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Application and characteristics of TPU hot melt adhesive film
TPU film is a type of material in hot melt adhesive film. Its main component is TPU, which is a polyurethane elastomer rubber polymer compound. It is an environmentally friendly material, non-toxic and harmless to the human body and the environment, and has the characteristics of oil resistance, water resistance, mildew resistance, and drug resistance.
2021-11-26
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Application and characteristics of TPU hot melt adhesive film

TPU film is a type of material in hot melt adhesive film. Its main component is TPU, which is a polyurethane elastomer rubber polymer compound. It is an environmentally friendly material, non-toxic and harmless to the human body and the environment, and has the characteristics of oil resistance, water resistance, mildew resistance, and drug resistance.

TPU hot melt adhesive film is mainly used in the fields of clothing accessories and shoe materials. Due to its good water resistance and softness, it is very suitable for the processing of clothing fabrics. Such as seamless underwear, embroidered trademarks, waterproof zippers, etc.

Product characteristics of TPU hot melt adhesive film;

1. TPU hot melt adhesive film has good washing resistance, but poor dry cleaning resistance;

2. TPU hot melt adhesive film can withstand high temperature of 110 degrees and low temperature of minus 20 degrees;

3. At the same time, TPU hot melt adhesive film also has good elasticity, which can be made into high elasticity according to our own requirements!

The high and low temperature in the high and low temperature hot melt adhesive film is the high and low temperature of the melting point. Low temperature hot melt adhesive film refers to a low melting point hot melt adhesive film.

The TPU hot melt adhesive film can be a hot-melt adhesive film with a melting point of 65, which can truly achieve low temperature.

TPU hot melt adhesive film has to go through such a high temperature melting process in terms of manufacturing technology. In this development process, we can improve the volatilization of harmful chemicals in some companies and ensure that their active ingredients are safer. When the hot melt adhesive film is used to produce products and composite materials, even if it is analyzed again as a "high temperature" environment, no other harmful substances will volatilize. Therefore, after these two high temperature treatments, it is to ensure that the TPU hot melt adhesive film is a completely non-toxic and harmless environmentally friendly adhesive.

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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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