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:
Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch
How did the bag pattern come from?
What are the abilities of composite food bags.food packaging pouch suppliers
Popular recommendation
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
Spout pouch
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
zip lock bag for coffee distributors
wine bag in box manufacture
eco friendly spout pouches custom
aluminum foil bags for cooking custom
spout pouch machine manufacturer
eco friendly spout pouches price
printed snack food bags distributors
The origin of aluminum foil bags!aluminum foil bags for cooking distributors
What is a coffee bag
Retort bags, freeze-resistant vacuum bags
What are the packaging machinery and equipment?
Plastic packaging bag manufacturers are here to talk to you about the precautions for using plastic
Convenient choice: Environmentally friendly liquid portable bag
What is the future development trend of the spout pouch bag?
Introduction to the functions, features and usage of spout bags
Why does the food packaging bag have a odor and how to avoid it?aluminum foil bags for cooking maker
Packaging has higher hygiene requirements for food bags.smart food snack bags distributors
Production precautions for aluminum foil bags.disposable aluminum foil bag
The important role played by vacuum bags.Vacuum zipper bag
digital printing flexible packaging distributors.What are the uses of composite film packaging bags
Difficulties in Aluminum Foil Bag Packaging Technology.Aluminum foil bag company
Composite packaging film printing material affects the quality of packaging.stand up spout pouch man
bag in box packaging distributors.Introduction to the process of aluminum plating bags and aluminum
Tell you the reasons and solutions for the deformation of the food packaging bag.PET food bag wholes
How long can the food in the vacuum food packaging bag be kept at room temperature?
Flexible Packaging's product characteristics
The dairy industry holds the "national tide style", choosing the right packaging is equiva