Technology/techniques
1. Drying by stacking involves "transferring" the materials.
2. Woodworking shall be carried out by one of the following methods:
(1) For chests of drawers and display cabinets, one of the following shall apply:
(i) In the case of "framework," the following techniques or methods shall be used:
1) The visible and deep dimensions of the frame (excluding the horizontal frame) shall be 25 millimeters or more and 45 millimeters or more, respectively.
2) The width of the horizontal beams shall be 25 millimeters or more.
3) The side panels and back panel shall be made of solid wood. In this case, the thickness of the wood shall be 7 millimeters or more.
4) The joints of the frame's sills shall be made by a three-sided mortise and tenon joint in the case of a vertical sill and upper/lower sill, and by a three-sided mortise and tenon joint in the case of a vertical sill and horizontal sill.
5) When attaching a door, the door components shall be joined using mortise and tenon joints, mortise and tenon joints, face and back mortise and tenon joints, mitered tongue and groove joints, or tongue and groove end-toe joints.
6) When adding drawers, the drawer components shall be joined using wrap joints and dovetail joints.
(b) In the case of wooden joinery, the following techniques or methods shall be used:
1) The thickness of the boards used for the top panel, side panels, shelves, and support boards shall be 22 millimeters or more.
2) The backing board shall be made of solid wood. In this case, the thickness of the board shall be 7 millimeters or more.
3) The top panel and side panels shall be joined by a dovetail joint with five or more panels, a dovetail joint with nine or more panels, or a mortise and tenon joint with a dovetail backing.
4) When attaching a door, the door components shall be joined using mortise and tenon joints, mortise and tenon joints, face and back mortise and tenon joints, mitered tongue and groove joints, or tongue and tenon end joints.
5) When adding drawers, the drawer components shall be joined using wrap joints and dovetail joints.
(2) For low tables, the following techniques or methods shall be used:
(i) The tabletop material shall be solid wood. In this case, the thickness of the material shall be 9 millimeters or more.
The joints of the frame are made by interlocking tenons and dowels.
The joint between the top plate and the suction cup should be made using a dovetail joint.
2. The joints between the top frame and the legs shall be made by three-way miter joints or square mortise and tenon joints.
(3) The woodworking of the writing desk shall be carried out using the following techniques or methods:
(i) The tabletop material shall be solid wood. In this case, the thickness of the material shall be 22 millimeters or more.
(b) The joint between the tabletop and the legs shall be a mortise and tenon joint with a split wedge in the case of plank legs, and a tongue and groove joint with a sliding joint in the case of assembled legs.
3. Painting shall be done in one of the following ways:
(1) In the case of wiped lacquer painting, raw lacquer is applied repeatedly, a mixture of raw lacquer and pine soot is applied, and then refined raw lacquer is repeatedly rubbed.
(2) In the case of Ikkanbari lacquerware, the process involves applying cotton, underlayment, and cloth, followed by rust-colored paint and an intermediate coat, and then applying refined lacquer.
(3) When applying persimmon tannin oil by wiping, apply persimmon tannin and drying oil repeatedly, then polish with a cloth.
4. When attaching metal fittings, the surface of the fittings shall be colored as follows: if made of iron, a mixture of pine resin, white wax, and pine soot; if made of raw lacquer, a mixture of iron powder; or using raw cotton; if made of copper or copper alloy, polished.






