Comprehensive Guide to T-Shirt Bag Manufacturing and Machinery

Understanding T-Shirt Bags: Production, Applications, and Machinery Solutions

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T-shirt bags, also known as shopping bags or carrying bags, are a staple in retail and packaging due to their lightweight, durable, and waterproof nature. Their distinctive feature is the handle design, resembling tank top shoulder straps, which makes them easy to carry.

Versatile Machinery for T-Shirt Bag Production

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Manufacturers require flexibility to meet diverse market demands for T-shirt bags, which can vary in color, pattern, and print. To address these needs, a range of blown film extrusion machines is available, supporting everything from single-color films to two-tone striped designs, with or without custom prints.

A standout solution is the ABA three-layer blown film line, which offers significant cost-effectiveness. This technology allows the use of recycled materials or calcium carbonate compounds in the core (B) layer, while maintaining virgin-grade material on the outer layers. The result is excellent sealing strength, reduced material costs, and reliable printability—ideal for high-volume, custom-printed T-shirt bag production.

Machine Options for T-Shirt Bag Manufacturing

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HDPE High Speed Mono Layer Blown Film Machine (CT-H) ABA Co-Extrusion Blown Film Machine (CT-ABA) ABA Co-Extrusion Line Twin Head Blown Film Machine (CT-ABATH) HDPE / LDPE Stripe Three Color Co-extrusion Blown Film Machine (CT-TC3) Fully Automatic Two Track T-shirt Bags Making Machine (MTTP-SS) Gear Type Off-line Flexographic Printing Machine Belt Type Off-line Flexographic Printing Machine Fully Automatic Three Track T-shirt Bags Making Machine (MTTP-SSS)

Typical Uses of T-Shirt Bags

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T-shirt bags are widely used due to their practicality:

1. Shopping bags: Common in supermarkets, convenience stores, and clothing shops for carrying goods.
2. Garbage bags: Utilized for everyday waste disposal.
3. Food bags: Suitable for packaging cooked or take-out food.
4. Packaging bags: Used for general goods or retail packaging.

Material Selection for T-Shirt Bags

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The primary material for T-shirt bags is polyethylene (PE). The film can be produced from:

• Low-density polyethylene (LDPE): Soft, ductile, and resistant to brittleness; often used for drink bags.
• High-density polyethylene (HDPE): Harder, more durable, and offers better load-bearing; commonly used for shopping and packaging bags.

For cost savings and improved sealing, the ABA blown film machine enables the use of higher calcium carbonate (CaCO3) masterbatch or recycled material in the core layer. Biodegradable materials are also available upon request to reduce environmental impact.

T-Shirt Bag Manufacturing Process

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1. Blown Film Extrusion:

   • Material pellets are melted in the extruder, pass through the die head, and are inflated to form a plastic bubble. The film cools as it moves through the machine and is then wound for further processing.

2. Printing:

   • Logos, patterns, or information can be printed on the bags. The choice of printing machine depends on the desired pattern color and detail, with some models capable of photo-like prints.

3. Bag Making:

   • The film roll is cut to the preset bag length, the bottom is sealed, and a handle-shaped cutting mold forms the signature T-shirt bag handles.

Example of T-Shirt Bags Produced

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For more information on machinery and solutions for T-shirt bag production, explore the full product range or contact us.