FR2292582A1 - Fibreboard mfg process - has structured pressure redn programme for evapn. of water in wet fibre feed material (SW210676) - Google Patents

Fibreboard mfg process - has structured pressure redn programme for evapn. of water in wet fibre feed material (SW210676)

Info

Publication number
FR2292582A1
FR2292582A1 FR7536768A FR7536768A FR2292582A1 FR 2292582 A1 FR2292582 A1 FR 2292582A1 FR 7536768 A FR7536768 A FR 7536768A FR 7536768 A FR7536768 A FR 7536768A FR 2292582 A1 FR2292582 A1 FR 2292582A1
Authority
FR
France
Prior art keywords
evapn
fibreboard
water
programme
feed material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7536768A
Other languages
French (fr)
Inventor
Alfred Van Hullen
Herbert Nopper
Heinz Sachse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becker and Van Huellen GmbH and Co
Original Assignee
Becker and Van Huellen GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Becker and Van Huellen GmbH and Co filed Critical Becker and Van Huellen GmbH and Co
Publication of FR2292582A1 publication Critical patent/FR2292582A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/04—Pressing

Abstract

Wet fibres are inserted into a heated press where heat and pressure remove the water and compress the fibres into a board. For the evapn. stage, the pressure is reduced to 50% of the max. pressure to be used until there is a residual humidity of 8-10% in the material. The pressure is then slowly decreased while the fibre material is compressed to the required density and thickness, to give a residual humidity of 6-8%. The system reduces the amt. of press time required for the mfr. of fibreboard, and the finished material has a humidity level which eliminates the need for elimination.
FR7536768A 1974-11-26 1975-11-25 Fibreboard mfg process - has structured pressure redn programme for evapn. of water in wet fibre feed material (SW210676) Withdrawn FR2292582A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742455818 DE2455818A1 (en) 1974-11-26 1974-11-26 PROCESS FOR MANUFACTURING FIBER BOARDS BY THE WET PROCESS IN A HOT PRESS

Publications (1)

Publication Number Publication Date
FR2292582A1 true FR2292582A1 (en) 1976-06-25

Family

ID=5931735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7536768A Withdrawn FR2292582A1 (en) 1974-11-26 1975-11-25 Fibreboard mfg process - has structured pressure redn programme for evapn. of water in wet fibre feed material (SW210676)

Country Status (7)

Country Link
AT (1) AT342286B (en)
DE (1) DE2455818A1 (en)
FI (1) FI753302A (en)
FR (1) FR2292582A1 (en)
IT (1) IT1070523B (en)
NO (1) NO753926L (en)
SE (1) SE7512557L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534850A1 (en) * 1982-10-20 1984-04-27 Pamart Alain Process and plant for the manufacture of fibreboards by wet route.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523006C2 (en) * 2002-07-04 2004-03-23 Metso Paper Inc Method and apparatus for pressure control in multi-stage pressing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534850A1 (en) * 1982-10-20 1984-04-27 Pamart Alain Process and plant for the manufacture of fibreboards by wet route.

Also Published As

Publication number Publication date
SE7512557L (en) 1976-05-28
IT1070523B (en) 1985-03-29
DE2455818A1 (en) 1976-08-12
FI753302A (en) 1976-05-27
AT342286B (en) 1978-03-28
NO753926L (en) 1976-05-28
ATA821475A (en) 1977-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse