SDC Fading Grey Scale:

Criterios aplicables

The SDC Grey Scale adheres to international colorfastness testing protocols, including:

• ISO 105-A02 (Grey Scale for Assessing Change in Color)
• AATCC Evaluation Procedure 1 (Grey Scale for Stain and Color Change)
• BS EN ISO 105-A02 (British/European equivalent)
• JIS L 0801 (Japanese Industrial Standard for Grey Scale Assessment)

These standards ensure uniformity in color change evaluation, facilitating global trade and compliance.

Parámetros principales

Principio de funcionamiento

The Grey Scale operates as a visual reference tool:

1. Color Comparison: Users place the test specimen alongside the Grey Scale chips under standardized lighting (e.g., D65 illuminant).
2. Rating Assignment: The degree of color change is matched to the closest Grey Scale pair, with 1 = severe fading and 5 = no visible change.
3. Objective Grading: Half-step increments (e.g., 4-5) allow nuanced evaluation for borderline cases.

Test Principle & Applications

The Grey Scale is used in controlled testing environments to:

• Lightfastness Testing: Assess dye durability after xenon arc or weatherometer exposure (e.g., ISO 105-B02).
• Wash Fastness: Evaluate color bleeding or staining after laundering (AATCC 61, ISO 105-C06).
• Perspiration/Rub Fastness: Measure color retention under simulated wear (ISO 105-E04, AATCC 8).

Key Applications:

• Textile Manufacturing: Quality control for dyes and finishes.
• Retail: Verifying color consistency in garment production.
• Research: Developing fade-resistant pigments for automotive/aerospace textiles.

The SDC Fading Grey Scale is an indispensable tool for industries requiring precise colorfastness evaluation, offering a standardized, cost-effective solution to ensure product performance and customer satisfaction.