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How to use TPU hot melt adhesive film
The TPU film adopts the coating process, and the product has strong adhesion fastness, high elasticity and washing resistance, which can be said to be an environmentally friendly product. TPU hot melt adhesive film has a wide range of bonding and hardness, suitable for various temperature resistance requirements, with perfect elasticity, and can keep clothes unchanged. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance and good bonding effect. Next, let's talk about how the TPU hot melt adhesive film is applied in the apparel industry, sports shoe industry, and leather case industry.
2021-09-23
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How to use TPU hot melt adhesive film

The TPU film adopts the coating process, and the product has strong adhesion fastness, high elasticity and washing resistance, which can be said to be an environmentally friendly product. TPU hot melt adhesive film has a wide range of bonding and hardness, suitable for various temperature resistance requirements, with perfect elasticity, and can keep clothes unchanged. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance and good bonding effect. Next, let's talk about how the TPU hot melt adhesive film film is applied in the apparel industry, sports shoe industry, and leather case industry.

First of all, in the sports shoe industry, users need to transfer the TPU hot melt adhesive film to the surface of the material through a heat transfer machine. After drying, each customized part is electro-engraved and blank. This is called seamless in our industry. Glue the upper.

Then there is the clothing industry. First, according to the requirements of the fabric, the TPU hot melt adhesive film is cut into the corresponding width, and then pressed on the surface of the fabric at a high temperature until the TPU hot melt adhesive film film is fully bonded, and then high temperature pressing is performed according to the process requirements. This method is called hot stamping seamless bonding.

Finally, in the suitcase industry, TPU hot melt adhesive film is attached to the surface of the material, and after curing, the release paper is removed and then thermally transferred to the surface of the attached material.

All the materials mentioned above are diverse. According to the temperature resistance and folding resistance of the materials used, select the TPU hot melt adhesive film with a relatively melting point, and conduct mass production after testing according to the process requirements.

TPU hot melt adhesive film is a recyclable green product, and the loss rate is low during the production and use of hot melt adhesive film. The cut film scraps can be completely recycled and reused in the process of making the input material, which has the green advantage of reducing energy consumption, activation temperature, solidification time, carbon dioxide emissions and cost. Moreover, the time required for the complete activation of the TPU hot melt adhesive film is relatively short, and the traditional woven adhesive film can only be fully activated at a lower temperature.

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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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