noun
photoengraving; zinc etching
A printing process using a zinc plate with a light-sensitive coating to create a relief image. Technical term used in printing and graphic arts.
この印刷物は亜鉛凸版で作られました。
This printed material was made using zinc photoengraving.
凸版印刷 is the general term for relief printing, while 亜鉛凸版 specifically refers to the zinc plate process.
Compound of 亜鉛 (あえん, 'zinc') and 凸版 (とっぱん, 'relief printing plate').