Composite bag, I believe this name should not be unfamiliar to you. It is often mentioned in previous articles of Xiaobian, and it can be seen everywhere in our daily life. But Xiaobian believes that most businesses know nothing about composite bags except their names. Take the difference between composite bags and ordinary plastic bags that Xiaobian will talk about today. Do you know the difference between composite bags and ordinary plastic bags? I don't know. Let's look down.

復合袋，為什么要叫復合袋呢？那是因為這類袋子，是由不同的材料復合制作而成。大家都知道普通的塑料袋，比如PE袋，那么很明顯它的制作材料就PE。而復合袋不同，它是由多層復合而成，比如說PE+PO或者PE+其他塑料材料。這種袋子看似只有一層其實，其實這一層可能是由2層或者3層或者4層或者更多層不同的材料復合而成。

Compound bag, why is it called compound bag? That's because these bags are made of different materials. We all know that ordinary plastic bags, such as PE bags, are obviously made of PE. Unlike the composite bag, it is made of multi-layer composite, such as PE + PO or PE + other plastic materials. This kind of bag seems to have only one layer. In fact, this layer may be composed of two or three or four or more layers of different materials.

除了可以由不同的塑料材料組成之外，復合袋也可以復合紙、布和其他包裝材料。比如說下面這款袋子就是PE和牛皮紙復合而成。

In addition to being composed of different plastic materials, composite bags can also be made of paper, cloth and other packaging materials. For example, the following bag is made of PE and kraft paper.

或許這樣說大家比較好理解，現有一個PE材料的塑料袋和一個PO材料的塑料袋，把這兩個塑料袋套在一起使用，這就是復合袋。

It is better to use the plastic bag and the plastic bag together.