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)
What should I pay attention to when using TPU hot melt adhesive film?
When we use TPU hot melt adhesive film, we often encounter some problems. For example, after the TPU hot melt adhesive film is hot-pressed, the adhesive layer will generate air bubbles, and the air bubbles remain between the adherend and the adhesive layer; there are also TPU hot melt adhesive films due to low working temperature, low pressure, and short time. Is it enough to wait for this series of problems to be solved in this way?
Prevent TPU hot melt adhesive film from generating air bubbles during hot pressing
Before using the TPU hot melt adhesive film, we must check whether the TPU hot melt adhesive film contains too much moisture. If there is too much moisture on the surface, water vapor will be generated during hot pressing. When water vapor cannot be removed, bubbles are created. So in general, you should also pay attention to storing TPU hot melt adhesive films. The air humidity in the storage area should not be too high, and good ventilation conditions must be maintained to avoid excessive moisture content in the TPU hot melt adhesive film.
In order to better discharge the air in the rubber layer during hot pressing, roller hot pressing should be used as much as possible, which can effectively discharge the air in the rubber layer. , which can effectively exhaust air and reduce the chance of air bubbles.
TPU hot melt adhesive film is easily melted insufficiently due to low operating temperature, too low pressure, and too short time. It is only necessary to adjust the equipment according to the operating temperature, time, and pressure reference values required by the technical specifications given by the TPU hot melt adhesive film manufacturer. Debug, test according to the actual situation, and determine the compound conditions. If the problem in operation can be ruled out, it is necessary to check whether the wrong type of TPU hot melt adhesive film is selected.
Generally speaking, different types of TPU hot melt adhesive films are suitable for different adhesive materials. This is what we often call material compatibility. If you choose the wrong type of TPU hot melt adhesive film, just replace the correct TPU hot melt adhesive film.

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.
Please contact: +86-13686006083(WeChat)
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