Rosario UV printing technology

UV ink technology is developing rapidly now.

However this technology is not suitable for all applications in the glass industry. It is important to understand that the UV inks can be used only for one way bottles and some tableware.

Since the mechanical resistance of the UV inks is lower compared to ceramic inks, contact points between bottles, for instance during filling or transport, should preferably not be screen printed. Additionally, the chemical resistance of UV inks is higher compared to ceramic inks and will therefore suffer less deterioration during some of the more severe washing processes. Almost all glass bottles coming off the production line in a glass factory are cold-end coated with Polyethylene which unfortunately prevents adequate bonding with applied UV inks.

In close cooperation with Color2Color bv and various ink suppliers Rosario has developed a Total UV Technology,  which is available for the customers of Rosario Productie bv, preferably in combination with the Rosario equipment. The technology has been developed to print on Polyethylene coated glass, allowing an adequate bonding. Color2Color bv has already supplied millions of UV printed bottles to satisfied customers.

UV inks remain wet after printing and therefore a UV lamp must be mounted directly after each print station to dry and cure the inks. The high speed 4 station PLS printers of Rosario can be equipped with 2 UV lamps in order to print 2 colours on body and neck of the bottle.The slower Rosario Decormec machine can be equipped with 4 UV lamps, so 4 colours can be printed.

All machines can be equipped with specially designed fully automatic UV ink dispensing systems. Machines stops to fill the screens are no longer required.