冷れい染せん染せん料りょうMeanings1nounice dye; ice color; insoluble azo dye cooled with ice during dyeingTechnical term in dye chemistry. Refers to a class of insoluble azo dyes that are applied with ice cooling. The cross-reference 氷染染料 is a synonym.See also: 氷染染料冷れい染せん染せん料りょうは、氷こおりで冷ひやしながら染せん色しょくする不ふ溶よう性せいアゾ染せん料りょうの一いっ種しゅです。