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Shanghai Chenjie Printing Material Co., LTD
HomeNewsThe cause of printing dot loss or defect ?

The cause of printing dot loss or defect ?

2020-05-14

Generally, the causes of the failure are:

  1. Ink viscosity is too high;
  2. Is ink film drying too fast;
  3. Is the ink has particles;
  4. Ink flow is too poor;
  5. Is insufficient printing pressure;
  6. Is the Printing Plate sleeve circumference uneven, not smooth and so on.


Treatment methods:

  • First, ink viscosity should be adjusted between 25~30 S/25℃· coating 4 cups;
  • Second, ink in printing to add slow dry diluent;
  • Third, to prevent ink premature drying in the Printing plate hole (add wetting aids);
  • Fourth, add 1%~3% flattening (e.g. ether) or adjust printing pressure, so that its substrate tension control at 0.05;
  • Fifth, change or polish printing plate surface.

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Shanghai Chenjie Printing Material Co., LTD
Business Type:Manufacturer , Trade Company
Product Range:Admixture&Additives , Printing Materials
Products/Service:Fountian solution , Alcohol-free fountian solution , Roller wash , Plate cleaner , Spray powder , Printing plate
Certificate:GS
Company Address:Room 918, 199 jiangkai road,minhang district, Shanghai, Shanghai, China

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