Method of non-abrasive mechanical relief of a cellulose sheet and apparatus
OwnerMark Shapton, Paul Lautrupinventors
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Abstract
Embodiments of the present invention generally relate a method and apparatus of non-abrasive mechanical relief of a cellulose sheet to allow for uniform radius bending. In one embodiment of the present invention, a mechanically relieved sheet comprises a sheet comprising a cellulosic material and having a first surface, and at least a notched section on the first surface of the sheet comprising a plurality of indentations, wherein the first surface of the sheet is substantially free of visible cracks, wrinkles and abrasions.
Claims20
A mechanically relieved sheet comprising:
- a sheet comprising a cellulosic material having a first surface;
- at least a notched section on the first surface of the sheet comprising a plurality of indentations;
- wherein the first surface of the sheet is substantially free of visible cracks, wrinkles and abrasions.
The mechanically relieved sheet of claim, further comprising a layer of adhesive disposed on the cellulose sheet.
A mechanically relieved sheet comprising:
- a sheet comprising a cellulosic material having a first surface;
- at least a notched section on the first surface of the sheet comprising a plurality of indentations;
- and
- a layer of adhesive disposed on the cellulose sheet;
- wherein at least a portion of the sheet is curved in accordance with a predetermined radius.
A method of non-abrasively relieving a cellulosic sheet comprising:
- providing a cellulosic sheet;
- and
- scoring the cellulosic sheet in a die assembly comprising at least a first die with a plurality of substantially uniform indentations.
Dependencies are inferred from the claim text.