Mechanical Fiber Recovery

The predominant method of textile recycling today is mechanical. Sorted scrap clips are fed into massive machines equipped with thousands of hardened steel pins. These cylinders spin at immense speeds, aggressively gripping the fabric and literally tearing the woven threads apart.

This process is repeated through several cascading cylinders, each with finer pins than the last. By the end of the line, the fabric has been reverted back to "shoddy"—a soft, raw lint resembling virgin cotton pulled from a field. Because the fiber lengths are slightly shortened during this violent tearing process, the shoddy is usually blended with 10% to 20% virgin material (or long-strand recycled polyester) to give it the tensile strength needed to be spun back into yarn on an industrial loom.

The Rise of Chemical Recycling

While mechanical recycling is highly effective for pure fabrics like 100% cotton, it hits a roadblock when fabrics are blended. A garment that is 60% cotton and 40% polyester cannot be easily recycled mechanically without compromising the fiber. Enter chemical recycling.

1. Dissolution: Chemical recycling involves dissolving the fabric in advanced, non-toxic solvents.
2. Separation: The chemical process can isolate the cotton cellulose from the polyester polymer chains.
3. Extrusion: These separated elements are then extruded back into brand new, virgin-quality filaments.

Chemical recovery is currently in its infancy and remains highly expensive, but as the technology scales, it promises to solve the "poly-blend" dilemma that plagues the fast-fashion waste sector.

At MCE, our primary goal is to ensure the feedstock we provide to mechanical shredders is completely devoid of poly-contaminants, ensuring the legacy mechanical machinery operates at 100% efficiency and produces the softest, strongest recycled yarn possible.