The raw materials of container bag are PP (polypropylene), PE (polyethylene) composition, container bag with lightweight, good electrical insulation, good corrosion resistance, easy to process and shape characteristics. container bag has some of the general characteristics of PP as well as its own characteristics. As follows:
1, qualitative light,
PP is usually relatively light, and the density of PP woven bags is about 0.0-9.98 grams per cubic centimeter. The commonly used plastic braid, if not filled, is equal to the density of the plastic. The density of plastic used for weaving is 0.0-9.91 grams per cubic centimeter. Usually, the fabric is lighter than water.

1. High fracture strength
   Plastic woven fabric is a kind of flexible material with high fracture strength in plastic products, which is related to its molecular structure, the degree of crystallization, draft orientation, etc., and also related to the type of additives. If the specific strength (strength/specific gravity) is used to measure the plastic woven fabric, it is higher than or close to the metal material.
2. Good chemical corrosion resistance
   Plastic woven fabric has good corrosion resistance to inorganic and organic matter, below 110 degrees Celsius. It has no influence on it for a long time. It has strong chemical stability to solvents, grease and so on. As the temperature rises, carbon tetrachloride, xylene, turpentine, etc., will distend on it. Fuming nitric acid, fuming sulfuric acid, halogen elements and other strong oxides will oxidize it, and it has better corrosion resistance to the strong base and common acids.
3. Good wear resistance
   The friction coefficient between pure plastic woven fabric is only 0. Around 12, similar to nylon, to some extent, the plastic woven fabric and its objects with friction, with lubrication.
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5. Good electrical insulation
   Pure plastic woven fabric is an excellent electrical insulator. Since it does not absorb moisture and is not affected by moisture in the air, the breakdown voltage is also high, and its dielectric constant is 2.2-2.6, its volume resistance is very high, plastic woven good insulation, does not mean that it is used as an insulating material.
6. Environmental resistance
   At room temperature, plastic woven cloth is actually completely free from moisture erosion, water absorption within 24 hours is less than 0.01%, water vapor penetration is also very low, low temperature, it becomes brittle, brittle crack. Plastic braids do not mold.
7. Poor aging resistance
   The anti-aging ability of plastic woven bag is poor, especially the PP woven bag is lower than polyethylene woven bag. Its aging problem is mainly thermal itching aging, photodegradation. The poor anti-aging ability of plastic woven fabric is one of its main defects, which affects the service life and application field of woven bags.