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1. WO2009040471 - METHOD AND ARRANGEMENT FOR COATING A WEB OF FIBRE MATERIAL WITH AT LEAST TWO LAYERS OF COATING

Publication Number WO/2009/040471
Publication Date 02.04.2009
International Application No. PCT/FI2008/050530
International Filing Date 24.09.2008
IPC
D21H 19/82 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP 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
19Coated paper; Coating material
80Paper comprising more than one coating
82superposed
CPC
D21H 19/82
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper
80Paper comprising more than one coating
82superposed
D21H 23/34
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
23Processes or apparatus for adding material to the pulp or to the paper
02characterised by the manner in which substances are added
22Addition to the formed paper
32by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
34Knife or blade type coaters
D21H 23/48
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
23Processes or apparatus for adding material to the pulp or to the paper
02characterised by the manner in which substances are added
22Addition to the formed paper
46Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
48Curtain coaters
D21H 23/50
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
23Processes or apparatus for adding material to the pulp or to the paper
02characterised by the manner in which substances are added
22Addition to the formed paper
50Spraying or projecting
Applicants
  • METSO PAPER, INC. (AllExceptUS)
  • HAAVISTO, Jouni [FI]/[FI] (UsOnly)
  • RAHKONEN, Simo [FI]/[FI] (UsOnly)
Inventors
  • HAAVISTO, Jouni
  • RAHKONEN, Simo
Agents
  • SEPPO LAINE OY
Priority Data
2007567327.09.2007FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND ARRANGEMENT FOR COATING A WEB OF FIBRE MATERIAL WITH AT LEAST TWO LAYERS OF COATING
(FR) PROCÉDÉ ET DISPOSITIF POUR RECOUVRIR UNE BANDE DE MATÉRIAU FIBREUX D'AU MOINS DEUX COUCHES DE REVÊTEMENT
Abstract
(EN)
A method of and an arrangement for coating a web of paper, board or the like mainly comprising plant fibbers with at least two layers of treatment materials. In the method the web (3) is directed into the first coating step (1) and one layer of coating material is applied onto the first surface of the first web (3), subsequent to which the web is directed into the second coating step (10) and at least a second layer of coating material is applied onto the first surface of the web. A blade coater (1) is used in the first step and a contactless coater (10, 12) is used in the second step and the second coating layer is applied over an at least partly first coating layer.
(FR)
L'invention concerne un procédé et un dispositif pour recouvrir une bande de papier, carton ou similaire comprenant principalement des fibres végétales, d'au moins deux couches de matériaux de traitement. Selon le procédé, la bande (3) est dirigée vers la première étape de revêtement (1) et une couche de matériau de revêtement est appliquée sur la première surface de la première bande (3), à la suite de quoi la bande est dirigée vers la seconde étape de revêtement (10) et au moins une seconde couche de matériau de revêtement est appliquée sur la première surface de la bande. Une coucheuse à lame (1) est utilisée dans la première étape et une coucheuse sans contact (10, 12) est utilisée dans la seconde étape, et la seconde couche de revêtement est appliquée par-dessus une première couche de revêtement au moins partielle.
Also published as
Latest bibliographic data on file with the International Bureau