Why were coloured Arita export wares called Imari ware?

Coloured Arita export wares were called Imari ware because they were shipped to other parts of the world from the port of Imari during the Edo period.123

Although the porcelain was manufactured at the Arita kilns in Hizen province, the city of Imari served as the primary trade and shipping center for these goods, which were exported internationally by the Dutch East India Company. Consequently, the name of the port became synonymous with the porcelain exported through it.123