Does Thiourea Dioxide Work Particularly Well for Polyester Reduction Clearing?

Yes, polyester/disperse-dye reduction clearing is one of the most relevant applications to evaluate.

Conventional polyester reduction clearing commonly uses sodium hydrosulfite, sodium hydroxide and nonionic/dispersing auxiliaries.

A published study describes conventional polyester reduction clearing using sodium hydrosulfite and alkaline conditions. Commercial textile chemical suppliers also publish polyester reduction-clearing processes using hydrosulfite around 1–2 g/L with alkaline conditions.

Suggested customer trial: Thiourea Dioxide + NaOH + reduction-clearing detergent, 70–80°C × 15–20 min.

Then compare whiteness, ΔE, K/S, washing fastness, staining, fabric hand and fabric strength.