FZ/T 22002-2021Woolen wool woven yarn (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces FZ/T 22002-2010 "Carding Machine Weaving Yarn". Compared with FZ/T 22002-2010, the main technical changes are as follows.

---Modified the normative reference documents (see Chapter 2, Chapter 2 of the 2010 edition);

---The classification regulations have been revised (see 4.2, 3.2 in the 2010 edition);

---Modified the classification regulations for high-count yarn, medium-count yarn and low-count yarn (see 4.3.2, Appendix A.3 of the 2010 edition);

---Modified the index requirements for twist deviation rate, twist variation coefficient, average breaking strength of single yarn, and grease content (see Table 1,

Table 1 of the 2010 edition);

---Modified the lining regulations for color fastness (see Table 2, Table 2 of the 2010 edition);

---Modified the index requirements for light fastness and rubbing fastness (see Table 2, Table 2 of the 2010 edition);

---Canceled the assessment requirements for color fastness to ironing (see Table 2 of the 2010 edition);

---Added the assessment of physical quality (see 4.4.1);

---Modified the test method of light fastness (see 5.2.1, Chapter 4 of the 2010 edition);

---Revised the appearance defect assessment items and defect descriptions and measuring methods (see 4.4.2, Appendix A, 3.4 and Appendix A.4 of the 2010 edition).

This document was proposed by the China National Textile and Apparel Council.

This document is under the jurisdiction of the Wool Textile Subcommittee of the National Textile Standardization Technical Committee (SAC/TC209/SC3).

1 Scope

This document specifies the technical requirements, test methods, inspection rules, packaging, markings, etc. of carded wool yarn.

This document is suitable for appraising the quality of carded woven pure wool, wool blended yarn and wool type chemical fiber yarn.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 4841.3 Standard Depth Color Card for Dyestuffs 2/1, 1/3, 1/6, 1/12, 1/25 GB/T 8427-2019 Textile color fastness test Color fastness to artificial light. xenon arc GB/T 9994 Textile Material Conventional Moisture Regain GB 18401 National Basic Safety Technical Code for Textile Products GB/T 29862 Labeling of textile fiber content GB 31701 Safety technical specifications for infant and children textile products FZ/T 20017 Wool yarn test method

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Technical requirements