This standard specifies a test method for color fastness to perspiration of textiles. This standard is applicable to the color fastness test of various textiles to perspiration. GB/T 3922-1995 Test method for color fastness to perspiration of textiles GB/T3922-1995 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Textiles---Testing method for colour fastness to perspiration
Textiles---Testing method for colour fastness to perspiration This standard is equivalent to the international standard ISO105/E04-1994 & Textiles---with appropriate modifications and some additions in operation. 1 Subject content and scope of application
This standard specifies a test method for colour fastness to perspiration of textiles. This standard is applicable to the test of colour fastness to perspiration of various textiles. 2 Reference standards
GB250 Grey scale for assessing change in colour
GB251 Grey scale for assessing staining
GB6151 General rules for testing colour fastness of textiles
GB7546～7568 Standard adjacent fabric specifications GB11404 Specifications for multi-fibre adjacent fabrics
3 Principle
Test for colour fastness
GB/T 3922—1995
Replaces GB3922-83
- Colour fastness to perspiration", arrangement
Combine the textile sample with the specified adjacent fabric, place them in two different test solutions containing histidine, treat them separately, remove the test solutions, place them between two plates with specified pressure in the test device, and then separate the sample and adjacent fabric. Use the grey scale to assess the colour change of the sample and the staining of the adjacent fabric. 4 Equipment and Materials
4.1 Test equipment: including a stainless steel frame; a set of weights weighing about 5kg and with a bottom area of ​​about 11.5cm×6cm (including a spring pressure plate) and a glass plate or acrylic resin plate with a size of about 11.5cm×6cm and a thickness of 0.15cm, and a 10cm×4cm composite sample sandwiched in the middle of the plate. The structure of the instrument should ensure that the sample is under pressure of 12.5kPa (see Appendix B (reference)). 4.2 Constant temperature box: keep the temperature at 37±2℃, without ventilation device. 4.3 Reagents
L-histidine hydrochloride monohydrate (CHO,N,·HCIH,O): b.
sodium chloride (NaCI), chemically pure;
sodium dihydrogen phosphate dodecahydrate (Na2HPO,·12H,O) or disodium dihydrogen phosphate dihydrate (NazHPO,·2H,O), chemically pure, d.
sodium hydroxide (NaOH), chemically pure.
4.4 Adjacent fabrics: Each combined test specimen requires two pieces, each with a size of 10cm×4cm. The first piece is made of the same fiber as the test specimen, and the second piece is made of the fiber specified in the table below. If the test specimen is a blended or interwoven fabric, the first piece shall be made of the main fiber content and the second piece shall be made of the secondary fiber content.
First adjacent fabric
Second adjacent fabric
Or a multi-fiber adjacent fabric.
4.5 Grey scale for evaluating color change and staining. 5 Test specimens
First adjacent fabric
Polyamide fiber
Polyester fiber
Acrylic fiber
Second adjacent fabric
Wool or viscose
Wool or cotton
Wool or cotton
5.1 If the test specimen is a fabric, take a 10 cm × 4 cm test specimen and sandwich it between two adjacent fabrics (see 4.4), or attach it to a multi-fiber adjacent fabric and sew it along one short edge to form a combined test specimen. Two combined test specimens are required for the entire test. When testing printed fabrics, the front side is in contact with half of each of the two adjacent fabrics, and the remaining half is cut off and placed crosswise on the back side, and the two short sides are sewn. Or it is placed in contact with a multi-fiber adjacent fabric and one short side is sewn. If all colors cannot be included, multiple combined samples are required. 5.2 If the sample is yarn or loose fiber, take about half of the total mass of the adjacent fabric and sandwich it between two single-fiber adjacent fabrics, or sandwich it between a 10cm×4cm multi-fiber adjacent fabric and a piece of undyed fabric of the same size and sew the four sides. The entire test requires two combined samples.
6 Preparation of test solution
The test solution is prepared with distilled water and is used immediately after preparation. The alkali solution contains:
L-histidine hydrochloride hydrate (C,HO,N·HCl·H,O) Sodium chloride (NaCI)
Sodium hydrogen phosphate dodecahydrate (Na2HPO,·12H,O) Sodium hydrogen phosphate dihydrate (Na2HPO2H,O) Use c(NaOH)=0.1mal/L sodium hydroxide solution to adjust the pH value of the test solution to the acid solution contains:
L-histidine hydrochloride monohydrate (C,HO,N·HCl· H,O) Sodium chloride (NaCI)
Sodium dihydrogen phosphate dihydrate (NaH,PO4·2H,O) Use c(NaOH)=0.1mol/L sodium hydroxide solution to adjust the pH value of the test solution to 7. Operation procedure
7.1 Place a composite sample in the acid and alkali test solutions with a bath ratio of 50:1 (see Chapter 6) respectively, and make it completely wet. Then place it at room temperature for 30 minutes. If necessary, slightly remove pressure and pull it to ensure that the test solution can penetrate well and evenly. Take out the sample, pour off the residual liquid, use two glass rods to clamp the excess test solution on the composite sample, or place the composite sample on the sample plate, use another sample plate to scrape off the excess test solution, and clamp the sample between the two sample plates. Use the same steps to place other composite samples, and then press the sample to 12.5kPa. The instruments used for alkali and acid tests should be separated. 7.2 Place the two sets of instruments with the combined sample in a thermostatic box at 37 ± 2°C for 4 hours. 42
GB/T3922—1995
7.3 Remove all the stitches except one short side of the combined sample, unfold the combined sample, and hang it in air at a temperature not exceeding 60°C to dry.
7.4 Use the gray sample card to evaluate the color change of each sample and the staining of the adjacent fabric in contact with the sample. 8 Test report
Report the color change of the sample in the acid and alkali test solution and the staining level of each adjacent fabric separately. 43
GB/T 3922-1995
Appendix A
Quick test method for perspiration 1bzxZ.net
(reference)
A1 This method is used for the color fastness test of textiles to perspiration, as a non-arbitrary test method of the GB/T3922 standard method. A21
Equipment and materials, same as Chapters 4, 5 and 6 of this standard. The oven should be able to maintain a temperature of 70±2℃. A3 Operation
Raise the oven temperature to 70±2℃, and heat the perspiration meter at the same time. Place the combined specimens soaked in the test solution on the clamping plate one by one, scrape off the excess liquid, cover the clamping plate, align and place the spring pressure plate, loosen the support screw when adding the weight hammer, so that the specimen is subjected to a pressure of 12.5kPa, tighten the support screw and remove the weight hammer block, and treat at 70℃ for 60min. A4 Report
Evaluate the discoloration of the sample in the acid and alkali solution and the staining of each adjacent fabric respectively, select the most serious discoloration and staining level, and make a report.
Appendix B
Test equipment
(reference)
B1 Applicable test equipment includes:
SYG7001 perspiration color fastness tester, see "Textile Standard Newsletter" No. 3, 1983; YG631 perspiration color fastness tester, see "Textile Standard Newsletter" No. 3, 1983; Hydrotest;
Perspiration Tester Perspiration Tester (Perspirometer).
B2 Other test equipment is also applicable as long as it can achieve the same effect as the equipment described in 4.1. Adoption instructions:
1] This content is not included in the international standard and is newly added by my country. Additional Notes:
This standard was proposed by the China National Textile and Apparel Council.
This standard is under the jurisdiction of the Standardization Research Institute of the China National Textile and Apparel Council. This standard was jointly drafted by the Shanghai Textile Standard and Metrology Research Institute, the Shanghai Wool and Linen Research Institute, and the Shanghai Silk Research Institute. The main drafters of this standard are Xu Jieshou, Xin Min, Li Ming, and Hu Minmin. This standard was formulated in 1983 and revised in 1995. 4
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