Contact person
Ingegerd Hartmann
Forsknings- och utvecklingsingenjör
Contact IngegerdIt is important that dyed textiles maintain their intended colour and do not bleed onto other fabrics and materials through staining. When a piece of fabric come in contact with water it can cause unwanted staining.
One of the most common sources of consumer complaints is when dyed textiles change and vary too much from the purchased product and become unacceptable to the user. A piece of fabric can have good colour fastness in one state but worse in another. It can therefore be important to test a textile’s colour fastness when exposed to water.
Poor colour fastness can be due to pretreatment, choice of dye, dyeing process, aftertreatment, and use.
The fabric is moistened with room temperature water and placed under pressure at 37°C for 4 hours together with staining-fabric of the chosen fiber type. Colour change and staining are assessed in a light box under standardized light against a gray scale.
A report in Swedish or English is provided with obtained results.