How did World War I affect dye industries in Britain and the United States?

Prior to World War I, the global synthetic dye industry was dominated by Germany, which produced 90 percent of the world's supply. When the war began, both Britain and the United States were ill-prepared to source these products domestically, as they had previously relied on German imports.1

The conflict necessitated rapid industrial shifts in both nations:

• Britain: The government intervened to rejuvenate the domestic dye industry. This effort included consolidating several companies into a single entity, which eventually became part of Imperial Chemical Industries (ICI), a structure modeled after German combines like Bayer and BASF.1
• United States: A robust coal tar chemical industry was developed quickly to meet demand. Unlike the European model of large combines, the U.S. chemical industry evolved through independent, research-oriented firms.1

Following the war, the global leadership in organic chemistry shifted away from Germany toward Switzerland, Britain, and the United States.1