PROBLEM TO BE SOLVED: To provide a disposable diaper for pets which fit around a waist of a pet in an excellent manner.SOLUTION: A disposable, pants-type diaper for pets includes: a waist region 110: a crotch region 120 a waist opening 131 a pair of leg openings 140 an absorbent core 160 a tail insertion opening 150 and a waist expanding and contracting elastic member 172 arranged in the waist region 110 in a stretched state. In the waist region 110, a plurality of regions in which the waist expanding and contracting elastic members 172 are disposed are provided, and a first expanding and contracting part region 181 and a second expanding and contracting part region 182 that has an expansion and contraction stress that is lower than the first expanding and contracting part region 181 are formed.COPYRIGHT: (C)2015,JPO&INPIT【課題】ペットの胴周りに対し良好にフィットするペット用使い捨ておむつを提供する。【解決手段】胴周り領域110と、股下領域120と、胴周り開口131と、一対の脚周り開口140と、吸収性コア160と、尻尾挿通開口150と、胴周り領域110に伸長状態にて配置された胴周り用伸縮性弾性部材172とを有し、胴周り領域110は、胴周り用伸縮性弾性部材172が配置されている領域を複数有するとともに、第1伸縮部分領域181と、当該第1伸縮部分領域181よりも伸縮応力が低い第2伸縮部分領域182とが形成されている【選択図】図3
