Color fastness to washing is the common quality parameter, which is considered very important from the point of view of consumers. This test determines the loss & change of colour in the washing process by a consumer and the possible staining of other garments or lighter portion that may be washed with it.
The color fastness testing to washing
First, the purpose and principle:
1, this test method is applicable to the detection of conventional home or commercial washing process for home textiles washable color fastness
2, this test method for washing color fastness test for does not reflect the conventional commercial washing process added by the utility of brighteners.
3, a single wash test (STest) results with a home or commercial wash effect.
Second, the preparation before the experiment:Cut the sample size of 40mm100mm and multi-fiber cloth, and along the sample and a short edge of the multi-fiber cloth and the multi-fiber cloth face to face sewing together.
Third, the equipment and materials in the test:
1, Launderometer or Washwheel or other similar performance of the washing machine (equipped with thermostat, the water temperature maintained at ± 2oC or less, the operating speed of about 42 ± 2r.p.m)
2, stainless steel balls with a diameter of about 0.6mm
3, the capacity of 550 ± 50ml standard stainless steel bottles
4, SDCDW or No. 1 standard multi-fiber cloth
5, distilled water or deionized water
6, ISO / BS standard fade gray and stained gray one of the various.
7, the standard light source
8, electronic pounds
9, WOB or ECE detergent
11, sodium perborate
12, Sodium Carbonate
13, sodium hypochlorite or Clorox solution
14, acetic acid solution (concentration of 1L solution containing 0.2g glacial acetic acid)
15, sulfuric acid solution (concentration of 294g / L)
16, potassium iodate solution (concentration of 120g / L)
17, standard sodium pentaerythrite solution (concentration of 0.1mol / l)
Fourth, the test reagent preparation:
1, A1S / A1M / B1S / B1M items required for the configuration of the lye: 4g detergent dissolved in 1L distilled water or deionized water. Configured to test the required lye.
2, A2S / B2S items required to test the configuration of lye: 30 minutes before the test before the 4g ECE detergent and 1g sodium perborate dissolved in less than 60oC of warm water, configured to test the required lye.
3, C1S / C1M / D1S / D1M / E1S items required to test the configuration of lye: 4g detergent dissolved and about 1g of sodium carbonate dissolved in 1L distilled water or deionized water. The solution was then cooled to 20 ° C and the PH value of the solution was measured to be 10.5 ± 0.1. If not, the pH of the lye was adjusted to 10.5 ± 0.1 with acetic acid and 0.1 N sodium hydroxide solution Test the required lye.
4, C2S / D2S / E2S items required to test the configuration of lye. Wait 30 minutes before the test will be heated in accordance with the configuration of the alkali in step 5.3 (but the water temperature can not exceed 60oC), then 1g of sodium perborate dissolved in the solution, configured to test the required lye.
5, D3S / D3M items need to test the configuration of lye. Prepare 1L of the base solution in accordance with Step 5.3 and add the appropriate sodium hypochlorite solution or Clorox solution so that the Cl content of the lye is 0.015%.
Fifth, the procedures in the trial:
1, D2S / E2S item test: the washing color fastness test machine test temperature adjusted to about 60oC, will be equipped with 50ml of lye stainless steel cylinder into the washing machine, turn on for several minutes, so that the lye temperature reaches about 60oC, and then as required Place the test temperature of the test instrument, the multi-fiber cloth and the stainless steel ball into the stainless steel cylinder, and adjust the test temperature of the washing machine to the temperature required for the test and heat the temperature of the water and lye in the tester within 10 minutes to the test The required temperature. Then set the washing time of the washing machine, start washing.
2, other items test: according to the test requirements to adjust the test temperature of the washing machine, will be equipped with 50ml of lye stainless steel tube into the washing machine, boot a few minutes, so that the temperature of the lye to test requirements, and then Samples, multi-fiber cloth and stainless steel balls into the stainless steel tube, and then set the washing machine wash time, boot washing.
3, after washing, the sample and multi-fiber cloth out, in the 40oC of distilled water or deionized water twice.
4, the sample and multi-fiber cloth in the excess water removed, and then separated them flat, no more than 60oC in the natural dry environment.5, in the standard light source with the standard gray scale on the sample color and multi-fiber cloth stains were rated.
Sixth, after the report:
1, test method
2, the sample of the color change level.
3, multi-fiber cloth on a variety of fiber stains.
-------------------------------------------------------------------
For more information about our testing instrument, please contact
·website:http://www.qinsun-lab.com/
· +86-21-6780 0179
· info@qinsun-lab.com
· or leave your comments below
The color fastness testing to washing
First, the purpose and principle:
1, this test method is applicable to the detection of conventional home or commercial washing process for home textiles washable color fastness
2, this test method for washing color fastness test for does not reflect the conventional commercial washing process added by the utility of brighteners.
3, a single wash test (STest) results with a home or commercial wash effect.
Second, the preparation before the experiment:Cut the sample size of 40mm100mm and multi-fiber cloth, and along the sample and a short edge of the multi-fiber cloth and the multi-fiber cloth face to face sewing together.
Third, the equipment and materials in the test:
1, Launderometer or Washwheel or other similar performance of the washing machine (equipped with thermostat, the water temperature maintained at ± 2oC or less, the operating speed of about 42 ± 2r.p.m)
2, stainless steel balls with a diameter of about 0.6mm
3, the capacity of 550 ± 50ml standard stainless steel bottles
4, SDCDW or No. 1 standard multi-fiber cloth
5, distilled water or deionized water
6, ISO / BS standard fade gray and stained gray one of the various.
7, the standard light source
8, electronic pounds
9, WOB or ECE detergent
11, sodium perborate
12, Sodium Carbonate
13, sodium hypochlorite or Clorox solution
14, acetic acid solution (concentration of 1L solution containing 0.2g glacial acetic acid)
15, sulfuric acid solution (concentration of 294g / L)
16, potassium iodate solution (concentration of 120g / L)
17, standard sodium pentaerythrite solution (concentration of 0.1mol / l)
Fourth, the test reagent preparation:
1, A1S / A1M / B1S / B1M items required for the configuration of the lye: 4g detergent dissolved in 1L distilled water or deionized water. Configured to test the required lye.
2, A2S / B2S items required to test the configuration of lye: 30 minutes before the test before the 4g ECE detergent and 1g sodium perborate dissolved in less than 60oC of warm water, configured to test the required lye.
3, C1S / C1M / D1S / D1M / E1S items required to test the configuration of lye: 4g detergent dissolved and about 1g of sodium carbonate dissolved in 1L distilled water or deionized water. The solution was then cooled to 20 ° C and the PH value of the solution was measured to be 10.5 ± 0.1. If not, the pH of the lye was adjusted to 10.5 ± 0.1 with acetic acid and 0.1 N sodium hydroxide solution Test the required lye.
4, C2S / D2S / E2S items required to test the configuration of lye. Wait 30 minutes before the test will be heated in accordance with the configuration of the alkali in step 5.3 (but the water temperature can not exceed 60oC), then 1g of sodium perborate dissolved in the solution, configured to test the required lye.
5, D3S / D3M items need to test the configuration of lye. Prepare 1L of the base solution in accordance with Step 5.3 and add the appropriate sodium hypochlorite solution or Clorox solution so that the Cl content of the lye is 0.015%.
Fifth, the procedures in the trial:
1, D2S / E2S item test: the washing color fastness test machine test temperature adjusted to about 60oC, will be equipped with 50ml of lye stainless steel cylinder into the washing machine, turn on for several minutes, so that the lye temperature reaches about 60oC, and then as required Place the test temperature of the test instrument, the multi-fiber cloth and the stainless steel ball into the stainless steel cylinder, and adjust the test temperature of the washing machine to the temperature required for the test and heat the temperature of the water and lye in the tester within 10 minutes to the test The required temperature. Then set the washing time of the washing machine, start washing.
2, other items test: according to the test requirements to adjust the test temperature of the washing machine, will be equipped with 50ml of lye stainless steel tube into the washing machine, boot a few minutes, so that the temperature of the lye to test requirements, and then Samples, multi-fiber cloth and stainless steel balls into the stainless steel tube, and then set the washing machine wash time, boot washing.
3, after washing, the sample and multi-fiber cloth out, in the 40oC of distilled water or deionized water twice.
4, the sample and multi-fiber cloth in the excess water removed, and then separated them flat, no more than 60oC in the natural dry environment.5, in the standard light source with the standard gray scale on the sample color and multi-fiber cloth stains were rated.
Sixth, after the report:
1, test method
2, the sample of the color change level.
3, multi-fiber cloth on a variety of fiber stains.
-------------------------------------------------------------------
For more information about our testing instrument, please contact
·website:http://www.qinsun-lab.com/
· +86-21-6780 0179
· info@qinsun-lab.com
· or leave your comments below
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