Jute bag production falls under the bast fiber manufacturing industry and involves a rigorous process. First, plant fibers undergo softening, conditioning, carding, drawing, and spinning to produce yarn, which is then woven into coarse jute fabric. Next, the material enters the bag-making assembly line: the fabric is measured, calendered, folded, and cut into bag blanks; the edges are stitched with heavy-duty thread, and the bag opening is folded inward and securely sewn. Quality control is strict; for instance, the seams must withstand a tensile force of at least 1,200 Newtons.
The manufacturing process for jute bags is relatively straightforward, yet every step is crucial. First, high-quality jute fibers are selected and processed through carding and spinning to create jute yarn. Subsequently, this yarn is woven into bags of various specifications and shapes; the weaving density and technique directly influence the bag's strength and durability. Finally, depending on customer requirements, the bags may undergo post-processing-such as dyeing or printing-to enhance their aesthetic appeal and utility.
