What is the reason for the discoloration of the surface printed part of the 【Gift Box】?

In this era of packaging, it is normal to pack goods, but they must be packed in gift boxes, so as to show a person's taste and the value of goods, but due to the long-term storage of gift boxes , the surface printing part will be discolored, what is the reason for this. Please see the explanation below.

It is understood that there are two reasons for the discoloration of the printed part of the surface of the gift box that has not been used for a long time: oxidation reaction and air temperature. Air temperature: The ultraviolet rays of the sun will damage the printed materials, and the color of the inkjet prints will become lighter if they are exposed to the sun for a long time, so the preservation method is not to be directly exposed to the sun. For the oxidation reaction, the components of the printing ink, there are many desiccants, agents and other auxiliary agents in the ink, and they will not be oxidized after drying. It is determined according to the object of printing, that is, the substrate, the printing method, the type of printing plate and the drying method. Therefore, the surface printing part of the gift box will change color, one of the reasons is that the printing ink is not up to the standard.

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