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1. (WO1997015720) APPLICATION OF THERMAL BARRIER COATINGS TO PAPER MACHINE DRYING CYLINDERS TO PREVENT PAPER EDGE OVERDRYING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015720 International Application No.: PCT/CA1996/000694
Publication Date: 01.05.1997 International Filing Date: 18.10.1996
Chapter 2 Demand Filed: 07.05.1997
IPC:
D21F 5/02 (2006.01) ,D21F 5/06 (2006.01) ,D21G 1/02 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
F
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5
Dryer section of machines for making continuous webs of paper
02
Drying on cylinders
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
F
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5
Dryer section of machines for making continuous webs of paper
02
Drying on cylinders
06
Regulating temperature
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
G
CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
1
Calenders; Smoothing apparatus
02
Rolls; Their bearings
Applicants:
PULP AND PAPER RESEARCH INSTITUTE OF CANADA [CA/CA]; 570 Boulevard Saint-Jean Pointe-Claire, Quebec H9R 3J9, CA
PYROGENESIS INC. [CA/CA]; 1744 William Montreal, Quebec H3J 1R4, CA
Inventors:
POIRIER, Nicole, A.; CA
TSANTRIZOS, Peter, G.; CA
Agent:
PRIMAK, George, J.; 13480 Huntington Pierrefonds, Quebec H8Z 1G2, CA
Priority Data:
08/546,95323.10.1995US
Title (EN) APPLICATION OF THERMAL BARRIER COATINGS TO PAPER MACHINE DRYING CYLINDERS TO PREVENT PAPER EDGE OVERDRYING
(FR) APPLICATION DE REVETEMENTS DE PROTECTION THERMIQUE A DES CYLINDRES SECHEURS DE MACHINE A PAPIER POUR EVITER LE SURSECHAGE DES BORDS DU PAPIER
Abstract:
(EN) The invention overcomes the problem of paper edge overdrying during the paper drying process on paper machine drying cylinders. It comprises applying a thin ceramic coating onto the circumferential exterior surface of the cylinder near the cylinder edges, thereby forming a thermal barrier coating which decreases paper drying rate at said edges and reduces or eliminates paper edge overdrying.
(FR) Pour résoudre le problème du surséchage des bords du papier pendant le processus de séchage du papier sur les cylindres sécheurs d'une machine à papier, on applique un mince revêtement céramique à la surface circonférentielle externe de ces cylindres, près des bords de ces derniers, pour former une protection thermique qui abaisse le taux de séchage du papier vers ces bords et réduit ou élimine le surséchage des bords du papier.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0857233JP3802933 JPH11513755CA2235147AU1996072089