According to our many experimental analysis, the content of the printed plastic woven bag is not strong mainly as follows: the color of the printing ink layer; The printing ink is not uniform, the depth is different; The printing content of the front bag is glued to the back bag, and the printing layout is changed into flowers. Mainly due to the following reasons:
1. Improper setting of machine equipment and aging of machine etc. Printing roll adjustment too tight or too loose will directly affect the depth of the color of the page content. The work efficiency of the obsolete and aging machine is slow and cannot meet the requirements of printing and weaving bags.
2, the choice of ink itself is different, generally water-based ink and oil-based ink. Water-based ink ink type is stable, bright color, soluble in water, does not affect human health, belongs to environmental protection ink, printed out woven bag color stability, quality assurance. Oil-based ink is cheap, insoluble in water, and the ink type is relatively unstable.
3, the difference between the temperature and humidity of the printing workshop is too large, the temperature is too high, resulting in the ink drying of the printing plastic woven bag, and the content cannot be printed up; The temperature is too low, the ink is not dry, paste each other, and the layout becomes flower.
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