Chemical graining: the lithographicplate surface is etched to produce a fine grain by the application of a strong acid or alkali solution.
化学磨版:用强酸或强碱溶液在平版印版的版面上腐蚀,造成幼细微粒表面。
2
Air eraser Miniature sand-blasting hand appliance, using compressed air and pumice for removing superfluous lithographic images from the plate.
擦版气笔手提的小型喷砂器,用压缩空气和浮石粉去除平版上多余的印纹。
3
Planographic printing: printing from a plate where the images and non-images are on the same plane. For example, lithographic printing, offset and collotype.