11.04.2011 § 2 Comments
Many people think that natural dye would be environmentally friendly and that “green” products should use natural dye. Let’s consider some facts about natural dyes.
Natural dyes have poor color power, meaning that a large amount of dye is needed to produce deep shades. Natural dyes have poor color fastness to laundering and sunlight too. Even indigo dye — which has a pretty good output — is not powerful enough to supply today’s demand. « Read the rest of this entry »