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Food packaging bags are often used in people's lives. Many people think that food packaging bags are not toxic. In fact, this view is crops, because some illegal businesses and informal manufacturers exist in the food packaging industry. There are also toxic food packaging bags. Therefore, people must be careful when using it. So, how do you identify it? There are usually six tips:

First, use eye observation

The non-toxic plastic bag is white, transparent or slightly transparent, and the texture is uniform; the toxic plastic bag is colored or white, but the transparency is poor, the turbidity, the plastic surface is unevenly stretched, and there are small particles.

Second, listen with your ears

When the plastic bag is shaken by hand, the crisp sound indicates a non-toxic plastic bag; and the small and stuffy sound is a toxic plastic bag.

Third, touch by hand

Touching the surface of the plastic bag by hand, it is very smooth and non-toxic; it is toxic when it is sticky, cyan, and waxy.

Fourth, smell with the nose

Non-toxic plastic bags are odorless; irritating or unpleasant taste is toxic.

Five, submersible test method

Put the plastic bag in the water, press it to the bottom of the water by hand, wait a moment, the non-toxic plastic packaging bag that floats out of the water, and the toxic plastic packaging bag that sinks under the water.

Sixth, the combustion method

The non-toxic plastic bag is flammable, the flame tip is yellow, the part is cyan, it is dripping like a candle tear when burning, and it has a paraffin smell; the poisonous plastic bag is not easy to burn.

The flame is extinguished, the flame tip is yellow, the bottom is green, and the softening can be drawn.

Qingdao Zhongtuo Plastics Co., Ltd. specializes in the design and production of pet food bags, high temperature cooking bags, frozen food bags, aquatic packaging bags, snack food bags, etc. We are a professional packaging bag manufacturer in China, providing consumers with simple and practical.Beautiful bag products. Welcome to call the service hotline for free samples, 24-hour service hotline: +86 15020031364