LTIP389A - Process for making board - Google Patents

Process for making board

Info

Publication number
LTIP389A
LTIP389A LTIP389A LTIP389A LTIP389A LT IP389 A LTIP389 A LT IP389A LT IP389 A LTIP389 A LT IP389A LT IP389 A LTIP389 A LT IP389A LT IP389 A LTIP389 A LT IP389A
Authority
LT
Lithuania
Prior art keywords
binder
fibres
stock
added
prior
Prior art date
Application number
LTIP389A
Inventor
Leif Flodman
Jan-Erik Nordqvist
Original Assignee
Casco Nobel 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 Nobel Ab filed Critical Casco Nobel Ab
Publication of LTIP389A publication Critical patent/LTIP389A/en
Publication of LT3163B publication Critical patent/LT3163B/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

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.
LTIP389A 1992-03-13 1993-03-05 Process for making board LT3163B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200784A SE470101B (en) 1992-03-13 1992-03-13 Procedure for making board

Publications (2)

Publication Number Publication Date
LTIP389A true LTIP389A (en) 1994-07-15
LT3163B LT3163B (en) 1995-02-27

Family

ID=20385615

Family Applications (1)

Application Number Title Priority Date Filing Date
LTIP389A LT3163B (en) 1992-03-13 1993-03-05 Process for making board

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
CA2303870A1 (en) * 1997-09-18 1999-03-25 Huttenes-Albertus Chemische Werke Gmbh Method for producing moulded bodies, moulded body and installation for carrying 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
JPS56500968A (en) * 1979-07-31 1981-07-16
SE455001B (en) * 1986-10-03 1988-06-13 Rune Simonson METHOD OF MANUFACTURING PRODUCTS CONTAINING FIBERS

Also Published As

Publication number Publication date
CA2131525A1 (en) 1993-09-16
AU3771593A (en) 1993-10-05
FI96976C (en) 1996-09-25
EE9400251A (en) 1996-02-15
SE9200784L (en) 1993-09-14
LT3163B (en) 1995-02-27
FI96976B (en) 1996-06-14
NO943379D0 (en) 1994-09-12
LV10657A (en) 1995-04-20
NO943379L (en) 1994-09-12
NO301944B1 (en) 1997-12-29
GR3021653T3 (en) 1997-02-28
FI944158A0 (en) 1994-09-09
EP0663972A1 (en) 1995-07-26
EP0663972B1 (en) 1996-10-16
FI944158L (en) 1994-09-09
SE470101B (en) 1993-11-08
DE69305529T2 (en) 1997-02-20
AU665817B2 (en) 1996-01-18
RU94040866A (en) 1996-07-10
WO1993018227A1 (en) 1993-09-16
ATE144299T1 (en) 1996-11-15
ES2093417T3 (en) 1996-12-16
LV10657B (en) 1995-10-20
NZ251000A (en) 1996-11-26
SE9200784D0 (en) 1992-03-13
DE69305529D1 (en) 1996-11-21
RU2080429C1 (en) 1997-05-27

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Legal Events

Date Code Title Description
MM9A Lapsed patents

Effective date: 20000305