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 has many different performance requirements
TPU hot melt adhesive film has many different performance requirements, one of which is water resistance, and among these requirements, water resistance may be the most mentioned. For the garment industry, the washing resistance of TPU hot melt adhesive film is particularly important, because this performance will affect the durability of clothing when using TPU hot melt adhesive film for seamless bonding.
In layman's terms, the washability refers to the performance of materials (usually fabrics) that can maintain high bonding strength after being bonded by TPU hot melt adhesive film, soaked in water at a certain temperature and rubbed repeatedly.
The hot-melt adhesive films with better washing resistance are TPU hot melt adhesive films and PO hot-melt adhesive films. Since they are often used in the field of clothing, there are usually certain requirements for the softness of hot-melt adhesive films. Films are more commonly used. In addition, EVA hot-melt adhesive film with a wide range of applications also has a certain degree of water resistance, but the effect is not as good as TPU hot melt adhesive film.
There are different grades of washing resistance, including washing at room temperature, washing at 60°C, washing at 90°C, etc. As the temperature increases, the requirements for the washing resistance of the hot melt adhesive film are also higher. Taking TPU hot melt adhesive film as an example, most TPU hot melt adhesive films can withstand washing at room temperature, but not all TPU hot melt adhesive films can withstand washing at 60°C.
A key problem with hot melt adhesive films is that they have a melting point. The initial melting point of many types of hot melt adhesive films may be lower than 60°C, and TPU hot melt adhesive films are no exception. Therefore, when the water temperature reaches 60°C, the adhesive film of the bonding material has actually begun to melt, and they cannot withstand the erosion of water.
Therefore, when carrying out the test under the condition of washing at 90°C, the requirements are more stringent. Most TPU hot melt adhesive films may not meet this requirement, so a special formula with high temperature resistance is required to meet the demand

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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