is a specialist Japanese paper. It is an extremely thin kōzo paper that is almost transparent. One of its uses is for archival conservation. It has also been used for lighting design. The paper is produced in the

Kochi prefecture Kochi (), also known as Cochin ( ) (List of renamed Indian cities and states#Kerala, the official name until 1996) is a major port city on the Malabar Coast of India bordering the Laccadive Sea, which is a part of the Arabian Sea. It is part ...

of Japan by the company Hidaka Washi since 1949. The product is made with ''kozo'' (stems of

mulberry ''Morus'', a genus of flowering plants in the family Moraceae, consists of diverse species of deciduous trees commonly known as mulberries, growing wild and under cultivation in many temperate world regions. Generally, the genus has 64 identif ...

trees), alkaline water and ''neri'' (a liquid from the tororo-aoi plant).

References

Japanese paper Conservation and restoration materials {{Japan-culture-stub