Which type of fabric test specifically measures its performance against fading due to washing and light exposure?

The measurement of a fabric's performance related to fading due to washing and light exposure is known as color fastness. This testing evaluates how well a fabric maintains its original color when subjected to various conditions, including laundering and exposure to sunlight. High color fastness means that the fabric will resist fading and retain its hue over time, a crucial quality for textiles used in interiors, where both exposure to cleaning and light can significantly affect their appearance and longevity.

Understanding color fastness is particularly important in the context of textiles for interior design, as it ensures that colors remain vibrant and true over the life of the product, enhancing the aesthetic and functional qualities of the space.