Labeling machine labeling warping reasons and solutions

Introduction: The closer the label is pasted to the end of the product, the greater the possibility of warping the label after some processes that require heat treatment.

In the process of labeling machine we use, warping is a relatively common phenomenon. Especially in the labeling of self-adhesive labels, the labeling problem is the most likely to occur. Nowadays, automated production lines are becoming more and more popular, and for most products that are labeled first and then filled, capped and sealed, the temperature may rise throughout the process, which in turn may cause the label to warp. The closer the label is applied to the end of the product, the more likely it is to warp after some processes that require heat treatment.

In addition to the impact of temperature, the main reasons for labeling machine labeling warpage are the following.

1, the label on the adhesion is weak, resulting in labeling when the label can not be well adhered to the product.

2, labeling wheel pressure is not enough to cause the label is not fully adhered to the surface of the product.

3, the choice of label material is not suitable for the type of product labeling. The choice of labels should be based on different types, materials, etc. for the selection of materials. Softer products should be selected relatively soft types of labels, materials can be selected from PE, PVC, PP or PE, PP synthetic materials and so on. For the harder products can choose the label material PET, PS, BOPP, etc.

4, the label production on the use of adhesive selection is not appropriate. For some products with a large surface curvature, the label selection adhesive should be selected to use the initial adhesives with greater viscosity. At the same time, the label paper should not choose a thicker or harder material, should choose a thinner material, such as film, thin soft paper materials and so on. And for products that need to go through a process that may heat up the process, the best choice of label material is a film type and the initial adhesion of a better adhesive.

Labeling effect is not only to give a sense of beauty, but also to give a sense of product quality assurance. To achieve a beautiful labeling effect, it is necessary to avoid similar to the labeling in the warped label phenomenon. For the above problems, the solution is also a variety of solutions: 1.

1, control the temperature difference in the labeling process, advance to improve the temperature of the roll label, so that the production process may need to heat the process is to increase the temperature, the temperature difference between the front and rear of the label has been adhered to reduce the impact. Of course, raise the temperature of the labeling can also make the object on the active material will increase with it, so that the label and the product directly to improve the adhesion.

2、Improve the viscosity of the label. For most of the warped label, the most direct and effective way to solve this problem is to increase the stickiness of the label, so that it adheres to the product surface more firmly.

3, increase the strength of the labeling mechanism, so that the label can be fully adhered to the surface of the product.

4, the choice of label material, try to use softer materials, improve the ductility of the label can effectively improve the problem of label warping.

5, the production of labels, consider the shape of the bottom of the label using the practice of circular arc, can effectively avoid deformation zone.

6, in the labeling process is easy to generate static electricity, may make the label adsorbed some dust and thus affect the labeling effect.

7, there are a number of products will have some dust, protective oil and other substances on the surface.