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Methods and Apparatuses for Making Elastomeric Laminates with Elastic Strands Unwound from Spools on

U.S. Patent No. 10,966,873

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By: Karen McIntyre

Editor, Nonwovens Industry

Uwe Schneider, Cincinnati, OH; and Joseph Allen Eckstein, Sunman, IN.
Assigned to The Procter & Gamble Company, Cincinnati, OH.

Filed: 12/19/17
Issued: 4/6/21

A method for making an elastomeric laminate, the method comprising steps of: providing first spools, each first spool comprising an outer circumferential surface defined by an elastic strand wound onto a core; positioning the outer circumferential surface of each first spool in rolling contact with a first roll; providing second spools, each second spool comprising an outer circumferential surface defined by an elastic strand wound onto a core; positioning the outer circumferential surface of each second spool in rolling contact with a second roll; unwinding elastic strands from the first spools by advancing the elastic strands from between each first spool and the first roll; stretching the elastic strands from the first spools, wherein the elastic strands from the first spools comprise first elastic strands and second elastic strands; bonding the stretched first elastic strands and stretched second elastic strands from the first spools with and between a first substrate and a second substrate to form an elastomeric laminate, wherein the elastomeric laminate comprises a first region having a first stretch characteristic defined by the first elastic strands and a second region having a second stretch characteristic defined by the second elastic strands, wherein the first stretch characteristic is different from the second stretch characteristic; unwinding elastic strands from the second spools by advancing the elastic strands from between each second spool and the second roll; connecting the elastic strands from the second spools with a splicer member; combining the splicer member and the elastic strands from the second spools with the elastic strands from the first spools between the first and second substrates; and subsequently discontinuing unwinding of the elastic strands from the first spools.

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