The surface of printed matter is sticky and dry-questions-Guangzhou Henghu Trading Co., Ltd

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The surface of printed matter is sticky and dry

Number of visits：3640 date：2021-12-26 23:26:06

Abstract：

Poor drying effect

Main reasons: UV power is not enough; UV lamp aging, strength weakening; Improper selection of UV varnish initiator; Alcohol, toluene and other solvents added too much; Machine paper speed is too fast; Poor light solid performance of UV curable varnish

Solution: timely maintenance of equipment and replacement of lamp; Adding a certain amount of photoinitiator and photosensitizer, such as ternary amine, to speed up the light solid speed; Adjust printing process.

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The surface of printed matter is sticky and dry

Abstract：