With the continuous development of the economy, the actual demand for bags in the industry is increasing, and its performance is very prominent, and therefore, it is very popular. In our daily life, we know that vacuum packaging bags generally use PA+PE, PET+PE, MOPE, PVC. What are the identification methods?
1. PA+PE can burn slowly when it is burned. The flame is bright, the bottom is blue, the upper end is yellow, the molten droplets continue to burn, and the smokeless melt drops the smell of candle blowing and burning wool;
2, from the feel of the hand, the softer feel is the PA material, the harder is the PET vacuum bag;
3, Beyin food bag manufacturers say, from the sound point of view, hand rub, the sound is more blunt is PA material, the sound is sharp and harsh is PET material;
4, put the two materials in the refrigerator freezer for a while, take out the harder is PET material; softer is PA material; recommended reading: how to detect the quality of the woven bag
5, PVC is difficult to burn, it is extinguished from the fire, it is yellow-orange when burning, green on the edge, white smoke, and spray light green and yellow flame, soften, can be drawn, irritating hydrogen chloride smell;
