Abstract: A polyester-resin-coated seamless can including a reduced diameter portion obtained by neck processing within a distance of 0% to 15% from a can body uppermost portion with respect to a total height of the can from the can body uppermost portion to a can bottom of the can. A ratio Im/Iu is 1.0 or more, where Iu (cps/?m) is calculated by dividing a maximum peak intensity in a range satisfying 15°?2??19° of an outer-surface coating in a maximum reduced diameter portion of the reduced diameter portion by a thickness of the coating at the measurement site, and Im (cps/?m) is calculated by dividing a maximum peak intensity in a range satisfying 15°?2??19° of outer-surface coating at a measurement site within a distance of 45% to 60% from the can body uppermost portion by a thickness of the outer-surface coating at the measurement site.

Abstract: To provide a bath for surface treatment capable of forming a surface-treating film having excellent corrosion resistance by a high-speed electrolytic treatment, and a method of producing a surface-treated steel plate having excellent corrosion resistance and closely adhering property to the coating maintaining good productivity. A bath for surface treatment used for forming a surface-treating film on the surface of a steel plate by cathodic electrolysis, the bath for surface treatment containing Zr and/or Ti, and a polycarboxylic acid.

Abstract: A method of producing a surface-treated steel sheet is provided. The method has a step of performing electrolytic treatment thereby to form a layer including a metal-oxygen compound on a surface of a steel sheet. The electrolytic treatment is performed so that the steel sheet is continuously fed into electrolytic treatment baths each including a treatment liquid and an electrode. The treatment liquid contains metal ions.

Abstract: A surface treatment agent composition for non-chromium steel sheets for removing iron ions without reducing the amount of aluminum ions when subjecting the steel sheet to surface treatment by means of cathodic electrolysis using a surface treatment agent containing aluminum ions as the main component; and a method for producing a surface-treated steel sheet using the composition. A surface-treated steel sheet exhibiting high corrosion resistance, a surface-treated steel sheet with an organic coating, and a can lid, can body and seamless can produced using the surface-treated steel sheets. A surface treatment agent composition for steel sheets contains aluminum ions, fluorine ions and polycarboxylic acid and is used as the surface treatment bath used for forming a surface treatment coating film on the surface of the steel sheet by cathodic electrolysis.

Abstract: A seamless can including a resin-coated steel plate. The can is a draw-ironed steel can having a resin coating formed on at least the inner surface of the can, wherein the resin coating on the inner surface of the can has a tensile strength of 160 to 360 MPa. Also disclosed is a method of producing the draw-ironed steel can.

Abstract: To provide a bath for surface treatment capable of forming a surface-treating film having excellent corrosion resistance by a high-speed electrolytic treatment, and a method of producing a surface-treated steel plate having excellent corrosion resistance and closely adhering property to the coating maintaining good productivity. A bath for surface treatment used for forming a surface-treating film on the surface of a steel plate by cathodic electrolysis, the bath for surface treatment containing Zr and/or Ti, and a polycarboxylic acid.

Abstract: A surface-treated steel plate obtained by forming, on at least one surface of the steel plate by cathodic electrolysis, a surface-treating film which contains a mixed oxide of an oxide of Fe and at least one of an oxide of Zr or an oxide of Ti, and a polycarboxylic acid, the amount of Zr or Ti, or the total amount of Zr and Ti if both of them are present, being from 3 to 300 mg/m2 and the amount of C being from 0.1 to 5.0 mg/m2.

Abstract: [Problems] To provide an aluminum seamless can very excellent in stab resistance, corrosion resistance and productivity by using a resin-coated aluminum sheet. [Means for Solution] A draw-ironed aluminum can having a resin coating on at least the inner surface of the can, wherein the coating resin on the inner surface of the can has a tensile strength of 270 to 420 MPa.

Abstract: [Problems] To provide a resin-coated metal sheet that exhibits excellent trimming property at the time of being formed into a seamless can, and is capable of providing a seamless can that closely adheres to the printing ink and exhibits excellent abrasion resistance. [Means for Solution] A resin-coated metal sheet including a metal sheet and a layer of a polyester resin which chiefly comprises an ethylene terephthalate unit formed on at least one surface of the metal sheet, wherein the polyester resin is a blend of a lowly crystalline polyester resin and a highly crystalline polyester resin.

Abstract: [Problems] To provide a bath for surface treatment capable of forming a surface-treating film having excellent corrosion resistance by a high-speed electrolytic treatment, and a method of producing a surface-treated steel plate having excellent corrosion resistance and closely adhering property to the coating maintaining good productivity. [Means for Solution] A bath for surface treatment used for forming a surface-treating film on the surface of a steel plate by cathodic electrolysis, the bath for surface treatment containing Zr and/or Ti, and a polycarboxylic acid.

Abstract: [Problems] To provide an aluminum seamless can very excellent in stab resistance, corrosion resistance and productivity by using a resin-coated aluminum sheet. [Means for Solution] A draw-ironed aluminum can having a resin coating on at least the inner surface of the can, wherein the coating resin on the inner surface of the can has a tensile strength of 270 to 420 MPa.

Abstract: [Problem] To provide a seamless can comprising a resin-coated steel plate, and featuring very excellent corrosion resistance and productivity. [Means for Solution] A draw-ironed steel can having a resin coating formed on at least the inner surface of the can, wherein the resin coating on the inner surface of the can has a tensile strength of 160 to 360 MPa.

Abstract: [Problems] To provide a resin-coated metal sheet that exhibits excellent trimming property at the time of being formed into a seamless can, and is capable of providing a seamless can that closely adheres to the printing ink and exhibits excellent abrasion resistance. [Means for Solution] A resin-coated metal sheet including a metal sheet and a layer of a polyester resin which chiefly comprises an ethylene terephthalate unit formed on at least one surface of the metal sheet, wherein the polyester resin is a blend of a lowly crystalline polyester resin and a highly crystalline polyester resin.

Abstract: A can that features superior resistance against puncture under higher puncture strength, and superior resistance against flange cracking. The resin-coated aluminum seamless can body of the present invention features superior resistance against cracks in the can wall during distribution, and resistance against flange cracking, wherein the inner and/or outer surface of the can of the aluminum seamless can 10 is coated with a layer of thermo-plastic resin, the thickness of the thermoplastic resin layers of the inner surface and the outer surface is a total of 2-50 ?m, with a minimum thickness of the aluminum plate of the side wall of the can 0.

Abstract: The object of the present invention is to offer a can that features superior resistance against puncture under higher puncture strength, and superior resistance against flange cracking. The resin-coated aluminum seamless can body of the present invention features superior resistance against cracks in the can wall during distribution, and resistance against flange cracking, wherein the inner and/or outer surface of the can of the aluminum seamless can 10 is coated with a layer of thermo-plastic resin, the thickness of the thermoplastic resin layers of the inner surface and the outer surface is a total of 2-50 m, with a minimum thickness of the aluminum plate of the side wall of the can 0.