色いろ流ながれMeanings1noundye bleeding; color runningTechnical term in fabric dyeing; refers to dye spreading or bleeding into unintended areas.染せん色しょく工こう程ていで色いろ流ながれが発はっ生せいすると、製せい品ひんの品ひん質しつが落おちる。If dye bleeding occurs during the dyeing process, product quality drops.