In the process of printing PVC boxes, the ink color after drying is lighter than the one just been printed. Because the ink on the surface of Clear pvc box penetrates and oxidizes the conjunctiva during the drying process.
In reality, all the printed PET plastic box will fade and change to varying degrees after exposure to the light. The light ink fades and discolors severely after long-term exposure to light. Actually, we should choose the ink with good light resistance for the PET plastic boxes. At the same time, the consistency of the light resistance between several inks should be considered when the ink is mixed.
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