Precision planning for GRS-certified textile production. Calculate the raw input volume required to meet your recycled thread output targets.
Producing GRS (Global Recycled Standard) certified thread involves mechanical or chemical shredding of post-industrial and post-consumer textile waste. During this process, short fibers are lost, meaning you must always input more raw waste than your target output. Our yield calculator factors in standard fiber loss buffers (typically 12-20% for cotton and 8-12% for polyester) to help you secure the correct volume of feedstock for your recycled runs.
For mechanical recycling of cotton rags, a 15% to 22% loss is standard. The process of shredding naturally breaks longer fibers into shorter "noils" which cannot be spun into high-quality thread.
No. In any mechanical recycling process, there is a technical limit. Chemical recycling of polyester (rPET) has a much higher yield (95%+) compared to mechanical cotton shredding.