Handling Of Broken Labels - Caused By Tightening, Etc

If the finished product label is rewinded too tightly, it will cause the adhesive in the adhesive to be squeezed out, resulting in glue leakage. The leaked glue will stick to the back of the backing paper, making it difficult for the entire label to loosen. This situation is particularly evident in summer. If the label is narrow, the tensile strength of the backing paper per unit area will not be too large. The automatic labeling machine has a certain tension during the labeling process. When a roll of labels with adhesive leakage phenomenon is used for automatic labeling, it is likely that the label strip will be broken due to the tension of the labeling machine and the tension from the inside of the roll during the labeling process. The label breakage caused by this situation is due to tensile tension, so the bottom paper breaks irregularly, but the fracture surface is relatively uniform.
Poor die-cutting
The quality of die-cutting also has a significant impact on whether it is easy to break the tape during automatic labeling. If the die-cutting pressure is too high, it will cause the bottom paper to be cut through, resulting in a decrease in the tensile strength of the bottom paper and causing the label to break. The broken surface of the bottom paper of the label strip caused by poor die-cutting is relatively uniform, and the crack is located on the die-cutting line.
Destroyed
If the release layer (usually the silicon oil layer) of the backing paper is damaged, it can also cause the label to break. The labeling tape caused by this situation is broken, and the fracture surface of the backing paper is serrated. The reason for the damage of the release layer is due to defects in the production and coating of raw materials, and improper handling during the inspection and marking process in the printing factory may also cause scratches on the release layer.