This standard specifies the terms and definitions, product identification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for recycled special-shaped polyester staple fiber products. This standard is applicable to triangular special-shaped sections with a nominal linear density of 1.5 dtex to 11.1 dtex, and cross and circular hollow special-shaped sections with a nominal linear density of 1.5 dtex to 3.2 dtex. Glossy and semi-matte non-filled natural color recycled polyester staple fibers . Other types of recycled special-shaped polyester staple fibers can be used as reference.
FZ/T 52042-2016 Referenced Document
FZ/T 50002 Testing method for shape factor of man-made fiber
FZ/T 50004 Testing method for shrinkage in hot airof polyester staple fibers
FZ/T 50027 Man-made fibres.Test method for determination of the titanium dioxide content
GB/T 14334 Sampling method for man-made staple fibres
GB/T 14335 Testing method for linear density of man-made staple fibres
GB/T 14336 Testing method for length of man-made staple fibers
GB/T 14337 Man-made fibre—Test method for tensile properties of staple fibre*， 2022-04-15 Update
GB/T 14338 Man-made fibre—Test method for crimping performance of staple fibre*， 2022-04-15 Update
GB/T 14339 Testing method for defect of man-made staple fibres
GB/T 14342 Man-made fiber.Test method for specific resistance of staple fibers
GB/T 3291.1 Textiles--Terms of textile material properties and test--Part 1: Fibre and yarn
GB/T 3291.3 Textiles--Terms of textile material properties and test--Part 3: General