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US 7,582,076 B2Granted
Open-type disposable wearing article
AssigneeUni-Charm Corporation
InventorsToshiyasu Yoshioka, Yasushi Sayama
Life of this patent
Estimating the term…
Abstract
Here is disclosed an open-type disposable wearing article composed of a front waist region, a rear waist region and a crotch region extending between these waist regions wherein tape fasteners used to connect the front and rear waist to each other are attached to side flaps in the rear waist region and each of the side flaps has a first zone adapted to cover a surface facing a wearer's body of the fixed end portion of the associated tape fastener and a second zone defined by the side flap except for the first zone and wherein the first zone has a basis weight higher than that of the second zone.
Claims10
An open-type disposable wearing article, comprising
- side flaps extending in a longitudinal direction of the article and end flaps extending in a transverse direction of the article;
- front and rear waist regions and a crotch region extending in said longitudinal direction between said waist regions;
- flexible tape fasteners for attaching said front and rear waist regions to each other, each of said tape fasteners being attached to one of said side flaps in said rear waist region, and having a fixed end portion bonded to said respective side flap and a free end portion extending outward from said fixed end portion in the transverse direction, said free end portion having an anchoring element adapted to be anchored on said front waist region;
- a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and backsheet;
- and
- a pair of liquid impervious sheets defining barrier flaps on transversely opposite sides of said absorbent core for preventing lateral leakage of bodily discharge;
- wherein said liquid impervious sheets and said backsheet extend continuously in the transverse direction beyond transversely opposite side edges of said topsheet and said absorbent core to define said side flaps,
- wherein each of said side flaps comprises
- a first zone in which said fixed end portion of the respective tape fastener is sandwiched between the backsheet and a respective one of the liquid impervious sheets;
- a second zone located transversely inward of said first zone;
- and
- a layer of a material different from those of said backsheet and said liquid impervious sheets, said layer being bonded to the first zone of said side flap whereby said first zone has a basis weight higher than that of said second zone,
- wherein, in each of said side flaps,
- one of said backsheet and the respective liquid impervious sheet is folded along a longitudinal edge of said side flap in at least said first zone, and comprises a lower fold and an upper fold placed on the lower fold;
- and
- said upper fold and said fixed end portion of the respective tape fastener do not overlap throughout an entire area of said fixed end portion.
13 more elements
A disposable wearing article, comprising
- side flaps extending in a longitudinal direction of the article and end flaps extending in a transverse direction of the article;
- front and rear waist regions and a crotch region extending in said longitudinal direction between said waist regions;
- flexible tape fasteners for attaching said front and rear waist regions to each other, each of said tape fasteners being attached to one of said side flaps in said rear waist region, and having a fixed end portion bonded to said respective side flap and a free end portion extending outward from said fixed end portion in the transverse direction, said free end portion having an anchoring element adapted to be anchored on said front waist region;
- a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and backsheet;
- and
- a pair of liquid impervious sheets defining barrier flaps on transversely opposite sides of said absorbent core for preventing lateral leakage of bodily discharge;
- wherein said liquid impervious sheets and said backsheet extend continuously in the transverse direction beyond transversely opposite side edges of said topsheet and said absorbent core to define said side flaps,
- wherein each of said side flaps comprises
- a first zone in which said fixed end portion of the respective tape fastener is sandwiched between the backsheet and a respective one of the liquid impervious sheets;
- and
- a second zone located transversely inward of said first zone, and wherein, in each of said side flap, the liquid impervious sheet is folded along a longitudinal edge of said side flap in at least said first zone, whereby said first zone has a basis weight higher than that of said second zone.
8 more elements
A disposable wearing article, comprising
- side flaps extending in a longitudinal direction of the article and end flaps extending in a transverse direction of the article;
- front and rear waist regions and a crotch region extending in said longitudinal direction between said waist regions;
- flexible tape fasteners for attaching said front and rear waist regions to each other, each of said tape fasteners being attached to one of said side flaps in said rear waist region, and having a fixed end portion bonded to said respective side flap and a free end portion extending outward from said fixed end portion in the transverse direction, said free end portion having an anchoring element adapted to be anchored on said front waist region;
- a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and backsheet;
- and
- a pair of liquid impervious sheets defining barrier flaps on transversely opposite sides of said absorbent core for preventing lateral leakage of bodily discharge;
- wherein said liquid impervious sheets and said backsheet extend continuously in the transverse direction beyond transversely opposite side edges of said topsheet and said absorbent core to define said side flaps,
- wherein each of said side flaps comprises
- a first zone in which said fixed end portion of the respective tape fastener is sandwiched between the backsheet and a respective one of the liquid impervious sheets;
- and
- a second zone located transversely inward of said first zone, and
- wherein, in each of said side flap, the backsheet is folded along a longitudinal edge of said side flap in at least said first zone, whereby said first zone has a basis weight higher than that of said second zone.
9 more elements
An open-type disposable wearing article, comprising
- side flaps extending in a longitudinal direction of the article and end flaps extending in a transverse direction of the article;
- front and rear waist regions and a crotch region extending in said longitudinal direction between said waist regions;
- flexible tape fasteners for attaching said front and rear waist regions to each other, each of said tape fasteners being attached to one of said side flaps in said rear waist region, and having a fixed end portion bonded to said respective side flap and a free end portion extending outward from said fixed end portion in the transverse direction, said free end portion having an anchoring element adapted to be anchored on said front waist region;
- a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and backsheet;
- and
- a pair of liquid impervious sheets defining barrier flaps on transversely opposite sides of said absorbent core for preventing lateral leakage of bodily discharge;
- wherein said liquid impervious sheets and said backsheet extend continuously in the transverse direction beyond transversely opposite side edges of said topsheet and said absorbent core to define said side flaps,
- wherein each of said side flaps comprises
- a first zone in which said fixed end portion of the respective tape fastener is sandwiched between the backsheet and a respective one of the liquid impervious sheets;
- a second zone located transversely inward of said first zone;
- and
- a layer of a material different from those of said backsheet and said liquid impervious sheets, said layer being bonded to the first zone of said side flap whereby said first zone has a basis weight higher than that of said second zone,
- wherein
- the liquid impervious sheets extend continuously inwardly in the transverse direction beyond transversely opposite side edges of said core and terminate at inner edges;
- and
- said inner edges of said liquid impervious sheets have elastic members bonded thereto to bias the inner edges of said liquid impervious sheets to rise above the topsheet to define said barrier flaps.
13 more elements
An open-type disposable wearing article, comprising
- side flaps extending in a longitudinal direction of the article and end flaps extending in a transverse direction of the article;
- front and rear waist regions and a crotch region extending in said longitudinal direction between said waist regions;
- flexible tape fasteners for attaching said front and rear waist regions to each other, each of said tape fasteners being attached to one of said side flaps in said rear waist region, and having a fixed end portion bonded to said respective side flap and a free end portion extending outward from said fixed end portion in the transverse direction, said free end portion having an anchoring element adapted to be anchored on said front waist region;
- a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed between said topsheet and backsheet;
- and
- a pair of liquid impervious sheets defining barrier flaps on transversely opposite sides of said absorbent core for preventing lateral leakage of bodily discharge;
- wherein said liquid impervious sheets and said backsheet extend continuously in the transverse direction beyond transversely opposite side edges of said topsheet and said absorbent core to define said side flaps,
- wherein each of said side flaps comprises
- a first zone in which said fixed end portion of the respective tape fastener is sandwiched between the backsheet and a respective one of the liquid impervious sheets;
- a second zone located transversely inward of said first zone;
- and
- a layer of a material different from those of said backsheet and said liquid impervious sheets, said layer being bonded to the first zone of said side flap whereby said first zone has a basis weight higher than that of said second zone,
- wherein, in each of said side flaps,
- one of said backsheet and the respective liquid impervious sheet is folded along a longitudinal edge of said side flap to define first and second folds one placed on top of the other;
- and
- said first fold and said fixed end portion of the respective tape fastener do not overlap each other throughout an entire area of said fixed end portion.
13 more elements
Dependencies are inferred from the claim text.