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Reasons affecting the quality of carton mechanical equipment printing products

Release time:

2020-05-08 11:59

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This is the reason that affects the quality of printing products of carton machinery and equipment, but you didn't find it?
The root cause of this problem may not be the equipment, but you have neglected the internal cleaning of the mechanical equipment of the carton. In addition, due to ink problems, there will also be signs of poor printing
1、 Poor hue (unable to draw scale hue)
Reasons: Ink viscosity is too low, ink separation, sedimentation, low ink amount, poor ink transfer
Handling method: participate in the original ink, continuously stir the ink bucket, increase the amount of ink, check the roller and printing plate
2、 Poor viscosity (unable to reach the set viscosity)
Causes: ink shake, foam generation, solvent volatilization, excessive water dilution
Solution: measure after ink circulation, add defoamer, add special solvent, add raw ink and thickener
3、 Poor drying of printed matter (drying too slow)
Cause: Ink viscosity is too high, ink piling, ink drying is poor, ink absorption is poor, paper splashing
Solution: dilute the ink, adjust the plate pressure and the height difference of the plate, add quick-drying agent, and replace with paper with good ink absorption
4、 Heap ink
Reasons: uneven printing plate thickness, excessive plate pressure, high ink viscosity, and excessive ink amount
Solution: correct the height difference of the layout, lower the plate pressure, add thinner, and reduce the ink amount
5、 Produce burr
Reasons: the ink viscosity is too high, the drying rate of the ink is too fast, the plate pressure is too high, and the paper powder is mixed
Solution: reduce ink viscosity, add slow drying agent, adjust drying speed, reduce plate pressure, and filter ink with filter screen

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