Technology/techniques
1. In the case of tapestries, they shall be tapestries woven using the following techniques or methods:
(1) The fabric shall be plain weave with pre-dyed yarn.
(2) The weft threads (excluding the patterned areas) are beaten diagonally into the reed using a hand-thrown shuttle.
(3) For patterns, the weft threads in the patterned areas are beaten diagonally into the reed using a small shuttle, and then pulled in parallel to the reed using a fingernail or a slitting tool.
2. In the case of brocade, one of the following shall apply:
(1) In the case of warp brocade, it shall be a patterned fabric woven using the following techniques or methods:
(i) The fabric shall be a pre-dyed plain weave or twill weave using a "Jacquard loom".
(b) The warp threads shall consist of three or more colors, drawn from three or more male spools to form a group, and then pulled into the reed one by one by hand.
(h) The weft threads should be woven in by alternating between "shadow threads" and "ground weft threads." In this case, the density of the weft threads should be 40 or more per centimeter.
The crest should be created using the warp threads.
(2) In the case of weft brocade, it shall be a patterned fabric woven using the following techniques or methods:
(i) The fabric shall be a modified twill or plain weave using a pre-dyed or pre-processed "Jacquard loom".
(b) For weaving, a "hand-thrown shuttle," a "drawn shuttle," or "eight or more shuttles," six or more "heddles," or a "drawn foil device" shall be used.
C. The crest shall be represented by the weft thread. In this case, if weaving is done using eight or more shuttles, the crest shall be "embroidered".
3. In the case of satin, it shall be a patterned fabric woven using the following techniques or methods:
(1) The fabric shall be pre-dyed or pre-processed satin weave using a "Jacquard loom".
(2) For weaving, a hand-thrown shuttle, a pull shuttle, or eight or more shuttles, ten or more heddles, or a pull device shall be used.
(3) The crest shall be either a "ground-raised crest" or an "embroidered crest".
4. In the case of vermilion silk, it shall be a patterned fabric woven using the following techniques or methods:
(1) The fabric shall be a pre-dyed satin weave using a "Jacquard loom".
(2) For weaving, a hand-thrown shuttle, a pull shuttle, or eight or more shuttles, six or more heddles, or a pull device shall be used.
(3) The crest shall be represented by the weft thread. In this case, if weaving is done using "eight or more shuttles", the crest shall be "embroidered".
5. In the case of Shōba, it shall be a patterned fabric woven using the following techniques or methods:
(1) The fabric shall be a pre-dyed twill weave, satin weave, or plain weave variation using a "Jacquard loom".
(2) For weaving, a hand-thrown shuttle, a pull shuttle, or a double-leaf shuttle shall be used.
(3) The crest shall be a "ground-raised crest".
6. For ventilation, the fabric shall be a patterned fabric woven using the following techniques or methods:
(1) The fabric shall be a double weave using a "Jacquard loom" with pre-dyed or pre-processed yarn.
(2) Weaving shall be done by double weaving using two or more warp threads and two or more weft threads of different colors so that the front and back of the fabric can be reversed.
(3) To have a "stitched crest" applied.
(4) The warp thread density shall be 120 threads or more per centimeter, and the weft thread density shall be 40 threads or more per centimeter.
7. In the case of gauze weave, it shall be a gauze fabric woven using the following techniques or methods:
(1) The fabric shall be made using a "Jacquard loom" for gauze weaving.
(2) For weaving, a hand-thrown shuttle, a pull shuttle, a pattern shaker, or a modified reed shall be used.
8. In the case of velvet, it shall be a pile fabric woven using the following techniques or methods:
(1) The fabric shall be pre-dyed or pre-processed and woven in a warp pile weave.
(2) The pile is formed by manually inserting "pile wire" parallel to the reed.
9. In the case of genuine crepe weave, the crepe fabric shall be woven using the following techniques or methods.
(1) The fabric must be pre-dyed or pre-processed, and be plain weave or double weave.
(2) The threads used for the Omeshi silk are twisted at the bottom and then manually mixed with rice starch or other plant-based starches.
(3) For twisting the silk threads of the Omeshi silk, use the Hachijo-shiki twisting machine.
(4) The wrinkles should be formed by "hot water massage".
(5) The density of the warp threads shall be 100 or more per centimeter.
10. In the case of ikat weaving, the ikat fabric shall be woven using the following techniques or methods:
(1) The fabric must be pre-dyed plain weave or satin weave.
(2) Kasuri thread shall be used as warp thread or as both warp and weft thread.
(3) In the case of vertical ikat weaving, the ikat patterns of the ikat threads sent out from the male reel are manually aligned to create the ikat pattern.
(4) In the case of warp and weft ikat weaving, the warp ikat and weft ikat are matched by hand to create the ikat pattern.
(5) The dyeing method for the ikat thread shall be by "hand tying," "hand printing," or "board clamping."
11. In the case of Tsumugi silk, it shall be a plain fabric, patterned fabric, striped fabric, or similar fabric woven using the following techniques or methods:
(1) The fabric shall be plain weave with pre-dyed yarn.
(2) A hand-thrown shuttle or a pull shuttle shall be used to insert the weft threads.
(3) The warp threads shall be made of raw silk or spun silk, and the weft threads shall be made of slub silk or spun silk.













