Global Patent Index - EP 0988418 A1

EP 0988418 A1 2000-03-29 - WET END, METHOD FOR THE PRODUCTION OF A FIBROUS MATERIAL WEB AND USE OF WET END

Title (en)

WET END, METHOD FOR THE PRODUCTION OF A FIBROUS MATERIAL WEB AND USE OF WET END

Title (de)

NASSPARTIE, VERFAHREN ZUR HERSTELLUNG EINER FASERSTOFFBAHN UND VERWENDUNG DER NASSPARTIE

Title (fr)

PARTIE HUMIDE, PROCEDE DE PRODUCTION D'UNE BANDE DE MATIERE FIBREUSE ET UTILISATION DE LADITE PARTIE HUMIDE

Publication

EP 0988418 A1 (DE)

Application

EP 97952953 A

Priority

  • DE 29623297 U
  • EP 9707094 W

Abstract (en)

[origin: DE19756203A1] At least one press in the forming section of the wet end of a machine making a web of fibrous material (especially paper or paper board) is a long nip press (20) having a nip which is elongated in the direction (L) of web travel. The press nip is provided in an area in which the dry solids content of the formed web (10) entering the press nip is less than or equal to 15%, and preferably less than or equal to 12%. Preferably either one (12) or both of the forming wires passes through the press nip, or the web may be fed to the nip by a water-removing transfer belt which may be a felt, a wire, and/or a perforated belt. Alternatively, the web may be conveyed through the nip between a symmetrical configuration of a fine-weave support belt, a water-removing belt, and an impermeable press belt on either side. The support belt may be a felt or a wire.

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

D21F 9/00; D21F 1/00; D21F 1/48

IPC 8 full level (invention and additional information)

D21F 3/02 (2006.01); D21F 3/04 (2006.01)

CPC (invention and additional information)

D21F 3/045 (2013.01); D21F 3/04 (2013.01)

Citation (search report)

See references of WO 9828489A1

Designated contracting state (EPC)

AT DE FI SE

EPO simple patent family

DE 19756203 A1 19980924; CA 2247085 A1 19980702; EP 0988418 A1 20000329; US 6235158 B1 20010522; WO 9828489 A1 19980702

INPADOC legal status


2004-02-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030819

2001-10-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010829

2000-12-20 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VOITH PAPER PATENT GMBH

2000-03-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980807

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE FI SE