This standard specifies the fourth test in a series of five tests for color fastness to washing and has been established as a test method for color fastness to washing of colored textiles. This series of tests covers a range of washing operations from mild to severe. GB/T 3921.4-1997 Textiles - Tests for color fastness - Color fastness to washing: Test 4 GB/T3921.4-1997 Standard download decompression password: www.bzxz.net

ICS 59.080.01
National Standard of the People's Republic of China
GB/T3921.4—1997
eqvIso 105-c04:1989
Textiles
Tests for colour fastness
Colour fastness to washing : Test 4
Textiles--Tests for colour fastnessCelour fastness to washing : Test 41997-06-09 Issued
1997-12-01 Implementation
National Technical Bureau
GB/T 3921.4
This standard is equivalent to ISO 105-C01:1989. It is one of the five pre-selected colour fastness test methods. This standard has made the following modifications to GB3921-83: 1. The cover and title format have been revised according to 6B/T1.1-13, the foreword and ISO foreword have been revised, 3 reference standards have been added and the references to 3 foreign test instruments have been deleted, and synthetic detergents have been listed in Appendix B. 2. The unit of length has been changed to m.
3. The water content of the sieve is changed to water content
4. The fabric combination test specimen has been changed from four sides to one short side. If necessary, it shall be specified separately. 5. The use of multi-fiber patch and single-fiber patch has been added. From the date of implementation, this standard will replace the method in GB3921-83. 4. This standard is proposed by the China National Textile and Apparel Council and is under the jurisdiction of the Standardization Research Institute of the China National Textile and Apparel Council. This standard was drafted by the Standardization Research Institute of the China National Textile and Apparel Council, Shanghai Textile Standardization and Metrology Research Institute, and Shanghai Wool and Linen Textile Material Technology Research Institute, and was jointly collected by the Shanghai Silk Research Institute. The main drafters of this standard are Qi Fangmin, Xu Jieshou, Lu Wenbao, Li Ming and Hu Jiaomin. This standard was first issued in 1983. This standard was entrusted to the Standardization Research Institute of the China Pharmaceutical Industry Association for interpretation. GB/T3921.4—1997 ISO Foreword ISO (International Organization for Standardization) is an international alliance of international standards organizations (150 members). The preparation of international standards is completed through ISO technical committees. Members who are interested in projects established by technical committees have the right to participate in the committee. Medical and non-governmental international organizations can contact the project and participate in the work. [S In all matters of electrotechnical standardization, the International Electrotechnical Commission E is the closest. The draft international standard adopted by the technical committee is circulated to the members for voting. The above-mentioned results are published as international standards. International Standard TSO1C5-C04 was prepared by ISO)/TC38 Textiles Technical Committee. This fourth edition has been technically revised and cancels and replaces the third edition (I90105-C04: 1987). 3.105 has 13 "parts", each part has a booklet (for example: "Part A"), published between 1978 and 1985, and the booklet consists of a series of "articles", each with a letter and a two-digit number (such as "Part A01", these "articles" are now published as separate volumes, all indicating "parts" but still retaining the original letters and characters, ISU105-A01 has been published in full. 1 Scope
National Standard of the People's Republic of China
Textiles
Colour fastness test
Colour fastness to washing: test
Textiles--Tesis for alour tastness -Colour fasiness to washing,Test 4GB/ 3921.4—1997
eqr150105-c04.1989
Generation #GD3921--a3
This standard specifies the first test in a series of five wash fastness tests and has been established as a preliminary color fastness test method for studying colored textile products. This series of tests includes a range of washing operations from mild to severe. This method is designed to determine the effect of washing and ironing on the color fastness of the product and does not reflect the comprehensive effects of ironing operations. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards have been revised. All parties using this standard should consult Please use the latest version of the following standards. GB250-1995 Grey sample card for color change assessment (dtISD105-A02:193) GB25-1995 Grey sample card for color change assessment (IDTS0105-43.1993) GB/16151-1997 General rules for color fastness test of fabrics (eg[50105-A01:1594) CB7564~7558-87 Standard for color fastness test of textiles (negS(105-F,1985) GB11404-89 Specification for color fastness test of solid fiber fabrics (nIS0105-F10.1989) 3 Reasons for testing the color fastness of textiles Combined with one or two pieces of specified adjacent fabrics, placed in a coolant, under specified time and temperature conditions, mechanically stirred, then rinsed and treated with a color sample card to evaluate the color change of the sample and the staining of the adjacent fabric. 4 Equipment and Reagents
4.1 Suitable mechanical device (according to Appendix A). It consists of a water bottle equipped with a rotating shaft. The rotating shaft is radial and supports a glass or stainless steel container with a capacity of 550ml. ± 50ml. The diameter is 75mm ± 5mm, the height is 125mm ± 10mm, the distance from the center of the shaft to the bottom of the container is 45mm ± 10mm, the rotation speed of the shaft and the container is 40r/min ± 2/min, the water bath is used for temperature control, and the test solution is maintained at 95℃ ± 2℃ The specified temperature. 4.2 The stainless steel of the chest is about 6mm in diameter, 43 soap, the moisture content does not exceed 5% and must meet the following requirements (based on dry mass): free cations (based on Na;CO)
free iodine (based on NOH) wwW.bzxz.Net
total fat
preparation of soap mixed fatty acid freezing point
1) replace Japanese 392183 application method 4.
this thermal technology supervision week 1997-06.09 approved
0.3 road from the maximum)
0.1% (maximum)
850g/kg (minimum)
30 (maximum)
1997-12-01 implementation
fertilizer topdressing should not contain light enhancer.
GB/T3921.4—1997
50 (maximum)
4.4 Soap, 5g fertilizer (4.31 and 2 yuan sodium bicarbonate per liter of water (4.7). 4.5 Paste (according to GB/[6151—197,8.4), according to 4.5.1 or 4.5.2. Choose one of them - 4.5.1 A multi-fiber pasted paper material that does not contain core and cool fiber that conforms to the core of B11404, 4.5.2 Two pieces of single shrimp pasted fabrics that conform to the relevant inspection section of <3B7554-7668, the first piece is made of the same fiber as the sample, and the second piece is made of the same fiber as the sample, and the fiber is determined If the sample is a mixed product, the first piece should be made of the main content of warp fiber, and the second piece should be made of the main content of fiber. See the regulations. Table 1 Some fiber lining fabrics
Part of the piece is,
Required
Military medical part
4.5.3 If the end is required, use a large piece of colored paper (such as acrylic), called the second piece,
Delete the fiber
I stick
or fine
4.5 The gray sample F. is used to evaluate the color change, and the gray card is used to evaluate the staining, which is in accordance with GB251.4. 7.3 (Continued from GH/5--17, 8.1).
5 Test specimens
5.1 For fabrics with multiple layers, prepare the test specimens as follows: 1) Take a 40mm×10umrm test specimen, and place the front side in contact with a 4Gmm×100mm multi-fiber patch (4.5.1), and sew one short side together (or as specified otherwise). Place a combined long sample. h) Measure a 40mm×100mm push-piece, sandwich it between two 40mm×100mm single-woven patch materials (4.5.2), and close them (or as specified otherwise), and form a combined test. 5.2 If the sample is a yarn or needle end, take a yarn or loose fiber equal to about half of the total mass of the lining fabric, and prepare the sample in the following way: a) sandwiched between a 40mm×100mm multi-fiber standard fabric and a 45mm×100mm non-colored material (4.5.3), and sew along the four sides (according to GB/61=1-1997, 9.3.3.4) to form a combined sample; b) from two 4)mm×100mm single-fiber winding fabrics, sew the edges together to form a combined sample, 6 Operation procedure
6.1. Place the combined sample and 10 stainless steel balls (4.2>) in a container, inject the soap solution (4.5) preheated to 2°C to float the combined test sample at 95°C±2 (treatment Gmin, 6.3. Take out the combined sample. Wash it three times with cold secondary water (4.7), rinse it in running cold water for 10min. Squeeze out the moisture: unfold the combined gold sample. The quick test group and the village are connected only by the seam (if necessary, disconnect all the seams), which means drying in air not exceeding 6.4. Use a gray card (4. 6) Evaluate the staining degree of the sample. Test report The test report includes the following parts: a) The number of this standard, B1 GB/T3921.4 6) Specific specifications of the sample 1) Sample color change embellishment d) Women's single-warp backing fabrics, the staining degree of each type of backing fabric used; e) Women's multi-fiber backing paper, its type and the staining degree of the converted fiber. CB/1 3921.41997
Appendix
(Indicative Appendix)
Test Equipment
A1 The test equipment used in this standard is SW-12, 8W-8, SW-4 pre-washing color fastness tester, for details, see the National Scientific and Technological Research Achievement Registration No. 800740.
A2 Other equipment that can produce the same results as specified in 4.1 may also be used. Appendix B (Appendix for reference) Compounds or detergents If necessary, 4 g/L synthetic detergent and 1 g/L anhydrous sodium carbonate can be used instead of 5 g/L and 2 g/L anhydrous sodium hyaluronic acid. The synthetic detergent is taken as follows: 1.5 g/L sodium acrylate crosslinked with 1 g/L anhydrous sodium carbonate. The average carbon chain length is 2.5...) Alcohol-ethyl alcohol (ethylene oxide number 14) soap (length CC, 1.13%~25.Cu~Cz74~%) Alkyd (Si02/Na02-3.3/1) Magnesium silicate (Medium base fiber) Ethylene diamine (ethylenediamine) Sodium sulfate (% (/m) ±2%)
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