Package for a plurality of pressure-sensitive sensitized sheets

Claim 1

A package for a plurality of pressure-sensitive sensitized sheets comprising: a tray, said tray including a generally planar base wall, an upstanding sidewall extending from and circumscribing said base wall so as to define a space into which said sheets may be stacked, said tray further including a flangE extending from said sidewall in a direction away from said space and parallel to said base wall; a stack of said sheets provided in said space, said sheets being positioned one directly above the other, so that at least one sheet has a sensitized surface in contact with a surface of an adjacent sensitized sheet; a flexible opaque sheetlike cover positioned over and having one surface thereof in contact with said stack of sheets, said cover being sealed to said flange so as to prevent light and ambient moisture from entering said space; compressive force exerting means including a compressed springlike pad means of foamed material, said springlike pad means being located on the side of said cover which is opposite to that which is in contact with said sheets and said pad means being constrained at least in part by said stack of sheets against expansion to an unstressed state, so that the tendency of said pad to expand continuously applies to said stack of sheets through said cover, a compressive force having a direction transverse to the plane of said sheets to thereby substantially restrict surface-to-surface movement between adjacent sheets.