Correct blade angle adjustment, so as to achieve the best printing effect
In gravure printing blade angle of 55 - 65 degrees. A flat angle will produce larger contact area, resulting in paste version and tailing. While the angle is too steep, it is easy to produce a knife.
Two. Installation of scraper:
Rigid tool: X = 3mm, can effectively solve the ink scraping phenomenon.
Neutral with a knife: X = 4mm, the standard installation knife.
Soft knife: X = 5mm, is conducive to the network transfer and coarse grain printing (for example: white ink)
Scraper must be installed straight without twists and turns.
Three. Blade pressure:
The pressure of the scraper should be as light as possible.
The blade is thin, the smaller the pressure is. The scraper is required to have a certain toughness to compensate for the deviation of the radial pulsation or diameter of the roller. Too much pressure increases the contact area and the friction force of the roller blade and version of the, can lead to bent blade, serious edge will break and "the wire" phenomenon.
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