How to choose the material of packaging bags?

After you’ve chosen the right bag type, how to choose the right material? Next, I will break down several commonly used materials for packaging bags for you, so that you can understand the material characteristics and correctly choose the material suitable for your product.

Different Film

Material Name



Application Scenarios




Surface Printing Film


12 microns (can be customized)

Transparent, bright film, not adhesive.Advantage: It has good air tightness, excellent heat resistance and cold resistance.Disadvantage: Not resistant to strong alkali and prone to static electricity. It can be used for various foods, medicines, cosmetics, daily necessities, and can also be used for packaging in other fields such as industry, agriculture, etc.



18 microns

   transparent film,Higher density than PET.   Advantage: Colorless and odorlessDisadvantage: It has poor heat seal ability and is difficult to seal when used independently.      


Widely used in packaging of various light foods such as instant noodles, fried foods, potato chips, snacks, etc



18 microns

matte, frosted.Moisture-proof, moisture-blocking.   Widely used in packaging of food, medicine, daily necessities, etc.



15 microns

Colorless, transparent filmWear-resistant, tough, chemical-resistant, heat-resistant, cold-resistant, easy to shape, non-toxic, and easy to dye. Applied to products that require vacuuming, such as rice, meat, etc. It can also be used as a reinforcing material for high-temperature cooking products and liquid packaging bags.




Intermediate Layer Composite Film

(Strengthen the bag’s barrier, moisture-proof and other functions.)


12 microns

Good shading and moisture-proof effect.The base material is PET, and aluminum vapor is sprayed on the PET film. Used in biscuits, snacks, nut powders and other products that do not have particularly high environmental requirements.



7 microns

(custom 9 microns)

Non-toxic and odorless.Shading, moisture-proof and oxygen-proof. It has good barrier properties, high temperature resistance, low temperature resistance, oil resistance and softness. It is mostly used in meat products, juices, beverages and other products that have strict packaging requirements.







Inner Heat Sealing Film

(Thickness is determined by the total thickness of the bag.)



 Colorless, transparent, odorless.With good heat seal ability. Different colors can be customized. Bags for high temperature sterilization not exceeding 100 degrees Celsius.Single-layer PE is mostly used in garbage bags, shopping bags, handbags, etc.




 high transparency , good heat resistance.Good moisture and odor barrier properties, no need to package liquids, and no need for sterilization.  No temperature requirementsIt is mostly used for packaging and outer packaging of light products such as food and commodities.




Good heat resistance, acid resistance, alkali resistance, and excellent grease resistance.

Bags for high temperatures can meet the sterilization treatment of 100-135℃.

Used for hot filling, retort bags, aseptic packaging, etc.



Post time: Mar-11-2024

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