Packaging bags are closely related to our life. With the rise of productivity, there is an increasing demand for products and more varieties. What should we pay attention to when choosing packaging bags?

1.食品用包装袋的外部包装有标识，主要是厂名、厂址、产品名称，并在明显处注明食品用字样，产品出厂后均附有产品检验合格证。

1. The external packaging of the food packaging bag is marked, mainly including the factory name, factory address and product name, and the words for food are marked in the obvious place. The products are attached with the product inspection certificate after leaving the factory.

2.食品用包装袋出厂时是无味的，有特殊气味的产品不能用于食品行业。

2. Food packaging bags are tasteless when leaving the factory, and products with special smell cannot be used in the food industry.

3.有颜色的包装袋不能用于食品，比如黑色或者是暗红色，归根绝地是因颜色过深的包装袋是用回收再生材料制作的。

3. Colored bags cannot be used for food, such as black or dark red. In the final analysis, the Jedi is because the bags with too dark color are made of recycled materials.

4.选用不含有镀层的材料。现代包装设计中，为了使产品更加耐用、美观，很多企业选择使用添加大量的镀层材料，种种行为不仅给产品材料回收带来了困难，而且大部分涂料本身就具有毒性，若是食用会对人体产生危害。另外涂、镀工艺过程也给环境带来污染，涂料挥发毒性溶剂气体，电镀时产生含铬等重金属的废液、废渣污染等。

4. Select materials without coating. In modern packaging design, in order to make products more durable and beautiful, many enterprises choose to use and add a large number of coating materials. Various behaviors not only bring difficulties to product material recycling, but also most of the coatings themselves are toxic, which will be harmful to human body if eaten. In addition, the coating and plating process also brings pollution to the environment. The coating volatilizes toxic solvent gas, and the waste liquid and residue containing chromium and other heavy metals are polluted during electroplating.

5.由于食品用包装袋不易降解的特性，易会造成环境污染，因此，采购食品时选用绿色包装材料，保护我们生活的家园是每个人应尽的责任。

5. Due to the non degradable characteristics of food packaging bags, it is easy to cause environmental pollution. Therefore, it is everyone's responsibility to select green packaging materials when purchasing food and protect our home.