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Regenerated Polyester Staple Fiber Linear Density
May 31, 2017

"People's Republic of China Textile Industry Standard: Recycled Polyester Staple Fiber (FZ / T 52010-2009)" specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements of recycled polyester staple fibers. This standard is suitable for the production of recycled polyester as raw material by melt spinning, the linear density of 0.9dtex ~ 11.1dtex yarn and non-woven recycled polyester staple fiber and the linear density of 2.8dtex ~ 27.8dtex filling with silicon or Quality Evaluation of Silicone - free Polyester Staple Fiber. The recycled polyester staple fibers whose linear density is not within the above range may be used in reference. Other types of recycled polyester staple fibers can also be used.

1 Scope 

This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for recycled polyester staple fibers.

This standard is suitable for the production of recycled polyester as raw material by melt spinning, the linear density of 0.9 dtex ~ 11.1 dtex yarn and non-woven recycled polyester staple fiber and the linear density of 2.8 dtex ~ 27.8 dtex filling with silicon or Quality Evaluation of Silicone - free Polyester Staple Fiber. The recycled polyester staple fibers whose linear density is not within the above range may be used in reference. Other types of recycled polyester staple fibers can also be used.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Any subsequent revision of the document, which is followed by all amendments (excluding corrigenda) or revisions, shall not apply to this standard. However, parties to agreements based on this standard are encouraged to study the possibility of using the latest version of these documents The For undated references, the latest edition applies to this standard.

Textiles - Properties and test terms for textile and textile materials - Part 1: Fibers and yarns GB / T

GB / T 4146 Textile Terminology (Chemical Fiber Section)

Test method for moisture resistance of chemical fiber GB / T 6503

Test method for oil content of chemical fibers GB / T 6504

Representation and Judgment of Numeric Ratification Rule and Limit Value of GB / T 8170

GB / T 14334 Chemical fiber staple fiber sampling method

Test method for linear density of chemical fiber staple fibers GB / T

Test method for length of chemical fiber staple fibers GB / T 14336

Test method for tensile properties of chemical fiber staple fibers GB / T 14337

Test method for crimp properties of chemical fiber staple fibers GB / T 14338

Test method for defect of chemical fiber staple fibers GB / T 14339

Test method for specific resistance of synthetic short fibers GB / T 14342

FZ / T 50002 Chemical fiber profiled test method

Test method for dry heat shrinkage of FZ / T 50004 polyester staple fibers

FZ / T 50009.1 Three-dimensional curled polyester staple fiber line density test method Single fiber length measurement method

FZ / T 50009.2 Three-dimensional curled polyester staple fiber average length test method Single fiber length measurement method

Test Method for Crimp Performance of Hollow Polyester Staple FZ / T 50009.3

Standard Test Method for Bulk Properties and Fiber Elasticity of Hollow Polyester Staple FZ / T 50009.4.


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