décoloration à l'ozone

OBS: [Ozone fading] occurs primarily where humidity is high for most of the year ... Ozone prefers and attacks blue dyes first. Since most carpet has very little blue, the yellow and red components are usually left unaffected. But the loss of blue causes the carpet to turn a dull orange, not yellow. This of course depends on the original carpet color too. On a purple carpet which had no yellow in the original color, the carpet would actually turn to a rose or red type color. In these cases, this is not a gain of color but rather than a loss of color.