Money & Business
Colour fastness
...Institute BSI through the Society of Dyers and Colourists (SDC). To test the dyed and finished t-shirt for its wash fastness a sample of the fabric is taken and sewn together with a piece of fabric called a multifibre strip. This fabric is specially engineered and specified in the standard to always be the same. It contains the following fibres Wool, Acrylic, Polyester,...