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The cold resistance of TPU hot melt adhesive film is also very important in practical applications
​TPU hot melt adhesive film is a widely used hot-melt adhesive film product. It is widely used in clothing, footwear, packaging and other fields, and its dosage is second only to EVA hot-melt adhesive film. So, what are the specific characteristics and advantages of TPU hot melt adhesive film that make it widely used? Here is a brief introduction.
2022-12-13
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The cold resistance of TPU hot melt adhesive film is also very important in practical applications

    TPU hot melt adhesive film is a widely used hot-melt adhesive film product. It is widely used in clothing, footwear, packaging and other fields, and its dosage is second only to EVA hot-melt adhesive film. So, what are the specific characteristics and advantages of TPU hot melt adhesive film that make it widely used? Here is a brief introduction.

    The main economic component of TPU hot melt adhesive film is thermoplastic synthetic polyurethane, so the polyurethane hot melt adhesive film is also called thermoplastic polyurethane. TPU hot melt adhesive film has the common student characteristics of some polyurethane composite enterprises in China, such as soft materials, cold resistance and water resistance.

    TPU hot melt adhesive film is softer than hot-melt adhesive film of other materials at the same thickness, so it is very suitable for composite bonding of clothing fabrics. After TPU hot melt adhesive film, it will feel very comfortable to wear it on people, without plastic feeling and exotic appeal.

    In addition, the cold resistance of TPU hot melt adhesive film is also very important in practical applications.

    For example, the cold resistance of hot melt adhesive film is poor. If not modified, it will become very hard and brittle in winter, affecting the final bonding effect. TPU hot melt adhesive film has no such problem. It is not only 30-40 ℃ below zero, but also needs to maintain good elasticity.

    Another advantage of TPU hot melt adhesive film is its excellent washability. As we all know, TPU hot melt adhesive film is often used for fabric bonding in the clothing field. However, clothes need to be cleaned during use. The washability of TPU hot melt adhesive film makes our clothes more durable.

    Research field of application of TPU hot melt adhesive film: It has strong bonding technology for different fabrics, TPU, PVC, as well as various production fabrics and shoes, mainly used in trackless underwear, ski suits, waterproof and cold proof clothing, down jackets, diving suits, etc.

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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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