Articles comprising water-soluble polyvinyl alcohol blend film and related methods

An article comprising:

• a. a water-soluble film comprising:
• a polyvinyl alcohol (PVOH) resin blend comprising:
• from about 10 wt. % to about 75 wt. % of the polyvinyl alcohol (PVOH) resin blend of a first PVOH terpolymer comprising a first anionic monomer unit, wherein the first anionic monomer is selected from the group consisting of acrylamido methylpropanesulfonic acids, alkali metal salts thereof, and combinations thereof, and wherein the first PVOH terpolymer comprises monomer units of vinyl alcohol, vinyl acetate and acrylamido methylpropanesulfonic acid or alkali metal salt thereof;
• and
• from about 25 wt. % to about 90 wt. % of the polyvinyl alcohol (PVOH) resin blend of a second PVOH terpolymer comprising a second anionic monomer unit, wherein the second anionic monomer is selected from the group consisting of monomethyl maleate, alkali metal salts thereof, and combinations thereof, and wherein the second PVOH terpolymer comprises monomer units of vinyl alcohol, vinyl acetate and monomethyl maleate or alkali metal salt thereof;
• wherein the water-soluble film has the following properties
• (a) the water-soluble film has a residue value of from about 12 wt. % to about 48 wt. %, as measured by the Dissolution Chamber Test;
• (b) the water-soluble film has an average tensile strength value of at least about 33 MPa as measured by the Tensile Strength Test;
• and
• (c) the water-soluble film has a modulus value of at least about 12 N/mm2 as measured by the Modulus Test;
• and
• b. a household care composition proximal to the film.