This calibration is effective as of March 1, with mandatory implementation by July 1, 2025. It provides clarity on the exclusion of additives from the material composition and outlines the methodology for accounting for their presence by weight in the transaction certificates (TCs).
For the purpose of this calibration, additives are defined as non-fiber and non-polymer substances added to textile products to change or improve the properties that exist in the output product. These additives are added directly or together with a carrier polymer.
To support this calibration, two new data fields, "tcProductAdditives" and "tcProductAdditivesWeight", have been created. These fields do not appear on PDF TC at this time but are included in the TC data submission and will be included in the PDF as part of the next major revision to the TC Policy.
Prior to the fabric stage, specific processes may involve the use of considerable amounts of additives, such as pigments, TiO₂, ceramic, charcoal, etc. This may potentially lead to the output weight exceeding the input weight, especially in processes with minimal process loss.
Since additives are not fiber raw materials, they shall be excluded from the material composition. When additives exceed 1% of the net weight, the following shall apply:
- "tcProductInfoAdditional" shall include the text "Additives = X kg", where X is the total weight of additives in kilograms. This should be followed by the name of the additive(s).
- In data submissions, "tcProductAdditives" should contain the name of the additive(s) (separated by a semicolon if more than one).
- In data submissions, "tcProductAdditivesWeight" shall contain the total quantity of the additive(s) in kilograms.
When additives are incorporated using a polymer carrier, the polymer itself shall not be considered an additive, and must be included into the material composition.
In the case of masterbatch use, the pigments may be considered additives, but the polymer in the masterbatch shall not be considered to be an additive. Similarly, for flakes used as a carrier, only the additive should be considered. For simplicity, if the total weight of the masterbatch or flake carrying the additives does not exceed 1% of the net weight, it may be treated as an additive in its entirety.
When an input product includes additives on the input TC, the additives weight shall be ignored in calculating the material composition for the subsequent output TC.
Example: A product has inputs of 950 kg post-consumer polyester and 50 kg polyester masterbatch (40% polyester, 60% pigments), with a 0% loss factor for simplicity.
- Material composition: 98% post-consumer polyester (RM0189) + 2% polyester (RM0186)
- Net weight: 1000 kg
- Certified weight: 950 kg
- tcProductInfoAdditional: "Additives = 30 kg pigments"
- tcProductAdditivesWeight: 30 kg
- tcProductAdditives: pigments
The subsequent TC is based on an input of 1000 kg composed of 98% post-consumer polyester (RM0189) + 2% polyester (RM0186).
Additives used in dyeing, printing, and finishing do not require declaration unless they involve heavy prints such as flock. In these cases, the approach outlined above applies.
Additives in special fabrics (e.g., coating, lamination, impregnation) are treated as components and Calibration 262 applies, while heavy prints and adhesives at the final stage are considered trims and Calibration 268 applies.
Access the calibration log
here.