Disposable wearing article having multilayered core comprising convex gaps and v-shaped cutouts
First Claim
1. A disposable pull-on wearing article having a longitudinal axis and a transverse axis, said article comprising:
- a front waist region;
a rear waist region;
a crotch region;
an outer cover;
a body fluid absorbent panel being bonded at a transversely middle zone thereof and at longitudinally opposite ends to said outer cover and extending over said crotch region further into said front and rear waist regions, said body fluid absorbent panel having a longitudinal direction extending toward said front and rear waist regions and a transverse direction crossing said longitudinal direction,said body fluid absorbent panel comprising a body fluid absorbent core having an inner surface facing a wearer'"'"'s skin and an outer surface facing away from said wearer'"'"'s skin and a liquid-pervious sheet covering at least said inner surface of said inner surface and facing said wearer'"'"'s skin;
said core traversing said crotch region and extending into said front waist region and into said rear waist region, and comprising a central portion extending longitudinally from said front waist region through said crotch region into said rear waist region, said core also comprising two lateral portions, each lying on opposite lateral sides of said central portion;
said lateral portions each having a front end region, a rear end region and an intermediate region between front and rear end regions as viewed in said longitudinal direction;
said front and rear end regions being spaced apart from said central portion by front and rear pairs of slit-like gaps formed in said core between said central portion and said lateral portions and extending in an arc from lateral edges of said core toward said longitudinal axis and toward said transverse axis, and said intermediate region of each lateral portion being contiguous to and continuous with said central portion;
wherein an outer side edge of said intermediate region of each lateral portion defines a plurality of V shaped cutouts whose vertices point toward said longitudinal axis, and whose sides diverge from one another as they extend away from said longitudinal axis; and
said body fluid absorbent panel being provided in a vicinity of said outer side edges with elastic members extending in a stretched state in said longitudinal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
Here is disclosed a disposable pull-on wearing article improved so that a body fluid absorbent core may be curved about a crotch region toward front and rear waist regions without forming thick creases creating a feeling of discomfort against a wearer, and wherein a concavity bulging downward may be quickly formed in the crotch region as the core is curved.
The article includes a body fluid absorbent core which includes a first core lying on a transverse middle of a crotch region and a pair of second cores lying on both sides of the first core. Front and rear end portions of the respective second cores are spaced apart from the first core by slit-like gaps and intermediate portions extending between the front and rear end portions are contiguous to the first core. Outer side edges of the respective second cores are formed with laid down V-shape cutouts.
91 Citations
8 Claims
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1. A disposable pull-on wearing article having a longitudinal axis and a transverse axis, said article comprising:
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a front waist region; a rear waist region; a crotch region; an outer cover; a body fluid absorbent panel being bonded at a transversely middle zone thereof and at longitudinally opposite ends to said outer cover and extending over said crotch region further into said front and rear waist regions, said body fluid absorbent panel having a longitudinal direction extending toward said front and rear waist regions and a transverse direction crossing said longitudinal direction, said body fluid absorbent panel comprising a body fluid absorbent core having an inner surface facing a wearer'"'"'s skin and an outer surface facing away from said wearer'"'"'s skin and a liquid-pervious sheet covering at least said inner surface of said inner surface and facing said wearer'"'"'s skin; said core traversing said crotch region and extending into said front waist region and into said rear waist region, and comprising a central portion extending longitudinally from said front waist region through said crotch region into said rear waist region, said core also comprising two lateral portions, each lying on opposite lateral sides of said central portion; said lateral portions each having a front end region, a rear end region and an intermediate region between front and rear end regions as viewed in said longitudinal direction; said front and rear end regions being spaced apart from said central portion by front and rear pairs of slit-like gaps formed in said core between said central portion and said lateral portions and extending in an arc from lateral edges of said core toward said longitudinal axis and toward said transverse axis, and said intermediate region of each lateral portion being contiguous to and continuous with said central portion; wherein an outer side edge of said intermediate region of each lateral portion defines a plurality of V shaped cutouts whose vertices point toward said longitudinal axis, and whose sides diverge from one another as they extend away from said longitudinal axis; and said body fluid absorbent panel being provided in a vicinity of said outer side edges with elastic members extending in a stretched state in said longitudinal direction. - View Dependent Claims (2, 3, 4, 5)
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6. A disposable pull-on wearing article having a longitudinal axis and a transverse axis, said article comprising:
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a front waist region; a rear waist region; a crotch region; an outer cover; a body fluid absorbent panel being bonded at a transversely middle zone thereof and at longitudinally opposite ends thereof to said outer cover and extending over said crotch region further into said front and rear waist regions; said body fluid absorbent panel comprising a body fluid absorbent core having an inner surface facing a wearer'"'"'s skin and an outer surface facing away from said wearer'"'"'s skin and a liquid-pervious sheet covering at least said inner surface of said inner and outer surfaces and facing said wearer'"'"'s skin; said core traversing said crotch region and extending into said front waist region and comprising a center segment and two lateral segments, each lying on opposite lateral sides of said central segment and which are shorter in dimensions than said central segment in a longitudinal direction along said longitudinal axis; said lateral segments respectively having front end portions, rear end portions and intermediate portions extending between these front and rear end portions as viewed in said longitudinal direction; said front and rear end portions of said lateral segments being spaced apart from said central segment by front and rear pairs of slit-like gaps formed in said core between said central segment and respective said lateral segments and extending in an arc from lateral edges of said core toward said longitudinal axis in the longitudinal direction of said longitudinal axis, and said intermediate portions of said lateral segments being contiguous to said central segment; said intermediate portion being formed along said transversely opposite outer side edges thereof between terminal ends of said slit-like gaps with laid down V-shape cutouts whose vertices point toward said longitudinal axis, and whose sides diverge from one another as they extend away from said longitudinal axis; and said body fluid absorbent panel being provided in a vicinity of said outer side edges with elastic members extending in a stretched state in said longitudinal direction. - View Dependent Claims (7)
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8. A disposable pull-on wearing article having a longitudinal axis and a transverse axis, said article comprising:
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a front waist region; a rear waist region; a crotch region; a body fluid absorbent panel extending over said crotch region into said front and rear waist regions; said body fluid absorbent panel comprising a body fluid absorbent core; said core extends over said crotch region and into said front and rear waist regions, said core comprising a central portion, extending longitudinally from said front waist region through said crotch region into said rear waist region, said central portion having a transverse width that gradually increases with distance away from a center of said crotch region so that said transverse width of said central portion is greater in said front waist region and said rear waist region than in said crotch region; said core also comprising two lateral portions, each lying on opposite lateral sides of said central portion;
said lateral portions being shorter in a longitudinal direction than said central portion, and being continuous with said central portion in at least a region of said transverse axis;said intermediate region of each said lateral portions being continuous with said central portion, wherein lateral edges of said core define forward and rearward pairs of channels extending in arcs toward said longitudinal and transverse axes and which together define a partial border between said center segment and said lateral segments, and wherein outside lateral edges of said lateral portions define a plurality of V-shaped cutouts whose vertices point toward said longitudinal axis, and whose sides diverge from one another as they extend away from said longitudinal axis.
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Specification