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Introduction to the use of TPU hot melt adhesive film
The TPU hot melt adhesive film adopts the coating process, and the product has strong adhesion, high elasticity, and washability. It can be said to be an environmentally friendly product. TPU hot melt adhesive film has a wide range of bonding and hardness, which is very suitable for various temperature resistance requirements. It has perfect elasticity and can prevent clothes from deforming. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance and good viscosity. The connection effect is better.
2021-12-02
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Introduction to the use of TPU hot melt adhesive film

The TPU hot melt adhesive film adopts the coating process, and the product has strong adhesion, high elasticity, and washability. It can be said to be an environmentally friendly product. TPU hot melt adhesive film has a wide range of bonding and hardness, which is very suitable for various temperature resistance requirements. It has perfect elasticity and can prevent clothes from deforming. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance and good viscosity. The connection effect is better.

In fact, TPU hot melt adhesive film is a double-sided adhesive that needs heating. Most applications that require TPU hot melt adhesive film are to transfer the TPU hot melt adhesive film to material A through high-temperature composite equipment. After cooling and curing, tear off the release paper of the TPU hot melt adhesive film, cover the material B on the TPU hot melt adhesive film, and finally press the surface of the material B at high temperature to achieve the bonding effect. This method is called seamless connection.

Sports shoes industry: First, the user presses the TPU hot-melt adhesive film on the surface of the material through a high-temperature composite device according to the material used in the sample shoe (belonging to leather or cloth), and then performs drying, perforation or electricity according to the various parts of the sample board. After carving, peel off the release paper of the film, and then press the TPU hot melt adhesive film on the surface of the mesh or other fabrics through high temperature and high pressure; this is called seamless bonding upper;

Note: This seamless bonding process is suitable for all sports shoes that do not need to be sewn, but according to different materials and different process requirements, users need to select the corresponding TPU hot melt adhesive film according to the requirements, test first and then use it in batches.

The above is an introduction to the use of TPU hot melt adhesive film. Due to the characteristics of the material, TPU hot melt adhesive film exhibits good washing resistance, flexibility and elasticity. Suitable for textiles, leather, TPU films and sponges. This material has good adhesion and is widely used in clothing, home building materials, shoe materials and many other fields.

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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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