Disposable diapers with unitary waistshield and elastically expansible waistbands

摘要

Disposable diapers having liquid impermeable waistshields and elastically expansible waistbands. The waistshields and waistbands are formed of a single-unitary-liquid impermeable material. In preferred embodiments, the waistshield/waistband is formed of a material which has a heat unstable state and a heat stable and elastic state. In diapers ready for use, the waistband portion is relatively more heat stable and elastic than the waistshield portion.