Greige Preparation Parameters for Heavy Woven Cotton Twill
Preparation of heavy cotton twill requires 85-degree flame singeing, dual-dip enzymatic desizing, open-width alkaline scouring, and 28 Baumé mercerization.
ISO 10595
Testing Protocol
Standardized laboratory procedures evaluate how fabrics maintain their color under various environmental stressors. ISO 10595 is an international standard that specifies a method for determining the resistance of the color of textiles to action of a simulated environment or mechanical force. It provides a repeatable framework to measure color transfer or fading during processing or use.
Brands use this standard to qualify fabrics before mass producing garments.
Colorfastness Evaluation
In apparel manufacturing, dry and wet friction can cause dyes to bleed onto adjacent lighter fabrics or skin. The test uses a rubbing finger covered with a dry or wet cotton cloth that is moved back and forth across the specimen. The degree of staining on the cotton cloth is then evaluated against a gray scale, where a higher rating indicates better fastness.
Fabric that falls below a rating of three or four is rejected to avoid consumer complaints about dye transfer during wear.
Apparatus Requirement
The testing machine must exert a constant downward force of nine Newtons on the rubbing finger to ensure consistency. It must also move at a uniform speed to prevent frictional heating from affecting the dye transfer.
Operational Control
By using calibrated equipment and conditioned test specimens, laboratories across the world achieve comparable results. This uniformity is essential for international supply chains where garments are manufactured in one region and sold in another.