Method and apparatus for forming windowed pressure sensitive lab

Details Method and apparatus for forming windowed pressure sensitive lab Method and apparatus for forming windowed pressure sensitive lab

1980-06-26

1982-05-04

Kittle, John E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

40 2R, 193 11, 156268, 156289, 156513, 156584, 406 47, 428 40, B32B 3100

Patent

active

043280579

ABSTRACT:
A method and apparatus for forming a pressure sensitive label on a backing web, wherein at least one "window" area is cut within the label's perimeter but the backing web is not cut. The slug which is cut to form the label's window area is thereafter peeled from the backing web and carried off through a vacuum take-off line for disposal as scrap. At the time of slug removal the pressure sensitive adhesive on the slug and/or the vacuum take-off line is treated with an adhesive-deadening substance to minimize the tendency of the slugs to adhere to one another and to the take-off equipment.

REFERENCES:
patent: 396401 (1889-01-01), Hall
patent: 636825 (1899-11-01), Maurer
patent: 2985554 (1961-05-01), Dickard
patent: 3507740 (1970-04-01), Gaspari
patent: 3661679 (1972-05-01), Law
patent: 4013497 (1977-03-01), Wolf
patent: 4246058 (1981-01-01), Reed

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