Self-adhesive label material is a kind of self-adhesive material, and hot-melt adhesive is selected as its adhesive. Die cutting hot-melt self-adhesive materials is relatively difficult, and the problem of label missing often occurs. This article will discuss how to solve the label missing when label die cutting.
(1) When the temperature continues to decrease, the peeling force of the self-adhesive material decreases, which will lead to a decrease in the bonding force between the label and the backing paper, resulting in label drop.
Solution: Preheating the self-adhesive material before die cutting or add on-line heating to the rotary label die cutting machine
can increase the viscosity of the adhesive, accelerate the release force of the self-adhesive material and increase the binding force of the label.
(2) When the release force of the self-adhesive material is too low, and the winding route of the die-cutting machine is long, the self-adhesive material will be repeatedly deformed on the paper guide roller, and the label will eventually fall off.
Solution: Shorten the distance of waste discharge on the die-cutting machine as much as possible to prevent the labels from loosening on the backing paper, so that the labels after die cutting can be rolled up as soon as possible.
Located in Ruian, we, Raloyal, specializes in label slitting, die cutting and printing machine manufacturing. As one of the leading China die cutting machine suppliers
, we take pride in our highly professional team. With our dedicated team, we are committed to providing guidance and support throughout the process, ensuring that you receive the ideal machine solution for your specific needs.