Soluble laundry detergent sheets with acrylamide polymers

A method for manufacturing a water-soluble laundry detergent sheet, the method comprising:

• providing a liquid composition comprising:
• at least one acrylamide polymer present in an amount of from 0.1 to 20 wt. %, based on the total weight of the liquid composition;
• at least one surfactant that is different from the at least one acrylamide polymer;
• at least one water-soluble polymer that is different from the at least one acrylamide polymer;
• and
• at least one washing booster that is different from the at least one acrylamide polymer;
• moving at least a portion of a heated surface in a first direction relative to the liquid composition to form a layer of the liquid composition on the heated surface;
• draining any excess amount of the liquid composition from the heated surface in a second direction that is opposite to the first direction;
• drying the layer at a temperature of from 70° C. to 90° C. for a time period of from 1 second to 60 seconds to obtain a laundry detergent sheet;
• cutting the laundry detergent sheet into one or more pieces of a predetermined shape and size suitable for use as a unit dose;
• and
• packaging the one or more laundry detergent sheet pieces, wherein:
• the at least one acrylamide polymer is selected from the group consisting of 2-propionic acid polymer with 2-propenamide, minimum number average molecular weight (in amu) 18,000 or N,N-dimethyl-N-2-propenyl-2-propene-1-aminium chloride (dimethyl diallyl ammonium chloride), 2-propenamide polymer with N,N,N-trimethyl-3-[(1-oxo-2-propenyl) amino]-1-propanaminium chloride ((3-acrylamidopropyl)trimethylammonium chloride), and a polymer with sodium 2-propenoate, and
• the laundry detergent sheet has a mass per unit area of from 40 to 200 g/m2, determined according to ISO 9073-1.