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Square Bottom Paper Bag

Square bottom bag as known as Self open square bottom bag or pasted bottom bag.The bottom is folded into a rectangle and a reinforcement is firmly fixed to enhance its durability.This is a practical multi-layer kraft paper bag produced by our industrial paper bag factory.

    Product Description

    The square bottom paper bag is a versatile and robust industrial paper sack packaging solution tailored to meet the demands of various industries. Characterized by its distinctive square-shaped base, this multi-wall paper bag offers several key features that make it an ideal choice for industrial applications:

    1. Exceptional Durability: Crafted from high-quality paper materials, these bags boast outstanding strength and resistance, ensuring they can withstand the rigors of industrial environments and heavy loads.
    2. Stability: The square bottom design provides remarkable stability when stacked, making it easy to store and transport large quantities of goods without the risk of toppling over or shifting.
    3. Efficient Filling and Sealing: The bags are designed for efficient and hassle-free filling. They often come with options for easy sealing, whether through adhesive closures, heat sealing, or other secure methods.
    4. Customizable: Industrial square bottom paper bags can be tailored to specific size requirements and printed with branding or product information, facilitating easy identification and enhancing product presentation.
    5. Versatility: These bags are suitable for a wide range of industrial applications. They can be used to package and transport bulk materials such as chemicals, grains, powders, pet food, construction materials, and more.
    6. Environmentally Friendly: Many square bottom paper bags are eco-friendly and biodegradable, making them a sustainable choice in line with environmental regulations and corporate responsibility initiatives.
    7. Cost-Effective: Due to their efficient manufacturing processes and recyclable nature, these bags offer a cost-effective packaging solution for industrial businesses.

    In short, as China's outstanding industrial paper bag manufacturer, we adhere to the production philosophy of efficient, environmentally friendly and quality first, and have provided high-quality paper bag packaging solutions to more than 100 well-known companies at home and abroad. If you are looking for square bottom paper bags for industrial use, our multi-layer kraft paper bags are an excellent choice for you.

    What can we do for you

    1. We provide you with customized sizes - 20kg, 25kg, 50kg etc
    2. We provide you with custom printing - logos, patterns, product information
    3. We provide you with single-layer, two-layer, three-layer and other multi-layer designs
    4. We offer you a variety of industrial paper bag style:
    • Valve bags (PVSE)
    • Square flat bottom open-mouth bags (SOS)
    • Sewn open mouth bags (SOM)
    • pinch-bottom open-mouth bags (PBOM)

    If you need to know more information about minimum order quantity、delivery time etc,Please contact us

    Base Paper

    Bleached or unbleached paper is available, with grammages ranging from 70gsm to 100 gsm. Polycoated plies or HDPE films (High Density Polyethylene) can be incorporated if required for enhanced moisture protection.


    Stable palletisation
    Self-supporting for display
    Reliable hygienic closure features
    Easy and secure filling

    Optional Features

    Easy Open

    Integrated tear-open strip

    Security Labe

    Highly sophisticated anti-counterfeiting label


    For enhanced end user convenience


    Width180 mm - 750 mm
    Bottom70 mm - 300 mm
    Length240 mm - 1350 mm
    Number of plies1 - 6
    The following bases for open mouth bags are available to meet your requirements for easy palletising or a self-supporting displayPasted bottom - flat (standard, hexagonal bottom)
    Pasted bottom - flat (with tape closure)
    Sewn bottom - flat
    Sewn bottom - gusset
    Pinch bottom - flat
    Pinch bottom - gusset
    SOS - gusset
    Polycoated plies or high-density polyethylene (HDPE) / low-density polyethelyne (LDPE) inliners, , metallised and/or aluminium coated paper can be incorporated for enhanced barrier properties and to enable heat sealing.

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