📢 Many printers printing will encounter self-adhesive PET material printing ink layer firmness is not good, resulting in printing results lower than expected, and cost, if you also have such a distress then today together to understand the enhancement of self-adhesive PET material printing ink layer firmness of the method of it!
Self-adhesive PET material is commonly used in the labeling industry printing material, with the material firm, high density, high temperature resistance, corrosion resistance and other advantages, widely used in the electronic and electrical industries.
📞 Self-adhesive PET variety, can be divided into transparent, white, metallic color, brushed metal and other types; according to the surface gloss, can be divided into glossy and matte type. Generally speaking, PET self-adhesive materials can be printed by various printing methods.
🌞 Due to the low surface capacity of self-adhesive PET , it has poor wetting ability to ordinary ink and poor ink layer firmness. Therefore, regardless of the printing method, must be in advance of the PET self-adhesive material surface treatment, such as corona treatment to improve the surface energy of PET self-adhesive material, but also through the surface coating treatment to change the physical properties of the surface of PET self-adhesive material.
🔔 It should be noted that: after treatment with ordinary corona method, the ink layer on the surface of PET self-adhesive materials is not stable, because PET self-adhesive material density is high, ordinary corona method is difficult to increase its surface energy.
Some professional label printing enterprises commonly used with coated PET self-adhesive material production of electronic labels, coating changes the PET self-adhesive material surface wetting characteristics, and stable performance, ink layer firmness can be effectively improved.
Nowadays PET self-adhesive materials used in the coating is mainly solvent-based and water emulsion type. Among them, solvent-based coatings have the advantages of good leveling, good alcohol resistance, and can adapt to a variety of inks. The disadvantage is that the pollution is large, the risk factor is large, not conducive to environmental protection.
Water emulsion coatings are low cost and good environmental protection. But the alcohol resistance is poor, and there are certain requirements for ink types. Of course, due to changes in coating thickness, coating formula and stability, as well as changes in the PET substrate itself can also lead to the problem of poor ink layer firmness of PET self-adhesive materials with coatings.
💲 Therefore, you want to improve the PET self-adhesive material printing ink layer firmness can be used with coated PET self-adhesive material, according to the needs of the most appropriate type of coating to produce production!
Welcome to share more scheme during your printing work with Sinopack .