Valuable Receipts. Transferring Prints to Glass, Wood, &c.

Scientific American 19, 9.5.1863

When it is desired to transfer a steel, copper or lithographic print to glass, the first operation is to coat the glass with dilute lac or clear copal varnish. The print is tehn moistened with water, and while the varnish remains sticky, the paper is placed on the glass with the print side upon the varnish; it is then pressed gently to make it adhere. Several folds of white paper are now placed upon the back of the print, also a broad with a light weight theron to keep the print and varnish in contact till both are dry. After this the paper is moistened and rubbed off gently with the fingers, when the ink composing the print is left afhering to the glass. The several parts of the print may then be painted with appropriate colors and then finished with a ground coat over all. Prints may be transferred to wood in the same manner. The common mode of transferring prints to wooden blocks, for engravig, is to immerse a print for a short period in a solution of potash, then place it upon the block and press it. The potash softens the ink on the paper of the print, and, when placed upon the bloack of wood and pressed, the impression is made in the same manner as printing in the usual way. Prints are also transferred thus to stones for lithographic printing; also to plates of zinc for printing in a lithographic press.