Friday, November 27, 2009

Colour fastness to acid-felting: Severe

This part of ISO 105 specifies a method for determining the resistance of the colour of textiles in all forms to the action of acids, as used under severe conditions in the acid-felting process.
A specimen of the textile (textiles in all kinds and in all forms) in contact with adjacent fabrics is milled in solutions of acetic and/or sulfuric acid, rinsed and dried. The change in colour of the specimen and the staining of the adjacent fabrics are assessed with the grey scales.
For more details click here:- Colorfastness to Acid felting

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