Abstract: A UV-light-sensitive sheet for graphic applications comprises an aluminum sheet or foil bearing an oxide film which is produced by anodizing and is colored but not yet sealed, an intermediate layer, and a layer of UV-light-sensitive plastic. The intermediate layer is formed from a solution containing at least one copolymer which is soluble in polar solvents and is made up of a monomer of the following group:(A) unsaturated ethers, unsaturated alcohols, unsaturated amines, unsaturated ketones, styreneand a monomer of the group(B) unsaturated carboxylic acids, carboxylic acid salts unsaturated carboxylic acid derivatives which can be hydrolyzed.The intermediate layer is formed on the colored, non-sealed oxide layer, dried and then a UV-light-sensitive layer of plastic is deposited on top of the intermediate layer.

Abstract: A UV-light-sensitive sheet for graphic applications comprises an aluminum sheet or foil bearing an oxide film which is produced by anodizing and is colored but not yet sealed, an intermediate layer, and a layer of UV-light-sensitive plastic. The intermediate layer is formed from a solution containing at least one copolymer which is soluble in polar solvents and is made up of a monomer of the following group:(A) unsaturated ethersunsaturated alcoholsunsaturated aminesunsaturated ketonesstyreneand a monomer of group(B) unsaturated carboxylic acids or carboxylic acid salts unsaturated carboxylic acid derivatives which can be hydrolized.The intermediate layer is formed on the colored, non-sealed oxide layer, dried and then a UV-light-sensitive layer of plastic is deposited on top of the intermediate layer.

Abstract: Continuous process for anodizing and subsequent electrolytic coloring of an aluminium strip or foil with A.C. in which the strip after leaving the anodistaion unit passes through an aqueous acidic contacting electrolyte, e.g. dilute sulfuric acid, and then through the aqueous acidic coloring electrolyte containing metal ions and in which the A.C. source is connected to inert electrodes dipping in the contacting and in the coloring electrolyte respectively.