Bleaching Explained: How It Works in Performance Sportswear
Bleaching is best understood as removing natural colour before dyeing. This entry explains how it behaves inside a finished garment rather than only in the laboratory.
What the term means
removing natural colour before dyeing, which is why the value appears on almost every technical data sheet. Working figures for Bleaching normally sit around hydrogen peroxide route in mainstream production. Note controlled pH and temperature on the tech pack so nobody tests against an older revision.
Why it matters in practice
it prepares fabric for light shades, so it influences buying decisions more than most buyers expect. Record elastane content alongside Bleaching, because blends shift the measured value. A result outside hydrogen peroxide route usually points to process drift rather than to the fibre itself.
Typical values seen in activewear
hydrogen peroxide route. Ranges vary by construction, so compare like with like. Keeping reference values for Bleaching lets suppliers quote without extra sampling rounds. Ask for conditioning details together with controlled pH and temperature, since both affect the reading.
How it is measured
controlled pH and temperature is the reference normally quoted on a test report. Working figures for Bleaching normally sit around hydrogen peroxide route in mainstream production. Note controlled pH and temperature on the tech pack so nobody tests against an older revision.
Frequent mistakes
Comparing results from different standards, testing unwashed fabric, and writing the target without tolerance are the common errors. Record elastane content alongside Bleaching, because blends shift the measured value. A result outside hydrogen peroxide route usually points to process drift rather than to the fibre itself.
