What is the primary function of the AATCC Test Method 61?

The primary function of the AATCC Test Method 61 is to assess colorfastness, specifically the ability of a fabric to retain its color when exposed to various conditions, such as laundering, exposure to light, and other environmental factors. This method is critical in determining how well a textile will maintain its appearance and color over time, which is essential for both aesthetic and functional applications in the textile industry.

This test involves exposing the fabric to a series of conditions and then evaluating any color change, allowing manufacturers and consumers to understand how a fabric will perform in real-world usage scenarios. The results guide decisions about the suitability of materials for specific applications where color retention is important, such as in fashion, upholstery, and outdoor textiles.