Sheet-like article
AssigneeLever Brothers Company
InventorsZia Haq, Richard Harbour, Donald Peter, Serge A. Symien
Life of this patent
Estimating the term…
Abstract
A sheet-like article suitable, for example, for wiping hard surfaces, comprises two sheets of nonwoven fabric or the like having sandwiched betweem them a solid core material which may be a highly porous, optionally liquid-containing, polymer. The two outer sheets are bonded to each other, without involving the core material, by means of a plurality of small, spaced bonding points, for example, spot-welds. Preferably the core material is in continuous sheet form and is perforated to accommodate the bonding points.
Claims10
A flexible sheet-like article comprising first and second sheet substrates, at least one of which is liquid-permeable, having sandwiched between them an intermediate layer in continuous sheet form of solid core material selected from the group consisting of absorbent and active material, the first and second substrates being bonded to one another through a plurality of relatively small perforations, which perforations penetrate said intermediate layer solid core material yet without said bonding involving the intermediate layer, at a plurality of locations of relatively small area distributed relatively uniformly over the area of the article, said relatively small perforations and relatively small areas having a total area not exceeding that of the solid surface areas therebetween, and the distance between adjacent bonding locations being substantially greater than the dimensions of the bonding locations themselves.
Dependencies are inferred from the claim text.