Patent classifications
D21H1/00
SCORING RULE FOR FORMING A FOLDING SCORE ON A SHEET MATERIAL
A scoring rule for forming a folding score on a sheet material includes a pair of score members with a scoring surface portions with individually asymmetrical flat outer surfaces extending at an angle. The score members press against a first side of the sheet material to cause a pair of laterally spaced fold score lines to be formed on the first side of the sheet material by the scoring surface portions. As the scoring rule engages the sheet material, a second, opposite side of the sheet material is compressed such that rubber-type material of an anvil of the rotary press bulges towards and forces the sheet material into an area between the pair of score members causing a self-contained single longitudinally inwardly extending groove to be formed on the second, opposite side of the sheet material along a line parallel to and positioned between the laterally spaced score lines.
ENHANCED CO-FORMED MELTBLOWN FIBROUS WEB
An enhanced, co-formed fibrous web structure is disclosed. The web structure may have a co-formed core layer sandwiched between two scrim layers. The core layer may be formed of a blend of cellulose pulp fibers and melt spun filaments. The scrim layers may be formed of melt spun filaments. Filaments of one or both of the scrim layers, and optionally the core layer, may also be meltblown filaments. The core layer may include consolidated masses of cellulose pulp fibers to, for example, enhance texture and cleaning efficacy of a wet wipe made from the structure. The material forming the consolidated masses may be selected and/or processed so as to cause the masses to have reduced visual discernibility relative the surrounding areas of the structure, when the fibrous web structure is wetted. A method for forming the structure, including formation and inclusion of the consolidated masses, is also disclosed.
METHOD AND APPARATUS FOR APPLYING A TREATMENT SUBSTANCE ON A RUNNING PAPER WEB OR BOARD WEB
Method and apparatus for applying a treatment substance to a running paper or board web comprising an applicator with at least one free-jet nozzle having an outlet gap for applying the treatment substance, being a machine-width, film-like jet, to a moving substrate, in particular at least one applicator roll which transfers the treatment substance to the paper or board web in a treatment nip defined by the at least one applicator roll with a counter element, wherein the free-jet nozzle is positioned at an angle to the moving substrate in such a way that an angle to the perpendicular of an impingement line of the coating on the moving substrate is between 5 and 85, and the intensity of the jet impulse at the impingement line is increased by a gravitational acceleration of the jet caused by an adjustable effective height H from the outlet gap of the free-jet nozzle, and a jet curvature along a path length is modulated via the angle .