However, this theory is also discredited because the Chaya family's main business was not a kimono merchant (dry goods store), and chaya-zome was not started when the family prospered.
しかし、茶屋家の本業は呉服屋ではなく、茶屋染の発祥も茶屋家の繁栄した時期とはズレがあるため、この説には疑問もある。