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Machine translation
1. (WO1980000928) METHOD AND APPARATUS FOR THE DOUBLE-SIDED COATING OF A MOVING WEB OF MATERIAL,PREFERABLY A PAPER WEB
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000928    International Application No.:    PCT/SE1979/000226
Publication Date: 15.05.1980 International Filing Date: 06.11.1979
IPC:
B05C 9/04 (2006.01)
Applicants:
Inventors:
Priority Data:
7811721 13.11.1978 SE
Title (EN) METHOD AND APPARATUS FOR THE DOUBLE-SIDED COATING OF A MOVING WEB OF MATERIAL,PREFERABLY A PAPER WEB
(FR) METHODE ET APPAREIL DE REVETEMENT DES DEUX COTES D"UNE FEUILLE DE MATERIAU MOBILE, DE PREFERENCE UNE BANDE DE PAPIER
Abstract: front page image
(EN)Method and apparatus for double-sided coating of a moving web (1) of material with an aqueous coating composition. At least two coating stations are used for the purpose, spaced from each other and located one after the other in the direction of movement of the web, each station comprising a support roller (2, 6) and a coating means (3, 7), one side of the web (1) being brought into abutment with the support roller (2) in the first coating station and the other side of the web (1) being supplied with said coating composition, whereas in the second coating station the side of the web (1) which is already coated is brought into abutment with the support roller (6) and its uncoated side is provided with said coating composition. According to the invention due to the controlled, separate supply of a moist atmosphere on at least a part of the surface of the support roller in the second coating station which is temporarily not in contact with the paper web, a thin film of water is formed on said surface wholly or partly by condensation.
(FR)Methode et appareil pour revetir des deux cotes une feuille mobile (1) de materiau d"une composition de revetement aqueuse. On utilise a cet effet au moins deux stations de revetement, espacees l"une de l"autre et situees l"une apres l"autre dans le sens de deplacement de la feuille, chaque station comprenant un cylindre de support (2, 6) et des moyens de revetement (3, 7), un cote de la feuille (1) etant en appui sur le cylindre de support (2) dans la premiere station de revetement et l"autre cote de la feuille (1) recevant ladite composition de revetement, tandis que dans la seconde station de revetement le cote de la feuille (1) qui est deja revetu est amene en appui sur le cylindre de support (6) et son cote non revetu recoit ladite composition de revetement. Grace a l"alimentation commandee separee en une atmosphere humide sur au moins une partie de la surface du cylindre de support dans la seconde station de revetement qui n"est pas en contact temporairement avec la feuille de papier, une fine pellicule d"eau se forme sur ladite surface entierement ou partiellement par condensation.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)