The Manufacturing Process and Advantages of Kraft Paper Bags

As a popular choice for sustainable packaging, the manufacturing process and product advantages of kraft paper bags are closely intertwined. Since its establishment in Dongguan in 2007, Guangdong Guowei Guanli New Materials Co., Ltd. has leveraged its mature technology to ensure that kraft paper bags combine environmental friendliness with practicality, making them the preferred choice for “replacing plastic with paper” across various industries.

 

In terms of manufacturing process, multiple precise steps are required from raw materials to finished products. First, high-strength kraft paper is carefully selected, with fiber density 1.5 times that of ordinary paper, providing a sturdy foundation for the bag structure. Cutting is performed using automated equipment with error control within 0.5 millimeters, ensuring consistent bag shapes. Printing uses soy-based eco-friendly ink to avoid harmful residue, particularly suitable for the safety requirements of Food Packaging Paper Bags. Bag formation can be achieved through either adhesive bonding or sewing: adhesive bonding uses plant-based adhesives with a bonding strength of 8 N/cm², suitable for lightweight packaging; sewing employs high-strength cotton thread, increasing tensile strength by 30%, and is primarily used for industrial heavy-duty packaging. For applications in humid environments, a lamination process can be added to form a 0.01-millimeter-thick food-grade film layer, enabling kraft paper bags to serve as courier packing bags resistant to rain while meeting biodegradable packaging standards.

In terms of advantages, environmental friendliness is integrated throughout the entire lifecycle. As an environmentally friendly packaging product, the raw materials come from FSC-certified renewable forests, the production process emits 62% less carbon than plastic packaging, and it can naturally decompose within 90 days after disposal.

 

Durability has been rigorously tested: it can withstand 200 repeated lifts at a load of 5 kilograms without damage, and its puncture resistance outperforms 0.02-millimeter-thick plastic bags, fully meeting the logistics and transportation requirements for paper bag packaging. In terms of cost, large-scale production reduces the per-bag price by 15% compared to degradable plastic bags of the same specifications, helping businesses achieve “carbon reduction without compromising efficiency.”

 

Additionally, it offers strong customization capabilities, enhancing brand quality through processes like hot stamping and embossing. Currently, Guangdong Guowei Guanli's kraft paper bags are widely used in food, e-commerce, and retail sectors, continuously expanding the application boundaries of sustainable packaging through technological innovation.