference of draw a design of island of contractible face the music, must consider when draw a design presswork, first draw a design is brunet, hind light color of draw a design.
　　
3, superimposition means: It is wet when draw a design pressure work, namely first after the Chinese ink of draw a design sets period of time, chinese ink layer is measurable and dry, again the next of draw a design is lubricious. And when pressworking, be wet pressure wet, around pressworks time is very short, chinese ink layer has not enough time dry. To this problem, only one-time when draw a design seasonable a few color draw a design is over.
　　
4, embossing means: Round planish is when draw a design, and circle pressing circle is when pressworking, below the same width that press thick line, the compression of the round printing machine that press a circle measures one times be machine of round planish draw a design. Accordingly, adjusting presswork when pressure, cannot become the key pressing thick line of two machine consistent, should adjust namely the ply that include line.
　　
5, presswork to differ with the speed of draw a design, of the printing ink on the conglutinate force because of this paper and printing ink, paper and platen come off force is unequal. Rate of machine of draw a design is low, platen, printing ink, mackintosh comes off to paper force is small, the layer of prospectus Chinese ink that lays is thick, the site is bright and clean, enlarge a value small, administrative levels is rich, contrast is big. Printing machine rate is rapid, be in commonly 8000 imprint / hour, presswork the time that corresponding particle place engages between the face decreases somewhat. Because printing ink is right of paper come off force increases, reduced Chinese ink to measure move, make on-the-spot and disloyal, the site is not strong, report is on presswork Chinese ink layer is thin, contrast is small. Want to reduce the difference of this respect, from presswork angle is told, want proper control chance fast; Use tough package line; Day reduces weight the dosage of fluid of little benefit edition. Decreased to come off so force, make layer of presswork Chinese ink is added thick, the site enlarges a value to reduce, increase contrast thereby.
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