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Characteristics of TPU hot melt adhesive film​ for composite luggage
We have a preliminary understanding of TPU hot melt adhesive film, which is a multi-melting point hot melt adhesive film. In addition to the medium and high temperature type and has certain washing resistance, low temperature resistance and high temperature resistance, it also shows good elasticity and is widely used in practice.
2022-06-23
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Characteristics of TPU hot melt adhesive film for composite luggage

We have a preliminary understanding of TPU hot melt adhesive film, which is a multi-melting point hot melt adhesive film. In addition to the medium and high temperature type and has certain washing resistance, low temperature resistance and high temperature resistance, it also shows good elasticity and is widely used in practice.

TPU hot melt adhesive film has excellent washing/dry cleaning and high and low temperature performance, good air permeability, soft hand feeling, strong adhesion, good elasticity and resilience. From the perspective of the company's own environmental protection and safety, the use of polymer TPU hot melt adhesive film has more advantages in environmental protection and safety. In the production process, the gluing workshop needs to use environmental protection treatment facilities, and the environmental protection investment and operation costs of the equipment are very expensive. Especially in the economically developed Yangtze River Delta and Pearl River Delta regions, more and more enterprises adopt glue production technology. Since glue is a dangerous product, it needs a special warehouse for dangerous goods, which increases the investment in environmental protection and safety risks, and it is difficult to approve.

Characteristics of TPU hot melt adhesive film for composite luggage

TPU hot melt adhesive film for luggage has good low temperature resistance and high temperature resistance, low temperature resistance as low as minus 20 degrees, and high temperature resistance as high as about 150 degrees. At the same time, it has certain elasticity and good washability. In addition, TPU hot melt adhesive film also has good adhesion, good bonding effect, durability, no discoloration, and certain waterproof performance, which is convenient for transportation and storage. All these properties can satisfy its application in the formulation of luggage products.

TPU hot melt adhesive film has no elasticity at low temperature, while TPU hot melt adhesive film shows good elasticity at high temperature. TPU hot melt adhesive film is a recyclable and environmentally friendly product, and the loss rate is low in the whole process of production and use of TPU hot melt adhesive film. Film scraps can be fully recycled in the process of making key materials, which has the advantages of reducing energy consumption, activation temperature, initial setting, carbon dioxide emissions and cost.

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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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