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US 10,882,294 B2Granted
Elastic non-woven lamination method and apparatus
AssigneeBerry Global, Inc.
InventorJeffrey A. Middlesworth
Life of this patent
Estimating the term…
Abstract
A lamination system includes a film supply, a non-woven material supply, and a laminator. The laminator causes a film from the film supply to be laminated to a sheet from the non-woven material supply to establish a laminated sheet.
Claims20
A lamination system comprising:
- a stretcher unit including a cutter and one or more stretcher rolls located downstream of the cutter;
- wherein the cutter separates a web of elastic material into a plurality of strips;
- a means for placing each of the plurality of strips into a spaced-apart lateral position relative to one another;
- and
- a laminator configured to receive and bond the plurality of strips with a non-woven backing web to form a laminate sheet;
- wherein the one or more stretcher rolls are configured to elongate the web of elastic material or the plurality of strips to form an internal retraction force therein;
- wherein the laminator is configured to bond the plurality of strips to the non-woven backing web while the plurality of strips are elongated;
- wherein the laminator includes a support roll configured to receive the plurality of strips and the non-woven backing web, and an ultrasonic welder configured to couple the plurality of strips to the non-woven backing web using ultrasonic energy;
- wherein the support roll includes a support-roll body configured to rotate and a bonding surface formed on the support-roll body configured to cooperate with the ultrasonic welder to focus the ultrasonic energy and bond the plurality of strips to the non-woven backing web.
6 more elements
A lamination system comprising:
- a stretcher unit including a cutter and one or more stretcher rolls located downstream of the cutter;
- wherein the cutter separates a web of elastic material into a plurality of strips;
- a means for placing each of the plurality of strips into a spaced-apart lateral position relative to one another;
- and
- a laminator located downstream of the one or more stretcher rolls and configured to receive and bond the plurality of strips with a non-woven backing web to form a laminate sheet;
- wherein the one or more stretcher rolls are configured to elongate the web of elastic material or the plurality of strips to form an internal retraction force therein;
- wherein the laminator is configured to bond the plurality of strips to the non-woven backing web while the plurality of strips are elongated;
- wherein the laminator includes a support roll configured to receive the plurality of strips and the non-woven backing web, and an ultrasonic welder configured to couple the plurality of strips to the non-woven backing web using ultrasonic energy;
- and,
- wherein one or more of the one or more stretcher rolls comprises a roller body and a plurality of curved fingers coupled to the roller body to move therewith and each curved finger is arranged to curve outwardly in the direction of rotation of the roller body.
7 more elements
A lamination system comprising:
- a stretcher unit including a cutter and one or more stretcher rolls wherein the cutter separates a web of elastic material into a plurality of strips;
- a means for placing each of the plurality of strips into a spaced-apart lateral position relative to one another;
- and
- a laminator configured to receive and bond the plurality of strips with a non-woven backing web to form a laminate sheet;
- wherein the one or more stretcher rolls are configured to elongate the web of elastic material or the plurality of strips to form an internal retraction force therein;
- wherein the laminator is configured to bond the plurality of strips to the non-woven backing web while the plurality of strips are elongated;
- wherein the laminator includes a support roll configured to receive the plurality of strips and the non-woven backing web, and an ultrasonic welder configured to couple the plurality of strips to the non-woven backing web using ultrasonic energy;
- wherein the support roll includes a support-roll body configured to rotate and a bonding surface formed on the support-roll body configured to cooperate with the ultrasonic welder to focus the ultrasonic energy and bond the strips to the non-woven backing web.
5 more elements
Dependencies are inferred from the claim text.