Patent ID: 8383743

Claim:
A siding for outer wall, comprising a base material for siding, and an undercoating layer, a jet ink coating layer and a surface protective layer laminated in this order on the base material for siding, wherein the jet ink coating layer includes a pattern which is formed from an ink composition for a jet printer, wherein the ink composition comprises a pigment, a film forming resin and an organic solvent, the film forming resin is an acrylic copolymer which contains, as a monomer unit, at least one of compounds represented by the general formulas (1) and (2): wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents an alkylene group having 2 to 12 carbon atoms which may be linear or branched; and R 3 and R 4 each independently represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group, and the sum of the number of carbon atoms of R 3 and R 4 is from 4 to 12, or R 3 and R 4 form a saturated or unsaturated hydrocarbon group which is a five-membered ring formed by combination of the R 3 and R 4 ; wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents an alkylene group having 2 to 12 carbon atoms which may be linear or branched; and X represents a group selected from the group consisting of groups represented by the general formulas (3) to (6), (8) and (9); and wherein R 5 , R 6 , R 7 and R 8 represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms: and the total amount of the compound represented by the general formula (1) and the compound represented by the general formula (2) is 10 to 50% by mass based on the entire monomer units of the acrylic copolymer included in the ink composition.