Gradual, irreversible loss of color intensity, usually due to exposure to light (actinic radiation, especially direct sunlight); or from contact between dyes and various soils or oxidizing gases (ozone); or fumes from certain liquids (oxides of nitrogen, sodium hypochlorite), etc. Fading may occur locally or throughout a fabric, depending on exposure to outside agents and airflow. Windows and the general orientation of the structure to outside agents and airflow. Windows and the general orientation of the structure may be a contributing factor, since the greatest potential for sun fading is from a Southwest exposure with the least being from a North or NorthWest exposure. Loss of color usually caused by exposure to sunlight or atmospheric gases. Loss of color. Caused by actinic radiation such as sunlight or artificial light, atmospheric gases including ozone, nitric oxide, and hydrogen sulfide, cleaning, and bleaching chemicals such as sodium hypochlorite, and other household and industrial products, chlorine chemicals or swimming polls, and other factors. Commercial carpet installations in areas where such exposures occur require extreme care in selection of colorfast carpet.

This definition is in context to Carpet. See more contextual defintions for Fading.