Global Patent Index - EP 0971851 A1

EP 0971851 A1 2000-01-19 - METHOD AND DEVICE FOR ELECTROSTATIC CHARGING

Title (en)

METHOD AND DEVICE FOR ELECTROSTATIC CHARGING

Title (de)

VERFAHREN UND VORRICHTUNG ZUM ELEKTROSTATISCHEN AUFLADEN

Title (fr)

PROCEDE ET DISPOSITIF DE MISE EN CHARGE ELECTROSTATIQUE

Publication

EP 0971851 A1 (DE)

Application

EP 98917100 A

Priority

  • DE 19713662 A
  • EP 9801855 W

Abstract (en)

[origin: DE19713662A1] The invention relates to a method for electrostatically charging the two surfaces of at least one web with a charge of opposite polarity, before this at least one web is processed further. According to the invention, the web is fed through the gap between a pair of rollers, said rollers being positioned parallel with each other and a short distance apart from each other. The invention is characterised in that the two surfaces of the at least one web are electrostatically charged by means of rollers in the gap between said rollers.

IPC 1-7 (main, further and additional classification)

B65H 27/00; B41F 9/00

IPC 8 full level (invention and additional information)

B41F 9/00 (2006.01); B65H 20/02 (2006.01); B65H 27/00 (2006.01)

CPC (invention and additional information)

B65H 27/00 (2013.01); B65H 2301/5132 (2013.01); B65H 2404/1451 (2013.01)

Citation (search report)

See references of WO 9843905A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI NL SE

DOCDB simple family

DE 19713662 A1 19981008; AT 210593 T 20011215; AT 222210 T 20020815; AU 5322498 A 19981022; AU 7042598 A 19981022; AU 736011 B2 20010726; DE 29723999 U1 19991209; DE 59707978 D1 20020919; DE 59802440 D1 20020124; DK 0971851 T3 20020408; EP 0923500 A1 19990623; EP 0923500 B1 20020814; EP 0971851 A1 20000119; EP 0971851 B1 20011212; ES 2169509 T3 20020701; ES 2181044 T3 20030216; JP 2000505032 A 20000425; JP 2000509697 A 20000802; JP 3258034 B2 20020218; JP 3284503 B2 20020520; US 6159555 A 20001212; US 6445562 B1 20020903; WO 9843904 A1 19981008; WO 9843905 A1 19981008