Patterned dry laid fibrous web products of enhanced absorbency

Abstract From the Canadian patent

A method of improving absorbency of air laid bonded fibrous webs and the products resulting therefrom the preferred method, comprising the step of imprinting at least one surface of the fibrous web between a pair of cylindrical rolls under a pressure of at least 100 pounds/lineal inch, the compacted area of each imprinted web surface being at least 40% preferably at least 50%, of the total imprinted surface. In the preferred embodiment of the method, the fibrous web is first wetted with water the imprinting, step then being conducted with imprinting means heated to about 140 to about 180°C. The products obtained have densified zones underlying the compacted areas, the density thereof being …