WO2022130903A1 - スロットダイ - Google Patents
スロットダイ Download PDFInfo
- Publication number
- WO2022130903A1 WO2022130903A1 PCT/JP2021/042651 JP2021042651W WO2022130903A1 WO 2022130903 A1 WO2022130903 A1 WO 2022130903A1 JP 2021042651 W JP2021042651 W JP 2021042651W WO 2022130903 A1 WO2022130903 A1 WO 2022130903A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- groove
- adjusting
- width
- slot die
- block
- Prior art date
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Images
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
- B05C5/02—Apparatus 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
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0262—Coating 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
-
- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- 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
- B05C5/02—Apparatus 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This disclosure relates to slot dies.
- Slot dies are widely used to apply various fluids.
- As a method for adjusting the discharge amount of the fluid discharged from the slot die for example, the following techniques are known.
- Patent Document 1 discloses a die lip drive structure that adjusts a gap between lips by using a lever mechanism.
- the die lip drive structure applies a pressing load or a tensile load to a flexible lip portion constituting at least one of the first lip and the second lip provided on the die body, whereby the first lip and the second lip are applied. Adjust the gap with the lip.
- a concave notch is provided near the lower end of the die body along the width direction, and a flexible lip portion that can be elastically deformed with the notch as a boundary is provided. It is formed.
- the gap between the first lip and the second lip is adjusted by deforming the flexible lip portion starting from the concave notch portion.
- Patent Document 2 discloses an adjusting mechanism for adjusting the opening width of a slot opened at the tip of a tool body by adjusting the opening width of a slit formed along the longitudinal direction on the tip side of the tool body. ing.
- the adjusting mechanism adjusts the opening width of the slit by an electric driving means.
- the adjusting mechanism can be moved in the longitudinal direction by an electric moving means.
- the flexible lip portion in the vicinity of the flexible lip portion may also be deformed following the deformation of the flexible lip portion.
- the above-mentioned phenomenon hinders the fine adjustment of the gap between the first lip and the second lip, and reduces the uniformity of the thickness of the coating film in the width direction. Further, the above phenomenon may occur in the adjustment mechanism disclosed in Patent Document 2.
- One aspect of the present disclosure is to provide a slot die that improves the uniformity of the thickness of the coating film in the width direction.
- a slot die including a slit for discharging a fluid substance toward the object to be coated, the tip surface facing the object to be coated, the inner surface defining the slit, and the first extending in the width direction of the slot die.
- a block comprising a groove 1 and an outer surface having at least one second groove that intersects the first groove and extends from the first groove toward the tip surface, and the width of the first groove.
- a slot die including at least one adjusting tool, which is modified to adjust the width of the slit.
- the adjusting tool includes a screw for changing the width of the first groove.
- the adjusting device includes a pair of adjusting portions including a first adjusting portion and a second adjusting portion arranged adjacent to each other with the first groove interposed therebetween on the outer surface of the block, and the above.
- the adjusting device includes a pair of adjusting portions including a first adjusting portion and a second adjusting portion arranged adjacent to each other with the first groove interposed therebetween on the outer surface of the block, and the above.
- the screw is arranged so as to penetrate the first adjusting portion in the pair of adjusting portions and is inserted into the second adjusting portion in the pair of adjusting portions, and the screw pushes the second adjusting portion.
- the slot die according to ⁇ 1> which is pulled to change the width of the first groove.
- the first male screw portion includes the female screw portion
- the second adjustment portion includes the female screw portion
- the screw engages with the female screw portion of the first adjustment portion.
- the slot die according to ⁇ 4> which is a differential screw including a second male threaded portion that meshes with the female threaded portion of the second adjusting portion.
- the at least one adjusting tool includes a plurality of adjusting tools arranged along the first groove on the outer surface of the block, and the above-mentioned adjusting tool is provided between two adjacent adjusting tools in the plurality of adjusting tools.
- a slot die that improves the uniformity of the thickness of the coating film in the width direction is provided.
- FIG. 1 is a schematic perspective view showing a slot die according to the first embodiment of the present disclosure.
- FIG. 2 is a schematic side view of the slot die shown in FIG.
- FIG. 3 is a schematic diagram for explaining a coating method using the slot dies shown in FIGS. 1 and 2.
- FIG. 4 is a schematic side view showing a slot die according to the second embodiment of the present disclosure.
- the numerical range indicated by using "-" indicates a range including the numerical values before and after "-" as the lower limit value and the upper limit value, respectively.
- the upper limit value or the lower limit value described in one numerical range may be replaced with the upper limit value or the lower limit value of the numerical range described in another stepwise description.
- the upper limit value or the lower limit value described in a certain numerical range may be replaced with the value shown in the examples.
- the amount of each component in the composition means the total amount of the plurality of substances present in the composition when a plurality of substances corresponding to each component are present in the composition, unless otherwise specified. ..
- process is included in this term not only as an independent process but also as long as the intended purpose of the process is achieved even if it cannot be clearly distinguished from other processes. ..
- ordinal numbers are terms used to distinguish the components, and do not limit the number of components and the superiority or inferiority of the components.
- solid content means a component other than a solvent.
- FIG. 1 is a schematic perspective view showing a slot die according to the first embodiment of the present disclosure.
- FIG. 2 is a schematic side view of the slot die shown in FIG.
- Direction X and direction Y are orthogonal to each other, direction X and direction Z are orthogonal to each other, and direction Y and direction Z are orthogonal to each other.
- the direction X is parallel to the width direction of the slot die.
- the slot die 100 shown in FIGS. 1 and 2 includes a first block 10, a second block 20, and an adjusting tool 30.
- a slit 40 and a manifold 50 are formed between the first block 10 and the second block 20.
- the first block 10 defines the slit 40 and the manifold 50 together with the second block 20.
- the first block 10 faces the second block 20 and is fixed to the second block 20 by bolts (not shown).
- the first block 10 is made of stainless steel. However, the first block 10 may be formed of a material other than stainless steel. Examples of materials other than stainless steel include ceramics and cemented carbide.
- the shape of the first block 10 is a columnar shape extending in the direction X.
- the width of the first block 10 is determined, for example, according to the width of the coating film.
- the width of the first block 10 is preferably in the range of 20 mm to 400 mm.
- the width of the first block 10 may be in the range of 20 mm to 200 mm.
- the width of the first block 10 may be in the range of 50 mm to 100 mm.
- the width of the first block 10 means the distance from one end of the first block 10 to the other along the direction X.
- the first block 10 includes a tip surface 10a, an inner surface 10b, and an outer surface 10c.
- the tip surface 10a faces the object to be coated (not shown).
- the tip surface 10a is provided at the tip of the first block 10 and faces the direction Z.
- the tip surface 10a extends in the direction X.
- the inner surface 10b defines the slit 40.
- the inner surface 10b faces the direction Y.
- the inner surface 10b extends in the direction X and the direction Z.
- the outer surface 10c has a first groove 11 and a second groove 12.
- the outer surface 10c faces in the direction opposite to the direction Y. That is, the outer surface 10c is the outer surface of the slot die 100.
- the outer surface 10c extends in the direction X and the direction Z.
- the first block 10 includes a tip portion 10d partitioned by a first groove 11 and a second groove 12. As will be described later, the tip portion 10d of the first block 10 can be deformed by the adjusting tool 30 starting from the bottom portion 11a of the first groove 11.
- the number of tips 10d partitioned by one first groove 11 and two second grooves 12 is 10. However, the number of the tip portions 10d partitioned by the one first groove 11 and the two second grooves 12 is not limited to 10.
- the number of tips 10d partitioned by one first groove 11 and two second grooves 12 is the width of the first block 10, the number of adjustable tools 30 that can be installed, and the required coating film. It may be changed according to the uniformity of the thickness.
- the first groove 11 partitions the tip portion 10d of the first block 10 in the direction X and the direction Y, and improves the mobility of the tip portion 10d of the first block 10.
- the first groove 11 extends in the direction X, that is, in the width direction of the slot die 100. Specifically, the first groove 11 extends from end to end of the width of the slot die 100.
- the first groove 11 is parallel to the tip surface 10a of the first block 10, that is, the tip of the slot die 100.
- the first groove 11 When the first groove 11 is parallel to the tip of the slot die 100 in the XZ plan view of the slot die 100, the variation in the movable range of the tip portion 10d of the first block 10 is reduced, and the thickness of the coating film in the width direction is reduced. Uniformity is improved. Further, the first groove 11 extends from the outer surface 10c toward the slit 40. In FIG. 2, the shape of the bottom portion 11a of the first groove 11 is circular. Since the shape of the bottom portion 11a of the first groove 11 is circular, the mobility of the tip portion 10d of the first block 10 is improved. However, the shape of the bottom portion 11a of the first groove 11 is not limited to a circle, and may be a polygon such as a quadrangle.
- the width of the first groove 11 is preferably in the range of 0.1 mm to 20 mm, more preferably in the range of 0.5 mm to 10 mm, and particularly preferably in the range of 1 mm to 5 mm. .. As the width of the first groove 11 increases, the mobility of the tip portion 10d of the first block 10 improves. The smaller the width of the first groove 11, the higher the rigidity of the first block 10.
- the width of the first groove 11 means the shortest distance from one end of the first groove 11 to the other along the direction Z in the XZ plan view of the slot die 100.
- the depth of the first groove 11 is determined, for example, according to the thickness of the first block 10 and the mobility of the tip portion 10d of the first block 10.
- the depth of the first groove 11 is preferably in the range of 10 mm to 180 mm, more preferably in the range of 20 mm to 80 mm. As the depth of the first groove 11 increases, the mobility of the tip portion 10d of the first block 10 improves. The smaller the depth of the first groove 11, the higher the rigidity of the first block 10.
- the preferred range of the maximum depth of the first groove 11 is the same as the preferred range of the depth of the first groove 11 described above.
- the ratio of the depth of the first groove 11 to the width of the first groove 11 is preferably in the range of 2 to 20, and more preferably in the range of 5 to 15.
- the ratio of the maximum depth of the first groove 11 to the width of the first groove 11 is described above [. It is the same as the preferable range of [depth of first groove 11] / [width of first groove 11].
- the second groove 12 partitions the tip portion 10d of the first block 10 in the direction Y and the direction Z, and can reduce the influence of the deformation of one tip portion 10d on another tip portion 10d. As a result, the uniformity of the thickness of the coating film in the width direction is improved.
- the second groove 12 intersects the first groove 11 at a right angle and extends from the first groove 11 toward the tip surface 10a. That is, in the XZ plan view of the slot die 100, the angle formed by the first groove 11 and the second groove 12 is 90 °. However, the angle formed by the first groove 11 and the second groove 12 is not limited to 90 °. The angle formed by the first groove 11 and the second groove 12 may be in the range of 85 ° to 95 °.
- the angle formed by the first groove 11 and the second groove 12 may be in the range of 87 ° to 93 °.
- the angle formed by the first groove 11 and the second groove 12 may be 89 ° to 91 °.
- the controllability of the slit 40 at the tip of the slot die 100 is improved, and the uniformity of the coating film thickness in the width direction is improved. ..
- the second groove 12 extends from the outer surface 10c toward the slit 40.
- the width of the second groove 12 is preferably in the range of 0.1 mm to 20 mm, more preferably in the range of 0.5 mm to 10 mm, and particularly preferably in the range of 1 mm to 5 mm. ..
- the width of the second groove 12 increases, the distance between two adjacent tip portions 10d increases, and the influence of deformation of one tip portion 10d on another tip portion 10d is reduced. As a result, the uniformity of the thickness of the coating film in the width direction is improved.
- the width of the second groove 12 means the shortest distance from one end of the second groove 12 to the other along the direction X in the XZ plan view of the slot die 100.
- the ratio of the width of the second groove 12 to the width of the first groove portion 11 is preferably in the range of 0.2 to 5, more preferably in the range of 0.5 to 3, and 0. It is particularly preferable that it is in the range of 7. to 1.5.
- the depth of the second groove 12 is determined, for example, according to the thickness of the first block 10 and the mobility of the tip portion 10d of the first block 10.
- the depth of the second groove 12 is preferably in the range of 10 mm to 180 mm, more preferably in the range of 20 mm to 80 mm. As the depth of the second groove 12 becomes larger, the influence of the deformation of one tip portion 10d on another tip portion 10d is reduced, and the uniformity of the thickness of the coating film in the width direction is improved.
- the preferred range of the maximum depth of the second groove 12 is the same as the preferred range of the depth of the second groove 12 described above.
- the ratio of the depth of the second groove 12 to the width of the second groove 12 is preferably in the range of 2 to 20, and more preferably in the range of 5 to 15.
- the ratio of the maximum depth of the second groove 12 to the width of the second groove 12 is described above [. It is the same as the preferable range of [depth of second groove 12] / [width of second groove 12].
- the distance between the second grooves 12 is preferably in the range of 10 mm to 100 mm, more preferably in the range of 15 mm to 50 mm, and more preferably in the range of 25 mm to 50 mm. It is particularly preferably within the range of 35 mm. Further, the spacing between the second grooves 12 is preferably even. The distance between the second grooves 12 means the distance between two adjacent second grooves 12 in the XZ plan view of the slot die 100.
- the number of the second grooves 12 extending from the first groove 11 toward the tip surface 10a is 11.
- the number of the second grooves 12 is not limited to 11.
- the number of second grooves 12 may be varied depending on the width of the first block 10, the number of adjusters 30 that can be installed, and the required uniformity of coating film thickness.
- the number of the second grooves 12 increases, the number of the tip portions 10d partitioned by the first groove 11 and the second groove 12 increases, and the number of adjustment points of the width of the slit 40 at the tip of the slot die 100 increases. Becomes larger.
- the thickness of the coating film in the width direction is finely adjusted, and the uniformity of the thickness of the coating film in the width direction is improved.
- Examples of the method for manufacturing the first block 10 include forging, casting, and cutting.
- the first groove 11 and the second groove 12 may be formed in the process of forging or casting.
- the first groove 11 and the second groove 12 may be formed by cutting.
- the second block 20 defines the slit 40 and the manifold 50 together with the first block 10.
- the second block 20 faces the first block 10 and is fixed to the first block 10 by bolts (not shown).
- the second block 20 is made of stainless steel.
- the second block 20 may be formed of a material other than stainless steel. Examples of the material other than stainless steel include materials other than stainless steel exemplified in the description of the components of the first block 10.
- the second block 20 preferably contains the same components as those contained in the first block 10.
- the shape of the second block 20 is a columnar shape extending in the direction X.
- the width of the second block 20 is the same as the width of the first block 10.
- the preferred range of the width of the second block 20 is the same as the preferred range of the width of the first block 10 described above.
- Examples of the method for manufacturing the second block 20 include forging, casting, and cutting.
- the adjusting tool 30 changes the width of the first groove 11 and adjusts the width of the slit 40 at the tip of the slot die 100 by utilizing the change of the width of the first groove 11. As will be described later, the adjusting tool 30 changes the width of the first groove 11 by pushing and pulling the second adjusting portion 32 according to the rotation of the bolt 33.
- the adjusting tool 30 is arranged along the first groove 11 on the outer surface 10c of the first block 10.
- a second groove 12 is arranged between two adjacent adjusting tools 30. That is, the adjusting tool 30 and the second groove 12 are alternately arranged along the direction X, that is, the width direction of the slot die 100.
- the number of adjusting tools 30 is 10. However, the number of adjusting tools 30 is not limited to 10. The number of adjusting tools 30 may be changed according to the number of tip portions 10d of the first block 10 partitioned by the first groove 11 and the second groove 12. As the number of adjusting tools 30 increases, the thickness of the coating film in the width direction is finely adjusted. As a result, the uniformity of the thickness of the coating film in the width direction is improved.
- the adjusting tool 30 includes a first adjusting unit 31, a second adjusting unit 32, and a bolt 33.
- the first adjusting unit 31 and the second adjusting unit 32 form a pair of adjusting units.
- the first adjusting unit 31 and the second adjusting unit 32 are arranged adjacent to each other on the outer surface 10c of the first block 10 with the first groove 11 interposed therebetween.
- the second adjusting portion 32 is in contact with the tip portion 10d of the first block 10 partitioned by one first groove 11 and two second grooves 12.
- the first adjusting unit 31 and the second adjusting unit 32 are fixed to the outer surface 10c of the first block 10 by bolts (not shown). However, the first adjusting unit 31 and the second adjusting unit 32 may be fixed to the first block 10 by a fixing tool other than a bolt.
- the first adjusting unit 31 and the second adjusting unit 32 may be fixed to the first block 10 by a method other than the method using a fixative.
- the first adjusting portion 31 and the second adjusting portion 32 are made of stainless steel.
- the first adjusting portion 31 and the second adjusting portion 32 may be formed of a material other than stainless steel. Examples of the material other than stainless steel include materials other than stainless steel exemplified in the description of the components of the first block 10.
- the shape of the first adjusting portion 31 and the second adjusting portion 32 is a quadrangular prism.
- the shape of the first adjusting portion 31 and the second adjusting portion 32 may be a shape other than a quadrangular prism.
- the first adjusting portion 31 includes a female threaded portion.
- the female screw portion of the first adjusting portion 31 is formed on the inner peripheral surface that defines the screw hole of the first adjusting portion 31.
- the second adjusting portion 32 includes a female threaded portion.
- the female screw portion of the second adjusting portion 32 is formed on the inner peripheral surface that defines the screw hole of the second adjusting portion 32.
- the bolt 33 is a screw that changes the width of the first groove 11.
- the bolt 33 is a kind of differential screw, and pushes and pulls the second adjusting portion 32 by utilizing the difference in the pitch of the thread.
- the width of the first groove 11 affects the width of the slit 40 at the tip of the slot die 100.
- the bolt 33 is arranged so as to penetrate the first adjusting portion 31, and is inserted into the second adjusting portion 32. Specifically, the bolt 33 is inserted into the screw hole of the second adjusting portion 32 through the screw hole of the first adjusting portion 31.
- the bolt 33 may be arranged so as to penetrate both the first adjusting portion 31 and the second adjusting portion 32.
- the bolt 33 includes a first male threaded portion that meshes with the female threaded portion of the first adjusting portion 31, and a second male threaded portion that meshes with the female threaded portion of the second adjusting portion 32.
- the pitch of the first male thread portion is different from the pitch of the second male thread portion.
- the "pitch of the male threaded portion” means the distance between two adjacent threads of the male threaded portion.
- the absolute value of the difference between the pitch of the first male thread portion and the pitch of the second male thread portion may be 0.1 mm or more, 0.15 mm or more, or 0.2 mm or more.
- the absolute value of the difference between the pitch of the first male thread portion and the pitch of the second male thread portion is preferably in the range of 0.1 mm to 0.6 mm, preferably in the range of 0.15 mm to 0.5 mm. It is more preferable to have it, and it is particularly preferable that it is in the range of 0.2 mm to 0.4 mm.
- the outer diameter of the first male threaded portion is preferably larger than the outer diameter of the second male threaded portion.
- the bolt 33 extends in the direction Z and can rotate about a virtual straight line along the direction Z as a rotation axis. The bolt 33 can move in the direction Z or the direction opposite to the direction Z while rotating.
- the moving direction and the amount of movement of the bolt 33 are adjusted according to the rotation direction and the amount of rotation of the bolt 33.
- the force with which the bolt 33 pushes or pulls the second adjusting portion 32 changes according to the rotation direction and the amount of rotation of the bolt 33, and the width of the first groove 11 is adjusted.
- the bolt 33 is made of stainless steel.
- the bolt 33 may be formed of a material other than stainless steel. Examples of the material other than stainless steel include materials other than stainless steel exemplified in the description of the components of the first block 10.
- the slit 40 is a space for discharging a fluid substance toward the object to be coated.
- the slit 40 is defined by a first block 10 and a second block 20.
- the slit 40 extends in the direction X and the direction Z, and forms a discharge port at the tip of the slot die 100.
- the width of the slit 40 at the tip of the slot die 100 is determined, for example, according to the flow rate and viscosity of the coating liquid.
- the width of the slit 40 at the tip of the slot die 100 is preferably in the range of 0.3 mm to 0.8 mm.
- the width of the slit 40 at the tip of the slot die 100 means the distance from one end of the slit 40 to the other along the direction Y in the XY plan view of the tip of the slot die 100.
- the manifold 50 is a space for storing a fluid substance.
- the manifold 50 is defined by a first block 10 and a second block 20.
- the manifold 50 communicates with the slit 40.
- the fluid stored in the manifold 50 moves in the direction Z and is discharged through the slit 40.
- the manifold 50 extends in the direction X, that is, in the width direction of the slot die 100.
- the shape of the manifold 50 is substantially trapezoidal.
- the shape of the manifold 50 corresponds to the shape of the substantially trapezoidal recess formed in the second block 20.
- the shape of the manifold 50 may be a shape other than a substantially trapezoidal shape.
- the shape of the manifold 50 may be semi-circular.
- the shape of the manifold 50 may be circular.
- the circular manifold is defined, for example, by a combination of a semi-circular recess formed in the first block 10 and a semi-circular recess formed in the second block 20.
- a method of adjusting the width of the slit 40 at the tip of the slot die 100 will be described with reference to FIG.
- the tip portion 10d of the first block 10 partitioned by the first groove 11 and the second groove 12 can be deformed starting from the bottom portion 11a of the first groove 11.
- FIG. 2 when the force with which the bolt 33 pushes the second adjusting portion 32 increases according to the rotation of the bolt 33 (in other words, when the distance between the first adjusting portion 31 and the second adjusting portion 32 increases).
- the tip portion 10d of the first block 10 in contact with the second adjusting portion 32 is deformed counterclockwise from the bottom portion 11a of the first groove 11, and the width of the first groove 11 is increased.
- the width of the slit 40 at the tip of the slot die 100 becomes smaller.
- the force with which the bolt 33 pulls the second adjusting portion 32 increases with the rotation of the bolt 33 (in other words, when the distance between the first adjusting portion 31 and the second adjusting portion 32 becomes smaller)
- the first The tip portion 10d of the first block 10 in contact with the adjusting portion 32 of 2 is deformed clockwise from the bottom portion 11a of the first groove 11, and the width of the first groove 11 becomes smaller.
- the width of the slit 40 at the tip of the slot die 100 becomes large.
- the force applied to one tip portion 10d by the adjusting tool 30 is transmitted to the other tip portion 10d. Can be suppressed. That is, even if one tip portion 10d is deformed by the adjusting tool 30, another tip portion 10d located next to the tip portion 10d is not easily deformed.
- the plurality of adjusting tools 30 arranged along the direction X can independently adjust the width of the slit 40 at a desired point, and improve the uniformity of the thickness of the coating film in the width direction.
- FIG. 3 is a schematic diagram for explaining a coating method using the slot dies shown in FIGS. 1 and 2. According to the coating method shown in FIG. 3, a multilayer film can be obtained.
- the film F which is the object to be coated, is conveyed by a roll-to-roll method.
- a slot die 100 and a drying device 200 are provided in the middle of the transport path of the film F.
- the components of the film F include polymers and metals.
- the polymer include polyethylene terephthalate, polyethylene naphthalate and triacetyl cellulose.
- the film F may contain one kind or two or more kinds of polymers.
- the metal include iron, chromium, nickel, titanium, copper, aluminum, silver and gold.
- the metal may be an alloy. Examples of alloys include stainless steel and Invar.
- the film F may contain one kind or two or more kinds of metals.
- the film F preferably comprises a polymer and more preferably comprises at least one selected from the group consisting of polyethylene terephthalate, polyethylene naphthalate and triacetyl cellulose.
- the film F containing the polymer examples include a polyethylene terephthalate film, a polyethylene naphthalate film, and a triacetyl cellulose film.
- the film F preferably comprises a metal, more preferably comprises at least one selected from the group consisting of nickel, titanium, copper, aluminum, silver and gold, and the group consisting of copper and aluminum. It is more preferable to contain at least one selected from the above, and it is particularly preferable to contain aluminum.
- Specific examples of the film F containing a metal include a copper film and an aluminum film.
- the film F may have high thermal conductivity.
- Examples of the film F having a high thermal conductivity include a film F having a thermal conductivity of 200 W / (m ⁇ K) or more.
- the upper limit of the thermal conductivity of the film F is not limited.
- the thermal conductivity of the film F may be 500 W / (m ⁇ K) or less.
- the thermal conductivity of the film F is measured using a laser flash method. First, the film F is cut out at three locations along the width direction (specifically, a position 5 mm from both ends in the width direction and a central portion in the width direction) at a diameter of 5 mm to 10 mm to obtain three measurement samples.
- thermophysical property measuring device for example, LFA-502, Kyoto Denshi Kogyo Co., Ltd.
- the arithmetic mean of the three measured values is taken as the thermal conductivity of the film F.
- the layer structure of the film F is not limited.
- the film F may have a single-layer structure or a multi-layer structure.
- the film F is preferably a long film.
- the length of the film F is preferably 10 m or more, more preferably 100 m or more, and particularly preferably 200 m or more.
- the upper limit of the length of the film F is not limited.
- the upper limit of the length of the film F may be 1,000 m or 500 m.
- the length of the film F is usually in the range of 10 m to 1,000 m.
- the "length of the film F" means the distance from one end of the film F to the other in the transport direction of the film F.
- the width of film F is not limited. From the viewpoint of improving productivity, the width of the film F is preferably in the range of 100 mm to 2,000 mm.
- the thickness of film F is not limited. From the viewpoint of material cost, the thickness of the film F is preferably in the range of 3 ⁇ m to 50 ⁇ m, and more preferably in the range of 10 ⁇ m to 30 ⁇ m.
- the transport speed of the film F is preferably in the range of 1 m / min to 100 m / min.
- the tension of the film F is preferably in the range of 10 N / m to 500 N / m, and more preferably in the range of 50 N / m to 200 N / m.
- Tension control is performed using, for example, a known tension control device.
- Tension control may be performed using a known transfer device including a tension control mechanism.
- Examples of the transfer device including the tension control mechanism include a transfer device including a tendency drive roller.
- the tendency-driven roller is rotated by, for example, a frictional force or a magnetic force acting between a rotating shaft supporting the tendency-driven roller and the tendency-driven roller.
- the axis of rotation is rotated by, for example, a motor.
- the transport device including the tendency-driven roller can control the tension of the film according to the rotation speed of the rotating shaft, for example.
- Techniques relating to tendency-driven rollers are described, for example, in Japanese Patent No. 4066904. The contents of the above documents are incorporated herein by reference.
- the slot die 100 discharges the coating liquid toward the conveyed film F.
- the coating liquid is supplied to the slot die 100 from a container (not shown) for storing the coating liquid.
- the type of coating liquid is not limited.
- the coating liquid is preferably a water-based coating liquid.
- the "water-based coating liquid” means a coating liquid in which the solvent contained in the coating liquid is substantially water.
- the solvent contained in the coating liquid is substantially water means that water occupies most of the solvent contained in the coating liquid.
- the ratio of water to the solvent contained in the water-based coating liquid is preferably 90% by mass or more, more preferably 95% by mass or more, and particularly preferably 100% by mass.
- Examples of the water contained in the water-based coating liquid include natural water, purified water, distilled water, ion-exchanged water, pure water and ultrapure water.
- the water content in the water-based coating liquid is preferably 40% by mass or more, more preferably 50% by mass or more, based on the total mass of the water-based coating liquid.
- the water content in the water-based coating liquid is preferably less than 100% by mass, more preferably 80% by mass or less, based on the total mass of the water-based coating liquid.
- the water-based coating liquid may contain particles.
- the particles include inorganic particles, organic particles, and composite particles of an inorganic substance and an organic substance.
- Examples of the inorganic particles include metal particles, semi-metal particles, metal compound particles, semi-metal compound particles, inorganic pigment particles, mineral particles and polycrystalline diamond particles.
- Examples of the metal include alkali metals, alkaline earth metals, transition metals and alloys thereof.
- Examples of metalloids include silicon.
- Examples of metal compounds and metalloid compounds include oxides, hydroxides and nitrides.
- Examples of the inorganic pigment include carbon black. Examples of minerals include mica.
- organic particles examples include resin particles and organic pigment particles.
- the composite particles of the inorganic substance and the organic substance for example, the composite particles in which the inorganic particles are dispersed in the matrix of the organic substance, the composite particles in which the periphery of the organic particles is coated with the inorganic substance, and the periphery of the inorganic particles are the organic substances. Examples thereof include composite particles coated with.
- the particles may be surface-treated to impart dispersibility.
- Composite particles may be formed by surface treatment.
- the particle size, specific gravity and usage pattern of the particles are not limited.
- the particle size, specific gravity, and usage pattern of the particles are determined, for example, according to the coating film formed by the coating liquid and the production conditions of the coating film.
- the water-based coating liquid may contain one kind or two or more kinds of particles.
- the content of particles in the water-based coating liquid is not limited.
- the content of particles in the water-based coating liquid is determined, for example, according to the purpose of adding the particles, the coating film formed by the coating liquid, and the production conditions of the coating film.
- the components of the water-based coating liquid include a binder component, a component that contributes to the dispersibility of particles, a polymerizable compound, a polymerization initiator, and a component for enhancing coating performance (for example, a surfactant).
- the solid content concentration of the coating liquid is preferably less than 70% by mass, more preferably 30% by mass to 60% by mass.
- the thickness of the coating liquid applied to the film F (hereinafter, may be referred to as "thickness of the liquid film”) is not limited.
- the thickness of the liquid film may be in the range of 10 ⁇ m to 200 ⁇ m.
- the thickness of the liquid film may be in the range of 20 ⁇ m to 100 ⁇ m.
- the drying device 200 dries the coating liquid applied to the film F.
- a multilayer film is obtained by drying the coating liquid.
- the drying device 200 dries the coating liquid by blowing air.
- the temperature of the gas in the blast is preferably in the range of 25 ° C to 200 ° C, more preferably in the range of 30 ° C to 150 ° C.
- the wind speed in blowing air is preferably 1.5 m / sec to 50 m / sec.
- Examples of the drying device used for drying the coating liquid include an oven, a hot air blower, and an infrared heater.
- the use of the multilayer film obtained by the above method is not limited.
- FIG. 4 is a schematic side view showing a slot die according to the second embodiment of the present disclosure.
- the slot die 110 shown in FIG. 4 includes the same components as those of the slot die 100 described above, except that the adjusting device 60 is applied instead of the adjusting device 30.
- the slot die 110 will be specifically described. However, in the following description of the slot die 110, the content that overlaps with the slot die 100 is omitted.
- the arrangement of the adjusting equipment 60 is the same as the arrangement of the adjusting equipment 30 described above, and the number of the adjusting equipment 60 is the same as the number of the adjusting equipment 30 described above.
- the adjusting tool 60 includes a first adjusting unit 61, a second adjusting unit 62, and a bolt 63.
- the first adjusting portion 61 includes a female screw portion.
- the female screw portion of the first adjusting portion 61 is formed on the inner peripheral surface that defines the screw hole of the first adjusting portion 61.
- the bolt 63 is a screw that changes the width of the first groove 11.
- the bolt 63 is arranged so as to penetrate the first adjusting portion 61.
- the bolt 63 includes a male threaded portion that meshes with the female threaded portion of the first adjusting portion 61 and a tip surface that contacts the second adjusting portion 62.
- the tip surface of the bolt 63 faces the second adjusting portion 62.
- the tip surface of the bolt 63 can come into contact with the second adjusting portion 62 and apply a force to the second adjusting portion 62.
- the bolt 63 extends in the direction Z and can rotate about a virtual straight line along the direction Z as a rotation axis.
- the bolt 63 can move in the direction Z or the direction opposite to the direction Z while rotating.
- the moving direction and the amount of movement of the bolt 63 are adjusted according to the rotation direction and the amount of rotation of the bolt 63.
- the force with which the bolt 63 pushes the second adjusting portion 62 changes according to the rotation direction and the amount of rotation of the bolt 63, and the width of the first groove 11 is adjusted.
- the method of adjusting the width of the slit 40 at the tip of the slot die 110 will be described.
- the adjustment of the width of the slit 40 is carried out by bringing the tip end surface of a part or all of the bolts 63 into contact with the second adjusting portion 63.
- the tip surfaces of all the bolts 63 do not have to be in contact with the second adjusting portion 63.
- the width of the slit 40 at the tip of the slot die 110 becomes smaller.
- the tip portion 10d of the first block 10 in contact with the second adjusting portion 62 becomes the bottom portion of the first groove 11. It is deformed clockwise starting from 11a, and the width of the first groove 11 becomes smaller. As a result, the width of the slit 40 at the tip of the slot die 110 becomes large.
- the screws for changing the width of the first groove are inserted into the first adjusting portion and the second adjusting portion in this order.
- the screw for changing the width of the first groove may be inserted into the second adjusting portion and the first adjusting portion in this order. That is, an adjusting tool that is arranged so as to penetrate the second adjusting portion and includes a screw inserted in the first adjusting portion may be used.
- the screw for changing the width of the first groove is screwed into the second adjusting portion. That is, the male threaded portion of the screw that changes the width of the first groove meshes with the female threaded portion of the second adjusting portion.
- an adjusting tool including a screw that fits into the second adjusting portion and pushes and pulls the second adjusting portion by means other than screwing to the second adjusting portion may be used.
- the screw that pushes and pulls the second adjusting portion include a screw including a diameter-expanded portion that is fitted to the second adjusting portion. In the enlarged diameter portion, the outer diameter of the screw is large.
- the outer diameter of the enlarged diameter portion may increase linearly or non-linearly toward the tip of the screw.
- the second adjusting portion can be pushed and pulled by fitting the enlarged diameter portion of the screw into a space having a shape corresponding to the shape of the enlarged diameter portion of the screw provided inside the second adjusting portion.
- examples of the screw that pushes and pulls the second adjusting portion include a screw that includes a narrowed portion that fits into the second adjusting portion. In the narrowed part, the outer diameter of the screw is small.
- the second adjusting portion can be pushed and pulled by fitting the narrowed portion of the screw into a space having a shape corresponding to the shape of the narrowed portion of the screw provided inside the second adjusting portion.
- the screw that pushes and pulls the second adjusting portion preferably includes a tip surface that contacts the second adjusting portion.
- the screw for changing the width of the first groove is arranged so as to penetrate the first adjusting portion, and the tip surface of the screw is in contact with the second adjusting portion. ..
- an adjusting tool including a screw which is arranged through the second adjusting portion and includes a tip surface in contact with the first adjusting portion may be used.
- the width of the first groove is adjusted by changing the force with which the screw pushes the first adjusting portion.
- the screw that changes the width of the first groove moves the tip of the first block, which is partitioned by the first groove and the second groove, via the second adjusting portion.
- an adjusting tool that directly moves the tip of the first block partitioned by the first groove and the second groove to change the width of the first groove may be used.
- an adjusting tool for changing the width of the first groove by utilizing the rotation of the screw is used.
- an adjusting device including a member that thermally expands may be used.
- the volume of the thermally expanded member changes with temperature.
- the width of the first groove 11 is adjusted by changing the volume of the member that thermally expands according to the temperature.
- the member that thermally expands include a heat bolt. Techniques relating to heat bolts are described, for example, in JP-A-2020-15202097 and JP-A-2017-159490.
- an adjusting tool for changing the width of the first groove by hydraulic drive or electric drive may be used.
- the first block may be formed by combining a plurality of members.
- the first groove and the second groove may be formed, for example, by combining a plurality of members constituting the first block.
- the second block may also be formed by combining a plurality of members.
- Example 1 (Preparation of film AL1) As the film AL1, an aluminum film having a width of 380 mm, a thickness of 10 ⁇ m, a length of 300 m, and a thermal conductivity of 230 W / (m ⁇ K) was prepared. The film AL1 is rolled into a roll to form a roll film.
- the aqueous dispersion of Art Pearl J-7P was prepared by the following method. To 74 parts by mass of pure water, 3 parts by mass of Emarex 710 (Nippon Emulsion Co., Ltd., nonionic surfactant) and 3 parts by mass of sodium carboxymethyl cellulose (Daiichi Kogyo Seiyaku Co., Ltd.) were added. To the obtained aqueous solution, 20 parts by mass of Art Pearl J-7P (Negami Kogyo Co., Ltd., silica composite crosslinked acrylic resin fine particles) was added, and 10,000 rpm (revolutions per minute) was added using an ace homogenizer (Nissei Tokyo Office Co., Ltd.).
- a first block and a second block having the shapes as shown in FIGS. 1 and 2 were obtained.
- an adjusting instrument including components as shown in FIGS. 1 and 2 was provided on the first block.
- the bolt of the adjusting tool is a differential screw including a male threaded portion having an outer diameter of 8 mm and a pitch of 1.25 mm and a male threaded portion having an outer diameter of 10 mm and a pitch of 1.5 mm, and is a differential screw.
- the moving distance of the bolt is 0.25 mm.
- slot die width 350mm
- Slit width at the tip of the slot die 0.5 mm
- Width of first groove 4 mm
- First groove depth 30 mm
- Second groove width 4 mm
- Maximum depth of second groove 30 mm
- Second groove spacing 30 mm
- the coating liquid A was applied to the film AL1 using a manufacturing apparatus including the components as shown in FIG. 3, and then the coating liquid was dried.
- the transport speed of the film AL1 is 30 m / min.
- a multilayer film was obtained by the above procedure.
- Example 2 A multilayer film was obtained by the same procedure as in Example 1 except that the configuration of the slot die was changed according to the description in Table 1.
- Table 1 shows that the uniformity of the coating film thickness in Examples 1 and 2 is superior to the uniformity of the coating film thickness in Comparative Examples 1 and 3.
- First block 10a Tip surface 10b: Inner surface 10c: Outer surface 10d: Tip 11: First groove 11a: Bottom 12: Second groove 20: Second block 30: Adjustment device 31, 61: First Adjustment part 32, 62: Second adjustment part 33, 63: Bolt 40: Slit 50: Manifold 100, 110: Slot die 200: Drying device F: Film
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
<1> 塗布対象物に向かって流体物を吐出するスリットを含むスロットダイであって、上記塗布対象物に対向する先端面と、上記スリットを画定する内面と、スロットダイの幅方向へのびる第1の溝及び上記第1の溝に交わるとともに上記第1の溝から上記先端面に向かってのびる少なくとも1つの第2の溝を有する外面と、を含むブロックと、上記第1の溝の幅を変更して上記スリットの幅を調整する少なくとも1つの調整機具と、を含む、スロットダイ。
<2> 上記調整機具が、上記第1の溝の幅を変更するねじを含む、<1>に記載のスロットダイ。
<3> 上記調整機具が、上記ブロックの上記外面の上に上記第1の溝を挟んで隣り合って配置された第1の調整部及び第2の調整部を含む一対の調整部と、上記一対の調整部における上記第1の調整部に貫通して配置され、上記一対の調整部における上記第2の調整部に接触する先端面を含むねじと、を含み、上記ねじが、上記第2の調整部に力を加えて上記第1の溝の幅を変更する、<1>に記載のスロットダイ。
<4> 上記調整機具が、上記ブロックの上記外面の上に上記第1の溝を挟んで隣り合って配置された第1の調整部及び第2の調整部を含む一対の調整部と、上記一対の調整部における第1の調整部に貫通して配置され、上記一対の調整部における第2の調整部に挿入されたねじと、を含み、上記ねじが、上記第2の調整部を押し引きして上記第1の溝の幅を変更する、<1>に記載のスロットダイ。
<5> 上記第1の調整部が、雌ねじ部を含み、上記第2の調整部が、雌ねじ部を含み、上記ねじが、上記第1の調整部の上記雌ねじ部にかみ合う第1の雄ねじ部と、上記第2の調整部の上記雌ねじ部にかみ合う第2の雄ねじ部と、を含む差動ねじである、<4>に記載のスロットダイ。
<6> 上記少なくとも1つの調整機具が上記ブロックの上記外面の上に上記第1の溝に沿って並ぶ複数の調整機具を含み、上記複数の調整機具において隣り合う2つの調整機具の間に上記少なくとも1つの第2の溝のうちの1つの第2の溝が配置されている、<1>~<5>のいずれか1つに記載のスロットダイ。
図1及び図2を参照して、本開示の第1実施形態に係るスロットダイを説明する。図1は、本開示の第1実施形態に係るスロットダイを示す概略斜視図である。図2は、図1に示されるスロットダイの概略側面図である。方向X及び方向Yは互いに直交し、方向X及び方向Zは互いに直交し、方向Y及び方向Zは互いに直交している。方向Xは、スロットダイの幅方向に平行である。
第1のブロック10は、第2のブロック20とともにスリット40及びマニホールド50を画定する。第1のブロック10は、第2のブロック20に対向しており、ボルト(図示省略)によって第2のブロック20に固定されている。
第2のブロック20は、第1のブロック10とともにスリット40及びマニホールド50を画定する。第2のブロック20は、第1のブロック10に対向しており、ボルト(図示省略)によって第1のブロック10に固定されている。
調整機具30は、第1の溝11の幅を変更し、そして、第1の溝11の幅の変更を利用してスロットダイ100の先端におけるスリット40の幅を調整する。後述するように、調整機具30は、ボルト33の回転に応じて第2の調整部32を押し引きすることで、第1の溝11の幅を変更する。調整機具30は、第1のブロック10の外面10cの上に第1の溝11に沿って並んでいる。隣り合う2つの調整機具30の間に第2の溝12が配置されている。つまり、調整機具30及び第2の溝12は、方向X、すなわち、スロットダイ100の幅方向に沿って交互に配置されている。
スリット40は、塗布対象物に向かって流体物を吐出する空間である。スリット40は、第1のブロック10及び第2のブロック20によって画定されている。スリット40は、方向X及び方向Zへのびており、スロットダイ100の先端において吐出口を形成している。スロットダイ100の先端におけるスリット40の幅は、例えば、塗液の流量及び粘度に応じて決定される。スロットダイ100の先端におけるスリット40の幅は、0.3mm~0.8mmの範囲内であることが好ましい。スロットダイ100の先端におけるスリット40の幅とは、スロットダイ100の先端のXY平面視において、方向Yに沿ってスリット40の端から端までの距離を意味する。
マニホールド50は、流体物を貯留する空間である。マニホールド50は、第1のブロック10及び第2のブロック20によって画定されている。マニホールド50は、スリット40に連通している。マニホールド50に貯留された流体物は、方向Zへ移動し、スリット40を通じて吐出される。スロットダイ100のXZ平面視において、マニホールド50は、方向X、すなわち、スロットダイ100の幅方向へのびている。図2において、マニホールド50の形状は、略台形である。マニホールド50の形状は、第2のブロック20に形成された略台形状の凹部の形状に対応している。ただし、マニホールド50の形状は、略台形以外の形状であってもよい。マニホールド50の形状は、半円形であってもよい。マニホールド50の形状は、円形であってもよい。円形のマニホールドは、例えば、第1のブロック10に形成された半円状の凹部と第2のブロック20に形成された半円状の凹部との組み合わせによって画定される。
図2を参照して、スロットダイ100の先端におけるスリット40の幅の調整方法を説明する。第1の溝11及び第2の溝12によって区画されている第1のブロック10の先端部10dは、第1の溝11の底部11aを起点に変形できる。図2において、ボルト33の回転に応じてボルト33が第2の調整部32を押す力が大きくなると(言い換えると、第1の調整部31と第2の調整部32との間隔が大きくなると)、第2の調整部32に接する第1のブロック10の先端部10dが第1の溝11の底部11aを起点に反時計回りに変形し、第1の溝11の幅が大きくなる。この結果、スロットダイ100の先端におけるスリット40の幅は小さくなる。一方、ボルト33の回転に応じてボルト33が第2の調整部32を引く力が大きくなると(言い換えると、第1の調整部31と第2の調整部32との間隔が小さくなると)、第2の調整部32に接する第1のブロック10の先端部10dが第1の溝11の底部11aを起点に時計回りに変形し、第1の溝11の幅が小さくなる。この結果、スロットダイ100の先端におけるスリット40の幅は大きくなる。上記のような動作によって、スロットダイ100の先端におけるスリット40の幅が調整される。また、第2の溝12を挟んで隣り合う2つの先端部10dに関して、第2の溝12は、調整機具30によって一方の先端部10dに与えられた力が他方の先端部10dに伝達することを抑制できる。つまり、調整機具30によってある先端部10dが変形しても、上記先端部10dの隣に位置する別の先端部10dは変形しにくい。この結果、方向Xに沿って並んでいる複数の調整機具30は、それぞれ独立に、所望の地点でスリット40の幅を調整でき、幅方向における塗膜の厚みの均一性を向上させる。
図3を参照して、スロットダイ100を用いる塗布方法を説明する。図3は、図1及び図2に示されるスロットダイを用いる塗布方法を説明するための概略図である。図3に示される塗布方法によれば、多層フィルムが得られる。
図4を参照して、本開示の第2実施形態に係るスロットダイを説明する。図4は、本開示の第2実施形態に係るスロットダイを示す概略側面図である。図4に示されるスロットダイ110は、調整機具30にかえて調整機具60が適用されている点を除いて、既述したスロットダイ100の構成要素と同じ構成要素を含む。以下、スロットダイ110について具体的に説明する。ただし、以下のスロットダイ110に関する説明では、スロットダイ100と重複する内容は省略される。
上記した第1実施形態において、第1の溝の幅を変更するねじは、第1の調整部及び第2の調整部にこの順で挿入されている。変形例では、第1の溝の幅を変更するねじは、第2の調整部及び第1の調整部にこの順で挿入されてもよい。つまり、第2の調整部に貫通して配置されており、第1の調整部に挿入されたねじを含む調整機具が使用されてもよい。
(フィルムAL1の準備)
フィルムAL1として、380mmの幅、10μmの厚さ、300mの長さ及び230W/(m・K)の熱伝導率を有するアルミニウム製フィルムを準備した。フィルムAL1は、ロール状に巻かれてロールフィルムを形成している。
以下の成分を混合し、塗布液Aを調製した。
・ポリビニルアルコール(CKS-50、ケン化度:99モル%、重合度:300、日本合成化学工業株式会社):58質量部
・セロゲンPR(第一工業製薬株式会社):24質量部
・界面活性剤(日本エマルジョン株式会社、エマレックス710):5質量部
・アートパール(登録商標)J-7Pの水分散物:913質量部
鋳造及び削り出しによって、図1及び図2に示されるような形状を有する第1のブロック及び第2のブロックを得た。得られた第1のブロック及び第2のブロックを互いにボルトによって接続した後、第1のブロックの上に図1及び図2に示されるような構成要素を含む調整器具を設けた。調整器具のボルトは、8mmの外径及び1.25mmのピッチを有する雄ねじ部と、10mmの外径及び1.5mmのピッチを有する雄ねじ部と、を含む差動ねじであり、1回転あたりのボルトの移動距離は、0.25mmである。前者の雄ねじ部は、第2の調整部の雌ねじ部にかみ合い、後者の雄ねじ部は、第1の調整部の雌ねじ部にかみ合っている。以上の手順によってスロットダイを得た。スロットダイの寸法を以下に示す。
スロットダイの幅:350mm
スロットダイの先端におけるスリットの幅:0.5mm
第1の溝の幅:4mm
第1の溝の深さ:30mm
第2の溝の幅:4mm
第2の溝の最大深さ:30mm
第2の溝の間隔:30mm
図3に示されるような構成要素を含む製造装置を用いて、フィルムAL1に塗布液Aを塗布し、次に、塗布液を乾燥した。フィルムAL1の搬送速度は、30m/分である。以上の手順によって、多層フィルムを得た。
表1の記載に従ってスロットダイの構成を変更したこと以外は、実施例1と同様の手順によって多層フィルムを得た。
表1の記載に従ってスロットダイの構成を変更したこと以外は、実施例1と同様の手順によって多層フィルムを得た。
(幅方向における塗膜の厚みの均一性)
膜厚測定器(SI-T90、株式会社キーエンス)を用いて、多層フィルムの幅方向における塗膜の厚みを5mmおきに10か所で測定した。得られた多層フィルムの幅方向における塗膜の厚みの分布Tを算出し、以下の基準に従って評価した。評価結果を表1に示す。
A:T≦2%
B:2%<T<4%
C:4%≦T<6%
D:6%≦T
10a:先端面
10b:内面
10c:外面
10d:先端部
11:第1の溝
11a:底部
12:第2の溝
20:第2のブロック
30:調整機具
31、61:第1の調整部
32、62:第2の調整部
33、63:ボルト
40:スリット
50:マニホールド
100、110:スロットダイ
200:乾燥装置
F:フィルム
Claims (6)
- 塗布対象物に向かって流体物を吐出するスリットを含むスロットダイであって、
前記塗布対象物に対向する先端面と、前記スリットを画定する内面と、スロットダイの幅方向へのびる第1の溝及び前記第1の溝に交わるとともに前記第1の溝から前記先端面に向かってのびる少なくとも1つの第2の溝を有する外面と、を含むブロックと、
前記第1の溝の幅を変更して前記スリットの幅を調整する少なくとも1つの調整機具と、を含む、
スロットダイ。 - 前記調整機具が、前記第1の溝の幅を変更するねじを含む、請求項1に記載のスロットダイ。
- 前記調整機具が、前記ブロックの前記外面の上に前記第1の溝を挟んで隣り合って配置された第1の調整部及び第2の調整部を含む一対の調整部と、前記一対の調整部における前記第1の調整部に貫通して配置され、前記一対の調整部における前記第2の調整部に接触する先端面を含むねじと、を含み、前記ねじが、前記第2の調整部に力を加えて前記第1の溝の幅を変更する、請求項1に記載のスロットダイ。
- 前記調整機具が、前記ブロックの前記外面の上に前記第1の溝を挟んで隣り合って配置された第1の調整部及び第2の調整部を含む一対の調整部と、前記一対の調整部における前記第1の調整部に貫通して配置され、前記一対の調整部における前記第2の調整部に挿入されたねじと、を含み、前記ねじが、前記第2の調整部を押し引きして前記第1の溝の幅を変更する、請求項1に記載のスロットダイ。
- 前記第1の調整部が、雌ねじ部を含み、前記第2の調整部が、雌ねじ部を含み、前記ねじが、前記第1の調整部の前記雌ねじ部にかみ合う第1の雄ねじ部と、前記第2の調整部の前記雌ねじ部にかみ合う第2の雄ねじ部と、を含む差動ねじである、請求項4に記載のスロットダイ。
- 前記少なくとも1つの調整機具が前記ブロックの前記外面の上に前記第1の溝に沿って並ぶ複数の調整機具を含み、前記複数の調整機具において隣り合う2つの調整機具の間に前記少なくとも1つの第2の溝のうちの1つの第2の溝が配置されている、請求項1~請求項5のいずれか1項に記載のスロットダイ。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0629664U (ja) * | 1992-09-21 | 1994-04-19 | 石川島播磨重工業株式会社 | 塗工装置 |
JPH08215631A (ja) * | 1995-02-10 | 1996-08-27 | Inoue Kinzoku Kogyo Kk | 塗工装置 |
JP2000233151A (ja) * | 1998-12-16 | 2000-08-29 | Matsushita Electric Ind Co Ltd | ストライプ塗布装置及び方法 |
JP2006205031A (ja) * | 2005-01-27 | 2006-08-10 | Toppan Printing Co Ltd | スリットダイ及び塗布装置 |
JP2006289260A (ja) * | 2005-04-11 | 2006-10-26 | Toyo Knife Co Ltd | 塗布ヘッド |
JP2011194291A (ja) * | 2010-03-18 | 2011-10-06 | Johoku Seikosho:Kk | コーティングダイ |
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JP6399850B2 (ja) | 2014-08-05 | 2018-10-03 | 住友重機械モダン株式会社 | ダイリップ駆動構造 |
JP2019171292A (ja) | 2018-03-28 | 2019-10-10 | 三菱マテリアル株式会社 | 塗布工具および塗布方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH0629664U (ja) * | 1992-09-21 | 1994-04-19 | 石川島播磨重工業株式会社 | 塗工装置 |
JPH08215631A (ja) * | 1995-02-10 | 1996-08-27 | Inoue Kinzoku Kogyo Kk | 塗工装置 |
JP2000233151A (ja) * | 1998-12-16 | 2000-08-29 | Matsushita Electric Ind Co Ltd | ストライプ塗布装置及び方法 |
JP2006205031A (ja) * | 2005-01-27 | 2006-08-10 | Toppan Printing Co Ltd | スリットダイ及び塗布装置 |
JP2006289260A (ja) * | 2005-04-11 | 2006-10-26 | Toyo Knife Co Ltd | 塗布ヘッド |
JP2011194291A (ja) * | 2010-03-18 | 2011-10-06 | Johoku Seikosho:Kk | コーティングダイ |
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