Reasons for the labeling machine to break the label

1.Tightness: If the finished label is rewound too tightly, the adhesive in the self-adhesive will be squeezed out and lead to seepage. This is especially true in summer. If the label is relatively narrow, the tensile strength of the bottom paper per unit area will not be too large. The labeling machine is under tension during the labeling process. When a roll of labels with bleeding phenomenon is used for automatic labeling, it is very likely that the backing paper that has been removed from the label will be pulled off under the action of the tension of the labeling machine and the tension from the inside of the roll body during the labeling process. Causes the label to break. The labeling tape caused by this situation is broken by tensile force, so the backing paper breaks irregularly, but the fracture surface is relatively uniform.

2. Destroyed: If the release layer of the backing paper (usually the silicone oil layer) is damaged, it will also cause the labeling to break. In the case of labeling breakage caused by this situation, the broken surface of the backing paper is serrated. The reason for the damage of the release layer is the defects in the production and coating of raw materials, and at the same time, the release layer may be scratched due to improper methods in the process of inspection and supplementation by the printing factory.

3. Poor die-cutting: The quality of die-cutting also has a great impact on whether the tape is easily broken during automatic labeling. If the die-cutting pressure is too high, the bottom paper will be cut through, causing the tensile strength of the bottom paper to decrease, resulting in labeling. Broken belt. The broken surface of the labeling tape caused by poor die-cutting is relatively uniform, and the crack is at the position of the die-cutting line.

4. Edge: After the self-adhesive label is die-cut and processed into a finished product, the backing paper is generally left wider than the label, in order to facilitate the unveiling of the label when the customer is labeling. In the process of label packaging, transportation and handling, it is easy to crack the bottom paper on the edge of the label and cause small cracks. The automatic labeling machine has tension during labeling, and the label with a crack on the edge of the backing paper is easily pulled off under the action of tension, resulting in the labeling and tape breaking. In addition, there are also cases in which the rollers on the labeling machine are not properly adjusted, resulting in the rollers fracturing the backing paper on the edge of the label and causing the labeling to break. Generally, the labeling and tape breakage is caused by the roller crushing the bottom paper, and the cracks of the bottom paper are relatively regular.