GB1129733A - Improvements relating to methods for increasing the surface smoothness and the density of the surface layer of lignocellulose-containing board materials - Google Patents

Improvements relating to methods for increasing the surface smoothness and the density of the surface layer of lignocellulose-containing board materials

Info

Publication number
GB1129733A
GB1129733A GB1424867A GB1424867A GB1129733A GB 1129733 A GB1129733 A GB 1129733A GB 1424867 A GB1424867 A GB 1424867A GB 1424867 A GB1424867 A GB 1424867A GB 1129733 A GB1129733 A GB 1129733A
Authority
GB
United Kingdom
Prior art keywords
board
pressure
density
seconds
lignocellulose
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
GB1424867A
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.)
Stiftelsen Wallboardindustriens Forskningsinstitut
Original Assignee
Stiftelsen Wallboardindustriens Forskningsinstitut
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 Stiftelsen Wallboardindustriens Forskningsinstitut filed Critical Stiftelsen Wallboardindustriens Forskningsinstitut
Publication of GB1129733A publication Critical patent/GB1129733A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

1,129,733. Woodworking. STIFTELSEN WALLBOARDINDUSTRIENS FORSKNINGSINSTITUT. 29 March, 1967 [30 March, 1966], No. 14248/67. Heading B5L. [Also in Division D2] A method of treating lignocellulosic boards in order to increase the density and surface smoothness of the surface layer of the board comprises contacting the surface of the board with a highly polished heating surface having a surface temperature in the range 300‹ C. to 500‹ C., at a pressure not exceeding 15 kg/cm.<SP>2</SP> for a period not exceeding 15 seconds. The board may be cardboard, carton board, particle board, insulating board, semi-hard board and hardboard and asphalted board. Preferably the temperature is between 350‹ C. to 450‹ C. and the period does not exceed 10 seconds and the pressure 3 kg/cm.<SP>2</SP>. After 2 to 5 seconds, the pressure may be reduced to 0À2 to 1 kg/cm.<SP>2</SP>. Both surfaces of the material may be treated. The pressure may be applied intermittently.
GB1424867A 1966-03-30 1967-03-29 Improvements relating to methods for increasing the surface smoothness and the density of the surface layer of lignocellulose-containing board materials Expired GB1129733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE427666 1966-03-30

Publications (1)

Publication Number Publication Date
GB1129733A true GB1129733A (en) 1968-10-09

Family

ID=20263846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1424867A Expired GB1129733A (en) 1966-03-30 1967-03-29 Improvements relating to methods for increasing the surface smoothness and the density of the surface layer of lignocellulose-containing board materials

Country Status (1)

Country Link
GB (1) GB1129733A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994026485A1 (en) * 1993-05-18 1994-11-24 Valtion Teknillinen Tutkimuskeskus Method for compressive shape-drying of wood
US5425851A (en) * 1991-10-23 1995-06-20 Westvaco Corporation Method for improving the printability of web offset paper
FR2883788A1 (en) * 2005-04-04 2006-10-06 Edmond Pierre Picard Solid and reconstituted wood e.g. plywood, processing method, involves disposing wood pieces of lot, in contact with thermally controlled conductive presses, where temperature of pieces is controlled with respect to time and intensity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425851A (en) * 1991-10-23 1995-06-20 Westvaco Corporation Method for improving the printability of web offset paper
WO1994026485A1 (en) * 1993-05-18 1994-11-24 Valtion Teknillinen Tutkimuskeskus Method for compressive shape-drying of wood
US5685353A (en) * 1993-05-18 1997-11-11 Valtion Teknillinen Tutkimuskeskus Method for compressive shape-drying of wood
FR2883788A1 (en) * 2005-04-04 2006-10-06 Edmond Pierre Picard Solid and reconstituted wood e.g. plywood, processing method, involves disposing wood pieces of lot, in contact with thermally controlled conductive presses, where temperature of pieces is controlled with respect to time and intensity
WO2006106217A1 (en) * 2005-04-04 2006-10-12 Edmond-Pierre Picard Wood heat treating method, a plant for carrying out said method and heat treated wood

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