Sometimes, in order to reduce the sticking problem on the back of the printed matter, operators increase the amount of powder spraying. This will affect the gloss of the self-adhesive label printed matter, pollute the working environment, and also increase the number of delivery parts. The dirt will cause serious wear and tear, which will have a negative impact on the printed matter and the machine. ?

The principle of controlling the amount of powder sprayed is to ensure that the upper and lower printed sheets are just not sticky in the effective printing area. At this time, the amount of powder used is the optimal amount. The main reason is that the ink on the surface of the printed product is not completely dry. If the ink has dried, there is no point in powder spraying. When the printing master inspects the printed sheets, it is essential to check the amount of powder sprayed. Most of this work uses visual inspection. When it is found that the powder spray is uneven or the amount is small, adjustments must be made in time. If used improperly or for other reasons, the powder spraying device may sometimes experience problems such as poor powder discharge or even blockage. Good daily maintenance and correct use can avoid or reduce clogging of the powder spraying device. It is recommended that you try it out for a short period of time before deciding whether to use a certain material. ?