WO1999045367A1 - A method for controlling a process for the production of a cellulose fibre containing product - Google Patents
A method for controlling a process for the production of a cellulose fibre containing product Download PDFInfo
- Publication number
- WO1999045367A1 WO1999045367A1 PCT/SE1999/000144 SE9900144W WO9945367A1 WO 1999045367 A1 WO1999045367 A1 WO 1999045367A1 SE 9900144 W SE9900144 W SE 9900144W WO 9945367 A1 WO9945367 A1 WO 9945367A1
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- WO
- WIPO (PCT)
- Prior art keywords
- substances
- value
- property
- product
- sample data
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 229920003043 Cellulose fiber Polymers 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 48
- 238000007620 mathematical function Methods 0.000 claims abstract description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 41
- 239000003292 glue Substances 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 14
- 238000004611 spectroscopical analysis Methods 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 13
- 238000004458 analytical method Methods 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 239000012792 core layer Substances 0.000 claims description 7
- 238000000491 multivariate analysis Methods 0.000 claims description 7
- 238000010238 partial least squares regression Methods 0.000 claims description 6
- 239000013074 reference sample Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 4
- 238000000513 principal component analysis Methods 0.000 claims description 4
- 238000012628 principal component regression Methods 0.000 claims description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 3
- 229920003180 amino resin Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 9
- 229920001807 Urea-formaldehyde Polymers 0.000 description 8
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004848 polyfunctional curative Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000004497 NIR spectroscopy Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229940106135 cellulose Drugs 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
-
- 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
Definitions
- the present invention relates to a method for controlling a process for the pro- duction of a cellulose fibre containing product from cellulose fibre containing raw material, in particular a process for the production of wood based panels such as particleboards.
- the production of cellulose fibre containing products often involve addition of different substances during the production process.
- the purpose of the addition may be to facilitate the production process per se, or to effect the resulting product, or both.
- Ad- dition of various glues, often consisting of a glue system comprising a resin and a hardener, in the production of wood based panels is exemplary of an addition in order to effect the resulting product.
- An important parameter in this connection is often the proportion between the components making up the substance, if more than one, such as e.g. the proportions between resin and hardener in a glue, or the proportions between urea and formaldehyd in a glue containing those components.
- Another important parameter may be the proportions between different added substances, which are destined to different parts of the panel, e.g. in different layers of the panel.
- WO 97/04299 relates to a method for controlling process variables influencing parameters of wood based panels, including glue amounts and wax amounts, which method comprises analysing the raw material by means of a spectrometric method, linking the obtained spectral data into a combination with desired parameters, and comparing said combination with reference combinations consisting of reference data from reference raw material linked with known parameters of said reference material, whereby the reference combinations have been calibrated to known variables by means of multi- variate analysis.
- the problem to be solved by the present invention is thus to enable such controlling.
- the present invention involves a method for controlling a process for the production of a cellulose fibre containing product from cellulose fibre contain- 2 ing raw material, during which process various substances are added, at least two of which substantially influence the same property of said product in correspondence to the relation between said substances, whereby a calibration model has been established by way of a procedure comprising linking known reference values for said product property and corresponding known reference relations between the substances, by means of a mathematical function; the method comprises the steps of
- the present method presents a plurality of advantages to the producer of cellu- lose fibre containing products.
- a particleboard producer for instance, can regulate one or more properties of the produced boards in a very fast and economical way.
- the calibration model has been established by means of a multivariate analysis; this also implies that the same kind of multivariate analysis is applied when the calibration model is applied on the actual relation.
- the multivariate analysis may, for instance, be principal component analysis (PCA), partial least squares regression (PLS), principal component regression (PCR), multilinear regression analysis (MLR), discriminant analysis, or any other suitable method for multivariate analysis.
- PCA principal component analysis
- PLS partial least squares regression
- PCR principal component regression
- MLR multilinear regression analysis
- discriminant analysis or any other suitable method for multivariate analysis.
- the PLS method is disclosed in detail in Carisson R., "Design and optimization in organic synthesis", B.G.M. Vandeginste, O. M. Kvalheim, Eds., “Data handling in science and technology", (Elsevier, 1992), vol. 8, incorporated herein by reference.
- PCA principal component analysis
- PLS partial least squares regression
- PCR principal component regression
- MLR multilinear regression analysis
- the best fitting plane for the parameters as a function of the spectra is defined, using least squares techniques to define each boundary of the plane. This plane is then used to recognise and assign a predicted value to an unknown parameter value.
- the cellulose fibre containing product is a wood based panel.
- the wood based panel may comprise two or more layers.
- One of the substances may for instance be added to substantially stay between the layers, in order to e.g. agglutinate (i.e. glue together) the layers.
- one substance may be added to be substantially contained within one of the layers, in order to e.g. bind wood based particles in a particle board, or to provide the layer with some property, or to enhance some already present property.
- the wood based panel is preferably a board, such as a particleboard, a medium density fibre board (MDF), a waferboard, an oriented strand board (OSB), a hardboard, or a board of plywood; in particular, the board is a particleboard.
- MDF medium density fibre board
- OSB oriented strand board
- the board is a particleboard.
- Background information on particleboard and the processes for the manufacturing thereof is set forth in "Modem Particleboard & dry-process fibreboard manufacturing" by Thomas M. Maloney (1993), (cf. especially Chapter 4 and 5), which by reference is incorporated herein in its entirety.
- the two (or more) substances which have a substantial influence on the same property of said product in correspondence to the relation between said substances may very well lack any effect, or only have a weak effect on that (or any other) property when used isolated from each other.
- This basically, is the case when, for instance, one substance is a resin and another one is a corresponding hardener.
- the effect of the substances may in another embodiment be of basically the same magnitude, e.g. when using two urea-formaldehyde glues having different U/F proportions.
- the property of interest can be brought to- wards its target value by controlling the U/F proportion of an actually added, mixed glue within a range defined by the U/F proportions of the two glues, by applying the present 4 method on the relation between the added and mixed amounts of the glues. If instead the glues are added to different layers of a board, and thus basically are not mixed with each other, the property of interest can still be controlled, and in this case the actual relation between the added, but not mixed, substances is used in the construction and application of the calibration model.
- each one of the substances is a glue containing an amino resin, such as for instance a urea-formaldehyde resin (UF), a melamine-urea- formaidehyde resin (MUF), or a phenol- formaldehyde resin (PF), whereby the substances may differ from each other with regard to e.g. the content of formaldehyde.
- an amino resin such as for instance a urea-formaldehyde resin (UF), a melamine-urea- formaidehyde resin (MUF), or a phenol- formaldehyde resin (PF)
- UF urea-formaldehyde resin
- MAF melamine-urea- formaidehyde resin
- PF phenol- formaldehyde resin
- MDI isocyanate resin
- the product properties that can be controlled by the present method are for instance density, density profile, internal bond strength, thickness swelling, absorption value, permeability value, perforator value, modulus of rapture (MOR), modulus of elasticity (MOE), parameters relating to volatile organic compounds (VOC), and emission chamber value; this, however, is not an exhaustive list of controllable properties. Basically any measurable property of the product may be controlled by the present method.
- the calibration model involves linking said known values for said product property with the corresponding known combined amounts of the substances added and the corresponding relations between the substances in said amounts; and the application of the calibration model involves linking of the actual relations between the substances and the corresponding relations between the substances in said amounts in order to predict the actual value for said product property.
- the calibration model has been established by way of a procedure comprising analysing reference raw material, by means of an analysis method, to provide reference sample data, and linking said reference sample data with known values for said product property and correspond- ing known relations between the substances, by means of said mathematical function; the method additionally comprises the step of analysing the raw material, by means of said analysis method, to provide sample data; and the application of the calibration model involves linking of the sample data with the relation between the substances in order to predict the actual value for said product property.
- a particleboard producer may manufacture boards with high surface strength even from wooden raw material of inferior quality by compensating the lacking quality with a urea-formaldehyde glue having a high molar proportion of formaldehyde, which is used in the surface layer of the board, while the control of the dosage and the molar proportion of formaldehyde in the glue in the core layer based upon other desired properties such as for instance a specified density and/or a low formaldehyde emission value.
- the sample data is preferably transferred into latent variables before being linked with the target value, as are preferably the reference sample data before they are linked with said known values.
- the analysis method is a spectrometric method.
- the sample data as well as the and the references sample data is preferably processed in this instance to reduce noise and is also suitably adjusted for drift and diffuse light scatter, for instance by means of the Kubelka-Munk transformation (P. Kubeika, F. Munk, Z. Tech. Physik 12, 593 (1931), inco ⁇ orated herein by reference), which takes account of abso ⁇ tion and scatter, the Multiplicative Scatter Correction (P. Geladi, D. MacDougall, H. Martens, Appl.
- Linearisation can also be accomplished by use of the Fourier transformation, or by use of the Standard Normal Variate transformation (R. J. Barnes, M. S. Dhanoa and S. J. Lister, Appl. Spectrosc, Vol. 43, number 5, pp. 772-777 (1989), inco ⁇ orated herein by reference).
- This noise reduction/drift and diffuse light scatter-adjustment is suitably done before the data is linked as set forth above.
- the spectrometric method may be an abso ⁇ tion, reflectance, emission or transmission spectrometric method, or any other conceivable spectrometric method.
- the spectrometric method may relate to any suitable kind of radiation at any wavelength range, it is preferred to use a spectrometric method operating in the wavelength range from about 180 to about 2500 nm, particularly from about 400 to about 2500 nm, and especially from about 1000 nm to about 2500 nm. It is particularly preferred to operate the present method in the near-infrared radiation (NIR) range.
- NIR near-infrared radiation
- the spectrometric analysis can be performed by on-line, in-line or at- line optical fibre probing, or by taking individual samples for separate analysis.
- the spectra are preferably subjected to further data treatment using values from several discrete wavelengths from each particular spectrum.
- the radiation used in the spectrometric method preferably impinges directly on the raw material.
- the produced cellulose fibre containing product is a particleboard comprising one core layer and two surface layers;
- the cellulose fibre contains raw material comprises sawdust, shavings, chips or shavings from round wood, or a combination thereof;
- the controlled product property is density, density profile, internal bond strength, MOR, MOE, thickness swelling, abso ⁇ tion value, permeability value, perforator value, or emission chamber value;
- the substances are glues obtained by mixing formaldehyde, urea, and optionally any other suitable component; and the glues differ from each other with regard to the proportions between formaldehyde and urea, whereby a first glue holds a higher proportion between formaldehyde and urea than a second glue.
- EP 564,013 which relates to a method and a device for mixing binders using at least two components which are flowed from separate storage containers towards a common mixing point.
- the storage containers are continuously weighed, and their change of weight per unit of time is determined.
- Particleboards having a core layer and two surface layers were produced by mixing core and surface particles with urea-formaldehyde resin glue, forming the mixtures into 330 x 500 mm sheets, and pressing the sheets for 2.7 minutes at 185°C.
- Two slightly different urea-formaldehyde resin glues were used, both based on the same kind of urea-formaldehyde resin, Cascorit UF 1110 from Casco Products, Industrial Resins Division, Sundsvall, Sweden.
- One glue, glue A had a formaldehyde to urea ratio, F/U ratio, of 0.9 and the other glue, glue B, had a F/U ratio of 1.3.
- Both glues contained 0.4 wt-% of wax (Kenosize 4550 from Casco Products, Sweden).
- the viscosities of the glues were about 300 mPas for glue A and about 800 mPas for glue B.
- Glue A and B were added to the core and the surface layers in varying amounts, providing varying F/U ratios in the core and the surface layers, according to Table I below.
- Ammonium sulphate was used as hardener: 3.0 wt-% was added to the core layer and 1.0 wt-% to the surface layers.
- PV perforator value
- Partial least square regressions were carried out based on the values indicated above in order to find correlations between the obtained values in Table II and the parameters of Table I.
- the obtained coefficients of regression for these correlations are disclosed in Table III below.
- the coefficient of regression of an ideal correlation is 1.
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Artificial Filaments (AREA)
- Paper (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ506556A NZ506556A (en) | 1998-03-05 | 1999-02-04 | Raw material from cellulose fibre for the production of wood based panels such as particleboard |
EEP200000496A EE04290B1 (en) | 1998-03-05 | 1999-02-04 | A method for controlling the manufacturing process of articles containing cellulose fibers |
AU26492/99A AU748287B2 (en) | 1998-03-05 | 1999-02-04 | A method for controlling a process for the production of a cellulose fibre containing product |
SK1310-2000A SK286278B6 (en) | 1998-03-05 | 1999-02-04 | A method for controlling a process for the production of a cellulose fibre containing product |
EP99906635A EP1060382B1 (en) | 1998-03-05 | 1999-02-04 | A method for controlling a process for the production of a cellulose fibre containing product |
PL99342764A PL188440B1 (en) | 1998-03-05 | 1999-02-04 | Method of controlling a process for manufacturing a cellulose fibre containing product |
DE69937675T DE69937675T2 (en) | 1998-03-05 | 1999-02-04 | A method of controlling a process for producing a zullulose fiber-containing product |
CA002322278A CA2322278C (en) | 1998-03-05 | 1999-02-04 | A method for controlling a process for the production of a cellulose fibre containing product |
JP2000534855A JP2002505963A (en) | 1998-03-05 | 1999-02-04 | Method for controlling production process of cellulose fiber-containing product |
DK99906635T DK1060382T3 (en) | 1998-03-05 | 1999-02-04 | Process for controlling a process for producing a cellulosic fibrous product |
NO20004358A NO325489B1 (en) | 1998-03-05 | 2000-09-01 | Process for controlling a process for producing a cellulosic fibrous product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98850031 | 1998-03-05 | ||
EP98850031.0 | 1998-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999045367A1 true WO1999045367A1 (en) | 1999-09-10 |
Family
ID=8236963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1999/000144 WO1999045367A1 (en) | 1998-03-05 | 1999-02-04 | A method for controlling a process for the production of a cellulose fibre containing product |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP1060382B1 (en) |
JP (1) | JP2002505963A (en) |
AT (1) | ATE380339T1 (en) |
AU (1) | AU748287B2 (en) |
CA (1) | CA2322278C (en) |
CZ (1) | CZ301201B6 (en) |
DE (1) | DE69937675T2 (en) |
DK (1) | DK1060382T3 (en) |
EE (1) | EE04290B1 (en) |
ES (1) | ES2297920T3 (en) |
MY (1) | MY131155A (en) |
NO (1) | NO325489B1 (en) |
NZ (1) | NZ506556A (en) |
PL (1) | PL188440B1 (en) |
PT (1) | PT1060382E (en) |
SK (1) | SK286278B6 (en) |
WO (1) | WO1999045367A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001065237A1 (en) * | 2000-03-02 | 2001-09-07 | Valmet Fibertech Ab | Method for continuous determination of the properties of a flow of wood fibres for fabrication of fibreboard |
CN100371152C (en) * | 2005-01-26 | 2008-02-27 | 东北林业大学 | Parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board |
EP3238934A1 (en) * | 2016-04-26 | 2017-11-01 | SWISS KRONO Tec AG | Method for determining the degree of curing of at least one polymer layer arranged on a support plate |
CN113033923A (en) * | 2021-04-30 | 2021-06-25 | 中国建筑材料科学研究总院有限公司 | Method, device and system for predicting, evaluating and optimizing performance of cement clinker |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015169569A (en) * | 2014-03-07 | 2015-09-28 | パナソニックIpマネジメント株式会社 | Measuring method of powdered resin content in resin fiber mat and determination method of powdered resin content in resin fiber mat |
PT3078959T (en) * | 2015-04-09 | 2017-08-28 | Flooring Technologies Ltd | Method for determining the abrasion resistance of at least one wear layer on a support plate |
DE102019114035A1 (en) * | 2019-05-26 | 2020-11-26 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method for determining the concentration of a volatile substance, emission monitoring device and system for the production of workpieces |
DE102023107151B3 (en) | 2023-03-22 | 2024-05-16 | Fagus-Grecon Greten Gmbh & Co Kg | Method for monitoring the production of wood-based products with regard to the emission of volatile organic compounds and devices for monitoring the production of wood-based products with regard to the emission of volatile organic compounds |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532487A (en) * | 1994-11-23 | 1996-07-02 | E. I. Du Pont De Nemours And Company | Near-infrared measurement and control of polyamide processes |
WO1997004299A1 (en) * | 1995-07-14 | 1997-02-06 | Casco Products Ab | Prediction of the properties of board by using a spectroscopic method combined with multivariate calibration |
-
1999
- 1999-02-04 JP JP2000534855A patent/JP2002505963A/en active Pending
- 1999-02-04 CA CA002322278A patent/CA2322278C/en not_active Expired - Fee Related
- 1999-02-04 EE EEP200000496A patent/EE04290B1/en not_active IP Right Cessation
- 1999-02-04 PT PT99906635T patent/PT1060382E/en unknown
- 1999-02-04 SK SK1310-2000A patent/SK286278B6/en not_active IP Right Cessation
- 1999-02-04 PL PL99342764A patent/PL188440B1/en unknown
- 1999-02-04 NZ NZ506556A patent/NZ506556A/en not_active IP Right Cessation
- 1999-02-04 CZ CZ20003136A patent/CZ301201B6/en not_active IP Right Cessation
- 1999-02-04 AT AT99906635T patent/ATE380339T1/en active
- 1999-02-04 DE DE69937675T patent/DE69937675T2/en not_active Expired - Lifetime
- 1999-02-04 DK DK99906635T patent/DK1060382T3/en active
- 1999-02-04 ES ES99906635T patent/ES2297920T3/en not_active Expired - Lifetime
- 1999-02-04 EP EP99906635A patent/EP1060382B1/en not_active Expired - Lifetime
- 1999-02-04 AU AU26492/99A patent/AU748287B2/en not_active Ceased
- 1999-02-04 WO PCT/SE1999/000144 patent/WO1999045367A1/en active IP Right Grant
- 1999-03-03 MY MYPI99000770A patent/MY131155A/en unknown
-
2000
- 2000-09-01 NO NO20004358A patent/NO325489B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5532487A (en) * | 1994-11-23 | 1996-07-02 | E. I. Du Pont De Nemours And Company | Near-infrared measurement and control of polyamide processes |
WO1997004299A1 (en) * | 1995-07-14 | 1997-02-06 | Casco Products Ab | Prediction of the properties of board by using a spectroscopic method combined with multivariate calibration |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001065237A1 (en) * | 2000-03-02 | 2001-09-07 | Valmet Fibertech Ab | Method for continuous determination of the properties of a flow of wood fibres for fabrication of fibreboard |
US7130040B2 (en) | 2000-03-02 | 2006-10-31 | Valmet Fibertech Ab | Method for continuous determination of the properties of a flow of wood fibres for fabrication of fibreboard |
CN100371152C (en) * | 2005-01-26 | 2008-02-27 | 东北林业大学 | Parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board |
EP3238934A1 (en) * | 2016-04-26 | 2017-11-01 | SWISS KRONO Tec AG | Method for determining the degree of curing of at least one polymer layer arranged on a support plate |
CN113033923A (en) * | 2021-04-30 | 2021-06-25 | 中国建筑材料科学研究总院有限公司 | Method, device and system for predicting, evaluating and optimizing performance of cement clinker |
CN113033923B (en) * | 2021-04-30 | 2024-05-14 | 中国建筑材料科学研究总院有限公司 | Method for predicting, evaluating and optimizing cement clinker performance, device and system thereof |
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NO325489B1 (en) | 2008-05-19 |
CZ301201B6 (en) | 2009-12-02 |
NO20004358L (en) | 2000-09-01 |
EP1060382B1 (en) | 2007-12-05 |
ATE380339T1 (en) | 2007-12-15 |
DE69937675D1 (en) | 2008-01-17 |
PT1060382E (en) | 2008-02-28 |
AU2649299A (en) | 1999-09-20 |
CZ20003136A3 (en) | 2001-03-14 |
PL188440B1 (en) | 2005-01-31 |
EE200000496A (en) | 2002-02-15 |
AU748287B2 (en) | 2002-05-30 |
EE04290B1 (en) | 2004-04-15 |
SK13102000A3 (en) | 2001-04-09 |
CA2322278C (en) | 2004-12-14 |
SK286278B6 (en) | 2008-06-06 |
DK1060382T3 (en) | 2008-04-07 |
NZ506556A (en) | 2002-03-28 |
EP1060382A1 (en) | 2000-12-20 |
CA2322278A1 (en) | 1999-09-10 |
DE69937675T2 (en) | 2008-11-27 |
JP2002505963A (en) | 2002-02-26 |
NO20004358D0 (en) | 2000-09-01 |
ES2297920T3 (en) | 2008-05-01 |
MY131155A (en) | 2007-07-31 |
PL342764A1 (en) | 2001-07-02 |
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