ATE456695T1 - CURTAIN APPLICATION DEVICE - Google Patents
CURTAIN APPLICATION DEVICEInfo
- Publication number
- ATE456695T1 ATE456695T1 AT01127739T AT01127739T ATE456695T1 AT E456695 T1 ATE456695 T1 AT E456695T1 AT 01127739 T AT01127739 T AT 01127739T AT 01127739 T AT01127739 T AT 01127739T AT E456695 T1 ATE456695 T1 AT E456695T1
- Authority
- AT
- Austria
- Prior art keywords
- guide
- coating
- curtain
- degrees
- substrate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/005—Curtain coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
- B05C5/008—Slide-hopper curtain coaters
Abstract
The curtain coating assembly (10), to coat the surface of a moving web substrate (U) with a paste or liquid coating (18) and especially a pigment suspension, has a jet unit (14) at the applicator (12) to deliver a coating curtain (18). At least one guide (22) is in the falling path of the coating curtain, which directs the coating over the whole curtain width over at least a part of its falling path. The web curtain coating assembly has a guide in the path of the falling coating curtain, which divides it into a path section (24) between the feed and the guide, and a second path section (26) between the guide and the moving substrate. The guide can be directly at the delivery jet. The variable length of the curtain coating which covers the guide is measured in the direction of its movement. The guide forms an included angle ( alpha ) of 5-30 degrees with the direction of the curtain coating free fall line. The surface (22a) of the guide, covered by the coating medium, forms an included angle ( beta ) with the end surface (22b) of the guide of 20-60 degrees . The guide can be a guide scraper against the substrate. The guide is pitched at an angle of 20-80 degrees in the required flow direction, and preferably 45-80 degrees . The end of the guide surface towards the moving substrate can be extended at an angle of 30-50 degrees . The guide can also cover the whole flow stretch for the coating medium, between the delivery jet and the moving substrate. The surface of the guide, towards the coating medium, has a hydrophobic character, or has a hydrophobic cladding of a treated glass fiber film. At least the end surface of the guide is free of hydrophobic cladding. The coating curtain flows over the upper surface of the guide, or along its under surface. At least one electrode can be at the guide, on the side away from the flowing coating. A suction box is at the moving substrate, in front of the contact line where the coating curtain strikes it, together with a scraper at the entry and/or exit side, with a scraping edge lying on the moving substrate. The scraper at the exit side can be formed by the coating guide. The coating curtain flows over the guide surface, in a length (l) of 1-200 mm and preferably 1-50 mm. The travel speed of the substrate is 1000-3000 m/min. for a paper web and 200-1000 m/min. for a cardboard web. The coating is applied in ready doses to the substrate surface. The delivery jet has a coating delivery rate of 2-200 l/min. per meter of the web width. The length (H) of the coating curtain is 5-400 mm and preferably 40-200 mm. The guide is of metal or plastics e.g. a plastics with reinforcement carbon or glass fibers. The guide has a thickness (D) of 0.2-1.0 mm. The guide is positioned at the applicator, at an angle to the moving substrate of 70 degrees , in either direction. The guide can have a convex or concave curvature, with a curved surface at a tangent to the free fall of the coating curtain, in either direction, at an angle of up to 70 degrees .
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000157732 DE10057732A1 (en) | 2000-11-22 | 2000-11-22 | Web curtain coating station has a rotating roller in the curtain fall path, to divide the coating path into two sections to set the coating speed according to the substrate speed to prevent coating distortions |
DE2000157734 DE10057734A1 (en) | 2000-11-22 | 2000-11-22 | Web curtain coating station, especially using a pigment suspension, has a guide in the free fall path of the coating to divide the path into two sections and reduce distorting effects on the laid coating at the moving substrate surface |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE456695T1 true ATE456695T1 (en) | 2010-02-15 |
Family
ID=26007728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01127739T ATE456695T1 (en) | 2000-11-22 | 2001-11-21 | CURTAIN APPLICATION DEVICE |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1209274B1 (en) |
AT (1) | ATE456695T1 (en) |
DE (1) | DE50115328D1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI111562B (en) * | 2002-01-16 | 2003-08-15 | Metso Paper Inc | A method and apparatus for applying a treating agent to a moving surface |
JP4746894B2 (en) * | 2005-03-14 | 2011-08-10 | ボイス ペ−パ− パテント ゲ−エムベ−ハ− | Coating equipment |
JP4902160B2 (en) * | 2005-09-22 | 2012-03-21 | ボイス ペ−パ− パテント ゲ−エムベ−ハ− | Coating equipment |
CN106563608A (en) * | 2016-11-04 | 2017-04-19 | 三峡大学 | Method and device for preparing anti-reflection self-cleaning film on glass |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809128A (en) * | 1953-07-14 | 1957-10-08 | Ransburg Electro Coating Corp | Electrostatic method and apparatus for atomizing and for coating |
DE2438673A1 (en) * | 1974-08-12 | 1976-02-26 | Riggs & Lombard Inc | Fabric web scouring machine - pours liquid onto web carried on vibrated mesh suction conveyor |
DE2631559A1 (en) * | 1976-07-14 | 1978-01-19 | Helvisol Ag | Adhesive distributor for travelling strip - has set of slope and height adjustable troughs between adhesive container and conveyor |
DE3333592A1 (en) * | 1983-09-16 | 1985-04-18 | Brückner-Apparatebau GmbH, 6120 Erbach | Apparatus for the application of a liquid film to a length of material |
JPH02277570A (en) * | 1989-04-19 | 1990-11-14 | Fuji Photo Film Co Ltd | Applicator |
DE3915844C1 (en) * | 1989-05-16 | 1990-12-06 | Eduard Kuesters Maschinenfabrik Gmbh & Co Kg, 4150 Krefeld, De | |
US5136970A (en) * | 1989-10-06 | 1992-08-11 | Fuji Photo Film Co., Ltd. | Coating apparatus with vertically movable solution receiver |
DE4015946C3 (en) * | 1990-05-18 | 1996-06-20 | Kuesters Eduard Maschf | Drain plate for a device for applying a liquid film to a web |
JP2533812B2 (en) * | 1990-07-13 | 1996-09-11 | 富士写真フイルム株式会社 | Glass dry plate manufacturing method and apparatus |
DE9012108U1 (en) * | 1990-08-23 | 1990-10-25 | Fa. Theodor Hymmen, 4800 Bielefeld, De | |
JPH06262129A (en) * | 1993-03-12 | 1994-09-20 | Sumitomo Metal Ind Ltd | Curtain flow coating method |
JPH1024260A (en) * | 1996-07-11 | 1998-01-27 | Nippon Steel Corp | Roller curtain coater |
DE19903559B4 (en) * | 1998-01-30 | 2004-02-26 | Mitsubishi Paper Mills Limited | Process and apparatus for curtain coating |
-
2001
- 2001-11-21 AT AT01127739T patent/ATE456695T1/en active
- 2001-11-21 DE DE50115328T patent/DE50115328D1/en not_active Expired - Lifetime
- 2001-11-21 EP EP01127739A patent/EP1209274B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1209274A2 (en) | 2002-05-29 |
EP1209274B1 (en) | 2010-01-27 |
DE50115328D1 (en) | 2010-03-18 |
EP1209274A3 (en) | 2003-06-11 |
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