摘要:
A composition of matter for surface sizing of paper and other cellulosic products. In particular, the composition is a styrene/acrylic acid ester copolymer latex made by emulsion copolymerization without surfactants.
摘要:
A dispenser (10) for dispensing sheet material including a plurality of spaced perforations may include a housing (12) defining an interior for accommodating a source (20) of the sheet material, and an outlet (14) through which the sheet material may be dispensed. The device may also include a perforation sensor (22) configured to sense perforations in the sheet material, disposed in the interior of the housing. The perforation sensor may include at least one light receptor, and at least a portion of the perforation sensor may be positioned in the housing to contact sheet material traveling from the source to the outlet, thereby spreading perforations in the sheet material.
摘要:
Apparatus for dispensing paper from rolls which feeds continuously, roll to roll, and does not require extra procedure to bring stub roll into position. The apparatus has means for holding and positioning at least first and second rolls of paper with respect to each other; means for dispensing paper from the first roll; means for dispensing paper from the first and second rolls simultaneously whent he first roll reduces to a predetermined diameter of paper, means for positioning the depleted first roll for replacement without the necessity of removing the second roll; and, means for dispensing from the second and replacement rolls simultaneously when the second roll reduces to a predetermined diameter of paper. The apparatus also has a capacity-change-based proximity sensor comprising a circuit according to a balanced bridge principle where detection is based on detecting a phase difference, which depends upon the amount of detected capacitance difference or change. The proximity detector senses when a hand is placed near the dispenser, and thereupon dispenses a set amount of towel. It does not keep dispensing the towel. The hand must be withdrawn and placed in proximity to the sensor again. The proximity sensor incorporates "static" and noise-immunity circuitry. The dispenser incorporates means for dissipating static charges to a local ground.
摘要:
A paper towel dispenser (10) includes a housing (20) having a discharge opening (48). A support (35) is provided within the housing (20) for supporting a continuous strip of sheet material having a plurality of spaced tear lines defining leading and trailing edges of individual removable segments, with an outer segment having a free leading edge and inner segments which in turn become outer segments as adjoining outer segments are removed. A feed mechanism (37) repeatedly advances the sheet material, in first and second intervals, to advance successive outer ones of the segments through the discharge opening (48) and out of the housing (20). A sensor (38) repeatedly detects arrival of a leading edge of the advancing sheet material at a first position defining the end of the first interval and the beginning of the second interval, as the sheet material is repeatedly advanced towards the discharge opening (48). A control device (53) receives a signal from the sensor (38) indicating arrival of a leading edge at the first position, and for terminating the operation of the feed mechanism (37) when a leading edge of the sheet material has further advanced from the first position a predetermined amount, repeatedly to place the spaced tear lines at a second position that is variable within a space defined between the feed mechanism and the first position in relation to variations in the lengths of the segments, the second position defining the beginning of the first interval of advancement for a next adjacent segment, when it is in turn dispensed.
摘要:
A paper core turnup apparatus for wrapping a web of paper about a core at high speeds includes a cylindrical core (4) and a plurality of double sided adhesive tape strips (10, 12, 14). Each of the tape strips extends axially along an outer surface of the core, and is spaced from adjacent tape strips a predeterminded distance. In a preferred embodiment, adjacent strips are circumferentially spaced approximately 12' from one another.
摘要:
An ultra soft, bulky, multi-ply tissue having low overall sidedness and a geometric mean tensile strength of less than about 800 g/3" wherein an embossed ply has a TMI sidedness of at least about 0.45 and an embossed area of at least about 2%, which is capable of being made from non-premium furnish, and method for making such products are disclosed. An ultra soft, bulky, multi-ply tissue having low overall sidedness and a geometric mean tensile strength of less than about 35 g/3" per lb. of basis weight wherein an embossed ply has a TMI sidedness of at least about 0.45 and an embossed area of at least about 2%, which is capable of being made from non-premium furnish, and method for making such products are also disclosed.
摘要:
A dispenser (100), a flexible sheet material roll (12), and a dispensing system for dispensing flexible meterial from the sheet material rolls. The system includes a rolled products dispenser and sheet material rolls. The dispenser includes opposing lateral side wall surfaces (104, 114), and a guide track (110, 111) located in each of the lateral side wall surfaces. At least one of the two guide tracks includes an elongated guide projection (124). Each sheet material roll includes flexible sheet material wound around a hollow center core having first and second ends, and first (118) and second (119) end caps positioned in respective ends of the hollow center core (116). Both end caps have an inwardly projecting portion located side the hollow centre core, and an outwardly projecting cylindrical spindle (120, 121) extending outwardly past their respective end of the hollow center core. The spindles guide the roll within the guide tracks of the dispenser. The spindle of one of the end caps includes at least one annular groove (126) in its circumference which interfaces with the elongated guide projection of the guide track, to provide a system where the roll is keyed to fit the dispenser. This assures proper orientation of the rolls in the dispenser, and provides an arrangement for coordinating the quality of the rolls being dispensed from specific dispensers.