PROBLEM TO BE SOLVED: To provide a disposable diaper for a pet that hardly causes the leakage of a discharge.SOLUTION: A disposable diaper for a pet 100 is formed of: a diaper body 200 which includes a trunk area 210, a crotch area 220, a diaper body inside area 200Z1, a diaper body outside area 200Z2, a first absorbent core 230, and a tail insertion opening 240 and an auxiliary body 300 which is detachably arranged in the diaper body inside area 200Z1 and includes a second absorbent core 310. A laminated absorbent core area 110 is formed by having a prescribed area of the first absorbent core 230 and a prescribed area of the second absorbent core 310 overlap each other and the laminated absorbent core area 110 forms a high rigidity area 120.COPYRIGHT: (C)2015,JPO&INPIT【課題】 排泄物の漏れが生じにくいペット用使い捨ておむつを提供する。【解決手段】ペット用使い捨ておむつ100は、胴周り領域210と、股下領域220と、おむつ本体内側領域200Z1と、おむつ本体外側領域200Z2と、第1吸収性コア230と、尻尾挿通開口240と、を有するおむつ本体200と、おむつ本体内側領域200Z1に着脱自在に配置されるとともに、第2吸収性コア310を有する補助体300と、により形成され、第1吸収性コア230の所定領域と第2吸収性コア310の所定領域が重ねられて積層吸収性コア領域110を形成し、積層吸収性コア領域110は、高剛性領域120を形成する。【選択図】 図1
