The different types of paper bag is main material printing essential, have a more direct impact on the printing work, in order to effectively guarantee the quality of printing, the printing process in the handbag has certain requirements for the paper, has good adaptability for printing, printing quality can be guaranteed only. Next we look at a handbag printing, what are the requirements of paper?.
Smoothness of paper
The main performance is printing paper smoothness, printing effect is more clear and smooth, smooth and low paper easily lead to appear virtual graphic printing effect, influence of handbags appearance and printing quality.
Moisture content of paper
Paper water content is more, reduce the intensity of paper, affect the speed of imprinting drying. Paper water content less, leading to brittle paper, easily damaged, while prone to static conditions.
Ink absorbency of paper
The more the absorption of ink on paper, the stronger the ink absorption, and the weaker the ink absorption. In the bag printing process requires moderate paper ink absorption, ink absorption is too strong, resulting in "paste blind print" phenomenon, less ink absorption, resulting in imprinting is not clear.
The requirements of paper is more important for the bag printing work, so the staff will try to ensure the smoothness of printed bag paper with high moisture content, and ink absorption is moderate, the printing effect of quality guarantee.
Bag printing work requires polishing processing on its appearance quality, in order to make it get more reliable protection, the quality requirements in the process of polishing the opponent bag and technical requirements are needed to fully meet the. Below we will come to understand the quality and technical requirements of a handbag printing and glazing.
Quality requirements for printing and polishing of handbags
1, printing ink must have solvent resistance and heat resistance, after glazing can not appear discoloration, wrinkle and so on.
2, in the performance of paper, mainly in the smoothness of the paper, paper smoothness, polishing effect is good, rough words, the effect is poor.
3 if the print placed for a long time, easily lead to the surface of the paper on the mimeograph or do not go "face" pits "etc..
Two. Handbag printing technical requirements for polishing oil
1, the film has good resistance to environmental erosion;
2 good flexibility and flexibility;
3 able to form good adhesive force on the surface of printed matter;
4, after printing, the handbag has a wide range of processing adaptability;
5, the film has a high degree of transparency, will not change color;