Usually To prinit paper bags there are two ways: one is pantone color printing and another
is 4c pritning.
Difficult printing have different effect.For pantone printing, the ink color
brightness is low but saturation is high. So the effect of prining is even and solid
For 4c pritning, the ink color brightness is high and saturation is low.
So the effect of printing is light but lack of solid ink dull feeling.