Patent ID: 8012296
Filing Date: 2011-09-06
Classification: A61F,Y10T

Abstract:
1. A process of continuously making disposable wearing articles, said process comprising the steps of: continuously feeding, in a machine direction, a first web having opposite first and second surfaces, first and second side edges extending in parallel to each other in said machine direction, and a predetermined first width in a cross direction orthogonal to said machine direction; continuously feeding, in said machine direction, a second web having opposite third and fourth surfaces, a second width larger than the first width, third and fourth side edges extending in parallel to each other in said machine direction, wherein said third surface faces said first surface, said third and fourth side edges are adjacent said first and second side edges, respectively, and said first surface is placed upon and bonded to a middle zone of said third surface as viewed in said cross direction to form a composite web which is continuously fed in the machine direction; on said second surface of said first web or on said fourth surface of said second web in said composite web, forming a pair of first fasteners on both sides, as viewed in said machine direction, of a region to be formed with a cutting line so that said first fasteners are positioned between said first and second side edges and in a vicinity of said first side edge; between said region to be formed with said cutting line and respective said first fasteners, forming in said composite web a pair of slits extending in said cross direction beyond opposite ends of said first fasteners as viewed in said cross direction but without extending to said third and fourth side edges, wherein said slits are located on opposite sides, as viewed in said machine direction, of said region to be formed with said cutting line; attaching a fastener base sheet strip having a pair of second fasteners thereon to said composite web, wherein said fastener base sheet strip extends in said machine direction across said region to be formed with said cutting line and both said slits, and said second fasteners are detachably engaged with said first fasteners, respectively, on both sides of said region to be formed with said cutting line; forming in said composite web a notch extending from the third side edge to intersect both said slits; cutting away a section surrounded by at least said slits and said notch from said composite web and then folding portions of said second web located between said third and first side edges and between said fourth and second side edges along said first and second side edges, respectively, onto said second surface of said first web and bonding these portions to said second surface, wherein the cut away section is removed from beneath the fastener base sheet strip to form a gap between the pair of the first fasteners of the respective, successive diapers to be made along the first and third side edges, while maintaining the successive diapers in a connected state along the second and fourth side edges; subsequently to said step of folding of said portions, folding said composite web in said cross direction with said first and second side edges falling in line, wherein one of said second surface of said first web and said fourth surface of said second web, not provided with said first fasteners, lies inside; in a vicinity of said second side edge, bonding said composite web folded in two to said fastener base sheet strip in a bonding area of the region to be formed with said cutting line and between said slits; and subsequently to said bonding step, cutting said composite web together with said fastener base sheet strip along said cutting line, between said slits and through said bonding area.