The Hardness Of The Anilox Roll

The hardness of the chrome-plated anilox roll with a plating thickness of 0.01-0.15mm is about Hv900, and the coating thickness of the chromium oxide ceramic anilox roll is between 0.1-0.5 (excluding the thickness of the bonding coating), and its hardness is Hv1300-1400 The difference in hardness reveals that the anilox roller with higher hardness has more advantages in wear resistance. After data collection, the service life of the latter is 4-5 times longer than that of the former.

The coaxiality of the chrome-plated anilox roller is about 0.05 mm, and the data of the chromium oxide ceramic anilox roller is not greater than 0.03 mm. Although the difference is not big from the data, if it is enlarged to 50 mm in diameter and 1700 mm in length On the anilox roll, there is still a big difference in mechanical runout. Mechanical jitter will cause ink rejection or uneven ink layer during printing.

The maximum mechanically engraved chrome-plated anilox roller is 500L/in., and the laser-engraved chromium oxide ceramic anilox roller is up to 1500L/in. The high number of screen lines can form a thinner and more uniform ink film, which can reduce the expansion of ink dots during high-speed printing, and obtain faster drying speed, more accurate overprinting and less ink consumption to ensure printing quality.