IP Library Granted Patent US 12678345
Granted Patent B2
US 12678345 · App. 18/173,932 · Granted Jul 14, 2026

Absorbent article for pet

Inventors: Daisuke Komatsubara (Kanonji, JP); Yumi Matsumoto (Kanonji, JP)
Assignee: Unicharm Corporation
A61F13/5116A01K23/00A61F2013/15186
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12678345
App. No.
18/173,932
Granted
Jul 14, 2026
Kind
B2
Abstract

An absorbent article for a pet includes: a liquid absorber disposed between a liquid-permeable top sheet and a liquid-impermeable back surface layer; a first leakage suppressing portion including a first joining portion that is joined to the liquid-permeable top sheet and a first rising portion that is not joined to the liquid-permeable top sheet; and a second leakage suppressing portion including a second joining portion that is joined to the liquid-permeable top sheet and a second rising portion that is not joined to the liquid-permeable top sheet. The first and second leakage suppressing portions are disposed on a side of the liquid-permeable top sheet along a longitudinal direction on two widthwise sides of the absorbent article. A longitudinal contracting force in the second rising portion is smaller than a longitudinal contracting force in the first rising portion.

Claims (115)

1 . An absorbent article for a male pet, comprising:

a liquid-permeable top sheet;

a liquid-impermeable back surface layer;

a liquid absorber disposed between the liquid-permeable top sheet and the liquid-impermeable back surface layer;

a first leakage suppressing portion including:

a first joining portion that is joined to the liquid-permeable top sheet; and

a first rising portion that is not joined to the liquid-permeable top sheet, the first rising portion including:

a first suppressing portion main body having a hydrophobic nonwoven fabric; and

one or more first elastic members attached in a longitudinal direction of the first suppressing portion main body;

a second leakage suppressing portion including:

a second joining portion that is joined to the liquid-permeable top sheet; and

a second rising portion that is not joined to the liquid-permeable top sheet, the second rising portion including:

a second suppressing portion main body having a hydrophobic nonwoven fabric; and

one or more second elastic members attached in a longitudinal direction of the second suppressing portion main body; and

a locking portion that connects the liquid-permeable top sheet and the liquid-impermeable back surface layer at two longitudinal end portions such that the absorbent article fully wraps around an entire waist of the male pet, wherein

the absorbent article is configured such that a longitudinal direction of the absorbent article extends along the waist of the male pet wearing the absorbent article,

the first leakage suppressing portion and the second leakage suppressing portion are both disposed on a side of the liquid-permeable top sheet along the longitudinal direction on two widthwise sides of the absorbent article,

a longitudinal contracting force in the second rising portion is smaller than a longitudinal contracting force in the first rising portion,

a first distance from an end of the first joining portion to an inner end of the first rising portion is longer than a second distance from an end of the second joining portion to an inner end of the second rising portion,

the first distance is longer than a third distance from a widthwise head side end of the liquid absorber to the end of the first joining portion,

a fourth distance from a widthwise bottom side end of the liquid absorber to the end of the second joining portion is longer than the second distance, and

a sum of the first distance and the third distance is greater than a sum of the second distance and the fourth distance.

2 . The absorbent article according to claim 1 , wherein

a total number of the one or more second elastic members is smaller than a total number of the one or more first elastic members.

3 . The absorbent article according to claim 2 , wherein

two short sides of the second suppressing portion main body are joined to the liquid-permeable top sheet,

one of two long sides of the second suppressing portion main body is positioned on an outer peripheral side of the liquid-permeable top sheet and is joined to the liquid-permeable top sheet and the liquid-impermeable back surface layer, and

the other of the two long sides is positioned on an inner peripheral side of the liquid-permeable top sheet and is not joined to the liquid-permeable top sheet.

4 . The absorbent article according to claim 1 , wherein the second rising portion has a narrow portion having a narrower width in a central part of a longitudinal direction of the second rising portion.

5 . The absorbent article according to claim 1 , wherein

a flap portion extends in a longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is disposed on a widthwise outermost side of the liquid-permeable top sheet and the liquid-impermeable back surface layer,

the liquid-permeable top sheet and the liquid-impermeable back surface layer are folded back,

the flap portion faces the liquid-permeable top sheet,

the liquid-permeable top sheet and the liquid-impermeable back surface layer wrap the second rising portion inside, and

a fold line extends in the longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and overlaps the second rising portion.

6 . The absorbent article according to claim 1 , wherein

a flap portion extends in a longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is disposed on a widthwise outermost side of the liquid-permeable top sheet and the liquid-impermeable back surface layer,

the liquid-permeable top sheet and the liquid-impermeable back surface layer are folded back,

the flap portion faces the liquid-permeable top sheet,

the liquid-permeable top sheet and the liquid-impermeable back surface layer wrap the second rising portion inside, and

a fold line extends in the longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is positioned on an inner peripheral side of the liquid-permeable top sheet with respect to the second rising portion.

7 . The absorbent article according to claim 1 , wherein

the first leakage suppressing portion has, at two longitudinal end portions, third joining portions that join the first leakage suppressing portion with the liquid-permeable top sheet, and

a distance from one of the third joining portions to an end of the first rising portion is shorter than a distance from the second joining portion to an end of the second rising portion in a width direction of the absorbent article orthogonal to the longitudinal direction.

8 . The absorbent article according to claim 1 , wherein the liquid absorber protrudes toward a direction of the second leakage suppressing portion.

9 . The absorbent article according to claim 1 , wherein

the liquid-impermeable back surface layer has a color change portion that reacts with a liquid and changes a color, and

the color change portion is disposed on a second joining portion side with respect to a central position between the first joining portion and the second joining portion.

10 . The absorbent article according to claim 1 , wherein the locking portion is disposed on the liquid-impermeable back surface layer.

11 . The absorbent article according to claim 1 , wherein

the liquid-impermeable back surface layer has a mark portion that indicates a position of a longitudinal end of the liquid-impermeable back surface layer disposed on an outer side in a state of being fixed in a cylindrical shape by the locking portion,

the mark portion has a first mark portion positioned on a widthwise head side of the liquid-impermeable back surface layer, and a second mark portion positioned on a widthwise bottom side of the liquid-impermeable back surface layer, and

the second mark portion is positioned on a longitudinal inner side with respect to the first mark portion.

12 . The absorbent article according to claim 1 , wherein a widthwise center of the locking portion is at a second joining portion side with respect to a central position between the first joining portion and the second joining portion.

13 . The absorbent article according to claim 1 , wherein the locking portion includes a first stiffness region and a second stiffness region having a lower stiffness than the first stiffness region.

14 . The absorbent article according to claim 13 , wherein

the locking portion is disposed in a width direction of the liquid-impermeable back surface layer, and

the first stiffness region is positioned on a widthwise head side.

15 . An absorbent article for a male pet, comprising:

a liquid-permeable top sheet;

a liquid-impermeable back surface layer;

a liquid absorber disposed between the liquid-permeable top sheet and the liquid-impermeable back surface layer;

a first leakage suppressing portion including:

a first joining portion that is joined to the liquid-permeable top sheet; and

a first rising portion that is not joined to the liquid-permeable top sheet, the first rising portion including:

a first suppressing portion main body having a hydrophobic nonwoven fabric; and

one or more first elastic members attached in a longitudinal direction of the first suppressing portion main body;

a second leakage suppressing portion including:

a second joining portion that is joined to the liquid-permeable top sheet; and

a second rising portion that is not joined to the liquid-permeable top sheet, the second rising portion including:

a second suppressing portion main body having a hydrophobic nonwoven fabric; and

one or more second elastic members attached in a longitudinal direction of the second suppressing portion main body; and

a locking portion that connects the liquid-permeable top sheet and the liquid-impermeable back surface layer at two longitudinal end portions such that the absorbent article fully wraps around an entire waist of the male pet, wherein

the absorbent article is configured such that a longitudinal direction of the absorbent article extends along the waist of the male pet wearing the absorbent article,

the first leakage suppressing portion and the second leakage suppressing portion are both disposed on a side of the liquid-permeable top sheet along the longitudinal direction on two widthwise sides of the absorbent article,

a longitudinal contracting force in the second rising portion is smaller than a longitudinal contracting force in the first rising portion,

a first distance from an end of the first joining portion to an inner end of the first rising portion is longer than a second distance from an end of the second joining portion to an inner end of the second rising portion,

the first distance is longer than a third distance from a widthwise head side end of the liquid absorber to the end of the first joining portion,

the third distance is longer than a fourth distance from a widthwise bottom side end of the liquid absorber to the end of the second joining portion, and

a sum of the first distance and the third distance is greater than a sum of the second distance and the fourth distance.

16 . The absorbent article according to claim 15 , wherein a total number of the one or more second elastic members is smaller than a total number of the one or more first elastic members.

17 . The absorbent article according to claim 15 , wherein

two short sides of the second suppressing portion main body are joined to the liquid-permeable top sheet,

one of two long sides of the second suppressing portion main body is positioned on an outer peripheral side of the liquid-permeable top sheet and is joined to the liquid-permeable top sheet and the liquid-impermeable back surface layer, and

the other of the two long sides is positioned on an inner peripheral side of the liquid-permeable top sheet and is not joined to the liquid-permeable top sheet.

18 . The absorbent article according to claim 15 , wherein the second rising portion has a narrow portion having a narrower width in a central part of a longitudinal direction of the second rising portion.

19 . The absorbent article according to claim 15 , wherein

a flap portion extends in a longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is disposed on a widthwise outermost side of the liquid-permeable top sheet and the liquid-impermeable back surface layer,

the liquid-permeable top sheet and the liquid-impermeable back surface layer are folded back,

the flap portion faces the liquid-permeable top sheet,

the liquid-permeable top sheet and the liquid-impermeable back surface layer wrap the second rising portion inside, and

a fold line extends in the longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and overlaps the second rising portion.

20 . The absorbent article according to claim 15 , wherein

a flap portion extends in a longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is disposed on a widthwise outermost side of the liquid-permeable top sheet and the liquid-impermeable back surface layer,

the liquid-permeable top sheet and the liquid-impermeable back surface layer are folded back,

the flap portion faces the liquid-permeable top sheet,

the liquid-permeable top sheet and the liquid-impermeable back surface layer wrap the second rising portion inside, and

a fold line extends in the longitudinal direction of the liquid-permeable top sheet and the liquid-impermeable back surface layer, and is positioned on an inner peripheral side of the liquid-permeable top sheet with respect to the second rising portion.

21 . The absorbent article according to claim 15 , wherein

the first leakage suppressing portion has, at two longitudinal end portions, third joining portions that join the first leakage suppressing portion with the liquid-permeable top sheet, and

a distance from one of the third joining portions to an end of the first rising portion is shorter than a distance from the second joining portion to an end of the second rising portion in a width direction of the absorbent article orthogonal to the longitudinal direction.

22 . The absorbent article according to claim 15 , wherein the liquid absorber protrudes toward a direction of the second leakage suppressing portion.

23 . The absorbent article according to claim 15 , wherein

the liquid-impermeable back surface layer has a color change portion that reacts with a liquid and changes a color, and

the color change portion is disposed on a second joining portion side with respect to a central position between the first joining portion and the second joining portion.

24 . The absorbent article according to claim 15 , wherein the locking portion is disposed on the liquid-impermeable back surface layer.

25 . The absorbent article according to claim 15 , wherein

the liquid-impermeable back surface layer has a mark portion that indicates a position of a longitudinal end of the liquid-impermeable back surface layer disposed on an outer side in a state of being fixed in a cylindrical shape by the locking portion,

the mark portion has a first mark portion positioned on a widthwise head side of the liquid-impermeable back surface layer, and a second mark portion positioned on a widthwise bottom side of the liquid-impermeable back surface layer, and

the second mark portion is positioned on a longitudinal inner side with respect to the first mark portion.

26 . The absorbent article according to claim 15 , wherein a widthwise center of the locking portion is at a second joining portion side with respect to a central position between the first joining portion and the second joining portion.

27 . The absorbent article according to claim 15 , wherein the locking portion includes a first stiffness region and a second stiffness region having a lower stiffness than the first stiffness region.

28 . The absorbent article according to claim 27 , wherein

the locking portion is disposed in a width direction of the liquid-impermeable back surface layer, and

the first stiffness region is positioned on a widthwise head side.