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This Standard was drafted according to the rules specified in GB/T 1.1-2009.
This Standard replaces GB/T 3922-1995 " Textiles - Testing method for colour fastness to perspiration". Compared with GB/T 3922-1995, the main changes in this Standard are as follows:
— Standard name was changed into "Textiles - Tests for colour fastness — Colour fastness to perspiration";
— In Chapter 2 "Normative Reference", add GB/T 6682, GB/T 13765, FZ/T 01023 and FZ/T 01024; GB 7546 to GB 7568 and GB 11401 were replaced with GB/T 7568.1 to GB/T 7568.7;
— Add the allowable tolerance for the pressure of test device;
— Add the second and third paragraphs of 4.1;
— The requirements of "no ventilating device" were deleted;
— Chapter 6 "Test Solution Preparation" of the original standard was incorporated into Chapter 4, and the chapter and article numbers hereafter were extended accordingly;
— Distilled water used for test solution preparation was changed into Grade 3 water;
— Add the allowable tolerance of pH value of test solution;
— Series numbers of articles of Chapter 4 were adjusted; and add 4.8 to 4.13;
— Add the note of 6.1;
— Add the position and schematic diagram of composite specimens in 6.2;
— Add the second and the optional assessment method (instrumentally) in 6.4;
— Test report was changed into inclusion of items; add items a), b) and f), as well as the types of multifibre adjacent fabrics;
— Appendix A and Appendix B were deleted.
This Standard was redrafted on the base of ISO 105-E04:2013 "Textiles — Tests for colour fastness — Part E04: Colour fastness to perspiration" (English edition). Compared with ISO 105-E04:2013, the main differences in this Standard are as follows:
— Foreword of the international standard was deleted;
— International standards in Chapter 2 "Normative References" were replaced with corresponding national standards and industry standards of China; GB/T 13765 was added;
— Add standard adjacent fabric hemp in Table 1;
— Reagents used in 4.3 and 4.4 were specified as chemically pure;
— 4.11 to 4.13 were added;
— Preparation requirements of composite specimens of printing fabrics were added in 5.1.
This standard is proposed by China National Textile and Apparel Council.
This Standard is under the jurisdiction of the Basic Standard Subcommittee of Technical Committee 209 on Textiles of Standardization Administration of China (SAC/TC 209/SC 1).
Drafting organizations of this Standard: Shanghai Textile Industry Institute of Technical Supervision, Standardization Research Institute of Textile Industry, Shanghai Wool & Jute Textile Research Institute and Shanghai Silk Group Co., Ltd.
Chief drafting staff of this Standard: Chen Xiaocheng, Liu Yunjin, Si Ying, Wang Jiqiang and Zhu Yicheng.
The previous editions of standards replaced by this Standard are as follows:
— GB/T 3922-1983, GB/T 3922-1995.
Textiles — Tests for Colour Fastness — Colour Fastness to Perspiration
紡織品 色牢度試驗 耐汗漬色牢度
1 Scope
This Standard specifies a method for determining the resistance of the colour of textiles of all kinds and in all forms to the action of human perspiration.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 250 Textiles — Tests for colour fastness — Grey scale for assessing change in colour (GB/T 250-2008, ISO 105-A02:1993, IDT)
GB/T 251 Textiles — Tests for colour fastness — Grey scale for assessing staining (GB/T 251-2008, ISO 105-A03:1993, IDT)
GB/T 6151 Textiles-Tests for colour fastness — General principle of testing (GB/T 6151-1997, eqv ISO 105-AOl:1994)
GB/T 6682 Water for analytical laboratory use — Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
GB/T 7568.1 Textiles — Tests for colour fastness — Specification for wool adjacent fabric (GB/T 7568.1-2002, ISO 105-F01:2001, MOD)
GB/T 7568.2 Textiles — Tests for colour fastness — Standard adjacent fabrics — Part 2: Cotton and viscose (GB/T 7568.2-2008, ISO 105-F02:2008, MOD)
GB/T 7568.3 Textiles — Tests for colour fastness — Standard adjacent fabrics — Part 3: Polyamide (GB/T 7568.3-2008, ISO 105-F03:2001, MOD)
GB/T 7568.4 Textiles — Tests for colour fastness — Specification for polyester adjacent fabric (GB/T 7568.4-2002, ISO 105-F04:2001, MOD)
GB/T 7568.5 Textiles — Tests for colour fastness — Specification for acrylic adjacent fabric (GB/T 7568.5-2002, ISO 105-F05:2001, MOD)
GB/T 7568.6 Textiles — Tests for colour fastness — Specification for silk adjacent fabric (GB/T 7568.6-2002, ISO 105-F06:2000, MOD)
GB/T 7568.7 Textiles — Tests for colour fastness — Standard adjacent fabrics — Part 7: Multifibre (GB/T 7568.7-2008, ISO 105-F10:1989, MOD)
GB/T 13765 Textiles — Tests for colour fastness — Specification for standard adjacent fabric of linen and ramie
FZ/T 01023 Method for the instrumental assessment of the degree of staining of adjacent fabrics (FZ/T 01023-1993, neq ISO 105-A04:1989)
FZ/T 01024 Instrumental assessment of change in colour for determination of grey scale rating (FZ/T 01024-1993, neq ISO 105-A05:1992)
3 Principle
Specimens of the textile in contact with adjacent fabrics are treated in two different solutions containing histidine, drained and placed between two plates under a specified pressure in a test device. The specimens and the adjacent fabrics are dried separately. The change in colour of each specimen and the staining of the adjacent fabrics are assessed by comparison with the grey scales or instrumentally.
4 Apparatus and Materials
4.1 Test devices
Each consisting of a frame of stainless steel into which a weight-piece of mass approximately 5 kg and base 60 mm × 115 mm is closely fitted, so that a pressure of (12.5 ± 0.9) kPa can be applied on test specimens measuring (40 ± 2) mm × (100 ± 2) mm, placed between glass or acrylic-resin plates measuring approximately 60 mm × 115 mm × 1.5 mm. The test device shall be constructed so that, if the weight-piece is removed during the test, the pressure remains unchanged.
If the dimensions of the composite specimen differ from the size of (40 ± 2) mm × (100 ± 2) mm, the weight-piece used shall be such that a nominal pressure of (12.5 ± 0.9) kPa is applied to the specimen.
Other devices may be used provided that equivalent results are obtained.
4.2 Oven
Maintained at (37 ± 2) ℃.
4.3 Alkaline solution
All reagents used shall be chemically pure and freshly prepared, using grade 3 water complying with GB/T 6682, containing, per litre:
— 0.5 g of l-histidine monohydrochloride monohydrate (C6H9O2N3·HCl·H2O);
— 5 g of sodium chloride (NaCl);
— 5 g of disodium hydrogen orthophosphate dodecahydrate (Na2 HPO4·12H2O); or
— 2.5 g of disodium hydrogen orthophosphate dihydrate (Na2HPO4·2H2O).
The solution is brought to pH 8.0±0.2 with 0.1 mol/L sodium hydroxide solution.
4.4 Acid solution
All reagents used shall be chemically pure. Freshly prepared, using grade 3 water complying with GB/T 6682, containing, per litre:
— 0.5 g of l-histidine monohydrochloride monohydrate (C6H9O2N3·HCl·H2O);
— 5 g of sodium chloride (NaCl);
— 2.2 g of sodium dihydrogen orthophosphate dihydrate (NaH2PO4·2H2O).
The solution is brought to pH 5.5 (±0.2) with 0.1 mol/L sodium hydroxide solution.
