How much do you know about the materials used in mask packaging bags?
Many customers don't know what material to customize when ordering mask bags, When they come for consultation, they only know that there is such a type of bag material, but they don't know what kind of material it is or what it's made of. Take aluminum foil bags for example; everyone knows this bag is called an aluminum foil bag, but most people don't really know what an aluminum foil bag is, or even what color it is. They also don't know that even though it's called an aluminum foil bag, it's not just aluminum foil that can be used to make the bag. Below, let professional flexible packaging manufacturer Shunxingyuan Packaging give a brief introduction.

First type: HDPE/High-density polyethylene/Low-pressure polyethylene/Low-pressure film
This is the most common material, which is the kind of shopping bag we often see in supermarkets; it's made of HDPE. This material can be formed into a bag on its own and is a relatively common and inexpensive material on the market - PO bag. This material is relatively brittle, harder, has low elasticity, and makes a crisp sound when rubbed.

Second type: LDPE/Low-density polyethylene/High-pressure polyethylene/High-pressure film
Transparent texture, softer, good toughness, good transparency, smooth feel. The thicker the material, the harder it is, and the greater the stretchability. This material can also be formed into a bag independently, and like PO bags, it is a relatively common and inexpensive material.

Third type: OPP/Oriented polypropylene
This material is the most brittle and has the highest transparency. It has insufficient tensile strength, practically no tensile strength, and is most prone to breaking at the opening. It is also the most likely to fade during printing, making it very difficult to print. It needs to be printed and left for a period before cutting into bags. 。

Fourth type: CPP/Cast polypropylene/Unstretched polypropylene
This material has high transparency, higher hardness than PE film, and is clearer. It is often used as a base film for composite materials. It is often compounded with other films to form bags and is a good composite film.

Fifth type: PET/Polyethylene terephthalate
This material also has very good transparency, with strength and toughness superior to polystyrene and polyvinyl chloride. It is not easily broken and has a smooth, glossy surface. It is also one of the commonly used composite materials.

The sixth type: Aluminum foil/AL
Aluminum foil is a very thin sheet formed from high-purity aluminum after multiple rolling processes, and it is an excellent thermal conductor and light blocker. Mechanical strength is good, lightweight, no heat adhesion, has metallic luster, good light-shielding properties, strong light reflection capability, not easily corroded, good barrier properties, moisture-proof and waterproof, strong air-tightness, and good aroma retention. It has metallic luster, high gas barrier properties, and low adhesion viscosity, and is prone to aluminum layer transfer after composite processing.

Many of the materials mentioned above are transparent, and generally, it's hard to distinguish their differences with the naked eye. Only by understanding their properties can one know their specific applications.




Dongguan Shunxingyuan Packaging Products Co., Ltd. has focused on the flexible packaging industry for 19 years. Its products are widely used in apparel, food, chemical, home gifts, hardware electronics, and other industries. With advanced production equipment and rich experience in packaging bag production, the company provides a one-stop production service, from plastic bag design to plate making and printing, raw material compounding, and bag cutting and packaging. Our customers are located in many countries worldwide, and ADIDAS, AAPE, IZZUE, IT, and BRAINERD are some of the famous brands we collaborate with. The company mainly produces various packaging products such as bone zipper bags, hook bags, button bags, adhesive bags, frosted bags, flat bags, center seal bags, three-side seal bags, eight-side seal bags, gusset bags, vacuum bags, retort pouches, roll film, aluminum foil bags, stand-up pouches, composite packaging bags, kraft paper bags, and bubble bags. To date, Shunxingyuan Packaging has provided many customers with exquisitely crafted mask bags, such as KN95 mask bags, disposable mask bags, medical mask bags, anti-haze mask bags, transparent mask bags, and foldable protective mask bags. For different customer needs, Shunxingyuan Packaging also offers many types of mask bags for you to choose from. Welcome to customize! Hotline: 135-4929-7179

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