Plastic packaging bags, as a common packaging material, have many types and functions. The following is an introduction to the main types and functions of plastic packaging bags brought to you by plastic packaging bag manufacturers.

一、分类

1、 Classification

塑料袋：塑料袋是常见的塑料包装袋，它可以分为高压和低压塑料袋两种。高压塑料袋又分为平口袋、自封袋、背封袋等，而低压塑料袋则常用于购物袋等。

Plastic bags: Plastic bags are the most common types of plastic packaging bags, which can be divided into high-pressure and low-pressure plastic bags. High pressure plastic bags are also divided into flat bags, self sealing bags, back sealing bags, etc., while low pressure plastic bags are commonly used in supermarket shopping bags, etc.

食品袋：食品袋是专门用于包装食品的塑料袋。根据不同的需求，食品袋可以分为冷冻食品袋、真空食品袋、热封食品袋等。这些袋子具有保鲜、防潮、防氧化等功能，确保食品的品质和。

Food bags: Food bags are plastic bags specifically used for packaging food. According to different needs, food bags can be divided into frozen food bags, vacuum food bags, heat sealed food bags, etc. These bags have functions such as preservation, moisture resistance, and oxidation resistance, ensuring the quality and safety of food.

医药袋：医药袋是专门用于包装药品的塑料袋。由于药品对环境的要求较高，医药袋通常具有防潮、防光、密封等功能，以确保药品的质量和有效期。

Medical bags: Medical bags are plastic bags specifically used for packaging drugs. Due to the high environmental requirements of drugs, medical bags usually have functions such as moisture resistance, light resistance, and sealing to ensure the quality and validity of drugs.

化妆品袋：化妆品袋是专门用于包装化妆品的塑料袋。化妆品袋常用材料有OPP薄膜、PE薄膜等，可以防止化妆品泄漏和变质。

Cosmetic bags: Cosmetic bags are plastic bags specifically designed for packaging cosmetics. Commonly used materials for cosmetic bags include OPP film, PE film, etc., which can prevent leakage and deterioration of cosmetics.

服装袋：服装袋是专门用于包装衣物的塑料袋。它通常具有防湿、防尘、防褶等功能，以保护衣物的质量和外观。

Clothing bag: Clothing bag is a plastic bag specifically used for packaging clothing. It usually has functions such as moisture resistance, dust prevention, and crease resistance to protect the quality and appearance of clothing.

其他袋：还有一些特殊的塑料袋，如垃圾袋、化工袋、礼品袋等，它们都具有各自独特的功能和用途。

Other bags: There are also some special plastic bags, such as garbage bags, chemical bags, gift bags, etc., all of which have their own unique functions and purposes.

二、功能

2、 Function

保护功能：塑料包装袋通常具有一定的抗震、抗压性能，可以有效保护物品免受外界的挤压和撞击。

Protective function: Plastic packaging bags usually have certain seismic and compressive properties, which can effectively protect items from external compression and impact.

防潮功能：许多塑料包装袋都具有防潮功能，可以有效防止物品受潮、变质。例如，食品袋、药品袋等常采用具有一定阻隔性能的材料制成，以保持食品和药品的新鲜和有效性。

Moisture-proof function: Many plastic packaging bags have moisture-proof function, which can effectively prevent items from getting damp and deteriorating. For example, food and drug bags are often made of materials with certain barrier properties to maintain the freshness and effectiveness of food and drugs.

防氧化功能：一些塑料包装袋具有防氧化的特性，可以保护物品不受氧气的影响而失去质量。尤其对于一些易氧化或易挥发的产品，如药品、化妆品等，防氧化功能尤为重要。

Anti oxidation function: Some plastic packaging bags have anti oxidation properties, which can protect items from the influence of oxygen and loss of quality. Especially for some easily oxidized or volatile products, such as drugs, cosmetics, etc., the anti oxidation function is particularly important.

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