DISPENSING APPARATUS FOR APPLYING ADHESIVE ON AN ELASTIC STRAND IN ASSEMBLY OF A PERSONAL DISPOSABLE HYGIENE PRODUCT

摘要

A method of dispensing adhesive onto a stretched elastic strand includes 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, and applying a third volume of adhesive onto a third portion of the elastic strand. The second volume is less than the first and third volumes. When the elastic strand is adhesively secured to a substrate to form a personal disposable hygiene product, the first and third portions of the elastic strand define opposing ends of the elastic strand, which are adhered with a larger amount of adhesive capable of limiting movement of the strand at the opposing ends, thereby maintaining the integrity of the bond between the substrate and the elastic strand.

主权项

1. A dispensing apparatus for applying adhesive to at least one stretched elastic strand to be adhered to a substrate to form a personal disposable hygiene product, each elastic strand including first, second, and third portions along a length of the elastic strand, the dispensing apparatus comprising:
a single dispensing nozzle for dispensing adhesive onto the stretched elastic strand at each of the first, second, and third portions; a first valve adapted to control flow from a first adhesive supply through said dispensing nozzle; and a second valve adapted to control flow from a second adhesive supply through said dispensing nozzle, wherein said first valve is opened while the second valve is closed to apply a first volume of adhesive on the first portion and to apply a third volume of adhesive on the third portion, and the first valve is closed when the second valve is opened to apply a second volume of adhesive on the second portion that is less than the first volume of adhesive and less than the third volume of adhesive; and a strand guide for guiding the elastic strand relative to a dispensing outlet of said dispensing nozzle, wherein the first and third portions of the elastic strand define opposing ends of the elastic strand when adhered to the substrate, and the second portion of the elastic strand defines a central portion of the elastic strand extending between the opposing ends when adhered to the substrate.