Japan · Textile / Weaving / Silk Pongee and Ikat

Kumejima Tsumugi Mud-Dyed Silk Pongee

久米島紬 (Kumejima Tsumugi)

Kumejima tsumugi (久米島紬) is a hand-woven silk pongee from Kumejima, west of Okinawa Island, and is often called the root of Japanese tsumugi. Its signature is a glossy black ground carrying brown and yellow ikat. The black comes from mud: yarn is first dyed dozens of times, reportedly around 80, with the tannin-rich plant dyes guru (Smilax china) and tekachi (Rhaphiolepis indica). It is then steeped in gray mountain mud, where iron reacts with the tannins, and the cycle of mud and tekachi alternates until the brown turns black. The mud-dyeing season runs about a month from late October, and neighbors work together under the Okinawan ethic of yuimāru. All dyes are island plants, and part of the silk is raised on the island. Weaving techniques are said to have arrived with southern trade around the 14th century and sericulture from China. The cloth was paid as poll tax from the early Edo period into the Meiji era, woven to royal pattern books (mīzu-chō). Finishing by kinuta mallet gives it its supple sheen.

Risk level: Vulnerable · Not inscribed. National Important Intangible Cultural Property 'Kumejima Tsumugi' (group holder: Kumejima Tsumugi Preservation Society, 2004). Okinawa Prefecture intangible cultural property 1977. METI Traditional Craft Product (17 February 1975)

Alternate Names
Kumejima pongee; Kumejima-tsumugi; dorozome (mud dyeing); guru (Smilax china); tekachi (Rhaphiolepis); yuimāru; mīzu-chō pattern books
Geographic Center
Kumejima Town, Shimajiri District, Okinawa Prefecture
Community / Ethnic Group
Okinawan (Ryukyuan); Kumejima weaving households
Estimated Origin
Weaving techniques via southern trade c. 14th century; sericulture learned from China; poll-tax cloth from the early Edo period to the late Meiji era
Cultural Function
Poll-tax cloth; kimono passed down across generations (the subdued ground suits two or three generations with a change of obi)
Primary Materials
Raw silk (warp) and hand-spun silk floss (mawata) (weft); partly island-raised
Primary Tools
Takabata loom with hand-thrown shuttle and two treadles; kasuri ruler; weft 'seed-thread' (tane-ito) pattern stand
Process Overview
Reeling warp / drawing floss weft -> design -> warp kasuri binding -> weft tane-ito marking and binding -> plant dyeing (guru, tekachi) -> mud dyeing alternating with tekachi -> temporary reed and beaming -> unbinding and kasuri alignment -> weaving -> kinuta finishing -> steaming and pressing
Traditional Applications
Poll-tax cloth; kimono
Contemporary Applications
Kimono, obi, Western clothing, tablecloths, noren, small goods; a summer weight also made
Notable Practitioners
No individual independently verified — the Aoyama Square interviewee's name is rendered inconsistently by machine translation. The national designation is held by a group of 16 certified technicians
Key References
Association for the Promotion of Traditional Craft Industries, Aoyama Square, 'KUMEJIMA Tsumugi (Pongee)' (kougeihin.jp/craft/0126); Okinawa Kōgei no Mori, 'Kumejima Tsumugi Jigyō Kyōdō Kumiai' (chronology); Japanese Wikipedia, '久米島紬'; Kumejima Tsumugi no Sato Yuimāru-kan (kume-tumugi.com)
Verification Status
Verified — process, chronology and designations

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