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How to cope with the insufficient thermal sealing strength of POF shrinkage film

• 2018/4/25 13:06:22
• Industry dynamics

The transparency of the POF shrinkage film is high, the product can be clearly displayed with the shrink film, and the grade of the goods can be improved. But the POF shrinkable film has not enough heat sealing strength, and the POF shrink film factory should teach everyone how to deal with it.
1. Heat seal pressure. To ensure the heat sealing strength of the POF shrinkage film, the pressure should also be guaranteed. During the heat seal process, the heat seal pressure should be moderate and the pressure uneven will make the heat seal gas bubble.
Two, hot sealing time. The hot air time is determined by the speed of the machine. When the heat sealing temperature is constant, the longer the heat seal time is, the stronger the adhesive is between the heat seal layer, but the overlength will be wrinkled.
Three. Heat sealing the temperature. POF shrinkable film manufacturers tell you that the temperature of the POF shrinkage film also has a great impact, it is suggested that the temperature to the POF shrinkage film half melting temperature can be, the temperature will melt POF shrinkage film.
In case of insufficient heat sealing strength, we can take the above measures. We believe we can help you. Welcome to buy POF shrink film.