EP 0244035 B1 19911016 - METHOD AND DEVICE FOR PRODUCING MARKING LINES ON A MAT OF MINERAL FIBRES CONTAINING A BINDING AGENT
Title (en)
METHOD AND DEVICE FOR PRODUCING MARKING LINES ON A MAT OF MINERAL FIBRES CONTAINING A BINDING AGENT
Publication
Application
Priority
DE 3612858 A 19860416
Abstract (en)
[origin: WO8706198A1] Markings have to be applied to the surface (41) of a mineral fibre web (38), said markings being arranged transversely to its length or to its direction of movement. For this, a cylinder (1) is provided with peripheral heating zones, in the form of heating rods (26), corresponding in shape and position to the markings to be applied, said cylinder (1) rotating at a speed whereby the rods (26), or marking ribs (30) provided on the latter, effect the rolling essentially without any slippage on the surface (41) of the mineral fibre web (38). The heating rods (26) or marking strips (30) are made of metal and are electrically heated, by an internal tubular heating element (31), to such a temperature that when contact is made with the surface (41) of the mineral fibre web (38) a flat decomposition zone (43) is created which corresponds to the contour of the marking strips (30), in which zone the binder of the mineral fibre web (38) is decomposed and by changing colour produces the optically visible marking line. The cylinder (1) can be driven either by a d.c. motor synchronously with the line speed of the mineral fibre web (38), or it can also be driven by entrainment with the surface (41) of the mineral fibre web (38).
IPC 1-7
IPC 8 full level
B44B 5/02 (2006.01); B44B 7/00 (2006.01); E04B 1/76 (2006.01); E04D 13/16 (2006.01); E04B 1/74 (2006.01)
CPC (source: EP)
B44B 5/028 (2013.01); B44B 7/00 (2013.01); E04B 1/7662 (2013.01); E04D 13/16 (2013.01); E04D 13/1625 (2013.01); E04B 2001/741 (2013.01)
Designated contracting state (EPC)
AT BE CH ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
CH 660765 A5 19870615; AT E68418 T1 19911115; CA 1302155 C 19920602; DE 3612858 C1 19871001; DK 165398 B 19921123; DK 165398 C 19930405; DK 660787 A 19871216; DK 660787 D0 19871216; EP 0244035 A1 19871104; EP 0244035 B1 19911016; EP 0244035 B2 19950517; EP 0266382 A1 19880511; ES 2026895 T3 19920516; ES 2026895 T5 19950816; FI 875548 A0 19871216; FI 875548 A 19871216; GR 3002922 T3 19930125; IE 60391 B1 19940713; IE 871001 L 19871016; IT 1216923 B 19900314; IT 8720016 A0 19870407; WO 8706198 A1 19871022
DOCDB simple family (application)
CH 275586 A 19860708; AT 87200792 T 19870416; CA 535041 A 19870416; DE 3612858 A 19860416; DK 660787 A 19871216; EP 8700208 W 19870416; EP 87200792 A 19870416; EP 87902501 A 19870416; ES 87200792 T 19870416; FI 875548 A 19871216; GR 910401486 T 19911017; IE 100187 A 19870416; IT 2001687 A 19870407