Composite plastic woven bag capable of retaining freshness

[0031] A fresh-keeping composite plastic woven bag comprises a water-absorbing layer, a braided layer and a protective layer from the inside to the outside;

[0032] The water-absorbing layer includes the following raw materials in weight percent: 55 parts of polyurethane pellets, 20 parts of polyethylene, 7 parts of loofah fiber, 0.5 part of coupling agent, 0.5 part of anti-aging agent, 0.5 part of antioxidant, chlorinated polyethylene 0.1 part; the loofah fiber is pretreated by mercerizing with dilute alkali solution. The thickness of the water-absorbing layer is 30 μm.

[0033] The braided layer includes the following raw materials in weight percentage: 60 parts of polypropylene pellets, 20 parts of polyethylene, 5 parts of coolmax fiber, 0.5 part of coupling agent, 0.5 part of anti-aging agent, 0.5 part of antioxidant, chlorinated polyethylene 0.1 part. The thickness of the braided layer is 0.1mm.

[0034] The protective layer includes the following raw materials in weight

[0036] A fresh-keeping composite plastic woven bag comprises a water-absorbing layer, a braided layer and a protective layer from the inside to the outside;

[0037] The water-absorbing layer includes the following raw materials in weight percent: 60 parts of polyurethane pellets, 22 parts of polyethylene, 9 parts of loofah fiber, 1 part of coupling agent, 0.8 part of anti-aging agent, 1 part of antioxidant, chlorinated polyethylene 0.2 part; the loofah fiber is pretreated by mercerizing with dilute alkali solution. The thickness of the water-absorbing layer is 45 μm.

[0038] The braided layer includes the following raw materials in weight percentage: 62 parts of polypropylene pellets, 22 parts of polyethylene, 7 parts of coolmax fiber, 1 part of coupling agent, 0.8 part of anti-aging agent, 1 part of antioxidant, chlorinated polyethylene 0.2 part; the thickness of the braided layer is 0.2mm.

[0039] The protective layer includes the following raw materials in weight percenta

[0041] A fresh-keeping composite plastic woven bag comprises a water-absorbing layer, a braided layer and a protective layer from the inside to the outside;

[0042] The water-absorbing layer includes the following raw materials in weight percent: 65 parts of polyurethane pellets, 25 parts of polyethylene, 10 parts of loofah fiber, 1.5 parts of coupling agent, 1.2 parts of anti-aging agent, 1.5 parts of antioxidant, chlorinated polyethylene 0.3 part; the loofah fiber is pretreated by mercerizing with dilute alkali solution. The thickness of the water-absorbing layer is 60 μm.

[0043] The braided layer includes the following raw materials in weight percentage: 65 parts of polypropylene pellets, 25 parts of polyethylene, 8 parts of coolmax fiber, 1.5 parts of coupling agent, 1.2 parts of anti-aging agent, 1.5 parts of antioxidant, chlorinated polyethylene 0.3 parts; the thickness of the braided layer is 0.25mm.

[0044] The protective layer includes the following raw materials i