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Deeper Knowledge · Decorative Systems
Structure, Not Ornament
← Porcelain
Four Decorative Systems
Underglaze Decoration
Decoration placed beneath the glaze and integrated into the fired surface.
Overglaze Decoration
Decoration applied over an already glazed porcelain surface.
Combined Decoration
Decoration that deliberately combines underglaze and overglaze work.
Monochrome Glazes
A single glazed colour field in which surface, depth and form carry the visual character.
In Jingdezhen, decoration is not applied — it is constructed. Across dynasties, painters, kiln masters, and enamel specialists developed distinct decorative systems. These systems were not trends. They were technical frameworks: defined by firing sequence, mineral chemistry, pigment stability, and procedural discipline.
A decorative system determines:
When colour is applied
How many firings are required
Which pigments can survive the kiln
How line interacts with glaze
How surface and body relate
It is the invisible structure beneath the visible image. Understanding Jingdezhen porcelain begins here.
Underglaze Systems
Underglaze decoration is applied directly to the porcelain body before glazing and firing. The design is sealed beneath a transparent glaze and fused in a single high-temperature firing. The result is depth, permanence, and structural clarity.
Example techniques:
Qinghua (Blue-and-White)
Underglaze Red
These systems rely on mineral stability at extreme temperatures and demand precision in brush control.
Explore Underglaze Decoration →Overglaze Systems
Overglaze decoration is applied after the first high-temperature firing. Enamels are painted onto the glazed surface and fired again at lower temperatures. This allows expanded colour range and greater painterly freedom.
Example techniques:
Wucai
Fencai (Famille Rose)
Falangcai
These systems require additional firings and layered discipline.
Explore Overglaze Decoration →Combined Systems
Some decorative systems combine underglaze and overglaze techniques. These require multiple firings, precise alignment of painted layers, and technical control across stages.
Example technique:
Doucai
Doucai represents structural coordination — colour placed above and below glaze in deliberate relationship.
Explore Combined Decoration →Monochrome Systems
Not all porcelain relies on painted imagery. Monochrome systems emphasise glaze control, mineral composition, kiln atmosphere, and subtle variation.
Examples include:
Celadon
Blanc de Chine
Copper Reds
Imperial Yellows
In these systems, refinement replaces illustration.
Explore Monochrome Glazes →Why This Matters
Decoration in Jingdezhen is not an aesthetic layer.
Continue exploring