What are the colorfastness standards for high-quality acrylic outdoor sofa fabric?

When selecting high-quality acrylic outdoor sofa fabric, understanding colorfastness standards is crucial for ensuring long-lasting vibrancy and durability. Colorfastness refers to a fabric's resistance to fading or bleeding when exposed to sunlight, moisture, or cleaning.

For premium acrylic outdoor fabrics, key colorfastness standards include:

1. Lightfastness (ISO 105-B02/AATCC 16): Measures resistance to UV rays, with ratings from 1 (poor) to 8 (excellent). High-quality fabrics typically score 6+.

2. Washfastness (ISO 105-C06/AATCC 61): Evaluates color retention after washing, graded 1-5 (5 being best). Outdoor fabrics should achieve 4-5.

3. Rubfastness (ISO 105-X12/AATCC 8): Tests color transfer during friction, with grades 1-5. Ideal fabrics score 4+ for dry/wet rubbing.

These standards ensure your outdoor furniture maintains its aesthetic appeal despite weather exposure. Always verify test certifications when purchasing acrylic fabrics for longevity.