LITHOGRAPHIC BAND FOR ELECTROCHEMICAL GRAINING, AS WELL AS METHOD FOR ITS MANUFACTURE Russian patent published in 2015 - IPC B41N1/08 

FIELD: metallurgy.

SUBSTANCE: band for electrochemical graining consists of a rolled aluminium alloy. Band surface has a topography, the maximum peak height R_p or S_p of which is not more than 1.4 mcm, preferably not more than 1.2 mcm, in particular not more than 1.0 mcm. Besides, the invention relates to a manufacturing method of a lithographic band, as per which a lithographic band consisting of an aluminium alloy is subject to cold rolling and as per which, after the last run of the cold rolling, it is subject to degreasing treatment with an etching stage with a water etching medium, which contains at least 1.5-3 wt % of the mixture of 5-40% sodium tripolyphosphate, 3-10 wt % of sodium gluconate, 3-8 wt % non-ionic and anionic SAS, and when necessary, 0.5-70% of soda. Concentration of sodium hydroxide in the water etching medium is 0.1-5 wt %, and surface erosion as a result of degreasing treatment with simultaneous etching stage is at least 0.25 g/m².

EFFECT: improvement of properties.

16 cl, 8 dwg, 3 tbl