What is the material of a plastic woven bag?

White color pp woven bag
White color pp woven bag

A plastic woven bag is a commonly used plastic bag, mainly made of polyethylene or polypropylene. It is stretched into a flat wire, and then weaved, compiled, and bag-made. Due to the strength, rigidity, and transparency of polypropylene are better than polyethylene, so It is used more, and the function of woven bags is also more extensive. They are usually used as packaging bags, which can be used for packaging industrial and agricultural products. Food, etc. In addition, tourism. Woven bags are also used for flood fighting and disaster relief.

A plastic woven sack, also known as a woven Saco bag, is a kind of plastic bag, mainly used for packaging, so what is the material of a plastic woven bag? Generally speaking, there are two kinds of raw materials for woven bags:

1. Polyethylene

Also known as PE plastic, it is a thermoplastic resin polymerized from ethylene. Polyethylene plastic woven bags have good performance, but polyethylene is sensitive to environmental stress, has poor heat and aging resistance, and is less used in China.

The raw material for the production of woven bags is polypropylene, which is extruded and stretched into flat wires, and then woven, knitted, and color-printed to make woven bags. The color of woven bags is generally white or off-white, non-toxic and tasteless, and harmful to the human body. The damage is generally small. Although it is made of various chemical plastics, it is more environmentally friendly and has greater recycling efforts.

It can resist the corrosion of acids, alkalis, salt solutions, and various organic solvents below 80 ° C. It can withstand high temperatures and oxidation. Decomposition, polypropylene is widely used in the production of clothing, blankets and other fiber products, medical equipment, automobiles, bicycles, parts, pipelines, chemical containers, etc., and is also used in food and drug packaging.

White pp woven bag
white color woven bags

2. Polypropylene

Generally, most domestic woven bags are made of polypropylene. Polypropylene is a thermoplastic resin made of polypropylene polymer. It has three configurations: isotactic, tactic, and syndiotactic. Its strength, rigidity, and transparency are better than polyethylene, and if added. Oxidants are used to overcome the shortcomings of poor low-temperature impact resistance and easy aging.

In plastic products, plastic pp woven bag is a flexible material with high breaking strength related to its molecular structure, crystallinity, drawing direction, and additive type. If plastic poly packaging woven sacks are measured in terms of specific power (strength/specific gravity) , it is higher than or closer to metallic materials.

At room temperature, the plastic woven fabric in roll is practically completely immune to moisture erosion, with a water absorption rate of less than 0.01% within 24 hours and low moisture permeability. At low temperatures, it becomes crunchy. Woven bags won’t get moldy.

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