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See Chinese contents: FZ/T 54059-2012 FZ/T 54059-2012: Polyester and polyamide composite partially oriented yarns
This Standard specifies the terms and definitions, product marking, technical requirements, test methods, inspection rules and marks, packaging, transportation, and storage of the polyester and polyamide composite partially oriented yarns. This Standard applies to segmented polyester and polyamide composite partially oriented yarns - total linear density is 60 dtex - 600 dtex; linear density per filament is 1.70 dtex - 5.60 dtex; polyester and polyamide proportional range is 90/10 to 65/35; with circular cross section, natural color, and bright and semi dull. This Standard applies to sheath-core polyester and polyamide composite partially oriented yarns with 100 dtex to 390 dtex total linear densities, 1.60 dtex to 6.50 dtex linear density per filament, 85/15 to 50/50 polyester and polyamide proportional range, circular cross section, which are also naturally colored, bright and semi dull. This Standard applies to partially oriented yarns that are manufactured by the composite spinning process with polyester (PET) and polyamide (PA6). Other polyester and polyamide composite partially oriented yarns may reference to this Standard.
