PVC plastic box PET plastic box printing, mainly screen printing and UV offset printing. Screen printing is direct printing, UV offset printing is direct UV light printing, although both have their own advantages and complement each other, but UV offset printing. It is more independent than silk screen printing, the effect is better, the quality is higher, the production efficiency is higher, the color reproduction is more realistic, and the problem of inaccurate nesting is not caused when the spot color is printed. However, the capital investment in the early stage of the machinery and equipment is large. Shenzhen plastic box manufacturers in the direction.
Pressure problems: Plastic box printing pressure has a great influence on the quality of printed plastic boxes. Maintaining an even and constant printing pressure in the effective printing area can not only make the prints uniform in ink color but also have a small color difference, and can also make the print size stable. Flat presses can achieve maximum printing pressure. However, due to the problem of flatness of the printing plate produced by the manufacturing precision and the thickness of the adhesive substrate cannot be completely uniform, the pressure is uneven and the printing quality is affected. One way to solve the pressure unevenness is to make a pad, where the pressure is low, put the bottom of the worktable where it is cushioned; one is to properly reduce the hardness of the flexible plate. However, reducing the hardness of the flexographic plate is limited. If the flexural hardness is too low, the geometrical dimensions of the image will expand outwards, making the small font easily blurred. When printing large areas, the problem of printing pressure is not easy to solve. For this, we use the method used in bronzing, that is, padding on the workbench with a layer of 175 lines and a silicone plate with a hardness of 90°. This can solve the problems of exhaust and partial pressure.
Shenzhen Xin Hong Yang Packing Co., Ltd., engaged in plastic box customization. Plastic box manufacturer which is better? To find plastic box custom manufacturers, choose Shenzhen Xin Hong Yang Packing Co., Ltd., high-quality transparent plastic box, large output, fast delivery, rapid delivery, quality assurance. Phone: +8613554903780 Fax: +86-755-85207250 E-mail: sales@xhypackaging.com Website: http://www.packaging-box-suppliers.com/