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Why Do Offset Printing Blots Dry Slowly?

Jun. 29, 2016

Offset printing Ink blots are transferred onto paper from the plate through the blanket, general requirements within 4h to dry, to facilitate the next printed or finished product testing. The factors of blot dry has three kinds, they are oxidation conjunctiva, the paper absorbs and water evaporation.

The reason of blots not dry are more, such as the paper is acidic, version has many ink or water, resulting in ink emulsification, workshop low temperature, high relative humidity, poor paper absorbability, or dry oil amount is too small and so on.

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