04.03.20
Todd Douglas Lenser, Liberty Township, OH; Urmish Popatlal Dalal, Milford, OH; Uwe Schneider, Cincinnati, OH; Todd Joseph Statt, Kings Mill, OH; Joerg Mueller, Alte Haingasse, Germany; and Melanie Acevedo, Springfield Township, OH.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 8/11/17
Issued: 3/3/20
A method for assembling elastic laminates, the method comprising steps of: providing a first substrate and a second substrate, the first substrate and the second substrate each comprising a first surface and an opposing second surface, a first longitudinal edge and a second longitudinal edge separated from the first longitudinal edge to define a width in a cross direction; providing a first elastic film and a second elastic film, each of the first elastic film and the second elastic film comprising an unstretched first edge region and an unstretched second edge region separated from the unstretched first edge region in the cross direction by a stretched central region; positioning the stretched central region of the first elastic film in contact with the second surface of the first substrate; positioning the stretched central region of the second elastic film in contact with the second surface of the first substrate, and wherein the unstretched second edge region of the second elastic film is separated from the unstretched first edge region of the first elastic film in a cross direction; forming an elastic laminate by advancing the second substrate in a machine direction to position the first surface of the second substrate in contact with the stretched central regions of the first and second elastic films, wherein the elastic laminate comprises a first bonding region and a second bonding region, wherein the first bonding region is defined where the stretched central region of the first elastic film is in direct contact with the second surface of the first substrate and the first surface of the second substrate, and wherein the second bonding region is positioned completely outside the first bonding region; applying a first plurality of ultrasonic bonds to the elastic laminate to define a first bond density in the first bonding region; applying a second plurality of ultrasonic bonds to the elastic laminate to define a second bond density in the second bonding region, wherein the first bond density is not equal to the second bond density, or wherein the first bond density is equal to the second bond density and wherein at least one of the first plurality of ultrasonic bonds comprises a shape that is different from a shape of at least one of the second plurality of ultrasonic bonds; and cutting the elastic laminate along the machine direction between the first elastic film and the second elastic film into a first elastic laminate and a second elastic laminate.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 8/11/17
Issued: 3/3/20
A method for assembling elastic laminates, the method comprising steps of: providing a first substrate and a second substrate, the first substrate and the second substrate each comprising a first surface and an opposing second surface, a first longitudinal edge and a second longitudinal edge separated from the first longitudinal edge to define a width in a cross direction; providing a first elastic film and a second elastic film, each of the first elastic film and the second elastic film comprising an unstretched first edge region and an unstretched second edge region separated from the unstretched first edge region in the cross direction by a stretched central region; positioning the stretched central region of the first elastic film in contact with the second surface of the first substrate; positioning the stretched central region of the second elastic film in contact with the second surface of the first substrate, and wherein the unstretched second edge region of the second elastic film is separated from the unstretched first edge region of the first elastic film in a cross direction; forming an elastic laminate by advancing the second substrate in a machine direction to position the first surface of the second substrate in contact with the stretched central regions of the first and second elastic films, wherein the elastic laminate comprises a first bonding region and a second bonding region, wherein the first bonding region is defined where the stretched central region of the first elastic film is in direct contact with the second surface of the first substrate and the first surface of the second substrate, and wherein the second bonding region is positioned completely outside the first bonding region; applying a first plurality of ultrasonic bonds to the elastic laminate to define a first bond density in the first bonding region; applying a second plurality of ultrasonic bonds to the elastic laminate to define a second bond density in the second bonding region, wherein the first bond density is not equal to the second bond density, or wherein the first bond density is equal to the second bond density and wherein at least one of the first plurality of ultrasonic bonds comprises a shape that is different from a shape of at least one of the second plurality of ultrasonic bonds; and cutting the elastic laminate along the machine direction between the first elastic film and the second elastic film into a first elastic laminate and a second elastic laminate.
