What to do if the hot melt adhesive film is overheated
Sep 23, 2024
What are the effects of overheating hot melt adhesive film?
Hot melt adhesive film is a product with good viscosity. When using this product to laminate materials, it is necessary to control the heating degree of the entire adhesive film. Usually, if the heating temperature of the adhesive film is too high or too low, it will affect its adhesion and the final lamination effect. Let's take a look at the effects of overheating the hot melt adhesive film.
The impact of excessive heating temperature of hot melt adhesive
1. Hot melt adhesives are divided into low-temperature hot melt adhesives and high-temperature hot melt adhesives. If they are heated by equipment with too high a temperature, some low-temperature hot melt adhesives may easily cause aging, deterioration or carbonization of the adhesive film. The occurrence of these situations may easily affect the bonding performance of the adhesive film, resulting in a significant impact on the quality of the final composite product.
2. If the heating temperature of the hot melt adhesive film is too high and the melting degree exceeds the required standard, it is easy for the adhesive to penetrate or seep through. If it is accidentally stuck to the equipment and not handled in time, the adhesive film will easily age and accumulate. At the same time, it will also cause the equipment to be contaminated, or even worse, cause damage to the equipment, affecting its overall service life.
Different types of hot melt adhesive films have different processing parameters, which are mostly determined according to the melting range and melt index of the adhesive film. In actual production applications, enterprises must pay attention to heating according to the specific type of hot melt adhesive used and the relevant melting temperature requirements. If they pay too much attention to production efficiency, the final result will often outweigh the gains. It can be seen that when using hot melt adhesive film, it is necessary to strictly follow the requirements of the production process to carry out the corresponding processing, so that the final composite effect can be better.
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