Saturday, November 28, 2009

Colour fastness to weathering : Xenon arc

This part of ISO 105 specifies a method intended for determining the resistance of the colour of textiles of all kinds except loose fibres to the action of weather as determined by exposure in a cabinet equipped with a xenon arc lamp.
Specimens of the textile are exposed under specified conditions to light from a xenon arc lamp and to water spray. At the same time, eight dyed wool references are exposed to light but are protected from water spray by a sheet of window-glass. The fastness is assessed by comparing the change in colour of the specimen with that of the reference.
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