摘要:
Apparatus for dispensing toilet tissue alternately from two rolls includes a housing (10) and roll support spindles for supporting the rolls in coaxial spaced relationship relative to the housing (10). A sliding cover (60) is slidably positioned on the housing (10). The roll support spindles are mounted on a pivoted support frame and a pivoted plate depends from the support frame and is located in the space between adjacent roll ends. The cover (60) includes detents which cooperate with the pivoted plate to allow sliding of the cover (60) on the housing (10) to expose a different roll of toilet tissue only when one of the rolls is substantially depleted.
摘要:
A dispensing apparatus and method for dispensing sheet material from roll of the sheet material. Dispensing is transferred from a stub roll (S) to a reserve roll (R) automatically in response to sensing a predetermined quantity of the stub roll (S). An isolating element (102a) is provided to lift the reserve roll (R) out of contact with dispensing rollers (44a-44) during dispensing of sheet material from the stub roll (S), and a nipping element (70) is provided to nip sheet material of the reserve roll (R) when dispensing is transferred from the stub roll (S) to the reserve roll (R). A camming mechanism (88) controls movement of both the lifting mechanism and the nipping element (70). Structure (108) is also provided for sensing the diameter of the reserve roll (R) of sheet material and providing an indication when the reserve roll (R) is a predetermined diameter. The dispenser is quite and capacity efficient.
摘要:
Dispensible sheet material (10) includes opposite side edges (12 and 14) spaced apart from one another to define the overall width of the sheet material (10). Zones of weakness (16) are spaced along the sheet material (10). Adjacent zones of weakness (16) are spaced apart by a distance of from about 50% to about 200% of the overall width of the sheet material (10) to divide the sheet material (10) into a plurality of sheet material segments. Each of the zones of weakness (16) comprises a plurality of perforations (20) and frangible sheet material portions (18). Each of the frangible sheet material portions (18) has a width of from about 0.3mm to about 1.8 mm. The total width of the frangible sheet portions (18) in each zone of weakness is from about 10% to about 30% of the overall width of the sheet material (10). The sheet material (10) has an elasticity in the dispensing direction of from about 4% to about 20%. The sheet material (10) has a dry tensile strength in the dispensing direction of from about 4,000 grams per 3 inches of width to about 12,000 grams per 3 inches of width. The sheet material (10) has a wet tensile strength in the weakest direction, typically, a direction orthogonal to the dispensing direction, of at least about 900 grams per 3 inches of width. In addition, the sheet material (10) has a tensile ratio of less than about 2.0. A dispensing system includes a dispenser defining an interior for containing the sheet material (10) and an outlet for allowing sheet material (10) to be dispensed from the interior of the housing.
摘要:
A dispenser for dispensing toilet tissue alternately from two rolls includes a housing and roll support spindles for supporting the rolls in coaxial spaced relationship relative to the housing. A sliding cover is slidably positioned on the housing. The roll support spindles are mounted on a pivoted support frame and a pivotally mounted engaging member extends from the support frame and is located in the space between adjacent roll ends. The cover includes detents which cooperate with the pivotally mounted tissue roll engaging member to prevent the cover from being moved from one position in which one of the tissue rolls is exposed to a second position in which the other tissue roll is exposed until the one tissue roll is depleted or substantially depleted.
摘要:
A creping blade (20) for creping a cellulosic web from a rotatable cylinder in a creping process includes first and second side faces (22, 24). The first side face (22) is at least substantially opposite to the second side face (24). The blade also includes an upper surface (26) that is not orthogonal to at least one of the first and second side faces. Also included are a plurality of notches (28). Each of the notches has a bottom portion (30) and an open end (32). The bottom portion is at least substantially parallel to the upper surface and the open end is defined by at least a portion of the upper surface. The notches are configured to increase the caliper of the cellulosic web when the creping blade crepes the cellulosic web from an outer surface of the rotatable cylinder. Also provided are systems and methods for creping a cellulosic web and creped paper.
摘要:
A dispenser for dispensing toilet tissue alternately from two rolls includes a housing and roll support spindles for supporting the rolls in coaxial spaced relationship relative to the housing. A sliding cover is slidably positioned on the housing. The roll support spindles are mounted on a pivoted support frame and a pivotally mounted engaging member extends from the support frame and is located in the space between adjacent roll ends. The cover includes detents which cooperate with the pivotally mounted tissue roll engaging member to prevent the cover from being moved from one position in which one of the tissue rolls is exposed to a second position in which the other tissue roll is exposed until the one tissue roll is depleted or substantially depleted.
摘要:
Dispensible sheet material (10) includes opposite side edges (12 and 14) spaced apart from one another to define the overall width of the sheet material (10). Zones of weakness (16) are spaced along the sheet material (10). Adjacent zones of weakness (16) are spaced apart by a distance of from about 50% to about 200% of the overall width of the sheet material (10) to divide the sheet material (10) into a plurality of sheet material segments. Each of the zones of weakness (16) comprises a plurality of perforations (20) and frangible sheet material portions (18). Each of the frangible sheet material portions (18) has a width of from about 0.3mm to about 1.8 mm. The total width of the frangible sheet portions (18) in each zone of weakness is from about 10% to about 30% of the overall width of the sheet material (10). The sheet material (10) has an elasticity in the dispensing direction of from about 4% to about 20%. The sheet material (10) has a dry tensile strength in the dispensing direction of from about 4,000 grams per 3 inches of width to about 12,000 grams per 3 inches of width. The sheet material (10) has a wet tensile strength in the weakest direction, typically, a direction orthogonal to the dispensing direction, of at least about 900 grams per 3 inches of width. In addition, the sheet material (10) has a tensile ratio of less than about 2.0. A dispensing system includes a dispenser defining an interior for containing the sheet material (10) and an outlet for allowing sheet material (10) to be dispensed from the interior of the housing.
摘要:
A dispensing apparatus and method for dispensing sheet material from roll of the sheet material. Dispensing is transferred from a stub roll (S) to a reserve roll (R) automatically in response to sensing a predetermined quantity of the stub roll (S). An isolating element (102a) is provided to lift the reserve roll (R) out of contact with dispensing rollers (44a-44) during dispensing of sheet material from the stub roll (S), and a nipping element (70) is provided to nip sheet material of the reserve roll (R) when dispensing is transferred from the stub roll (S) to the reserve roll (R). A camming mechanism (88) controls movement of both the lifting mechanism and the nipping element (70). Structure (108) is also provided for sensing the diameter of the reserve roll (R) of sheet material and providing an indication when the reserve roll (R) is a predetermined diameter. The dispenser is quite and capacity efficient.