Analysis and treatment of warping problem of hot melt adhesive labeling machine
Hot melt adhesive labeling machines play an important role in the commodity market. Products with trademarks can give people a sense of security, and at the same time, the products are more aesthetic. However, some labeling machines will warp the label during the labeling process, which will not only affect the visual effect of the product, but also reduce the grade of the product. Why does the labeling opportunity lift the label? How to avoid such problems? Almost every manufacturer has similar problems in practical applications. The pipe is labeled before being filled, and the filling and sealing after pasting is particularly serious in the sealing process. The closer the label is to the bottom, the more likely it is to warp the label. There are still many solutions to the problem of labeling machine warping, mainly including the following.
First, to avoid the problem of label warping, you can start with the label. The label material should be as soft as possible. Some label warping problems are mainly due to poor material and poor ductility of the label. Once the label is processed by the labeling machine, it is easy to warp the label. In addition, the label lift problem can be improved by changing the shape of the label. The bottom end of the label is made into an arc to avoid the deformed area of the seal tail as much as possible. Of course, the arc cannot be opened too deep, otherwise the label itself will easily cause wrinkles and unnecessary trouble. The special shape of the sealing tail needs to change the shape of the label accordingly, which can not only avoid label warping, but also increase the aesthetics. Second, increase the viscosity to make the label as strong as possible. In the labeling process, controlling the labeling pressure and increasing the labeling temperature will improve the labeling effect, because as the temperature rises, the activity of the internal substances of the object will increase, and the label will be easier to fuse with the tube body, which can increase the label The viscosity of the product is better to stick the label on the product, so as to avoid the phenomenon of label warping. In addition, we should also pay attention to the surface quality of the product. If the surface of the product is covered with varnish, it will increase the difficulty of labeling, and the leakage of the content and the micro-holes on the tube wall will cause the label to be warped.
Third, static electricity will be generated during the labeling process, which will also cause label warping. Therefore, in order to improve the problem of label warping, the humidity of the label position should be increased appropriately, or an ion blower should be used. In addition, the labeling machine is equipped with an automatic humidity control device, which can independently control the cleanliness of the equipment, keep the label away from dust, and improve the labeling quality of the product. In this way, there is no longer a mark-up phenomenon in the marking process, and a visual effect is realized.
The identification of products in the labeling unit is an important factor that affects the image of the product. However, the issue of raising standards will reduce the image of the product, and even if the product is of good quality, the sales volume will drop. Therefore, the issue of raising standards must be an important link in the production and sales of commodities.
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