Stretchable Laminates of Nonwoven Web(s) and Elastic Film
First Claim
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1. A stretchable laminate comprising:
- a. a first nonwoven web, said first nonwoven web comprising;
a first layer of fibers comprising spunbond fibers, said first layer having a top and a bottom surface, said fibers of said first layer forming a plurality of interstices;
a second layer of fibers comprising meltblown fibers, said second layer having a top and a bottom surface wherein the top surface of said second layer faces said bottom surface of said first layer, and wherein at least some of said meltblown fibers are located inside some of the interstices of said first layer; and
a third layer of fibers comprising spunbond fibers, said third layer having a top and a bottom surface, wherein the top surface of said third layer faces the bottom surface of said second layer such that said second layer is positioned between said first and said third layers; and
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b. a web of an elastomeric material having top and bottom surfaces,wherein said bottom surface of said third layer comprising spunbond fibers of said first nonwoven web is bonded to said top surface of said elastomeric web to form a laminate.
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Abstract
A stretchable laminate, a process of making a stretchable laminate and a disposable absorbent article that includes a stretchable laminate are disclosed. The stretchable laminate includes a nonwoven web and a web of elastomeric material. The nonwoven web includes two layers of spunbond fibers and one layer of meltblown fibers. Some of the meltblown fibers are present in the interstices formed by the spunbond fibers of one of the layers.
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Citations
20 Claims
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1. A stretchable laminate comprising:
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a. a first nonwoven web, said first nonwoven web comprising; a first layer of fibers comprising spunbond fibers, said first layer having a top and a bottom surface, said fibers of said first layer forming a plurality of interstices; a second layer of fibers comprising meltblown fibers, said second layer having a top and a bottom surface wherein the top surface of said second layer faces said bottom surface of said first layer, and wherein at least some of said meltblown fibers are located inside some of the interstices of said first layer; and a third layer of fibers comprising spunbond fibers, said third layer having a top and a bottom surface, wherein the top surface of said third layer faces the bottom surface of said second layer such that said second layer is positioned between said first and said third layers; and
;b. a web of an elastomeric material having top and bottom surfaces, wherein said bottom surface of said third layer comprising spunbond fibers of said first nonwoven web is bonded to said top surface of said elastomeric web to form a laminate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process of making a stretchable laminate comprising:
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obtaining a first nonwoven web, said first nonwoven web comprising; a first layer of fibers comprising spunbond fibers, said first layer having a top and a bottom surface, said fibers of said first layer forming a plurality of interstices; a second layer of fibers comprising meltblown fibers, said second layer having a top and a bottom surface wherein the top surface of said second layer faces said bottom surface of said first layer, and wherein at least some of said meltblown fibers are located inside some of the interstices of said first layer; and a third layer of fibers comprising spunbond fibers, said third layer having a top and a bottom surface, wherein the top surface of said third layer faces the bottom surface of said second layer such that said second layer is positioned between said first and said third layers; obtaining a web of an elastomeric material having top and bottom surfaces; and bonding said bottom surface of said third layer comprising spunbond fibers of said first nonwoven web to said top surface of said elastomeric web. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A disposable absorbent article comprising:
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a chasis having opposing first and second longitudinal side edges, said chassis comprising a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and said backsheet; and a pair of stretchable ears or side panels connected to each longitudinal side edge of said chassis, each of said ears or side panels comprising a stretchable laminate comprising; a. a first nonwoven web, said first nonwoven web comprising; a first layer of fibers comprising spunbond fibers, said first layer having a top and a bottom surface, said fibers of said first layer forming a plurality of interstices; a second layer of fibers comprising meltblown fibers, said second layer having a top and a bottom surface wherein the top surface of said second layer faces said bottom surface of said first layer, and wherein at least some of said meltblown fibers are located inside some of the interstices of said first layer; and a third layer of fibers comprising spunbond fibers, said third layer having a top and a bottom surface, wherein the top surface of said third layer faces the bottom surface of said second layer such that said second layer is positioned between said first and said third layers; and
;b. a web of an elastomeric material having top and bottom surfaces, wherein said bottom surface of said third layer comprising spunbond fibers of said first nonwoven web is bonded to said top surface of said elastomeric web to form a laminate. - View Dependent Claims (19, 20)
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Specification