The AATCC 1993 WOB Standard Reference Detergent is a specific type of Standard Reference Detergent recommended by the American Association of Textile Chemists and Colorists (AATCC) for use in textile testing. “WOB” stands for “Without Optical Brighteners”, meaning that this detergent is formulated without optical brightening agents, which are commonly used in some laundry detergents to make fabrics appear whiter or brighter.

Key Features of AATCC 1993 WOB Standard Reference Detergent:

• Optical Brightener-Free (WOB): It does not contain optical brighteners, which could affect the color and appearance of fabrics during testing, ensuring accurate and unbiased results in colorfastness tests and other textile performance assessments.
• Used for Standardized Testing: It is used in standardized tests for colorfastness, shrinkage, appearance retention, and other fabric properties, ensuring consistency and repeatability across different laboratories.
• Non-Phosphate Formula: It is formulated without phosphates, in compliance with modern environmental regulations.
• Neutral pH: It is formulated with a neutral pH, making it suitable for testing delicate fabrics.
• Widely Used in Laboratory Settings: The detergent is used in various AATCC test methods, including AATCC Test Methods 61 (Colorfastness to Washing), Test Method 86 (Dimensional Change in Automatic Home Laundering), and other appearance and durability tests.

This detergent is critical for ensuring that the results of textile testing are not influenced by additives like optical brighteners, thus maintaining the integrity of the tests and providing more accurate performance data.