Tel: +86 188 2689 9458
source:other news release time:2022-12-15 Hits:

The purpose of packaging bags made of different materials is different, but few people can distinguish them. So let's take a look at several materials of packaging bags and their main purposes.
1、 Aluminum foil material
The packaging bag made of aluminum foil has strong air barrier performance, high temperature resistance (121 ℃), low temperature resistance (- 50 ℃) and oil resistance. The purpose of aluminum foil bag is different from that of ordinary packaging bag, which is mainly used for high-temperature cooking and preservation of low-temperature food. However, the aluminum foil packaging bag has no heat sealing property due to its fragile material, easy fracture and poor acid resistance. Therefore, it is generally only used as the middle layer material of bags. For example, the milk packaging bags and quick frozen food packaging bags we drink in our lives will all use aluminum foil.
2、 PET material
PET is also called biaxially stretched polyester film. The packaging bag made of this material has good transparency, strong luster, strength and toughness superior to other materials. It is also not easy to break, non-toxic and tasteless, and has high safety. It can be directly used for food packaging. Therefore, PET is a non-toxic and sterile packaging material for all kinds of food, drugs in daily life. However, its disadvantage is also very obvious, that is, it is not heat-resistant and alkali resistant, and can not be soaked in hot water.
3、 Nylon
Nylon is also called polyamide. The transparency of this material is also very good, and it is heat resistant, oil resistant, puncture resistant. It is also relatively soft to the touch, but it is not moisture resistant and has poor heat sealing performance. Therefore, nylon packaging bags are mostly used to package solid food, as well as some meat products and steamed and boiled food, such as chicken, duck, ribs, etc., which can extend the shelf life of food.
4、 OPP material
OPP, also known as oriented polypropylene, is the most transparent and brittle material in the packaging bag material, and the tension is very small. Most transparent packaging bags used in our life are made of opp materials, which are widely used in clothing, food, printing, cosmetics, printing, paper and other industries.
For delicate foods that may be crushed by the vacuum packaging process (such as potato chips), one alternative is to replace the internal gas with nitrogen. This has the same effect of inhibiting deterioration due to the removal of oxygen.
Read recommendations:
Spout pouch flexibility Processing
spout pouches Production.How to choose a suitable vacuum packaging bag
Popular recommendation
Coffee & Tea pouch
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
tea pouch packing machine price
coffee grinds pouches Factory
recyclable spout pouches custom
spout pouch packaging bags Production
bag in box wine wholesaler
aluminium spout pouch Production
bag in box packaging Factory
What are the inspection standards for food packaging bags?
The printing principle of composite bags!beverage bag manufacturers
Features and uses of textured vacuum bag
Environmental protection of coffee bags
How to choose pet food packaging bags?
How to correctly choose plastic bags for food?
How to choose a coffee bag?
The quality of rice vacuum packaging is very important
Why does the food packaging bag have a odor and how to avoid it?aluminum foil bags for cooking maker
Customized packaging bags according to product characteristics
The types and characteristics of food packaging bags are super detailed!
Traditional testing methods of package sealing
The advantages of choosing aluminum foil packaging bag.aluminum foil bags for grilling Manufacturing
Classification and characteristics of vacuum packaging bags.zipper vacuum sealer bag Manufacturing
Applicable products for sterile liquid packaging bags..stand up pouch with spout packaging
Precautions for food vacuum packaging bag
Pay attention to these points of daily use of plastic bags.Flexible packaging film roll Packaging Ma
Summary of knowledge on using plastic packaging bags.pet food bag projects manufacture
Common frozen food packaging materials.smart food Snack food bag Manufacturing
Do we need to know how to make plastic packaging bags?