METHOD AND PAPER FOR PRINTING BY MAGNETOGRAPHY AND DOCUMENTS PRINTED ON PAPER OF THIS TYPE

摘要

METHOD AND PAPER FOR PRINTING BY MAGNETOGRAPHY AND DOCUMENTS PRINTED ON PAPER OF THIS TYPE A method for printing by magnetography under atmospheric conditions of relative humidity exceeding 65 or even 75 % consists in transferring to a sheet of paper a fusible magnetic ink in powdered form which is distributed on a temporary magnetizable support in accordance with the configuration to be produced, whereupon the ink is fixed by fusion on the sheet of paper. The paper has a surface resistivity of at least 1010 ohms square and a relative smoothness of at least 20 Beck.