Orihon - Orihon

A book bound by folding a scroll to the same width and attaching covers to the front and back. Along with the scroll, this is an old binding method. When a scroll is long, it is extremely inconvenient to unfold and rewind it to read. A folded book is a book that has been folded. This binding method is said to have been used since the Tang dynasty. In the history of book binding, it can be said to be a transitional form from scrolls to booklets. This binding method is often used for books such as calligraphy, so it is also called a calligraphy binding or calligraphy style. There is also a variation in the cover of a folded book, where the back cover is three times the surface of the first fold, wraps around the top of the front cover from both sides, and fastens it with a string attached to the right edge. There are many books printed in this style from the Song dynasty.

[Kazumasa Kaneko]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

巻物を同じ幅に折り畳み、その前後に表紙をつけて製本した本。巻子本(かんすぼん)とともに古い形の装訂法である。巻子本は長いものになると、広げたり巻き戻したり読むのに甚だ不便であった。折本はそれを折り畳んだ姿になる。この装訂法はすでに唐代から行われたという。書物装訂史のうえでは、巻子本から冊子本に移っていく過渡期の形ともいえる。法帖(ほうじょう)などに多くこの装訂法を用いているので、帖装本、法帖仕立ともいう。なお、折本の表紙には、後ろ表紙を一折の面の3倍にして、前表紙の上を左右から包み、右端につけた紐(ひも)を巻いて留めるという変形のものもある。宋(そう)代の版経にこの形式のものが少なくない。

［金子和正］

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