EP1813720B1 - Method for manufacturing or treating a sheet of fibrous material - Google Patents
Method for manufacturing or treating a sheet of fibrous material Download PDFInfo
- Publication number
- EP1813720B1 EP1813720B1 EP07100874.2A EP07100874A EP1813720B1 EP 1813720 B1 EP1813720 B1 EP 1813720B1 EP 07100874 A EP07100874 A EP 07100874A EP 1813720 B1 EP1813720 B1 EP 1813720B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross
- actuators
- profile
- quality
- moisture profile
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000002657 fibrous material Substances 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000005265 energy consumption Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 3
- 238000012937 correction Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
- D21G9/0045—Paper-making control systems controlling the calendering or finishing
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
Definitions
- the present invention relates to a method for the production or treatment of a fibrous web, in particular paper or board web, according to the preamble of claim 1.
- a fibrous web in particular paper or board web
- Such a method is, for example US 2004/0261965 known.
- the average actuator setting is a predetermined size.
- the actuator setting is continuously changed slowly with the goal of minimizing the average without to impair the function of the transverse profile control. The minimum is usually reached when the CD actuator with the smallest control value reaches the zero limit or a predetermined absolute minimum value. Further lowering the average of all actuators would change the control profile shape and degrade paper quality.
- the invention has for its object to enable further energy savings.
- This object is achieved in a method of the type mentioned in that the energy consumption of the process, in particular the heat energy used, with adjustment of the moisture profile is such that the lowest allowable value of the quality range or the maximum allowable deviation is at least approximately achieved is reduced ,
- this object is achieved in that the means are designed so that through them the energy consumption of the process, in particular the heat energy expended, setting at least one property such that the lowest allowable value of the quality range or the maximum permissible deviation is reached at least approximately straight is reduced.
- the method according to the invention is thus regulated in such a way that the power consumption is as low as possible, the regulation being carried out in such a way that the lowest limit of the permissible quality is just reached. That is, it is not regulated to an average value of a quality range to be complied with, but deliberately to the minimum value. This results in an additional potential for energy savings, especially in those cases where the usual quality control achieves better quality values, ie lower 2-sigma deviations than are actually necessary for the production.
- a property of the fibrous web to be controlled can be the moisture transverse profile. If the moisture transverse profile of the fibrous web is too good, the mean value of the actuators is further lowered until the desired quality deviation is just not exceeded. As a result, an additional energy saving can be achieved.
- a further measure, if the moisture transverse profile is too good, is to adjust the zonal influence of at least a part of the CD actuators, that is to say the actuators arranged side by side in the transverse direction of the fibrous web, more gently. As a result, the control performs only softer transverse profile corrections. Tips in the control profile are reduced. If one of these peaks is responsible for the minimum actuator position, this measure can provide potential for further lowering the average actuator set point and further reduce energy consumption.
- the line weight cross profile in addition to the moisture transverse profile, the line weight cross profile, in particular on a coater, are taken into account. If the line weight cross section is too good, then part of the quality can be sacrificed in favor of the moisture cross profile and thus in favor of energy optimization.
- the line weight cross profile control sets a compromise between moisture and line quality, so that the line weight cross profile in one defined quality range remains - target quality of the line weight - and the moisture deviation is optimized, especially in the vicinity of the minimum actuators.
- the basis weight of a paper web influences the moisture distribution. Therefore, one can sacrifice analogously the basis weight quality in favor of an optimization of the moisture profile, thereby further reducing the energy input in the moisture profile correction.
- the adjustment of the properties of the paper web can be done via heating actuators.
- spray nozzles can be influenced as actuators.
- Another application of the inventive concept relates to the control of a coating unit, which is to apply a certain amount of coating per square meter.
- a coating unit which is to apply a certain amount of coating per square meter.
- a device according to the invention comprises means for carrying out the method steps described above.
- the device shown comprises a coating applicator 1, moistening elements such as infrared emitters 2, a quality measuring system 3 and a controller 4.
- the coating applicator 1, the moistening elements 2 and the quality measuring system 3 are arranged in a suitable manner in the vicinity of the fibrous web 5, wherein the quality measuring system 3 in the web running direction I behind the coating applicator 1 and the moisture application elements 2 is arranged.
- the controller 4 is used to control the actuators of the coating applicator 1 and the dampening elements 2. It is designed so that the energy used is minimal by deliberately set a minimum allowable quality value for the moisture profile and / or the coating order.
- Fig. 2a shows the moisture profile 6 of a fibrous web, such as paper web. With 7 and 8, the upper and lower limits of the allowable tolerance band for the transverse moisture profile are designated.
- Fig. 2b shows an associated actuator setting 9 of the moisture application profile.
- Denoted by 10 is the average setting of the actuators and 11 the permissible absolute minimum value for the actuator setting.
- the designated 12 actuator is thus already at the lower limit.
- a further reduction of the average value 10 of the actuator setting would affect the shape of the control profile and thus the quality profile.
- the average value of the actuators is now lowered further, if it is determined that the moisture transverse profile is too good, namely until the setpoint quality deviation is just exceeded. Or the zonal influence of the CD actuators is adjusted more gently so that peaks in the control profile are reduced. This is preferably done only in the region of the actuator with the minimum setting value.
- other properties of the fibrous web can be taken into account, such as the line weight cross profile or the basis weight or the coating order of a coating unit.
- the application can be done both on heating and non-heating actuators such as spray nozzles. With these measures, lower production costs can be achieved by the quality produced by the control device according to the invention is set only as good as this is minimally required.
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- Paper (AREA)
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung oder Behandlung einer Faserstoffbahn, insbesondere Papier- oder Kartonbahn, gemäß dem Oberbegriff des Anspruchs 1. Ein derartiges Verfahren ist z.B. aus
Bei Papiermaschinen gibt es Querprofil-Stelleinrichtungen, insbesondere für den Feuchtegehalt der Papierbahn, deren Energieverbrauch im Megawattbereich liegt. Durch eine Verbesserung der Querprofil-Stelleinrichtungen kann daher eine erhebliche Energieeinsparung erzielt werden.In the case of paper machines, there are transverse profile adjusting devices, in particular for the moisture content of the paper web, whose energy consumption is in the megawatt range. By improving the cross-profile adjusting devices, therefore, a considerable energy saving can be achieved.
Bekannt ist es, zur Energieeinsparung die mittlere Last der Stellglieder zu minimieren. Zur Verbesserung des Feuchtequerprofils wird eine bestimmte Aktuatorprofileinstellung benötigt, die über einen Regelungsalgorithmus berechnet wird. In den meisten Querprofil-Regelungseinrichtungen ist die mittlere Aktuatoreinstellung eine vorgegebene Größe. In manchen Einrichtungen wird die Aktuatoreinstellung kontinuierlich langsam mit dem Ziel verändert, den Mittelwert zu minimieren, ohne die Querprofilregelung in ihrer Funktion zu beeinträchtigen. Das Minimum ist üblicherweise dann erreicht, wenn der CD-Aktuator mit dem kleinsten Stellwert die Nullgrenze oder einen vorgegebenen absoluten Minimalwert erreicht. Eine weitere Absenkung des Mittelwerts aller Aktuatoren würde die Stellprofilform verändert und die Papierqualität verschlechtern.It is known to minimize the average load of the actuators to save energy. To improve the moisture cross profile, a specific actuator profile setting is required, which is calculated via a control algorithm. In most cross-profile controllers, the average actuator setting is a predetermined size. In some devices, the actuator setting is continuously changed slowly with the goal of minimizing the average without to impair the function of the transverse profile control. The minimum is usually reached when the CD actuator with the smallest control value reaches the zero limit or a predetermined absolute minimum value. Further lowering the average of all actuators would change the control profile shape and degrade paper quality.
Der Erfindung liegt die Aufgabe zugrunde, eine weitere Energieeinsparung zu ermöglichen.The invention has for its object to enable further energy savings.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art dadurch gelöst, dass der Energieverbrauch des Verfahrens, insbesondere die aufgewendete Heizenergie, unter Einstellung des Feuchtequerprofils derart, dass der niedrigste zulässige Wert des Qualitätsbereichs oder die maximal zulässige Abweichung zumindest annähernd gerade erreicht wird, reduziert wird.This object is achieved in a method of the type mentioned in that the energy consumption of the process, in particular the heat energy used, with adjustment of the moisture profile is such that the lowest allowable value of the quality range or the maximum allowable deviation is at least approximately achieved is reduced ,
Bei einer Vorrichtung der eingangs genannten Art wird diese Aufgabe dadurch gelöst, dass die Mittel so ausgebildet sind, dass durch sie der Energieverbrauch des Verfahrens, insbesondere die aufgewendete Heizenergie, unter Einstellung mindestens einer Eigenschaft derart, dass der niedrigste zulässige Wert des Qualitätsbereichs oder die maximal zulässige Abweichung zumindest annähernd gerade erreicht wird, reduziert wird.In a device of the type mentioned, this object is achieved in that the means are designed so that through them the energy consumption of the process, in particular the heat energy expended, setting at least one property such that the lowest allowable value of the quality range or the maximum permissible deviation is reached at least approximately straight is reduced.
Das erfindungsgemäße Verfahren wird also so geregelt, dass der Energieverbrauch möglichst gering ist, wobei die Regelung so vorgenommen ist, dass die unterste Grenze der zulässigen Qualität gerade erreicht wird. Das heißt, es wird nicht auf einen Mittelwert eines einzuhaltenden Qualitätsbereiches geregelt, sondern bewusst auf den Minimalwert. Hierdurch ergibt sich ein zusätzliches Potential für die Energieeinsparung, insbesondere in den Fällen, in denen die übliche Qualitätsregelung bessere Qualitätswerte erzielt, also geringere 2-Sigma-Abweichungen, als für die Produktion eigentlich notwendig ist.The method according to the invention is thus regulated in such a way that the power consumption is as low as possible, the regulation being carried out in such a way that the lowest limit of the permissible quality is just reached. That is, it is not regulated to an average value of a quality range to be complied with, but deliberately to the minimum value. This results in an additional potential for energy savings, especially in those cases where the usual quality control achieves better quality values, ie lower 2-sigma deviations than are actually necessary for the production.
Eine zu regelnde Eigenschaft der Faserstoffbahn kann das Feuchtequerprofil sein. Wenn das Feuchtequerprofil der Faserstoffbahn zu gut ist, wird der Mittelwert der Aktuatoren weiter abgesenkt, bis die Soll-Qualitätsabweichung gerade eben nicht überschritten wird. Hierdurch kann eine zusätzliche Energieeinsparung erreicht werden.A property of the fibrous web to be controlled can be the moisture transverse profile. If the moisture transverse profile of the fibrous web is too good, the mean value of the actuators is further lowered until the desired quality deviation is just not exceeded. As a result, an additional energy saving can be achieved.
Eine weitere Maßnahme, wenn das Feuchtequerprofil zu gut ist, besteht darin, die zonale Beeinflussung mindestens eines Teils der CD-Aktuatoren, also der in Querrichtung der Faserstoffbahn nebeneinander angeordneten Aktuatoren, sanfter einzustellen. Dadurch führt die Regelung nur noch weichere Querprofilkorrekturen aus. Spitzen im Stellprofil werden verringert. Wenn eine dieser Spitzen für die minimale Aktuatorposition verantwortlich ist, kann durch diese Maßnahme Potential für eine weitere Absenkung des mittleren Aktuatoreinstellwertes gewonnen und so der Energieverbrauch weiter verringert werden.A further measure, if the moisture transverse profile is too good, is to adjust the zonal influence of at least a part of the CD actuators, that is to say the actuators arranged side by side in the transverse direction of the fibrous web, more gently. As a result, the control performs only softer transverse profile corrections. Tips in the control profile are reduced. If one of these peaks is responsible for the minimum actuator position, this measure can provide potential for further lowering the average actuator set point and further reduce energy consumption.
Besonders bevorzugt ist es, wenn nur die zonale Beeinflussung der CD-Aktuatoren in der Nachbarschaft des Aktuators mit dem minimalen Einstellwert sanfter eingestellt wird. Dadurch kann eine starke Senkung des Energieverbrauchs erreicht werden, ohne die zonale Einflussnahme der übrigen CD-Aktuatoren zu verändern.It is particularly preferred if only the zonal influence of the CD actuators in the vicinity of the actuator with the minimum setting value is set more gently. As a result, a significant reduction in energy consumption can be achieved without changing the zonal influence of the remaining CD actuators.
Ebenso ist es besonders bevorzugt, wenn zwei oder mehr Eigenschaften, insbesondere Querprofile, der Faserstoffbahn bei der Energiereduzierung berücksichtigt werden. Durch Berücksichtigung von zwei oder mehr Eigenschaften kann noch mehr Potential für die Energiereduzierung ausgeschöpft werden.Likewise, it is particularly preferred if two or more properties, in particular transverse profiles, of the fibrous web are taken into account in the energy reduction. By considering two or more properties, even more potential for energy reduction can be exploited.
Beispielsweise kann neben dem Feuchtequerprofil das Strichgewichts-Querprofil, insbesondere an einem Coater, berücksichtigt werden. Wenn das Strichgewichts-Querprofil zu gut ist, kann auch hier ein Teil der Qualität zu Gunsten des Feuchtequerprofils und damit zugunsten einer Energieoptimierung geopfert werden. Die Strichgewichts-Querprofilregelung stellt einen Kompromiss aus Feuchte- und Strichqualität ein, so dass das Strichgewichts-Querprofil in einem definierten Qualitätsbereich bleibt - Soll-Qualität des Strichgewichts - und die Feuchteabweichung insbesondere in der Nähe der minimalen Stellglieder optimiert wird.For example, in addition to the moisture transverse profile, the line weight cross profile, in particular on a coater, are taken into account. If the line weight cross section is too good, then part of the quality can be sacrificed in favor of the moisture cross profile and thus in favor of energy optimization. The line weight cross profile control sets a compromise between moisture and line quality, so that the line weight cross profile in one defined quality range remains - target quality of the line weight - and the moisture deviation is optimized, especially in the vicinity of the minimum actuators.
Alternativ oder zusätzlich kann neben dem Feuchtequerprofil auch das Flächengewicht berücksichtigt werden. Es ist bekannt, dass das Flächengewicht einer Papierbahn die Feuchteverteilung beeinflusst. Daher kann man analog die Flächengewichtsqualität zugunsten einer Optimierung des Feuchteprofils opfern, um dadurch den Energieeinsatz bei der Feuchteprofilkorrektur weiter zu senken.Alternatively or additionally, in addition to the moisture transverse profile and the basis weight are taken into account. It is known that the basis weight of a paper web influences the moisture distribution. Therefore, one can sacrifice analogously the basis weight quality in favor of an optimization of the moisture profile, thereby further reducing the energy input in the moisture profile correction.
Die Einstellung der Eigenschaften der Papierbahn kann über heizende Aktuatoren erfolgen. Insbesondere bei der Feuchteeinstellung können aber auch Sprühdüsen als Aktuatoren beeinflusst werden.The adjustment of the properties of the paper web can be done via heating actuators. In particular, in the humidity setting but also spray nozzles can be influenced as actuators.
Eine weitere Anwendung des Erfindungsgedankens betrifft die Regelung eines Streichaggregates, welches eine bestimmte Menge einer Beschichtung pro Quadratmeter auftragen soll. Durch eine entsprechende Regelung kann auch hier der Energieverbrauch als Folge der notwendigen Trocknung des mittleren Streichfarbenauftrags pro Zone verringert werden, indem die zulässige Minimalqualität des Streichauftrags durch die Regelung gezielt eingestellt wird.Another application of the inventive concept relates to the control of a coating unit, which is to apply a certain amount of coating per square meter. By means of a corresponding regulation, the energy consumption as a result of the necessary drying of the middle coating color application per zone can also be reduced by the targeted setting of the permissible minimum quality of the coating application by the regulation.
Eine erfindungsgemäße Vorrichtung umfasst Mittel zur Durchführung der oben beschriebenen Verfahrensschritte.A device according to the invention comprises means for carrying out the method steps described above.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is illustrated in the drawing and will be described below.
Es zeigen, jeweils in schematischer Darstellung,
- Fig. 1
- die Anordnung von Bauteilen einer erfindungsgemäßen Vorrichtung;
- Fig. 2a
- das Feuchtequerprofil einer Faserstoffbahn, und
- Fig. 2b
- das Feuchtestellprofil dieser Faserstoffbahn.
- Fig. 1
- the arrangement of components of a device according to the invention;
- Fig. 2a
- the moisture profile of a fibrous web, and
- Fig. 2b
- the moisture profile of this fibrous web.
Die in
Die Steuerung 4 dient zur Steuerung der Aktuatoren des Strichauftragswerks 1 und der Feuchtestellelemente 2. Sie ist so ausgelegt, dass die aufgewendete Energie minimal wird, indem bewusst ein minimal zulässiger Qualitätswert für das Feuchtequerprofil und/oder des Strichauftrags eingestellt wird.The
Erfindungsgemäß wird nun der Mittelwert der Aktuatoren weiter abgesenkt, wenn festgestellt wird, dass das Feuchtequerprofil zu gut ist, und zwar so weit, bis die Sollqualitätsabweichung gerade eben nicht überschritten wird. Oder es wird die zonale Einflussnahme der CD-Aktuatoren sanfter eingestellt, so dass Spitzen im Stellprofil verringert werden. Dies erfolgt bevorzugt nur im Bereich des Aktuators mit dem minimalen Einstellwert. Schließlich können auch weitere Eigenschaften der Faserstoffbahn berücksichtigt werden, wie das Strichgewichtsquerprofil oder das Flächengewicht oder der Streichauftrag eines Streichaggregats. Die Anwendung kann dabei sowohl auf heizende als auch auf nicht heizende Aktuatoren wie Sprühdüsen erfolgen. Mit diesen Maßnahmen können niedrigere Produktionskosten erzielt werden, indem die produzierte Qualität durch die erfindungsgemäße Regeleinrichtung nur so gut eingestellt wird, wie dies minimal gefordert ist.According to the invention, the average value of the actuators is now lowered further, if it is determined that the moisture transverse profile is too good, namely until the setpoint quality deviation is just exceeded. Or the zonal influence of the CD actuators is adjusted more gently so that peaks in the control profile are reduced. This is preferably done only in the region of the actuator with the minimum setting value. Finally, other properties of the fibrous web can be taken into account, such as the line weight cross profile or the basis weight or the coating order of a coating unit. The application can be done both on heating and non-heating actuators such as spray nozzles. With these measures, lower production costs can be achieved by the quality produced by the control device according to the invention is set only as good as this is minimally required.
- 11
- StrichauftragswerkCoating application work
- 22
- FeuchtestellelementHumidity Control
- 33
- QualitätsmesssystemQuality measurement system
- 44
- Steuerungcontrol
- 55
- FaserstoffbahnFibrous web
- 66
- FeuchtequerprofilMoisture profile
- 77
- Obere Grenze des Toleranzbandes für das FeuchtequerprofilUpper limit of the tolerance band for the moisture cross profile
- 88th
- Untere Grenze des Toleranzbandes für das FeuchtequerprofilLower limit of the tolerance band for the moisture cross profile
- 99
- FeuchtestellprofilMoisture parking Profile
- 1010
- Mittelwert der AktuatoreinstellungAverage value of the actuator setting
- 1111
- Absoluter Minimalwert für die AktuatoreinstellungAbsolute minimum value for the actuator setting
- 1212
- Aktuator am LimitActuator at the limit
- II
- BahnlaufrichtungWeb direction
Claims (11)
- Method for manufacturing or treating a fibrous web (5), in particular a paper or board web, in which the cross-direction moisture profile (6) is adjusted by means of actuators such that a predefined quality range is maintained or that a predetermined quality value is undershot at most by a predetermined deviation,
characterized in that
the energy consumption of the method, in particular the heating energy expended, is reduced while adjusting the cross-direction moisture profile in such a way that the lowest permissible value of the quality range or the maximum permissible deviation is at least approximately just reached. - Method according to Claim 1,
characterized in that
in order to reduce the energy consumption, the average (10) of the actuator setting for adjusting the cross-direction moisture profile (6) is lowered in a corresponding way. - Method according to Claim 1 or 2,
characterized in that
in order to reduce the energy consumption, the zonal influence of at least some of the CD actuators is adjusted to be more gentle. - Method according to Claim 3,
characterized in that
only the zonal influence of the CD actuators in the vicinity of the actuator (12) having the minimum set value is adjusted to be more gentle. - Method according to one of the preceding claims,
characterized in that
two or more properties, in particular cross-direction profiles, of the fibrous web (5) are taken into account during the energy reduction. - Method according to Claim 5,
characterized in that
in addition to the cross-direction moisture profile (6), the cross-direction coat weight profile, in particular on a coater, is taken into account. - Method according to Claim 5 or 6,
characterized in that
in addition to the cross-direction moisture profile (6), the grammage is also taken into account. - Method according to one of the preceding claims,
characterized in that
the adjustment of a property is carried out via heating actuators. - Method according to one of the preceding claims
characterized in that
the adjustment of a property is carried out via actuators comprising spray nozzles. - Method according to one of the preceding claims,
characterized in that
the adjustment of a property is carried out via at least one coating unit. - Method according to one of Claims 5 to 10,
characterized in that
a compromise is made with regard to the quality of the two or three properties.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006003637A DE102006003637A1 (en) | 2006-01-26 | 2006-01-26 | Process for producing or treating a fibrous web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1813720A1 EP1813720A1 (en) | 2007-08-01 |
| EP1813720B1 true EP1813720B1 (en) | 2015-06-17 |
Family
ID=37983387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07100874.2A Active EP1813720B1 (en) | 2006-01-26 | 2007-01-22 | Method for manufacturing or treating a sheet of fibrous material |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8092650B2 (en) |
| EP (1) | EP1813720B1 (en) |
| DE (1) | DE102006003637A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005054825A1 (en) * | 2005-11-15 | 2007-05-24 | Voith Patent Gmbh | Method for determining paper strength |
| DE102006003637A1 (en) * | 2006-01-26 | 2007-08-02 | Voith Patent Gmbh | Process for producing or treating a fibrous web |
| US8790495B2 (en) * | 2008-03-17 | 2014-07-29 | Abb Ltd. | Web production with increased process efficiency |
| DE102009047041A1 (en) | 2009-11-24 | 2011-05-26 | Voith Patent Gmbh | Method for controlling/regulating average total amount of volume flow at dilution media stream for controlling/regulating of characteristics of e.g. paper web, involves adjusting dilution media stream by control elements |
| US9481777B2 (en) | 2012-03-30 | 2016-11-01 | The Procter & Gamble Company | Method of dewatering in a continuous high internal phase emulsion foam forming process |
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-
2006
- 2006-01-26 DE DE102006003637A patent/DE102006003637A1/en not_active Withdrawn
-
2007
- 2007-01-22 EP EP07100874.2A patent/EP1813720B1/en active Active
- 2007-01-26 US US11/627,630 patent/US8092650B2/en not_active Expired - Fee Related
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| US5377428A (en) * | 1993-09-14 | 1995-01-03 | James River Corporation Of Virginia | Temperature sensing dryer profile control |
| US20040261965A1 (en) * | 2003-06-25 | 2004-12-30 | Burma Gary K. | Cross-direction actuator and control system with adaptive footprint |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006003637A1 (en) | 2007-08-02 |
| US20070169906A1 (en) | 2007-07-26 |
| US8092650B2 (en) | 2012-01-10 |
| EP1813720A1 (en) | 2007-08-01 |
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