Flexible packaging

Custom Flexible Packaging for Pouches, Bags & Roll Stock

Develop custom flexible packaging around the product, filling method, barrier needs, shelf presentation, and production stage—from printed pouches and bags to equipment-ready roll stock.

Representative P&M branded stand-up, flat-bottom, side-gusset, and spouted pouches with printed rollstock film

Direct answer

Custom flexible packaging includes printed pouches, premade bags, sachets, and roll stock engineered around the product and packing process. A one-stop flexible packaging program coordinates format, film structure, barrier, printing, closures, filling and sealing, testing, secondary packaging, order volume, and delivery; the film alone is not the complete specification.

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What needs to happen next?

No finished specification required. Send a product or reference photo on WhatsApp.

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View more technical specifications 7 sections

Spouted Pouches / Bags

A spouted bag is a complete dispensing system: bag geometry, film structure, spout and cap, filling method, seals, transport, and consumer use must work together. Final suitability depends on the product and process.

  • Corner or top spout position
  • Spout diameter and flow
  • Cap and tamper-evident options
  • Premade-bag filling requirements
  • Product viscosity and fill temperature
  • Leak, drop, weld, and compatibility testing

Retort Pouches / Bags

Retort pouches or bags are hermetically sealed flexible packages developed to withstand a validated thermal process after filling. The product, laminate, sealant, inks, adhesives, fitments, bag geometry, filling conditions, retort cycle, pressure, and cooling process must work as one validated system. A retort-capable material alone does not approve the finished package or process.

Thermal Process Fit

Review the food or product, fill, retort method, scheduled process, pressure, heating conditions, and cooling conditions together.

Barrier Structure

Oxygen, moisture, light, aroma, grease, product chemistry, flex-crack, and shelf-life targets guide the complete laminate.

Seal Integrity

Sealant, seal width, contamination control, headspace, residual air, filling, and bag handling affect hermetic performance.

Testing & Compliance

Food-contact documentation, process-authority requirements, thermal trials, seal evaluation, leak or burst testing, distribution testing, and shelf-life work are assessed as applicable.

  • Shelf-stable meals, soups, and sauces
  • Beans, grains, meat, or seafood products
  • Retort pet food
  • Institutional and emergency foods
  • Product formulation and fill weight
  • Retort equipment and scheduled process

Mono-Material Bags

Mono-material bags are designed predominantly around one compatible polymer family, commonly PE or PP. Inks, coatings, adhesives, zippers, valves, spouts, and barrier components still matter. Mono-material does not automatically mean recyclable in every market.

P&M branded PE mono-material, PP mono-material, industrial compostable, home compostable, and plastic-free paper bags in five different bag formats
Representative material pathways and bag formats; final structures and environmental claims require project-specific evidence.
  • PE-family bag structures
  • PP-family bag structures
  • Barrier and shelf-life targets
  • Seal and filling-line performance
  • Closure and fitment compatibility
  • Market-specific recycling evidence

Eco-Friendly Bags

Industrial compostable bags, home compostable bags, and plastic-free paper bags are different material pathways, not interchangeable claims. The exact bag, components, certification or test scope, disposal conditions, intended market, and claim wording must be confirmed.

  • Industrial compostable bags
  • Home compostable bags
  • Plastic-free paper bags
  • Coatings, inks, adhesives, and sealants
  • Certification and test scope
  • Clear disposal instructions

Closures, valves and pouch accessories

Accessories change how a flexible package opens, recloses, dispenses, vents, hangs, carries, and runs on filling equipment. Availability, material compatibility, placement, tooling, regulatory status, and performance are confirmed for the exact pouch or bag specification.

Standard Press-to-Close Zippers

A familiar reclosable zipper for suitable stand-up, flat-bottom, and related pouch or bag formats.

Child-Resistant Zippers

Special closures designed to restrict access by young children. The complete package and intended claim require applicable testing and documentation.

Hook-and-Loop Closures

A tactile reclosure option, sometimes called a hook-to-hook closure, considered for larger openings, powders, and repeated use.

Easy-Open Zippers

Zipper constructions and opening designs reviewed to reduce opening effort while maintaining the required seal and reclosure performance.

Slider Zippers

A track-and-slider closure that can improve opening and reclosing convenience on compatible bag formats.

Particle-Resistant Zippers

Anti-clogging closure concepts for powders, granules, pet products, and other contents that may interfere with ordinary zipper tracks.

One-Way Degassing Valves

Valve options for coffee and other gas-releasing products, reviewed around product behavior, barrier structure, valve position, and shelf-life target.

Tin Ties

A fold-over reclosure strip commonly considered for coffee and bakery-style bags where the material structure and application support it.

Spouts, Caps & Fitments

Corner or top fitments, caps, flip tops, tamper-evident features, and flow-control options reviewed around viscosity, filling, seal integrity, and use.

Carry Handles

Die-cut or applied handle concepts for larger and heavier flexible packages, subject to load, reinforcement, transport, and drop testing.

Tear Notches & Laser Scoring

Easy-opening features positioned around the seal, zipper, film structure, opening direction, and production tolerances.

Hang Holes & Euro Slots

Round holes, sombrero holes, or Euro-slot display features planned around package weight, seal area, and retail fixtures.

Clear Windows

Transparent product-view areas coordinated with white ink, barrier needs, artwork, light exposure, and the final film structure.

Microperforation & Venting

Controlled venting or perforation patterns considered only where the product respiration, moisture, pressure, or processing need supports them.

Tamper-Evident Features

Seals, tear-away elements, bands, or closure designs that help indicate first opening; the correct solution depends on the package and market requirements.

Print and surface finish

Use print and finish to create hierarchy, tactility, and shelf differentiation while protecting production consistency.

  • Matte and gloss
  • Soft-touch effects
  • Spot effects and selective white ink
  • Metallic and foil-oriented finishes
  • Clear windows and product visibility

Material and performance questions

The right structure depends on oxygen and moisture exposure, oil or aroma, puncture, sealing, storage temperature, shelf-life targets, and end-of-life claims. Specifications and claims are confirmed per project.

Packaging Knowledge Center

Professional guides for this application

Use these practical articles to prepare specifications, identify project risks, and ask better questions before sampling or production.

View 18 more related guides

Frequently asked questions

Can P&M help if we do not know the film structure?

Yes. Start with the product, packaging format, filling process, shelf-life goal, storage conditions, and expected quantity. Structure recommendations require project review.

Do you offer custom finishes and windows?

Finish and window options can be reviewed with the pouch format, print method, material structure, and production quantity.

Are recyclable or compostable structures available?

Material pathways may be reviewed, but suitability and any environmental claim depend on the exact structure, certification or test evidence, product application, and local collection or treatment conditions.

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What temperature can a retort pouch withstand?

There is no single universal temperature or time for every retort pouch. The complete package must be selected and validated against the product, retort equipment, pressure, heating and cooling conditions, and the scheduled process established for the application.

Can retort bags include a spout, zipper, or other fitment?

Potentially, but every component and its bag interface must be designed for the thermal process, product, filling method, seal integrity, handling, and regulatory requirements. Ordinary accessories should not be assumed to be retort compatible.

Does a retort-grade film make the finished package FDA compliant?

No. Food-contact suitability, the complete laminate and components, the finished container, manufacturing controls, and the food processor's scheduled process and regulatory obligations must be assessed for the exact application.

Start with the product and project stage.

Share the format, expected quantity, and what the package needs to do. We’ll organize the next decisions.

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