Patent ID: 8858749
Filing Date: 2014-10-14
Classification: A61F,Y10T

Abstract:
1. A method for making a disposable diaper which comprises a composite web including a first web, a second web laminated with and bonded to said first web and a continuous elastic sandwiched and bonded between said first web and said second web in a curved pattern, wherein said first web has a first surface, a second surface opposed to said first surface, a first side edge extending in a machine direction and a second side edge opposed to and spaced from said first side edge in a cross direction orthogonal to said machine direction, said method comprising the steps of: (A) coating said first surface of said first web with an adhesive to define an adhesion region extending from said first side edge toward said second side edge in said cross direction and a non-adhesion region extending along said second side edge in said machine direction; (B) rocking said continuous elastic by a rocker arm in said cross direction and thereby laying said continuous elastic on said first surface of said first web in said curved pattern such that said continuous elastic has crest-segments each curving convexly toward said first side edge, trough-segments each defined between a pair of adjacent said crest-segments and curving concavely from said first side edge and intermediate segments connecting said crest-segments to said trough-segments; (C) attaching said continuous elastic by only said crest-segments and said intermediate segments to said first surface of said first web in said adhesion region by a first pressure roll; (D) superimposing and bonding together said first web and said second web by a second pressure roll; and (E) bonding a continuous auxiliary sheet intersecting with said intermediate segments of said continuous elastic and extending in said machine direction on said first surface of said first web with an adhesive line coated on the surface of said continuous auxiliary sheet facing said first surface of said first web.