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How to detect the authenticity of non-woven bags?

How to detect the authenticity of non-woven bags:
Method 1: Water detection method
Put the non-environmental protection bag in water and press it into the bottom of the water. The non-toxic non-environmental protection bag has a small specific gravity and can float to the surface.

Method 2: Fire detection method
The non-toxic polyethylene non-environmental protection bag is flammable, the flame is blue, the upper end is yellow, drips like candle tears when burning, has a paraffin smell, and has less smoke; the toxic PVC non-environmental protection bag is not flammable, and it is extinguished after leaving the fire. , the flame is yellow, the bottom is green, softening can be drawn, and there is a pungent odor of hydrochloric acid.

Method 3: Jitter detection method
Grab one end of the non-environmental-friendly bag with your hand and shake it hard, and those who make a crisp sound are non-toxic; those who make a muffled sound are poisonous.

Method 4: Sensory detection method
Non-toxic non-environmentally friendly bags are milky white, translucent, or colorless and transparent, flexible, smooth to the touch, and waxy on the surface; toxic non-environmental bags are cloudy or yellow in color, and feel sticky.

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