足あし留どめ薬ぐすり

noun

dye retarding agent; leveling agent

Technical term used in dyeing processes to slow down dye uptake and promote even coloring.

• 染せん色しょく工こう程ていでは、足あし留どめ薬ぐすりを使つかって色いろむらを防ふせぎます。

  In the dyeing process, a leveling agent is used to prevent uneven coloring.