Customizable Flexible Three-Side Seal Bags for Premium Food Packaging

Overview

Specialized three-side seal bags crafted from food-grade multi-layer composite materials (PET/PE, PET-AL-PE) through processes including film compounding, precision printing, and three-side heat sealing. These bags integrate food contact safety, strong sealing, and cost-effectiveness. Suitable for packaging 10g to 500g food such as snacks, dried fruits, tea, and instant food. They feature excellent barrier properties, lightweight design, and easy storage, widely applied in food processing enterprises, convenience stores, and e-commerce retail scenarios.

Product Features

Food-Grade Multi-Layer Material: Complies with GB 4806.7-2016 standard, non-toxic, odorless, no substance leaching, safe for direct contact with solid, granular, powdery, and semi-solid foods.

Strong Freshness & Sealing Retention: Three-side integral heat sealing structure blocks oxygen, moisture, and light effectively, preventing food oxidation, dampness, and flavor loss; tight sealing avoids air penetration, extending shelf life by 4-8 months.

Clear & Wear-Resistant Marking: High-adhesion eco-friendly ink printing, patterns and text are clear and fade-resistant. Customizable product information, shelf life, and corporate logos for easy traceability and brand promotion, suitable for small-batch packaging.

User-Friendly Design: Optional easy-tear notches, vacuum packaging compatibility, and transparent windows; flat structure saves storage space, easy to open and use, suitable for single-serve and sample packaging.

Product Advantages

Superior Sealing Performance: Oxygen transmission rate ≤3cc/(m²·24h·0.1MPa) (metallized type), moisture transmission rate ≤2g/(m²·24h); three-side sealing strength ≥12N/15mm, no leakage or air penetration, better than ordinary open bags.

Flexible Customization: Supports size (10g-500g), color, material (transparent/opaque/metallized), and functional design (easy-tear notch/vacuum applicable) customization; blank bags available for emergency needs.

Cost-Effective & Space-Saving: Simplified three-side structure reduces production costs by 20% compared to complex bags; flat design saves storage and transportation space, significantly lowering logistics costs for enterprises.

Wide Application Scope: Adaptable to packaging of solid (snacks, candies), granular (dried fruits, nuts), powdery (tea, condiments), and semi-solid (jam, honey) foods, meeting diverse needs of snack, tea, and instant food brands.

Quality Assurance

Adheres to GB/T 10004-2008 and food contact standards, with multiple inspections per batch to ensure the following:

Barrier & Sealing Strength: Passes 48-hour airtight test with no food quality changes; no leakage under internal pressure of 0.15MPa, suitable for small-batch and e-commerce shipping.

Tear & Impact Resistance: Tear strength ≥45N, resistant to accidental pulling; no bag damage when fully loaded (500g) and dropped from 1.0 meter, ensuring transportation safety for small packages.

Printing & Hygiene Control: Printing color consistent, no smudges or blurring; easy-tear notches positioning accurate, opening rate 100%; material meets food hygiene requirements, no peculiar smell or harmful residue.

After-Sales Commitment: Free return and exchange provided with proof for quality issues (sealing failure, material peculiar smell, difficult opening) under normal use.

Product Specifications

Product Applications

Single-serve snack packaging for food processing enterprises, tea and condiment packaging for convenience stores, sample packaging for new products, and e-commerce small-batch food shipping. Also suitable for packaging health supplements, pet treats, and spices.