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:
wholesale coffee bags with valve
Bag-In-Box: Revolutionizing Liquid Packaging with Innovative Paper Bags
What is the integrity and advantage of PET FOOD BAG?petco free dog food bag maker
Popular recommendation
Coffee & Tea pouch
PET food bag
Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch
bag in box wine wholesaler
refillable spout pouches price
spout pouch machine wholesale
aluminium spout pouch custom
pouch with handle Factory
super pouch maker
Spout pouch price
What is the difference between plastic packaging bags and paper bags
What are the packaging forms for beverages and liquid food?
Juice Pouch Bags: The Ultimate Guide
sideguesst bag for coffee bag distributors.The number of packaging layers of moon cakes and Zongzi s
What is the difference between vacuum bag and aluminum foil bag
PET food bag wholesaler.What requirements should food packaging bags meet
Sterilization classification and principle of sterile bags
Definition of vacuum packaging
Food design graphics analysis.
How to use the air hole on the coffee bag
Packaging and processing technology of bag in box.bag in box distributors
Vacuum bags have those versatility
What are the advantages of vacuum packaging bags for food packaging
The development trend of domestic food packaging.printed snack food bags distributors
The use of active box in bag packaging technology will become a trend.gusset aluminum foil bag
The main core research content of the bag industry in liquid boxes
What is smart packaging?
Analysis on the selection of food packaging bags.pet travel food bag Manufacturing.petco free dog fo
What kinds of bags are there
Dry test compound plastic flexible packaging raw materials have what advantages