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Landline: +86-536-6066059
Email: qingyuanpackaging@gmail.com
Dawazi Village, High-tech Industrial Zone, Zhucheng City, 262200, Shandong Province, China
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Back-side seal bag – Efficient, Versatile, and Brand-Ready
The back-side seal bag, also known as a Pillow Pouch or Fin Seal Bag, is one of the most economical and widely used flexible packaging formats in the global market. With its simple structure and high-speed compatibility, it’s a favorite among manufacturers of food, pet care, cosmetics, pharmaceuticals, and household products.
Back-side seal bags are sealed along the back panel, leaving the front surface smooth and uninterrupted—ideal for full-surface branding. Whether you're packaging snacks, powders, or liquids, this pouch format offers excellent protection, convenience, and cost-efficiency.
Structure & Design
Back-side seal bags are made by folding a single sheet of film and sealing it along the back, with top and bottom seals applied after filling. This creates a pillow-like shape that is compact, lightweight, and easy to store or transport.
Available Seal Types:
Fin Seal: Strong vertical seal with overlapping edges
Lap Seal: Flat seal with minimal material overlap
Back Center Seal: Ideal for symmetrical branding and high-speed filling
These pouches can be produced as preformed bags or roll film for automated form-fill-seal (FFS) machines
Key Features & Benefits
High-Speed Compatibility Designed for vertical and horizontal FFS machines, enabling fast and efficient production
Barrier Protection Multi-layer laminates offer excellent resistance to moisture, oxygen, UV light, and odors
Full-Surface Branding Clean front panel allows for vibrant printing, QR codes, product info, and window options
Compact & Lightweight Reduces logistics costs and shelf space usage compared to rigid packaging
Flexible Add-ons Tear notch, hang hole, zip lock, laser score, degassing valve, and more available
Eco-Friendly Options Recyclable, compostable, and mono-material films available to support sustainability goals
Material Structures
We offer a wide range of material combinations to meet your product's barrier and sustainability needs:
Structure Feature
PET/PE Standard moisture barrier, good printability
PET/AL/PE High barrier against moisture, oxygen, and light
BOPP/PE Cost-effective, suitable for dry powders
Recyclable PE Mono-material, eco-friendly, suitable for FFS
PLA-based Compostable, biodegradable options available
All materials are food-grade and compliant with FDA, EU, BRC, HACCP, and SGS standards.
Customization Options
We support full customization to match your brand identity and product requirements:
Size & Volume: From 10g sachets to 5kg bulk packs
Printing: Rotogravure, flexo, or digital (up to 10 colors)
Finish: Glossy, matte, metallic, soft-touch, spot varnish
Features: Tear notch, zipper, spout, handle, hang hole
Window Design: Transparent or shaped windows for visibility
Labeling: Barcode, QR code, usage instructions, safety info
Applications
Back-side seal bags are suitable for a wide range of industries and products:
Food: Snacks, candy, dried fruits, coffee, tea, spices
Pet Care: Treats, supplements, small-portion pet food
Cosmetics: Face masks, wipes, powders, samples
Pharmaceuticals: Supplements, powders, single-dose sachets
Household: Detergents, cleaning tablets, desiccants
Industrial: Agricultural powders, textile chemicals, hardware kits
Whether you're targeting retail shelves or bulk distribution, back-side seal bags offer the flexibility and protection your product needs.
Sustainability Commitment
We offer eco-conscious packaging solutions to support your brand's environmental goals:
♻️ Recyclable Films: Mono-material PE and BOPE structures
Compostable Materials: PLA-based laminates for biodegradable packaging
PCR Content: Post-consumer recycled resin options available
Low Carbon Footprint: Lightweight materials reduce transport emissions
Certifications & Quality Assurance
We are certified by:
ISO 9001 – Quality management system
FDA – Food contact compliance
HACCP – Hazard analysis and control
BRC – Global packaging safety standard
SGS – Third-party testing and inspection
Our production facility spans 19,000㎡, equipped with:
10+ pouch-making lines
High-speed rotogravure printing machines
Solvent-free lamination systems
Optical inspection and QC labs
We provide full documentation including COA, MSDS, and spec sheets for export and compliance.
Frequently Asked Questions (FAQ)
Q1: What is a back-side seal bag?
A: It's a flexible pouch sealed along the back panel, commonly used for food and consumer goods. It's simple, efficient, and cost-effective.
Q2: What materials are available for back-side seal bags?
A: We offer PET/PE, PET/AL/PE, recyclable PE, biodegradable PLA, and other barrier structures.
Q3: Can I customize the size and printing?
A: Yes, we support full customization including size, structure, printing design, and finish.
Q4: Are back-side seal bags suitable for food packaging?
A: Absolutely. All food-contact materials comply with FDA and EU standards, and we provide full documentation.
Q5: Do you offer sustainable options?
A: Yes, we provide recyclable and compostable film structures to support your eco goals.
Q6: What is the typical lead time?
A: Standard lead time is 15–25 days depending on order size and customization.
Q7: Can I get samples before placing a bulk order?
A: Yes, we offer free samples for testing size, material, and printing quality.
Q8: What's your MOQ?
A: Our minimum order quantity is flexible—starting from 10,000 pcs depending on specification, pouch type and printing complexity.
Looking for a reliable back-side seal bag supplier? We offer low MOQ, fast turnaround, and full customization support. Let's build packaging that protects your product, elevates your brand, and meets global standards.
Back-side seal bag – Efficient, Versatile, and Brand-Ready
The back-side seal bag, also known as a Pillow Pouch or Fin Seal Bag, is one of the most economical and widely used flexible packaging formats in the global market. With its simple structure and high-speed compatibility, it’s a favorite among manufacturers of food, pet care, cosmetics, pharmaceuticals, and household products.
Back-side seal bags are sealed along the back panel, leaving the front surface smooth and uninterrupted—ideal for full-surface branding. Whether you're packaging snacks, powders, or liquids, this pouch format offers excellent protection, convenience, and cost-efficiency.
Structure & Design
Back-side seal bags are made by folding a single sheet of film and sealing it along the back, with top and bottom seals applied after filling. This creates a pillow-like shape that is compact, lightweight, and easy to store or transport.
Available Seal Types:
Fin Seal: Strong vertical seal with overlapping edges
Lap Seal: Flat seal with minimal material overlap
Back Center Seal: Ideal for symmetrical branding and high-speed filling
These pouches can be produced as preformed bags or roll film for automated form-fill-seal (FFS) machines
Key Features & Benefits
High-Speed Compatibility Designed for vertical and horizontal FFS machines, enabling fast and efficient production
Barrier Protection Multi-layer laminates offer excellent resistance to moisture, oxygen, UV light, and odors
Full-Surface Branding Clean front panel allows for vibrant printing, QR codes, product info, and window options
Compact & Lightweight Reduces logistics costs and shelf space usage compared to rigid packaging
Flexible Add-ons Tear notch, hang hole, zip lock, laser score, degassing valve, and more available
Eco-Friendly Options Recyclable, compostable, and mono-material films available to support sustainability goals
Material Structures
We offer a wide range of material combinations to meet your product's barrier and sustainability needs:
Structure Feature
PET/PE Standard moisture barrier, good printability
PET/AL/PE High barrier against moisture, oxygen, and light
BOPP/PE Cost-effective, suitable for dry powders
Recyclable PE Mono-material, eco-friendly, suitable for FFS
PLA-based Compostable, biodegradable options available
All materials are food-grade and compliant with FDA, EU, BRC, HACCP, and SGS standards.
Customization Options
We support full customization to match your brand identity and product requirements:
Size & Volume: From 10g sachets to 5kg bulk packs
Printing: Rotogravure, flexo, or digital (up to 10 colors)
Finish: Glossy, matte, metallic, soft-touch, spot varnish
Features: Tear notch, zipper, spout, handle, hang hole
Window Design: Transparent or shaped windows for visibility
Labeling: Barcode, QR code, usage instructions, safety info
Applications
Back-side seal bags are suitable for a wide range of industries and products:
Food: Snacks, candy, dried fruits, coffee, tea, spices
Pet Care: Treats, supplements, small-portion pet food
Cosmetics: Face masks, wipes, powders, samples
Pharmaceuticals: Supplements, powders, single-dose sachets
Household: Detergents, cleaning tablets, desiccants
Industrial: Agricultural powders, textile chemicals, hardware kits
Whether you're targeting retail shelves or bulk distribution, back-side seal bags offer the flexibility and protection your product needs.
Sustainability Commitment
We offer eco-conscious packaging solutions to support your brand's environmental goals:
♻️ Recyclable Films: Mono-material PE and BOPE structures
Compostable Materials: PLA-based laminates for biodegradable packaging
PCR Content: Post-consumer recycled resin options available
Low Carbon Footprint: Lightweight materials reduce transport emissions
Certifications & Quality Assurance
We are certified by:
ISO 9001 – Quality management system
FDA – Food contact compliance
HACCP – Hazard analysis and control
BRC – Global packaging safety standard
SGS – Third-party testing and inspection
Our production facility spans 19,000㎡, equipped with:
10+ pouch-making lines
High-speed rotogravure printing machines
Solvent-free lamination systems
Optical inspection and QC labs
We provide full documentation including COA, MSDS, and spec sheets for export and compliance.
Frequently Asked Questions (FAQ)
Q1: What is a back-side seal bag?
A: It's a flexible pouch sealed along the back panel, commonly used for food and consumer goods. It's simple, efficient, and cost-effective.
Q2: What materials are available for back-side seal bags?
A: We offer PET/PE, PET/AL/PE, recyclable PE, biodegradable PLA, and other barrier structures.
Q3: Can I customize the size and printing?
A: Yes, we support full customization including size, structure, printing design, and finish.
Q4: Are back-side seal bags suitable for food packaging?
A: Absolutely. All food-contact materials comply with FDA and EU standards, and we provide full documentation.
Q5: Do you offer sustainable options?
A: Yes, we provide recyclable and compostable film structures to support your eco goals.
Q6: What is the typical lead time?
A: Standard lead time is 15–25 days depending on order size and customization.
Q7: Can I get samples before placing a bulk order?
A: Yes, we offer free samples for testing size, material, and printing quality.
Q8: What's your MOQ?
A: Our minimum order quantity is flexible—starting from 10,000 pcs depending on specification, pouch type and printing complexity.
Looking for a reliable back-side seal bag supplier? We offer low MOQ, fast turnaround, and full customization support. Let's build packaging that protects your product, elevates your brand, and meets global standards.
