Abstract: An object of the present invention is to provide a process of anodizing a long-length aluminum plate, which reduces loss of electricity. Also disclosed is an anodization process of the above plate, employing an anodization apparatus possessing an electrolyte tank, an anode, a cathode and an electric insulator with an opening forming a current flow section, the process possessing the steps of providing the plate between the cathode and the electric insulator; and anodizing the plate by supplying current between the anode and the long-length aluminum plate, wherein the opening is located at a position of at most 10% in width length from an outer side of the plate with respect to the width length of the plate, a part of the plate is brought into contact with a part of the electric insulator, and the plate and the electric insulator travel in uniform speed.

Abstract: Disclosed is an aluminum support for a light sensitive planographic printing plate material, the aluminum support having an average surface roughness (Ra) of 0.40 to 0.65 ?m, and Mr1 of 3.0 to 6.0%, and an Mr1 of 80 to 86%, the Mr1 and Mr2 being measured according to JIS B0671-2 (ISO 13565-1998), wherein the support is obtained by a process comprising the steps of electrolytically surface-roughening an aluminum plate in an electrolyte solution containing hydrochloric acid, and then anodizing the surface-roughened aluminum plate.

Abstract: Disclosed is an anodization process of a long-length aluminum plate, employing an anodization apparatus comprising an electrolyte tank charged with an electrolytic solution, and provided in the electrolytic solution, an anode, a cathode and an electric insulator with an opening which forms a current flow section, the electric insulator being provided between the anode and the cathode, the process comprising the steps of providing a long-length aluminum plate between the cathode and the electric insulator in the electrolytic solution, and anodizing the long-length aluminum plate by supplying current between the anode and the long-length aluminum plate through the current flow section, whereby an anodization layer is formed on the aluminum plate surface on the side facing the cathode, wherein 5(%)?S(%)?30(%) and 0.2?T(mm)?6×S?0.

Abstract: Disclosed is an aluminum support for a planographic printing plate comprising an electrolytically surface-roughened aluminum plate, and a sulfuric acid anodization layer and a phosphoric acid anodization layer provided in that order on the surface-roughened surface of the surface-roughened aluminum plate, the sulfuric acid anodization layer having micro-pores with a pore size of from 8 to 15 nm and the phosphoric acid anodization layer having micro-pores with a pore size of from 40 to 100 nm, wherein the sulfuric acid anodization layer has been formed by anodizing the aluminum plate in a sulfuric acid electrolytic solution and the phosphoric acid anodization layer has been formed by anodizing the aluminum plate in a phosphoric acid electrolytic solution.

Abstract: A resin composition comprising;100 parts by weight of a mixture comprising (a) from 5 to 95% by weight of polyamide and (b) from 95 to 5% by weight of a thermoplastic polyester; and(c) from 0.5 part to 40 parts by weight of a grafted polyolefin modified product formed by graft polymerization of an addition polymer having a peroxy bond in its molecular chain to a modified polyolefin having a functional group in its molecular chain; and a molded product thereof.