Method for preparing laminated precursor rolls

A method comprising, in order:

• A) independently providing one or more different non-woven fabrics, each non-woven fabric having a face side and a back side;
• B) applying an aqueous foamed opacifying composition to the back side of the one or more different non-woven fabrics, the wet coverage of the applied aqueous foamed opacifying composition being the same or different on each of the one or more different non-woven fabrics;
• C) drying each applied aqueous foamed opacifying composition to provide a dry coverage of less than or equal to 1000 g/m2 of a dry foamed opacifying layer having a light blocking value (LBVoc) of at least 2;
• D) optionally, either between the B) applying step and the C) drying step, or immediately after the C) drying step, applying an anti-blocking composition formulation to each applied aqueous foamed opacifying composition to form one or more laminate precursors having an anti-blocking composition back side and a non-woven fabric face side, the one or more laminate precursors comprising one or more different non-woven fabrics on its face side and the same or different dry coverage of applied aqueous foamed opacifying composition on the anti-blocking composition back side;
• E) simultaneously with or subsequent to the optional D) applying step, densifying the dry foamed opacifying layer so that it will have a thickness that is at least 20% less than its thickness before densifying;
• F) rolling up each of the one or more laminate precursors, to provide one or more laminate precursor rolls,
• wherein the aqueous foamed opacifying composition has at least 35% and up to and including 70% solids and a foam density of at least 0.1 g/cm3 and up to and including 0.5 g/cm3, and comprises:
• (a) porous particles in an amount of at least 0.05 weight % and up to and including 20 weight %, each porous particle comprising a continuous polymeric phase and discrete pores dispersed within the continuous polymeric phase, the porous particles having a mode particle size of at least 2 μm and up to and including 50 μm and a porosity of at least 20 volume % and up to and including 70 volume %;
• (b) a binder material in an amount of at least 15 weight % and up to and including 70 weight %,
• (c) two or more additives in an amount of at least 0.0001 weight % and up to and including 30 weight %, the two or more additives comprising at least one foaming surfactant and at least one foam stabilizer,
• (d) an aqueous medium, and
• (e) an opacifying colorant in an amount of at least 0.0001 weight % and up to and including 0.5 weight %, which opacifying colorant being different materials from the (a) porous particles, (b) binder material, and (c) two or more additives, and which opacifying colorant absorbs electromagnetic radiation having a wavelength of at least 380 nm and up to and including 800 nm,
• all amounts of (a) porous particles, (b) binder material, (c) two or more additives, and (e) opacifying colorant being based on the total weight of the aqueous foamed opacifying composition.