Different Color Fastness To Washing Standards

There are many color fastness to washing standards.  are in accordance with different test methods. We just name three examples as follows. Chinese Standard (GB/T 3921.3-1997):Take a 4cmx10cm specimen, the front is contacted with a 4~10cm adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container with a capacity (550±50) ml [diameter (75±5) ml, high (125±10) ML], injected required amount of soap liquid preheated to (60 ±2) ℃, bath ratio of 50:1. The combination specimen is treated with 30min under the condition of (60±2) ℃, then the combination specimen is removed and washed 2 times with the cold three water, then the 10min is rinsed in the flowing cold water. Squeeze the moisture and expand the composite specimen so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 60 ℃. Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of the sample and the staining of the adjacent fabric. Standards of the American Association of Textile Chemists and Colorants (AATCC 61a-2003, color fastness to washing aatcc)AATCC test method 61-2013 is another standard which is based on the modification of the formulation. A 50mmx100mm specimen is taken, the front is contacted with a 5mmx100mm adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container with a capacity (550±50) ml [diameter (75±5) ml, high (125±10) ml], with injection of required amount of soap liquid preheated to (40±2) ℃, so that the bath 200mL. The composite specimen is processed under (40±2) ℃ for 45min and then removed combined sample, rinsing 3 times with (40±3) ℃ distilled water for 1min, then squeezing away moisture. The combination specimen is expanded so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 71 ℃.Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of the sample and the staining of the adjacent fabric. Japanese industrial standard (JIS l0844-2005):A 4cmx10cm specimen is taken, the front is contacted with a 4cmx5cm nylon adjacent fabric, stitched along a short edge to form a composite specimen and placed in a stainless steel container capacity (550±50) ml [diameter (75±5) ml, high (125±10) ML], injected required amount of soap liquid preheated to (50 ±2) ℃, bath ratio of 50:1. The combination specimen is treated with 30min under the condition of (50±2) ℃, then the combination specimen is removed and washed 2 times with the cold three water, then is rinsed in the flowing cold water for the 10min. Squeeze the moisture and expand the composite specimen so that the specimen and the adjacent fabric are only connected by a single seam and are suspended in the air not exceeding 60 ℃. Take out the dry combination specimen and use the Grey sample card to evaluate the discoloration of the sample and the staining of the adjacent fabric.