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The operation time of TPU hot melt adhesive film bonding is adjusted according to the temperature
​The main component of the raw material of TPU hot melt adhesive film is the polymer substance of thermoplastic polyurethane elastomer rubber, which has good elasticity with the increase of melting point temperature. So it is not elastic at low temperature environment, the elasticity of high temperature film is very good. TPU hot melt adhesive film is a common type among many hot-melt adhesive films. Because it is relatively soft and has good washing resistance, for the clothing industry, TPU hot melt adhesive film​ is used to bond fabrics. , would be better. For manufacturers of related fabrics, although most TPU hot melt adhesive films are applicable, there are still differences, and careful identification should be taken when choosing.
2023-04-18
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The operation time of TPU hot melt adhesive film bonding is adjusted according to the temperature

    The main component of the raw material of TPU hot melt adhesive film is the polymer substance of thermoplastic polyurethane elastomer rubber, which has good elasticity with the increase of melting point temperature. So it is not elastic at low temperature environment, the elasticity of high temperature film is very good. TPU hot melt adhesive film is a common type among many hot-melt adhesive films. Because it is relatively soft and has good washing resistance, for the clothing industry, TPU hot melt adhesive film is used to bond fabrics. , would be better. For manufacturers of related fabrics, although most TPU hot melt adhesive films are applicable, there are still differences, and careful identification should be taken when choosing.

    In the use of TPU hot melt adhesive film, the bonding temperature is a particularly important factor, because the TPU hot melt adhesive film begins to melt at a certain temperature, so special attention should be paid. If the glue temperature is too low, it will cause insufficient melting of the hot melt glue powder, poor fluidity, and affect the bonding effect. If the glue temperature is too high, the TPU hot melt adhesive film will melt too much. If the hot pressing time is not adjusted in time, the glue layer will penetrate too much and the glue layer will lack glue. It should be noted that the operation time of TPU hot melt adhesive film bonding is adjusted according to the temperature. When the temperature is higher, the time is shorter. When the temperature is low, the time needs to be extended accordingly.

    Application in hot pressing of insoles

    During the production process of the insole, TPU hot melt adhesive film is used to bond it, the bond can be stronger, and the washing resistance will be better in the subsequent use process. At the same time, the entire bonding layer is even, without defects such as abnormal looseness and folding, which better improves the comfort of the entire shoe.

    Composite on the sole

    When the TPU hot melt adhesive film is used to compound the sole, the entire compound process will not waste too much film, which can make the entire sole more firm and improve the bending resistance and aging resistance of the entire sole.

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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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