Paper formation begins before a wet sheet appears on the screen. The Kojiro Washi Preservation Society describes how prepared plant fibre, a root-derived liquid and the movement of the screen work together. The explanation is specific to its papermaking account.
Technique and structure
The society obtains neri from the roots of tororo-aoi and explains its role in keeping individual fibres dispersed in water. In nagashi-zuki, repeated scooping and movement of the suketa build the sheet to the intended thickness. Its account distinguishes tame-zuki for thicker papers such as cards and postcards: the liquid is retained in the frame and moved more gently. These are differences in sheet formation, not two names for the final drying stage.
A process name does not specify every finished sheet
The society describes pressing and drying separately. Its papermaking account also includes both kozo and mitsumata as raw materials; the technique name alone does not identify the fibre content of an individual sheet. The source does not provide a universal specification for every paper called washi.
For international readers
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日本語
神代和紙：ネリと簀桁の動きが担う役割
神代和紙保存会は、トロロアオイの根から採るネリが繊維を水中に分散させると説明します。流し漉きでは簀桁を動かして厚さを重ね、溜め漉きは名刺やはがきなど厚い紙に使います。この保存会の工程説明を、すべての和紙の製法には一般化しません。