EP0571304B1 - Apparatus for making double-sided coated fabrics - Google Patents
Apparatus for making double-sided coated fabrics Download PDFInfo
- Publication number
- EP0571304B1 EP0571304B1 EP93420199A EP93420199A EP0571304B1 EP 0571304 B1 EP0571304 B1 EP 0571304B1 EP 93420199 A EP93420199 A EP 93420199A EP 93420199 A EP93420199 A EP 93420199A EP 0571304 B1 EP0571304 B1 EP 0571304B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- substrate
- coating
- hand
- chamber
- 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
Links
- 239000004744 fabric Substances 0.000 title claims description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 7
- 239000000126 substance Substances 0.000 claims 3
- 238000009434 installation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003490 calendering Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/08—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by scraping
- D06B15/085—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by scraping by contact with the textile material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material
Definitions
- the present invention relates to installations used for coating fabrics or other flexible supports with a layer of synthetic material (polyvinyl chloride, resin, elastomer, etc.) with a view to producing a complex having a very high mechanical resistance combined with perfect impermeability.
- synthetic material polyvinyl chloride, resin, elastomer, etc.
- French patent no. 73 35081/2 245 165 FERRARI shows an installation equipped with a coating station comprising, first of all, means suitable for ensuring the longitudinal and transverse tension of the support, these means advantageously being constituted by the clamps or pins of a mobile train longitudinally. This support was thus kept under tension until the final calendering operation.
- the coating station also included at least one die oriented transversely to the direction of continuous advance of the support. This die had two parallel doctor blades offset with respect to each other in the direction of advance of the support, thereby defining a cavity or chamber supplied with coating material, this supply taking place continuously and under controlled pressure.
- the invention mainly consists in making the installation comprise two channels which are arranged in superposition on either side of the support to be coated so as to produce on the latter a double-sided coating.
- Fig. 1 is a perspective view schematically illustrating the arrangement of the double-sided coating station of an installation according to the invention.
- Fig. 2 is a partial longitudinal section showing on a larger scale the two opposite dies of the installation according to FIG. 1.
- reference 1 designates the support to be coated, assumed to be constituted by a fabric.
- This fabric 1 is animated by a continuous advance movement, oriented from left to right in FIG. 1.
- the fabric 1 is successively engaged between the superimposed drums of two calenders 2 and 3, arranged to continuously exert on said fabric a controlled tension effect, oriented longitudinally; associated with this longitudinal tension is a transverse tension, operated as in Patent N ° 73 35081/2 245 165 FERRARI, using an oar 4 for holding it wide, the clips or pins are applied to the longitudinal edges of the fabric 1 upstream of the grille 2.
- the coating station also comprises two superimposed dies 5 and 6, the arrangement of which appears on a larger scale in FIG. 2.
- Each die 5 or 6 is formed by a frame 7 permanently fixed to the structure of the station.
- Each frame 7 is associated with an upstream doctor blade 8 whose edge turned towards the fabric 1 has a rounded profile, and a downstream doctor blade 9 whose free edge applied against the fabric 1 has a pointed profile.
- the position of the doctor blades 8 and 9 in the vertical direction can be adjusted precisely, for example using screws such as those shown at 10, so that the application of the free edge of said doctor blades against the two opposite faces of the fabric 1 is capable of being fixed exactly exactly, as a function of various parameters, in particular the thickness of the coating layer to be deposited on each side, it being observed that this adjustment is capable of being carried out in such a way fully autonomous, for each of the two doctor blades of each die.
- the doctor blades 8 and 9 define, with the inner face of the frame 7 and the fabric 1, a cavity 11 intended to form the coating chamber.
- Each of the cavities or chambers 11 is connected, through a series of distributing channels 12 suitably spaced along the length of each die, to a collector 13 supplied by an independent reservoir 14, respectively 15, permanently filled with an appropriate quantity of material coating.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coating Apparatus (AREA)
- Treatment Of Fiber Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
La présente invention a trait aux installations utilisées pour enduire les tissus ou autres supports souples d'une couche de matière synthétique (polychlorure de vinyle, résine, élastomère, etc...) en vue de la réalisation d'un complexe présentant une très grande résistance mécanique jointe à une imperméabilité parfaite.The present invention relates to installations used for coating fabrics or other flexible supports with a layer of synthetic material (polyvinyl chloride, resin, elastomer, etc.) with a view to producing a complex having a very high mechanical resistance combined with perfect impermeability.
Le brevet français no. 73 35081/2 245 165 FERRARI montre une installation équipée d'un poste d'enduction comprenant en premier lieu des moyens propres à assurer la tension longitudinale et transversale du support, ces moyens étant avantageusement constitués par les pinces ou picots d'une rame mobile longitudinalement. Ce support était ainsi maintenu sous tension jusqu'à l'opération finale de calandrage.French patent no. 73 35081/2 245 165 FERRARI shows an installation equipped with a coating station comprising, first of all, means suitable for ensuring the longitudinal and transverse tension of the support, these means advantageously being constituted by the clamps or pins of a mobile train longitudinally. This support was thus kept under tension until the final calendering operation.
Le poste d'enduction comprenait également au moins une filière orientée transversalement par rapport à la direction d'avance continue du support. Cette filière comportait deux racles parallèles décalés l'un par rapport à l'autre dans le sens d'avance du support, en définissant de la sorte une cavité ou chambre alimentée en matière d'enduction, cette alimentation s'effectuant en continu et sous une pression contrôlée.The coating station also included at least one die oriented transversely to the direction of continuous advance of the support. This die had two parallel doctor blades offset with respect to each other in the direction of advance of the support, thereby defining a cavity or chamber supplied with coating material, this supply taking place continuously and under controlled pressure.
Les résultats obtenus par la mise en oeuvre du procédé ci-dessus rappelé se sont révélés excellents, eu égard notamment à la stabilité dimensionnelle des produits réalisés et à la couverture des crêtes des fils du tissu-support. L'expérience a démontré que l'obtention des meilleures performances impliquait la présence de couches multiples, ce qui nécessitait des installations de très grande longueur et un temps d'enduction plus important.The results obtained by the implementation of the above-mentioned process have proved to be excellent, having regard in particular to the dimensional stability of the products produced and to the coverage of the crests of the threads of the support fabric. Experience has shown that obtaining the best performance implies the presence of multiple layers, which requires very long installations and a longer coating time.
On a alors songé à déposer sur le support au moins une couche d'enduction sur chaque face, mais un tel processus obligeait à une double opération puisqu'à la sortie de la première enduction le complexe devait être envidé, puis retourné pour subir une seconde enduction sur la face opposée.We then thought of depositing on the support at least one layer of coating on each side, but such a process required a double operation since at the end of the first coating the complex had to be emptied, then returned to undergo a second coating on the opposite side.
Pour résoudre le problème posé par l'enduction double-face, on a bien proposé différents systèmes, notamment en opérant verticalement à l'aide d'encriers et de racles, ou en ayant recours à une enduction envers par cadre rotatif et endroit par racle, ou encore par plein bain ou par pulvérisation. Toutefois, les résultats obtenus ont été décevants.To solve the problem posed by double-sided coating, various systems have been proposed, in particular by operating vertically with inkstones and doctor blades, or by using a reverse coating by rotary frame and place by doctor blade, or by full bath or by spraying. However, the results obtained have been disappointing.
C'est au problème de l'enduction double-face des tissus et autres supports que l'invention entend apporter une solution originale, particulièrement avantageuse, et ce à l'aide de l'installation d'enduction qui est définie à la revendication 1.It is to the problem of double-sided coating of fabrics and other supports that the invention intends to provide an original, particularly advantageous solution, and this using the coating installation which is defined in
En fait l'invention consiste principalement à faire comporter à l'installation deux filières qui sont disposées en superposition de part et d'autre du support à enduire de manière à réaliser sur ce dernier une enduction double-face.In fact the invention mainly consists in making the installation comprise two channels which are arranged in superposition on either side of the support to be coated so as to produce on the latter a double-sided coating.
Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig. 1 est une vue en perspective illustrant de manière schématique l'agencement du poste d'enduction double-face d'une installation suivant l'invention.Fig. 1 is a perspective view schematically illustrating the arrangement of the double-sided coating station of an installation according to the invention.
Fig. 2 est une coupe longitudinale partielle montrant à plus grande échelle les deux filières opposées de l'installation suivant fig. 1.Fig. 2 is a partial longitudinal section showing on a larger scale the two opposite dies of the installation according to FIG. 1.
En fig. 1, la référence 1 désigne le support à enduire, supposé constitué par un tissu. Ce tissu 1 est animé d'un mouvement d'avance continu, orienté de gauche à droite en fig. 1. Au cours de son déplacement, le tissu 1 est successivement engagé entre les tambours superposés de deux calandres 2 et 3, agencées pour exercer en continu sur ledit tissu un effet de tension contrôlée, orientée longitudinalement ; à cette tension longitudinale est associée une tension transversale, opérée comme au Brevet N° 73 35081/2 245 165 FERRARI, à l'aide d'une rame 4 de maintien au large, dont les pinces ou picots sont appliqués aux bords longitudinaux du tissu 1 en amont de la calandre 2.In fig. 1,
On est ainsi assuré que l'enduction double-face, effectuée à l'horizontale sur la portion du tissu 1 qui est comprise entre les deux calandres 2 et 3, est réalisée alors que ledit tissu est maintenu sous une tension longitudinale et transversale parfaitement contrôlée (flèches F1 et F2).It is thus ensured that the double-sided coating, carried out horizontally on the portion of the
Le poste d'enduction comprend encore deux filières superposées 5 et 6, dont l'agencement apparaît à plus grande échelle en fig. 2.The coating station also comprises two
Chaque filière 5 ou 6 est formée par un bâti 7 fixé à demeure à la structure du poste. A chaque bâti 7 sont associés un racle amont 8 dont le bord tourné en direction du tissu 1 présente un profil arrondi, et un racle aval 9 dont le bord libre appliqué contre le tissu 1 comporte un profil en pointe. La position des racles 8 et 9 dans le sens vertical peut être réglée de manière précise, par exemple à l'aide de vis telles que celles représentées en 10, de sorte que l'application du bord libre desdits racles contre les deux faces opposées du tissu 1 est susceptible d'être fixée de façon parfaitement exacte, en fonction de différents paramètres, tout particulièrement de l'épaisseur de la couche d'enduit à déposer sur chaque face, étant observé que ce réglage est susceptible d'être effectué de manière entièrement autonome, pour chacun des deux racles de chaque filière.Each die 5 or 6 is formed by a
On conçoit que pour chaque filière 5 et 6, les racles 8 et 9 définissent, avec la face intérieure du bâti 7 et le tissu 1, une cavité 11 destinée à former chambre d'enduction. Chacune des cavités ou chambres 11 est reliée, à travers une série de canaux répartiteurs 12 convenablement espacés sur la longueur de chaque filière, à un collecteur 13 alimenté par un réservoir indépendant 14, respectivement 15, rempli en permanence d'une quantité appropriée de matière d'enduction.It is understood that for each
On comprend qu'en modifiant la hauteur respective des réservoirs 14 (filière supérieure 5) et 15 (filière inférieure 6), l'opérateur est en mesure de régler très précisément la pression de la matière d'enduction à l'intérieur de chacune des cavités 11 du poste.It is understood that by modifying the respective height of the reservoirs 14 (upper die 5) and 15 (lower die 6), the operator is able to very precisely adjust the pressure of the coating material inside each of the 11 cavities of the post.
Les essais ont démontré que moyennant un contrôle serré de la vitesse d'avance du tissu 1, du différentiel existant entre les pressions à l'intérieur des deux chambres 11 et de la pression d'application des racles 8 et 9 contre les deux faces opposées dudit tissu, on obtenait une maitrise totale du taux de pénétration des deux couches envers et endroit, ce taux de pénétration permettant de garantir d'une part l'adhérence des matières enduites sur le tissu ou support 1 à l'endroit comme à l'envers, d'autre part la résistance à la déchirure des complexes enduits finalement obtenus.Tests have shown that by tight control of the speed of advance of the
Il n'est pas sans intérêt d'observer que l'enduction double-face à l'horizontale telle qu'opérée à l'aide de l'installation suivant l'invention évite radicalement tous les phénomènes de coulée rencontrés dans les systèmes d'enduction à la verticale.It is not without interest to observe that the double-sided horizontal coating as carried out using the installation according to the invention radically avoids all the casting phenomena encountered in vertical coating systems.
Claims (6)
- An apparatus for coating fabrics or other flexible substrates unwound in a horizontal direction, of the kind provided with a coating station comprising on the one hand, means (2-3 and 4) capable of ensuring the longitudinal and transverse tension of the substrate (1), on the other hand, at least one die (5, 6) orientated transversely relative to the continuous feeding direction of the said substrate, which die comprises two parallel doctor blades (8, 9) that are interspaced relative to one another in the feeding direction of the substrate, so as to define a cavity or chamber continuously fed with a coating substance at a controlled pressure, characterized in that it comprises two dies (5, 6) that are disposed in superposition on either side of the substrate (1) so as to obtain a double-sided coating on the latter.
- An apparatus according to claim 1, characterized in that the edge of the doctor blades (8, 9) of each die which is applied against the substrate (1) is made with a rounded profile for the upstream doctor blade (8) and a pointed profile for the downstream doctor blade (9).
- An apparatus according to any one of claims 1 and 2, characterized in that each die (5, 6) includes a fixed frame (7), against the two sides whereof the two doctor blades (8, 9) are fixed in a manner allowing adjustment in their vertical position.
- An apparatus according to any one of claims 1 to 3, characterized in that each die (5, 6) comprises a manifold (13) which is connected via a series of distribution ducts (12) to the cavity or chamber (11) of the die in question.
- An apparatus according to claim 4, characterized in that each manifold (13) is supplied with the coating substance by means of a reservoir (14, 15) that is constantly being refilled and whose height position can be modified so as to permit the precise adjustment of the pressure of the substance inside the chamber (11) of each die (5, 6).
- An apparatus according to any one of claims 1 to 5, characterized in that the tensioning means are constituted on the one hand, by a tenter (4) which holds the longitudinal edges of the substrate (1), on the other hand, by two calenders (2, 3) provided on either side of the two superposed dies (5, 6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9206456A FR2691482A1 (en) | 1992-05-21 | 1992-05-21 | Installation for double-sided coating of fabrics or other flexible supports. |
| FR9206456 | 1992-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0571304A1 EP0571304A1 (en) | 1993-11-24 |
| EP0571304B1 true EP0571304B1 (en) | 1997-11-12 |
Family
ID=9430214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93420199A Expired - Lifetime EP0571304B1 (en) | 1992-05-21 | 1993-05-17 | Apparatus for making double-sided coated fabrics |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0571304B1 (en) |
| AT (1) | ATE160185T1 (en) |
| DE (1) | DE69315118T2 (en) |
| ES (1) | ES2110073T3 (en) |
| FR (1) | FR2691482A1 (en) |
| TN (1) | TNSN93057A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101185132B1 (en) | 2006-02-27 | 2012-09-24 | 코오롱인더스트리 주식회사 | Method for continuous coating on both sides of a fabric |
| CN111648005B (en) * | 2020-05-19 | 2021-09-24 | 温州佳远生物科技有限公司 | A kind of multi-component fiber blended fabric and preparation method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3473512A (en) * | 1968-04-22 | 1969-10-21 | Owens Corning Fiberglass Corp | Coating dies |
| JPS571305B2 (en) * | 1974-06-08 | 1982-01-11 | ||
| GB1604620A (en) * | 1977-11-10 | 1981-12-09 | Britton A | Application of liquid material to webs |
| JPS54114546A (en) * | 1978-02-23 | 1979-09-06 | Ibm | Coating method and apparatus therefor |
| DE2824376A1 (en) * | 1978-06-03 | 1979-12-06 | Bayer Ag | FIBER IMPREGNATION PROCESS |
| DE2913053C3 (en) * | 1979-03-31 | 1981-11-19 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Device for applying liquid substances to material webs |
| DE3226652A1 (en) * | 1982-07-16 | 1984-01-19 | Mathias 4815 Schloss Holte Mitter | METHOD AND DEVICE FOR COLORING, PRINTING, TREATING OR COATING A GOODS OR THE LIKE. WITH DIFFERENT FIBER OR THREAD SHARES |
| CA2015159C (en) * | 1989-05-09 | 1997-02-04 | James Ralph Terry | On line surface and edge coating of fiber glass duct liner |
-
1992
- 1992-05-21 FR FR9206456A patent/FR2691482A1/en active Granted
-
1993
- 1993-05-17 ES ES93420199T patent/ES2110073T3/en not_active Expired - Lifetime
- 1993-05-17 DE DE69315118T patent/DE69315118T2/en not_active Expired - Lifetime
- 1993-05-17 EP EP93420199A patent/EP0571304B1/en not_active Expired - Lifetime
- 1993-05-17 AT AT93420199T patent/ATE160185T1/en active
- 1993-05-18 TN TNTNSN93057A patent/TNSN93057A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE160185T1 (en) | 1997-11-15 |
| DE69315118T2 (en) | 1998-04-16 |
| ES2110073T3 (en) | 1998-02-01 |
| FR2691482A1 (en) | 1993-11-26 |
| FR2691482B1 (en) | 1994-07-13 |
| EP0571304A1 (en) | 1993-11-24 |
| DE69315118D1 (en) | 1997-12-18 |
| TNSN93057A1 (en) | 1994-03-17 |
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