A paper product with absorbency and moisture strike through resistance is disclosed. More particularly, a multi-ply paper product with improved strike through resistance is disclosed, wherein at least one ply is a wetting resistant ply comprising at least one wetting resistant compound and at least
A paper product with absorbency and moisture strike through resistance is disclosed. More particularly, a multi-ply paper product with improved strike through resistance is disclosed, wherein at least one ply is a wetting resistant ply comprising at least one wetting resistant compound and at least one ply is an absorbent ply possessing greater absorbency than the wetting resistant ply. In addition, a two-ply paper napkin with improved moisture strike through resistance is disclosed, wherein the wetting resistant ply comprises alkyl ketene dimer and the two plies are separately microembossed, glue laminated together in a point to point configuration, and macroembossed with coin edging. Furthermore, a multi-ply paper product with improved strike through resistance is disclosed, wherein a first ply comprises at least one wetting resistant compound and a second ply possesses greater absorbency than the first ply. Methods of making paper products with absorbency and moisture strike through resistance are also described.
대표청구항▼
What is claimed is: 1. A multi-ply paper product comprising: at least one hydrophobic fibrous ply comprising at least one hydrophobe; and, at least one absorbent fibrous ply having an absorbency greater than the at least one hydrophobic ply, wherein the at least one hydrophobic ply exhibits an init
What is claimed is: 1. A multi-ply paper product comprising: at least one hydrophobic fibrous ply comprising at least one hydrophobe; and, at least one absorbent fibrous ply having an absorbency greater than the at least one hydrophobic ply, wherein the at least one hydrophobic ply exhibits an initial contact angle of at least about 80° with water, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply bears a microemboss pattern, and wherein the at least one hydrophobic ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration; and wherein the multi-ply paper product is a napkin, towel, or tissue. 2. The multi-ply paper product of claim 1, wherein the at least one hydrophobe is chosen from at least one of alkenyl ketene dimer, alkyl ketene dimer, fluorocarbons, alkenyl succinic anhydride, HMAP, ethylene-acrylic acid, and neutral rosin emulsions. 3. The multi-ply paper product of claim 2, wherein the at least one hydrophobe is alkyl ketene dimer. 4. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply further comprises at least one oleophobe. 5. The multi-ply paper product of claim 4, wherein the at least one oleophobe is a fluorochemical. 6. The multi-ply paper product of claim 5, wherein the fluorochemical is chosen from at least one of perfluorinated polyacrylates; perfluorinated polyurethanes; linear perfluoropolyethers; molecules possessing single or twin perfluorinated chains, including those in the form of carboxylate and phosphate salts, including amphoteric and ammonium salt derivatives; a perfluoroalkyl chain or chains attached to a polar functional group; polytetrafluoroethylene; and perfluoroalkyl substituted carboxylic acids. 7. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply further comprises at least one retention aid. 8. The multi-ply paper product of claim 7, wherein the at least one retention aid is a cationic coagulant. 9. The multi-ply paper product of claim 1, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply further comprise at least one wet strength additive. 10. The multi-ply paper product of claim 9, wherein the at least one wet strength additive is chosen from aliphatic and aromatic aldehydes, urea-formaldehyde resins, melamine formaldehyde resins, polyamide-epichlorohydrin resins, and temporary wet strength agents. 11. The multi-ply paper product of claim 10, wherein the at least one wet strength additive is a polyamide-epichlorohydrin resin. 12. The multi-ply paper product of claim 1, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply further comprise at least one dry strength additive. 13. The multi-ply paper product of claim 12, wherein the at least one dry strength additive is chosen from starch, guar gum, polyacrylamides, and carboxymethyl cellulose. 14. The multi-ply paper product of claim 1, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply further comprise at least one softener/debonder. 15. The multi-ply paper product of claim 1, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply further comprise at least one particulate filler. 16. The multi-ply paper product of claim 1, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply further comprise at least one additive chosen from sizing agents, absorbency aids, opacifiers, brighteners, optical whiteners, dyes, colorants, and starches. 17. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply exhibits an initial contact angle of at least about 90° with water. 18. The multi-ply paper product of claim 17, wherein the at least one hydrophobic ply exhibits an initial contact angle of at least about 100° with water. 19. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply exhibits a contact angle of at least about 80° after five minutes of contact with water. 20. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply possesses a water absorption rate of at least about 50 seconds. 21. The multi-ply paper product of claim 20, wherein the at least one hydrophobic ply possesses a water absorption rate of at least about 100 seconds. 22. The multi-ply paper product of claim 21, wherein the at least one hydrophobic ply possesses a water absorption rate of at least about 200 seconds. 23. The multi-ply paper product of claim 1, wherein the at least one absorbent ply possesses a water absorption rate less than the water absorption rate of the at least one hydrophobic ply. 24. The multi-ply paper product of claim 1, wherein the product exhibits strike through resistance. 25. The multi-ply paper product of claim 1, wherein the product is macroembossed. 26. The multi-ply paper product of claim 1, wherein the product is a napkin. 27. The multi-ply paper product of claim 1, wherein the product is a towel. 28. The multi-ply paper product of claim 1, wherein the product is a tissue. 29. The multi-ply paper product of claim 1, wherein the at least one hydrophobic ply bears a microemboss pattern, and wherein the at least one hydrophobic ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-flat configuration. 30. The multi-ply paper product of claim 1, wherein the at least one absorbent ply bears a microemboss pattern, and wherein the at least one absorbent ply and the at least one hydrophobic ply are joined to each other by glue lamination in a point-to-flat configuration. 31. The multi-ply paper product of claim 1, wherein both the at least one hydrophobic ply and the at least one absorbent ply bear a microemboss pattern, and wherein the at least one hydrophobic ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point configuration. 32. The multi-ply paper product of claim 1, comprising two absorbent plies having an absorbency greater than the at least one hydrophobic ply. 33. A multi-ply paper product made from a method comprising: forming at least one wetting resistant fibrous ply through contacting at least one wetting resistant compound with an aqueous cellulosic slurry; providing at least one absorbent fibrous ply with a greater water absorbency rate than the at least one wetting resistant ply; microembossing at least one of the at least one wetting resistant ply and the at least one absorbent ply; and, joining the at least one absorbent ply and the at least one wetting resistant ply by glue lamination in a point-to-point or point-to-flat configuration; wherein the at least one wetting resistant fibrous ply exhibits an initial contact angle of at least about 80° with water and wherein the multi-ply paper product is a napkin, towel, or tissue. 34. The multi-ply paper product of claim 33, further comprising: macroembossing the joined plies, and wherein both the at least one wetting resistant ply and the at least one absorbent ply are separately microembossed. 35. The multi-ply paper product of claim 33, wherein the paper product is a napkin. 36. The multi-ply paper product of claim 33, wherein the paper product is a towel. 37. The multi-ply paper product of claim 33, wherein the paper product is a tissue. 38. The multi-ply paper product of claim 33, wherein the paper product is a paper napkin. 39. A paper napkin comprising: a hydrophobic fibrous ply comprising alkyl ketene dimer in an amount from about 2 to about 12 pounds per ton of fiber and a wet strength resin in an amount from about 2 to about 4 pounds per ton of fiber; and, an absorbent fibrous ply possessing a greater water absorbency rate than the hydrophobic ply; wherein the hydrophobic ply has an initial contact angle of at least about 80° with water, wherein at least one of the at least one hydrophobic ply and the at least one absorbent ply bears a microemboss pattern, and wherein the at least one hydrophobic ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration. 40. The paper napkin of claim 39, wherein the at least one hydrophobic ply and the at least one absorbent ply are both separately microembossed and joined by glue lamination in a point-to-point configuration. 41. The paper napkin of claim 39, wherein the alkyl ketene dimer is promoted and emulsified with water. 42. The paper napkin of claim 39, wherein the at least one hydrophobic ply further comprises at least on retention aid. 43. The paper napkin of claim 39, wherein the at least one hydrophobic ply is microembossed, and wherein the at least one hydrophobic ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-flat configuration. 44. The paper napkin of claim 39, wherein the at least one absorbent ply is microembossed, and wherein the at least one absorbent ply and the at least one hydrophobic ply are joined to each other by glue lamination in a point-to-flat configuration. 45. The multi-ply paper product of claim 39, comprising two absorbent plies having an absorbency greater than the at least one hydrophobic ply. 46. A multi-ply paper product comprising: at least one wetting resistant fibrous ply comprising at least one wetting resistant compound; and, at least one absorbent fibrous ply having an absorbency greater than the at least one wetting resistant ply, wherein the at least one wetting resistant ply exhibits an initial contact angle of at least about 90° with water, wherein at least one of the at least one wetting resistant ply and the at least one absorbent ply bears a microemboss pattern, and wherein the at least one wetting resistant ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration; wherein the paper product exhibits strike through resistance; and wherein the multi-ply paper product is a napkin, towel, or tissue. 47. A multi-ply paper product comprising: at least one fibrous ply comprising at least one wetting resistant compound; and, at least one absorbent fibrous ply having an absorbency greater than the at least one ply comprising at least one wetting resistant compound, wherein the at least one fibrous ply comprising at least one wetting resistant compound exhibits an initial contact angle of at least about 80° with water, wherein at least one of the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply bears a microemboss pattern, and wherein the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration; wherein the paper product exhibits strike through resistance; and wherein the multi-ply paper product is a napkin, towel, or tissue. 48. The multi-ply paper product of claim 47, wherein the at least one wetting resistant compound is chosen from at least one of alkenyl ketene dimer, alkyl ketene dimer, fluorocarbons, alkenyl succinic anhydride, HMAP, ethylene-acrylic acid, and neutral rosin emulsions. 49. The multi-ply paper product of claim 48, wherein the at least one wetting resistant compound is alkyl ketene dimer. 50. The multi-ply paper product of claim 47, wherein the at least one wetting resistant compound is chosen from at least one of perfluorinated polyacrylates; perfluorinated polyurethanes; linear perfluoropolyethers; molecules possessing single or twin perfluorinated chains, including those in the form of carboxylate and phosphate salts, including amphoteric and ammonium salt derivatives; a perfluoroalkyl chain or chains attached to a polar functional group; polytetrafluoroethylene; and perfluoroalkyl substituted carboxylic acids. 51. The multi-ply paper product of claim 50, wherein the at least one wetting resistant compound is a perfluoroalkyl substituted carboxylic acid. 52. The multi-ply paper product of claim 47, wherein the paper product comprises only the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply. 53. The multi-ply paper product of claim 47, wherein the joined paper product is macroembossed. 54. The multi-ply paper product of claim 47, wherein the at least one ply comprising at least one wetting resistant compound bears a microemboss pattern, and wherein the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply are joined to each other by glue lamination in a point-to-flat configuration. 55. The multi-ply paper product of claim 47, wherein the at least one absorbent ply bears a microemboss pattern, and wherein the at least one absorbent ply and the at least one ply comprising at least one wetting resistant compound are joined to each other by glue lamination in a point-to-flat configuration. 56. The multi-ply paper product of claim 47, wherein both the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply bear a microemboss pattern, and wherein the at least one ply comprising at least one wetting resistant compound and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point configuration. 57. The multi-ply paper product of claim 47, comprising two absorbent plies having an absorbency greater than the at least one wetting resistant compound. 58. A multi-ply paper product comprising: at least one wetting resistant fibrous ply comprising at least one wetting resistant compound; and, at least one absorbent fibrous ply having an absorbency greater than the at least one wetting resistant ply, wherein at least one of the at least one wetting resistant ply and the at least one absorbent ply bears a microemboss pattern, and wherein the at least one wetting resistant ply and the at least one absorbent ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration; and wherein the at least one wetting resistant ply has an initial contact angle of at least about 80° with water and a water absorption rate of at least about 50 seconds, wherein the paper product exhibits strike through resistance; and wherein the multi-ply paper product is a napkin, towel, or tissue. 59. A multi-ply paper product comprising a first fibrous ply with an initial contact angle of at least about 80° with water and a water absorption rate of at least about 50 seconds, and a second fibrous ply possessing greater absorbency that the first ply, wherein at least one of the first ply and the second ply bears a microemboss pattern and wherein the first ply and the second ply are joined to each other by glue lamination in a point-to-point or point-to-flat configuration; wherein the paper product exhibits strike through resistance; and wherein the multi-ply paper product is a napkin, towel, or tissue. 60. The multi-ply paper product of claim 59, wherein the first ply comprises at least one hydrophobe. 61. The multi-ply paper product of claim 60, wherein the at least one hydrophobe is alkyl ketene dimer. 62. The multi-ply paper product of claim 59, wherein the first ply comprises at least one oleophobe. 63. The multi-ply paper product of claim 62, wherein the at least one oleophobe is a perfluoroalkyl substituted carboxylic acid. 64. The multi-ply paper product of claim 59, wherein the first ply further comprises at least one retention aid. 65. The multi-ply paper product of claim 64, wherein the at least one retention aid is a cationic coagulant. 66. The multi-ply paper product of claim 59, wherein the first ply further comprises a cationic coagulant and the at least one wetting resistant compound is alkyl ketene dimer. 67. The multi-ply paper product of claim 59, wherein at least one of the first ply and the second ply comprise at least one wet strength additive. 68. The multi-ply paper product of claim 67, wherein the at least one wet strength additive is a polyamide-epichlorohydrin resin. 69. The multi-ply paper product of claim 59, where both the first ply and the second ply are separately microembossed and joined to each other by glue lamination in a point to point configuration. 70. The multi-ply paper product of claim 59, wherein the paper product is a napkin. 71. The multi-ply paper product of claim 59, wherein the first ply bears a microemboss pattern, and wherein the first ply and second ply are joined to each other by glue lamination in a point-to-flat configuration. 72. The multi-ply paper product of claim 59, wherein the second ply bears a microemboss pattern, and wherein the second ply and first ply are joined to each other by glue lamination in a point-to-flat configuration.
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이 특허에 인용된 특허 (224)
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