What is EN ISO 105-K04:1997?

EN ISO 105-K04:1997 is an internationally recognized standard in the textile industry that provides guidelines for testing the colorfastness of textiles to wet scrubbing. This standard specifically focuses on the resistance of colors on textiles in contact with water and other cleaning agents.

The Importance of Colorfastness Testing

Colorfastness testing is crucial in the textile industry as it determines the durability and quality of colors on fabrics, ensuring that they do not fade or bleed during use or after washing. This testing allows manufacturers to create visually appealing and long-lasting textiles that meet customer expectations.

The Methodology of EN ISO 105-K04:1997

The testing method outlined in EN ISO 105-K04:1997 involves subjecting fabric samples to wet scrubbing using a specified procedure. The samples are mounted onto a scrubbing device and rubbed against a white cotton cloth soaked in a standardized solution containing detergent and water. After a specific number of strokes, the samples are evaluated for any changes in color, either on the fabric or the white cloth.

Interpreting Results

The results of EN ISO 105-K04:1997 are interpreted by comparing the tested samples against a set of Gray Scale for Assessing Change in Color. This scale allows testers to rate the color change, from no change (grade 5) to extreme change (grade 1). The higher the grade, the better the colorfastness of the tested fabric.

In conclusion, EN ISO 105-K04:1997 plays a vital role in ensuring that textiles maintain their color integrity even when exposed to wet environments and rigorous washing processes. By adhering to this standard, manufacturers can produce high-quality products that offer long-lasting and vibrant colors, instilling confidence in customers and meeting industry requirements.