Traceability Check
Supply chain auditing processes for sustainable textiles confirm the presence and percentage of recycled fibers in finished goods. Through recycled content verification, independent bodies analyze transaction certificates and production logs to track the flow of materials from the recycling plant to the garment factory. This documentation confirms that the final fabric contains the claimed amount of post-consumer or post-industrial waste.
The audit protects brands from greenwashing claims and builds consumer confidence.
Laboratory Test
Complementing the paper trail, laboratory analysis can differentiate recycled polyester from virgin material by analyzing trace contaminants or polymer chain lengths. Technicians use thermal analysis to measure the crystalline structure of the fibers. This physical test provides supportive evidence to confirm the chain-of-custody documents.
Combining document reviews with physical testing creates a reliable verification system.
Certification Benefit
Mills that successfully pass this verification obtain the right to use international recycling labels on their products. This certification allows them to charge a premium for their sustainable fabrics. It also helps apparel brands meet their environmental goals.
Audit Standard
Periodic audits of the manufacturing site are conducted annually to ensure that recycled fibers are never mixed with uncertified materials during spinning. The storage areas for recycled raw materials must be clearly separated from those of virgin fibers. This segregation ensures the integrity of the recycled material stream from start to finish.
