DE69305529T2 - Method of making a plate - Google Patents

Method of making a plate

Info

Publication number
DE69305529T2
DE69305529T2 DE69305529T DE69305529T DE69305529T2 DE 69305529 T2 DE69305529 T2 DE 69305529T2 DE 69305529 T DE69305529 T DE 69305529T DE 69305529 T DE69305529 T DE 69305529T DE 69305529 T2 DE69305529 T2 DE 69305529T2
Authority
DE
Germany
Prior art keywords
binder
fibres
stock
added
prior
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.)
Expired - Fee Related
Application number
DE69305529T
Other languages
German (de)
Other versions
DE69305529D1 (en
Inventor
Leif Flodman
Jan-Erik Nordqvist
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.)
Casco Products AB
Original Assignee
Casco Products AB
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 Casco Products AB filed Critical Casco Products AB
Application granted granted Critical
Publication of DE69305529D1 publication Critical patent/DE69305529D1/en
Publication of DE69305529T2 publication Critical patent/DE69305529T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • D21H23/16—Addition before or during pulp beating or refining

Abstract

In a process for making board according to the wet method, a stock is prepared from fibres produced from a fibrous raw material, and a binder is added prior to dewatering and pressing. The process is distinguished by adding the binder to the fibres before the preparation of the stock. The binder may be a water-soluble binder which is precipitated and fixed to the fibres by acidification. Acidification may take place in connection with the preparation of the stock or prior thereto as well as prior to the addition of the binder. The binder can be added to the fibres in the blow line from the defibrator for producing the fibres from the fibrous raw material, or it may be added to the fibres before the defibrator.
DE69305529T 1992-03-13 1993-03-09 Method of making a plate Expired - Fee Related DE69305529T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9200784A SE470101B (en) 1992-03-13 1992-03-13 Procedure for making board
PCT/SE1993/000205 WO1993018227A1 (en) 1992-03-13 1993-03-09 Process for making board

Publications (2)

Publication Number Publication Date
DE69305529D1 DE69305529D1 (en) 1996-11-21
DE69305529T2 true DE69305529T2 (en) 1997-02-20

Family

ID=20385615

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69305529T Expired - Fee Related DE69305529T2 (en) 1992-03-13 1993-03-09 Method of making a plate

Country Status (16)

Country Link
EP (1) EP0663972B1 (en)
AT (1) ATE144299T1 (en)
AU (1) AU665817B2 (en)
CA (1) CA2131525A1 (en)
DE (1) DE69305529T2 (en)
EE (1) EE9400251A (en)
ES (1) ES2093417T3 (en)
FI (1) FI96976C (en)
GR (1) GR3021653T3 (en)
LT (1) LT3163B (en)
LV (1) LV10657B (en)
NO (1) NO301944B1 (en)
NZ (1) NZ251000A (en)
RU (1) RU2080429C1 (en)
SE (1) SE470101B (en)
WO (1) WO1993018227A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1142299A (en) * 1997-09-18 1999-04-05 Huttenes-Albertus Chemische Werke Gmbh Method for producing moulded bodies, moulded body and installation for ca rrying out said method
US7368037B2 (en) 2003-05-21 2008-05-06 Masonite Corporation Refiner steam separation system for reduction of dryer emissions
LT6163B (en) 2013-10-15 2015-06-25 Vilniaus Dailės Akademija Plant fiber panels and their method of manufacture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU55657A1 (en) 1968-03-11 1969-10-02
US3649396A (en) 1970-01-22 1972-03-14 Motala Verkstad Ab Method of making rigid particle boards or the like
WO1981000422A1 (en) * 1979-07-31 1981-02-19 K Holbek Process for the preparation of fibers
SE455001B (en) * 1986-10-03 1988-06-13 Rune Simonson METHOD OF MANUFACTURING PRODUCTS CONTAINING FIBERS

Also Published As

Publication number Publication date
EP0663972B1 (en) 1996-10-16
ATE144299T1 (en) 1996-11-15
GR3021653T3 (en) 1997-02-28
RU2080429C1 (en) 1997-05-27
FI96976B (en) 1996-06-14
EE9400251A (en) 1996-02-15
RU94040866A (en) 1996-07-10
WO1993018227A1 (en) 1993-09-16
FI944158A0 (en) 1994-09-09
LV10657A (en) 1995-04-20
LV10657B (en) 1995-10-20
NZ251000A (en) 1996-11-26
EP0663972A1 (en) 1995-07-26
SE9200784D0 (en) 1992-03-13
NO943379L (en) 1994-09-12
LTIP389A (en) 1994-07-15
FI944158A (en) 1994-09-09
NO301944B1 (en) 1997-12-29
LT3163B (en) 1995-02-27
FI96976C (en) 1996-09-25
SE470101B (en) 1993-11-08
NO943379D0 (en) 1994-09-12
ES2093417T3 (en) 1996-12-16
AU665817B2 (en) 1996-01-18
AU3771593A (en) 1993-10-05
DE69305529D1 (en) 1996-11-21
CA2131525A1 (en) 1993-09-16
SE9200784L (en) 1993-09-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee