LITHOGRAPHIC PRINTING PLATE

PROBLEM TO BE SOLVED: To obtain excellent wash-off property, ink acceptivity and ink removing property by incorporating monosaccharides or oligosaccharides into a lithographic printing material. SOLUTION: This lithographic printing material contains monosaccharides or ollgosaccharides. The monosaccharides used are aldehydes or ketones of polyalcohols expressed by Cn (H2 O)n (n>3) and these compds. are no more hydrolyzed. Oligosaccharides are medium saccharides between monosaccharides and polysaccharides and consist of 2 to 6 molecules of monosaccharides bonded. These compds. produce as many monosaccharides by hydrolysis. The monosaccharides and oligosaccharides are added, for example, by 0.05 to 10 g/m , preferably by 0.1 to 5 g/m to the lithographic printing material having an aluminum base body. The monosaccharides and oligosaccharides are added into a silver halide emulsion layer, a physical developing nuclear layer, or an intermediate layer between the silver halide emulsion layer and the physical developing nuclear layer. The monosaccharides and oligosaccharides are preferably incorporated into layers under the silver halide emulsion layer, namely, into the physical developing nuclear layer or the intermediate layer, and especially preferably into the intermediate layer.