How to deal with the situation of label breaking in labeling machine

Self adhesive label in the die-cutting processing into finished products, will generally leave the backing paper wider than the label, so as to facilitate the release of the label when the customer labels In the process of label packaging, transportation and handling, it is easy to crack the bottom paper at the edge of the label, resulting in small cracks The automatic labeling machine has a certain tension when labeling, and the label with a crack on the edge of the bottom paper is easy to be pulled off under the action of tension, resulting in the label breaking In addition, the improper adjustment of the roller on the automatic labeling machine causes the bottom paper on the edge of the label to be fractured and the labeling belt is broken Generally, the bottom paper is broken due to roller pressure, and the cracks of the bottom paper are regular 1 Tightness causes that if the label of the finished product is rewound too tightly, the adhesive in the adhesive will be extruded and lead to glue leakage, and the leaked glue will stick on the back of the backing paper so that the label of the whole roll is not easy to loosen This is especially true in summer If the label is relatively narrow, the tensile strength of the base paper per unit area will not be too large The automatic labeling machine has certain tension in the labeling process When a roll of labels with glue leakage is used for automatic labeling, it is likely that the bottom paper of the label removed will be pulled and broken under the effect of the tension of the labeling machine and the tension from the inside of the roll body during labeling In this case, due to the tensile pull, the bottom paper breaks irregularly, but the fracture surface is relatively uniform 2 Poor die-cutting quality also has a great influence on whether it is easy to break when labeling automatically If the die-cutting pressure is too high, the bottom paper will be cut through, resulting in the decrease of the tensile strength of the bottom paper, resulting in the label breaking The bottom paper fracture surface of the label fracture belt caused by poor die cutting is relatively even, and the crack is at the die cutting line position 3 Damaged If the release layer (usually silicon oil layer) of the backing paper is damaged, it will also lead to label fracture zone This kind of situation causes the label fracture zone, and the fracture surface of the base paper is serrated The reasons for the damage of the release layer are the defects in the coating process of raw material production At the same time, in the process of inspection and supplement of the standard in the printing factory, due to improper techniques, it may also cause the scratch of the release layer.