Manufacture of aerosol containers

In a production line for aerosol containers whose exterior surface is printed with inks in a predetermined pattern to form a desired design including both imagery and graphics, the production line incorporating a dry offset printing process which includes an inking station and a varnish application station through which aerosol containers successively pass, inks being applied to an aerosol container at the inking station and a varnish applied to the inked exterior of the container at the varnish station, the improvement comprising:

• a LED light module installed between the stations and emitting a light within a predetermined range of frequencies onto the inked container, the temperature associated with the LED light transmissions being at a cooler temperature than temperatures associated with Uv light sources employed in other, non-dry offset printing processes that could be used for the same purpose whereby the exterior surface of the finished container exhibits no visible lap lines or discolorations and has improved scratch resistance, lap lines and discolorations occurring when Uv light sources utilized in non-dry offset printing processes and operating at a higher temperature than that of the LED light module, such usage thereby causing printed aerosol containers to be rejected.