US2017356109A1PendingUtilityA1

Top Sheet for Personal Care Product

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Assignee: WELSPUN INDIA LTDPriority: Jun 10, 2016Filed: Nov 3, 2016Published: Dec 14, 2017
Est. expiryJun 10, 2036(~9.9 yrs left)· nominal 20-yr term from priority
Inventors:Dipali GoenkaPranay Sahu
D04H 3/011D04H 1/498A61F 13/51121D04H 5/03D10B 2321/022D04H 1/4266D10B 2401/022D10B 2509/026D10B 2201/01A61F 13/513D04H 3/007D04H 1/425A61F 13/5123D04H 5/06D04H 1/70D10B 2211/01
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PatentIndex Score
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Claims

Abstract

A top sheet for an absorbent personal care product is a water-permeable composite web produced by hydro-entangling a web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and a web of man-made continuous filament yards such that a first side of the composite web exposes the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and an opposite second side of the composite web has the man-made continuous filament yarns. The web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers is hydrophilic and the web of man-made continuous filament synthetic yarns is hydrophobic. The composite web weights between about 20 gsm and about 40 gsm.

Claims

exact text as granted — not AI-modified
That which is claimed is: 
     
         1 . A nonwoven fabric, comprising a first side of exposed chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and an opposite second side of man-made continuous filament yarns, wherein the nonwoven fabric weighs between about 20 gsm and about 40 gsm. 
     
     
         2 . The nonwoven fabric of  claim 1 , wherein the nonwoven fabric is a composite web produced by hydro-entangling a web of the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and a web of the man-made continuous filament yarns. 
     
     
         3 . The nonwoven fabric of  claim 1 , wherein the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers comprise chemical-free fibers selected from the group consisting of cotton, grey cotton, bamboo, viscose, modal, tencel, silk, and wool. 
     
     
         4 . The nonwoven fabric of  claim 2 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers comprises a blend of fibers selected from the group consisting of cotton, grey cotton, bamboo, viscose, modal, tencel, silk, and wool. 
     
     
         5 . The nonwoven fabric of  claim 1 , wherein the man-made continuous filament yarns comprise polyester or polypropylene. 
     
     
         6 . The nonwoven fabric of  claim 1 , wherein the man-made continuous filament yarns comprise bi-component fibers. 
     
     
         7 . The nonwoven fabric of  claim 2 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers is hydrophilic, and wherein the web of man-made continuous filament synthetic yarns is hydrophobic. 
     
     
         8 . The nonwoven fabric of  claim 2 , wherein composite web is water-permeable. 
     
     
         9 . The nonwoven fabric of  claim 2 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers weighs at least about 10 gsm, and wherein the web of man-made continuous filament synthetic yarns weighs at least about 10 gsm. 
     
     
         10 . A top sheet for an absorbent personal care product, the top sheet comprising:
 a liquid-permeable composite web produced by hydro-entangling a web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and a web of man-made continuous filament yarns, wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers is hydrophilic, wherein the web of man-made continuous filament synthetic yarns is hydrophobic, wherein the composite web weighs between about 20 gsm and about 40 gsm, wherein a first side of the composite web exposes the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and wherein an opposite second side of the composite web comprises the man-made continuous filament yarns.   
     
     
         11 . The top sheet of  claim 10 , wherein the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers comprise chemical-free fibers selected from the group consisting of cotton, grey cotton, bamboo, viscose, modal, tencel, silk, and wool. 
     
     
         12 . The top sheet of  claim 11 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers comprises a blend of fibers selected from the group consisting of cotton, grey cotton, bamboo, viscose, modal, tencel, silk, and wool. 
     
     
         13 . The top sheet of  claim 10 , wherein the man-made continuous filament yarns comprise polyester or polypropylene. 
     
     
         14 . The top sheet of  claim 10 , wherein the man-made continuous filament yarns comprise bi-component fibers. 
     
     
         15 . The top sheet of  claim 10 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers weighs at least about 10 gsm, and wherein the web of man-made continuous filament synthetic yarns weighs at least about 10 gsm. 
     
     
         16 . A method of producing a top sheet for an absorbent personal care product, the method comprising hydro-entangling a web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and a web of man-made continuous filament yarns to produce a composite web such that a first side of the composite web exposes the chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers and an opposite second side of the composite web comprises the man-made continuous filament yarns. 
     
     
         17 . The method of  claim 16 , wherein the web of chemical free natural and/or cellulosic staple fibers and/or blend of natural and cellulosic staple fibers weighs at least about 10 gsm, and wherein the web of man-made continuous filament synthetic yarns weighs at least about 10 gsm. 
     
     
         18 . The method of  claim 16 , wherein the composite web weighs between about 20 gsm and about 40 gsm. 
     
     
         19 . The method of  claim 16 , further comprising forming apertures in the composite web. 
     
     
         20 . The method of  claim 16 , further comprising embossing the composite web to form patterns and/or characters thereon.

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