Nerikomi is a traditional Japanese decorative technique that involves combining different colored clays to create unique patterns integrated into the structure of the ceramic piece. Unlike surface techniques, such as painting or sgraffito, nerikomi integrates the colors directly into the clay mass, which means that the patterns remain visible even if the piece is cut, sanded or worn.
The technique is done by laminating layers of clay of contrasting colors and manipulating them to form specific patterns, such as veins, spirals or mosaics. Nerikomi is a technique that requires precision and planning, as the final design depends on the order and arrangement of the clays.
Interesting Fact
Although primarily associated with Japanese ceramics, nerikomi has parallels with techniques such as agateware in Europe, where different colored clay is also used to produce similar effects.
Helpful Tip
Use clays with similar shrinkage coefficients to avoid separation problems or cracking during firing. Work on a clean, smooth surface to maintain the crispness of the patterns and avoid mixing colors accidentally. After bisque firing, sand the surface to highlight designs before applying a glaze.