EP1343595A1 - Procede d'enduction indirect en couche mince et dispositif a cet effet - Google Patents
Procede d'enduction indirect en couche mince et dispositif a cet effetInfo
- Publication number
- EP1343595A1 EP1343595A1 EP00988523A EP00988523A EP1343595A1 EP 1343595 A1 EP1343595 A1 EP 1343595A1 EP 00988523 A EP00988523 A EP 00988523A EP 00988523 A EP00988523 A EP 00988523A EP 1343595 A1 EP1343595 A1 EP 1343595A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- coating
- applicator
- coating composition
- tank
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 24
- 239000011248 coating agent Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000008199 coating composition Substances 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 7
- 239000013536 elastomeric material Substances 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 3
- 230000001464 adherent effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 238000009408 flooring Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
Definitions
- the present invention relates to an improved process for indirect coating of a thin layer, that is to say a coating in which the material, in a conventional manner, is applied in a layer on a support. which scrolls in front of a cylinder, which continuously transfers the coating material to a support.
- the invention also relates to an improved coating device.
- a coating is carried out on a support in a flexible material which circulates in the form of a continuous strip over an applicator cylinder.
- This applicator cylinder also called a metering cylinder
- This applicator cylinder is either in contact with another so-called transfer cylinder (or soaking roller) which is partially immersed in a tank or reservoir containing the coating composition, or more generally is directly immersed in part in such a tank or tank.
- One or more counter-cylinders are provided above the support by exerting a pinching effect (nip).
- nip a pinching effect
- Different embodiments of coating installation are described in the book Kunststoff Maschinen Fuhrer 3. Ausgabe, Cari Hanser Verlag-Mùnchen [0006] Devices of this type are widely used, in particular in the production of various floor and wall coverings.
- compositions suitable for this use have been described in European patent application number 00870129.4 of 06.15.2000 in the name of the Applicant.
- doctor blade or doctor-doser which equalizes the material before its contact with the support which must to be coated.
- the invention aims to avoid the drawbacks of the techniques used so far and aims to ensure at the outlet of the container containing this composition, an adequate equalization of the coating composition taken up by the applicator cylinder.
- an applicator cylinder is used receiving the coating composition contained in a tank or tank in which the applicator cylinder is partially immersed.
- the emerging part of the applicator cylinder for the purpose of equalizing the coating composition, is in contact with an equalizing cylinder provided with a coating of an elastomeric material, rotating or not in the same direction of rotation as the applicator cylinder and whose peripheral speed of rotation is different from that of the applicator cylinder.
- the installation used is conventionally constituted by a soaking tank, an applicator cylinder partially submerged in this tank and an equalizing cylinder of the coating composition for the support to be coated which is in contact with the emerging part of the applicator cylinder.
- That of the invention does not include a doctor blade or equalization doctor acting on the material supplied by the applicator cylinder, but involves the use of an equalizing cylinder provided with a coating of 'An elastomeric material, rotating or not in the same direction of rotation as the applicator cylinder and whose peripheral speed of rotation is different from that of the applicator cylinder.
- the elastomeric coating chosen for the equalizing cylinder has a hardness sufficient to cause an equalization and smoothing effect. It is preferably a rubber type material having a Shore hardness of the order of 45 to 80, preferably in the range of 65 to 70 Shore units.
- a non-adherent material is chosen for the coating composition. Even in the case of a composition comprising highly abrasive fillers, no marked wear effect is observed for long periods of operation of the equalizing cylinder.
- the applicator cylinders used are conventionally engraved cylinders, of the rotogravure cylinders type, in particular cylinders comprising engravings of the pyramid, truncated pyramid, conical type or lines of helical engravings intended to retain the coating composition taken during passage in the soaking tank.
- the volume deposited on the support generally corresponds to 10 to 100 ml / m 2 of a (wet) composition with a density of 1. In practice, the density is between 0.8 and 1.5.
- thin layer is meant a coating film of the order of a few microns to 120 microns, preferably of the order of 5 ⁇ m and 70 ⁇ m (thickness of the film of dry and possibly crosslinked coating material made on the support).
- the peripheral (linear) speed of the applicator cylinder is of the order of 20 to 40 m / min.
- the ratio of the peripheral speeds of the equalizing cylinder and the applicator cylinder is achieved by adjusting the speed of rotation (revolutions per minute) of the equalizing cylinder, taking into account the respective diameters of the cylinders and, of course, the directions of rotation.
- the choice of these relative speeds is essentially dictated by considerations of viscosity of the coating composition.
- the installation includes the usual auxiliary equipment such as detour rollers or rollers, drying and / or crosslinking devices - UN or others, support unwinders and reels for the coated support, bin level regulator soaking, device for adjusting the spacing of the cylinders, and drive and cutting mechanisms, etc.
- the attached figure shows schematically a view of an installation according to the invention.
- the direction of rotation of the different cylinders and rollers is indicated there schematically by arrows.
- a soaking tank 1 containing a coating composition 3 kept level by suitable equipment receives an applicator cylinder 5. This is in part immersed in the tank and feeds the coating composition to a support 9 to receive the coating and is conventionally shown in dashed lines. This comes from a feed and passes successively through a first guide roller 11 and passes between the applicator cylinder 5 covered with the coating composition and one or more counter-cylinders 15 and 17 and, finally, is driven by this cylinder towards a second guide roller 13, after having been coated in passing by the contact of cylinder 5.
- 1 equalizer of the material removed and driven by the applicator cylinder 5 is produced using an equalizing cylinder 19 covered with an envelope of an elastomeric material 21.
- This equalizing cylinder 19 rotates in a direction of rotation which is, in this case, the same as that of the applicator cylinder 5. Its peripheral rotation speed can be of the order of half to an eighth of that of the applicator cylinder 5. [0030] The specific speed chosen is such that good leveling of the coating composition layer is ensured by a smoothing effect.
- the linear (peripheral) speed ratio of the cylinders 5 and 19 which is chosen however depends essentially on the viscosity of this coating composition and, to a certain extent, on the hardness of the envelope of elastomeric material.
- the equalizing effect unlike what is observed when using a doctor blade, causes very little wear on the cylinders, probably due to the rheological effect resulting from the peripheral linear speed differential between cylinders 5 and 19 and this, despite the presence of abrasive charges in the coating composition.
- a suitable device (not shown) can be provided to allow the adjustment of the spacing between the applicator cylinder 5 and the leveling cylinder 19. This leveling effect with very little wear is particularly marked in the case of engravings.
Landscapes
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Glass Compositions (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/BE2000/000156 WO2002051556A1 (fr) | 2000-12-22 | 2000-12-22 | Procede d'enduction indirect en couche mince et dispositif a cet effet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1343595A1 true EP1343595A1 (fr) | 2003-09-17 |
| EP1343595B1 EP1343595B1 (fr) | 2004-09-08 |
Family
ID=3862557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20000988523 Expired - Lifetime EP1343595B1 (fr) | 2000-12-22 | 2000-12-22 | Procede d'enduction indirect en couche mince et dispositif a cet effet |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1343595B1 (fr) |
| AT (1) | ATE275439T1 (fr) |
| BG (1) | BG107924A (fr) |
| CZ (1) | CZ300433B6 (fr) |
| DE (1) | DE60013652T2 (fr) |
| ES (1) | ES2226972T3 (fr) |
| HR (1) | HRP20030352A2 (fr) |
| HU (1) | HUP0302607A3 (fr) |
| PL (1) | PL198199B1 (fr) |
| SK (1) | SK286673B6 (fr) |
| UA (1) | UA73224C2 (fr) |
| WO (1) | WO2002051556A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111507309B (zh) * | 2020-05-20 | 2020-12-01 | 孟庆峰 | 农作物种植状态解析系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2326429A (en) * | 1941-05-01 | 1943-08-10 | John E Black | Glue spreader, surface coater, and the like |
| SE465709B (sv) * | 1990-04-03 | 1991-10-21 | Btg Kaelle Inventing Ab | Foerfarande foer tvaasidig bestrykning av en loepande bana medelst tvaa motstaellda oeverfoeringsvalsar |
| ES2063563T3 (es) * | 1991-10-03 | 1995-01-01 | Casco Nobel Ab | Metodo de pegado. |
| WO1994027738A1 (fr) * | 1993-05-28 | 1994-12-08 | Tybar Engineering Pty Ltd | Systeme d'application d'adhesif |
| DE19600238A1 (de) | 1996-01-05 | 1997-07-10 | Dewitta Spezialmaschf | Vorrichtung zur Umwandlung einer Dreh- in eine Axialbewegung |
-
2000
- 2000-12-22 WO PCT/BE2000/000156 patent/WO2002051556A1/fr not_active Ceased
- 2000-12-22 AT AT00988523T patent/ATE275439T1/de not_active IP Right Cessation
- 2000-12-22 PL PL363287A patent/PL198199B1/pl unknown
- 2000-12-22 HU HU0302607A patent/HUP0302607A3/hu unknown
- 2000-12-22 EP EP20000988523 patent/EP1343595B1/fr not_active Expired - Lifetime
- 2000-12-22 SK SK860-2003A patent/SK286673B6/sk not_active IP Right Cessation
- 2000-12-22 HR HR20030352A patent/HRP20030352A2/hr not_active Application Discontinuation
- 2000-12-22 CZ CZ20031331A patent/CZ300433B6/cs not_active IP Right Cessation
- 2000-12-22 ES ES00988523T patent/ES2226972T3/es not_active Expired - Lifetime
- 2000-12-22 DE DE60013652T patent/DE60013652T2/de not_active Expired - Lifetime
- 2000-12-22 UA UA2003065753A patent/UA73224C2/uk unknown
-
2003
- 2003-06-18 BG BG107924A patent/BG107924A/bg unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02051556A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| SK286673B6 (sk) | 2009-03-05 |
| HRP20030352A2 (en) | 2005-04-30 |
| SK8602003A3 (en) | 2004-03-02 |
| DE60013652D1 (de) | 2004-10-14 |
| HUP0302607A2 (hu) | 2003-11-28 |
| WO2002051556A1 (fr) | 2002-07-04 |
| DE60013652T2 (de) | 2005-09-15 |
| PL198199B1 (pl) | 2008-06-30 |
| CZ20031331A3 (cs) | 2003-10-15 |
| HUP0302607A3 (en) | 2004-03-29 |
| UA73224C2 (en) | 2005-06-15 |
| CZ300433B6 (cs) | 2009-05-20 |
| ES2226972T3 (es) | 2005-04-01 |
| EP1343595B1 (fr) | 2004-09-08 |
| ATE275439T1 (de) | 2004-09-15 |
| PL363287A1 (en) | 2004-11-15 |
| BG107924A (bg) | 2004-01-30 |
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