Analysis and Dismissal of the Causes of Hot Stamping

When printing gold letters on coated paper inks in real time, the gold characters are not stamped at all temperatures, and there are missing strokes; However, the reverse effect of coated paper is very good.

Careful observation of the background color is characterized by the fact that the ink layer is not thick and the ink film surface is glossy. According to investigations, offset printing materials such as de-adhesives containing wax substances are frequently added to the ink in order to overcome certain process failures.

Take the following measures: For the amount of background color containing waxes, use five layers of gauze wrapped rosin powder in the hot stamping area to wipe; more to dilute ink plus 3% binder and 3% white dry oil cover once , and then hot stamping of aluminum effect is very good.