GB1006293A - Manufacture of wood fiberboard - Google Patents

Manufacture of wood fiberboard

Info

Publication number
GB1006293A
GB1006293A GB23906/62A GB2390662A GB1006293A GB 1006293 A GB1006293 A GB 1006293A GB 23906/62 A GB23906/62 A GB 23906/62A GB 2390662 A GB2390662 A GB 2390662A GB 1006293 A GB1006293 A GB 1006293A
Authority
GB
United Kingdom
Prior art keywords
fibres
wood
furnish
chips
web
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
Application number
GB23906/62A
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.)
Johns Manville Corp
Johns Manville
Original Assignee
Johns Manville Corp
Johns Manville
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 Johns Manville Corp, Johns Manville filed Critical Johns Manville Corp
Publication of GB1006293A publication Critical patent/GB1006293A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Wood fibreboard having a thickness of at least 1/4 inch and a density of 10 to 75 lb/ft3 is made by digesting hardwood chips under pressure up to 300 lb/in2 in caustic alkali solution at a temperature of 70 to 200 DEG F. for a time of 1/4 to 2 hours, separating the chips from the digestion liquor, refining the chips to a fibrous mass having a TAPPI drainage time of 10 to 60 seconds, forming an aqueous furnish of these fibres, applying this furnish to a foraminous support and partially deviating it to form a web, and drying the web. An insulating board of density 10 to 35 lb/ft3 is obtained without hot-pressing, or a hardboard of 35 to 75 lb/ft3 by accomplishing at least part of the drying in a hot press. The black liquor from the digestion step can be fortified with 50% caustic soda solution and reused. The furnish may also include other fibres, e.g. of ground wood, may have its pH adjusted with sulphuric acid or alum and may contain a petroleum wax emulsion, or asphalt emulsion or pigments. Fibreboard according to the present invention can be united with a board of ground-wood fibres by pressing the two together.
GB23906/62A 1961-06-22 1962-06-21 Manufacture of wood fiberboard Expired GB1006293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US118883A US3202569A (en) 1961-06-22 1961-06-22 Cold caustic fiberboard manufacture

Publications (1)

Publication Number Publication Date
GB1006293A true GB1006293A (en) 1965-09-29

Family

ID=22381332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23906/62A Expired GB1006293A (en) 1961-06-22 1962-06-21 Manufacture of wood fiberboard

Country Status (3)

Country Link
US (1) US3202569A (en)
BE (1) BE619270A (en)
GB (1) GB1006293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1059152A1 (en) * 1999-05-31 2000-12-13 Glunz Ag Process for producing a workpiece from cellulose fibers, especially in the form of a fibre board

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060450A (en) * 1972-09-01 1977-11-29 Westinghouse Electric Corporation High yield saturating paper
US3873412A (en) * 1974-04-01 1975-03-25 Bauer Bros Co Mechanically refining a mixture of kraft and semichemical pulp
US4411738A (en) * 1982-04-30 1983-10-25 United States Gypsum Company Press cycle reduction for wet pressed hardboard
US7771565B2 (en) * 2006-02-21 2010-08-10 Packaging Corporation Of America Method of pre-treating woodchips prior to mechanical pulping

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1709322A (en) * 1924-11-07 1929-04-16 Brown Co Wood fiber for high-grade paper and derivative manufacture
US1857316A (en) * 1927-05-26 1932-05-10 Us Nat Bank Manufacture of wall-board and the like
US2030626A (en) * 1934-04-27 1936-02-11 Insulite Co Fibrous product and method of making the same
NL42926C (en) * 1934-11-22
US2162943A (en) * 1935-11-16 1939-06-20 Barrett Co Felt making process
US2224135A (en) * 1936-12-01 1940-12-10 Masonite Corp Making board products and recovering water solubles from fibrous ligno-cellulose material
US2749240A (en) * 1953-01-17 1956-06-05 Pulp Paper Res Inst Production of cellulose pulp
US2893909A (en) * 1954-06-09 1959-07-07 Bauer Bros Co Combined digestion and refining of paper pulp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1059152A1 (en) * 1999-05-31 2000-12-13 Glunz Ag Process for producing a workpiece from cellulose fibers, especially in the form of a fibre board

Also Published As

Publication number Publication date
US3202569A (en) 1965-08-24
BE619270A (en) 1962-12-24

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