Colourfastness
- Created by: Emmy sale
- Created on: 07-05-15 21:11
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- Colourfastness and other fastness
- Bleaching
- Some dyes such as those used on swimwear need to be able to resist the effects of chlorine.
- What is colourfastness?
- Is the strength with which the dye is held in the fibre. When selecting dyes for a particular end use,colourfastness must be considered.
- Fabrics may need to have fastness to these factors depending on their intended use.
- Washing
- This will be important for clothing and household products used regularly.
- Perspiration
- This will be important for fashion products as the acid/alkaline effects of perspiration can react with some dyes leading to localised discolouration
- Light
- This will be important for furnishing products, expecially curtains and chair/sofa covers as they are exposed to sunlight
- Dry Cleaning
- the fluids can lead to a loss of colour so products which are likely to be dry-cleaned on a regular basis need to be fast to the dry-cleaning materials.
- Rubbing (crocking)
- Dye is removed from products by friction. This property will be important for seating and some clothing products
- Bleaching
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