The Latest Technologies of Laser Engraved Ceramic Roll

Abstract

Laser Engraved Ceramic(LEC)roll is becoming more and more popular than before. Here, I would like to introduce the latest technologies about LEC roll. YAG laser is used more than 500 lines per inch(LPI). The latest YAG laser can engrave about 2500 LPI. High quality Flexo printing like 150 LPI plate screen with 1% dot and 2% dot needs about 1500LPI screen anilox roller. It can be not engraved by CO₂ laser. Multi-hits engraving has the better character of transferring ink compared with single-hit engraving because the cell of multi-hits engraving has the smoother surface. ART is the abbreviation of "Anilox Reverse Technologies". Compared with normal hexagon cell, the "cell" is connecting with next cell each other and as the result, the character of ink transfer is quite excellent. And it is easy to get more cell volume compared with cell type engraving. There is not only LEC roll also doctor blade for technology advance. BTG doctor blade is exclusive to LEC roll not for hard chrome engraved roll, which edge is coated by ceramic. Normally it can be used more than five times as normal steel doctor blade. Customers will be freer from exchanging doctor blade than before. Finally, the sleeve technology gives also very easy operation for users. Sleeve anilox roller is quite lighter than steel base anilox roller and connecting to reduce "down time".