Paper decoration - Ryōshisōshoku

Japanese: 料紙装飾 - りょうしそうしょく

Since ancient times, people have tried to make paper easier to write on and to preserve it for a long time. For example, there are techniques such as beating the paper to make it smooth (uchigami), polishing the paper with a jewel or tusk, and dyeing it brown with ambrosia to repel insects. Gradually, decorative techniques were developed, such as wax paper, in which paper is placed on a woodblock with a carved design and polished with a jewel or tusk to create a pattern with shiny lines, or colored paper dyed with various plants such as sappan, kariyasu, and indigo.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

紙を書きやすく，また長く保存するための工夫は，古くから行われてきた。たとえば紙をたたいて平滑にする打紙（うちがみ）や，玉や牙で磨く瑩（けい）紙，防虫のため黄蘗(キハダ)で茶色に染める努力などである。これらからしだいに，文様を彫った版木に紙をのせ，玉や牙で磨いて光沢のある線で文様を表した蠟箋（ろうせん）あるいは蘇芳（すおう），苅安（かりやす），藍（あい）など各種各様の植物染による色紙などの装飾技法が生み出されてきた。

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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