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Mineral water label: can make the method of less dirty spots in label printing
time:
2020/10/10
Source:
Nowadays, in some label printing production processes, small pollutants in the air can also cause waste, so printing plants are also a headache. How to solve it? Let us introduce this aspect in detail below.
Label printing materials are very sensitive to electrostatic buildup. The accumulated static electricity acts like a magnet, attracting contaminants around the surface of the raw material. These contaminants can come from packaging, clothing fibers, hair, swarf, ink stains, metal dust, etc., and they can cause printing problems.

There are two main reasons why pollutants in the air cause waste in flexographic printing plants:
◆ Contaminant transfer from substrate to impression cylinder
This condition causes image errors in the printed product. The usual method is to close and clean all impression cylinders. The cleaning process usually requires 1-2 hours of downtime, resulting in a waste of 100 meters.

◆ Contaminants are transferred directly from the substrate to the plate roll
This creates solid particles on the plate roller. This situation will be exacerbated if the UV ink is very thin and sticky. A small amount of dust will stick to the plate and cause repeatable errors. The operator should use a soft brush or rag to clean the plate during the operation. First, this method is not safe. In addition, if it cannot be cleared, the operator must stop the machine, clean all the plate rollers, re-register the machine, and then check the print quality again. This process will produce 50 meters of waste, wasting production time, and more importantly, the problem has not been fundamentally solved.
Therefore, how to reduce the dirty spots in label printing also becomes the key. The above content is more clear. I hope everyone can understand better through the above knowledge.
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