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:
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
There will be several "small holes" on the top of the coffee pouch bags, so what is the my
Some things to pay attention to when processing packaging bags
Popular recommendation
Pouch with handle
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
Kraft paper pouch
biodegradable spout pouches Solution
spout pouch bag company
Spout pouch manufacturer
bag in box Vendor
recyclable spout pouches Factory
coffee pouch with valve
pet food bag clip custom
What are the packaging forms for beverages and liquid food?
baby pacifier newborn wholesale.What are the good properties of food packaging bags
The thickness of the food packaging bag is related to food safety.reusable Snack food bag Manufactur
Spout pouch - a new fashion and portable option.aluminium spout pouch sales
Why are water packaging bags not suitable for long-term storage?liquid spout bag
Definition of vacuum packaging
juice bag in box Factory.Classification of liquid packaging bags
Different products have different standard requirements for composite packaging.stand up coffee pouc
How much do you know about packaging bags
The convenience of coffee bags
Plastic particle aluminum foil bag.aluminium foil coffee bag
Application materials of composite packaging bags.eco friendly spout pouches manufacture
Neutral packaging precautions.bag in box for wine
What questions do customers often ask about vacuum bags
The difference between aluminum foil bag and nylon vacuum bag
How to protect food packaging bags specifically.mini Snack food bag manufacturer
Development of Packaging Industry.bag in box packaging
How biodegradable plastic bags can be degraded
How to Prevent Plastic Packaging Bag from Aging
How to identify PE plastic bags? What are the methods?