The purpose of the present invention is to provide a method for manufacturing a painted metal plate which is resistant to surface stain due to rain streaks. The painted metal plate manufacturing method comprises: a step of forming a coating film on a surface of a metal plate, the coating film having an arithmetic mean roughness Ra of 0.3 to 3.0 m as calculated according to JIS B0601:2013, and a surface Si atomic concentration of less than 1.0 atm % as measured by X-ray electron spectroscopy using an AlK beam as an X-ray source; and a step of subjecting the coating film to flame processing at 30 to 1000 kJ/m.sup.2.

This disclosure describes substrate(s) having a three-dimensional (3D) feature formed thereon and methods of forming the features. One method involves applying a first layer of UV-curable material on a surface of the glass container around a circumference of the container and curing the first layer of UV-curable material to produce a first cured material layer that forms at least a portion of a first 3D feature. The method further comprises applying a second layer of UV-curable material on the surface of the glass container, spaced apart from the first 3D feature, around the circumference of the container, and curing the second layer of UV-curable material to produce a second cured material layer that forms at least a portion of a second 3D feature. The portion of the glass container between the first and second 3D features has a circumference less than that of the first or second 3D features.

A method for producing an intermediate material for a cooking device according to an embodiment of the present invention comprises the steps of: repeating a cycle of applying a dispersion of a fluororesin and an inorganic filler or a dispersion of a fluororesin alone to a supporter and firing the applied dispersion so as to form a multilayered fluororesin film, followed by exfoliating the multilayered fluororesin film from the supporter to acquire the multilayered fluororesin film beforehand; providing the pre-acquired fluororesin film on a metal-substrate; and thermally compressing the fluororesin film and the metal substrate. In addition, an organic compound-containing primer or adhesive is not used in the thermocompression step.

A method for producing an intermediate material for a cooking device according to an embodiment of the present invention comprises the steps of: repeating a cycle of applying a dispersion of a fluororesin and an inorganic filler or a dispersion of a fluororesin alone to a supporter and firing the applied dispersion so as to form a multilayered fluororesin film, followed by exfoliating the multilayered fluororesin film from the supporter to acquire the multilayered fluororesin film beforehand; providing the pre-acquired fluororesin film on a metal-substrate; and thermally compressing the fluororesin film and the metal substrate. In addition, an organic compound-containing primer or adhesive is not used in the thermocompression step.

The method for flame spraying thermoplastic powders provides to heat the article to be coated at a suitable working temperature and to feed the said thermoplastic powders, transported by an inert gas, a flow of compressed air and a flow of liquefied petroleum gas through respective separated discharge chambers (7, 9, 12), shaped inside a mixing device (1) of a spray gun. The thermoplastic powders are then projected, in a resulting flow (30), on the heated surface of the article to be coated, to determine the melting of the same powders at their contact with said heated surface. At least one couple of flows (31, 32) of compressed air is sprayed converging towards the resulting flow (30) flowing out of the mixing device (1), giving the resulting flow (30) a substantially flattened fan shape.

The method for flame spraying thermoplastic powders provides to heat the article to be coated at a suitable working temperature and to feed the said thermoplastic powders, transported by an inert gas, a flow of compressed air and a flow of liquefied petroleum gas through respective separated discharge chambers (7, 9, 12), shaped inside a mixing device (1) of a spray gun. The thermoplastic powders are then projected, in a resulting flow (30), on the heated surface of the article to be coated, to determine the melting of the same powders at their contact with said heated surface. At least one couple of flows (31, 32) of compressed air is sprayed converging towards the resulting flow (30) flowing out of the mixing device (1), giving the resulting flow (30) a substantially flattened fan shape.

The present invention addresses the problem of providing a painted metal plate having rain-streak-stain resistance and a good appearance, and a method for producing the same. To solve this problem, the method for producing a painted metal plate includes a step for forming a coating by applying a paint containing a silicone resin and a fluorine-containing resin to the surface of a metal plate and curing the paint, and a step for performing flame treatment on the coating. The silicone resin contains 5 to 50 mol % of a silanol group with respect to the total molar mass of Si atoms.

The present invention addresses the problem of providing a painted metal plate having rain-streak-stain resistance and a good appearance, and a method for producing the same. To solve this problem, the method for producing a painted metal plate includes a step for forming a coating by applying a paint containing a silicone resin and a fluorine-containing resin to the surface of a metal plate and curing the paint, and a step for performing flame treatment on the coating. The silicone resin contains 5 to 50 mol % of a silanol group with respect to the total molar mass of Si atoms.

A method for coating a surface of an electrically non-conductive substrate with powder coatings, the method comprising the following steps: providing a substrate to be coated, pre-heating the substrate to be coated to a temperature of 40 to 140 C. in order to decrease the surface resistance of the substrate to less than 10.sup.12 ohms, preferably to within the range of 10.sup.10 to less than 10.sup.12 ohms, electrostatically coating the surface with powder coating in a single layer, which powder coating comprises a reactive system which, in particular, cures into a thermoset, curing the powder coating layer at a temperature of 170 C. or less.

The present invention provides a method for manufacturing a decorative construction plate, the method including subjecting a metal siding material including: a metallic substrate on which a recess-projection pattern having a height difference of 0.5 mm or more is formed and on which an ink receiving layer formed from a resin composition is provided; a core material; and a back-side material, to flame treatment by exposing the metal siding material to flame with an output of 250 kJ/h to 12000 kJ/h per 10-mm width of a flame port of a burner so that the surface temperature of the substrate does not exceed 300? C., followed by performing inkjet printing using an active ray curable ink.