FR2291022A1 - Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece - Google Patents

Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece

Info

Publication number
FR2291022A1
FR2291022A1 FR7535243A FR7535243A FR2291022A1 FR 2291022 A1 FR2291022 A1 FR 2291022A1 FR 7535243 A FR7535243 A FR 7535243A FR 7535243 A FR7535243 A FR 7535243A FR 2291022 A1 FR2291022 A1 FR 2291022A1
Authority
FR
France
Prior art keywords
wetting agent
addition
heat treating
wet processing
before pressing
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.)
Granted
Application number
FR7535243A
Other languages
French (fr)
Other versions
FR2291022B3 (en
Inventor
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 FR2291022A1 publication Critical patent/FR2291022A1/en
Application granted granted Critical
Publication of FR2291022B3 publication Critical patent/FR2291022B3/fr
Granted 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

Landscapes

  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Fibre-board is produced by (a) mixing the fibres with water in a mixing vessel, (b) pumping the suspension to a drainage chamber, (c) dewatering on a sieve to form a fleece, and (d) subjecting the fleece to pressing and/or heat treatment. A wetting agent is added to the material before step (d). Process gives relatively short pressing times, low heat consumption during heat treatment and good quality plates, esp. having good hydrophobic properties.
FR7535243A 1974-11-12 1975-11-10 Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece Granted FR2291022A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742453517 DE2453517A1 (en) 1974-11-12 1974-11-12 PROCESS FOR MANUFACTURING FIBER BOARD BY THE WET PROCESS

Publications (2)

Publication Number Publication Date
FR2291022A1 true FR2291022A1 (en) 1976-06-11
FR2291022B3 FR2291022B3 (en) 1978-08-18

Family

ID=5930586

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535243A Granted FR2291022A1 (en) 1974-11-12 1975-11-10 Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece

Country Status (7)

Country Link
AT (1) AT343342B (en)
DE (1) DE2453517A1 (en)
FI (1) FI753171A (en)
FR (1) FR2291022A1 (en)
IT (1) IT1070521B (en)
NO (1) NO753774L (en)
SE (1) SE7512436L (en)

Also Published As

Publication number Publication date
AT343342B (en) 1978-05-26
FR2291022B3 (en) 1978-08-18
SE7512436L (en) 1976-05-13
FI753171A (en) 1976-05-13
ATA821575A (en) 1977-09-15
NO753774L (en) 1976-05-13
IT1070521B (en) 1985-03-29
DE2453517A1 (en) 1976-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse