Coding hot foil

Ink is also an important factor in the quality of coding hot foil. Good ink particles are very small, will not block pinholes, has good fluidity, uniform pH value, strong adsorption and good moisture retention during inking, durable printing, and slow color transition during printing. Good ink is organic, non-toxic, will not corrode, has no peculiar smell, does not stick after dyeing, and is easy to dry. Bad ink particles are large, sticky and sticky. After dyeing the tape, it will not dry. The tape produced will stick badly. It is easy to block the pinhole during printing, so that the needle can not stretch flexibly, so it will interrupt the needle. Its judgment method is that when the ribbon with high-quality ink is touched by hand, there will be no obvious ink marks on the fingers. There is no obvious difference between before and after printing. The inferior ink feels greasy when touched by hand, and the fingers are full of ink traces. It seems that the ink is sufficient, but the color will be heavy when printing, that is to say, the printing paper will be blurred when touched by hand. Poor quality ink will not only cause poor printing effect, but also enter the needle seam of the print head along the guide hole of the print needle and solidify, blocking the print needle, resulting in the failure of the printer to print normally. In serious cases, it may also increase the needle output resistance of the print head, break the print needle, and crush the parallel groove of the print needle Serious faults such as burning out of print head drive chip or coding hot foil motor.