In printing books, many aspects of the conditions will affect the quality of book, such as: printing presses, paper and printing, printing ink, staff, temperature difference will affect the quality of picture book printing. Advanced printing equipment, printing mechanic, raw material color and temporary operation, workshop working environment, the responsibility of the operator, are consideration scope.
- Thin paper printing
It is more difficult to print than thin paper. 80gsm is thin paper, thin paper in printing is easy to go wrinkling, the requirements of the machine speed to speed up the printing machine, when book printing china the appropriate adjustment of the speed of the printing machine.
2. Thick paper printing
More than 250gsm known as thick paper, thick paper printing is easy to go offset. So-called thicker paper, in the printing time to take slow machine operation while the large suction machine also to adjust to the appropriate air suction, according to the real situation on the spot debugging. Heavy paper printing machine loss is relatively large, operators must follow up and observe, according to the actual situation of the production site to give appropriate treatment, to avoid unnecessary losses.
3. Printing ink
Printing speed is too fast, not dry ink and print severe piled up, this will lead to natural reproduction, offset printing ink penetration, the phenomenon such as ghosting, skater can cause the phenomena of printing, pulling the version of this phenomenon is more serious, the above problems are very common, is easy to solve, can avoid completely.
4. Printing plate debugging
The operator is more critical, to carefully pay attention to the operation, to ensure that the paperboard feeding force balance, and layout making, assembly, correction is also the key, layout positioning, as far as possible to meet and meet the requirements of the printing plate conditions.
5. High definition
Before the printing plate, the first preparation work, everything is ready, such as: selection of printing materials, verification of all kinds of data of the printing machine, ink coating roller ink layer adjustment, roller motion pressure, printing machine speed, etc. Synchronize to ensure the quality of the print.
6. Color correction
Batch no off color, printing ink requires color is pure, bright picture is light quality, but the problems associated with the quality of the paper have some of the images of high quality print out more bright a light, and the weight of the chemical elements contained in ink, it will produce different chemical reaction in different environment, such as: moisture, temperature, high pressure, etc… So it can also lead to unusual changes in the print album, keep in mind.
7. Printing intensity
Printing machine avoid ultra-thick paper printing and full-plate printing, printing machine loss is not easy to control, in reality, encountered more than 350 grams of paper printing, many printing plants are not willing to accept orders, full-plate printing is not easy to control. In book printing china, corrugated board is a printing press the paper guide roller, printing roller is passed to the slot of molding, cardboard roller pressure in the process of transfer, the different degrees of change in its physical properties, inevitably affect the strength of the printing.
8. Pre-press trial version
Before the formal printing, it must go through an important process, usually advertising companies or manufacturers directly to cooperate with the color version.
9. After work
Edge, a film, indentation, binding is exquisite, any work after the order is very important, you can imagine, this time the effect completely, however, has said, even when you are in front of the good work, behind a carelessly will lead to the comprehensive work down the drain, so each working procedure should be done nuanced.
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