Japanese tissue is a thin, strong paper made from vegetable fibers. Japanese tissue may be made from one of three plants, the kozo plant (Broussonetia papyrifera, Paper Mulberry tree), the mitsumata (Edgeworthia chrysantha) shrub and the gampi tree (Diplomorpha sikokiana). The long, strong fibers of the kozo plant produce very strong, dimensionally stable papers, and are the most commonly used fibers in the making of Japanese paper (washi). Tissue made from kozo, or kozogami, comes in varying thicknesses and colors, and is an ideal paper to use in the mending of books. The majority of mending tissues are made from kozo fibers, though mitsumata and gampi papers also are used.
National Treasures 3
Hosokawa Ohban: 100% kozo. This is heavier than other Japanese papers and is used as a backing for documents and maps.
There are three types of Japanese National Treasures:
1. National Treasures: paintings (art works), buildings, etc.
2. Living Natinal Treasures: person who have distinguishing skills in catagories, such as music, dance, ceramics, bamboo, paper-making, kimono fabrics, etc.
3. Important Intengible Culture Asset: consists of groups who deserve, maintain traditional craft skills, etc. (specific techniques used in a particular craft).