现在，在不少小饭店或露天美食摊点，为了预防共用餐具的不卫生，购物袋厂家往往会在饭碗上套一个生物降解塑料袋，这样不仅卫生、节水，而且还可节省洗碗的人力成本。

Now, in many small restaurants or open-air food stalls, in order to prevent the unsanitary sharing of tableware, shopping bag manufacturers often put a biodegradable plastic bag on their rice bowl, which is not only hygienic and water-saving, but also saves the labor cost of washing dishes.

在生活中，我们很多人为了贪图方便，省时省事，也会经常利用塑料背心袋包装熟食，事实上，使用生物降解塑料袋并不代表就健康安全卫生了，如果使用不当，往往一时方便却可能会给身体带来永久的健康隐患。比如，利用聚氯乙烯材质制作的塑料背心袋因为含有塑化剂就不能用作熟食包装。出口塑料袋塑化剂也称增塑剂，在塑料制品加工中如果添加塑化剂，可以使产品柔韧性增强，变得易于加工。塑化剂被广泛应用于塑料、橡胶、粘合剂、纤维素、树脂、医疗器械、电缆等产品生产中。塑化剂的产品种类有百余种之多，普遍使用的是邻苯二甲酸酯类的化合物。微量塑化剂对人体健康影响不大，但是，体内若摄入塑化剂过多，将会影响到人体内分泌、生殖功能以及身体的正常生长发育等。

In life, many of us often use plastic vest bags to pack cooked food in order to be convenient and save time and trouble. In fact, the use of biodegradable plastic bags does not mean health, safety and hygiene. If they are not used properly, they are often convenient for a while, but they may bring permanent health hazards to the body. For example, plastic vest bags made of PVC can not be used as cooked food packaging because they contain plasticizer. Plasticizer for export plastic bags is also called plasticizer. If plasticizer is added in the processing of plastic products, the flexibility of products can be enhanced and easy to process. Plasticizers are widely used in the production of plastics, rubber, adhesives, cellulose, resins, medical devices, cables and other products. There are more than 100 kinds of plasticizers, and phthalate esters are widely used. Micro plasticizer has little effect on human health, but if the body takes too much plasticizer, it will affect human endocrine, reproductive function and normal growth and development of the body.

日常生活中常见的生物降解塑料袋既有聚乙烯材质的，也有聚氯乙烯材质的。利用聚乙烯材质制作的食品级的塑料背心袋可以用来包装低温熟食，而聚氯乙烯材质的生物降解塑料袋，在加工时，由于添加了大量的增塑剂和稳定剂，若用来包装熟食，塑料中所添加的增塑剂等不利于人体健康的有害成分就会溶解或挥发出来，对所包装食物造成污染，可见，食用味美的方便美食，有选择地使用健康安全的塑料背心袋，做好塑化剂的预防是多么地重要。

Biodegradable plastic bags commonly used in daily life are made of both polyethylene and polyvinyl chloride. The food grade plastic vest bag made of polyethylene can be used to package low-temperature cooked food, while the biodegradable plastic bag made of polyvinyl chloride will dissolve or volatilize if it is used to package cooked food due to the addition of a large number of plasticizers and stabilizers, It pollutes the packaged food. It can be seen how important it is to eat delicious and convenient food, selectively use healthy and safe plastic vest bags, and prevent plasticizers.

在，人们用生物降解塑料袋盛装食物已习以为常，事实上，不是所有的生物降解塑料袋都可用来盛装食物的。通常使用的生物降解塑料袋的制作材质有如下几种：高压聚乙烯、低压聚乙烯、聚丙烯、聚氯乙烯以及再生材料等。高压聚乙烯塑料袋可用作糕点、糖果、炒货、饼干、奶粉、盐、茶叶等食品包装以及纤维品和日化用品包装；低压聚乙烯塑料袋通常用作保鲜袋、方便袋、购物袋、手提袋、背心袋以及垃圾袋、菌种袋等，而不用于熟食包装；聚丙烯塑料袋主要用于包装纺织品、针棉品、服装、衬衫等，也不能用于熟食包装；聚氯乙烯塑料袋多用于箱包、针棉品包装、化妆品包装等，更不能使用于熟食包装。

In, people are used to holding food in biodegradable plastic bags. In fact, not all biodegradable plastic bags can be used to hold food. The commonly used biodegradable plastic bags are made of the following materials: high pressure polyethylene, low pressure polyethylene, polypropylene, polyvinyl chloride and recycled materials. High pressure polyethylene plastic bags can be used for food packaging such as cakes, candy, fried goods, biscuits, milk powder, salt and tea, as well as fiber and daily chemical products; Low pressure polyethylene plastic bags are usually used as fresh-keeping bags, convenience bags, shopping bags, handbags, vest bags, garbage bags, strain bags, etc., rather than cooked food packaging; Polypropylene plastic bags are mainly used for packaging textiles, cotton products, clothing, shirts, etc., and can not be used for cooked food packaging; PVC plastic bags are mostly used for luggage, needle cotton products packaging, cosmetics packaging, etc., and can not be used for cooked food packaging.

市场上通行的塑料袋除了以上四种以外，利用再生材料生产的五颜六色市场方便袋也非常多，用再生材料制作的塑料袋尽管看起来鲜艳好看，由于是使用废旧塑料的回收料制作，更不能用来包装食品。

In addition to the above four kinds of plastic bags commonly used in the market, there are also many colorful market convenience bags made of recycled materials. Although the plastic bags made of recycled materials look bright and beautiful, they can not be used to package food because they are made of recycled waste plastics.

消费者在日常生活中，使用生物降解塑料袋包装熟食时，除了不用容易辨别的鲜艳的再生塑料袋以外，其他不易辨别的一定要看塑料背心袋的外观是否印有“食品用”的标志，通常这个标志应该在包装袋正面的比较醒目的位置。

In daily life, when consumers use biodegradable plastic bags to package cooked food, in addition to the bright recycled plastic bags that are not easy to identify, other things that are not easy to identify must depend on whether the appearance of the plastic vest bag is printed with the sign of "for food". Usually, this sign should be in a more eye-catching position on the front of the packaging bag.