Method and apparatus for applying an elastic material to a moving substrate in a curved path
AssigneeThe Procter & Gamble Company
InventorsDarrell Ian Brown, John Andrew Strasemeier
Life of this patent
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Abstract
Aspects of the methods and apparatuses relate to making elastic laminates, and more particularly, methods and apparatuses for applying elastic material in a curved path onto an advancing substrate. The elastic material may be in various forms, such as for example, elastic strands and/or ribbons. Apparatuses and methods disclosed herein may also provide for the application of viscous fluids, such as adhesives, in pre-determined patterns to the elastic material while being positioned on an advancing substrate.
Claims16
A method for applying an elastic material along a curved path to a substrate, the method comprising the steps of:
- advancing a substrate to a substrate carrier, the substrate having a first surface disposed opposite of a second surface;
- engaging the first surface of the substrate with the substrate carrier, the substrate carrier comprising:
- a non-compliant support surface and a pattern element, the pattern element including a pattern surface, the substrate carrier positioned adjacent a slot die applicator to define a nip between the pattern surface of the pattern element and the slot die applicator;
- positioning an elastic material on the second surface of the substrate;
- advancing the second surface of the substrate and the elastic material in a machine direction through the nip while moving the elastic material in a cross direction substantially transverse to the machine direction;
- and
- intermittently deflecting the pattern surface toward the non-compliant support surface by advancing the substrate and the elastic material through the nip.
A method for applying an elastic material along a curved path to a substrate, the method comprising the steps of:
- advancing a substrate to a substrate carrier, the substrate having a first surface disposed opposite of a second surface;
- engaging the first surface of the substrate with the substrate carrier, the substrate carrier comprising:
- a pattern element including a pattern surface, wherein the substrate carrier is positioned adjacent a slot die applicator to define a nip between the pattern surface of the pattern element and the slot die applicator;
- advancing an elastic material in a machine direction through the nip;
- deflecting the elastic material in a cross direction substantially transverse to the machine direction while the elastic material is advancing through the nip;
- positioning the elastic material on the second surface of the substrate;
- discharging adhesive from the slot die applicator onto the second surface of the substrate and the elastic material while advancing through the nip;
- and
- intermittently deflecting the pattern surface away from slot die applicator by advancing the substrate and the elastic material through the nip.
Dependencies are inferred from the claim text.