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(12) Patent Application: | (11) CA 2283921 |
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(54) English Title: | METHOD AND DEVICE FOR IMPREGNATING AND DRYING A CONTINUOUS WEB |
(54) French Title: | PROCEDE ET INSTALLATION D'IMPREGNATION ET DE SECHAGE D'UNE BANDE CONTINUE |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | LAVERY, DE BILLY, LLP |
(74) Associate agent: | |
(45) Issued: | |
(86) PCT Filing Date: | 1997-12-09 |
(87) Open to Public Inspection: | 1998-09-24 |
Examination requested: | 1999-09-13 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/EP1997/006859 |
(87) International Publication Number: | WO 1998041805 |
(85) National Entry: | 1999-09-13 |
(30) Application Priority Data: | ||||||
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In conventional methods absorbent base paper is impregnated by being passed
through an aqueous solution of the impregnating agent and then conveyed to a
drier after the excess has been squeezed off by means of metering rolls. The
quantity of resin applied and the residual moisture are checked at set
intervals using sample pieces cut out from the web and in the case of
deviations the setting of the metering roll or the throughput speed are
corrected. The inventive method uses an automatic regulating device. The basis
weight of the freshly impregnated, wet web is measured and adjusted to a
predetermined control input. The residual moisture of the dried web is
measured and adjusted to a set value, for example by influencing the speed of
the drying air which is circulated during the last drying phase. The quantity
of resin applied is calculated from the basis weight and the residual moisture
of the dried web and the basis weight of the untreated web. This is then
compared to a set value to give the control input for metering. The method is
especially suitable for producing cosmetic films for refining surface of chip
board for the furniture industry.
L'invention concerne un papier support absorbant. Selon des procédés d'imprégnation connus, le papier passe dans une solution aqueuse de l'agent d'imprégnation puis est introduit dans un séchoir après expression de l'excédent par un cylindre doseur. A intervalles réguliers, on contrôle la quantité de résine appliquée et l'humidité résiduelle sur des spécimens découpés et, au besoin, on procède au réglage du cylindre doseur ou de la vitesse de défilement. Le nouveau procédé introduit un réglage automatique. Le grammage de la bande mouillée et fraîchement imprégnée est mesuré et réglé à une grandeur de commande déterminée. L'humidité résiduelle de la bande séchée est mesurée et réglée en fonction d'une valeur de référence, par exemple, en modulant, dans la dernière phase du séchage, la vitesse de l'air de séchage pulsé. La quantité de résine appliquée est calculée à partir du grammage de l'humidité résiduelle de la bande sèche et du grammage de la bande non traitée. Et la grandeur de commande est déterminée par comparaison avec une valeur de référence. Ce procédé est particulièrement adapté à la fabrication de films décoratifs destinés à recouvrir les panneaux de particules destinés à l'industrie du meuble.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: Dead - No reply to s.30(2) Rules requisition | 2005-08-04 |
Application Not Reinstated by Deadline | 2005-08-04 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2004-12-09 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2004-08-04 |
Inactive: S.30(2) Rules - Examiner requisition | 2004-02-04 |
Amendment Received - Voluntary Amendment | 2003-12-10 |
Inactive: S.30(2) Rules - Examiner requisition | 2003-06-19 |
Letter Sent | 2000-02-17 |
Inactive: Correspondence - Transfer | 2000-01-19 |
Inactive: Courtesy letter - Evidence | 1999-12-29 |
Inactive: Single transfer | 1999-11-23 |
Inactive: Cover page published | 1999-11-18 |
Inactive: IPC assigned | 1999-11-05 |
Inactive: First IPC assigned | 1999-11-05 |
Inactive: IPC assigned | 1999-11-05 |
Inactive: IPC assigned | 1999-11-05 |
Inactive: Courtesy letter - Evidence | 1999-10-26 |
Inactive: Acknowledgment of national entry - RFE | 1999-10-20 |
Application Received - PCT | 1999-10-18 |
All Requirements for Examination Determined Compliant | 1999-09-13 |
Request for Examination Requirements Determined Compliant | 1999-09-13 |
Application Published (Open to Public Inspection) | 1998-09-24 |
Abandonment Date | Reason | Reinstatement Date |
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2004-12-09 |
The last payment was received on 2003-11-26
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Please refer to the CIPO Patent Fees web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Basic national fee - standard | 1999-09-13 | ||
Request for examination - standard | 1999-09-13 | ||
MF (application, 2nd anniv.) - standard | 02 | 1999-12-09 | 1999-10-13 |
Registration of a document | 1999-11-23 | ||
MF (application, 3rd anniv.) - standard | 03 | 2000-12-11 | 2000-10-13 |
MF (application, 4th anniv.) - standard | 04 | 2001-12-10 | 2001-11-26 |
MF (application, 5th anniv.) - standard | 05 | 2002-12-09 | 2002-11-15 |
MF (application, 6th anniv.) - standard | 06 | 2003-12-09 | 2003-11-26 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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VITS-MASCHINENBAU GMBH |
Past Owners on Record |
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ERNST KLAS |
UDO UNGER |
WILLI ERKELENZ |