noun
spiderwort-dyed paper; paper dyed with spiderwort for sketching in dyeing
A traditional Japanese craft material: paper dyed with the blue pigment from spiderwort flowers, used for drawing rough outlines when dyeing textiles. The marks disappear when wet, so it is ideal for temporary sketches on fabric.
友禅染の下絵を描くとき、青花紙を使います。
When drawing the rough sketch for yuzen dyeing, we use spiderwort-dyed paper.
Compound of 青花 (aobana, 'spiderwort flower') and 紙 (kami, 'paper'), referring to paper dyed with the blue pigment from spiderwort blossoms.