EP 1162307 A2 20011212 - Shoe press belt for paper machines
Title (en)
Shoe press belt for paper machines
Title (de)
Schuhpressenband für Papiermaschinen
Title (fr)
Bande pour presse à patin pour machines à papier
Publication
Application
Priority
DE 10027853 A 20000606
Abstract (en)
The belt for use with a shoe press, in a papermaking machine, has a carrier layer and a belt layer composed of an inner and an outer (5) layer. The outer layer has a porous structure with hollow zones (8) open outwards, formed by an unfoamed material. The papermaking machine shoe press belt has an inner layer which is impermeable to fluids and has longitudinal and/or pressure elasticity. The carrier layer has a longitudinal specific module of ≤ 500 cN/tex with a woven or knitted structure, or as a band of filaments, a nonwoven, or a combination of material types. The carrier is embedded at least partially into the inner layer The inner layer is of natural rubber and/or an elastomer. The inner layer has a hardness of 80-95 Shore A, and can contain inorganic bulking particles. The inner layer has a maximum thickness tolerance of 100 mu m. The hollow zones at the outer layer have an average diameter of 10-1500 mu m. The outer layer incorporates nano particles of SiO2 or fluorocarbon chains, which form a partially closed surface. The outer layer can have a prepolymer emulsion coating, which is hardened by electron beams. The outer layer can be of a combination of materials which form different hydrophilic and hydrophobic zones. The outer layer has a thickness of ≤ 3 mm, and the thickness of the inner layer is 1-3 mm. The outer layer has a hardness of 80-95 Shore A and a thickness tolerance of plus or minus 50 mu m. A further layer can be inserted between the outer and inner layers, which is harder than the outer layer. The whole shoe press belt structure has a thickness tolerance of plus or minus 100 mu m.
Abstract (de)
Die Erfindung bezieht sich auf ein Schuhpressenband (1) für den Einsatz in Schuhpressen einer Papiermaschine, mit einem Träger (2) und einer flüssigkeitsundurchlässigen Bandschicht (3, 5), die eine Innenschicht (3) und eine Außenschicht (5) aufweist, wobei die Außenschicht (5) eine porige Struktur hat und die porige Struktur ausschließlich von zwei außenseitig offenen Hohlräumen (8, 12, 14) gebildet ist, und ist dadurch gekennzeichnet, daß die Außenschicht (5) aus einem ungeschäumten Material besteht. <IMAGE>
IPC 1-7
IPC 8 full level
D21F 3/02 (2006.01)
CPC (source: EP KR US)
D21F 3/02 (2013.01 - KR); D21F 3/0227 (2013.01 - EP US); Y10S 162/90 (2013.01 - EP US); Y10S 162/901 (2013.01 - EP US); Y10T 428/249962 (2015.04 - EP US); Y10T 428/249976 (2015.04 - EP US); Y10T 428/249978 (2015.04 - EP US); Y10T 428/249979 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1162307 A2 20011212; EP 1162307 A3 20020515; EP 1162307 B1 20031112; AR 028129 A1 20030423; AT E254209 T1 20031115; BR 0102273 A 20020219; CA 2347570 A1 20011206; CA 2347570 C 20080226; CN 1159494 C 20040728; CN 1327102 A 20011219; DE 50100938 D1 20031218; ES 2210061 T3 20040701; ID 30419 A 20011206; KR 100468202 B1 20050126; KR 20010110357 A 20011213; MY 125011 A 20060731; PT 1162307 E 20040331; US 2002060052 A1 20020523; US 6616814 B2 20030909; ZA 200104578 B 20011212
DOCDB simple family (application)
EP 01111416 A 20010510; AR P010102693 A 20010606; AT 01111416 T 20010510; BR 0102273 A 20010605; CA 2347570 A 20010515; CN 01119449 A 20010605; DE 50100938 T 20010510; ES 01111416 T 20010510; ID 20010437 D 20010605; KR 20010031639 A 20010607; MY PI20012525 A 20010528; PT 01111416 T 20010510; US 87076901 A 20010601; ZA 200104578 A 20010605