FLOW PACK / PILLOW PACK

Technology description

Flow pack, also known as pillow pack, is a flexible packaging format designed to wrap individual or grouped products using a film that forms around the product and is sealed longitudinally and transversely.

It is one of the most widely used formats in high-speed automatic lines, especially when efficiency, protection, clean presentation, and consistency in continuous packaging processes are required.

Flow pack can be adapted to solid, portioned, frozen, refrigerated, or ready-to-eat products, depending on the selected structure, sealing system, required barrier, and distribution conditions.

Structure and materials

Flow pack can be manufactured with different laminated, coextruded, or monomaterial structures, depending on the product, shelf life, and machine performance required.

Structures may include materials such as:

•BOPP • CPP • PET • PE • MDO PE • Coated or laminated paper • Metallized films • EVOH for oxygen barrier • Cold seal for heat sensitive products • Inks, adhesives, and varnishes compatible with the final application.

Structures can be developed for:

• Heat sealing • Cold sealing • High-speed packaging • Moisture barrier • Oxygen barrier • Grease or aroma barrier • Light protection, when metallized or pigmented film is used • Good machinability on horizontal or vertical lines • Printed or transparent presentation.

Key performance benefits

High efficiency on automatic packaging lines 
Suitable for individual products or multipacks 
Good control of longitudinal and transverse
sealing 
Compact and clean presentation
Lower material use compared to some rigid
packaging
Good protection against handling, dust, and
surface moisture
Compatible with transparent, printed,
metallized, or high-barrier structures 
Can be adapted to heat sealing or cold seal 
Enables high production speed 
Supports format standardization and
operational control
Strong option for mass-consumption
products

Typical applications

Cereal and protein bars
Chocolates, cookies, and
confectionery
Bakery and pastry products
Individual snacks
Ice cream and frozen products
Portioned cheeses 
Processed meats
Selected fresh products 
Pharmaceutical or nutraceutical products
Personal care
Promotional products or
samples
Food multipacks

Blue Pack Advantage

Blue Pack Solutions develops structures for flow pack and pillow pack by considering the product, packaging speed, sealing type, required barrier, and real distribution and display conditions.

Our approach makes it possible to select the right film for each application, from conventional solutions to high-barrier, cold seal, monomaterial, or recyclable structures, seeking the right balance between operational efficiency, product protection, and commercial presentation. Fichas técnicas 2026