Method and apparatus for applying a material to a web

• Main Authors: HAMPL, JR.; VLADIMIR, MURRAY; TYRONE W, CLARK; H. EDMUND, CUTRIGHT; EDWIN L, URSERY; PHILLIP L, PHAN; D. ANH, FILLIO; THOMAS L, LANZILLOTTI; HARRY V, DOUGHERTY; THOMAS E, EDWARDS; RONALD L, GAUTAM; NAVIN, BUTT, SR.; JON R
• Format: Patent
• Language: English
• Published: 07.12.1999
• Edition: 6
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; CIGARETTES; CIGARS; HUMAN NECESSITIES; IMPREGNATING OR COATING OF PAPER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES; MOUTHPIECES FOR CIGARS OR CIGARETTES; NOZZLES; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SMOKERS' REQUISITES; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TEXTILES; TOBACCO; TOBACCO SMOKE FILTERS; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

A method and apparatus of manufacturing a web which is striped with add-on material, comprising: a first arrangement which establishes a sheet of base web from a first slurry and moves the established sheet along a first path; a second arrangement for preparing a second slurry; a moving orifice applicator operative so as to repetitively discharge the second slurry upon the moving sheet of base web, the moving orifice applicator comprising: a chamber box arranged to establish a reservoir of the second slurry across the first path; an endless belt having an orifice, the endless belt received through the chamber box; a drive arrangement operative upon the endless belt to continuously move the orifice along an endless path and repetitively through the chamber box, the orifice when communicated with the reservoir being operative to discharge the second slurry from the reservoir through the orifice; a flow distribution system for introducing the second slurry into the chamber box at spaced-apart feed locations along the chamber box; a flow monitoring system for reading fluid pressure at spaced-apart locations along the chamber box; and a controller arranged to identify which of the feed ports is operatively adjacent a monitored location of highest pressure variation, the controller selectively adjusting output of the flow distribution system at the identified feed location counteractively to the highest pressure variation, the controller adjusting output of a remainder of the feed locations counteractively to the output adjustment at the identified feed location.