The raw materials of garbage bags are basically new materials, namely PE. Garbage bags are generally made of three materials: high-pressure polyethylene (also called low-density polyethylene (LDPE)), low-pressure polyethylene (also called high-density polyethylene (HDPE)) and linear high-pressure material (also called linear low-density polyethylene (LLDPE)).
There are also some garbage bag manufacturers who use semi-new materials as raw materials to make garbage bags. The semi-new material here refers to the brand-new unused and unpolluted film material after PE blow molding, which is used as the main raw material of garbage bag after granulation.
However, some garbage bag manufacturers use recycled materials to produce garbage bags, which is impressive, probably black garbage bags, with strong flavor, poor toughness and easy to break without pulling.
Second, the difference between garbage bags and ordinary plastic bags
Although garbage bags also belong to plastic bags, their uses, sizes, styles, raw materials and production standards are different.
1, different uses
Plastic bags are mainly used to hold articles, including clothes, snacks with outer packaging, vegetables, fruits, stationery and other commodities sold in supermarkets. Garbage bags are mainly used to hold garbage. Of course, used plastic bags can also be used as garbage bags when they are reused. )
2. Different sizes
The main function of plastic bags is to be portable. Considering the strength of the human arm, the maximum size is about 40*60cm, and the size generally includes the hand grip, excluding the hem. Garbage bags are often used in conjunction with trash cans. From 10 liters to 240 liters, even larger trash cans can be used with matching garbage bags. Therefore, the size of garbage bags is also commonly used 120* 140cm.
3. Different styles
Plastic bags are designed to be easy to move, generally vest-type, four-finger type and portable type, and basically have no flat mouth; Although garbage bags have to be moved, they are not so limited. Most of them are portable and flat.
4. Different raw materials.
Plastic bags are basically brand-new PE materials. Although garbage bags also have PE materials, many manufacturers will add recycled materials or fillers.
5. Different production standards
The state has strict regulations on the production of plastic bags, for example, the standard thickness requires 2.5 wires, which is non-toxic and tasteless. The standard thickness of garbage bags is 1.0 silk.
In short, the production of plastic bags is more demanding than garbage bags, and it is best to use "universal" raw materials.