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What are the benefits of TPU hot melt adhesive film
​TPU hot melt adhesive film is widely used in clothing, footwear, bags, handbags, clothing, medical treatment, military, toys, shoe fabric lamination, silicone chest pads because of its high initial adhesion and can bond a variety of materials , underwear accessories, waterproof zippers, trademark lamination, computer 3C supplies, water-filled bags, inflatable bags, foam composite products and other fields.
2023-07-19
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What are the benefits of TPU hot melt adhesive film

    TPU hot melt adhesive film is widely used in clothing, footwear, bags, handbags, clothing, medical treatment, military, toys, shoe fabric lamination, silicone chest pads because of its high initial adhesion and can bond a variety of materials , underwear accessories, waterproof zippers, trademark lamination, computer 3C supplies, water-filled bags, inflatable bags, foam composite products and other fields.

    Because it contains no solvents and is 100% solids, there is no flammability or explosion hazard during processing and shipping. In addition, there are the following advantages:

    (1) The TPU hot melt adhesive film has a fast curing speed and solidifies immediately after cooling. The production speed is high and the equipment space is saved.

    (2) The bonding process is simple, less waste, and there is no problem of mixing ingredients.

    (3) 100% solid content, can be fully utilized, less waste, can reduce transportation and storage costs.

    (4) TPU hot melt adhesive film can be bonded to a wide range of substrates and can be processed automatically.

    (5) Excellent chemical and physical properties, high adhesive strength and flexibility.

    (6) TPU hot melt adhesive film does not use organic solvents and has no VOC pollution problem.

    (7) The material is made of environmentally friendly materials, which can naturally degrade waste.

    Processing methods

    There are three ways to use the product: film treatment, grinding and dissolution treatment.

    The production of TPU hot melt adhesive film generally adopts extrusion processing, and the thickness is controlled at 0.05~0.3mm. The production will use release paper or adopt high and low temperature double-layer structure. The downstream users are easy to use and operate. Just put the TPU hot melt adhesive film on the The two layers of fabric to be pasted can be pasted by pressing with an iron or a heat press.

    The grinding process is to use the ultra-low temperature environment to reduce the material below the glass transition temperature for grinding. The downstream processing can sprinkle the powder on the fabric and bond it by hot pressing or infrared heating.

    Dissolving processing is to dissolve the TPU hot melt adhesive film in a specific solvent, such as butanone, acetone, toluene and other solvents. Customers can combine the existing solvent glue processing methods, because the TPU hot melt adhesive film has high safety and stability. For Cross-border trade and delivery are very important, and it is widely used in the shoe industry and textile lamination.

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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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