B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
223/6, 154/30.1
B32B 37/12 (2006.01)
Patent
CA 1187391
METHOD AND APPARATUS FOR CONTINUOUSLY ATTACHING ELASTIC STRANDS TO DISPOSABLE ABSORBENT PRODUCTS ABSTRACT In this invention, a continuous elastic ribbon is fed to a diaper assembly station in a stretched condition while, at the same time, an adhesive is continuously applied to the elastic ribbon. Simultaneously, absorbent batts, as well as webs of moisture-impervious backsheet material and moisture-pervious top-sheet material are fed to the diaper assembly station. Further, and simultaneously, while the webs are traveling to the assembly station, a release medium is applied to one of the said webs in selected areas thereof in a manner so as to overlie pre-determined, isolated portions of said stretched, elastic ribbon. At the assembly station, the stretched elastic ribbon is adhered to the moisture-impervious backsheet web along por- tions of the elastic ribbon which intervene the selected areas of the web where the release medium is located. After the ad- hesive has set up, the stretched elastic ribbon adheres to the moisture impervious backsheet between the release medium, and the elastic is severed in its unadhered areas, whereupon the unadhered portions become relaxed and inactive without af- fecting the functionality of the adhered portions in the ultimate assemblage.
412940
Bouda Francis J.
Macrae & Co.
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