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1. (WO1991017309) PROCESS FOR COATING A WEB OF MATERIAL, ESPECIALLY PAPER OR CARDBOARD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017309 International Application No.: PCT/EP1991/000596
Publication Date: 14.11.1991 International Filing Date: 27.03.1991
IPC:
B05C 1/08 (2006.01) ,B05C 1/12 (2006.01) ,D21H 23/60 (2006.01) ,D21H 25/16 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
05
SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
C
APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1
Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
04
for applying liquid or other fluent material to work of indefinite length
08
using a roller
B PERFORMING OPERATIONS; TRANSPORTING
05
SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
C
APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1
Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
04
for applying liquid or other fluent material to work of indefinite length
08
using a roller
12
the work being fed round the roller
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
23
Processes or apparatus for adding material to the pulp or to the paper
02
characterised by the manner in which substances are added
22
Addition to the formed paper
52
by contacting paper with a device carrying the material
56
Rolls
58
Details thereof, e.g. surface characteristics, peripheral speed
60
the material on the applicator roll being subjected to a particular treatment before applying to the paper
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
25
After-treatment of paper not provided for in groups D21H17/-D21H23/104
08
Rearranging applied substances, e.g. metering, smoothing; Removing excess material
16
with a blast of vapour or gas, e.g. air knife
Applicants:
JAGENBERG AKTIENGESELLSCHAFT [DE/DE]; Kennedydamm 15-17 D-4000 Düsseldorf, DE (AllExceptUS)
SOMMER, Herbert [DE/DE]; DE (UsOnly)
FRANZ, Günter [DE/DE]; DE (UsOnly)
Inventors:
SOMMER, Herbert; DE
FRANZ, Günter; DE
Agent:
THUL, Hermann; Jagenberg Aktiengesellschaft Kennedydamm 15-17 D-4000 Düsseldorf, DE
Priority Data:
P 40 14 463.107.05.1990DE
Title (DE) VORRICHTUNG ZUM BESCHICHTEN EINER MATERIALBAHN, INSBESONDERE EINER PAPIER- ODER KARTONBAHN
(EN) PROCESS FOR COATING A WEB OF MATERIAL, ESPECIALLY PAPER OR CARDBOARD
(FR) DISPOSITIF POUR L'ENDUCTION D'UNE BANDE DE MATERIAU, EN PARTICULIER UNE BANDE DE PAPIER OU DE CARTON
Abstract:
(DE) Zum Beschichten von Papier- oder Kartonbahnen sind Vorrichtungen bekannt, die ein Auftragwerk mit einer angetriebenen, teilweise von der Bahn umschlungenen Übergabewalze zum Auftragen von Beschichtungsmaterial im Überschuß auf die Bahn, einen Rollrakelstab mit umfänglichen Erhebungen und Vertiefungen zur Vergleichmäßigung des Überschußauftrags und ein Luftmesser als Enddosiereinrichtung mit einer teilweise umschlungenen Gegenwalze und einer im umschlungenen Bereich angeordneten Schlitzdüse aufweisen. Um ohne Qualitätsminderung höhere Produktionsgeschwindigkeiten zu erreichen, ist nach der Erfindung der Rollrakelstab (7) an die Übergabewalze (3) elastisch andrückbar gelagert, und der Abstand Übergabewalze (3) - Gegenwalze (9) beträgt weniger als 1500 mm, vorzugsweise weniger als 800 mm.
(EN) Devices for coating webs of paper or cardboard are known which comprise an applicator mechanism with a driven transfer roller over which part of the web passes for the application of an excess of coating material to the web, a roll squeegee rod with circumferential projections and recesses to even out the excess application and an air squeegee as the final metering device with a counter roller over which passes part of the web and a slot nozzle fitted in the zone of contact. In order to achieve higher production rates without a reduction in quality, the invention proposes the elastically applicable arrangement of the roll squeegee rod (7) on the roller (3), while the distance between the transfer roller (3) and the counter roller (9) is shorter than 1500 mm, and preferably less than 800 mm.
(FR) Pour l'enduction de bandes de papier ou de carton, il existe des dispositifs connus qui comportent un mécanisme d'application avec un rouleau de transfert entraîné, partiellement entouré par la bande, pour déposer le produit d'enduction en quantités excédentaires sur la bande, une tige à racle rotative comportant à sa périphérie des aspérités et des creux pour égaliser l'excédent de dépôt et une râcle à air comprimé faisant office de dispositif de dosage final avec un contre-rouleau entouré partiellement par la bande et une buse à fente disposée dans la zone entourée. Pour accroître les vitesses de production sans diminuer la qualité, il est prévu dans l'invention que la tige à racle rotative (7) soit pressée élastiquement sur le rouleau de transfert (3) et que l'écart entre le rouleau de transfert (3) et le contre-rouleau (9) soit inférieur à 1500 mm, et de préférence inférieur à 800 mm.
Designated States: BR, FI, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
FI920039EP0481024US5368893