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TPU film manufacturers should pay attention to the production process of products
​Although TPU film is also a kind of film, compared with ordinary film, it is more environmentally friendly, high elastic, and can be used in a very wide range, which can provide more convenience for people's production and life. ​TPU film manufacturers must pay attention to the following factors in the production process:
2022-11-22
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TPU film manufacturers should pay attention to the production process of products

    Although TPU film is also a kind of film, compared with ordinary film, it is more environmentally friendly, high elastic, and can be used in a very wide range, which can provide more convenience for people's production and life.

    TPU film manufacturers must pay attention to the following factors in the production process:

    1. Keep the dryness of the whole production environment. In the process of TPU film production, for TPU film manufacturers, if TPU materials are exposed to the air for a long time, they will absorb moisture in the air. In the subsequent film production and processing, problems such as unsmooth surface of the finished products and bubbles will occur, even reducing the film performance.

    2. Control the specific requirements for drying degree during drying process. Polyammonium contained in TPU film is easily destroyed by water molecules and hydrolyzed into acid energy. Under the same conditions, its internal water content is significantly higher than that of polyether TPU film, so it is necessary to control the relevant drying conditions during the whole drying process.

    3. In general, the molecular weight of polyester TPU film is wider than that of polyether TPU film, and higher temperature is required during the whole processing, while polyether TPU film requires relatively lower temperature during the processing.

    In practical application, TPU film has excellent performance in the above aspects, and its resistance to twists and turns is also very good. Even in a relatively harsh environment, the film can still retain its superior bending performance, and the entire application range has been greatly improved. It can be seen that although this kind of film is much more expensive than ordinary films in terms of price, it is easier to meet the application needs of everyone in terms of performance, and it is also a kind of product with good cost performance ratio.

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TPU hot melt adhesive film vs anaerobic adhesive: "Scene flexibility" difference in automotive interior bonding
2025-09-11
​From the perspective of curing conditions, TPU hot melt adhesive film does not need to rely on special environments, while anaerobic adhesives are severely restricted by "auerobicity". The curing principle of anaerobic glue is to undergo polymerization under conditions of lack of oxygen and catalyzed by metal ions (such as iron and copper). If it is in an environment where air circulation or metal substrates are not available, the curing speed will be greatly slowed down or even unable to cure. In automotive interiors, most bonding scenarios are "open" (such as bonding the door panel skin to PP substrate, and the ceiling fabric to the sponge), the air can freely contact the bonding surface, and the substrate is mostly non-metallic (PP, ABS, fabric, etc.), lacking metal ion catalysis, and additional catalyst is required when using anaerobic glue, and the curing time is as long as several hours, which is difficult to meet the needs of industrial production. The TPU hot melt adhesive film only needs to be melted by heating (120-160℃) and can be cured after pressurization and cooling. It does not need to rely on the ambient oxygen concentration or the base material. It can be cured stably in open or closed bonding scenarios, and the curing time only takes a few dozen seconds to a few minutes, adapting to the fast-paced needs of the interior production line.
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