YuChun
Email : info3@greentpu.com
Add:No. 11, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China
(Old address:No. 232, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China)
TPU hot melt adhesive film is required to have water resistance
There are many performance requirements for TPU hot melt adhesive film. Water resistance is one of them, and it is also one of the more mentioned properties. Especially for the clothing industry, the washability of TPU hot melt adhesive film is very important. It is related to the wearability of the clothing using TPU hot melt adhesive film for seamless bonding.
Generally speaking, water washability means that the material (usually fabric) can maintain a high adhesive strength after being bonded by TPU hot melt adhesive film, soaked in water at a certain temperature and repeatedly rubbed.
The hot melt adhesive film with good water washability is TPU hot melt adhesive film and PO hot melt adhesive film. Because it is often used in the field of clothing, there are usually certain requirements for the softness of the hot melt adhesive film, so TPU hot melt adhesive film is more commonly used. In addition, EVA hot-melt adhesive film with a wide range of applications also has certain water washability, but its effect is less than that of TPU hot melt adhesive film.
Water washability is also divided into different grades, such as normal temperature water washing, 60 ℃ water washing, 90 ℃ water washing, etc. The higher the temperature, the higher the requirement for the washability of the hot-melt adhesive film. Take the TPU hot melt adhesive film for example, the resistance to normal temperature water washing is generally no problem for most TPU hot melt adhesive films.
In terms of the characteristics of TPU hot melt adhesive film itself, the high temperature resistance of TPU hot melt adhesive film is relatively poor, because it is a thermoplastic material, which needs to be heated and melted, and then cooled and hardened to produce adhesion. The initial melting point of conventional TPU hot melt adhesive film is generally between 40 ℃ and 120 ℃, so in theory, the high temperature resistance is about 120 ℃. However, when the actual temperature is less than 120 ℃, the TPU hot melt adhesive film may soften to a certain extent, so the actual temperature resistance is a little lower than this temperature, which is about 100 ℃, which may be the peak of the current conventional TPU hot melt adhesive film film products.

YuChun
Email : info3@greentpu.com
Add:No. 11, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China
(Old address:No. 232, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China)
· Sample thickness, width to write clearly.
· Sample color and surface effect to be noted.
· Sample hardness and special requirements Please note.
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