方便袋是我们日常购物普遍的包装物，白色污染的主要构成，主要材料以聚乙烯薄膜为主，也就是我们所说的塑料，所以也叫做塑料袋。下面来讲讲济南方便袋本身的材质使用：

Convenience bags are a common packaging material for our daily shopping, and the main component of white pollution is polyethylene film, which is also known as plastic bags. Let's talk about the material usage of Jinan convenience bags themselves:

常用的食品方便袋多为聚乙烯薄膜制成，该薄膜，故可用于盛装食品。还有一种薄膜为聚氯乙烯制成，聚氯乙烯本身也性，但根据薄膜的用途所加入的添加剂往往是对人体有害的物质，具有一定的毒性。所以这类薄膜及由该薄膜做的方便袋均不宜用来盛装食品。

Commonly used food convenience bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food. Another type of film is made of polyvinyl chloride, which is also non-toxic. However, the additives added according to the purpose of the film are often harmful substances to the human body and have a certain degree of toxicity. Therefore, neither this type of film nor convenience bags made from this film should be used to hold food.

聚乙烯薄膜

Polyethylene film

薄膜呈乳白色，半透明状（几层叠起来观察尤其明显），摸起来较润滑，好像表面上涂有蜡层，用力抖动，声音发脆，遇火易燃，火焰黄色，燃烧时有粘液滴落，并有蜡烛燃烧时的气味。

The film is milky white, semi transparent (especially noticeable when stacked several times), and feels relatively smooth, as if the surface is coated with a wax layer. When shaken forcefully, the sound becomes brittle, flammable when exposed to fire, the flame is yellow, and there are droplets of mucus during combustion, with the odor of candles burning.

聚氯乙烯薄膜

Polyvinyl chloride film

如不加色素，为透明状，摸起来其表面有些发粘，用力抖动，声音低沉，遇火不易燃烧，离火焰即熄，火焰呈绿色。

If not pigmented, it is transparent and feels a bit sticky to the touch. It shakes vigorously and has a low voice, making it difficult to burn when exposed to fire. It extinguishes immediately after leaving the flame, and the flame appears green.

新型材料

new materials 

HDPE

HDPE

高密度聚乙烯（HighDensityPolyethylene，简称为“HDPE”），是一种结晶度高、非极性的热塑性树脂。

High Density Polyethylene (HDPE) is a thermoplastic resin with high crystallinity and non polarity.

新材料的优势

Advantages of New Materials

与传统方便袋相比HDPE拥有着较多的优势：

Compared to traditional convenience bags, HDPE has many advantages:

1、水溶速度可设计选择，完全溶解于水，无污染；

1. The water solubility rate can be designed and selected, completely soluble in water, non-toxic and pollution-free;

2、拉伸度强，张力好；

2. Strong tensile strength and good tension;

3、透明度高，光泽好；

3. High transparency and good gloss;

4、柔软度高，触感好；

4. High softness and good tactile sensation;

5、耐油、耐溶剂性好，可热封、可印刷；

5. Good oil and solvent resistance, suitable for heat sealing and printing;

6、透气系数低，阻气性好；

6. Low permeability coefficient and good air resistance;

7、可加塑料子母扣或自粘胶袋；

7. Can add plastic buckles or self-adhesive bags;

8、抗静电性能优良，不吸尘等。日常购物普遍的包装物，白色污染的主要构成

8. Excellent anti-static performance, no dust collection, etc. Packaging materials commonly used in daily shopping, the main component of white pollution

方便袋的发明给人类生活带来了很大的方便,但是越来越多的人不懂得如何有效的使用,导致了方便袋污染，所以使用时要多加注意，更多事项就来我们网站http://www.sztensun.com咨询吧！

The invention of convenience bags has brought great convenience to human life, but more and more people do not know how to effectively use them environmentally, which has led to pollution of convenience bags. Therefore, it is necessary to pay more attention when using them. For more information, please visit our website http://www.sztensun.com Consult!