Itoire: The origin is unknown, but it has been performed in the Bunka-Bunsei period. Itoire is the reinforcement method of paper patterns that are carved extra-fine stripes or large designs on white textures. It has been done by women. First, peeled off one piece of pattern paper into two pieces (top and bottom paper). Tuck raw silk stretched vertically, horizontally and diagonally between the two pieces. Repaste them quickly using persimmon tannin, and strongly blow off extra tannin. All materials are well-examined: nijuichinaka (thin spring cotton crops) for raw silk, and persimmon tannin after 5-year dry and with five degrees in density. Because itoire uses extremely thin raw silk, it does not like winds. Also because persimmon tannin, as adhesive agent, is very reactive to temperature and humidity changes, the appropriate season and time for this process is very limited. Once started, carvers cannot leave for a few hours. After “shabari” technique was introduced around 1921 (Taisho 10), itoire is used for special carving patterns, such as extremely-fine shimabori, etc.