The model is changing real-world business.Shaw Industries, for example, has examined the material chemistry of its carpet fibre and backing to assess the healthfulness of its dyes, pigments, finishes and auxiliaries – everything that goes into carpet tile. Out of this rigorous process has come the promise of a fully optimized technical nutrient. Shaw now guarantees that all its nylon 6 carpet fibre will be taken back and returned to nylon 6 fibre, and its safe polyolefin backing returned to safe polyolefin backing.