Main Factors for Paper Printability

We can always find beautifully printed paper boxes and bags here and there. We get gold stamping jewelry boxes when we buy jewelries, we get a simple printed kraft paper box for gift packaging, and we can find printed carton boxes unloaded from the trucks when the logistics guys are working.

There are many kinds of paper materials for paper packaging box and paper packaging bags to choose from. But how to choose the suitable paper material for different printing requirements is a topic that needs to be discussed beforehand. And the printability of the paper materials should be carefully observed. In specific, physical properties of the printing materials like surface strength, ink absorbency, surface smoothness, whiteness, and transparency are all quite important to be considered for printing.

Higher surface strength is preferred in printing. Related to density of the paper fiber and the other elements that form the paper material, the surface strength influences the printing quality in a way that if it is weak, paper shedding, deinking, or even white spots could happen; if it is strong, the quality of printing image could be assured.

Ink absorbency affects the drying process of ink and the color effect. The surface roughness and the space among surface fibers are two major factors that influence the ink absorbency. With large space and rough surface, the paper materials could be printed through, which is not good to color saturation or brightness. With small space and uneven surface, the ink may not be smoothly transferred to the paper materials. Therefore, if a high printing standard is required, the ink absorbency of the paper materials should be highly considered.

The surface smoothness of the paper materials could be a major factor during transferring the original design draft to actual perfection. High surface smoothness helps to improve the resolution ratio and control the distortion degree of the paper materials, which means it is quite important in terms of the exquisite degree of the paper packaging products. The state of paper fibers decides the paper smoothness, ink transfer quantity and transferring speed, eventually influencing the printing quality.

To have an excellent printing effect, paper packaging box and paper bag manufacturers are obliged to offer professional advise before their customers make decisions.