Refers to a blueprint or cyanotype print, historically used for architectural and engineering plans. The term 青写真 is more common in modern Japanese, but 青焼き is still understood in technical contexts.
See also: 青写真
Old blueprints were stored as cyanotypes.
This cyanotype drawing is hard to read.
Standard spelling for the blueprint/cyanotype meaning.
Abbreviated spelling, also used.
Compound of 青 (blue) and 焼き (baking/printing), referring to the cyanotype photographic printing process that produces blue-toned images.