WO2008038563A1 - Applying apparatus, and applying method - Google Patents

Applying apparatus, and applying method Download PDF

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Publication number
WO2008038563A1
WO2008038563A1 PCT/JP2007/068262 JP2007068262W WO2008038563A1 WO 2008038563 A1 WO2008038563 A1 WO 2008038563A1 JP 2007068262 W JP2007068262 W JP 2007068262W WO 2008038563 A1 WO2008038563 A1 WO 2008038563A1
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WO
WIPO (PCT)
Prior art keywords
coating
gantry
web
die
coating apparatus
Prior art date
Application number
PCT/JP2007/068262
Other languages
French (fr)
Japanese (ja)
Inventor
Takeo Yamada
Kazuya Kojima
Original Assignee
Fujifilm Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujifilm Corporation filed Critical Fujifilm Corporation
Priority to CN2007800353270A priority Critical patent/CN101516527B/en
Publication of WO2008038563A1 publication Critical patent/WO2008038563A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254Coating heads with slot-shaped outlet
    • B05C5/0262Coating heads with slot-shaped outlet adjustable in width, i.e. having lips movable relative to each other in order to modify the slot width, e.g. to close it
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254Coating heads with slot-shaped outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/26Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0245Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web

Definitions

  • the present invention relates to a coating apparatus and a coating method, and in particular, a photographic photosensitive emulsifier, a magnetic liquid, a viewing angle improving film, a solution for forming an antireflection film, a coloring liquid for a color filter, and a surface protection.
  • the present invention relates to a coating apparatus and a coating method for coating a coating solution such as a solution for forming a film on a support such as a plastic film, paper, or metal foil.
  • a die-coating method is known as a method for applying a coating solution to the surface of a moving support (web or the like).
  • a technique for forming a highly accurate laminated film in a region where the lubricating film thickness is 20 [111] or less is 20 [111] or less. Yes.
  • the accuracy of the coating device, especially the clearance between the tip lip and the web is very important.
  • Patent Document 1 and Patent Document 2 a coating die and a platform for fixing a coating die are connected by a plurality of push bolts and pull bolts, and by adjusting these push bolts and pull bolts, the tip lip and A method for adjusting the clearance with the web is disclosed.
  • Patent Document 1 JP-A-6-142588
  • Patent Document 2 JP-A-2005-270877
  • Patent Document 1 and Patent Document 2 generally adjust the clearance between the tip lip and the web by adjusting the force-pushing bolt and the pulling bolt.
  • the bolt has play etc. Because adjustment is difficult and reproducibility is poor, bolt adjustment is repeated until accidental success. Also, with such adjustment using bolts, the bolts loosen during application and the clearance changes due to the vibration of the rotating body in the application device, and the application liquid can be applied evenly. There are many practical problems such as “!!”, “!” And “!”, Or “!
  • the present invention has been made in view of the above circumstances, and provides a coating apparatus and a coating method capable of easily adjusting the position of the clearance and having little change in the clearance in the coating process. It is.
  • a first aspect of the present invention is a coating apparatus that applies a coating liquid from a tip lip of a coating die fixed to a gantry on a moving web!
  • a plurality of shims having holes or notches for penetrating bolts for joining the coating die and the gantry are arranged in the joining area of the joining surface of the gantry, and the thickness of each of the arranged shims
  • the coating apparatus is characterized in that the straightness of the tip lip of the coating die is adjusted by adjusting the thickness.
  • the application region according to the first aspect is characterized in that the joining region is convex in the direction of the coating die on the joining surface of the gantry. Device.
  • the shim has a width in a direction perpendicular to a moving direction of the web of 1.2 to 7 times the bolt diameter.
  • a fourth aspect of the present invention there are four or more shims arranged on the joint surface of the gantry, and the total force of the width in the direction perpendicular to the web moving direction of the shim used 4.
  • the coating apparatus according to any one of the first to third aspects, characterized in that the joining surface of the gantry is half or less of the total in the width direction in the direction perpendicular to the web moving direction.
  • the gantry includes a plurality of columns formed in a direction from the coating die to a fixing gantry that fixes the gantry, and all the joining regions are provided. 5.
  • the coating apparatus according to any one of the first to fourth aspects, wherein the coating apparatus is formed in a region on an end of the column.
  • a sixth aspect of the present invention is characterized in that all of the surfaces in the region serving as the other end of the column or all surfaces except both ends are in intimate contact with the fixed base.
  • a seventh aspect of the present invention is the coating apparatus according to any one of the first to sixth aspects, wherein the shim is made of SUS steel.
  • a backup roller around which a web disposed in the vicinity of the tip lip of the coating die is rotated, and on the web that is moved by the rotation of the backup roller, A coating method, wherein a coating liquid is supplied from a tip lip of the coating apparatus according to any one of the first to seventh modes.
  • the clearance can be easily adjusted, and the change in the clearance in the coating process is small, so that it can be stably and uniformly formed on the web.
  • a coating solution can be applied.
  • FIG. 1 is a cross-sectional view in a direction perpendicular to the web of a coating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a coating apparatus according to an embodiment of the present invention.
  • FIG. 3 is a sectional view in a direction parallel to the web of the coating apparatus according to the embodiment of the present invention.
  • FIG. 4 is an enlarged view of a cross section in a direction parallel to the web of a coating apparatus according to an embodiment of the present invention.
  • FIG. 5 is a cross sectional view in a direction parallel to the web of a coating apparatus according to another embodiment of the present invention.
  • FIG. 6 is a table showing test results of examples of the present invention and comparative examples.
  • FIG. 1 is a cross-sectional view taken perpendicularly to the web width direction of the coating apparatus according to the present embodiment
  • FIG. 2 is a perspective view of the coating apparatus according to the present embodiment.
  • a web 15 that continuously runs is wound around a backup roller 14, and the coating die 12 is disposed in the vicinity of the backup roller 14, Is configured such that the coating liquid 16 is applied onto the web 15.
  • the coating die 12 is joined to the gantry 11 directly or via a shim 13 made of SUS steel.
  • a hole or a notch for fixing the coating die 12 to the gantry 11 is formed in the center of the shim 13, and a screw hole for fixing the gantry 11 is formed in the coating die 12.
  • the coating die 12 is fixed to the gantry 11 with bolts 22 through the holes or notches. Further, the gantry 11 is fixed to the fixed base 23.
  • the force S using the shim 13 made of SUS steel little change over time! /, The material is highly rigid! Absent.
  • FIG. 3 is a cross-sectional view cut in parallel with the web width direction of the coating apparatus according to the present embodiment, and FIG. 4 is an enlarged view thereof. As shown in FIG.
  • the coating die 12 and the gantry 11 are joined via a plurality of shims 13.
  • adjustment is performed by inserting different shim 13 thicknesses.
  • the position where each shim 13 is installed is a position corresponding to the end face of the column 21 on the coating die 12 side for securing the strength provided in the gantry 11.
  • the column 21 provided between the fixing base 23 for fixing the base 11 and the coating die 12 to secure the strength of the base 11 on the end face of the coating die 12 side of the pillar 21 is provided.
  • a convex surface for improving the reproducibility of the contact is formed only in the end region of the substrate, and the coating die 12 is fixed to the gantry 11 through the shim 13 in this region. Since the coating die 12 is fixed on the end of the column 21 of the gantry 11, the coating die 12 The straightness of the tip lip 12a of the coating die 12 can be stably increased without the base 11 being deformed by weight or the like.
  • the surface of the other end of the column 21 of the gantry 11 is in contact with the surface of the fixed table 23 except for the columns 21 at both ends, thereby forming a contact surface 25.
  • All the force exerted by the weight of the die 12 is applied to the surface of the fixed base 23 via the column 21 of the base 11. Therefore, the straightness of the tip lip 12a of the coating die 12 does not change by configuring the fixed base 23 with a material that does not deform so that deformation of the mount 11 due to the weight of the coating die 12 is very small.
  • the gantry 11 and the fixing base 23 are fixed by four bolts in order to prevent movement due to vibration or the like. Note that all the surfaces of the other end surface of the column 21 of the gantry 11 may be brought into contact with the surface of the fixed base 23.
  • the width in the width direction of the coating die 12 of the column 21 of the gantry 11 (the width in the web width direction) is not less than 1/4 times the nominal diameter of the bolt, and 20 [ mm] or more and 100 [mm] or less is desirable. This is because, in order for the mount 11 not to be deformed, it is necessary to have a width that is at least 1.4 times the nominal diameter of the bolt and at least 20 mm.
  • the entire base 11 that forms the column 21 on the base 11 is formed in a balta shape, the weight of the base 11 becomes very heavy, and it becomes difficult to perform movement and fine adjustment.
  • the structure may be deformed by its own weight, so the structure is not suitable. Therefore, it is desirable that the column width is 1 00 [mm] or less! /.
  • the number of shims 13 to be installed is four. This is necessary. This is because if the number of shims is three or less, it is not possible to finely adjust the straightness of the tip lip 12a by the shims.
  • a force in which a notch 26 is usually provided in the gantry 11 The column 21 of the gantry 11 is supported by a structure penetrating from the coating die 12 to the fixing table 23, and therefore the contact surface 25 at the end of the column 21 A structure formed on the other side is desirable.
  • the coating method according to the present invention uses the above-described coating apparatus according to the present invention.
  • the coating liquid 16 supplied to the coating die 12 is supplied to the leading end lip 12 a of the coating die 12 through a slit formed in the coating die 12.
  • the tip lip 12a of the coating die 12 is arranged with a predetermined clearance in the vicinity of the continuously running web 15 by the backup roller 14, and the coating liquid 16 is applied to the tip lip 12a of the coating die 12 and the web 15 In between, it is applied to the web 15 while forming a kind of bead.
  • the clearance at the time of application is 3 m] or less over the entire width of the web 15, and the straightness of the tip lip 12a of the application die 12 is adjusted by the shim 13 so that it falls within this range. It has been adjusted.
  • the viscosity of the coating solution 16 to be applied is preferably in the range of 0.;! To 1000 [p] (0.01 to 100 [Pa's]), more preferably 1 to; 100 [P] (0.1 to 10 [Pa's]) is preferable.
  • the web 15 coated with the coating solution 16 is dried and calendered, and is then wound up into a roll and cured in a roll by heating or UV irradiation.
  • the cured web 15 is cut into a predetermined width to be a product such as a photographic material, a magnetic recording medium, a PS plate, or an optical functional film.
  • liquid crystal, magnetic material, photographic photosensitive agent, organic EL, dye material, adhesive material, conductive material, insulating material, etc. can be applied by the coating apparatus and coating method according to the present invention.
  • a die having a total length of 1400 mm and an effective coating width of 1250 mm was used as a coating die.
  • a stand with a total length of 1200 mm was used as the mount, and a stand was prepared with the nominal diameter and number of set bolts, the number and number of columns, etc. changed, a coating die was mounted, and the straightness of the lip tip was measured.
  • a die having a total length of 1400 mm and an effective coating width of 1250 mm was used as the coating die.
  • a gantry similar to the example was created as a gantry. However, the application die was fixed and the straightness was adjusted using push-pull bolts without using shims.
  • Table 1 shows the test results of the above examples and comparative examples.
  • indicates that the result of both linearity and straightness is good
  • ⁇ ⁇ or ⁇ indicates that either linearity or straightness is good
  • X indicates that both result in bad results.

Abstract

Intended is to homogenize stably the clearance between the tip lip of an applying die and a web. Provided is an applying apparatus for applying an application liquid to a moving web from the tip lip of the applying die fixed on a bed. The applying apparatus is characterized in that a plurality of shims fixed on the bed by bolts are arranged in that joint zone of the jointing face of the bed which is to be jointed to the applying die, so that the straightness of the tip lip of the applying die is adjusted by adjusting the individual thicknesses of the shims arranged.

Description

明 細 書  Specification
塗布装置及び塗布方法  Coating apparatus and coating method
技術分野  Technical field
[0001] 本発明は、塗布装置及び塗布方法に関するものであり、特に、写真感光乳化剤、 磁性液、視野角向上膜、反射防止膜を形成するための溶液、カラーフィルター用顔 料液、表面保護膜を形成するための溶液等の塗布液をプラスチックフィルム、紙、金 属箔等の支持体に塗布するための塗布装置及び塗布方法に関するものである。 背景技術  TECHNICAL FIELD [0001] The present invention relates to a coating apparatus and a coating method, and in particular, a photographic photosensitive emulsifier, a magnetic liquid, a viewing angle improving film, a solution for forming an antireflection film, a coloring liquid for a color filter, and a surface protection. The present invention relates to a coating apparatus and a coating method for coating a coating solution such as a solution for forming a film on a support such as a plastic film, paper, or metal foil. Background art
[0002] 移動する支持体(ウェブ等)の表面に塗布液を塗布するための方法として、ダイコ 一ティング法が知られている。近年は、ダイコーティング法により形成される膜の高性 能化等に伴い、従来よりも薄い潤滑膜厚が 20〔 111〕以下の領域で、高精度な積層 膜を形成する技術が要求されている。このような薄い膜を均一に形成するためには、 塗布装置における精度、特に、先端リップとウェブとのクリアランスが非常に重要とな  [0002] A die-coating method is known as a method for applying a coating solution to the surface of a moving support (web or the like). In recent years, with the improvement in performance of films formed by the die coating method, there has been a demand for a technique for forming a highly accurate laminated film in a region where the lubricating film thickness is 20 [111] or less. Yes. In order to form such a thin film uniformly, the accuracy of the coating device, especially the clearance between the tip lip and the web, is very important.
[0003] このクリアランスは、環境温度のみならず塗布装置の製造における影響を強く受け るものであり、塗布されるウェブ幅全体にわたり均一にする必要があることから、最終 的には微調整を行う必要がある。特許文献 1及び特許文献 2には、塗布ダイと塗布ダ ィを固定する架台とを複数の押しボルト、引きボルトで連結し、これらの押しボルト、引 きボルトを調整することにより、先端リップとウェブとのクリアランスを調整する方法が 開示されている。 [0003] This clearance is strongly influenced not only by the environmental temperature but also in the production of the coating apparatus, and it is necessary to make it uniform over the entire width of the coated web. There is a need. In Patent Document 1 and Patent Document 2, a coating die and a platform for fixing a coating die are connected by a plurality of push bolts and pull bolts, and by adjusting these push bolts and pull bolts, the tip lip and A method for adjusting the clearance with the web is disclosed.
特許文献 1 :特開平 6— 142588号公報  Patent Document 1: JP-A-6-142588
特許文献 2:特開 2005— 270877号公報  Patent Document 2: JP-A-2005-270877
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] しかしながら、特許文献 1及び特許文献 2に開示されている発明は、先端リップとゥ エブとのクリアランスの調整は可能である力 押しボルト及び引きボルトのボルトによる 調整であることから、一般にボルトは遊び等を有して!/、るため正確な位置に調整を行 うことが困難であり、調整の再現性が乏しいため、偶発的な成功になるまでボルトによ る調整を繰り返すことになる。また、このようなボルトによる調整では、塗布装置におけ る回転体等の振動を受け、塗布を行っている途中でボルトがゆるみ、クリアランスが変 化してしま!/、塗布液を均一に塗布できな!/、と!/、つた問題や、ウェブを破損すると!/、つ た問題などの実用上の問題が多い。 [0004] However, the inventions disclosed in Patent Document 1 and Patent Document 2 generally adjust the clearance between the tip lip and the web by adjusting the force-pushing bolt and the pulling bolt. The bolt has play etc. Because adjustment is difficult and reproducibility is poor, bolt adjustment is repeated until accidental success. Also, with such adjustment using bolts, the bolts loosen during application and the clearance changes due to the vibration of the rotating body in the application device, and the application liquid can be applied evenly. There are many practical problems such as “!!”, “!” And “!”, Or “!
[0005] 本発明は、上記事情に鑑みてなされたものであり、クリアランスの位置調整を容易 に行うことができ、かつ、塗布工程におけるクリアランスの変化が少ない塗布装置及 び塗布方法を提供するものである。  [0005] The present invention has been made in view of the above circumstances, and provides a coating apparatus and a coating method capable of easily adjusting the position of the clearance and having little change in the clearance in the coating process. It is.
課題を解決するための手段  Means for solving the problem
[0006] 本発明の第 1態様は、移動しているウェブ上に、架台に固定された塗布ダイの先端 リップから塗布液を塗布する塗布装置にお!/、て、前記塗布ダイと接合される架台の 接合面の接合領域に、前記塗布ダイと前記架台とを結合するためのボルトを貫通さ せるための穴または切欠きを有するシムを複数配置し、配置された前記シムの各々 の厚さを調整することにより、塗布ダイの先端リップにおける真直度を調整することを 特徴とする塗布装置である。  [0006] A first aspect of the present invention is a coating apparatus that applies a coating liquid from a tip lip of a coating die fixed to a gantry on a moving web! A plurality of shims having holes or notches for penetrating bolts for joining the coating die and the gantry are arranged in the joining area of the joining surface of the gantry, and the thickness of each of the arranged shims The coating apparatus is characterized in that the straightness of the tip lip of the coating die is adjusted by adjusting the thickness.
[0007] 本発明の第 2態様は、前記接合領域は、前記架台の接合面にお!/、て塗布ダイの方 向に凸となっていることを特徴とする第 1態様に記載の塗布装置である。  [0007] In the second aspect of the present invention, the application region according to the first aspect is characterized in that the joining region is convex in the direction of the coating die on the joining surface of the gantry. Device.
[0008] 本発明の第 3態様は、前記シムは、ウェブの移動方向に垂直な方向における幅が 、前記ボルト直径の 1. 2倍〜 7倍であることを特徴とする第 1態様または第 2態様に記 載の塗布装置である。  [0008] In a third aspect of the present invention, the shim has a width in a direction perpendicular to a moving direction of the web of 1.2 to 7 times the bolt diameter. The coating apparatus according to the second aspect.
[0009] 本発明の第 4態様は、前記架台の接合面に配置されるシムが、 4個以上であり、か つ使用される前記シムのウェブ移動方向に垂直な方向における幅の合計力 前記 架台の接合面のウェブ移動方向に垂直な方向における幅方向の合計の半分以下で あることを特徴とする第 1態様から第 3態様のいずれかに記載の塗布装置である。  [0009] In a fourth aspect of the present invention, there are four or more shims arranged on the joint surface of the gantry, and the total force of the width in the direction perpendicular to the web moving direction of the shim used 4. The coating apparatus according to any one of the first to third aspects, characterized in that the joining surface of the gantry is half or less of the total in the width direction in the direction perpendicular to the web moving direction.
[0010] 本発明の第 5態様は、前記架台は、塗布ダイから前記架台を固定する固定台に向 力、う方向に形成されている複数の柱が存在しており、前記接合領域はすべて前記柱 の端上となる領域に形成されていることを特徴とする第 1態様から第 4態様のいずれ かに記載の塗布装置である。 [0011] 本発明の第 6態様は、前記柱の他方の端となる領域における面のすべて、又は、 両端を除くすべての面が、前記固定台と密着していることを特徴とする第 1態様から 第 5態様の!/、ずれかに記載の塗布装置である。 [0010] In a fifth aspect of the present invention, the gantry includes a plurality of columns formed in a direction from the coating die to a fixing gantry that fixes the gantry, and all the joining regions are provided. 5. The coating apparatus according to any one of the first to fourth aspects, wherein the coating apparatus is formed in a region on an end of the column. [0011] A sixth aspect of the present invention is characterized in that all of the surfaces in the region serving as the other end of the column or all surfaces except both ends are in intimate contact with the fixed base. A coating apparatus according to any one of!
[0012] 本発明の第 7態様は、前記シムは、 SUS鋼により構成されていることを特徴とする 第 1態様から第 6態様のいずれかに記載の塗布装置である。  [0012] A seventh aspect of the present invention is the coating apparatus according to any one of the first to sixth aspects, wherein the shim is made of SUS steel.
[0013] 本発明の第 8態様は、前記塗布ダイの先端リップに近接して配置されたウェブを巻 きつけたバックアップローラを回転させ、前記バックアップローラの回転により移動し ている前記ウェブ上に、第 1態様から第 7態様のいずれかに記載の塗布装置の先端 リップより塗布液を供給することを特徴とする塗布方法である。  [0013] In an eighth aspect of the present invention, a backup roller around which a web disposed in the vicinity of the tip lip of the coating die is rotated, and on the web that is moved by the rotation of the backup roller, A coating method, wherein a coating liquid is supplied from a tip lip of the coating apparatus according to any one of the first to seventh modes.
発明の効果  The invention's effect
[0014] 以上より、本発明における塗布装置及び塗布方法によれば、クリアランスの調整が 容易に行うことができ、また、塗布工程におけるクリアランスの変化が少ないため、ゥ エブ上に安定的に均一に塗布液を塗布することができる。  As described above, according to the coating apparatus and the coating method of the present invention, the clearance can be easily adjusted, and the change in the clearance in the coating process is small, so that it can be stably and uniformly formed on the web. A coating solution can be applied.
図面の簡単な説明  Brief Description of Drawings
[0015] [図 1]本発明の実施の形態に係る塗布装置のウェブに垂直な方向の断面図  FIG. 1 is a cross-sectional view in a direction perpendicular to the web of a coating apparatus according to an embodiment of the present invention.
[図 2]本発明の実施の形態に係る塗布装置の斜視図  FIG. 2 is a perspective view of a coating apparatus according to an embodiment of the present invention.
[図 3]本発明の実施の形態に係る塗布装置のウェブに平行な方向の断面図  FIG. 3 is a sectional view in a direction parallel to the web of the coating apparatus according to the embodiment of the present invention.
[図 4]本発明の実施の形態に係る塗布装置のウェブに平行な方向の断面の拡大図 [図 5]本発明の別の実施の形態に係る塗布装置のウェブに平行な方向の断面図 [図 6]本発明の実施例と比較例の試験結果を示す表図  FIG. 4 is an enlarged view of a cross section in a direction parallel to the web of a coating apparatus according to an embodiment of the present invention. FIG. 5 is a cross sectional view in a direction parallel to the web of a coating apparatus according to another embodiment of the present invention. FIG. 6 is a table showing test results of examples of the present invention and comparative examples.
符号の説明  Explanation of symbols
[0016] 11 · · ·架台、 12· · ·塗布ダイ、 12a…先端リップ、 13· · ·シム、 14· · ·バックアップローラ  [0016] 11 · · · Mounting stand, 12 · · · Application die, 12a ... Tip lip, 13 · · · Shim, 14 · · · Backup roller
15…ウェブ、 16…塗布液、 21…柱、 22…ボル K 23…固定台、 25…接触面、 26 …切欠き  15 ... Web, 16 ... Coating liquid, 21 ... Pillar, 22 ... Bol K 23 ... Fixing base, 25 ... Contact surface, 26 ... Notch
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0017] 〔塗布装置〕 [0017] [Applicator]
本発明に係る塗布装置の実施の形態を図 1に基づき説明する。 [0018] 図 1は、本実施の形態における塗布装置のウェブ幅方向に垂直に切断した断面図 であり、図 2は、本実施の形態における塗布装置の斜視図である。 An embodiment of a coating apparatus according to the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view taken perpendicularly to the web width direction of the coating apparatus according to the present embodiment, and FIG. 2 is a perspective view of the coating apparatus according to the present embodiment.
[0019] 本実施の形態における塗布装置は、バックアップローラ 14に連続走行するウェブ 1 5が巻きつけられており、塗布ダイ 12は、このバックアップローラ 14に近接して配置さ れ、塗布ダイ 12からは塗布液 16がウェブ 15上に塗布される構成になっている。  In the coating apparatus in the present embodiment, a web 15 that continuously runs is wound around a backup roller 14, and the coating die 12 is disposed in the vicinity of the backup roller 14, Is configured such that the coating liquid 16 is applied onto the web 15.
[0020] 塗布ダイ 12は、直接、もしくは SUS鋼により構成されているシム 13を介し架台 11と 接合されている。シム 13の中央には、塗布ダイ 12を架台 11に固定するための穴また は切欠きが形成され、塗布ダイ 12には、架台 11を固定するためのねじ穴が形成され ている。塗布ダイ 12は、この穴または切欠きを介しボルト 22によって、架台 11に固定 されている。更に、架台 11は、固定台 23に固定されている。尚、本実施の形態では、 SUS鋼からなるシム 13を用いた力 S、経時変化の少な!/、材料であって、剛性の高!/ヽ材 料であれば、特に限定されるものではない。  [0020] The coating die 12 is joined to the gantry 11 directly or via a shim 13 made of SUS steel. A hole or a notch for fixing the coating die 12 to the gantry 11 is formed in the center of the shim 13, and a screw hole for fixing the gantry 11 is formed in the coating die 12. The coating die 12 is fixed to the gantry 11 with bolts 22 through the holes or notches. Further, the gantry 11 is fixed to the fixed base 23. In the present embodiment, the force S using the shim 13 made of SUS steel, little change over time! /, The material is highly rigid! Absent.
[0021] 塗布液 16をウェブ 15に均一に塗布するためには、前述のとおり、バックアップロー ラ 14と塗布ダイ 12の先端リップ 12aとの間隔、即ち、クリアランスが均一であることが 望ましい。このため複数のシム 13を架台 11と塗布ダイ 12の間に挿入し、各々の揷入 されるシム 13の厚さを変えることにより塗布ダイ 12の先端リップ 12aの先端の真直度 を調整し、バックアップローラ 14と塗布ダイ 12の先端リップ 12aとの間隔が均一にな るように調整するものである。具体的に図 3、図 4に基づき説明する。図 3は、本実施 の形態における塗布装置のウェブ幅方向に平行に切断した断面図であり、図 4はこ の拡大図である。図 3に示すように、塗布ダイ 12と架台 11とは複数のシム 13を介し接 合されている。塗布ダイ 12の先端リップ 12aの真直度を調整するためには、各々のシ ム 13の膜厚の異なるものを揷入することにより調整を行う。各々のシム 13の設置され る位置は、架台 11に設けられている強度確保のための柱 21の塗布ダイ 12側の端面 に相当する位置である。具体的には、架台 11を固定するための固定台 23と塗布ダイ 12との間に設けられた架台 11の強度確保のための柱 21の塗布ダイ 12側の端面に おいて、その柱 21の端の領域のみ接触の再現性を上げるための凸面が形成されて おり、この領域に、シム 13を介し架台 11に塗布ダイ 12を固定した構成のものである。 架台 11の柱 21の端上において、塗布ダイ 12が固定されているため、塗布ダイ 12の 重量等により架台 11が変形することはなぐ塗布ダイ 12の先端リップ 12aの真直度を 安定的に高めることができるものである。 In order to uniformly apply the coating liquid 16 to the web 15, it is desirable that the distance between the backup roller 14 and the tip lip 12 a of the coating die 12, that is, the clearance is uniform as described above. Therefore, a plurality of shims 13 are inserted between the base 11 and the coating die 12, and the straightness of the tip of the tip lip 12a of the coating die 12 is adjusted by changing the thickness of each inserted shim 13, The distance between the backup roller 14 and the tip lip 12a of the coating die 12 is adjusted to be uniform. This will be specifically described with reference to FIGS. FIG. 3 is a cross-sectional view cut in parallel with the web width direction of the coating apparatus according to the present embodiment, and FIG. 4 is an enlarged view thereof. As shown in FIG. 3, the coating die 12 and the gantry 11 are joined via a plurality of shims 13. In order to adjust the straightness of the tip lip 12a of the coating die 12, adjustment is performed by inserting different shim 13 thicknesses. The position where each shim 13 is installed is a position corresponding to the end face of the column 21 on the coating die 12 side for securing the strength provided in the gantry 11. Specifically, the column 21 provided between the fixing base 23 for fixing the base 11 and the coating die 12 to secure the strength of the base 11 on the end face of the coating die 12 side of the pillar 21 is provided. A convex surface for improving the reproducibility of the contact is formed only in the end region of the substrate, and the coating die 12 is fixed to the gantry 11 through the shim 13 in this region. Since the coating die 12 is fixed on the end of the column 21 of the gantry 11, the coating die 12 The straightness of the tip lip 12a of the coating die 12 can be stably increased without the base 11 being deformed by weight or the like.
[0022] 一方、図 3に示すように、架台 11の柱 21の他方の端の面は、両端の柱 21を除き固 定台 23の表面と接触し接触面 25となっているため、塗布ダイ 12の重量等の及ぼす 力はすべて、架台 11の柱 21を介し、固定台 23の表面にかかる。従って、塗布ダイ 1 2の加重による架台 11の変形は極めて少なぐ固定台 23を変形しない材料で構成 することにより、塗布ダイ 12の先端リップ 12aの真直度は変化することがない。本実施 の形態では、振動等による移動を防止するため架台 11と固定台 23とは 4本のボルト により固定されている。尚、架台 11の柱 21の他方の端の面のすべての面を固定台 2 3に表面と接触させてもよい。  On the other hand, as shown in FIG. 3, the surface of the other end of the column 21 of the gantry 11 is in contact with the surface of the fixed table 23 except for the columns 21 at both ends, thereby forming a contact surface 25. All the force exerted by the weight of the die 12 is applied to the surface of the fixed base 23 via the column 21 of the base 11. Therefore, the straightness of the tip lip 12a of the coating die 12 does not change by configuring the fixed base 23 with a material that does not deform so that deformation of the mount 11 due to the weight of the coating die 12 is very small. In the present embodiment, the gantry 11 and the fixing base 23 are fixed by four bolts in order to prevent movement due to vibration or the like. Note that all the surfaces of the other end surface of the column 21 of the gantry 11 may be brought into contact with the surface of the fixed base 23.
[0023] 以上の構成とすることにより、シム 13による調整を一旦行えば、長期間そのままの 状態で使用することが可能である。  With the above configuration, once adjustment by the shim 13 is performed, it can be used as it is for a long time.
[0024] 発明者らの検討の結果では、架台 11の柱 21の塗布ダイ 12の幅方向の幅(ウェブ 幅方向の幅)は、ボルト呼び径の 1 · 4倍以上であり、かつ 20〔mm〕以上、 100〔mm〕 以下であることが望ましい。架台 11が変形しないためには、ボルト呼び径の 1. 4倍以 上かつ 20〔mm〕以上の幅が必要であるからである。尚、架台 11に柱 21を形成するこ となぐ架台 11の全体をバルタ状に形成した場合では、架台 11の重量は非常に重い ものとなり、移動や微調整等を行う際に困難になるとともに、架台 11自身の自重によ り変形する場合があるため、構造としては適当とはいいがたい。従って、柱の幅は、 1 00 [mm]以下であることが望まし!/、。  [0024] As a result of the inventors' investigation, the width in the width direction of the coating die 12 of the column 21 of the gantry 11 (the width in the web width direction) is not less than 1/4 times the nominal diameter of the bolt, and 20 [ mm] or more and 100 [mm] or less is desirable. This is because, in order for the mount 11 not to be deformed, it is necessary to have a width that is at least 1.4 times the nominal diameter of the bolt and at least 20 mm. In addition, when the entire base 11 that forms the column 21 on the base 11 is formed in a balta shape, the weight of the base 11 becomes very heavy, and it becomes difficult to perform movement and fine adjustment. The structure may be deformed by its own weight, so the structure is not suitable. Therefore, it is desirable that the column width is 1 00 [mm] or less! /.
[0025] 更に、この柱 21の塗布ダイ 12側の端の面にシム 13を配置し塗布ダイ 12の先端リツ プ 12aの真直度の調整を行うため、設置されるシム 13の数は 4個以上必要となる。シ ムの数が 3個以下では、シムによる先端リップ 12aの真直度の微妙な調整を行うこと ができないからである。  [0025] Furthermore, since the shim 13 is arranged on the surface of the end of the column 21 on the coating die 12 side and the straightness of the tip lip 12a of the coating die 12 is adjusted, the number of shims 13 to be installed is four. This is necessary. This is because if the number of shims is three or less, it is not possible to finely adjust the straightness of the tip lip 12a by the shims.
[0026] また、通常は架台 11には切欠き 26が設けられる力 架台 11の柱 21は、塗布ダイ 1 2より固定台 23まで貫く構造で支えているため、柱 21の端の接触面 25以外の面に 形成される構成が望ましい。尚、このような切欠き 26が形成されない架台 1 1の構造も あり、この場合は、固定台 23と架台 11は広い領域において接触面 25を形成すること となる。 [0026] In addition, a force in which a notch 26 is usually provided in the gantry 11 The column 21 of the gantry 11 is supported by a structure penetrating from the coating die 12 to the fixing table 23, and therefore the contact surface 25 at the end of the column 21 A structure formed on the other side is desirable. In addition, there is a structure of the gantry 11 in which the notch 26 is not formed. In this case, the fixing pedestal 23 and the gantry 11 should form the contact surface 25 in a wide area. It becomes.
[0027] 〔塗布方法〕  [0027] [Coating method]
次に、図 1に基づき、本発明に係る塗布方法について説明する。本発明に係る塗 布方法は、前述した本発明に係る塗布装置を用いる。具体的には、塗布ダイ 12に供 給された塗布液 16は、塗布ダイ 12内に形成されたスリットを介し、塗布ダイ 12の先 端リップ 12aに供給される。塗布ダイ 12の先端リップ 12aは、バックアップローラ 14に より、連続走行しているウェブ 15に近接して所定のクリアランスで配置されており、塗 布液 16は塗布ダイ 12の先端リップ 12aとウェブ 15の間にお!/、て、一種のビードを形 成しながら、ウェブ 15に塗布される。塗布される際のクリアランスは、ウェブ 15の幅全 体にわたり、 3 m〕以下であることが望ましぐこの範囲内に収まるようにシム 13によ り塗布ダイ 12の先端リップ 12aの真直度が調整されている。  Next, the coating method according to the present invention will be described with reference to FIG. The coating method according to the present invention uses the above-described coating apparatus according to the present invention. Specifically, the coating liquid 16 supplied to the coating die 12 is supplied to the leading end lip 12 a of the coating die 12 through a slit formed in the coating die 12. The tip lip 12a of the coating die 12 is arranged with a predetermined clearance in the vicinity of the continuously running web 15 by the backup roller 14, and the coating liquid 16 is applied to the tip lip 12a of the coating die 12 and the web 15 In between, it is applied to the web 15 while forming a kind of bead. The clearance at the time of application is 3 m] or less over the entire width of the web 15, and the straightness of the tip lip 12a of the application die 12 is adjusted by the shim 13 so that it falls within this range. It has been adjusted.
[0028] 尚、塗布される塗布液 16の粘度は、 0.;!〜 1000〔p〕 (0. 01〜; 100〔Pa ' s〕)の範 囲が好ましく、より好ましくは、 1〜; 100〔P〕 (0. 1〜; 10〔Pa ' s〕)が好ましい。  [0028] The viscosity of the coating solution 16 to be applied is preferably in the range of 0.;! To 1000 [p] (0.01 to 100 [Pa's]), more preferably 1 to; 100 [P] (0.1 to 10 [Pa's]) is preferable.
[0029] 塗布液 16の塗布されたウェブ 15は、乾燥処理、カレンダー処理が施された後、一 且ロール状に巻き取られ、ロール状のまま加熱又は UV照射により硬化処理される。 硬化処理されたウェブ 15は、所定の幅に細長く裁断されて写真感光材料や磁気記 録媒体、 PS版、光学機能性フィルム等の製品となる。  [0029] The web 15 coated with the coating solution 16 is dried and calendered, and is then wound up into a roll and cured in a roll by heating or UV irradiation. The cured web 15 is cut into a predetermined width to be a product such as a photographic material, a magnetic recording medium, a PS plate, or an optical functional film.
[0030] 尚、本発明に係る塗布装置及び塗布方法により、液晶、磁性材料、写真感光剤、 有機 EL、色素材料、粘着材料、導電性材料、絶縁性材料等を塗布することができる [0030] The liquid crystal, magnetic material, photographic photosensitive agent, organic EL, dye material, adhesive material, conductive material, insulating material, etc. can be applied by the coating apparatus and coating method according to the present invention.
Yes
[0031] 以上、本発明に係る塗布装置及び塗布方法について詳細に説明したが、本発明 は、以上の例には限定されず、本発明の要旨を逸脱しない範囲において、各種の改 良や変形を行うことが可能である。  [0031] While the coating apparatus and the coating method according to the present invention have been described in detail above, the present invention is not limited to the above examples, and various improvements and modifications can be made without departing from the gist of the present invention. Can be done.
実施例  Example
[0032] 次に、本発明の実施例と比較例とを対比した試験結果を説明する。  Next, test results comparing the examples of the present invention and comparative examples will be described.
[0033] (1)実施例の塗布ダイ及び架台の条件を次のようにした。 [0033] (1) The conditions of the coating die and the gantry of the example were as follows.
[0034] (塗布ダイ) [0034] (Coating die)
塗布ダイとして全長 1400mm、有効塗布幅 1250mmのダイを用いた。 [0035] (架台) A die having a total length of 1400 mm and an effective coating width of 1250 mm was used as a coating die. [0035] (Stand)
架台として全長 1200mmのものを使用し、止めボルトの呼び径及び本数、柱の数 および本数、等を変更した架台を作成し、塗布ダイを搭載、リップ先端の真直度を測 定した。  A stand with a total length of 1200 mm was used as the mount, and a stand was prepared with the nominal diameter and number of set bolts, the number and number of columns, etc. changed, a coating die was mounted, and the straightness of the lip tip was measured.
[0036] (2)—方、比較例の塗布ダイ及び架台の条件を次のようにした。  [0036] (2)-On the other hand, the conditions of the coating die and the gantry of the comparative example were as follows.
[0037] (塗布ダイ) [0037] (Coating die)
実施例と同様に、塗布ダイとして全長 1400mm、有効塗布幅 1250mmのダイを用 いた。  As in the example, a die having a total length of 1400 mm and an effective coating width of 1250 mm was used as the coating die.
[0038] (架台) [0038] (frame)
架台として実施例と同様の架台を作成した。ただし塗布ダイの固定および真直度 調整はシムを用いずに、押し引きボルトによって行なう構造とした。  A gantry similar to the example was created as a gantry. However, the application die was fixed and the straightness was adjusted using push-pull bolts without using shims.
[0039] (3)真直度の測定等は次のように実施した。 [0039] (3) The straightness was measured as follows.
[0040] 〔真直度の測定〕 [0040] [Measurement of straightness]
真直度は塗布ダイをバックアップロールに正対させ、ダイリップ先端とバックアップ口 ールの間隔をシックネスゲージにより測定し、該間隔の最大値 最小値により求めた Straightness was determined by measuring the distance between the die lip tip and the backup roll with a thickness gauge with the coating die facing the backup roll and using the maximum and minimum values of the gap.
Yes
[0041] 〔リニアリティ〕  [0041] [Linearity]
シム又は押し引きボルトの調整量に対するリップ先端の移動量の比率をリニアリティ として定義した。例えば、シム A、 Bの厚みを tA、 tB、そのときのリップ先端の初期値 に対する移動量を dA、 dBとしたとき、リニアリティ = (dB— dA) / (tB— tA) X 100 ( The ratio of the amount of movement of the lip tip to the amount of shim or push / pull bolt adjustment was defined as linearity. For example, if the thicknesses of shims A and B are tA and tB, and the amount of movement of the lip tip relative to the initial value is dA and dB, linearity = (dB—dA) / (tB—tA) X 100 (
%)で定義される。 %).
[0042] 〔試験結果〕 [0042] [Test results]
上記の実施例と比較例との試験結果を表図 1に示した。評価は、リニアリティと真直 度の両方が良い結果のものを◎、リニアリティと真直度の何れかが良い場合を△〇、 または〇とし、両方とも悪い結果の場合を Xとした。  Table 1 shows the test results of the above examples and comparative examples. In the evaluation, ◎ indicates that the result of both linearity and straightness is good, △ ○ or ○ indicates that either linearity or straightness is good, and X indicates that both result in bad results.
[0043] 表図 1から分かるように、シムによって真直度を調整した本発明の実施例 1〜6は、 リニアリティが 65%以上で、ダイリップ先端とバックアップロールの間隔が最大でも 5.[0043] As can be seen from Table 1 in Examples 1 to 6 of the present invention in which the straightness is adjusted by shims, the linearity is 65% or more and the distance between the die lip tip and the backup roll is 5.
2 111であり、良好なリニアリティ及び真直度を得ることができた。実施例 1〜6のなか でも特に、シムのウェブの移動方向に垂直な方向における幅力 ボルト直径の 1. 2 倍〜 7倍(図表 1の「倍率」)で、かつ架台の柱本数が 4本以上である条件を満足する 実施例 1、 3、 5は◎で良い結果であった。 It was 2 111, and good linearity and straightness could be obtained. Examples 1-6 However, the width force in the direction perpendicular to the shim web movement direction is 1.2 to 7 times the bolt diameter (“Magnification” in Chart 1) and the number of columns of the mount is 4 or more. In Examples 1, 3, and 5, good results were obtained with ◎.
これに対して、押しボルトによって真直度を調整した比較例の場合には、リニアリテ ィが 55%と実施例 6よりも小さぐダイリップ先端とバックアップロールの間隔が 12· 0 mと大きく、リニアリティ及び真直度ともに悪い結果であった。  In contrast, in the comparative example in which the straightness was adjusted with a push bolt, the linearity was 55%, which was smaller than that in Example 6, and the distance between the tip of the die lip and the backup roll was as large as 12.0 m. Both straightness was bad.

Claims

請求の範囲 The scope of the claims
[1] 移動しているウェブ上に、架台に固定された塗布ダイの先端リップから塗布液を塗 布する塗布装置において、  [1] In a coating device that applies a coating solution from the tip lip of a coating die fixed to a base on a moving web.
前記塗布ダイと接合される架台の接合面の接合領域に、前記塗布ダイと前記架台 とを結合するためのボルトを貫通させるための穴または切欠きを有するシムを複数配 置し、  A plurality of shims having holes or notches for penetrating bolts for connecting the coating die and the gantry are disposed in a joining region of a joint surface of the gantry to be joined to the coating die,
配置された前記シムの各々の厚さを調整することにより、塗布ダイの先端リップにお ける真直度を調整することを特徴とする塗布装置。  A coating apparatus, wherein the straightness at the tip lip of the coating die is adjusted by adjusting the thickness of each of the arranged shims.
[2] 前記接合領域は、前記架台の接合面において塗布ダイの方向に凸となっているこ とを特徴とする請求項 1に記載の塗布装置。  [2] The coating apparatus according to [1], wherein the joining region is convex in the direction of the coating die on the joining surface of the gantry.
[3] 前記シムは、ウェブの移動方向に垂直な方向における幅力 前記ボルト直径の 1. [3] The shim has a width force in a direction perpendicular to the moving direction of the web.
2倍〜 7倍であることを特徴とする請求項 1または 2に記載の塗布装置。  The coating apparatus according to claim 1, wherein the coating apparatus is 2 to 7 times.
[4] 前記架台の接合面に配置されるシムが、 4個以上であり、かつ使用される前記シム のウェブ移動方向に垂直な方向における幅の合計力 前記架台の接合面のウェブ 移動方向に垂直な方向における幅方向の合計の半分以下であることを特徴とする請 求項 1から 3の!/、ずれかに記載の塗布装置。 [4] The total force of the width in the direction perpendicular to the web moving direction of the shim used is 4 or more shims arranged on the joining surface of the gantry in the direction of web movement of the joining surface of the gantry. 4. The applicator according to any one of claims 1 to 3, characterized in that it is less than half of the total of the width direction in the vertical direction.
[5] 前記架台は、塗布ダイから前記架台を固定する固定台に向力、う方向に形成されて[5] The gantry is formed in a direction from the coating die to a fixing gantry that fixes the gantry.
V、る複数の柱が存在しており、前記接合領域はすべて前記柱の端上となる領域に形 成されて!/、ることを特徴とする請求項 1から 4の!/、ずれかに記載の塗布装置。 A plurality of pillars V, and all of the joining regions are formed in regions that are on the ends of the pillars! /. The coating apparatus as described in.
[6] 前記柱の他方の端となる領域における面のすべて、又は、両端を除くすべての面 [6] All of the surfaces in the region which is the other end of the column, or all surfaces except both ends
1S 前記固定台と密着していることを特徴とする請求項 1から 5のいずれかに記載の 塗布装置。  1S The coating apparatus according to claim 1, wherein the coating apparatus is in close contact with the fixed base.
[7] 前記シムは、 SUS鋼により構成されていることを特徴とする請求項 1から 6のいずれ かに記載の塗布装置。  [7] The coating apparatus according to any one of [1] to [6], wherein the shim is made of SUS steel.
[8] 前記塗布ダイの先端リップに近接して配置されたウェブを巻きつけたバックアップ口 ーラを回転させ、  [8] Rotate the backup roller around which the web placed close to the tip lip of the coating die is wound,
前記バックアップローラの回転により移動している前記ウェブ上に、請求項 1から 7 のいずれかに記載の塗布装置の先端リップより塗布液を供給することを特徴とする塗 布方法。 A coating liquid is supplied from the tip lip of the coating apparatus according to any one of claims 1 to 7 onto the web that is moved by the rotation of the backup roller. Cloth method.
PCT/JP2007/068262 2006-09-26 2007-09-20 Applying apparatus, and applying method WO2008038563A1 (en)

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