06.02.23
Todd Douglas Lenser, Liberty Township, OH; Urmish Popatlal Dalal, Milford, OH; Uwe Schneider, Cincinnati, OH; Todd Joseph Statt, Kings Mills, OH; Joerg Mueller, Alte Haingasse, Germany; and Melanie Acevedo, Springfield Township, OH.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 4/14/22
Issued: 4/4/23
A method for assembling elastic laminates, the method comprising: 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 an elastic film comprising a stretched central region, a first edge region, and a second edge region, wherein the stretched central region is between the first edge region and the second edge region, and wherein at least a portion of the first edge region and the second edge region are unstretched forming an unstretched region; positioning the stretched central region in contact with the second surface of the first substrate; 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, 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 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 in the first bonding region; and applying a second plurality of ultrasonic bonds to the elastic laminate in the second bonding region, bonding the unstretched region to at least one of the first substrate and the second substrate.
Assigned to The Procter & Gamble Company, Cincinnati, OH.
Filed: 4/14/22
Issued: 4/4/23
A method for assembling elastic laminates, the method comprising: 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 an elastic film comprising a stretched central region, a first edge region, and a second edge region, wherein the stretched central region is between the first edge region and the second edge region, and wherein at least a portion of the first edge region and the second edge region are unstretched forming an unstretched region; positioning the stretched central region in contact with the second surface of the first substrate; 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, 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 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 in the first bonding region; and applying a second plurality of ultrasonic bonds to the elastic laminate in the second bonding region, bonding the unstretched region to at least one of the first substrate and the second substrate.