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In the course of custom printed jewelry bags, due to the slow penetration rate of solvents, some defective products may be produced, especially in the process of customizing some simple packaging boxes. In order to save costs, many packaging box manufacturers use some unqualified solvents Ink solvents, but why do we add solvents to the ink? We know that the current ink will use a resin. Does this solvent have a series of chemical effects on the resin? How does his efficiency affect custom printed jewelry bags?
However, on the contrary, the speed of solvent penetration is very compact and efficient, and the polymerization of the resin is still the same. Therefore, the requirement for very high smoothness of custom printed jewelry bags is very demanding. In this case, the ink layer becomes very dark after it becomes hard. Dumb, not as bright as before. |
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