Global Patent Index - EP 0948677 B1

EP 0948677 B1 2000-08-30 - METHOD FOR PRODUCING PAPER

Title (en)

METHOD FOR PRODUCING PAPER

Title (de)

VERFAHREN ZUR HERSTELLUNG VON PAPIER

Title (fr)

PROCEDE DE PRODUCTION DE PAPIER

Publication

EP 0948677 B1 (DE)

Application

EP 97952902 A

Priority

  • DE 19654390 A
  • EP 9706857 W

Abstract (en)

[origin: DE19654390A1] The invention relates to a method for producing paper by dehydrating, on a paper machine, paper pulp containing processing chemicals. According to said method, the paper machine wire is supplied, via a headbox, with a principal stream of paper pulp and a diluting stream consisting of returned water, containing at least 5 weight percent of the processing chemicals and accounting for between 5 and 35 % of the total headbox supply. The papers produced in this way have an excellent formation cross section and outstanding ash distribution.

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

D21H 23/04

IPC 8 full level (invention and additional information)

D21H 23/04 (2006.01); D21F 1/08 (2006.01); D21H 23/24 (2006.01); D21H 17/37 (2006.01); D21H 17/54 (2006.01); D21H 21/10 (2006.01)

CPC (invention and additional information)

D21H 23/24 (2013.01); D21F 1/08 (2013.01); D21H 17/375 (2013.01); D21H 17/54 (2013.01); D21H 21/10 (2013.01)

Designated contracting state (EPC)

AT CH DE ES FI FR GB IT LI NL PT SE

EPO simple patent family

DE 19654390 A1 19980702; AT 195985 T 20000915; CA 2256431 A1 19980709; CA 2256431 C 20051108; EP 0948677 A1 19991013; EP 0948677 B1 20000830; ES 2151296 T3 20001216; JP 2001508137 A 20010619; PT 948677 E 20010131; US 6083348 A 20000704; WO 9829603 A1 19980709

INPADOC legal status


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2000-12-29 [ET] FR: TRANSLATION FILED

2000-12-16 [REG ES FG2A] DEFINITIVE PROTECTION

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2000-10-26 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: ING. C. GREGORJ S.P.A.

2000-10-05 [REF] CORRESPONDS TO:

- Document: DE 59702299 20001005

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