HEAT-SHRINKING OF LABELS ONTO CONTAINERS

An infrared heat tunnel with hot air circulation for heat shrinking wraparound labels on containers which are moved through the tunnel in an upright attitude on an open weave conveyor belt. The infrared heating is by electrical strip heaters along the sides of the tunnel and air is blown by blowers...

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Bibliographic Details
Main Authors FRANK JOSEPH DIFRANK, RUSSELL WILLIAM HECKMAN, ROBERT JAMES BURMEISTER
Format Patent
LanguageEnglish
Published 16.07.1986
Edition4
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
BLASTING
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
GLASS
HANDLING THIN OR FILAMENTARY MATERIAL
HEATING
JOINING GLASS TO GLASS OR OTHER MATERIALS
LIGHTING
MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS
MECHANICAL ENGINEERING
METALLURGY
MINERAL OR SLAG WOOL
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
STORING
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TRANSPORTING
UNPACKING
WEAPONS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:An infrared heat tunnel with hot air circulation for heat shrinking wraparound labels on containers which are moved through the tunnel in an upright attitude on an open weave conveyor belt. The infrared heating is by electrical strip heaters along the sides of the tunnel and air is blown by blowers across these heaters to impinge on the sides of the containers. The air is drawn down through the conveyor belt since the inlet to the blowers is from beneath the conveyor. A vertical air curtain along each side of the first half of the tunnel is adjustable in length to effectively delay the skin shrinkage of the film-foam material of the labels in order to get wrinkle-free shrinkage of the film and underlying foam about the container wall and heel areas without bottle rotation.
Bibliography:Application Number: GB19860000589