This standard specifies the terms and definitions of nylon (polyester)/spandex double-wrapped yarn for knitting, product specification expression methods, requirements, testing, judgment rules, labeling, packaging, transportation and storage. This standard is applicable to a thread formed by using a single spandex filament as the core thread under a certain draft ratio and covered with two layers of nylon (polyester) filament with different twist directions. Products coated with elastic yarn and other products of the same type can refer to this. This standard does not apply to double-wrapped wire products for special purposes or industrial use.
FZ/T 71010-2016 Referenced Document
FZ/T 01095 Textile - Test method of elastane fibre content
FZ/T 10008 Cotton and chemical fiber pure and blended yarn marking and packaging*， 2018-10-22 Update
FZ/T 50005-2013 Testing method for linear density of spandex filament yarns
FZ/T 50006 Testing method for tencity of spandex filament yarns
GB 18401 National general safety technical code for textile products
GB 5296.4 Instructions for use of products of consumer interest.Part 4:Textiles and apparel
GB/T 14343 Testing method for linear density of man-made filament yarns
GB/T 17592 Textiles Determination of banned azo dyes*， 2024-03-15 Update
GB/T 250 Textiles.Tests for colour fastness.Grey scale for assessing change in colour
GB/T 2543.1 Textiles.Determination of twist in yarns.Part 1:Direct counting method
GB/T 2910 Textile--Binary fibre mixtures--Quantitative chemical analysis
GB/T 29862 Textiles—Identification of fibre content
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
GB/T 3920 Textiles.Tests for colour fastness.Colour fastness to rubbing
GB/T 3921-2008 Textiles.Tests for colour fastness.Colour fastness to washing with soap or soap and soda
GB/T 3922 Textiles.Tests for colour fastness.Colour fastness to perspiration
GB/T 5713 Textiles.Tests for colour fastness.Colour fastness to water
GB/T 6502 Sampling method of man-made filament yarns
GB/T 6529 Textiles.Standard atmospheres for conditioning and testing
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values