Fourth, other control aspects
In addition to the above-mentioned aspects, the operator in the printing job should also pay attention to the following issues:
(1) Carefully read the ticket, strictly follow the requirements of the ticket (such as print specifications, type of paper, and other special requirements), and avoid quality accidents caused by failure to follow the work ticket requirements.
(2) Adhere to the "three times" operation. The so-called Sanqin is in the printing process, the ink in the ink fountain, diligently look at the layout of the surface water, and the sampling control sample.
(3) Strengthen the custody of semi-finished products. The requirements for the storage of semi-finished products are that they can meet the requirements for overprinting on the under color or the backside printing, and avoid the defects such as paper deformation, imprinting, imprinting, and stain on the back due to poor storage. At the same time, in order to ensure the quality of semi-finished products, the following points must be made:
1 Piles of paper are stacked neatly. If they are stacked together, they will cause a large amount of paper edges to be exposed in the air, which will easily cause deformation due to changes in humidity. In addition, paper edges may be damaged or folded due to uneven paper edges during stacking. Phenomenon, these conditions will affect the progress of the next process, there is no benefit to the print quality.
2 Because the paper around the paper stack and on the surface is exposed to the air, it is easy to deform in size. Therefore, in the stacking process, about 20 waste sheets should be placed on the pile of paper to protect the surface of the printed matter. In addition, if piled up for a long time, it is necessary to put the paper stack with kraft paper or plastic film.
3 stack height of paper stack. It should be decided according to the specific circumstances, generally there are no large solid prints, piles of paper can be stacked properly higher, for large areas or high surface smoothness of the paper, should reduce the stacking height, if encountered When printing ink with a large amount of ink (especially when printing on coated paper or white card), you should consider hanging the shelves. Doing so is conducive to the drying of the ink, while avoiding the back of the dirt.
4 When encountering a very large amount of ink, the paper stack should be loosened at intervals when piled. Auxiliary drying.
The factors that can influence the printing quality in the printing process are actually not only the above-mentioned factors, but in the actual printing, there are many or such factors that may cause the printing quality to appear in one way or another. Therefore, we need to print in our work. We carefully discovered and dealt with. In addition, the standardization and standardization of management and operation should be advocated in the work, records should be made of the changes in the work, and experience should be worked out in order to facilitate data management and to achieve stable print quality.
