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AssigneeFort James Corporation
InventorsDinesh M. Bhat, Robert J. Marinack, Henry S. Ostrowski, Scott D. Moesch
Estimating the term…
A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or use in a manually pre-moistened condition. The paper product has temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 25 g/1" strip, preferably 35 g/1" strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet tensile strength of less than about 2/3 the initial value as measured 30 minutes after immersion. A temporary wet strength agent comprising aldehydic units in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the furnish. A cationic nitrogenous softener/debonder is preferably added to the furnish, in an amount of from about 1 pound per ton to about 6 pounds per ton. The CD dry tensile strength of the paper product is from at least about 133 g/1" up to about 267 g/1", and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.10. Preferably, the wet strength of the product decays with sufficient speed that the CD wet tensile strength drops to about 15 g/1" strip within 10 hours after immersion. When rubbed against a skin-like surface in a moistened condition, the paper product remains substantially free of pilling.
A dispersible tissue product having a glabrous surface and being adapted both for use in a dry condition and for use in a premoistened condition, said tissue having temporary wet strength and comprising a water soluble temporary wet strength agent comprising aldehydic units and cationic units, the amount of said water soluble temporary wet strength agent comprising aldehydic units being sufficient to produce an initial normalized CD wet tensile strength of at least about 25 g/1" strip 5 seconds after wetting as measured by the Finch Cup method;
A biodegradable tissue product comprising a cellulosic web dewatered by substantially uniform compaction applied to the web by contact with a dewatering felt and passage through a nip including a suction pressure roll and being adapted both for use in a dry condition as well as premoistened shortly before use, said tissue having temporary wet strength, said tissue comprising a water soluble cationic temporary wet strength agent, the amount of said water soluble cationic temporary wet strength agent being sufficient to produce an initial normalized CD wet tensile strength of at least about 25 g/1" strip 5 seconds after immersion as measured by the Finch Cup method and a subsequent CD wet tensile of less than about 2/3 of the initial CD wet tensile as measured 30 minutes after immersion, said paper product in a moistened condition exhibiting a Wet Abrasion Resistance Number of at least about 4.
A temporary wet strength tissue paper product having a glabrous surface, said temporary wet strength tissue paper product comprising from approximately 20% to approximately 80% hardwood fiber by weight, from approximately 80% to 20% softwood fiber by weight, from about 2 pounds per ton to about 30 pounds per ton of a water-soluble temporary wet strength resin having aldehydic moieties on a cationic polymeric base and from about 1 pound per ton to about 10 pounds per ton of a cationic nitrogenous softener/debonder chosen from the group consisting of imidazolines, amido amine salts, linear amido amines, tetravalent ammonium salts and mixtures thereof, wherein the amounts of temporary wet strength resin and nitrogenous cationic softener/debonder are selected to yield an initial normalized CD wet tensile strength of greater than 25 g/1" with a normalized dry tensile strength of from at least about 133 g/1" strip of paper product up to about 267 g/1" strip, and a dry tensile modulus of from about 15.5 to about 45.5 g/% strain and 30 minutes after immersion exhibits an intermediate normalized CD wet tensile strength of less than 2/3 the initial value, said paper product in a moistened condition possessing substantial resistance to pilling and shredding when rubbed against pigskin.
A temporary wet strength tissue paper product comprising a cellulosic web having a glabrous surface, said web comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A temporary wet strength tissue paper product having a glabrous surface comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A temporary wet strength tissue paper product having a glabrous surface comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A flushable, temporary wet strength tissue paper product having a glabrous surface, said paper product comprising a cellulosic web dewatered by overall pressing comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A method of forming a tissue paper product having a glabrous surface and being adapted for use in a dry condition and for use in a manually moistened condition comprising:
A method of forming a tissue paper product having a glabrous surface and being adapted for use in a dry condition and for use in a manually premoistened condition comprising:
A method of forming a tissue paper product adapted for use in a dry condition and for use in a manually moistened condition comprising:
A flushable, dispersible two-ply tissue paper product, comprising two plies embossed together, each ply having a glabrous surface and being adapted both for use in a dry condition and for use in a premoistened condition, each ply of said tissue product having temporary wet strength, comprising a water soluble organic polymer or monomer having aldehydic units and cationic units, the amount of said water soluble organic polymer or monomer being sufficient to produce a ply having:
A flushable, biodegradable tissue product comprising a cellulosic web dewatered by substantially uniform compaction applied to the entire area of the web and being adapted both for use in a dry condition as well as premoistened shortly before use, said tissue having temporary wet strength, said tissue comprising a water soluble organic polymer or monomer comprising aldehydic units and cationic units, and a cationic nitrogenous softener/debonder, the amounts of said water soluble organic polymer or monomer and said cationic nitrogenous softener/debonder being sufficient to produce an initial normalized CD wet tensile strength of at least about 25 g/1" strip 5 seconds after immersion as measured by the Finch Cup method and an ultimate normalized CD wet tensile of about 15 g/1" strip as measured 10 hours after immersion, said paper product in a moistened condition exhibiting a Wet Abrasion Resistance Number of at least about 4.
A temporary wet strength tissue paper product having a glabrous surface, said temporary wet strength tissue paper product comprising from approximately 20% to approximately 80% hardwood fiber by weight, from approximately 80% to 20% softwood fiber by weight, from about 2 pounds per ton to about 30 pounds per ton of a water-soluble temporary wet strength resin having aldehydic moieties on a cationic polymeric base and from about 1 pound per ton to about 10 pounds per ton of a cationic nitrogenous softener/debonder chosen from the group consisting of imidazolines, amido amine salts, linear amido amines, tetravalent ammonium salts and mixtures thereof, wherein the amounts of temporary wet strength resin and nitrogenous cationic softener/debonder are selected to yield an initial normalized CD wet tensile strength of greater than 35 g/1" with a normalized CD dry tensile strength of from at least about 133 g/1" strip of paper product up to about 267 g/1" strip, and a normalized dry tensile modulus of from about 15.5 to about 45.5 g/% strain and, as measured 30 minutes after immersion, an intermediate normalized CD wet tensile strength of less than 2/3 the initial value, said tissue paper product in a moistened condition possessing substantial resistance to pilling and shredding when rubbed against pigskin.
A tissue paper product having a glabrous surface and temporary wet strength, which when moistened, exhibits a resistance to pilling when rubbed such that when 4 sheets 2" by 4.5" are saturated, restrained laterally, then rubbed against wet pig-skin under a load of 135 grams within about 2 minutes after immersion, the moistened tissue paper product and pig-skin remain substantially free of pilling and shredding after 4 rubs, said tissue paper product exhibiting an ultimate normalized CD wet tensile of about 15 g/in as measured by the Finch Cup Test 10 hours after immersion in water.
A flushable, dispersible biodegradable tissue paper product comprising a wet pressed web comprising a cationic water soluble temporary wet strength resin, said tissue web having a glabrous surface and temporary wet strength, said tissue web when moistened, exhibiting a resistance to pilling when rubbed such that when 4 sheets 2" by 4.5" are saturated, restrained laterally, then rubbed against wet pig-skin under a load of 135 grams within about 2 minutes after immersion, the moistened tissue paper product and pig-skin both remain substantially free of pilling and shredding after 4 rubs.
A temporary wet strength tissue paper product having a glabrous surface, said tissue paper product comprising a cellulosic web dewatered by substantially uniform overall compaction, said cellulosic web comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A temporary wet strength tissue paper product comprising a cellulosic web having a glabrous surface, said web comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A temporary wet strength tissue paper product having a glabrous surface comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A temporary wet strength tissue paper product having a glabrous surface, said tissue paper product comprising from about 20% to about 80% hardwood fiber by weight, from about 80% to about 20% softwood fiber by weight;
A method of forming a tissue paper product having a glabrous surface and being adapted for use in a dry condition and for use in a manually moistened condition comprising:
A method of forming a tissue paper product having a glabrous surface and being adapted for use in a dry condition and for use in a manually premoistened condition comprising:
A method of forming a tissue paper product having a glabrous surface and being adapted for use in a dry condition and for use in a manually moistened condition comprising:
Dependencies are inferred from the claim text.