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High-Quality Printed Composite Bags from China Suppliers - Custom Eco-Friendly Packaging Factory

Discover the superior quality of printed composite bags, a versatile solution offered by leading suppliers and factories in China. Our printed composite zipper bags and air valve zipper bags are crafted from multi-layered, eco-friendly materials that ensure excellent sealing and protection for your products. Customizable printing options allow for aesthetic appeal while maintaining practicality, making these bags ideal for packaging a wide range of items, including food and daily chemical goods, **Material:** PA + PE (adaptable to market demands), **Color:** Transparent with custom printed design, **Single-Side Thickness:** 80μm, **Texture:** Smooth surface, Choose our printed composite bags for reliable and visually appealing packaging solutions that meet your business needs

Product Detail

Parameter Technical Specifications

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

Product Image Visual Presentation

Packaging Project Application Cases

Packaging project implementation stage 1

Packaging project implementation stage 2

Packaging project implementation stage 3

Frequently Asked Questions FAQ

What are the length and width tolerances for these composite bags?

The standard length and width tolerances are strictly maintained within ±2 mm to guarantee dimensional accuracy and consistent packaging quality during high-speed production runs.

What is the thickness tolerance of the round dot?

The thickness tolerance for the round dot is specified at 80±8% μm, ensuring optimal structural integrity and barrier protection across the bag surface.

What printing quality standards do you apply to the composite bags?

We ensure high-definition printing where texts and patterns are clear and colors are uniform. The registration deviation is tightly controlled at ≤0.3mm generally, and ≤0.2mm for the main design parts.

How strong is the peel strength of the NY/PE layers?

The NY/PE TD composite structure yields a peel strength of ≥3.0N, which prevents delamination and ensures the composite bag remains secure under various shipping conditions.

What are the heat seal strength values for lateral and longitudinal directions?

Both the lateral (TD) and longitudinal (MD) heat seal strengths are tested to be ≥35N, providing excellent sealing reliability to prevent package leaks or ruptures.