Generic fiber name
Also searched as: generic name, generic fibre name, fibre name, fiber name, ISO 2076 name, manufactured fiber generic name
The official name of a fiber class, such as polyester, nylon or elastane, that fiber-content labels in regulated markets must use in place of, or alongside, any trademark.
In detail
Labeling laws identify fibers by class, not by brand. For manufactured fibers, each generic name is tied to a written definition of chemical composition, typically a minimum proportion of a particular repeat unit in the polymer chain. In the United States, 16 CFR 303.7 sets out the generic names and definitions used under the Textile Fiber Products Identification Act and incorporates the names in ISO 2076. In the European Union, the permitted names are listed in Annex I to Regulation (EU) No 1007/2011. Natural fibers are named by their common names, such as cotton or silk, under each jurisdiction's rules.
The science and numbers
Generic definitions are written as compositional thresholds. The US rule defines polyester, for example, by the weight proportion of the chain formed from an ester of a substituted aromatic carboxylic acid, and spandex by the proportion formed from segmented polyurethane. A fiber that meets no existing definition cannot simply adopt a nearby name; a manufacturer can petition the Federal Trade Commission to establish a new one, and PLA (polylactic acid) is among the names now defined in the section. By incorporating ISO 2076:2013, the sixth edition dated 15 November 2013, Section 303.7 lets producers selling in several countries use internationally agreed names. Enforcement ultimately relies on laboratory identification, such as microscopy, solubility behavior and infrared spectroscopy, to check that a fiber matches the definition its label claims.
A practical example
A swimsuit hangtag reads '80% nylon, 20% spandex' and prints a stretch-fiber trademark in smaller type nearby. The generic names carry the regulated information: which polymer classes are present and in what proportions by weight. The trademark only signals a producer's product line. A student comparing two swimsuits should compare generic names and percentages first, then treat any trademark as a separate, producer-specific statement.
What to distinguish
A generic name describes chemistry, not source, quality or impact. 'Polyester' covers virgin and recycled material alike, 'viscose' or 'rayon' says nothing about where the pulp was harvested, and 'bamboo' names a plant, not a generic name for a regenerated cellulose fiber made from it. Vocabulary also differs between jurisdictions, so 'spandex' on a US label and 'elastane' on an EU label can describe the same fiber class.
Origins and history
The legal requirement comes from the Textile Fiber Products Identification Act, approved on 2 September 1958, which directed the Federal Trade Commission to establish generic names for manufactured fibers as new synthetic and regenerated fibers multiplied. The FTC has revised the list over time; it amended Part 303 in a final rule published in February 2020, and the current section incorporates the 2013 edition of ISO 2076. The European list evolved through earlier textile-name directives before being consolidated into Regulation (EU) No 1007/2011.
Related terms
Sources & further reading
- eCFR: 16 CFR 303.7, Generic names and definitions for manufactured fibers
- Federal Register: Rules and Regulations Under the Textile Fiber Products Identification Act (2020)
- EUR-Lex: Regulation (EU) No 1007/2011 on textile fibre names
Technical references reviewed 2026-09-22. Examples are illustrative. Industry organizations and manufacturers describe their own fields; their references are not independent product endorsements. Figures are approximate and depend on the stated test conditions.