An absorbent article of the present invention may comprise a backsheet, a wetness indicator composition, and an absorbent core. The wetness indicator composition may comprise a stabilizer, a colorant, and a matrix. The absorbent core may comprise a nonwoven layer and an absorbent polymer material, a
An absorbent article of the present invention may comprise a backsheet, a wetness indicator composition, and an absorbent core. The wetness indicator composition may comprise a stabilizer, a colorant, and a matrix. The absorbent core may comprise a nonwoven layer and an absorbent polymer material, and optionally, a thermoplastic adhesive material. The wetness indicator composition may be in direct contact with an inner surface of the backsheet and an outer surface of the nonwoven layer. And, the absorbent polymer material, and optionally, the thermoplastic adhesive material, may be in direct contact with an inner surface of the nonwoven. Further, the absorbent core may be substantially cellulose free and may be oriented in at least one row.
대표청구항▼
1. An absorbent article comprising: a backsheet;a wetness indicator composition comprising a stabilizer, a colorant, and a matrix;an absorbent core comprising a nonwoven layer and absorbent polymer material;wherein the wetness indicator composition is in direct contact with an inner surface of the b
1. An absorbent article comprising: a backsheet;a wetness indicator composition comprising a stabilizer, a colorant, and a matrix;an absorbent core comprising a nonwoven layer and absorbent polymer material;wherein the wetness indicator composition is in direct contact with an inner surface of the backsheet and an outer surface of the nonwoven layer;wherein at least a portion of the absorbent polymer material is in direct contact with an inner surface of the nonwoven;wherein the absorbent core comprises less than 10% by weight cellulosic fibers; andwherein the stabilizer has a pH lower than the pH of the colorant. 2. The absorbent article of claim 1, wherein the wetness indicator composition comprises materials selected from the group consisting of quaternary ammonium salt compounds, ethoxylated quaternary ammonium salt compounds, propoxylated quaternary ammonium salts, alkyl diammonium pentamethyl chlorides, quarternized silicone compounds, cationic guars, cationic exchange resins, cationic clay materials, amines, ethoxylated amines, propoxylated amines, polyamines, amine oxides, amides, polyethyleneimines, anionic exchange resins, polyacrylic acid polymers, organic acids, rosins, rosin esters, pentaerythritol rosin esters, polymerized rosins, dyes, pigments, an HLB modifier, a surfactant, an anti-oxidant, viscosity modifiers, hardening agents, and combinations thereof. 3. The absorbent article of claim 1, wherein the wetness indicator composition comprises straight chain alkyl moieties having a chain length from about C12 to about C300. 4. The absorbent article of claim 1, wherein the colorant is a pH indicator. 5. The absorbent article of claim 1, wherein the colorant is selected from the group consisting of bromocresol green, bromocresol purple, bromophenol blue, m-cresol purple, cresol red, chlorophenol red, bromothymol blue, bromopyrogallol red, bromoxylenol blue, acridine, acridine orange, oil soluble dyes, pigments, and combinations thereof. 6. The absorbent article of claim 1, wherein the backsheet comprises polypropylene, polyethylene, or combinations thereof. 7. The absorbent article of claim 1, wherein the backsheet has a water vapor transmission rate greater than about 100 g/m2/24 hrs. 8. The absorbent article of claim 1, wherein the backsheet has a basis weight greater than about 5 g/m2. 9. The absorbent article of claim 1, wherein the wetness indicator composition is affixed to the backsheet. 10. The absorbent article of claim 1, wherein the wetness indicator composition is affixed to the nonwoven layer of the absorbent core. 11. The absorbent article of claim 1, wherein the wetness indicator is affixed to the backsheet in one or more patterns selected from the group consisting of stripes, dots, geometric shapes, irregular shapes, alphanumeric characters, anthropomorphic images, pictorial representation of animals, pictorial representation of inanimate objects, cartoon characters, logos, trademarks and combinations thereof. 12. The absorbent article of claim 1, wherein the nonwoven layer is a dusting layer. 13. The absorbent article of claim 1, wherein the nonwoven layer is surfactant free. 14. The absorbent article of claim 1, wherein the dusting layer has a mean flow pore size greater than about 1 micron. 15. The absorbent article of claim 1, wherein the dusting layer has a basis weight greater than about 3 g/m2. 16. The absorbent article of claim 1, wherein the dusting layer has a hydrohead greater than about 1 mm of water. 17. The absorbent article of claim 1, wherein the dusting layer has a fiber diameter greater than about 10 nanometers. 18. The absorbent article of claim 1, wherein the dusting layer comprises fibers having a non-round cross-section. 19. The absorbent article of claim 1, wherein the colorant has an initial color state, the initial color state being associated with a first state of the wetness indicator composition and a final color state, the final color state being associated with a second state of the wetness indicator composition. 20. The absorbent article of claim 19, wherein the matrix comprises a mixture of a first binding agent and a second binding agent, wherein the first binding agent immobilizes the colorant when it is in its initial color state and the second binding agent immobilizes said colorant when it is in its final color state.
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이 특허에 인용된 특허 (95)
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Cammarota Mark Thomas ; Jordan Mary Patricia ; Lee MeeWha ; MacDonald Gregory Allen ; Ratliff Kathleen Irene, Absorbent articles having wetness indicating graphics incorporating a training zone.
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DesMarais Thomas A. (Norwood OH) Stone Keith J. (Fairfield OH) Thompson Hugh A. (Fairfield OH) Young Gerald A. (Cincinnati OH) LaVon Gary D. (Harrison OH) Dyer John C. (Cincinnati OH), Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials.
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Goldman Stephen A. (Wyoming OH) Haynes Nancy A. (Okeana OH) Mansfield Todd L. (Cincinnati OH) Plischke Manfred (Steinbach DEX) Retzsch Herbert L. (Cincinnati OH) Walker Trevor (Cincinnati OH) Young G, Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absor.
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Wynne Robert L. (Pacifica CA) Snow David W. (Menlo Park CA) Rogers Larry B. (Half Moon Bay CA) Powell Ferolyn (San Carlos CA) Krier Jeffrey W. (El Granada CA) Hundertmark Ron (San Mateo CA) Hill ; II, Cutter device.
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Butt ; Sr. Jon R. (Woodstock GA) Creagan Christopher C. (Marietta GA) Dunkerly ; II Cedric A. (Alpharetta GA) Yeo Richard S. (Dunwoody GA), Disposable garment with improved containments means.
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