What Are Co-Extruded Polypropylene Bags?Co-extruded (co-ex) polypropylene bags are manufactured using a specialized process that bonds multiple layers of polypropylene film together. This creates a bag that's significantly stronger and more durable than single-layer poly bags, while using less material overall. The result? A thinner, clearer bag with superior puncture resistance, better seal strength, and excellent moisture and grease barriers—ideal for demanding food packaging applications. Key Features & Benefits- FDA Approved: Safe for direct food contact, meeting all FDA requirements for food packaging
- Freezer Safe: Maintains integrity at freezing temperatures without cracking or becoming brittle
- Microwave Safe: Withstands microwave heating for reheating prepared foods
- Superior Clarity: Crystal-clear film showcases product attractively
- Strong Seals: Heat-sealable for secure closures that won't open during handling
- Moisture Barrier: Protects contents from humidity and prevents freezer burn
- Grease Resistant: Ideal for baked goods, meats, and other food items
Available FormatsSide Gusset BagsSide gusset co-ex bags expand to accommodate bulkier items while maintaining a flat profile when empty. Perfect for bakery products, cookies, candies, and coffee packaging. The gussets allow the bag to stand upright when filled. Bottom Gusset BagsBottom gusset bags feature expandable bottoms that provide a stable base for heavier or irregularly shaped products. Excellent for produce, bulk foods, and retail packaging applications. Wicketed Bottom Gusset BagsPre-loaded on wickets (metal strips) for rapid dispensing in high-volume packaging operations. These bags are ideal for automated or semi-automated packaging lines where speed matters. Common Applications- Bakery packaging (bread, pastries, cookies)
- Meat and poultry packaging
- Produce and fresh vegetables
- Frozen food packaging
- Coffee and tea packaging
- Candy and confectionery
- Retail merchandise packaging
- Food service and takeout containers
Why Buy from Prism Pak?As an authorized distributor of LK Packaging products, we offer competitive wholesale pricing on co-extruded polypropylene bags with no minimum order requirements on most items. Fast shipping, knowledgeable support, and volume discounts available. Need custom sizes or printing? Contact us for a quote on custom co-ex bags tailored to your brand. Frequently Asked QuestionsWhat are co-extruded polypropylene bags?Co-extruded polypropylene bags, or co-ex bags, are made by bonding multiple layers of polypropylene film together in a single extrusion process. The multi-layer construction makes the bag stronger and more puncture-resistant than a single-layer poly bag of the same gauge, while staying thinner and clearer and using less material overall. Are co-extruded polypropylene bags food safe?Yes. Co-extruded polypropylene bags are FDA compliant for direct food contact, so they can be used for bakery items, meat and poultry, produce, frozen foods, coffee and confectionery. They are also freezer safe and microwave safe, and provide a moisture and grease barrier that protects contents from humidity and freezer burn. Are co-extruded bags better than regular poly bags?For most food applications, yes. Co-ex bags are stronger, clearer and more puncture-resistant than standard single-layer polypropylene bags while using less material, and they are rated for both freezer and microwave use, which standard poly bags often are not. What is the difference between a side gusset and a bottom gusset co-ex bag?A side gusset bag expands on both sides and lies flat when empty, which suits stackable items such as bread, cookies, candy and coffee. A bottom gusset bag expands at the base so the filled bag stands upright on a stable flat bottom, which suits heavier or bulkier products such as produce and bulk foods. What are wicketed co-extruded bags used for?Wicketed bottom gusset bags come pre-loaded on metal wickets so a single bag can be pulled and filled at a time, which makes them the standard choice for high-volume automated and semi-automated packaging lines. Bakeries and produce packers are the most common users. Can you heat seal co-extruded polypropylene bags?Yes. Co-extruded polypropylene bags seal with any standard impulse sealer or continuous heat sealer and produce a strong, reliable closure that will not open during handling or shipping. Are co-extruded polypropylene bags recyclable?Polypropylene is #5 plastic and is recyclable wherever local facilities accept #5. Acceptance varies by municipality, so check your local recycling program before adding them to curbside collection. |
