Stack of sheet assemblies

In combination,

• a stack of sheet assemblies, each sheet assembly comprising first and second sheets each having front and rear major surfaces and first and second opposite edges,
• a first layer of adhesive adhering a portion of the rear surface of said first sheet adjacent the first edge of the first sheet to the front surface of said second sheet adjacent the first edge of the second sheet with said first edges generally aligned, said first layer of adhesive extending a first predetermined distance from said first edges toward the second edges of said sheets, and
• a second layer of pressure sensitive adhesive on said rear surface of said second sheet, said second layer of pressure sensitive adhesive comprising a first portion within said first distance from said first edge, and a second portion positioned between said first adhesion zone and the second edge of said second sheet, said portions adhering the rear surface of the second sheet of the sheet assembly to the front surface of the first sheet on the sheet assembly beneath it in the stack,
• said sheet assemblies including release means for providing a first adhesion zone between the front surfaces of the first sheets and the rear surfaces of the second sheets of the sheet in the stack, said first adhesion zone extending about said first predetermined distance from the first edges toward the second edges of said sheets and providing a release force between said first portion of said second layer of adhesive and the front surface of the adjacent first sheet in the stack which is lower than the release force of the first layer of adhesive to said first and second sheets to afford easy initiation of peeling of the uppermost sheet assembly from the adjacent sheet assembly in the stack along the first adhesion zone by pulling on the first sheet of the uppermost sheet assembly on the stack, and a second adhesion zone between the front surfaces of the first sheets and the rear surfaces of the second sheets in the stack adjacent said second portion with said second adhesion zone having a release force higher than said low release force in the first adhesion zone that is sufficiently high to firmly adhere adjacent sheet assemblies in the stack together while affording continued peeling away of the uppermost sheet assembly in the stack along said second adhesion zone after initiating of such peeling along the first adhesion zone;
• and
• a container comprising walls around said stack of sheet assemblies, including a bottom wall supporting said stack of sheet assemblies, side walls along and closely spaced from the edges of the sheets in said stack of sheet assemblies including a first end wall along the first edges of the sheets in the stack of sheet assemblies, and a top wall along the top of said stack of sheet assemblies, said top wall having an edge surface spaced from said first end wall to provide an opening therebetween, and said edge surface of said top wall being spaced from said end wall by a distance greater than said first predetermined distance so that with an end portion of the first sheet adjacent the second edge of the first sheet of the uppermost sheet assembly in the stack projecting through said opening, tension applied manually to said end portion will first cause separation of the second sheet of the uppermost sheet assembly in the stack from the second sheet assembly in the stack along the first adhesion zone by bending that second sheet around said edge surface, where after said second sheet of the uppermost sheet assembly in the stack will be pulled along the top wall of the container and around said edge surface while carrying with it the first sheet of the second sheet assembly in the stack until the end portion of the second sheet of the uppermost sheet assembly in the stack carries the first sheet of the second sheet assembly in the stack through the opening and is subsequentIy peeled therefrom, leaving the first sheet of what was originally the second sheet assembly in the stack projecting through the opening in a position to also be manually pulled therethrough in the manner described above.