SE9401707L - Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper - Google Patents

Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper

Info

Publication number
SE9401707L
SE9401707L SE9401707A SE9401707A SE9401707L SE 9401707 L SE9401707 L SE 9401707L SE 9401707 A SE9401707 A SE 9401707A SE 9401707 A SE9401707 A SE 9401707A SE 9401707 L SE9401707 L SE 9401707L
Authority
SE
Sweden
Prior art keywords
parameters
chips
trees
pulp
fibre products
Prior art date
Application number
SE9401707A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9401707D0 (en
Inventor
Christer Bjoerklund
Mikael Karlsson
Ralf Olsson
Kjell Sjoeberg
Original Assignee
Christer Bjoerklund
Mikael Karlsson
Ralf Olsson
Kjell Sjoeberg
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 Christer Bjoerklund, Mikael Karlsson, Ralf Olsson, Kjell Sjoeberg filed Critical Christer Bjoerklund
Priority to SE9401707A priority Critical patent/SE9401707L/en
Publication of SE9401707D0 publication Critical patent/SE9401707D0/en
Priority to EP95920348A priority patent/EP0723656A1/en
Priority to AU25827/95A priority patent/AU2582795A/en
Priority to PCT/SE1995/000560 priority patent/WO1995031710A1/en
Publication of SE9401707L publication Critical patent/SE9401707L/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34Paper
    • G01N33/343Paper paper pulp
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3563Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

Abstract

The present invention relates to a process to determine quality properties, qualitative and quantitative parameters on cellulose fibre products such as trees, lumber, timber, chips, saw dust, pulp and paper before, during and after processing or parts thereof to a final product, crucial for product classification, sorting and monitoring and additions during different process steps characterised by treating data from spectroscopy in the wavelength region of 200-15400 nm of named fibre products by multivariate methods so-called chemometrics. The invention is not limited to the cellulose fibre products given above. Several parameters can be determined at the same time, chemical as well as physical as latent and collective parameters as processability. Further the status and changes in a process such as ageing or chemical conversion can be determined. Parameters and properties today taking hours and days to determine now can be made in minutes, seconds or parts thereof.
SE9401707A 1994-05-18 1994-05-18 Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper SE9401707L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9401707A SE9401707L (en) 1994-05-18 1994-05-18 Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper
EP95920348A EP0723656A1 (en) 1994-05-18 1995-05-17 Spectrophotometric method to measure quality and strength parameters in trees, lumber, timber, chips, saw dust, pulp and paper
AU25827/95A AU2582795A (en) 1994-05-18 1995-05-17 Spectrophotometric method to measure quality and strength parameters in trees, lumber, timber, chips, saw dust, pulp and paper
PCT/SE1995/000560 WO1995031710A1 (en) 1994-05-18 1995-05-17 Spectrophotometric method to measure quality and strength parameters in trees, lumber, timber, chips, saw dust, pulp and paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401707A SE9401707L (en) 1994-05-18 1994-05-18 Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper

Publications (2)

Publication Number Publication Date
SE9401707D0 SE9401707D0 (en) 1994-05-18
SE9401707L true SE9401707L (en) 1995-11-19

Family

ID=20394039

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401707A SE9401707L (en) 1994-05-18 1994-05-18 Spectrophotometric method to measure the quality and strength of parameters of trees, timber products, wood chips, chips, pulp and paper

Country Status (4)

Country Link
EP (1) EP0723656A1 (en)
AU (1) AU2582795A (en)
SE (1) SE9401707L (en)
WO (1) WO1995031710A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE348221T1 (en) 1998-06-22 2007-01-15 Siemens Ag METHOD FOR PROCESS CONTROL AND PROCESS OPTIMIZATION IN THE PRODUCTION OF FIBER MATS AND/OR FIBER BOARDS
DE19827743C2 (en) * 1998-06-22 2002-03-28 Siemens Ag Method and device for controlling and / or regulating a woodworking process
FI110545B (en) 1998-10-28 2003-02-14 Valtion Teknillinen Method and arrangement for measuring wood material
SE523308E (en) 2000-03-02 2007-09-26 Valmet Fibertech Ab Method for Continuous Determination of Properties of a Wood Fiber Flow for Wood Fiber Disc Production
SE516232C2 (en) * 2000-04-14 2001-12-03 Stora Kopparbergs Bergslags Ab Method of making pulp and product of the method
CA2401301C (en) * 2000-06-28 2011-07-12 Midwest Research Institute Use of a region of the visible and near infrared spectrum to predict mechanical properties of wet wood and standing trees
DE10041071C2 (en) * 2000-08-22 2002-09-26 Siemens Ag Process for monitoring thermo-mechanical wood digestion processes
GB0102688D0 (en) * 2001-02-02 2001-03-21 Enigma Nv Method for assessing remaining useful life and overall quality of laminating paper
EP1859253B1 (en) * 2005-03-04 2012-09-12 FPInnovations Method for determining chemical pulp kappa number with visible-near infrared spectrometry, and means therefor
GB0509671D0 (en) * 2005-05-12 2005-06-15 Scottish Crop Res Inst Analysis of wood
US7286956B2 (en) 2005-12-21 2007-10-23 Weyerhaeuser Company Methods of estimating the dimensional stability of a wood product from simple algebraic functions of moisture, shrinkage rates and grain angles
US7584652B2 (en) 2005-12-21 2009-09-08 Weyerhaeuser Nr Company Methods of rapidly simulating in-service warp distortion of a wood product and/or rapidly estimating shrinkage properties using electromagnetic energy
US7324904B2 (en) 2005-12-21 2008-01-29 Weyerhauser Company Methods for determining dimensional stability of wood products utilizing single and multiple sensor groups
AT504893B1 (en) * 2007-06-18 2008-09-15 Kompetenzzentrum Holz Gmbh METHOD FOR DETERMINING THE COMPOSITION OF FIBROUS MIXTURES AND / OR FORM PARTS
CN101900673A (en) * 2010-06-02 2010-12-01 北京林业大学 Method of on-line non-destructive testing paper performance
CN102605663A (en) * 2012-03-20 2012-07-25 湖南骏泰浆纸有限责任公司 Wood chip flow monitoring system and stable pulping continuous digesting method
DE102015005379B4 (en) * 2015-04-23 2017-06-01 Christoph Cramer Process for making sheets, disks and other bodies of birch bark pieces
US11254611B2 (en) 2018-11-02 2022-02-22 Gcp Applied Technologies Inc. Cement production

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5104485A (en) * 1988-05-31 1992-04-14 Hercules Incorporated Method of measuring non-aqueous constituents in a pulp slurry of a water/cellulose matrix
US5121337A (en) * 1990-10-15 1992-06-09 Exxon Research And Engineering Company Method for correcting spectral data for data due to the spectral measurement process itself and estimating unknown property and/or composition data of a sample using such method
US5206701A (en) * 1991-09-20 1993-04-27 Amoco Corporation Apparatus for near-infrared spectrophotometric analysis
US5242602A (en) * 1992-03-04 1993-09-07 W. R. Grace & Co.-Conn. Spectrophotometric monitoring of multiple water treatment performance indicators using chemometrics

Also Published As

Publication number Publication date
EP0723656A1 (en) 1996-07-31
SE9401707D0 (en) 1994-05-18
AU2582795A (en) 1995-12-05
WO1995031710A1 (en) 1995-11-23

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