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TPU film
Hot melt film
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Environmentally friendly TPU hot melt adhesive film
From the perspective of the company's own environmental protection and safety, the use of polymer TPU hot melt adhesive film​ has more environmental protection and safety advantages. In the production process, the glue coating workshop needs to use environmental protection treatment facilities
2022-04-28
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Environmentally friendly TPU hot melt adhesive film

From the perspective of the company's own environmental protection and safety, the use of polymer TPU hot melt adhesive film has more environmental protection and safety advantages. In the production process, the glue coating workshop needs to use environmental protection treatment facilities, and the environmental protection investment and operation cost of the equipment are very expensive. Especially in the economically developed regions of the Yangtze River Delta and the Pearl River Delta, more and more enterprises are adopting glue production technology. Since glue is a dangerous product, it needs a special warehouse for dangerous goods, which increases environmental protection investment and safety risks, and it is difficult to approve.

The main component of TPU hot melt adhesive film is thermosetting polyurethane material, so it is also called thermosetting polyurethane material TPU hot melt adhesive film. It has excellent washability and good flexibility, and is the most popular TPU hot melt adhesive film of all materials. TPU hot melt adhesive film is divided into high melting point type and low melting point type, which not only have different working temperatures, but also have very different characteristics. The high temperature TPU hot melt adhesive film has ductility, the color is completely transparent, the higher the melting point, the higher the elasticity and transparency of the TPU hot melt adhesive film. The ultra-low temperature TPU hot melt adhesive film is elastic, and the color is milky white frosted.

TPU hot melt adhesive films have been used in many industries such as footwear and apparel. In fact, different industries have different requirements for TPU hot melt adhesive films, and the specific processes are also different. How to make the TPU hot melt adhesive film have a firm bonding effect is a problem that many users care about.

TPU hot melt adhesive film is a recyclable and environmentally friendly product, and the loss rate is low during the production and use of TPU hot melt adhesive film. Cut film scraps can be fully recycled and reused in the process of making key materials, which has the environmental advantages of reducing energy consumption, activation temperature, initial setting, carbon dioxide emissions, and cost reduction. Moreover, the time required for the complete activation of the TPU hot melt adhesive film is relatively short, and the traditional knitted yarn tape can only be fully activated at a lower temperature.

The environmental protection situation in my country is also very serious, so the environmental protection problem of TPU hot melt adhesive film should be regarded as an important turning point in the development of enterprises. Enterprises need to identify their positioning and seize opportunities. Manufacturers must start with quality, differentiation, service, etc., and through continuous innovation and practice, can they keep up with the pace of market development.

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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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