Patent ID: 9682392
Date: 2017-06-20
CPC Classifications: A61F,B05B,B05C,B32B

Claim:
1. A method of dispensing adhesive onto a stretched elastic strand during the manufacturing of personal disposable hygiene products, the method comprising: moving the stretched elastic strand in a machine direction; delivering a first adhesive stream from a first adhesive supply and a second adhesive stream from a second adhesive supply through a module and into a dispensing nozzle, the first and second adhesive streams remaining separate during movement through the module and into the nozzle; controlling flow of the first and second adhesive streams to cause dispensing of adhesive at the nozzle, the dispensing further including: contacting the stretched elastic strand with first and second substrate layers to adhesively secure the elastic strand with the volumes of adhesive between the first and second substrate layers and to form a bond therebetween; and releasing the stretched elastic strand to allow the elastic strand to retract from its stretched condition, thereby collectively defining an elasticized portion of the hygiene product with the first and second substrate layers, the first and third portions of the elastic strand defining opposing ends of the elastic strand, and the second portion of the elastic strand defining a central portion of the elastic strand extending between the opposing ends, when the elastic strand is secured between the first and second substrate layers, and the first and third volumes of adhesive limiting movement of the opposing ends of the elastic strand relative to the first and second substrate layers while maintaining the bond, and the second volume of adhesive being sufficiently low to allow the elastic strand to retract from its stretched condition.