Manufacturing method of disposable diapers and disposable diapers

A increase the strength of the waist holding portion for holding the waist of the wearer, to provide a disposable diaper capable of preventing breakage at the time and when worn worn. A disposable diaper 10, the skin surface side sheet 50 disposed on the skin contact surface side of the wearer, and the non-skin face side sheet 60 disposed on the non-skin contact surface side, the absorber 40 comprises a waist holding portion for holding the disposable diaper to the wearer's body, the leg stretch unit 75, the. Leg stretch unit, rather than a diaper end portion constituting the outer periphery of the disposable diaper is disposed in the product longitudinal direction inside or product width direction inner side, the first region R1 and the leg stretch of products longitudinally outward from the leg stretch unit than said at least one the product width direction outer side of the second region R2, is disposed a portion of the waistline holding portion, and the skin face side sheet and a non-skin face side sheet and the bonding region 65 is a diaper end joined BACKGROUND OF is provided continuously along the section 1