Glass manufacturing, clothing manufacturing, textile factories, keyboard manufacturers, toy factories, food packaging processing plants, etc., are all inseparable from screen printing. Many problems are often encountered during the screen printing process. Often, the quality of printed products is not good! What's going on?
The most scientific investigation shows that the possible reasons are the following:
1.The color is dim and not bright; the reasons may be the poor quality of the original, the poor design of the plate making curve, the low density of the separation plates, the lightness of the printing process, the insufficient printing pressure, the aging of the printing machine, the excessive fountain solution, Rough paper, low whiteness, etc.
2, color cast: the reasons may be poor quality of the original, inaccurate plate making, inconsistent control of printing conditions, ink color control step is good, see the sample light source is not standard, etc.
3, the text is watery: the reasons may be low density of the positive picture, large film haze, too light printing, improper print, insufficient printing pressure, aging of the printing press, excessive fountain solution, insufficient ink, etc.
4. Dirty plate: The blank part is inked due to the poor wetting of the printing plate.
5. Dot increase: The area of the dots on the substrate is larger than that of the corresponding part on the printing plate.
6. Ink stacking: Ink or other substances are deposited on the ink roller or blanket to form a relief-like deposit, which affects the transfer of ink and print.
7. Brushing: During the printing process, paper fibers, fillers, or coatings may fall off or be pulled away from the paper surface due to ink being too sticky or paper surface strength differences.
The above are the problems that often occur in any industry. Xiaobian warmly reminds everyone not to forget the most important question: Maybe none of the above is the most fundamental reason, we need to ask the root questions carefully. If we are not using a good quality screen printing mesh. Then many of these problems will arise. Instead, if you use a screen like the regular manufacturer maishi Group. Many problems can be avoided. Interested friends may wish to consult.
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