Causes of sticker lifting

In life or work, everyone has experienced the problem of sudden lifting of the sticker. The reasons and solutions are introduced below.

1. The pressure of the pressure roller of the labeling machine is not enough: the appropriate glue material should be selected;

2. The viscosity of the glue is too weak: the appropriate glue material should be selected;

3. Poor control of lamination tension: the label with the correct lamination is flat after peeling off from the backing paper, without curling, and the label can maintain good followability after labeling; the label with too tight lamination tension is from the backing paper After peeling off, the label is warped, resulting in the phenomenon of degumming and warping of the label edge after labeling; self-adhesive labels

4. The bottle shape design is unreasonable: the reasonable design should be that the surface of the bottle body is flat within the labeling range (mainly on the flat round bottle design), but if the surface is partially spherical in the labeling range, paper labels are used When labeling, the labeling is large and large, and the lower end of the label is easy to wrinkle on both sides.

5. Label face material: When selecting the label face material, you should consider whether the labeling object is flat or curved, large or small diameter, single curved surface or spherical surface, rigid body or compressible deformation. There is a direct relationship. The soft bottle body should choose soft materials such as PE, PVC, unstretched PP, and synthetic materials of PE and PP. For rigid bottle body, PET, BOPP, PS materials can be considered;

6. Improper selection of adhesives: When choosing self-adhesive adhesives, we must first determine whether the adhesive required for the self-adhesive labels produced is permanent or removable, whether it is one-time application or re-application , And whether the product has special requirements for the chemical characteristics of the adhesive label adhesive.