Paper product comprising adhesively joined plies
AssigneeThe Procter & Gamble Company
InventorsCharles William Neal, George Vincent Wegele, Timothy Jude Lorenz
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Abstract
A multi-ply paper product wherein the plies are adhesively joined together. One or both of the plies may have embossments protruding towards and contacting the other ply. The plies are adhesively joined, preferably at such embossments. The adhesive is selected from a composition that advantageously provides a minimum wet ply bond strength and a dry ply bond strength which falls within a particularly desired range.
Claims15
A multi-ply cellulosic paper product having improved wet ply bond strength, said multi-ply paper product comprising at least two macroscopically monoplanar plies joined together in face-to-face relationship, said plies being joined to one another using an aqueous adhesive composition, said aqueous adhesive composition comprising a mixture of:
- (a) from about 2% to about 6% by weight of a water-soluble or water-dispersible dry strength binder material selected from the group consisting of polyvinyl alcohol, starch based resins and mixtures thereof;
- (b) from about 1% to about 9% by weight of a water-soluble cationic resin selected from the group consisting of polyamide-epichlorohydrin resins, glyoxalated polyacrylamide resins, polyethyleneimine resins, and mixtures thereof;
- and
- (c) from about 89% to about 95% by weight water,
- wherein the total solids content of said aqueous adhesive composition ranges from about 5% to about 11% by weight, said solids content being the combined weight percents of said water-soluble or dispersible dry strength binder material and said water-soluble cationic resin.
Dependencies are inferred from the claim text.