However, prompted by the Shimonoseki War in 1864, powerful countries heavily pressed the Edo bakufu for the abolition of the law while there were opinions within the Edo bakufu that it would lead to improved financial affairs of the bakufu and be wiser to keep trading under control by imposing tax on exports of raw silk thread.
しかし、1864年（元治元年）の下関戦争を契機として、列強各国は幕府へ同法令の撤回を強く迫り、一方幕府内部からも生糸の輸出に税金をかける形で抑制した方が幕府財政の改善にも繋がるとする意見も出された。