Technology/techniques
1. The preparation of the base coat and the application of lacquer shall be carried out in one of the following ways:
(1) In the case of multi-colored lacquering, the following techniques or methods shall be used:
(i) For the base coat, raw lacquer or a mixture of raw lacquer and rice paste is applied directly to the wood, followed by "cloth covering" or "paper covering," and then a mixture of raw lacquer and polishing powder is repeatedly applied.
(b) The process of applying lacquer involves applying an undercoat, sanding the undercoat, and then "rubbing" the lacquer, followed by applying refined roiro lacquer, and then repeatedly "rubbing" and polishing with refined raw lacquer.
(2) In the case of lacquering, the following techniques or methods shall be used:
(i) For the base coat, raw lacquer or a mixture of raw lacquer and rice paste is applied directly to the wood, followed by "cloth covering" or "paper covering," and then a mixture of raw lacquer and polishing powder is repeatedly applied.
(b) For lacquering, a base coat is applied using refined colored lacquer, followed by sanding and "rubbing" of the base coat, and then a refined transparent lacquer is applied.
(3) In the case of wood lacquering, the following techniques or methods shall be used:
(i) For the base coat, apply a mixture of persimmon tannin and polishing powder, and a mixture of persimmon tannin and red iron oxide, then apply a tannin undercoat and polish the tannin undercoat.
(b) The lacquering process involves repeatedly applying and sanding the undercoat, then "rubbing" the lacquer, and finally applying refined transparent lacquer.
(4) In the case of genuine lacquering, the following techniques or methods shall be used:
(i) For the base coat, raw lacquer or a mixture of raw lacquer and rice paste is applied directly to the wood, followed by "cloth covering" or "paper covering," and then a mixture of raw lacquer and polishing powder is repeatedly applied.
The lacquering process involves applying an undercoat, sanding the undercoat, and then applying a "rubbed lacquer," followed by the application of "true lacquer" or refined black lacquer.
(5) In the case of persimmon lacquerware, the following techniques or methods shall be used:
(i) For the base coat, apply a mixture of persimmon tannin and polishing powder, and a mixture of persimmon tannin and red iron oxide, then apply a tannin undercoat and polish the tannin undercoat.
(b) The lacquering process involves applying refined lacquer.
(6) In the case of cloth-textured lacquering, the following techniques or methods shall be used:
(i) For the base coat, apply raw lacquer or a mixture of raw lacquer and rice paste directly to the wood, then apply a cloth covering using hemp cloth, etc., followed by a rust undercoat and a rust top coat, and finally polish the surface to remove the rust while leaving the cloth texture visible.
(b) The lacquering process involves applying an undercoat, sanding the undercoat, and then applying refined lacquer after the "rubbing lacquer" has been completed.
(7) In the case of cloth lacquering, the following techniques or methods shall be used:
(i) For the base coat, raw lacquer or a mixture of raw lacquer and rice paste is applied directly to the wood, followed by "cloth covering" using hemp cloth, and then "cut rust application" and "rust cloth polishing."
(b) The process of applying lacquer involves repeatedly rubbing refined lacquer with a cloth, and then applying the refined lacquer.
(8) In the case of Ikkan-nuri, the following techniques or methods shall be used:
(i) For the base coat, a mixture of raw lacquer and rice paste is used, or rice paste is used to apply paper, followed by repeated application of lacquer or paste, and then sanding.
(b) Lacquering involves first applying refined raw lacquer by "rubbing" it in, and then applying refined lacquer.
2. The woodworking shall be carried out in one of the following ways:
(1) In the case of turned metalwork, the shape shall be formed using a lathe and a lathe plane.
(2) In the case of sheet metal, it shall be formed by "cutting, bending, sawing, and shaping", or by "miter cutting" and "edge notching".
(3) In the case of bentwood products, the material is boiled and then shaped by "machi-tsuke".
(4) In the case of dry lacquer, a mixture of raw lacquer and polishing powder, etc., is applied to the original or core to form the shape. In this case, "cloth covering" or "paper covering" is performed.
3. When decoration is applied, it shall be done using maki-e, raden, aogai, or foil painting. In this case, raden or aogai shall be done with a "roiro finish."











