Method of improving adhesion of secondary backings on carpets

The method which comprises coating the backing of a carpet comprising a plurality of fibers or tufts woven with a first fibrous backing with an aqueous curable adhesive composition and then applying with pressure a second fibrous backing material to said adhesive coated first fibrous backing to form a laminate, said adhesive being present in an amount sufficient to secure the ends of said fibers or tufts to said first backing material and to secure said second backing material to said first backing material, said second backing material at the time of application to said adhesive coated first backing material first having been treated with fluid H.sub.2 O at a temperature and for a time sufficient to wet said secondary backing, to relax the fibers of said secondary backing, to increase the amount of fibers protruding from the cords or strands of the secondary backing and to improve the penetration of said adhesive into said secondary backing, and then heating the resulting laminate at a temperature and for a time sufficient to dry said adhesive and said secondary backing and to cure said adhesive to bind the ends of the fibers or tufts of said carpet to said primary backing and said primary backing to said secondary backing together into a unitary laminate without adversely affecting the fibers or tufts of said carpet.