IROS Roots Collective|新たな技術を求めて

IROS Roots Collective | In Pursuit of New Techniques

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The other day, I visited Koshoku-no-Bi to learn more about soil dyeing techniques.



I was taught by Mr. Kobuchi, the founder. He has been my mentor since the early days of IROS, and every time I learn from him, my perspective widens. This time was no different—it was a series of realizations that can only come from moving my hands and experiencing the work directly.


What I Saw Through Hands-On Practice

This time I was taught four dyeing techniques.
Each one had a completely different expression, and even just familiarizing myself with them required trial and error again and again.

  • Tie-dye (Lightning pattern)

  • Hippie dyeing

  • Ring dyeing

  • Itajime shibori (Hemp-leaf pattern)

These were just first steps into each method.
But even in that small glimpse, I felt I discovered hints of IROS’s unique “colors” and “ways of bleeding.”


Dyeing Notes (in brief)

Tie-dye (Lightning pattern) | T-shirt
The T-shirt is rolled evenly and bound with rubber bands.
Light dye is applied in stages, gradually deepening the color in three passes.
By consciously deciding where to let the cracks and folds absorb dye—or not—you create a lightning-like pattern across the surface.

Hippie dyeing | T-shirt
First, the whole shirt is dyed in a single color.
Then it’s twisted from the center, bound with rubber bands, and layered with more color from the outside in.
The result is an expanding pattern that emerges with strong elements of chance.

Ring dyeing | Tenugui (hand towel)
Sections of the cloth are pinched into small peaks and tied with rubber bands.
Dye is applied directly to those peaks.
By layering colors or combining tie-dye and hippie methods, playful and experimental designs appear.
It’s a highly freeform technique with plenty of room for creativity.

Itajime shibori (Hemp-leaf pattern) | Tenugui (hand towel)
The cloth is folded into thirds, then into equilateral triangles, clamped between wooden boards, and tightened with a vise.
Dye is carefully brushed onto the exposed areas.
When finished and dried, beautiful geometric hemp-leaf patterns emerge—so striking you can’t help but stare.


Closing Thoughts

When described in words, these processes may sound simple.
But in practice, what’s tested is not only how you dye, but how you perceive.
The way the color enters the fabric changes its entire expression, which is why honing technique truly matters.

At IROS, what we value is not so much the “depth” of dyeing, but the subtle bleeding of color.
This learning felt like one more step toward uncovering the roots of that identity.

I hope to bring these techniques into new products and workshops so you too can experience their beauty.
Stay tuned for the next update!


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