Process and printing apparatus for ink jet printing on cloth using ultraviolet ray curable ink
The present invention aims to provide a process for ink jet printing on cloth, in which the pre-treatment step can be omitted and by which printed matter having excellent design, wherein the image is unblurred and has high optical density, can be obtained. Specifically, the present invention relates to a process for ink jet printing on cloth using ultraviolet ray curable ink, which includes the steps of applying a transparent ultraviolet ray curable ink and then curing by ultraviolet rays, and thereafter applying a ultraviolet ray curable ink containing a coloring component to form an image.
1. A process for ink jet printing on a cloth using ultraviolet ray curable ink, which comprises the steps of
forming a three-dimensional pattern on the cloth by repeating the step of applying a transparent ultraviolet ray curable ink and then curing by ultraviolet rays; and
applying an ultraviolet ray curable ink containing a coloring component on the three-dimensional pattern to form a three-dimensional image,
wherein said transparent ultraviolet ray curable ink and said ultraviolet ray curable ink containing a coloring component comprises a reactive oligomer, a reactive diluent and a photoinitiator;
said reactive oligomer being contained in an amount of 1 to 70% by weight in said transparent ultraviolet ray curable ink and in an amount of 1 to 60% by weight in said ultraviolet ray curable ink containing a coloring component.
2. The process for ink jet printing of claim 1 , wherein said transparent ultraviolet ray curable ink and said ultraviolet ray curable ink containing a coloring component are heated by a heating means and then discharged.