Bookbinding - Rechoso

Japanese: 列帖装 - れっちょうそう

A method of binding Japanese books. Also known as tetchouso. A method used for binding college notebooks, in which several sheets of paper are stacked and folded in half, then bound together with thread, and the bundles are then sewn together again. It is distinguished from kochosou in that it uses thread rather than glue. This method was often used in the Heian and Kamakura periods, but it is not suitable for printed books because it uses both sides of the paper. When paper became less valuable, it was eventually overtaken by saddle stitching due to its simplicity.

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

和書の装丁の仕方のひとつ。綴葉装(てっちょうそう)とも。いわゆる大学ノートの綴じ方で，数枚の紙を重ね半分に折ったものを一括りずつ糸を用いて綴じ，数括りをさらにかがったもの。糊を使わず糸を使う点で，胡蝶装と区別される。平安・鎌倉時代によく用いられた方法で，紙の両面を使用するため版本などには向かず，紙が貴重品でなくなると，その簡便さからやがて袋綴じに圧倒された。

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