In textiles, color fastness is a key factor for international acceptance. A fabric with strong and stable color maintains brand reputation and product value. ISO 105 was created to verify and certify color durability. It has become the foundation for companies expanding into global markets.
OVERVIEW OF ISO 105 AND COLOR FASTNESS
General concept
This is a global standard system used to evaluate textile color fastness. It simulates conditions a fabric faces during use, including light, washing, perspiration, friction, and heat from ironing.
Color fastness reflects the stability of fabric shades. When colors fade easily, products lose aesthetics and fail quality standards. For exports, ISO 105 testing is mandatory. Passing results strengthen customer trust and reduce risks for manufacturers.
Popular test methods
It consists of many parts, each defining a specific method. ISO 105-A01 to A05 provide general terms and conditions. ISO 105-B02 measures color fastness to artificial light, crucial for European and U.S. markets.
ISO 105-C06 and C10 cover washing tests, both machine and hand wash, for apparel and home textiles. ISO 105-E04 simulates the impact of acidic and alkaline perspiration, often required for sportswear. ISO 105-X12 determines resistance to dry and wet rubbing. ISO 105-P01 evaluates fastness under hot ironing
HOW TO DESIGN ISO 105 TEST SETS FOR EXPORT PRODUCTS
Selecting samples
Sample selection is the first step to ensure objective results. Typical sizes are 10×4 cm or 10×10 cm. Each test requires two to three pieces, including the main and control samples. Dark shades or easily fading colors should be chosen to highlight reliability. Proper preparation reduces errors and reflects the true properties of fabrics. It also helps companies manage risks in production and exports.
Joining with multi-fiber fabric
For many tests, samples are attached to ISO 105-F10 multi-fiber fabric. This fabric combines common fibers such as cotton, polyester, nylon, acrylic, and wool. It is used to evaluate staining onto adjacent fibers. Samples must be fixed firmly to prevent shifting during testing. Poor attachment can distort results and reduce report reliability. A secure bond ensures the sample undergoes proper stress in the test.
Equipment and conditions
Each method requires specialized instruments. Washing tests use mini washers, rubbing tests use Crockmeters, light tests require Xenon chambers, and heat tests involve calibrated irons. Conditions of temperature, humidity, chemicals, and time are strictly defined in each part. Compliance ensures results are internationally accepted. Using incorrect conditions may invalidate tests for global recognition. Regular equipment calibration is mandatory to maintain accuracy.
Result evaluation
Results are assessed using the Grey Scale with five levels. Grade 1 indicates poor fastness, while grade 5 shows excellent performance. Both color change and staining on multi-fiber fabric must be checked. For exports, the common requirement is grade 4 or above. Evaluations should be conducted by trained technicians. Human eyes detect subtle differences that machines still cannot fully replace.
SUGGESTED STANDARD TEST SET FOR EXPORTS
A standard test set usually combines several methods. ISO 105-B02 is conducted in a Xenon chamber with 10×4 cm samples. Results should reach grade 4 or higher. ISO 105-C06 uses a washing machine with 10×10 cm samples. Both color change and staining must achieve grade 4.
ISO 105-E04 applies acid and alkaline solutions to 10×4 cm samples. Staining must be grade 4 or higher. ISO 105-X12 uses a Crockmeter on 10×4 cm samples. Dry rubbing should be grade 4, while wet rubbing can be grade 3 to 4 depending on the market.
ISO 105 REQUIREMENTS BY EXPORT MARKETS
Europe
European buyers often demand multiple tests at once. B02, C06, E04, and X12 all need to reach grade 4 or higher. This market values uniform quality and long-lasting use. Large brands usually enforce strict washing and rubbing fastness checks.
United States
The U.S. enforces stricter rules on light fastness. ISO 105-B02 must achieve grades 4 to 5. Washing tests under C06 must also be at least grade 4. These requirements reflect a focus on durability and consumer safety.
Japan
Japan focuses on C10, E04, and X12. Consumers value cleanliness and physical activity performance. Sportswear and children’s clothing must pass perspiration tests to ensure safety. Japanese standards also provide detailed guidance for specific product categories.
Middle East
Hot climate and alkaline sweat make E04 testing crucial in the Middle East. Results must reach grade 4 or above in alkaline solutions. This is a regional requirement companies cannot ignore. Local brands also often test additional heat resistance.
VICHEM – AUTHORIZED DISTRIBUTOR OF CERTIFIED PLASTIC ADDITIVES IN VIETNAM
Vichem is an authorized distributor of plastic additives with full legal compliance in Vietnam. We not only provide high-quality products but also deliver after-sales services that meet international standards. Our services include:
- Technical consulting: Supporting customers in choosing the right product samples for their applications.
- Color matching tests: Our experts conduct color matching evaluations to ensure results meet design requirements.
- Practical application support: Working closely with customers to integrate solutions into production lines for optimal efficiency.
For more product details, please contact us through the following channels:
📞 Hotline: 08 1790 1790
📧 Email: contact@vichem.vn
🔎 LinkedIn: Vichem JSC
🌐 Website: www.vichem.vn
📌 Facebook: Vichem JSC
