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 do if the TPU hot melt adhesive film does not melt?
TPU hot melt adhesive film has been used in many industries, such as footwear and clothing industries. 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 obtain a strong bonding effect is a problem that many users care about.
This is because every material has a temperature range that it can withstand. Some materials can withstand high temperatures, and some materials can withstand low temperatures. When the temperature resistance of our material itself is not high, it is easy to be deformed by heat. When we choose TPU hot melt adhesive film to bond this material, we must consider this temperature condition. If the melting temperature of the selected TPU hot melt adhesive film is close to the temperature resistance temperature of the material to be adhered, the material will become soft even if the TPU hot melt adhesive film melts. Compression deformation, so it is not bonding, and the material is directly scrapped.
The melting temperature of different specifications of hot melt adhesive film is different, that is, there are high temperature and low temperature. If the heating temperature is higher than the temperature required for the hot-melt adhesive film, the TPU hot-melt adhesive film will melt too fast or too much, so that the glue will easily penetrate into the material to be glued. Especially in some textile fields, if the temperature is too high, the glue will penetrate a little and affect the bonding effect.
The processing of TPU hot melt adhesive film generally needs to be heated to a suitable temperature. Usually the softening temperature of TPU hot melt adhesive film is above 80 degrees. When we heated to this temperature, the TPU hot melt adhesive film began to soften without fusion.
Temperature and pressure are the two basic factors for TPU hot melt adhesive film to obtain good adhesion, and another important factor is the hot pressing time. Because it takes time to heat the TPU hot melt adhesive film, it also takes time to spread the TPU hot-melt adhesive film on the surface of the adherend after melting. The hot pressing time is too long, the adhesive penetrates too much, the hot pressing time is too short, the TPU hot melt adhesive film is not spread well, and the time is too long or too short to be effective.
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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