If a single film is made from a certain type of film, then laminated film bags are made from many different types of film. In the current packaging industry, laminated film bags with many outstanding advantages such as durability and high aesthetics are the top choice of many companies and businesses. In this article, let’s learn about laminated film bags to better understand the structure, classification, and application of this product!

What is a laminated film bag?

A laminated film bag, also known as a composite film bag, is a type of packaging with a film that is combined from many different materials, creating a product with outstanding advantages. Depending on the purpose of use or product, many types of materials can be combined together to create a laminated film bag.

Laminated Packaging Film Structure

To better understand laminated pouches, let’s explore the characteristics of their structure. Manufacturers use different materials based on their roles and properties to create structural layers, bonding layers, and so on.

The characteristics of each layer in laminated packaging film are as follows:

• Structural Layer: Ensures mechanical properties, making the packaging more durable.
• Bonding Layers: These are thermoplastic adhesive layers used to combine different materials.
• Barrier Layers: Enhance special requirements for the packaging, such as preserving aroma. Materials like PA and PET are typically used for this layer.
• Heat Sealant Layers: Often made of PE or LLDPE blends.

Types and Structure of Laminated Film Bag

Laminated film pouches come in many different types, depending on their materials and components. Each type has distinct properties and applications for specific industries.

Common raw materials used for laminated packaging films include OPP, PET, PA, CPP, AL, MPET, and more. When combined, they create a 2- to 3-layer laminated film pouch structure.

Below are some types of laminated film pouches you might want to learn about:

Laminated Film Type	Composition	Material	Structure and Properties
OPP/CPP  laminated Film	– 30% OPP (outside for printing) – 70% CPP with 30% PE(inside)	– Max thickness: 55 mic Gravure printing  – Outer OPP for printing  – Inner CPP for edge welding and  increasing the toughness and thickness of the bag	Mainly use back-fold packaging – bottom sealing, 3-side seal
PA/PE Laminated Film	– PA (outside): 15 Mic – PE (inside): 30; 50;…	Gravure printing – PA outside for printing, heat-resistant, does not expand when vacuumed – PE adhesive seals the bag and prevents the ink from touching the product, increasing flexibility and toughness
OPP/MCPP  Laminated Film	– OPP (outside): 30 Mic – MCPP (inside): 20; 30Mic (M + CPP is 1 layer)	– OPP plastic film layer (glossy, matte) average thickness 20; 30 Mic, width 0.6-1.1m, roll length 4000: beautiful printing – M (metalized) coating layer is a bright white silver alloy, average thickness 20-30 Mic: Blocks light, keeps odor, hygienic – CPP plastic film layer in roll form, thickness 20-30 Mic; width 0.6-1.1m; length 4000m. Use in the same light and temperature to weld the edges and bottom, increase bag thickness	– MCPP film is brighter, clearer, thinner than MPET/PE (PE film) – AL film bent backwards will have cracks and harden
OPP/AL/PE  Laminated Film	– OPP (outside) – AL (middle) – PE (inside)	– OPP for printing – AL prevents sunlight, strengthens physical properties – PE is used for welding edges and bottoms, increasing product thickness as required (very thick)	– Tea bags, coffee,… – Pesticides, veterinary drugs
PET/MPET/PE Laminated Film	– PET (outer) – MPET (middle) – PE (inner)	– PET: printing, odor prevention, anti-permeation – MPET: blocking sunlight, strengthening the physical properties of the Product – PE is used to weld the edges and bottom, increasing the thickness of the Product as required (very thick)
PET/AL/PE Laminated Film	– PET (outer) – AL (middle) – PE (inner)	– PET: printing, odor prevention, anti-permeation – AL prevents sunlight, physical reinforcement – PE is used to weld edges and bottoms, increase product thickness as required (very thick)

 

Outstanding advantages of laminated film bags

Laminated film bags made from different materials are rated higher than conventional single-layer film bags. Some of the main advantages of laminated film bags are listed below.

•  High durability: Laminated film bags are waterproof, anti-vehicle, ensuring the goods inside during transportation and storage
•  Optimal protection of goods: The ability to block air, moisture, light, bacteria, etc., external agents helps laminated film bags to optimally protect goods, minimizing damage and loss
•  High aesthetics: Laminated film bags have a smooth, beautiful surface, helping to print images and information sharp and vivid
•  Saving costs, protecting the environment: Using laminated film bags is considered a solution to save materials, costs and protect the environment. Bags can be recycled, decomposed easily, minimizing negative impacts on the ecosystem.

 

Applications of laminated film bags

Laminated film bags are widely used in the packaging industry. Depending on the structure and characteristics of each type of laminated film bag, people will use them for different purposes. Below are some common applications of laminated film bags:

•  Confectionery packaging: With the advantage of good moisture resistance, laminated film bags are widely used in the confectionery industry
•  Packaging for milk tea and coffee: Products retain good aroma and luxurious beauty
•  Cosmetic packaging: With typical properties, laminated film bags are also widely used in cosmetic packaging
•  Veterinary medicine packaging: Usually made of laminated films such as PET/MPET…
•  Processed food packaging: Good gas and moisture barrier
•  Aquatic product packaging: Good cold resistance, effective deodorization and oxygen removal

Supplier and Quality of laminated film bags 

Given their many outstanding advantages and wide-ranging applications, laminated packaging bags are becoming the top choice for confectionery and food manufacturing companies. This has led to a significant increase in demand for these products. Minh Sang Packaging with more than 10 years of experience in the field of manufacturing all kinds of packaging is a reliable address for you to choose when you need laminated film bags.

Minh Sang Packaging specializes in providing packaging types such as recycled bags, PE bags, PP bags and laminated film bags. Customers can contact Minh Sang for more detailed advice on products and production plans suitable for their requirements, purposes and budgets.

Why should you choose filter bags at Minh Sang Packaging?

•  Advanced, modern production technology, quickly responding to large orders
•  Dedicated consultation, helping customers choose the most suitable packaging solution
•  Quality products are always put first
•  Professional production process, products are clearly defined before leaving the factory
•  Diversified products and designs to meet different customer needs
•  Reasonable prices, many attractive promotions
•  Good customer care service, clear warranty policy

How much does laminated packaging bags cost?

The price of laminated packaging bags depends on several factors, including the type of bag, the materials used, the quantity ordered, and the design.

For detailed consultation and a specific quote, please contact Minh Sang Packaging via hotline: 028 3983 2290.

We hope this information about laminated packaging bags has helped you identify the right type of bag for your needs.