EP1020761B1 - Méthode et dispositif pour préparer un revêtement multicouche sur un support - Google Patents

Méthode et dispositif pour préparer un revêtement multicouche sur un support Download PDF

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Publication number
EP1020761B1
EP1020761B1 EP99200152A EP99200152A EP1020761B1 EP 1020761 B1 EP1020761 B1 EP 1020761B1 EP 99200152 A EP99200152 A EP 99200152A EP 99200152 A EP99200152 A EP 99200152A EP 1020761 B1 EP1020761 B1 EP 1020761B1
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EP
European Patent Office
Prior art keywords
coating
nozzle
layers
cavity
support
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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EP99200152A
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German (de)
English (en)
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EP1020761A1 (fr
Inventor
Iskandar Gandasasmita
Anton Petrus Maria Van Der Pluijm
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Fujifilm Manufacturing Europe BV
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Fujifilm Manufacturing Europe BV
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Priority to DE69917584T priority Critical patent/DE69917584T2/de
Priority to EP99200152A priority patent/EP1020761B1/fr
Publication of EP1020761A1 publication Critical patent/EP1020761A1/fr
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Publication of EP1020761B1 publication Critical patent/EP1020761B1/fr
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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
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work

Definitions

  • the invention relates to a method for multi layer coating of a support, for forming photographic material.
  • US 4 297 396 discloses a method and apparatus for applying multi layer coating on a support, comprising supplying means in the forms of pumps, pipes, and supply nozzle connected to slotlike cavities.
  • a support to be coated for example a flexible support or web, is conveyed around a rotating drum.
  • the surface of the coating head is sloping downward into the direction of said drum.
  • the slotlike cavities extend over approximately its full width.
  • the coating head has more than two slots positioned parallel to each other.
  • a supply nozzle is attached to each cavity for supplying a coating material, which is forced out of said slot and onto the surface of the coating head. Said coating material forms a layer on said surface, streaming downward into the direction of said drum.
  • the coating material emerging from a slot positioned higher on said sloping surface flows down and over a layer of coating material emerging from a slot positioned lower on said surface.
  • a stream of multi layer coating material flows onto said drum, that is, onto a support positioned on said drum.
  • Such coating apparatus is shown in and discussed with respect to Figs. 1 and 2.
  • each cavity is connected to a nozzle for introducing into said cavity one coating material, thus resulting in a number of layers of coating material on the support which corresponds to the number of slots provided in said surface.
  • US 5,186,754 discloses an extruder for coating magnetic layers onto electromagnetic recording tape, which is provided with two reservoirs and two outlet channels so as to permit simultaneous coating of two layers. Two outlet channels are provided, merging into a slotlike cavity which opens upwardly. A tape to be coated is moved over the slot such that the coating materials are supplied directly onto said tape, forming a meniscus between the tape and the head.
  • This extruder is used for coating materials having a high viscosity and is known as "slot coating".
  • JP 63-164022 discloses a similar "slot coating" type extruder for coating with coating materials having a high viscosity brought directly onto a support from a coating cavity.
  • One object of the present invention is to provide a method for multi layer coating of a support as discussed in the introduction, in which the drawbacks of the known method as discussed hereabove are avoided, maintaining the advantages thereof.
  • This main object is reached according to the present invention by providing a method having the features of claim 1.
  • a number of layers to be brought onto said support can be chosen, generally irrespective of the number of slots provided.
  • each layer forming of coating material enables to provide a number of coating layers being at least one higher than the number of slots provided. This makes it possible to expand the number of layers of coating material without the necessity of increasing the number of slots.
  • a further advantage is that depending on the product to be made the number of layers can be chosen at will, starting with the same number of slots.
  • a method according to the present invention is further characterized by the features of claim 3.
  • the invention further relates to a device for multi layer coating of a support, especially for forming photographic material, characterized by the features of claim 11.
  • Such device has the advantage that it can be of a relatively simple and economical design, offering the possibility to provide a relatively large number of layers carried on a support, the layers being positioned on top of each other without the necessity of providing a number of slots which is the same as the number of layers.
  • Such device is especially suitable for use with a method according to the present invention.
  • the novel means provided in a device according to the present invention preferably comprises a number of aeparate nozzles, one for each cavity, which nozzles are preferably interchangeable or nozzles having a different number of compartments, that is intended for introducing a different number of separate streams of coating materials into the cavity attached thereto.
  • nozzles are preferably interchangeable or nozzles having a different number of compartments, that is intended for introducing a different number of separate streams of coating materials into the cavity attached thereto.
  • Each nozzle is attached to the cavity preferably from the right hand or left hand side of the coating head.
  • layers can be provided having a relatively small thickness.
  • layers of said coating material can be provided having even smaller thickness. It will be clear that said thickness can be adjusted by adjustment of the velocity of the stream.
  • a device according to the present invention is further characterized by the features of claim 13.
  • the invention further relates to a nozzle for use in a device for multi layer coating of a support, characterized by the features of claim 16.
  • Such nozzle With such nozzle a series of layers of coating material can be provided from one single slot. Such nozzle is used with a device according to the present invention. Such nozzle can also replace a nozzle of the known type, thus changing a device according to the prior art into a device according to the present invention.
  • An apparatus is generally known as a 'multi layer slide bead coating apparatus'.
  • Such apparatus comprises a drum 1 around which a supportlike photographic paper or -film to be coated is guided in the direction of the arrow S.
  • a coating head 3 is positioned close to said drum 1.
  • Said coating head 3 has a sloping surface 4, the lower end of which extends parallel to the axis R of rotation of the drum 1.
  • the coating head 3 is provided with three slotlike cavities 5, 6, 7, in this case parallel to each other and to the axis of rotation R of the drum 1, extending over the full width of the surface 4 of the coating head 3.
  • Each cavity 5, 6, 7 is at its lower end connected to nozzle means 8, 9, 10. 17 is a pressure reducing chamber connected to a section blower 16.
  • a conventional nozzle 10 is shown, screwed into the right hand side opening of the lower end of the cavity 7, which nozzle comprises attachment means 11, for example for bolting said nozzle 10 to the coating head 3 and a feed pipe 12 to be connected to supply means 13, comprising pump means 14 and a supply pipe 15.
  • the pump means 14 is connected to an appropriate source of coating material, not shown.
  • the further nozzles are schematically showns as arrows 8, 9.
  • each nozzle 8, 9, 10 comprises only one compartment within the feed pipe 12, such that through each of these nozzles 8, 9, 10 only one coating solution can be supplied to the cavity 5, 6, 7 to which each of said nozzles 8, 9, 10 is attached respectively.
  • a coating material is forced onto the surface 4, each coating solution forming a free flowing stream over said surface into the direction of and onto the support 2 provided on the drum 1.
  • the stream of coating solution flowing from the middle cavity 6 will flow on top of the coating solution provided through the lower cavity 5, the coating solution flowing from the upper cavity 7 will flow onto the coating solution flowing from the middle cavity 6.
  • a three layered coating will be provided on the support 2.
  • a number of layers can be provided on a support at most equal to the number of cavities 5, 6, 7 provided in the coating head 3.
  • nozzles with at least two compartments, each compartement designed for supplying a specific coating solution to the cavity to which the nozzle is attached, such that the number of layers which can be provided onto a support 2 can be at least one higher than the number of cavities.
  • Exemplary embodiments of nozzles according to the present invention are presented in Figs. 3-5, which however should not be considered as limiting the scope of the present invention.
  • Fig. 3 shows a nozzle 109, in side and front view, comprising attachment means 111, such as a flange provided with a number of through bores for bolting said nozzle 109 to a coating head 3 in a conventional manner.
  • the nozzle 109 further comprises a feed pipe 112, which is devided into two compartments 117, 118 by a dividing wall 121 which, during use, extends in a plane, approximately vertical and parallel to the cavity 6 to which the nozzle 109 is to be connected.
  • the first end 122 of the compartments 117, 118 is open to be connected to said cavity.
  • the opposite second end 123 of the first compartment 118 is connected to a first adaptor 124 having first connecting means 125 for connection to a first supply pipe 115 (not shown in Figs. 3-5) for supply of a coating solution.
  • the second end 123 of the second compartment 117 is connected to a second adapter 126 provided with second connecting means 127 for connection to a second supply pipe 115 for a further coating solution.
  • the first adaptor 125 is elbow shaped, the second adaptor 126 being straight, such that sufficient room is provided for connecting said supply pipes 115 to said connecting means 125, 127 respectively.
  • the dividing wall 121 extends through the full length of the feed pipe 112, such that the adaptors 124, 126 and the compartments 117, 118 are strictly separated, as are coating solutions provided therethrough.
  • Fig. 6a shows, by way of example, the use of a nozzle 109 connected to the middle cavity 6 of a coating head 3.
  • a first coating solution I is provided on the surface 4 by the lower cavity 5, a second II and third III coating solution by the middle cavity 6 and a fourth coating solution IV by the upper cavity 7.
  • the second coating solution II is introduced through the second compartment 118, the third coating soluting III through the first compartment 117 when the nozzle 109 is connected to said cavity 6 at the right hand side, seen from the lower end of the coating head 3,
  • Fig. 4 shows a second embodiment of a nozzle 209 according to the present invention having attachment means 211 comparable to Fig. 3.
  • the feed channel 212 is divided into three compartments 217, 218, 219, by two dividing walls 221a, 221b.
  • Said dividing walls 221a, 221b can be parallel or not parallel to each other. These two walls can be curved such that the compartment 218 has a special shape of cross section.
  • Said dividing walls are extended during use, to the cavity 6 to which the nozzle 209 is attached.
  • a first adaptor 224 having first connecting means 225 for a first supply pipe 15 is elbow shaped and is connected to the second end 223 of the first compartment 217 and the third compartment 219, for supplying the same coating solution through both compartments 217, 219.
  • a second adaptor 226, having second connection means 227 is connected to the second end 223 of the second, middle compartment 218, for supplying a further coating solution through said middle compartment.
  • the first end 222 of the compartments 217, 218, 219 is during use connected to one of the cavities of a coating head 3.
  • a nozzle 209 When a nozzle 209 is connected to the middle cavity 6 of a coating head 3, conventional nozzles 8, 10 being connected to the lower and upper cavities 5, 7, five layers of coating solution can be brought onto the surface 4 and onto the support 2.
  • a first coating solution I is supplied through the lower cavity 5
  • a second coating solution II and third coating solution III are supplied through the middle cavity 6
  • a fourth coating solution IV is supplied through the upper cavity 7.
  • the second coating solution is supplied through the first adaptor 224 and the first, outer compartments 217, 219, the third coating solution III through the second adaptor 226 and the second, middle compartment 218 of the nozzle 209.
  • a coating head 3 having three cavities, five layers can be provided on a support 2, the first layer 31 made of solution I, the second layer 32 of solution II, the third layer 33 of solution III, the fourth layer 34 agains of solution II and the fifth layer 35 of solution IV.
  • Fig. 5 shows a third embodiment of a nozzle 309, comparable to the nozzle 209 as shown in Fig. 4.
  • the compartments 317, 318, 319 are, at the second end 323 of the feed pipe 312 connected to individual adaptors.
  • the first compartment 317 is connected to a first adaptor 324 with first connecting means 325
  • the second, middle compartment 318 is connected to a second adaptor 326 having second connecting means 327
  • the third compartment 319 is connected to a third adaptor 328 having third connecting means 329.
  • the nozzle 309 is once again provided with attachment means 311 as discussed before.
  • the first 324 and third 328 adaptors are elbow-shaped, the second 326 is straight.
  • Fig. 6c the result of the use of a nozzle 309, connected to the middle cavity 6 is shown, conventional nozzles being connected to the further cavities.
  • a first coating solution I is provided onto the surface 4 through the lower cavity 5, second II, third III and fourth IV coating solutions through the middle cavity 6.
  • a fifth coating solution V is provided through the upper cavity 7.
  • the second coating solution is introduced through the first compartment 319, the third coating solution III through the second, middle compartment 318, the fourth coating solutin IV through the third compartment 317 when the nozzle 309 is connected to the coating head at the right hand side, seen from the lower end of the coating head 3.
  • a first layer 41 is made of the first solution I
  • the second layer 42 is made of the second solution II
  • a third layer 43 is made of the third solution III
  • a fourth layer 44 is made of the fourth solution IV
  • the coating head 3 has three cavities, a nozzle according to the present invention being attached to the middle cavity. It will be understood that a different number of cavities , for example more than four, can be provided, whereas a nozzle according to the present invention, as for example shown in Figs. 3, 4 and 5 could be connected to any one of said cavities. Thus, a different number and/or of layers of coating solution could be provided by an appropriate selection of the number of cavities and the nozzles used. Moreover, nozzles could be provided having a different number of compartments, for example four or more, similar to the two or three compartment nozzles as shown.
  • a coating apparatus as shown in Figs. 1 and 2 adapted according to the present invention was used for multi layer coating on polyethylene resin laminated paper for photographic purposes.
  • the resin contained white pigment (TiO 2 ) and blue dye (ultramarine).
  • Conventional nozzles 8, 10 were connected to the lower and upper cavities 5, 7, a nozzle 209 according to Fig. 4 was connected to the middle cavity 6, at the right hand side, seen from the lower end of the coating head 3. This resulted in a multi layer structure as schematically shown in Fig. 6b.
  • a first, colourless coating solution I was provided as underlayer 31.
  • the second 32 and fourth layer 34, provided through the first and third compartments 217, 219 were a gelatine coating solution, containing cyan dye
  • the fifth coating solution V was again colourless, and provided for a protective layer 35.
  • the colouring dyes were introduced in the various layers (31, 32, 33) in order to establish whether the desired multi layer coating structure was accomplished or not.
  • the surface colour of the coated support would be homogenous, whereas when said multi layer structure is not appropriately achieved over the full width of said support the surface colour of the side edges of said support would be different from the surface colour near the center thereof.
  • the width of the magenta band does indicate an unevenness of thickness of said coated layers.
  • the width of the magenta band could be minimized meaning optimisation of the multi layer structure.
  • the influence of the flow ratio between the third 33 and fourth layers 34 on the width of the magenta bands (centimeters) is shown in Fig. 7a.
  • the influence of the viscosity of the third coating solution III on said width of the magenta band (centimeters) is shown in Fig. 7b
  • the influence of the viscosity of the second coating solution II (second 32 and fourth layer 34) on said width of the magenta band (centimeters) is shown in Fig. 7c.
  • the viscosities are measured in cP.
  • a coating head different numbers of cavities and nozzles can be used, at least one of said nozzles being according to the present invention.
  • said nozzles can have a different number of compartments, chosen appropriately with respect to the number of layers desired.
  • the nozzles could have a different but similar design and could for example be connected to both sides of a cavity.
  • the or each dividing wall of said nozzle could extend beyond the attachment means 111, 211, 311, during use, into the lower end of the cavity to which the nozzle is attached, such that during use the compartments extend into said cavity.
  • a nozzle, preferably according to the present invention could be attached to the underside of the cavity, providing for a more straight path of travel of the coating solutions.
  • Different attachment means and supply means could be provided, depending on for example the coating solutions to be used.
  • a similar coating head could also be used with different means for supplying the support to be multi layer coated, as long as the coating solutions can flow onto said support.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (16)

  1. Procédé pour former un matériau de surface sensible photographique par application multicouche d'un support (2) dans lequel un nombre de couches I à V de matériau de revêtement est positionné sur un support (2) en fournissant lesdits matériaux de revêtement à travers des buses (8, 9, 10 ; 109, 209 ; 309) dans des cavités en forme de fentes (5, 6, 7), dans lequel les matériaux de revêtement sont forcés de sortir desdites cavités (5, 6, 7) jusque, sur une surface en pente (4) d'une tête d'enduction (3), formant un courant de matériau de revêtement multicouche qui coule jusque sur ledit support (2), caractérisé en ce qu'au moins une des buses (9, 109, 209, 309) est pourvue de moyens pour introduire au moins deux courants séparés (II, III, IV) de matériau de revêtement pour former au moins deux couches séparées dans une cavité (6) attachée à celle-ci, de sorte qu'un nombre de couches (1 à 11) est amené jusque sur ladite surface (4) de ladite tête d'enduction (3) et jusque sur ledit support (2) étant au moins un de plus que le nombre de fentes prévues.
  2. Procédé selon la revendication 1, dans lequel à travers ladite au moins une buse (309) au moins trois courants séparés de matériau de revêtement sont introduits dans la cavité attachée à celle-ci.
  3. Procédé selon la revendication 2, dans lequel au moins trois matériaux de revêtement différents sont introduits à travers ladite au moins une busc (309).
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel des courants de matériau de revêtement sont fournis à travers au moins trois fentes (5, 6, 7), dans lequel à travers au moins une fente (6), positionnée entre les fentes (5, 7) étant les première et dernière dans le rang de fentes successives, au moins deux courants séparés de matériau de revêtement sont fournis.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel trois couches (II, III, IV) sont fournies par une buse (309), parmi lesquelles une couche médiane est réalisée à partir d'un matériau ayant une viscosité étant inférieure par rapport à la viscosité d'un des matériaux de revêtement des couches à côté de celle-ci.
  6. Procédé selon la revendication 5, dans lequel le rapport de viscosités entre la couche médiane et une des couches à côté de celle-ci parmi lesdites trois couches est inférieur à 0,5.
  7. Procédé selon la revendication 6, dans lequel le rapport de viscosités entre la couche médiane et une des couches à côté de celle-ci parmi lesdites trois couches est inférieur à 0,25.
  8. Procédé selon l'une quelconque des revendications précédentes, dans lequel au moins trois couches sont fournies par une buse, dans lequel le rapport de vélocité entre la couche médiane et une dès couches à côté de celle-ci parmi lesdites trois couches est intérieur à 1.
  9. Procédé selon la revendication 8, dans lequel ledit rapport est inférieur à 0,75.
  10. Procédé selon la revendication 9, dans lequel ledit rapport est inférieur à 0,5.
  11. Dispositif pour former un matériau de surface sensible photographique en appliquant un revêtement multicouche sur un support (2) comprenant un nombre cavités en forme de fente (5, 6, 7), des moyens de buse (8, 9, 10, 109, 209, 309) étant raccordés à chaque cavité (5, 6, 7), à travers lesquels le matériau de revêtement peut être forcé à travers ladite cavité (5, 6, 7) attachée à celle-ci, dans lequel une tête d'enduction (3) est fournie ayant une surface en pente (4) pour guider lesdits matériaux de revêtement à partir desdites cavités (5, 6, 7) jusque sur un support (2), caractérisé en ce qu'au moins un desdits moyens de buse (9, 109, 209, 309) est pourvu d'au moins deux compartiment séparés (117, 118 ; 217, 218, 219 ; 317, 318, 319) raccordés à une cavité, au moins un desdits compartiment pouvant être raccordé à des moyens d'alimentation pour un premier matériau de revêtement, au moins un autre compartiment pouvant être raccordé à des moyens d'alimentation pour un second matériau de revêtement, de sorte qu'au moins deux courants séparés de matériaux de revêtement (I à V) peuvent être introduits à partir de ladite buse, à travers la cavité (5, 6, 7) attachée à celle-ci et jusque sur ledit support (2).
  12. Dispositif selon la revendication 11, dans lequel au moins deux cavités (5, 6, 7) sont fournies, séparées des buses étant fournies pour chaque cavité.
  13. Dispositif selon l'une quelconque des revendications 11 ou 12, dans lequel ledit au moins un moyen de buse (109, 209, 309) est pourvu d'au moins deux compartiment (117, 118 ; 217, 218, 219 ; 317, 318, 319) positionnés au moins à côté l'un de l'autre vus dans une direction perpendiculaire à la direction de sortie de ladite buse.
  14. Dispositif selon l'une quelconque des revendications 11 à 13, dans lequel ladite au moins une buse (109, 209, 309) a au moins deux canaux d'écoulement (117, 118 ; 217, 218, 219 ; 317, 318, 319) avec une section transversale elliptique ou rectangulaire, au moins deux canaux d'alimentation étant raccordés aux premières extrémités desdits canaux d'écoulement, les extrémités opposées de ceux-ci étant ouvertes.
  15. Dispositif selon la revendication 14 dans lequel ladite au moins une buse (109, 209, 309) a au moins une paroi de séparation (121, 221, 321) s'étendant verticalement.
  16. Buse destinée à être utilisée dans un dispositif pour former un matériau de surface sensible photographique en appliquant un revêtement multicouche sur un support selon l'une quelconque, des revendications 11 à 15, ladite buse ayant au moins deux canaux d'écoulement et au moins deux canaux d'alimentation pouvant être raccordés aux premières extrémités desdits canaux d'écoulement, dans laquelle lesdits canaux d'écoulement (117, 118 ; 211, 218, 219 ; 317, 318, 319) ont une première extrémité (122, 222, 322) pouvant être raccordée à une cavité (5, 6, 7) d'une tête d'enduction (3), la direction d'écoulement à travers ladite première extrémité étant parallèle à la direction longitudinale de ladite cavité.
EP99200152A 1999-01-18 1999-01-18 Méthode et dispositif pour préparer un revêtement multicouche sur un support Expired - Lifetime EP1020761B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69917584T DE69917584T2 (de) 1999-01-18 1999-01-18 Verfahren und Vorrichtung zur Bildung von Mehrschichtenüberzügen auf einem Träger
EP99200152A EP1020761B1 (fr) 1999-01-18 1999-01-18 Méthode et dispositif pour préparer un revêtement multicouche sur un support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99200152A EP1020761B1 (fr) 1999-01-18 1999-01-18 Méthode et dispositif pour préparer un revêtement multicouche sur un support

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EP1020761A1 EP1020761A1 (fr) 2000-07-19
EP1020761B1 true EP1020761B1 (fr) 2004-05-26

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164022A (ja) * 1986-12-26 1988-07-07 Fuji Photo Film Co Ltd 磁性液の塗布方法
JP2634440B2 (ja) * 1988-07-27 1997-07-23 トミー機械工業株式会社 Ｔダイへの複数の溶融樹脂の送給方法および装置
JP2714850B2 (ja) * 1989-04-07 1998-02-16 コニカ株式会社 塗布装置および重層塗布方法
DE3929002A1 (de) * 1989-09-01 1991-03-14 Schmidt Erwepa Maschf Vorrichtung zum extrudieren von kunststoff-mehrschichtfolien oder -platten
JPH08117930A (ja) * 1994-10-24 1996-05-14 Nippon Steel Corp 多層合金薄帯製造用ノズル
JPH09327501A (ja) * 1996-06-12 1997-12-22 Kao Corp 継ぎ目無しカプセル粒子の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KISTLER S.F.; SCHWEIZER P.M.: "Liquid Film Coating", 1997, CHAPMAN AND HALL, LONDON *

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EP1020761A1 (fr) 2000-07-19
DE69917584T2 (de) 2005-06-16
DE69917584D1 (de) 2004-07-01

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