Manufacturing method of structural parts for wearing products

Details Manufacturing method of structural parts for wearing products Manufacturing method of structural parts for wearing products

A - Human Necessities

61

F

223/6

A61F 13/15 (2006.01) B31D 1/04 (2006.01)

Patent

CA 2015091

This invention concerns a manufacturing method of the structural parts for wearing products. More specifically, it concerns a manufacturing method of the structural parts of disposable diapers, baby training pants, or other wearing products. A concavoconvex cutting line is applied repetitively in a periodical way in the longitudinal direction of a continuous first web to form the first and the second partial webs; the said first partial web is offset with respect to he said second partial web in the longitudinal direction by a prescribed interval, so that the concave edges and the convex edges of the first and second partial webs are positioned opposite and aligned to each other, respectively. A continuous second web is used to connect the outside edges opposite to the said aligned concave and convex edge portions of the first and second partial webs; as the second web is bonded with the outside edges of the partial webs, a composite web is formed; the first and second partial webs of the composite web are spread to the outer sides.

Procédé de fabrication d'éléments structuraux de produits à porter, plus précisément un procédé de fabrication d'éléments structuraux, par exemple pour couches jetables et culottes de propreté. Une ligne de coupe concavo-convexe est imprimée plusieurs fois à intervalles réguliers dans le sens de la longueur d'une première bande continue pour former une première et une deuxième bande continue partielle dans le sens de la longueur, à intervalles prescrits. La première bande continue partielle dévie par rapport à la deuxième bande continue partielle à intervalles réguliers, de manière que les bords concaves et les bords convexes de la première et de la deuxième bande continue partielle sont opposés et alignés l'un par rapport à l'autre. Une deuxième bande continue relie les bords extérieurs opposés des parties concaves et convexes alignées de la première et de la deuxième bande continue partielle. En liant la deuxième bande continue aux bords extérieurs des bandes continues partielles, on obtient une bande continue composite. La première et la deuxième bande continue partielle de la bande continue composite sont étendues en direction des côtés extérieurs.

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