EP1343595B1 - 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 effet Download PDFInfo
- Publication number
- EP1343595B1 EP1343595B1 EP20000988523 EP00988523A EP1343595B1 EP 1343595 B1 EP1343595 B1 EP 1343595B1 EP 20000988523 EP20000988523 EP 20000988523 EP 00988523 A EP00988523 A EP 00988523A EP 1343595 B1 EP1343595 B1 EP 1343595B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- cylinder
- installation
- applicator
- 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.)
- Expired - Lifetime
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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 a method improved indirect coating of a thin layer and uniform over a large width, i.e. a coating in which the material, in a conventional manner, is applied in a thin layer on a support which scrolls facing a cylinder, which continuously transfers the material coating on a support.
- the invention also relates to a device improved coating for supports of the order of 4m large.
- One or more counter cylinders are provided above the support by exerting a pinching effect (nip).
- Devices of this type are widely used, especially in the production of various floor and wall coverings.
- compositions suitable for this use have been described in the European patent application 0 087 0129.4 of June 15, 2000 in the name of the Claimant.
- composition of these varnishes which have generally a pronounced abrasive character constitutes a problem which has never been resolved in the prior art.
- Document WO91 / 15306 proposes the use an equalizing cylinder in contact with the cylinder proportioner.
- This cylinder has a tangential speed differential with respect to the dosing cylinder which allows remove excess material from the dosing cylinder by through a smooth transfer cylinder presenting a Shore A hardness of 60.
- This system does not allow apply abrasive varnishes in thin layers.
- EP-A 0550918 Has helical grooves engraved on transfer cylinders allowing a mixture of several components and a better distribution of the coating.
- the depth of the grooves plays a very important role. important and must always be optimized and adapted in depending on the coatings used. As part of this document, the grooves are relatively deep so keep their mixing function.
- the invention aims to avoid the drawbacks techniques used so far and aims to ensure at the outlet of the container containing this composition, adequate equalization of the coating composition taken by the applicator cylinder.
- a applicator cylinder receiving the coating composition contained in a tank or tank in which the cylinder applicator is partially submerged.
- the emerging part of the applicator cylinder, view of the equalization of 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 than the applicator cylinder and whose speed rotation device is different from that of the applicator cylinder.
- the installation used consists of classic way by a soaking tank, a cylinder applicator partially submerged in this tank and a cylinder equalizer of the coating composition for the support to coat 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 brought by the applicator cylinder, but involves the use of a cylinder equalizer provided with a coating of a material elastomer, rotating or not in the same direction of rotation than the applicator cylinder and whose peripheral speed of rotation is different from that of the cylinder applicator.
- the elastomeric coating chosen for the equalizing cylinder has sufficient hardness to cause an equalization and smoothing effect. It's about a rubber-like material having hardness Shore of the order of 45 to 80, preferably of the order of 65 to 70 Shore units. Of course, we choose a non-stick material for the coating composition.
- the applicator cylinders used are conventionally engraved cylinders, of the cylinder type gravure printing, in particular cylinders comprising pyramid, truncated, conical or lines of helical engravings intended to retain the coating composition taken during the passage through 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 film coating on the order of a few microns to 120 microns and more particularly of the order of 5 ⁇ m and 70 ⁇ m (thickness of the dry and possibly crosslinked coating material film made on the support).
- the peripheral speed (linear) of the applicator cylinder is around 20 to 40 m / min.
- the ratio of the peripheral speeds of the cylinder equalizer and applicator cylinder is achieved by a adjustment of the rotation speed (revolutions per minute) of the equalizing cylinder, taking into account the diameters respective cylinders and, of course, the directions of rotation.
- the installation includes the usual auxiliary equipment such as rollers detour or rollers, drying devices and / or UV crosslinking or others, support unwinders and reels for coated support, level regulator soaking tank, device for adjusting the spacing of cylinders, and drive and cutting mechanisms, etc.
- auxiliary equipment such as rollers detour or rollers, drying devices and / or UV crosslinking or others, support unwinders and reels for coated support, level regulator soaking tank, device for adjusting the spacing of cylinders, and drive and cutting mechanisms, etc.
- the attached figure shows schematically a view of an installation according to the invention.
- the meaning of rotation of the different cylinders and rollers is indicated schematically by arrows.
- This is partly submerged in the tank and feeds the coating composition to a support 9 to receive the coating and is shown conventionally in broken lines.
- This one comes from a diet and goes successively through a first guide roller 11 and passes between the cylinder applicator 5 covered with the coating composition and a or more counter cylinders 15 and 17 and ultimately is driven by this cylinder to a second roller guide 13, after having been coated in passing through the cylinder contact 5.
- the equalizer of the material removed and driven by the applicator cylinder 5 is made using a covered equalizing cylinder 19 of an envelope of an elastomeric material 21.
- This cylinder equalization 19 rotates in a direction of rotation which is, in the occurrence, 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.
- the specific speed chosen is such that ensures good equalization of the composition layer coating by a smoothing effect.
- the gear ratio linear (peripheral) of cylinders 5 and 19 which is chosen, however, essentially depends on the viscosity of this coating composition and, to some extent, the hardness of the envelope of elastomeric material.
- the effect equalizer contrary to what is observed during the use of a doctor blade, causes very little wear 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 fillers in the coating composition.
- a suitable device (not shown) can be provided for allow adjustment of the distance between the cylinder applicator 5 and the equalizing cylinder 19.
Landscapes
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Glass Compositions (AREA)
Description
Claims (8)
- Procédé d'enduction indirecte d'une couche mince sur des supports de grande largeur à l'aide d'un cylindre applicateur gravé, (5) comportant des lignes de rainures hélicoïdales, et destiné à recevoir la composition d'enduction (3), immergé en partie dans un bac ou réservoir (1) contenant ladite composition d'enduction, caractérisé en ce queladite couche mince résultant du procédé d'enduction a une épaisseur uniforme à l'état sec sur ledit support entre 5 et 70 µm,la largeur dudit support est de l'ordre de 4 m,ladite composition d'enduction (3) possède un caractère abrasif, et en cequ'à la sortie dudit bac ou réservoir (1), la partie émergente du cylindre applicateur (5), en vue de l'égalisation de la composition d'enduction, est en contact avec un cylindre égalisateur (19) pourvu d'un revêtement d'une matière élastomère (21), tournant ou non dans le même sens de rotation que le cylindre applicateur (5) et dont la vitesse périphérique de rotation est différente de celle du cylindre applicateur (5) .
- Procédé d'enduction indirecte d'une couche mince selon la revendication 1, caractérisé en ce que la quantité de ladite composition d'enduction abrasive humide sur ledit support de grande largeur est comprise entre 10 et 100 ml/m2.
- Installation pour la mise en oeuvre du procédé de la revendication 1, comportant un bac de trempage (1), un cylindre applicateur gravé (5) comportant des lignes de rainures hélicoïdales immergé en partie dans le bac (1) contenant la composition d'enduction pour le support (9) à enduire, caractérisée en ce que l'installation comporte un cylindre égalisateur (19) pourvu d'un revêtement d'une matière élastomère (21) tournant ou non dans le même sens de rotation que le cylindre applicateur (5) et dont la vitesse de rotation périphérique est différente de celle du cylindre applicateur (5).
- Installation selon la revendication 3, caractérisée en ce que le revêtement élastomère (21) pour le cylindre égalisateur (19) présente une dureté suffisante pour provoquer un effet d'égalisation et de lissage.
- Installation selon la revendication 4, caractérisée en ce que le revêtement élastomère (21) est réalisé en une matière du type caoutchouc présentant une dureté Shore entre 45 et 80 unités Shore.
- Installation selon la revendication 5, caractérisée en ce que le revêtement élastomère (21) est réalisé en une matière du type caoutchouc présentant une dureté Shore entre 65 et 70 unités Shore.
- Installation selon l'une quelconque des revendications 4 à 6, caractérisée en ce que le revêtement élastomère (21) est réalisé en une matière non adhérente pour la composition d'enduction.
- Utilisation du procédé selon la revendication 1 ou 2 ou de l'installation selon l'une quelconque des revendications 3 à 7 pour l'enduction de supports de grandes largeurs, typiquement de l'ordre de 4m dans le cas de produits de revêtement de sols synthétiques comprenant du PVC.
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 EP1343595A1 (fr) | 2003-09-17 |
EP1343595B1 true 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*** |
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 |
EP0550918B1 (fr) * | 1991-10-03 | 1994-11-09 | Casco Nobel Aktiebolag (reg. number 556004-5311) | Procédé d'encollage |
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 EP EP20000988523 patent/EP1343595B1/fr not_active Expired - Lifetime
- 2000-12-22 UA UA2003065753A patent/UA73224C2/uk unknown
- 2000-12-22 SK SK860-2003A patent/SK286673B6/sk not_active IP Right Cessation
- 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 HU HU0302607A patent/HUP0302607A3/hu unknown
- 2000-12-22 DE DE60013652T patent/DE60013652T2/de not_active Expired - Lifetime
- 2000-12-22 WO PCT/BE2000/000156 patent/WO2002051556A1/fr active IP Right Grant
- 2000-12-22 AT AT00988523T patent/ATE275439T1/de not_active IP Right Cessation
- 2000-12-22 PL PL363287A patent/PL198199B1/pl unknown
-
2003
- 2003-05-05 HR HR20030352A patent/HRP20030352A2/hr not_active Application Discontinuation
- 2003-06-18 BG BG107924A patent/BG107924A/bg unknown
Also Published As
Publication number | Publication date |
---|---|
CZ20031331A3 (cs) | 2003-10-15 |
UA73224C2 (en) | 2005-06-15 |
HUP0302607A2 (hu) | 2003-11-28 |
SK8602003A3 (en) | 2004-03-02 |
HUP0302607A3 (en) | 2004-03-29 |
PL198199B1 (pl) | 2008-06-30 |
ATE275439T1 (de) | 2004-09-15 |
BG107924A (bg) | 2004-01-30 |
ES2226972T3 (es) | 2005-04-01 |
DE60013652T2 (de) | 2005-09-15 |
WO2002051556A1 (fr) | 2002-07-04 |
DE60013652D1 (de) | 2004-10-14 |
EP1343595A1 (fr) | 2003-09-17 |
CZ300433B6 (cs) | 2009-05-20 |
SK286673B6 (sk) | 2009-03-05 |
PL363287A1 (en) | 2004-11-15 |
HRP20030352A2 (en) | 2005-04-30 |
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