Bag Knowledge
Jacky Zhou
June 19, 2025
Non-woven bags are made by bonding fibers together without weaving or knitting. The process begins with melting polypropylene (PP) granules and extruding them into long fibers. These fibers are laid onto a moving conveyor belt to form a continuous web. The fiber web is then bonded using methods like heat bonding (applying heat and pressure), needle punching (entangling fibers with barbed needles), or spunlacing (using high-pressure water jets). After bonding, the fabric undergoes finishing processes such as calendaring or coating to enhance smoothness and strength. Finally, the finished non-woven fabric is cut and sewn into bags of various shapes and sizes.
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Order or no-order we are Always here to help you!
We will contact you within 1 working day, please pay attention to the email with the suffix “@yanxinbag.com”.
