**Foreword**

This document was drafted in accordance with the rules given in GB/T 1.1-2020 "Directives for standardization — Part 1: Rules for the structure and drafting of standardizing documents".

This document replaces FZ/T 14004-2014 "Viscose fiber printed and dyed fabric", FZ/T 14012-2022 "Bamboo pulp viscose fiber printed and dyed fabric", FZ/T 14013-2018 "Modal fiber printed and dyed fabric", and FZ/T 14014-2019 "Lyocell fiber printed and dyed fabric". This document is based primarily on FZ/T 14004-2014, incorporating the contents of FZ/T 14012-2009, FZ/T 14013-2018, and FZ/T 14014-2019.

Compared with FZ/T 14004-2014, the main technical changes are as follows:

— The document title has been changed to "Printed and dyed regenerated cellulose fiber fabric" (see document title; FZ/T 14004-2014 document title);

— The scope of application has been changed (see Clause 1; Clause 1 of FZ/T 14004-2014);

— For intrinsic quality, an assessment item for mass per unit area deviation rate has been added; requirements for weft density deviation rate, dimensional change after washing, breaking strength, and some color fastness items have been changed (see Table 1; Table 1 of FZ/T 14004-2014);

— The provisions for localized defect scoring, localized defect scoring descriptions, defect descriptions for superior grade, and description of damaging defects for first grade have been deleted (see 5.4.2, 5.4.3, 5.4.5, 5.4.6 of FZ/T 14004-2014);

— The provisions for allowable localized defect scoring, color difference, skewness requirements have been changed; for distributed defects, assessment requirements for neps and foreign matter, and deep and light fine spots have been added (see Table 2; 5.4.1, Table 4 of FZ/T 14004-2014);

— The content on appearance quality inspection conditions and methods has been deleted (see 6.2 of FZ/T 14004-2014);

— Appendix A has been changed to an informative appendix (see Appendix A; Appendix A of FZ/T 14004-2014).

Please note that some contents of this document may be the subject of patent rights. The issuing organization of this document does not assume responsibility for identifying these patents.

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

This document is under the jurisdiction of the Subcommittee on Dyed and Printed Products of the National Technical Committee on Textiles Standardization (SAC/TC 209/SC 11).

Drafting organizations of this document: Huafang Co., Ltd., Nantong Jinshida High-tech Industrial Co., Ltd., Yuyuan Home Textile Co., Ltd., Hangzhou Zhuoda Dyeing and Finishing Co., Ltd., Jiangsu Golden Sun Textile Technology Co., Ltd., Lufeng Weaving and Dyeing Co., Ltd., Zhejiang Fuyun Printing and Dyeing Co., Ltd., Zhejiang Haoyu Technology Co., Ltd., Shandong Zhongkang Guochuang Advanced Printing and Dyeing Technology Research Institute Co., Ltd., Hebei Ningfang Group Co., Ltd., Shandong Weiqiao Extra-wide Printing and Dyeing Co., Ltd., Xuancheng Kaiou Textile Co., Ltd., Jiangsu Lianfa High-end Textile Technology Research Institute, Shanghai Textile Industry Supervision Institute, China Dyeing and Printing Association.

Main drafters of this document: Sheng Shouxiang, Yang Yuhua, Ou Weiguo, Dou Xiaozhe, Ying Hao, Ding Kejing, Zong Rui, Wang Yifeng, Xu Sujie, Liu Gaofeng, Xu Jianlin, Liu Wenhui, Lu Yinhui, Wang Yuxia, Liu Lingling, Liu Tiantao.

The previous versions of the documents replaced by this document are as follows:

— FZ/T 14004-1995 (First release in 1995), first revision in 2006, second revision in 2014;

— FZ/T 14012-2009 (First release in 2009), first revision in 2022;

— FZ/T 14013-2009 (First release in 2009), first revision in 2018;

— FZ/T 14014-2009 (First release in 2009), first revision in 2019;

— This is the third revision.

**Printed and dyed regenerated cellulose fiber fabric**

**1 Scope**

This document specifies the terms and definitions, classification, requirements, test and inspection methods, inspection rules, marking, and packaging for printed and dyed regenerated cellulose fiber fabrics.

This document is applicable to various types of bleached, dyed, and printed fabrics made from viscose fiber, modal fiber, lyocell fiber, or bamboo pulp viscose fiber as raw materials, produced through weaving, from the same type of regenerated cellulose fiber.

**2 Normative References**

The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.

GB/T 250 Textiles — Tests for colour fastness — Grey scale for assessing change in colour

GB/T 411 Cotton printed and dyed fabrics

GB/T 3917.1 Textiles — Tear properties of fabrics — Part 1: Determination of tear force using ballistic pendulum method (Elmendorf)

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 3922-2013 Textiles — Tests for colour fastness — Colour fastness to perspiration

GB/T 3923.1 Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and elongation at maximum force using the strip method

GB/T 4666 Textiles — Determination of length and width of fabrics

GB/T 4668 Textiles — Determination of density of woven fabrics

GB/T 4669-2008 Textiles — Woven fabrics — Determination of mass per unit length and mass per unit area

GB/T 4841.3 Colour cards for standard depths of dyeing — 2/1, 1/3, 1/6, 1/12, 1/25

GB/T 6152-1997 Textiles — Tests for colour fastness — Colour fastness to hot pressing

GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values

GB/T 8427-2019 Textiles — Tests for colour fastness — Colour fastness to artificial light: Xenon arc fading lamp test

GB/T 8628 Textiles — Preparation, marking and measuring of fabric specimens and garments in tests for determination of dimensional change

GB/T 8629-2017 Textiles — Domestic washing and drying procedures for textile testing

GB/T 8630 Textiles — Determination of dimensional change after washing and drying

GB/T 14801 Test method for skewness and bow in woven and knitted fabrics

GB/T 17760-2019 Test method for appearance defects of printed or dyed fabrics

GB 18401 National general safety technical code for textile products

GB 31701 National safety technical code for infants and children textile products

FZ/T 10005 Inspection rules for printed and dyed pure cotton and chemical fiber fabrics and their blends

FZ/T 10010 Marking and packaging for printed and dyed pure cotton and chemical fiber fabrics and their blends

**3 Terms and Definitions**

For the purposes of this document, the terms and definitions given in GB/T 411 and the following apply.

3.1 printed and dyed regenerated cellulose fiber fabric

woven fabric produced using regenerated cellulose fiber yarns as raw material, processed through dyeing and finishing.

**4 Classification**

Printed and dyed regenerated cellulose fiber fabrics are classified by type and specification. The type and specification shall be determined according to the supply and purchase contract between the supplier and buyer. The processing coefficient for printed and dyed regenerated cellulose fiber fabrics shall refer to Appendix A.

**5 Requirements**

5.1 Grading provisions

    5.1.1 Product grades are classified as superior grade, first grade, and second grade. Products below second grade are considered substandard.

    5.1.2 Product quality includes intrinsic quality and appearance quality. The final grade is determined by the lower grade between intrinsic quality and appearance quality.

5.2 Intrinsic quality

    5.2.1 Products shall comply with the requirements of GB 18401 or GB 31701.

    5.2.2 Grading provisions for intrinsic quality are specified in Table 1.

**Table 1 — Grading provisions for intrinsic quality**

(Table 1 placeholder)

5.3 Appearance quality

    5.3.1 Requirements for appearance quality: Grading provisions for appearance quality are specified in Table 2.

**Table 2 — Grading provisions for appearance quality**

(Table 2 placeholder)

    5.3.2 The total allowable score for localized defects per piece of fabric shall be calculated according to formula (1) and rounded to the nearest integer according to GB/T 8170.

        ( A = a imes (L imes w) / 100 ) ... (1)

        Where:

        A — Total allowable score for localized defects per piece (roll) of fabric, in points;

        a — Allowable score for localized defects, in points per 100 square meters (points/100m²);

        L — Length of the piece (roll), in meters (m);

        w — Standard width, in meters (m).

    5.3.3 Provisions for simulated cutting and joint pieces

        5.3.3.1 Simulated cutting is not permitted for superior grade products.

        5.3.3.2 Defects subject to simulated cutting shall be those scored as 4 points or serious defects scored as 3 points. After simulated cutting, each resulting segment shall be of first grade.

        5.3.3.3 If permitted by the user, simulated cutting or joint pieces may be implemented. Simulated cutting is not permitted within 5 m of the fabric ends or for pieces shorter than 30 m. The minimum length for joint pieces shall not be less than 10 m. Simulated cutting shall not exceed 2 locations per 60 m; for every additional 30 m in length, one additional simulated cutting location may be allowed accordingly.

        5.3.3.4 The combined rate of simulated cutting and joint pieces shall not exceed 20%, of which the joint piece rate shall not exceed 10%.

        5.3.3.5 Simulated cutting locations shall be clearly marked, and a record sheet of the lengths of segments after simulated cutting shall be attached.

**6 Test and Inspection Methods**

6.1 Density test method shall be carried out according to GB/T 4668. The weft density deviation rate shall be calculated according to formula (2) and rounded to one decimal place according to GB/T 8170.

    ( e = [(D_N - D_W) / D_N] imes 100 ) ... (2)

    Where: 

    e — Weft density deviation rate, in percent (%);

    D_N — Nominal value of weft density of the printed and dyed regenerated cellulose fiber fabric, in number per 10 centimeters (ends/10cm);

    D_W — Measured value of weft density of the printed and dyed regenerated cellulose fiber fabric, in number per 10 centimeters (ends/10cm).

    Note: The nominal weft density is the customer's requirement or the fabric design value, implemented according to the supply and purchase contract.

6.2 The test method for mass per unit area shall be carried out according to Method 6 in GB/T 4669-2008. The mass per unit area deviation rate shall be calculated according to formula (3) and rounded to one decimal place according to GB/T 8170.

    ( G = [(m - m_t) / m] imes 100 ) ... (3)

    Where: 

    G — Mass per unit area deviation rate, in percent (%);

    m — Nominal value of mass per unit area of the printed and dyed regenerated cellulose fiber fabric, in grams per square meter (g/m²);

    m_t — Measured value of mass per unit area of the printed and dyed regenerated cellulose fiber fabric, in grams per square meter (g/m²).

    Note: The nominal mass per unit area is the customer's requirement or the fabric design value, implemented according to the supply and purchase contract.

6.3 Breaking strength test method shall be carried out according to GB/T 3923.1.

6.4 Tearing strength test method shall be carried out according to GB/T 3917.1.

6.5 Dimensional change after washing test method shall be carried out according to GB/T 8628, GB/T 8629-2017 (using Type A washing machine, washing program 4G, drying program A), and GB/T 8630.

6.6 Colour fastness to light test method shall be carried out according to Method 3 in GB/T 8427-2019.

6.7 Colour fastness to washing with soap test method shall be carried out according to A(1) (single fiber adjacent fabric) in GB/T 3921-2008.

6.8 Colour fastness to rubbing test method shall be carried out according to GB/T 3920.

6.9 Colour fastness to perspiration test method shall be carried out according to GB/T 3922-2013, using single fiber adjacent fabric.

6.10 Colour fastness to hot pressing test method shall be carried out according to the damp pressing method in GB/T 6152-1997, at a temperature of 110°C ± 2°C.

6.11 Width test method shall be carried out according to GB/T 4666.

6.12 Colour difference shall be assessed according to GB/T 250.

6.13 Skewness (pattern skew or weft skew, check pattern skew or check weft skew) test method shall be carried out according to GB/T 14801.

6.14 Localized defects shall be inspected using the scoring method according to GB/T 17760-2019. Distributed defects shall be inspected according to GB/T 17760-2019.

**7 Inspection Rules**

Inspection rules shall be carried out according to FZ/T 10005.

**8 Marking and Packaging**

Marking and packaging shall be carried out according to FZ/T 10010.

**9 Others**

For special varieties or products with special requirements specified by the user, the details shall be agreed upon in the supply and purchase contract between the supplier and buyer.

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*Source: People's Republic of China Textile Industry Standard FZ/T 14004-2024 Replaces FZ/T 14004-2014, FZ/T 14012-2022, FZ/T 14013-2018, FZ/T 14014-2019*