1, soft and hard are different:
The high-pressure film plastic packaging bag is soft and shiny, while the low-pressure film convenient bag is hard. The low-pressure membrane convenience bag with the same thickness is thicker than the high-pressure membrane convenience bag.
2. Different carrying capacity:
The bearing capacity of high-pressure membrane convenient bag is not as good as that of low-pressure membrane convenient bag. Generally, high-pressure film is used for clothing packaging bags, and supermarket shopping bags are all low-pressure film plastics.
Extended data:
Uses of high-pressure polyethylene plastic bags:
The invention of plastic bags has brought great convenience to human life, but more and more people don't know how to use them effectively, which leads to the globalization of plastic bag pollution.
Compared with traditional plastic bags, environmental protection bags have the following advantages:
1, water solubility can be designed and selected, completely soluble in water, non-toxic and pollution-free.
2. Strong tensile strength and good tension.
3, high transparency and good luster.
4. High softness and good hand feeling.
5. Good oil resistance, solvent resistance, heat sealing and printability.
6. Low permeability coefficient and good gas barrier property.
7. Plastic snap buttons or adhesive bags can be added.
8. Excellent antistatic performance, no vacuuming, etc.
9. It can be degraded by water, air, sunlight and biology. Generally, it can be decomposed into harmless substances in a month or so.