Special ink for inkjet printer

Abstract

The invention discloses special ink for inkjet printer. The ink is prepared from the following raw materials in percent by mass: 4-8% of chlorinated polypropylene, 4-6% of rosin resin, 50-65% of butanone, 15-23% of methylbenzene, 5-10% of solvent dye, 0.5-2% of dimethyl diallyl ammonium chloride and 0.2-0.5% of paraffin. In the ink, the chlorinated polypropylene is selected as matrix resin, the chlorinated polypropylene has relatively good wettability on a PE substrate, and the ink prepared from the chlorinated polypropylene has relatively low viscosity; however, the ink prepared from the chlorinated polypropylene is not very strong in adhesion to the PE, so that the rosin resin is further selected for compounding, and thus high-adhesion ink with good adhesion and satisfactory viscosity can be obtained; the butanone and the methylbenzene are selected as a mixed solvent, and the chlorinated polypropylene and the rosin resin can be dissolved therein relatively well, so that the viscosity of the ink is reduced.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to special inks for inkjet printers. Background technique [0002] With the increasing attention to safety issues, the existing laws stipulate that the labels of food, medicine, cosmetics and other products must be marked with instructions to protect consumers' rights and interests such as production date, batch number, and shelf life. Because of its excellent properties such as clear writing, stable performance, and scrub resistance, it is widely used in label instructions. However, the existing inkjet inks still have poor adhesion on PVC, PE and other substrates, and the substrates need to be pretreated separately during use, such as corona, polarization and other treatment measures. Surface energy to achieve good adhesion. In addition, in view of the enhancement of environmental protection awareness, especially in the packaging of food, medicine, cosmetics and other fields, new c...

AI Technical Summary

Problems solved by technology

However, the existing inkjet inks still have poor adhesion on PVC, PE and other substrates, and the substrates need to be pretreated separately during use, such as corona, polarization and other treatment measures. Surface energy for good adhesion

In addition, in view of the enhancement of environmental protection awareness, especially in the packaging of food, medicine, cosmetics and other fields, new challenges have also been proposed to the environmental performance of inkjet inks.