Keywords:
TPU film
Hot melt film
TPU apron
Electroplating tpu film
Dongguan Green TPU Co.,Ltd.
14year TPU film/TPU hot melt adhesive film custom manufacturer
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Brief introduction of TPU hot melt adhesive film
There are two main styles of TPU hot melt adhesive film, one is TPU hot melt adhesive film with release paper, and the other is TPU hot melt adhesive film without release paper. TPU hot-melt adhesive film with release paper is also called TPU hot-melt adhesive film with lining paper, which means that there is a layer of release paper on one side of the double-sided TPU hot-melt adhesive film, which plays a protective role. The structure is double layer (so-called release paper), and the one without release paper is also called TPU hot melt adhesive film bare film in the industry. It is a single-layer structure with only one layer of double-sided TPU hot melt adhesive film.
2022-05-19
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Brief introduction of TPU hot melt adhesive film

There are two main styles of TPU hot melt adhesive film, one is TPU hot melt adhesive film with release paper, and the other is TPU hot melt adhesive film without release paper. TPU hot-melt adhesive film with release paper is also called TPU hot-melt adhesive film with lining paper, which means that there is a layer of release paper on one side of the double-sided TPU hot-melt adhesive film, which plays a protective role. The structure is double layer (so-called release paper), and the one without release paper is also called TPU hot melt adhesive film bare film in the industry. It is a single-layer structure with only one layer of double-sided TPU hot melt adhesive film. There is little difference in product performance between release paper and release paper, but there are differences in the use methods, which should be selected according to the actual use process of customers. Release TPU hot melt adhesive film can be called TPU hot melt adhesive film with substrate, and the substrate can be divided into release paper and release film. The release TPU hot melt adhesive film with substrate is mainly used for materials that require secondary compounding.

The bonding method of TPU hot melt adhesive film.

First, cut the TPU hot-melt adhesive film to the corresponding width, and bond the TPU hot-melt adhesive film to the cloth by high temperature hot pressing. After drying, the release paper with the film removed is pressed again at high temperature according to the process requirements, which is called hot stamping seamless bonding.

According to the material used, the TPU hot melt adhesive film is attached to the surface of the material by high temperature compounding equipment, and then punched or cut according to the process requirements. After curing, the release paper with the adhesive film removed is pressed onto the surface of the adhesive material at high temperature;

With the rapid progress of science and technology, TPU hot melt adhesive film has developed rapidly in recent years, and it also has some characteristics of ordinary TPU film, which makes its application range wider. to meet the needs of other markets.

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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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