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Three Side Seal Pouch

Three-side Seal Pouch

This high-temperature retort pouch with three-side seal is a flexible packaging product specifically designed for high-temperature sterilization processes. It is composed of multiple layers of barrier materials, capable of withstanding high-temperature processing (typically 121℃ to 135℃). The PET/AL/PA/RCPP structure provides excellent barrier properties, effectively blocking oxygen, water vapor, light, and odors. The product's water vapor permeability is ≤0.5g/㎡·24h, and oxygen permeability is ≤0.5 cc/g·㎡·24h. It exhibits excellent puncture and pressure resistance, and will not break, discolor, deform, or delaminate after high-temperature retort. Made with food-grade materials, it meets national food safety standards and ensures long-term preservation of contents at room temperature. This product is widely used in high-temperature sterilization packaging for food, pet food, and pharmaceuticals.

Product Overview

Three-side seal bags are the "versatile basic" in flexible packaging, a stable and reliable first choice. They are made of multiple layers of film, with the left, right, and bottom sides firmly sealed by heat sealing technology, leaving only the top opening for filling. It is the simplest, most widely used, and most technologically mature classic bag type in flexible packaging.

Key Features

King of Cost-Effectiveness: Its simple structure translates to low mold costs, fast production speed, and low scrap rate, making it the most cost-effective choice for large-volume purchases.

Top Performer in Sealing: Three even and secure sealing edges provide excellent airtightness and moisture resistance, effectively extending product shelf life.

Versatile Compatibility: Whether it's a small seasoning packet or a large bag of rice; whether it's room-temperature snacks or meat requiring 121℃ high-temperature cooking, it can be perfectly adapted by changing the material.

Perfect Display Surface: The smooth, wrinkle-free bag body provides an excellent canvas for high-definition printing, showcasing delicate colors and brand details.

Product Customization

• BOPP/CPP: High transparency, bright printing, suitable for biscuits, candies, dried goods, etc.

• PET/PE: Good strength, high transparency, suitable for daily chemical products, general food, etc.

• PA/PE: Puncture resistant, low temperature resistant (does not crack at -18℃), suitable for frozen foods, bone-in meat products, vacuum packaging, etc.

• PET/AL/PE: Completely light-blocking, ultra-high barrier, suitable for tea, coffee, health products, etc.

• PET/VMPET/PE: Cost-effective barrier solution, suitable for puffed foods, flavorings, etc.

• PET/AL/PA/RCPP: High barrier solution, suitable for sauces, prepared dishes, braised foods, etc.

Applications

• Food Industry: Snack foods, frozen foods, condiments, tea, coffee, pet food, etc.

• Daily Chemicals and Pharmaceuticals: Laundry detergent, shampoo, and other daily chemical products; medical devices, pharmaceuticals, and other pharmaceutical packaging requiring moisture protection.

• Electronics and Industrial Products: Antistatic and protective packaging for electronic products, hardware, auto parts, and other industrial products.

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FAQ

Q: What is your MOQ for custom packaging?

A:

Our minimum order quantity (MOQ) varies by product type and complexity. For standard stand-up pouches and flat bags, MOQ starts at 5,000 pieces. More complex shapes or custom tooling may require higher quantities-typically 10,000+ pieces. We recommend discussing your specific requirements with our team to find the most cost-effective solution for your volume needs.

Q: What printing methods do you support?

A:

We offer two primary printing methods: Gravure printing and Digital printing. Gravure printing utilizes etched cylinders for up to 10 colors, delivering exceptional print quality and cost-effectiveness for large runs of 10,000+ units. Digital Printing offers flexibility with no color limitations, ideal for smaller quantities, customizations, and rapid prototyping. Both methods achieve vibrant, high-resolution results suitable for food-grade applications.

Q: What materials are available for food packaging?

A:

We provide an extensive range of food-safe materials including: PE (polyethylene) for basic applications, PP (polypropylene) for higher temperature resistance, PET (polyester) for clarity and durability, metallized films for premium barrier properties, aluminum foil for maximum oxygen and light protection, and specialty recyclable and biodegradable options. Our team can recommend optimal material structures based on your product specific preservation requirements.

Q: Can you provide samples before production?

A:

Yes, we strongly recommend samples before mass production. We offer prototype sampling services typically taking 7-10 days. Samples allow you to evaluate material quality, print accuracy, functional features, and overall appearance. For complex custom orders, we provide pre-production samples for your approval before commencing full production runs, ensuring complete satisfaction with the final product.

Q: What certifications do you have?

A:

Ente Packaging maintains comprehensive certifications including: ISO 9001:2015 for quality management systems, BRC (British Retail Consortium) certification for food safety, FDA registration for food-contact materials, EU regulation compliance for European markets, and SEDEX certification for ethical supply chain practices. We also hold FSSC 22000 food safety certification and can provide relevant documentation for customs clearance and compliance requirements.

Q: How long is the production lead time?

A:

Production lead times depend on order complexity and quantity. For standard orders with MOQ (5,000-10,000 pieces), typical lead time is 15-20 days from sample approval. Orders requiring custom tooling or complex specifications may take 20-30 days. Express production is available for urgent requirements with additional fees. We provide detailed production schedules during the quotation phase and keep you informed throughout manufacturing.

Why Lay Flat Pouches Are the Right Choice

Our premium stand-up pouches combine innovative design with superior materials to deliver exceptional product protection and shelf appeal. As a trusted OEM packaging supplier, we specialize in custom packaging bags that enhance brand visibility and product freshness.

 

Whether you need food-grade packaging for snacks, coffee, or liquids, our stand-up pouches provide the perfect balance of functionality and aesthetics. With advanced barrier properties and versatile customization options, our flexible packaging solutions help businesses differentiate their products in competitive markets.

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Customization Scope

Enter Packaging provides comprehensive flexible packaging customization services to meet your personalized needs:

Material

PET, PE, NY, AL, CPP, Kraft Paper, etc.

Recommend suitable materials based on product characteristics

Colors

1-10 color printing

High-speed printing machines ensure vibrant and full colors

Size

Width 50-1200mm, unlimited length

Any size can be customized according to product specifications

Style

3-side seal, Stand-up, Flat bottom, Zipper, Spout, etc.

Multiple bag styles available to meet different needs

Additional Function Customization

Zipper closure, Spout, Easy-tear opening, Hang hole, Degassing valve, Transparent window, Matte finish, Spot UV, Hot stamping gold/silver, and other special processes

Lay Flat Pouch Formats For Your Product


            

            
+86 573 8889 7618
+86 573 8889 7618