Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate
2007-01-16
2007-01-16
Kiliman, Ieszek B. (Department: 1773)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
C428S171000, C252S062200, C252S062200, C252S062200, C252S062200, C427S242000
Reexamination Certificate
active
10479120
ABSTRACT:
Disclosed is a sanitary tissue paper roll wherein, when a sanitary tissue paper roll of two-ply or three-ply is laid on a horizontal surface with its central axis in a horizontal orientation, and a circular plate indenter, having an area of 2 cm2and being arranged at a center of an upper surface of an outer periphery of a body of the roll, is vertically pressed at least at respective pressing pressures of 0.5 gf/cm2and 50 gf/cm2, a difference in depths upon this respective pressing is within a range of 2.5–3.5 mm. Also disclosed is a sanitary tissue paper roll made by winding one sheet or two layered sheets of sanitary tissue papers wherein a roll compressibility of the roll is 0.68–0.74 m/cm2, with the roll compressibility being defined as a value obtained by dividing a roll length by a cross section of the roll. Also disclosed is a sanitary tissue paper for a sanitary tissue paper roll, wherein a sample paper is compressed between steel plates, which respectively have a circular surface with a compression area of 2 cm2, at a maximum compression load of 50 gf/cm2, and upon returning of this paper sample, a linearity of a displacement curve between a load and a thickness is 0.2500–0.3300 for a one-ply, and 0.3400–0.3700 for a two-ply; and a thickness upon a load of 50 gf/cm2is equal to at least 0.1400 mm for a one-ply, and equal to at least 0.2500 mm for a two-ply.
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“Decision of Final Rejection” issued Dec. 7, 2004 in Japanese Patent Application No. 2001-257522 (in English and Japanese languages).
Hirasawa Akira
Mukai Takeharu
Daio Paper Corporation
Kiliman Ieszek B.
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