Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-10-09
1985-10-15
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156229, 156291, 156494, 156522, 156548, 604385A, B32B 3106
Patent
active
045472432
ABSTRACT:
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 batt sheet material and moisture-impervious top-sheet material are fed to the diaper assembly station. Further, and simultaneously, while the webs are traveling to the assembly station, the quantity of the adhesive applied to the elastic ribbon is changed so that there is substantially less adhesive in pre-determined isolated portions of the stretched elastic ribbon. At the assembly station, a stretched elastic ribbon is adhered to the moisture-impervious backsheet web along portions of the elastic ribbon which intervene the selected areas of the web while lesser quantities of the adhesive are located. After the adhesive is set up, the stretched elastic ribbon adheres to the moisture-impervious backsheet in the pre-selected areas with a force which exceeds the contracting force in the elastic ribbon, whereas in the portions which intervene the selected areas, the force which binds the elastic ribbon to the moisture-impervious backsheet is substantially less than the contracting force of the elastic whereupon the portions of the elastic intervening the selected areas are released from the moisture-impervious backsheet so that the contractible force of elastic becomes ineffective without effecting the functionality of those portions of the elastic adhered to the moisture-impervious backsheet in the selected areas.
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Bouda Francis J.
Simmons David
Whitestone Products
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