KURO-HACHIJO (silk textile dyed with mud)

Hiroshi Mori

The owner of the ITOKOBO (Small Silk Mill)

Mr. Mori, the 3rd generation of the owner at the factory, was born and raised in Akiruno-shi (former Itsukaichi-machi), Tokyo.

Kurohachijo is a type of woven silk products that used to be popular in Itsukaichi area from the late Edo Period through Meiji Period so that Kurohachijo is also called as “ITSUKAICHI”.

The materials need to be dyed with iron-rich mud and seeds of YASHABUSHI (species of alder tree) before weaving.

It varies in colour from light to dark brown that is almost black. The colour depends on how many times silk is dyed with mud.


This products were well known across japan in old days, but the populality has decreased over time because of its time-consuming process and productivity.

He is now only one person who has the dying technique and titled as one of 5 artisans in the area.

You got interested in his work? Please contact us for more information about visiting his factory, taking look at his work and taking part in in his workshop.