Intorduction and theory
Colour Fastness to Domestic and Commercial Laundering
(ISO 105-C06:1994(E) Method)
It determining the resistance of the colour of textiles of all kinds and in all forms to domestic or commercial laundering procedures used for normal household articles using a reference detergent. It helps to know possible staining of other garments or lighter portion that may be washed with it. Also, we picked B1M in ISO 105-C06:1994(E) Method for this test.

Material/ Reagents /Apparatus
• Test specimen
• Launderometer

• Standard reference detergents without Optical Brighteners – either ECE or AATCC
• Multifibre Fabric (Wool , Acrylic, Polyester, Nylon, Cotton or Acetate Rayon)

* Wash wheel pots • 50pieces Stainless Steel Balls
• 150 ml Detergent
• Distilled water * Grey Scale for assessing change in colour
• Grey Scale for assessing staining

Testing Procedure
A multi-fibre swatch is sewn to the 10cm x 4cm specimen.
Then, this composite specimen is placed in the wash wheel pot containing detergent about 150ml with 50 pieces of steel balls. The wash wheel will be run in launder meter for 45 minutes. After 45 minutes actions, the specimen in a 100ml portion of acetic acid reagent for 1minute at 30°C. It then rinses each composite specimen in 100ml distilled water for 1 minute at 30°C.

Specimen is then removed three way attached, rinsed and dried in still air at a temperatures not exceeding 60°C with the parts in contact only at the line of stitching. Finally, access this change in colour of the specimen and staining of the adjacent fabric using the grey scale. The light should be incident upon the surface at approximately 45°, and the direction of viewing approximately perpendicular to the plane of the surface. Each of pair of grey Is then placed alongside ion turn and the number of the pair showing contrast nearest to that shown by the sample is noted.

Result and Assessment
We need to observe any extent of staining on the multi-fibre sample, Change in shad, depth and brightness and self staining. This assessment is needed to be in standard lighting conditions and compare with Grey Scale. There are grey Scale for assessing change in colour and also grey Scale for assessing change in colour and staining.
5 4 3 2 1

1) Colour Staining
The sample cannot show easily about the staining in the colourfastness to washing this test. It is grade 4 which is not significant loss in depth has occurred. There has been a change in hue.

2) Colour Change
Colourfastness to washing specimen showing acceptable loss of colour due to faulty finishing of the base fabric. It is grade 4-5 which is not significant loss in depth has occurred. There has been a change in hue only. This criterion does not apply to products clearly labeled “dry clean only” or equivalent (insofar as it is normal practice for such products to be so labeled), to white products or products that are neither dyed nor printed, or to furniture fabrics.

Conclusion and Discussion
Color fastness to washing is the common quality parameter
We understand this test is designed for the detergents and bleach systems given with different conditions and levels of ingredients. The result of this helps to predict the performance of any dyed or printed textile product. It is more easily to understand for normal household articles using a reference detergent and any care label for the garment products which will be in common washing process using a detergent and additives and protect the customer’s right and property.