Pouches

Pouch Construction

Packaging pouches are manufactured from multi-layer laminate film structures that combine the properties of different polymer and foil substrates. Each layer serves a specific function: outer layers provide printability and abrasion resistance, middle layers contribute barrier properties (moisture, oxygen, UV light), and inner layers provide heat-seal capability. Common laminate structures include PET/PE, PET/foil/PE, nylon/PE, and PET/metalized PET/PE, with the specific construction selected based on product protection requirements.

Pouch Types

• Stand-up pouches feature a bottom gusset that allows the pouch to stand upright on shelves and counters. This format is widely used for snack foods, coffee, pet food, and consumer goods where shelf presence and self-standing display are important.
• Flat pouches (three-side seal) are sealed on three sides with an open top for filling. They lie flat and are used for single-serve sachets, sample packs, and products that do not require upright display.
• Side-gusset pouches have expandable side panels that increase volume capacity while maintaining a compact footprint when empty. They are commonly used for coffee, tea, flour, and granular products.
• Vacuum pouches are designed for vacuum packaging where air is removed before sealing. They are constructed from nylon/PE or other high-barrier laminates that resist puncture under vacuum pressure and maintain seal integrity.

Printing Options

Both digital and flexographic (plate) printing are available.

Barrier Properties

Barrier performance is determined by the laminate structure and is measured by moisture vapor transmission rate (MVTR) and oxygen transmission rate (OTR). Standard PE-based pouches provide moisture resistance suitable for dry goods. Foil-laminate pouches offer the highest barrier protection, blocking virtually all moisture, oxygen, and light transmission. Metalized film pouches provide a mid-range barrier option between clear film and full foil constructions.

Closure and Dispensing Features

• Heat seal provides a permanent tamper-evident closure for single-use applications.
• Zipper reclosable tops allow consumers to open and reseal the pouch multiple times, maintaining product freshness.
• Tear notches are pre-scored or die-cut points that enable easy opening without scissors.
• Hang holes allow pouches to be displayed on retail peg hooks.
• Spouts are available for liquid products, enabling controlled pouring and recapping.

FDA and Food Safety Compliance

Food-grade pouch materials are manufactured from FDA-compliant resins and adhesives. Specific laminate structures are certified for direct food contact, including applications involving fatty, acidic, and high-moisture food products. Retort-grade pouches are engineered to withstand high-temperature sterilization for shelf-stable food packaging.