Equipment for ultraviolet crosslinking in a controlled atmosphere
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-005/00
B05C-011/00
F26B-003/34
B01J-019/08
출원번호
UP-0586102
(2005-01-24)
등록번호
US-7806075
(2010-10-26)
우선권정보
FR-04 50155(2004-01-28)
국제출원번호
PCT/FR2005/050040
(2005-01-24)
§371/§102 date
20060714
(20060714)
국제공개번호
WO05/075111
(2005-08-18)
발명자
/ 주소
Coeuret, François
Rames-Langlade, Géraldine
Spizzica, Andrea
출원인 / 주소
L'Air Liquide, Société Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude
대리인 / 주소
Holguin, Donna Blalock
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
The invention concerns an installation wherein is performed a crosslinking operation for a coating such as an ink or a varnish through ultraviolet radiation or electronic beam, in the presence of a gas mixture with controlled oxygen residual content. The installation comprises a chamber including on
The invention concerns an installation wherein is performed a crosslinking operation for a coating such as an ink or a varnish through ultraviolet radiation or electronic beam, in the presence of a gas mixture with controlled oxygen residual content. The installation comprises a chamber including one or more UV lamps or a source of accelerated electrons, required for performing the crosslinking operation, and is characterized in that it comprises an input device adjacent the chamber comprising at least the following three components, viewed successively by the product moving to be treated: a labyrinth system, means for injecting an inert gas forming a gas knife and a channel.
대표청구항▼
What is claimed is: 1. An installation in which an operation of crosslinking a coating is carried out by ultraviolet radiation or by an electron beam, in the presence of a gas mixture with a controlled residual oxygen content, the installation comprising a chamber having one or more UV lamps or a s
What is claimed is: 1. An installation in which an operation of crosslinking a coating is carried out by ultraviolet radiation or by an electron beam, in the presence of a gas mixture with a controlled residual oxygen content, the installation comprising a chamber having one or more UV lamps or a source of accelerated electrons, necessary for carrying out the crosslinking operation, wherein the installation includes an entry device adjacent to and just prior to the chamber and comprising at least the following three components: a labyrinth system, means for injecting an inert gas forming a gas knife, and a channel such that a running product passing through the entry device would first come in contact with the labyrinth system followed by the means for injecting an inert gas followed by the channel before passing to the chamber. 2. The installation of claim 1, wherein the installation includes an exit device adjacent to and just after the chamber and consisting of at least the following three components: a channel (“output channel”), means for injecting an inert gas forming a gas knife, and a means for creating a pressure drop, such as a smooth profile, the distance between the smooth profile and the surface of the coating being less than the height of said channel and the running product passing through the exit device such that the running product would first come in contact with the channel followed by the means for injecting an inert gas forming a gas knife followed by the means for creating a pressure drop before exiting the exit device. 3. The installation of claim 1, wherein the installation includes an exit device adjacent to and just after the chamber and consisting of at least the following three components: a channel, means for injecting an inert gas forming a gas knife, and a labyrinth system such that the running product passing through the exit device would first come in contact with the channel followed by the means for injecting an inert gas forming a gas knife followed by the labyrinth system before exiting the exit device. 4. The installation of claim 1, wherein said means for injecting inert gas forming a gas knife comprise a plane-walled gas injection slot emerging inside the entry or exit device in question. 5. The installation of claim 1, wherein the length/height ratio of at least one of said channels is at least 3. 6. The installation of claim 5, wherein the length/height ratio of at least one of said channels is at least 6. 7. An installation in which an operation of crosslinking a coating is carried out by ultraviolet radiation or by an electron beam, in the presence of a gas mixture with a controlled residual oxygen content, the installation comprising a chamber having one or more UV lamps or a source of accelerated electrons, necessary for carrying out the crosslinking operation, wherein the installation includes an entry device adjacent to and just before the chamber and comprising at least the following three components: a labyrinth system, means for injecting an inert gas forming a gas knife, and a channel such that a running product passing through the entry device would first come in contact with the labyrinth system followed by the means for injecting an inert gas followed by the channel before passing to the chamber, said entry device further including an additional means for injecting an inert gas and channel such that the entry device includes at least the following five components: a first channel, a first gas injection slot, a labyrinth system, a second gas injection slot, followed by a second channel such that a running product passing through the entry device would first come in contact with the first channel followed by the first gas injection slot followed by the labyrinth system followed by the second gas injection slot followed by the second channel before passing to the chamber. 8. The installation of claim 7, wherein the coating is an ink or varnish coating. 9. The installation of claim 7, wherein said means for injecting inert gas forming a gas knife comprise a plane-walled gas injection slot emerging inside the entry or exit device in question. 10. The installation of claim 7, wherein the length/height ratio of at least one of said channels is at least 3. 11. The installation of claim 10, wherein the length/height ratio of at least one of said channels is at least 6. 12. The installation of claim 7, wherein the coating is an ink or varnish coating. 13. An installation in which an operation of crosslinking a coating is carried out by ultraviolet radiation or by an electron beam in the presence of a gas mixture with a controlled residual oxygen content, the installation comprising: a) a chamber having one or more UV lamps or a source of accelerated electrons necessary for carrying out the crosslinking operation, b) an entry device adjacent to and just prior to the chamber and comprising at least the following three components: a labyrinth system, means for injecting an inert gas forming a gas knife, and a channel, such that a running product passing through the entry device would first come in contact with the labyrinth system followed by the means for injecting an inert gas followed by the channel before passing to the chamber, and c) an exit device adjacent to and after the chamber and comprising at least the following three components: a channel, means for injecting an inert gas forming a gas knife comprising a plane-walled gas injection slot emerging inside the entry or exit device in question, and either: i) a means for creating a pressure drop, such as a smooth profile, the distance between the smooth profile and the surface of the coating being less than the height of said channel, or ii) a labyrinth system; such that the running product passing through the exit device would first come in contact with the channel followed by the means for injecting an inert gas forming a gas knife followed either by a means for creating a pressure drop or a labyrinth system before exiting the exit device. 14. An installation in which an operation of crosslinking a coating is carried out by ultraviolet radiation or by an electron beam in the presence of a gas mixture with a controlled residual oxygen content, the installation comprising: a) a chamber having one or more UV lamps or a source of accelerated electrons necessary for carrying out the crosslinking operation, b) an entry device adjacent the chamber and comprising at least the following five components, seen in succession by the running product to be treated: a first channel, a first gas injection slot, a labyrinth system, a second gas injection slot, followed by a second channel, and c) an exit device adjacent the chamber and comprising at least the following three components, seen in succession by the running product to be treated: a channel, means for injecting an inert gas forming a gas knife comprising a plane-walled gas injection slot emerging inside the entry or exit device in question, and either: i) a means for creating a pressure drop, such as a smooth profile, the distance between the smooth profile and the surface of the coating being less than the height of said channel, or ii) a labyrinth system.
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이 특허에 인용된 특허 (7)
Panayotis Cocolios FR; Fran.cedilla.ois Coeuret FR; Wolfgang Doring DE; Franck Forster DE; Jean-Louis Gelot FR; Bernd Martens DE; Stephane Melen FR; Eckhard Prinz DE; Jean-Yves Thonnelier FR, Installation in which an operation is performed requiring over the atmosphere inside a chamber.
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