ink is not easy to develop the history of the conjunctiva, prone to rub dirty failure. In order to improve printability, in addition to the rational use of light quick-drying ink, but also pay attention to controlling the printing environment temperature and printing speed. (2) bronzing. Bronzing process in sticker printing has been widely used, but to get a good print results, attention should be concerned with gilt printability problems. If the printer is not set drying device, regardless of stamping process after the first printing, or the use of gold foil after the first printing process, are due to the effect of foil stamping ink layer in contact with at the impact of the decline in printing quality. Thus the ink, the printing press should be set in general drying means, and control the ambient temperature and the printing speed. If you use quick-drying ink, you can print directly on the surface of gold foil after printing. If using a photosensitive ink, since the printing ink before stamping is fully cured, so it will not affect the stamping quality. (3) coating. Printing high-grade detergent packaging label products are often carried out after printing coating process, a transparent plastic film that is attached to the cover by pressing the printed surface, protect and increase the role of gloss. For the latter film products are generally not stamping process, because without the polar surface coating treatment, if bronzing printing and packaging the city, easy foil pasted on the surface of the film.

                         A4 paper in the sales process, the often appear a4 paper quality of the accident, if not yet open cut a4 paper printing, it is not difficult to deal with, the worst result is to return a4 paper sales company, we each bear half of the freight or by party commitment. Returned to the a4 paper mill dealers can negotiate a claim, or simply sell discount. Now users are mostly price-value, some minor problems but much cheaper price, there are a lot of people willing to buy, of course, worry not sell substandard products. However, once it has been printed, relatively big trouble. Now do the paper profits, one ton of paper that is a few hundred dollars of profits, printing easily four or five tons of paper to open India, a problem faced with the loss of thousands of dollars, and no one could easily assume this responsibility, a lot of disputes also resulting. So, when the two sides traded a4 paper, must have considerable ability to judge, to judge from the appearance, the good feed this off. Especially those who are no printing presses, paper contract to buy a printing press of other business units, because of the situation can not keep control of printing, but also want to buy a4 paper, a careful visual inspection. Different a4 paper, its performance, the use is very different, the appearance requirements also vary. And a different machine

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