Material Definition
Cellulosic fibers reclaimed from pre-consumer textile waste or post-consumer garments serve as alternative raw material inputs for yarn spinning. Commercially processed recycled cotton consists of shredded fabric scraps and garment cuttings reduced to staple fiber form through mechanical garnetting. This raw material governs sustainable fiber blending and open-end rotor spinning operations.
It excludes chemically dissolved and regenerated cellulosic fibers such as viscose or lyocell.
Mechanical Processing
Rotary cutters and pinned garnetting cylinders tear fabric structures apart to isolate individual fibers. Recovering recycled cotton severely reduces average fiber length, generating high proportions of short fibers and neps. Sorting waste by color before mechanical shredding eliminates subsequent wet dyeing processes, reducing water consumption at the mill level.
The resulting fiber mass exhibits wider fiber length distribution than virgin cotton, requiring specialized carding settings.
Yarn Spinning
Blending short reclaimed fibers with long-staple virgin cotton or synthetic fibers maintains required yarn tenacity.
Structural Limit
Fiber damage inherent in mechanical shredding restricts the standalone utilization of reclaimed cellulosic inputs in high-tenacity yarns. Pure recycled cotton lacks sufficient mean fiber length and tensile strength to produce fine ring-spun yarns without breaking. High short-fiber content increases yarn hairiness and reduces abrasion resistance in finished woven textiles.
Consequently, commercial spinning limits reclaimed content to blended ratios, typically below 30 percent in fine count fabrics.
