Flat Barrier Bags
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Flat barrier bags with multi-layer moisture and oxygen barrier film for food, electronics, and pharmaceutical products.
$0.56
UNLIMITED CUSTOMIZATION OPTIONS
A printing technique employing a plate to transfer designs onto paper. Ideal for extensive print jobs.
Plate-free digital printing transfers designs electronically, cost-effective for short runs.
Screen printing is a method using a mesh screen and stencil to transfer ink onto a substrate.
Quick-drying printing technique utilizing ultraviolet lights for ink curing, yielding a glossy finish.
Consisting of water-based pigments, Ensures top-notch color output with a 100% eco-friendly profile.
Fluorescent inks are vibrant, UV-reactive pigments that emit vivid colors under ultraviolet light.
Generate pure colors using specific ink formulas to consistently & precisely reproduce color in printing.
Produce metallic colors through precise ink formulations to replicate color in printing.
Premium bleached white paperboard, specially coated on one side to enhance printing & finishing.
Bleached white paperboard, coated on both sides to achieve superior printing quality and finishes.
Top-notch textured paper, perfect for adding a touch of style when wrapping up durable boxes.
A unique paper material showcasing a shiny or matte metallic laminated surface.
Bleached kraft paper crafted from a blend of new and recycled pulp, coated on both sides for optimal printing.
Kraft paper produced from a combination of new and recycled paper pulp, with coating on both sides for printing purposes.
Kraft paper dyed black, manufactured from a blend of new and recycled pulp, and coated on both sides for printing applications.
Crafted from recycled grey chipboard cardboard, also known as uncoated recycled paperboard, ideal for luxury rigid boxes.
Unique paper material showcasing a holographic laminated surface in either glossy or matte finish.
Grey chipboard, one-sided white cardboard with a smooth, printable surface, ideal for luxury rigid boxes.
Gloss lamination enhances visual appeal by applying a shiny finish, and protecting printed materials.
Matte lamination offers a non-reflective finish, providing elegant appearance to printed materials.
Made with a smooth lamination that feels like touching a peach, can choose between a satin or matte.
A UV coating is applied to a specific area and then cured using ultraviolet light to make it sturdy.
A transparent coating is applied using the CMYK printing technique, and it comes in gloss, satin, or matte.
A fast-drying coating that undergoes curing through ultraviolet light is offered in both gloss and matte.
In a printing method, dies are pressed onto the back of the material to create a raised motif.
A printing technique that involves pressing dies onto the front of the material to create a raised motif.
In foil relief printing, foil is transferred at high temperatures, often employing multiple colors.
Craft a die-cut shape with a plastic film layer, revealing a window to showcase the product inside.
We recommend the ideal material and add-ons like lamination, foiling, embossing UV, etc.
Get Free Design Support with your box 3d Renders or Send Your Design File for Printing.
Upon design approval, we’ll print and conduct quality checks before shipping the boxes to you.
Technical Specifications
| Dimensions | Available in Custom Sizes |
| Printing | CMYK, Pantone Color, Full Color & No Printing |
| Material | Food-Grade Mylar, Aluminum Foil Laminate, Kraft Mylar & Clear Mylar |
| Finish | Matte, Glossy & Metallic Finish |
| Features | Heat Sealing, Resealable Zipper, Tear Notch, Hang Hole |
| Custom Options | Clear Window, Child-Resistant Zipper, Custom Printing, Matte/Gloss Coating |
| Proof | Digital Proof, 3D Mock-Up |
| Shipping | Shipped FLAT (Free Shipping Across USA & Canada) |
| Help | For further inquiries and Quotes, contact us or email at sales@cratpackaging.com |
Flat barrier bags use a multi-layer moisture and oxygen barrier film to protect sensitive products from air, humidity, and light, keeping food, electronics, and pharmaceuticals stable in storage and transit.
Flat Barrier Bags Specifications
| Box Style | Flat two-sided sealed bag, open top with heat-seal closure |
| Material | Multi-layer barrier film (foil, PET, or metallized laminate) |
| Assembly | Pre-formed, fill and heat-seal at packout |
| Best For | Food, electronics, pharmaceuticals, moisture-sensitive parts |
| Print Options | Full-color reverse printing, matte or gloss finish |
| Order Volume/MOQ | Low minimums for small batches, bulk pricing for production runs |
| Shipping | Flat-packed cases ship nationwide from US facilities |
What Makes It a Barrier Bag
A standard flat bag uses plain film; a barrier bag adds layers engineered to block oxygen transmission, moisture vapor, and light. That layered film keeps freeze-dried food from going stale, electronics from corroding, and light-sensitive pharmaceuticals stable well past what a basic poly bag can manage.
Who Uses This Style
Food producers packaging freeze-dried and dehydrated goods, electronics manufacturers shipping moisture-sensitive components, and pharmaceutical and supplement brands all rely on barrier film to meet shelf-life and stability requirements.
Eco-Friendly Options
A 2025 McKinsey survey found that over 60% of U.S. consumers pick green packaging when they have the choice, and recyclable mono-material barrier films are available for brands that need protection without giving up sustainability goals.
Format and Print Options
Reverse printing under the film protects the graphics from abrasion, and matte or gloss finishes support both industrial labeling and retail-ready branding.
Practical Advantages
Flat construction keeps freight and storage compact, heat-sealing gives a reliable airtight closure, and the barrier layers extend shelf life without added preservatives or repackaging.
Why Order From Crat Packaging
- Direct manufacturing with no middleman markup
- True multi-layer barrier film, not just standard poly
- Reverse printing for scuff-resistant graphics
- US-based production and support
- Free design proof before any print run
- Low minimums for small-batch producers
How to Order
- Share your bag size, quantity, and barrier requirements
- Review a free digital proof
- Approve artwork and confirm timeline
- Receive flat-packed bags ready to fill and seal
Frequently Asked Questions
What does a barrier layer actually block?
It blocks oxygen transmission, moisture vapor, and in many cases light, which are the main drivers of spoilage, corrosion, and degradation.
Are these food-safe?
Yes, food-grade barrier film options are available for direct food contact applications.
How is this different from a barrier pouch?
This is a flat two-sided bag without a standing gusset; a custom flat barrier pouch uses the same barrier film but is built with branded, retail-ready artwork as the primary focus.
Can I get a resealable closure?
Yes, zipper closures can be added to the heat-seal top for products that need repeated access.
What is the minimum order quantity?
Low minimums are available for small-batch producers, with better pricing at production volumes.
Are recyclable barrier films available?
Yes, recyclable mono-material barrier films are available for brands prioritizing sustainability.
