Packaging bag

Abstract

The invention relates to the field of packaging materials, and particularly discloses a packaging bag which is formed by blow molding of a thermoplastic composite material. The thermoplastic composite material comprises the following components in parts by mass: 15-20 parts of low density polyethylene; 65 to 70 parts of linear low density polyethylene; 5-8 parts of metallocene polyethylene; 6-9 parts of chlorinated polyethylene; 4-6 parts of chlorosulfonated polyethylene; 1-4 parts of an anti-blocking agent; and 1-3 parts of an antistatic agent. The method has the advantages that the cost is controlled, and meanwhile the physical performance of the packaging bag is improved.

Description

packaging bag technical field [0001] The present invention relates to the field of packaging materials, in particular to a packaging bag. Background technique Packaging bag is a kind of packaging material, which can better protect the product from being polluted, so that the product is kept clean, for In order to reduce weight and floor space, the packaging bag is usually made of plastic film to reduce the waste of space. [0003] The thickness of the plastic film is relatively thin, generally 30 μm-150 μm, therefore, the strength of the plastic film is relatively low, Need to improve the physical properties of the clinker film to improve the durability of the packaging bag and reduce the pollution of packaging due to bag breakage The condition of the product inside the bag. Packaging bags are mostly disposable products, therefore, the cost of packaging bags needs to be controlled, and polyethylene plastics are often used. However, the physical properties of genera...

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Problems solved by technology

[0003] Due to the thin thickness of the plastic film, generally 30μm-150μm, the strength of the plastic film will be low. It is necessary to improve the physical properties of the clinker film to improve the durability of the packaging bag and reduce the pollution of the packaging bag due to damage to the packaging bag. The condition of the product in

[0004] Most of the packaging bags are disposable items, therefore, the cost of packaging bags needs to be controlled, and they are often made of polyethylene plastic, but the physical properties of general polyethylene plastic are relatively general, and the packaging bags made are easy to wear and tear, resulting in the inside of the packaging bag Products are polluted, and if high-performance plastics are used to prepare packaging bags such as engineering plastics, the cost of packaging bags will be high, which does not meet the economic value. Therefore, there is still room for improvement

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