imitation Japanese vellum
A type of thick, smooth paper resembling traditional Japanese vellum, often used for calligraphy practice, art projects, or formal documents.
書道の練習に模造紙を使っています。
I use imitation Japanese vellum for calligraphy practice.
模造紙 is a larger, thinner sheet often used for posters or group work, while 画用紙 is thicker paper suited for individual drawing and craft projects.
模造 (imitation) + 紙 (paper). The term refers to a paper that imitates traditional Japanese vellum.