Patent ID: 7040527

Claim:
A cylindrical body of a fiber drum, comprising: a roll of paper having an axis, two open ends and an outer straight cylindrical circumferential surface, plural wound layers with a cured adhesive between said plural wound layers, and a pressed curled portion at at least one of said two open ends such that said pressed curled portion is more dense than said plural wound layers, said pressed curled portion having an outer circumferential surface, wherein said pressed curled portion is angled radially outwardly relative to said outer straight cylindrical circumferential surface of said roll of paper such that said outer straight cylindrical circumferential surface of said roll of paper forms an angle with said outer circumferential surface of said pressed curled portion that is greater than 0° and less than 180° and faces away from said axis of said roll of paper, and wherein said pressed curled portion is formed by inwardly curling a respective edge of said at least one of said two open ends while the adhesive between said plural wound layers is in a non-cured state.