This machine can print 3 rows of letters or number maximumly by using thermal printing coloured ribbon. This DY-8 thermal ribbon coding machine which uses thermal printing ribbon instead of ink printing. Can be used on a variety of plastic films, laminated plastic films and plastic, paper and other flexible packaging bags. Features : Using thermal printing ribbon to avoid oil contamination. No drying time like oil printing machine, more clear and clean. Easy to load and unload different die of letters. Can be printed on PT, PE, KT, OPP, COP heat shrinkable label, aluminium foil, bags, paper and various plastic composite films and other materials. Advanced design of structure, high quality and easy to maintain.