Subjects Taught
Line operating.—Making the negative without the use of the screen for a literally exact reproduction of pen and ink work, etc.
Line printing.—Printing the line negative onto the coated metal.
Line etching.—Corroding the metal with etching solutions after it has been printed upon, thereby producing a printing surface.
Halftone operating.—The process of making screen negatives ready in every respect for the printer.
Halftone printing.—Printing of the stipple negative on the coated zinc or copper plate.
Halftone etching.—Etching the metal plate with the different solutions to produce a relief printing surface that will take the ink in the proper relations.
Finishing.—Working with tools upon the etched metal plates to improve them in various ways, remove defects, etc.
Routing.—Removing with the routing machines undesirable surface from the etched metal plates.
Blocking.—Mounting the metal and making it ready for the hands of the printer.