Rolled sheets of floor covering and manufacture
A roll of a sheet material such as a sheet vinyl floor covering and a process of manufacturing the roll to prevent the leading edge of the floor covering from causing damage to succeeding layers. The process comprises winding the sheet material about the surface of a roll core and inserting a thin sheet of a relatively stiff material, such as paperboard, between the leading edge of the sheet material and the next succeeding layer of sheet material. The relatively stiff material is inserted under tension so that the leading edge of sheet material is pulled down against the surface of the roll core.
1. A roll of a sheet floor covering material comprising
a cylindrical roll core having a length and an outer surface having a circumference,
a sheet of floor covering material wound around the outer surface of the cylindrical roll core, the floor covering material having a first leading edge, a first thickness, a first width, a first length having a first leading portion and a first trailing portion, a first upper surface and a first lower surface, and
a sheet of a paper material having a thickness from 3 to 20 mils adhered to the first upper surface of the first leading portion and having a second leading edge, a second thickness, a second width, a second length having a second leading portion and a second trailing portion, a second upper surface and a second lower surface,
the second lower surface of the second trailing portion is adhered to the first upper surface of the first leading portion, and
the second lower surface of the second leading portion of the sheet of paper material is in direct contact with the outer surface of the cylindrical roll core and the first leading edge of the floor covering material, and
the sheet of paper material is disposed under tension between the first leading edge and the first lower surface,
wherein the sheet of paper material is not a part of the roll core and a ratio of the thickness of the sheet of paper material to the thickness of the sheet of floor covering material is from about 0.015 to about 0.5.
2. The roll of sheet floor covering material of claim wherein the second leading portion has a length about the same as the circumference of the outer surface of the cylindrical roll core and the second lower surface of the second leading portion is also in direct contact with the second leading edge of the thin sheet of paper material.
3. The roll of sheet floor covering material of claim wherein the second leading portion has a length less than the circumference of the outer surface of the cylindrical roll core.
4. The roll of sheet floor covering material of claim wherein the ratio of the thickness of the sheet of paper material to the thickness of the sheet of floor covering material is from about 0.033 to about 0.28.