How can I make ink printing to keep brightness on the product?
The most direct way is to glaze.Or use glossy ink, paper that is slippery in texture
Printing will also affect the brightness of the product, as well as light oil! Like you ink in the product is dried after the intense darkness without light phenomenon is generally the problem of printing substrate!
I have encountered this problem before. Later, the varnish was printed again on the printed flower. The effect is ok. Just don't know what you want. Second, you can also choose light type varnish. Can increase the brightness effect.