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A specimen of the textile to be tested, with the adjacent fabric attached is subjected to washing under specified conditions. To extent of any change in color and that of the staining of the adjacent fabric are assessed and the rating is expressed in fastness numbers.
- REQUIRED MATERIALS:
Following materials required for color fastness to wash test-
- Sample size (40x100 mm)
- Multi fiber (ISO F10 , AATCC APPROVED)
- ECE Detergent (WOB) 4 g/l
- Sodium Perborate 1 g/l
- AATCC 1993 Standard Reference Detergent (WOB) 1 g/l
- Grade 3 water
- Normal cold water
- Steel balls
- 100% cotton sewing thread.
- REQUIRED INSTRUMENTS:
- Rota wash / Gyro wash
- Scissor
- Sewing machine
- PROCEDURE:
- Cut sample and multi fiber according to ISO 105-C06 or AATCC method.
- Make solution according to buyer or selected standards.
- Prepare beaker and the sample is kept 40⁰C/49⁰C/50⁰C/60⁰C for 30/49 mins in Rota wash/Gyro wash.
- Rinse the sample with cold distilled water then cold normal water.
- Dry the sample at temperature not exceeding 60⁰C.
- After drying the sample assess the shade change and staining.
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