![Uchiyama-gami Snow-Bleached Washi: Iiyama Kozo Paper Guide [2026]](https://jpmono.com/wp-content/uploads/2026/05/japan-map-regions-and-prefectures-800x1050.png)
Uchiyama-gami (内山紙, “Uchiyama paper”) is handmade kozo (paper mulberry) washi from the Uchiyama district of Iiyama, in the deep-snow Chikuma River valley of northern Nagano. Tradition holds that the craft began in the Genroku era, around 1690, when a local farmer learned papermaking in Mino — in present-day Gifu — and carried the technique home as a winter livelihood for snowbound farming villages. It has been made there, by hand, for more than three hundred years.
Its signature is yukizarashi (雪晒し, “snow bleaching”), also called kanzarashi: the kozo fibers are spread out on the snow so that reflected ultraviolet light and ozone bleach them to a warm, chemical-free white while leaving the long, strong mulberry fibers intact. The result is a durable, light-diffusing paper long prized for shoji screens that withstand snow-country glare, and historically for daifukucho — the thick merchant account ledgers of the Edo period. It was designated a National Traditional Craft in 1976.
This guide is for international readers deciding whether genuine Iiyama kozo washi suits shoji repair, lamps and lighting, art and printmaking, or calligraphy. It explains the paper, how it compares with other Japanese washi traditions, where Iiyama sits on the map, and the practical considerations when buying from abroad.
🔄 Updated:
⏱️ Read time: ~9 min
Who this is for — and who should skip it
- Are repairing or re-papering traditional shoji screens and want authentic kozo paper
- Make paper lamps, lanterns, or lighting and value a warm, even light diffusion
- Work in printmaking, sumi-e, or calligraphy and want long-fiber, durable washi
- Prefer a chemical-free, snow-bleached white over bright optical-white machine paper
- Want a designated National Traditional Craft with a documented three-century history
- Need a guaranteed, locked-in price before ordering — pricing was not available in our data
- Want bright, uniform machine-made paper for everyday office printing
- Require an exact sheet size or weight confirmed in advance for a precise project
- Are unwilling to pay international shipping or possible customs on a Japan-sourced order
- Expect a glossy, coated surface — washi is matte, textured, and absorbent
Product overview (from published specs)
The table separates characteristics of Uchiyama-gami from details that vary by sheet or format. We keep item-level measurements and prices open rather than guessing.
| Attribute | Detail | Source |
|---|---|---|
| Material | Kozo (paper mulberry) fiber | Craft tradition |
| Bleaching method | Yukizarashi / kanzarashi (snow bleaching, chemical-free) | Craft tradition |
| Origin | Uchiyama district, Iiyama, Nagano Prefecture | Craft tradition |
| Designation | National Traditional Craft (designated 1976) | Craft tradition |
| Typical uses | Shoji screens, lamps/lighting, printmaking, calligraphy | Craft tradition |
| Sheet size / weight / count | — | — |
| Price | — | — |
📖 Glossary — key terms
- Washi (和紙) — traditional Japanese paper made from plant bast fibers, valued for strength and longevity.
- Kozo (楮, “paper mulberry”) — the most common washi fiber; long fibers give high tear strength.
- Yukizarashi / kanzarashi (雪晒し / 寒晒し, “snow / cold bleaching”) — spreading fibers on snow so reflected UV and ozone whiten them without chemicals.
- Shoji (障子) — sliding lattice screens covered in translucent paper; the classic application for this washi.
- Daifukucho (大福帳) — thick merchant account ledgers of the Edo period; durability made Uchiyama-gami a preferred stock.
- Genroku era (元禄) — the period around 1688–1704, when the craft is traditionally believed to have reached Iiyama.
Buying options
| Store | Item / Variant | Price (JPY + USD est.) | Notes |
|---|---|---|---|
| 🇺🇸 Amazon US (search) | Browse Japanese washi & kozo paper | varies (USD) | Best if you are shopping from the US — Prime shipping, USD pricing, no international customs. Amazon US carries Japanese washi, shoji paper, and calligraphy supplies from various makers; the exact Iiyama Uchiyama-gami piece ships from Japan (next row). |
| 🇯🇵 Amazon JP Global Store | Uchiyama-gami kozo washi | — | International shipping from Japan may be available. |
| Maker direct | Iiyama Uchiyama-gami cooperative / workshops | — | Not in dataset; some Iiyama workshops sell direct domestically. Verify international shipping individually. |
| Proxy services (Buyee / Tenso) | Forward from JP-only sellers | Item price + forwarding fee | Useful when a seller does not ship abroad. Adds a handling fee and a second shipping leg; customs may apply. |
Any USD amounts are approximate conversions based on a ¥150/USD baseline; exchange rates and prices for handmade washi vary.
What it does well
Weaknesses and things to verify before buying
- Confirm the current total before ordering.
- Sheet format and count vary. For shoji re-papering, measure your frame and confirm that the paper suits it.
- Surface absorbency varies. For calligraphy or printmaking, test a single sheet before committing to a full series; washi behaves differently from sized art paper.
- International shipping and customs add cost. A Japan-sourced order carries shipping and possible duties above local thresholds; budget for both.
- Not for everyday printing. This is matte, textured, absorbent handmade paper — unsuitable for laser/inkjet office use.
- Availability can change. Handmade craft items may disappear from sale; a proxy service or maker-direct order may then be needed.
Conclusion — which buyer type are you?
For shoji or fine art, genuine snow-bleached Iiyama kozo is chosen for its connection to the local washi tradition. Confirm the sheet size and intended use before purchase.
You want quality washi but flexibility on maker. Browse Amazon US for washi from several makers, comparing weight and price.
If price is the deciding factor, machine-made kozo-blend shoji paper is far cheaper — accept a brighter, less characterful white.
If you need printer paper or a locked price today, this handmade craft sheet is the wrong purchase.
Other ways to approach this purchase
Handmade craft paper rarely follows frequent discount cycles, but exchange-rate swings can lower the effective USD cost; watching the rate may help.
Some Iiyama workshops and the local cooperative sell paper directly; confirm direct shipping with the workshop before ordering.
If buying via Amazon US, points and card rewards apply normally; JP Global Store orders bill in JPY.
Buyee or Tenso can forward purchases from Japan-only sellers when direct international shipping is unavailable.
Where this comes from
Iiyama sits in the far north of Nagano, a landlocked, mountainous prefecture in central Japan. The city lies along the Chikuma River — the upper course of the Shinano, Japan’s longest river — in a valley walled by mountains that trap heavy winter snowfall. This is genuine snow country: the same climate band that, just over the prefectural border in Niigata, produces the snow-bleached ramie of Ojiya Chijimi. Snow here is not an obstacle to the craft; it is the tool.
That climate is exactly why papermaking took root. Farming stops when the valley is buried in snow, and the Genroku-era introduction of papermaking — traditionally dated to around 1690, when a local farmer is said to have learned the craft in Mino and brought it home — gave snowbound households a winter livelihood. The same snow that idled the fields became the bleaching agent: kozo fibers spread across the white surface are whitened by reflected ultraviolet light and ozone over the cold weeks, a chemical-free process now called yukizarashi.
- ~1690 (Genroku era) — A local farmer is traditionally believed to have learned papermaking in Mino (Gifu) and brought it to the Uchiyama district of Iiyama.
- 18th century — Papermaking spreads as a winter livelihood across snowbound farming villages in the valley.
- Edo period — Durable kozo paper is valued for daifukucho merchant ledgers and for shoji screens that withstand snow-country glare.
- Meiji onward — The craft continues as a regional industry, refining the yukizarashi snow-bleaching method.
- 1976 — Uchiyama-gami is designated a National Traditional Craft.
- 2026 — Still handmade by hand in Iiyama, more than three centuries after it began.
What “still made here” means is best understood through the snow itself. The bleaching cannot be rushed or relocated; it depends on a deep, reliable snowpack and weeks of winter light, which ties the craft permanently to this valley. The technique that whitens the paper is the same one a Genroku farmer would recognize, and the long kozo fibers it preserves are why the paper outlasts ordinary stock.
“The same snow that buried the fields for the winter became the thing that whitened the paper — the obstacle and the tool were one and the same.”
❓ Frequently Asked Questions
Does Amazon JP Global Store ship Uchiyama-gami internationally?
Paper and other craft goods shipped from Japan may be available to major destinations, but support, shipping charges, and customs duties vary by country. Check those costs before ordering.
What is yukizarashi (snow bleaching), and why does it matter?
Yukizarashi is the practice of spreading kozo fibers on the snow so reflected UV light and ozone whiten them without chemicals. It produces a warm, soft white and keeps the long fibers intact, which is why the paper stays strong.
Can I use Uchiyama-gami to re-paper shoji screens at home?
Yes—shoji is a traditional purpose for this paper. Measure your frame and choose a sheet width that matches the repair or project.
Is it suitable for art and printmaking?
The long fibers and chemical-free surface make it a candidate for woodblock printing, sumi-e, and calligraphy. Absorbency varies by sheet, so test a single sheet before committing to a series.
How is it different from Echizen or Mino washi?
All are kozo-based Japanese papers, but Uchiyama-gami is defined by its Iiyama snow-bleaching tradition and historic use for snow-country shoji and merchant ledgers. Echizen, Mino, Awa, and Sekishu each have distinct regional methods and uses — see the comparison links above.
How should I store washi paper?
Keep it flat, dry, and out of direct sunlight. Washi is durable but absorbs humidity; a dry, dark drawer or acid-free folder preserves the color and surface.
Why is no price shown in this guide?
This article was prepared with AI assistance and reviewed against the source data available at the time of writing. Where data was incomplete (notably pricing and exact sheet specifications), the gaps are stated plainly rather than filled by estimation.
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