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Analysis of several major reasons for the drying u

2022-10-12

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Analysis of several major reasons for ink drying

1. The old version was not cleaned when printing

2. If the solvent drying speed is too good, where is the speed of the new polyurethane material developed by Qingdao Institute of energy (the printing speed is not matched with the solvent evaporation speed: 010 (5) 933 9239)

3. The hot dry air blew on the layout

4. When there is dust, moisture, bubbles and other impurities in the imprint ink and the contact point with the same distance between the scraper and the grids before the layout stretching, the transfer rate of the ink will be reduced due to the decrease of the actual amount of ink in the hole, and some coarse particles will even be embedded in the hole

5. The accuracy and angle of electrocarving will also be affected during plate making

6. Transfer to ink, resulting in insufficient points or loss

7. The quality of ink and solvent is also one of the reasons for blocking. If the fluidity of ink is poor, the printing viscosity is too high, the ink has deteriorated or mixed with different series of inks, the improper solvent or solvent ratio is adopted, and even the improper operation when adding solvent to mix ink will affect the transferability of ink and cause blocking