1 Scope
This standard specifies the testing method for crimping performance of man-made staple fibres.
This standard is applicable to the determination of crimping performance of chemical staple fibres including polyester fibre, polyamide fibre, acrylic fibre, polypropylene fibre, polyvinyl formal (vinylon) fibre, cellulosic fibre, etc.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 3291.1 Textiles - Terms of Textile Material Properties and Test - Part 1: Fibre and Yarn
GB/T 6529 Standard Atmospheres for Textiles Conditioning and Testing
GB/T 8170 Rules for Rounding off of Numerical Values
GB/T 14334 Sampling Method for Man-made Staple Fibres
3 Terms and Definitions
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Theory
5 Instruments and Tools
6 General Test Principle
7 Test Procedure
8 Result Calculation
9 Data Rounding-off
10 Test Report
Annex A (Informative) Rapid Conditioning Time
Annex B (Informative) Calculation Method for Pre-tension
Annex C (Normative) Statistics - Terminologies and Calculation
Annex D (Informative) Count of Crimp Frequency
