China Printed Composite Bags Supplier - Eco-Friendly Zipper & Air Valve Bags from Top Factory
Parameter
| Serial Number | Indicator Name | Indicator Value |
|---|---|---|
| 1 | length tolerance | ±2 mm |
| 2 | width tolerance | ±2 mm |
| 3 | thickness tolerance | round dot: 80±8% μm |
| 4 | heat seal width tolerance | 7±1.5mm |
| 5 | printing quality | text and patterns are clear, with uniform color; registration deviation ≤ (0.3mm), main part (0.2mm) |
| 6 | peel strength | NY/PE TD: ≥3.0N |
| 7 | heat seal strength | 1. lateral (TD): ≥35N 2. longitudinal (MD): ≥35N |
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Packaging Project
Frequently Asked Questions
What are the dimensional tolerances for these composite bags?
Both the length and width tolerances are strictly controlled within ±2 mm to ensure high precision and consistency for automated packaging systems.
What is the thickness tolerance for the round dot pattern?
The thickness tolerance for the round dot is maintained at 80±8% μm, providing uniform thickness and reliable protection.
How is the printing quality and registration accuracy controlled?
The printing quality features clear text and patterns with uniform color. The overall registration deviation is ≤ 0.3mm, while the main part deviation is kept under ≤ 0.2mm.
What are the strength specifications for these packaging bags?
The bags feature a peel strength of NY/PE TD ≥ 3.0N. The heat seal strength is ≥ 35N in both lateral (TD) and longitudinal (MD) directions, preventing leakage and ensuring durability.
Are these products suitable for custom packaging projects?
Yes, our composite bags are engineered to meet precise technical parameters and high strength requirements, making them ideal for a wide range of commercial and industrial packaging projects.