Plastic woven bags containing toxic, oxidizing, or corrosive chemicals. After long-term storage of chemicals, the chemicals can penetrate into the molecular gaps of the plastic, making them difficult to remove.
Woven bags used for packing dyeing and printing materials, the reasons are largely the same as those mentioned above.
Be cautious with plastic bags woven from waste that contain toxic and harmful chemical materials, as they have a刺激性 odor. Ensure you are clear on whether they can be produced or purchased; otherwise, it's not worth the risk.
The standard specifies that plastic woven bags should not be stored in cool, clean indoor conditions for more than 18 months. Since plastic woven bags are made of polypropylene material and age quickly under sunlight, woven bags lose their usability after being used outdoors for three to six months.