EASILY WEARABLE DIAPER FOR INFANT IN STANDING POSTURE

摘要

PURPOSE: Provided is a developing type disposable diaper which is easily wearable for an infant in a standing posture and is excellent in absorptivity and leak-proof performance. CONSTITUTION: The diaper is constituted that the smallest width of the inside leg part is 100-240 mm. The ratio(W1/W2) of a distance(W1) between the both fixed end of a pair of stereoscopic gathers and a distance(W2) between both elastic members positioned most outside of both leg gathers is 0.67-0.81. A distance(W3) from the fixed end of a stereoscopic gather to the elastic member positioned at the most outside of a leg gather is made shorter than height of the stereoscopic gather. The stereoscopic gather is placed in the diaper at an expansion rate higher than 100% so that a load under an effective expansion rate reduced by 30% from an expansion rate in a diaper fitting condition is 20-120 gf and a tensile load increasing rate from 20% of an expansion rate to the effective expansion rate is not higher than 1.0(gf/%) when the diaper is expanded under a non-fixed condition. Thus, the diaper is be fit on the infant in the standing posture.