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 paperInfo
- 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
Links
- 238000002798 spectrophotometry method Methods 0.000 title 1
- 239000002023 wood Substances 0.000 title 1
- 238000000034 method Methods 0.000 abstract 4
- 239000000047 product Substances 0.000 abstract 4
- 229920003043 Cellulose fiber Polymers 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000007792 addition Methods 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000004611 spectroscopical analysis Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/343—Paper paper pulp
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating 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.
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)
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)
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 |
-
1994
- 1994-05-18 SE SE9401707A patent/SE9401707L/en not_active Application Discontinuation
-
1995
- 1995-05-17 AU AU25827/95A patent/AU2582795A/en not_active Abandoned
- 1995-05-17 WO PCT/SE1995/000560 patent/WO1995031710A1/en not_active Application Discontinuation
- 1995-05-17 EP EP95920348A patent/EP0723656A1/en not_active Withdrawn
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |