In order to ensure the quality of packaging bags, the aging problem of plastic woven bags should be paid great attention to. For this reason, the competent authority of the national building materials industry once required that recycled materials and recycled materials are not allowed in the bag-making raw materials, and the amount of filling materials should be strictly limited to no more than 5%. At the same time, the temperature of the laminating film should be strictly controlled to avoid process problems. Causes accelerated aging problems. Excessive addition of recycled materials is also one of the reasons for the aging of woven bags.
Theoretically speaking, the raw materials of woven bags are recycled and reused after being extruded and drawn. They all belong to the scope of recycled materials. However, like other products, it is impossible to produce scraps and waste in the production process. Generally speaking, the non-recycled plastic woven bag means that when the woven bag is produced, there is no external purchase of waste and recycled materials. The flat yarn and waste wire in the production are added to the new material in proportion to reuse, which is "the woven bag without recycled material. ". In order to reduce costs, some woven bag manufacturers use more than the specified proportion of recycled materials (side wire or waste wire), and the woven bag will have the problem of unqualified strength. This should be paid attention to.

In addition, the excessive amount of titanium dioxide is mixed in the ingredients, which increases the dust of the plastic woven bag produced, and also affects the strength of the plastic woven bag. Therefore, the relative breaking force of woven bags containing recycled materials is significantly reduced. If a secondary return material is added, the relative breaking force of 0.32N/tex cannot be guaranteed. The elongation at break is unstable, and the breaking rate decreases depending on how much recycled material is added. The brittleness of recycled material woven bags is significantly increased, especially the low temperature brittleness is worse, the impact resistance is reduced, the electrical insulation is reduced, the aging degree is increased, and the speed is accelerated.