A water-soluble unit dose article comprising at least one sealed compartment comprising at least one household care composition, the water-soluble unit dose article comprising a first water soluble film wherein the first water soluble film comprises a first anionic content; and a second water soluble film wherein the second water soluble film comprises a second anionic content; wherein the first anionic content is greater than the second anionic content; wherein the first film is sealed to the second film to form the at least one sealed compartment; wherein the anionic monomer units are selected from the group consisting of anionic monomers derived from vinyl acetic acid, maleic acid, monoalkyl maleate, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, monoalkyl fumarate, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, citraconic acid, monoalkyl citraconate, dialkyl citraconate, citraconic anhydride, mesaconic acid, monoalkyl mesaconate, dialkyl mesaconate, mesaconic anhydride, glutaconic acid, monoalkyl glutaconate, dialkyl glutaconate, glutaconic anhydride, vinyl sulfonic acid, alkyl sulfonic acid, ethylene sulfonic acid, 2-acrylamido-1-methyl propane sulfonic acid, 2-acrylamide-2-methylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, alkali metal salts thereof, esters thereof, and combinations thereof; wherein the first water-soluble film is chemically different from the second water soluble film with respect to the anionic content of the films, and wherein the first water soluble film comprises a first water soluble resin and the second water soluble film comprises a second water soluble resin and the first water soluble resin is chemically different from the second water soluble resin; and wherein the first water soluble resin comprises a first blend of at least one polyvinyl alcohol copolymer comprising an anionic monomer unit(s) and at least one polyvinyl alcohol homopolymer, the second water soluble resin comprises a second blend of at least one polyvinyl alcohol copolymer comprising an anionic monomer unit(s) and at least one polyvinyl alcohol homopolymer, and the first blend is chemically different from the second blend wherein the difference between the first anionic content and the second anionic content is 0.05 mol% to 4 mol%, preferably 0.1 mol% to 2 mol%, more preferably 0.2 mol% to 1 mol%, wherein by "anionic content" it is meant the anionic monomer units present in the PVOH polymer of the film compared to the total amount of PVOH polymer in the film a first water soluble film wherein the first water soluble film comprises a first anionic content; and a second water soluble film wherein the second water soluble film comprises a second anionic content; wherein the first anionic content is greater than the second anionic content; wherein the first film is sealed to the second film to form the at least one sealed compartment; wherein the anionic monomer units are selected from the group consisting of anionic monomers derived from vinyl acetic acid, maleic acid, monoalkyl maleate, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, monoalkyl fumarate, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, citraconic acid, monoalkyl citraconate, dialkyl citraconate, citraconic anhydride, mesaconic acid, monoalkyl mesaconate, dialkyl mesaconate, mesaconic anhydride, glutaconic acid, monoalkyl glutaconate, dialkyl glutaconate, glutaconic anhydride, vinyl sulfonic acid, alkyl sulfonic acid, ethylene sulfonic acid, 2-acrylamido-1-methyl propane sulfonic acid, 2-acrylamide-2-methylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, alkali metal salts thereof, esters thereof, and combinations thereof; wherein the first water-soluble film is chemically different from the second water soluble film with respect to the anionic content of the films, and wherein the first water soluble film comprises a first water soluble resin and the second water soluble film comprises a second water soluble resin and the first water soluble resin is chemically different from the second water soluble resin; and wherein the first water soluble resin comprises a first blend of at least one polyvinyl alcohol copolymer comprising an anionic monomer unit(s) and at least one polyvinyl alcohol homopolymer, the second water soluble resin comprises a second blend of at least one polyvinyl alcohol copolymer comprising an anionic monomer unit(s) and at least one polyvinyl alcohol homopolymer, and the first blend is chemically different from the second blend wherein the difference between the first anionic content and the second anionic content is 0.05 mol% to 4 mol%, preferably 0.1 mol% to 2 mol%, more preferably 0.2 mol% to 1 mol%, wherein by "anionic content" it is meant the anionic monomer units present in the PVOH polymer of the film compared to the total amount of PVOH polymer in the film