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CN-121985925-A - Absorbent article with improved fit and comfort

CN121985925ACN 121985925 ACN121985925 ACN 121985925ACN-121985925-A

Abstract

An absorbent article is provided that includes a chassis including a central longitudinal axis and an absorbent core. The chassis includes a front waist region, a landing zone and elastic waist features both positioned in the front waist region. The elastic waist feature includes a first end edge positioned adjacent to the front waist edge. The elastic waist feature is in an overlapping relationship with a portion of the landing zone at a longitudinal distance Y and in an overlapping relationship with a portion of the absorbent core in the front waist region at a longitudinal distance X. The elastic waist feature has a longitudinal distance W between the first end edge and the second end edge. The ratio of the distance X to the distance W is at least 0.4 and the ratio of the distance Y to the distance W is at least 0.4.

Inventors

  • TL WILLIAMS-DARLING Ton
  • P. M. Tran

Assignees

  • 宝洁公司

Dates

Publication Date
20260505
Application Date
20241002
Priority Date
20231012

Claims (18)

  1. 1. An absorbent article comprising: a base structure, the base structure comprising: a central lateral axis; A central longitudinal axis; A liquid permeable topsheet; a liquid impermeable backsheet; an absorbent core positioned intermediate the topsheet and the backsheet, wherein the absorbent core comprises an absorbent material; a front waist region comprising a front waist edge; a back waist region comprising a back waist edge; A garment-facing surface; a wearer-facing surface; A landing zone positioned on the garment-facing surface in the front waist region, and An elastic waist feature in the front waist region, the elastic waist feature comprising an elastic film, a nonwoven, and a plurality of bonds joining the elastic film and the nonwoven; the elastic waist feature comprises a first end edge positioned adjacent to the front waist edge, preferably the first end edge is substantially coterminous with the front waist edge; the elastic waist feature includes a second end edge, the elastic waist feature: In overlapping relation with a portion of the landing zone in a longitudinal distance Y in a direction parallel to the central longitudinal axis, and An overlapping relationship with a portion of the absorbent core in the front waist region in a direction parallel to the central longitudinal axis by a longitudinal distance X; The elastic waist feature has a total longitudinal distance W between the first end edge and the second end edge in a direction parallel to the central longitudinal axis; Wherein the ratio of the longitudinal distance X to the longitudinal distance W is at least 0.4, and Wherein the ratio of the longitudinal distance Y to the longitudinal distance W is at least 0.4.
  2. 2. The absorbent article of claim 1, wherein the ratio of the longitudinal distance X to the longitudinal distance W is at least 0.5 and less than 0.9.
  3. 3. The absorbent article of claim 1 or 2, wherein the ratio of the longitudinal distance Y to the longitudinal distance W is at least 0.5 and less than 0.9.
  4. 4. The absorbent article according to any of the preceding claims, wherein the longitudinal distance W is from about 20mm to about 70mm, preferably from about 30mm to about 55mm, and more preferably from about 35mm to about 55mm.
  5. 5. The absorbent article of any of the preceding claims, wherein the plurality of bonds comprises ultrasonic bonds.
  6. 6. The absorbent article of any of the preceding claims, wherein the second end edge has a portion that is not attached to the topsheet.
  7. 7. The absorbent article of any of the preceding claims, wherein the second end edge is joined to the topsheet over its entire length.
  8. 8. The absorbent article of any of the preceding claims, wherein the elastic waist feature has a width extending in a direction parallel to the central lateral axis of at least about 100mm, preferably from about 120mm to about 170 mm.
  9. 9. The absorbent article of any of the preceding claims, wherein the chassis has a total width extending in a direction parallel to the central lateral axis, and wherein the elastic waist feature has a width extending in a direction parallel to the central lateral axis that is at least about 50% of the total width, preferably from about 70% to about 90% of the total width.
  10. 10. The absorbent article of any of the preceding claims, comprising a barrier leg cuff joined to the absorbent article, wherein the barrier leg cuff comprises a first nonwoven layer, a second nonwoven layer, a third nonwoven layer, a fourth nonwoven layer, and one or more elastic strands.
  11. 11. The absorbent article of claim 10, wherein a portion of the barrier leg cuffs overlaps a portion of the elastic waist feature to impart stiffness to the front waist region.
  12. 12. The absorbent article of claim 10 or 11, wherein the barrier leg cuffs exhibit a low surface tension fluid strike through time in the range of from about 8 seconds to about 35 seconds, preferably from about 11 seconds to about 30 seconds, as measured by low surface tension fluid strike through time.
  13. 13. The absorbent article of any of claims 10 to 12, wherein the barrier leg cuffs comprise meltblown fibers in an amount of from about 12% to about 20%, preferably from about 14% to about 18%, by weight of the nonwoven material of the barrier leg cuffs.
  14. 14. The absorbent article of any of claims 10 to 13, wherein the barrier leg cuffs comprise erucamide, and wherein the nonwoven layer of the barrier leg cuffs has a total basis weight in the range of from about 15gsm to about 25 gsm.
  15. 15. The absorbent article of any of claims 10 to 14, wherein the barrier leg cuff comprises a plurality of bonds, and wherein the plurality of bonds form a total bonded area of from about 12% to about 17%, preferably from about 13% to about 16%, of the total area of the barrier leg cuff.
  16. 16. The absorbent article of any of the preceding claims, comprising a barrier leg cuff comprising, in order, a first spunbond nonwoven layer, a second spunbond nonwoven layer, a third meltblown nonwoven layer, a fourth meltblown nonwoven layer, a fifth meltblown nonwoven layer, and a sixth spunbond nonwoven layer.
  17. 17. The absorbent article of any of the preceding claims, comprising a barrier leg cuff comprising, in order, a first spunbond nonwoven layer, a second spunbond nonwoven layer, a third meltblown nonwoven layer, a fourth meltblown nonwoven layer, a fifth spunbond nonwoven layer.
  18. 18. The absorbent article according to any of the preceding claims, wherein the absorbent core is substantially free of cellulosic fibers, preferably free of cellulosic fibers.

Description

Absorbent article with improved fit and comfort Technical Field The present disclosure relates to absorbent articles having improved fit and comfort. Background The absorbent article is worn to absorb and contain body exudates of infants, toddlers, children, and even adults. In order to contain body exudates, it is important that the absorbent article have a good and comfortable fit around the waist and legs of the wearer. Front waist fit and leakage are one of the key areas of problem to be solved in absorbent articles. Furthermore, the barrier leg cuffs should be improved to provide comfort during wear while still providing excellent barrier function. Disclosure of Invention The introduction of elastic waist features such as waistbands or waist bands can help the front waist sagging and/or warping by better conforming to the wearer's abdomen, but still have an optimized room. In particular, longer (along the central longitudinal axis of the absorbent article) elastic front waist features that overlap other components in the front waist region (e.g., absorbent core, landing zone) can add additional stiffness to the front portion of the absorbent article and reduce the chance of sagging and/or warping. One aspect of providing stiffness to the front waist region as compared to an elastic waist feature having elastic strands is the use of an elastic waist feature having an elastic film. The elastic film may provide greater stiffness than the elastic strands and thereby reduce front waist sagging and/or warping. More specifically, the present disclosure provides for some overlap between a portion of the elastic waist feature, a portion of the landing zone, and a portion of the absorbent core in the front waist region to increase the stiffness of the front waist region. The present disclosure also provides improved barrier leg cuffs that provide comfort during wear while still providing excellent barrier function. Drawings The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of an exemplary form of the disclosure taken in conjunction with the accompanying drawings, wherein: FIG. 1 is a plan view of an exemplary absorbent article in the form of a taped diaper with the garment-facing surface facing the viewer in a flat-out state; FIG. 2 is a plan view of the exemplary absorbent article of FIG. 1 with the wearer-facing surface facing the viewer in a flat, unfolded state; FIG. 3 is a front perspective view of the absorbent article of FIGS. 1 and 2 in a fastened position; FIG. 4 is a front perspective view of an absorbent article in the form of a pant; FIG. 5 is a rear perspective view of the absorbent article of FIG. 4; FIG. 6 is a plan view of the absorbent article of FIG. 4, the absorbent article being laid flat with the garment-facing surface facing the viewer; FIG. 7 is a cross-sectional view of the absorbent article of FIG. 6 taken along line 7-7; FIG. 8 is a cross-sectional view of the absorbent article of FIG. 6 taken along line 8-8; FIG. 9 is a plan view of an exemplary absorbent core or absorbent article; FIG. 10 is a cross-sectional view of the absorbent core of FIG. 9 taken along line 10-10; FIG. 11 is a cross-sectional view of the absorbent core of FIG. 9 taken along line 11-11; FIG. 12 is a plan view of an exemplary absorbent article in the form of a taped diaper with the garment-facing surface facing the viewer in a flat-out state; FIG. 13 is an example of a front waist region of a taped absorbent article having an elastic waist feature, the wearer-facing surface facing the viewer; FIG. 14 is an example of a front waist region of a taped absorbent article with reduced sagging and/or warping of the front waist region, the wearer-facing surface facing the viewer; FIG. 15 is an example of a front waist region of a taped absorbent article with reduced sagging and/or warping of the front waist region, the wearer-facing surface facing the viewer; FIG. 16 is an example of a front waist region of a taped absorbent article with reduced sagging and/or warping of the front waist region, the wearer-facing surface facing the viewer; FIG. 17 is a cross-sectional view of FIG. 16 taken along line 17-17; FIG. 18 is an alternative cross-sectional view of FIG. 16 taken along line 18-18; Figure 19 is an exemplary cross-sectional view of the elastic waist feature taken along line 19-19 of figure 17. Figure 20 is an example of sagging and/or warping of the front waist region of comparative example 1 when loaded with 180mL of saline solution; Figure 21 is an example of a front waist region of an embodiment of the present disclosure without sagging and/or warping or sagging and/or warping reduction when loaded with 180mL of saline solution; FIG. 22 is an exemplary cross-sectional view of the nonwoven material of the barrier leg cuff of FIG. 16 taken alo