Meet the subject

Urushi: from tree sap to a crafted surface

Urushi is natural lacquer obtained from the lacquer tree. Craftspeople use it to coat, join and decorate objects, from everyday bowls to furniture and works of art. Understanding the craft means separating raw-material collection from making an object’s body, building its surface and adding decoration.

Applying lacquer to an object

Urushi names the material; lacquerware names objects made with it.

Curing natural lacquer requires suitable conditions, rather than sunlight alone.

Maki-e, raden, kinma and chōshitsu use different relationships between material and surface.

01

Before the finished object

Collecting sap

Tappers cut the bark and collect the exuded sap, which is filtered and processed for its intended use. Japan’s Forestry Agency describes repeated collection from early summer into autumn in the practice it introduces. Tapping belongs to raw-material production, distinct from applying lacquer in a workshop.

A body beneath the surface

A wooden bowl is only one possibility. Bamboo basketry can provide a body, while cloth and lacquer also feature in dry-lacquer methods. The body supplies form; preparation and coating build the surface. Decorative additions do not define every lacquer object. Wajima honkataji provides one example: cloth reinforces vulnerable areas, then lacquer and local ground powder build the base through repeated coating, curing and smoothing from coarse to fine. After final coating, a nuritate finish retains the painted surface, while roiro adds polishing. This is a regional method, not a universal recipe.

Nunokise: cloth reinforces the rim

Wajima Lacquerware Hall

Ground preparation: applying base material with a spatula

Wajima Lacquerware Hall

Top coating: brushing on lacquer

Wajima Lacquerware Hall

Different objects illustrate cloth reinforcement, ground work and top coating. Successively finer grounds are cured and worked between applications, leaving the cloth buried beneath the finished surface.

A curing cabinet is not a kiln

An enzyme in natural lacquer participates in curing under suitable warmth, humidity and exposure to air. An urushi-buro provides controlled conditions. “Drying” here differs from evaporating water out of laundry; the cabinet should not be imagined as a furnace firing the object.

02

Different ways to form a design

Powder and shell

Maki-e uses lacquer with powders such as gold or silver to form decoration; raden introduces shell inlay. They can coexist. An eighteenth-century Japanese writing box in the Met combines gold and silver maki-e, coloured lacquer and mother-of-pearl, showing different materials within one decorated surface.

Decorated surface of an eighteenth-century Japanese writing box: gold and silver maki-e, coloured lacquer and shell inlay; Metropolitan Museum of Art

Kinma is not carved lacquer in general

Kagawa’s account distinguishes kinma—cutting a design, filling the incisions with coloured lacquer and polishing—from chōshitsu, carving built-up lacquer layers. These are alternative decorative techniques.

03

Changing uses and production

Earlier than Buddhist sculpture

Lacquered objects survive from Japanese Jōmon sites. Later continental exchange and Buddhism brought further technical developments during the Asuka and Nara periods, including dry-lacquer sculpture. Maki-e and shell decoration developed in Heian furnishings and architectural interiors. These are successive applications, not a claim that all lacquer use began with Buddhism.

Kōfukuji’s Ashura, 734, made in hollow dry lacquer; current owner photograph

Kōfukuji

A twelfth-century Heian lacquer box; Tokyo National Museum

Tokyo National Museum / e-Museum

Dry lacquer builds a hollow form with cloth and lacquer. The photograph shows the finished exterior.

Households, tea and overseas markets

Warrior furnishings, tea utensils and trade created different demands. Edo-period regional industries produced everyday objects as well as elaborate commissions; decorated lacquerware also travelled abroad. A luxurious gold surface represents one part of that varied production. In late Edo Kagawa, Tamakaji Zōkoku studied and adapted techniques connected with China and Southeast Asia, contributing to the region’s kinma and carved-lacquer traditions.

Regional craft and art

Meiji export promotion affected regional production. Postwar choices included natural lacquer and synthetic-resin coatings; similar-looking objects need not use the same material. Training also developed through named institutions: Kagawa established its lacquer institute in 1954, began teaching in 1955, introduced a three-year course in 1982 and moved into the Kagawa Culture Hall in 2009, supporting artists and technical practitioners.

Check your understanding

Must lacquerware have a wooden body?

No. Bamboo and cloth also belong to different construction methods.

Does sunlight alone cure natural lacquer?

No. Enzymatic curing depends on suitable environmental conditions.

Can maki-e and raden share an object?

Yes. Powder decoration and shell inlay can be combined.

Is kinma simply a relief carved from thick lacquer?

No. Kinma cuts and fills incisions; chōshitsu carves built-up lacquer layers.

Sources and images

Decorated surface of an eighteenth-century Japanese writing box: gold and silver maki-e, coloured lacquer and shell inlay; Metropolitan Museum of Art

Metropolitan Museum of Art,29.100.693

H. O. Havemeyer Collection, Bequest of Mrs. H. O. Havemeyer,1929 · Public Domain