Patent ID: 9034425
Filing Date: 2015-05-19
Classification: A61F,B05C,B05D,B32B

Abstract:
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; applying a first volume of adhesive onto a first portion of the elastic strand; applying a second volume of adhesive onto a second portion of the elastic strand located downstream from the first portion of the elastic strand relative to the machine direction; applying a third volume of adhesive onto a third portion of the elastic strand located downstream from the second portion of the elastic strand relative to the machine direction, wherein the second volume of adhesive is less than each of the first volume of adhesive and the third volume of adhesive; contacting the stretched elastic strand having the first, second, and third volumes of adhesive thereon with first and second substrate layers to adhesively secure the stretched elastic strand 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; wherein the first and third portions of the elastic strand defining opposing ends of the elastic strand when secured between the first and second substrate layers, and the second portion of the elastic strand defining a central portion of the elastic strand extending between the opposing ends when secured between the first and second substrate layers; and wherein the first and third portions of the elastic strand collectively define a first length and the second portion of the elastic strand defines a second length larger than the first length such that the second volume of adhesive is applied over a majority of the elastic strand, which results in the first and third volumes of adhesive being sufficient to limit movement of the opposing ends of the elastic strand while maintaining the bond and the second volume of adhesive being sufficiently low to allow the elastic strand to retract from its stretched condition.