Flat Bottom Bag Packaging

Our flat bottom bag packaging is a versatile composite packaging solution suitable for a wide range of products. Designed according to different loading capacities, it accommodates large, medium, and small specifications with ease. The bags are made from mainstream composite materials such as PET, NY, AL, and PE, combined with functional layers like aluminum foil or metallized film.
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Description

Our flat bottom bag packaging is a versatile composite packaging solution suitable for a wide range of products. Designed according to different loading capacities, it accommodates large, medium, and small specifications with ease. The bags are made from mainstream composite materials such as PET, NY, AL, and PE, combined with functional layers like aluminum foil or metallized film.

The structure is flat and stable, providing excellent heat-sealing performance, tensile strength, and impact resistance. Solvent residue levels meet regulatory standards, and safety performance is fully compliant. The bags are widely used in packaging non-liquid products such as snacks, dry goods, pet food, and daily necessities, making them a highly adaptable and essential packaging solution.

 

Company Capabilities

 

Founded in 2003, Tongcheng Wanfang Paper & Plastic Packaging Co., Ltd. is a national high-tech enterprise. The factory covers 10,000 m², including a 3,800 m² dust-free production workshop. Our production line features state-of-the-art equipment, including:

Nordmeccanica solvent-free laminating machine (Italy)

Electronic shaft printing machine (Weinan)

Multiple bag-making machines

 

 

High-speed slitting machines

 

 

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The company employs 66 skilled staff, with a stable monthly production capacity of 25 million bags. Leveraging a complete supply chain, we efficiently handle bulk orders while maintaining strict quality control throughout the entire process-from raw material intake to finished product shipment. The the flat bottom bag packaging we produce is consistently reliable and meets high-quality standards.

 

Product Specifications

 

 

Field

Details

Product Name

Flat Bottom Bag

Bag Types

Flat bottom bag, three-side sealed flat bottom bag, standard flat composite bag

Main Material Structure

Large capacity (≥1000g): PET/AL/PE, PET/VMPET/PE, PET/AL/NY/PE
Medium (500-1000g): PET/NY/PE, PET/AL/PE, PET/VMPET/NY/PE
Small (<500g): PET/PE, PET/AL/PE, PET/NY/PE, PET/Paper/PE

Key Technical Parameters

Heat-seal strength: two-layer/three-layer aluminum foil ≥20N, other multilayer ≥40N
Tensile strength: two-layer ≥25N, three-layer and above ≥35N; elongation 40–60%
Impact resistance: two-layer ≥0.6J, three-layer and above ≥1.0J
Solvent residue: ≤5mg/m², benzene undetectable
Usage temperature: -10℃~40℃

Notes

For temperatures below -10℃, a modified material formula is required

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