Back-Seal Bag Product Overview

• Customization: Available
• Industrial Use: Food
• Transparency: Opaque
• Layered: Functional Layer
• Hardness: Rigid
• Basic Level: KPET
• Heat Seal: LDPE
• Functional Layer: EVOH
• Packaging: Bag
• Bag Sealing Methods: Cylindrical Bag
• Specification: 230*290*10
• Origin: Shandong Zhucheng
• Production Capacity: 10000 One Year
• Package Size: 23.00cm * 29.00cm * 10.00cm
• Package Gross Weight: 0.100kg
• Lead Time: 8 days (1 - 10000 Pieces) ; To be negotiated ( > 10000 Pieces)

Product Description

Back-Seal Bag Product Overview

Product Description

Back-seal bags, also known as center-seal bags, are a popular flexible packaging format featuring a vertical seal running along the back of the pouch. This design creates a sleek, flat profile and is widely used across food, pharmaceutical, personal care, agricultural, and industrial sectors due to its efficient structure and excellent sealing performance.

Key Features

1.Center-back seal design: Offers a clean, professional appearance
2.Excellent barrier properties: Protects contents from moisture, oxygen, and contamination
3.Cost-effective: Compatible with high-speed automatic packaging machines, reducing labor and material costs
4.Highly customizable: Supports printing, tear notches, hang holes, and transparent windows
5.Material versatility: Available in PET/PE, PET/CPP, aluminum foil laminates, and more

Specifications (Customizable)

Attribute	Range / Options
Size	Width: 50mm-300mm, Height: 80mm-500mm
Material	PET/PE, PET/CPP, PET/AL/PE, etc.
Thickness	60μm-150μm
Printing	Gravure printing, up to 10 colors
Add-ons	Tear notch, zipper, hang hole, clear window

Applications

1.Food packaging: Candy, cookies, coffee, spices, instant powders
2.Pharmaceuticals: Granules, supplements, reagents
3.Personal care: Detergent, face masks, wet wipes
4.Agriculture: Seeds, fertilizers, animal feed
5.Industrial goods: Screws, hardware, small components

Why Choose Back-Seal Bags?

1.High production efficiency: Ideal for automated vertical and horizontal form-fill-seal machines
2.Brand visibility: Large printable surface for clear branding and product info
3.Enhanced protection: Triple-seal structure improves durability and shelf life
4.Flexible design: Suitable for various volumes, shapes, and functional features

Frequently Asked Questions (FAQ)

Q1: Can back-seal bags stand upright?
 A: Not inherently. However, they can be modified with gussets or converted into stand-up pouches.
Q2: Are eco-friendly materials available? 
A: Yes. Options include recyclable mono-materials (e.g., PE) and biodegradable films like PLA.
Q3: What packaging machines are compatible?
 A: Back-seal bags work well with vertical form-fill-seal (VFFS) and horizontal form-fill-seal (HFFS) machines.
Q4: Can I add a zipper or tear notch?
 A: Absolutely. Zippers, tear notches, hang holes, and other features can be added upon request.
Q5: What is the minimum order quantity (MOQ)? 
A: Typically 5,000-10,000 pieces depending on size, material, and printing requirements.
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