The range of plastic products is very wide, especially plastic bags, which are closely related to our daily life. Among all kinds of plastic bags, vest bags (vest bags) are common and used by us. No matter shopping malls, vegetable markets or community convenience stores, they are widely used in plastic vest bags. Specifically, what are the application scopes of such bags?

1、大型购物袋。当我们在大的和购物的时候，在结账的时候基本都会使用到背心式购物袋袋，大型购物场所的背心塑料袋，其材质通常为可降解或者国标加厚型，质量是属于中上乘。购物袋通常分为大中小三种不同尺寸，可以根据消费者购买商品的多少来选择合适大小的塑料袋，而这类袋子是要收费的，在0.1元~0.5元之间。一般情况下，购物背心袋上面都会印刷精心设计的图案，的logo、地址以及宣传语等等。

1. Shopping bags in supermarkets. When we shop in large shopping malls and supermarkets, we usually use vest type shopping bags when checking out. The vest plastic bags in large shopping places are usually made of degradable or thickened national standard materials, and the quality is medium to high. Supermarket shopping bags are usually divided into three different sizes: large, medium and small. You can choose the appropriate size of plastic bags according to the number of goods purchased by consumers, and such bags are charged, ranging from 0.1 yuan to 0.5 yuan. Under normal circumstances, supermarket shopping vest bags will be printed with well-designed patterns, logo, address and slogan of the mall, etc.

2、市场通用袋。在以农贸市场为主所使用的背心塑料袋，都是使用普通材质所制作而成的，这些袋子偏薄，颜色种类多，其质量是属于低下的。

2. General bag for the market. The vest plastic bags mainly used in farmers' markets are made of ordinary materials. These bags are thin and have many kinds of colors, so their quality is low.

3、广告类背心袋。经常有房地产公司、企事业单位定做背心袋作为广告礼品派发，从而达到营销的目的。这类袋子要求质量高，印刷精美，方便大众，亦夺人眼球，一举两得。

3. Advertising vest bag. There are often real estate companies, enterprises and institutions customized vest bags as advertising gifts, so as to achieve the purpose of marketing. This kind of bag requires high quality, exquisite printing, convenient for the public and eye-catching, killing two birds with one stone.