how to identify plastic packaging materials is harmful?
Plastic packaging material classification:
1. Food grade: Food grade plastic is a special packaging container specially designed for food, and does not contain any unsafe ingredients;
2, reuse: This plastic packaging material belongs to recycling, has the characteristics of degradability, is widely used in the milk manufacturing industry;
3. Specific chemicals: Plastic packaging materials containing phthalates are classified as specific chemicals;
How to identify whether plastic packaging materials are harmful?
1. Put the packaging material into the water, such as plastic bag material. Under normal circumstances, if it is toxic, it will not float, and the non-toxic and harmless plastic packaging will surface.
2, the surface is smooth and not rough, generally non-toxic plastic, and the toxic touch will be relatively poor;
3, the plastic packaging material that can make a crisp sound is non-toxic, it is generally toxic to force the shot to not make a crisp sound;
4, the use of fire detection is also a very good method, under normal circumstances, toxic will not burn, non-toxic and easy to burn;
