Tissue paper (chirigami) - Chirigami

Japanese: ちり紙(塵紙) - ちりがみ

In handmade washi paper, the word "chiri" does not mean trash or filth, but refers to the black bark of paper mulberry and other trees, and thick bundles of fibers. For example, the process of removing dust in the papermaking process refers to the removal of the black bark and bundles. Therefore, the original chiri paper was made by filtering the cuticle, epidermis, and black bark of paper mulberry bark that had been removed to scoop high-quality white paper, and the residue and black bark of paper mulberry bark that was not completely crushed appears on the surface of the paper. Also, the paper stock liquid at the end of each day's papermaking process contains a large amount of the chiri removed during the scooping process, and paper filtered with this remaining liquid also becomes chiri paper.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

手すき和紙において〈ちり〉という場合，ごみや汚物などの意味ではなく，コウゾなどの樹皮の黒皮や繊維の太い結束などをさす。たとえば，製紙工程でちり取り(除塵（じよじん）)作業とよばれるものは，黒皮や結束を取り除く作業をさす。したがって本来のちり紙は，上等な白い紙をすくために取り除いたコウゾ皮の甘皮部分や表皮，黒皮などですいたものをいい，十分に砕けきれずに残ったコウゾ皮のかすや黒皮が紙面に現れている。また毎日の紙すき作業の終りの紙料液には，すく際に除いたちりが多量に含まれており，この残液ですいた紙もちり紙となる。

出典　株式会社平凡社世界大百科事典第２版について　情報

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