TW201637729A - Coating apparatus and method for producing coating film - Google Patents
Coating apparatus and method for producing coating film Download PDFInfo
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- TW201637729A TW201637729A TW105102361A TW105102361A TW201637729A TW 201637729 A TW201637729 A TW 201637729A TW 105102361 A TW105102361 A TW 105102361A TW 105102361 A TW105102361 A TW 105102361A TW 201637729 A TW201637729 A TW 201637729A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/06—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
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- 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
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
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- 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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
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- 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
-
- 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
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- 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
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
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- 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
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
本發明是有關於塗布裝置及塗布膜之製造方法。 The present invention relates to a coating apparatus and a method of producing the coating film.
以往所使用的塗布裝置,具備了將含固化成分之塗布液塗布於片材上的塗布部與將塗布液送至該塗布部的送液部,並將塗布液塗布於片材上以形成塗布膜。因此在此類塗布裝置上,當來自塗布部之塗布液的噴出量變動時,所獲得之塗布膜的厚度會變動,塗布膜恐無法發揮所期望之性能。 The coating apparatus used in the past includes a coating unit that applies a coating liquid containing a curing component to a sheet, and a liquid supply unit that sends the coating liquid to the coating unit, and applies a coating liquid onto the sheet to form a coating. membrane. Therefore, in such a coating apparatus, when the discharge amount of the coating liquid from the coating portion fluctuates, the thickness of the obtained coating film fluctuates, and the coating film may not exhibit desired performance.
鑒於此而提案有一種塗布裝置,其構成為控制被送至塗布部之塗布液的量,控制來自塗布部之塗布液的噴出量。 In view of the above, there has been proposed a coating apparatus configured to control the amount of the coating liquid sent to the coating unit and to control the amount of the coating liquid from the coating unit.
例如,提案有一種塗布裝置(參照專利文獻1、2),其具有:送液部,將塗布液送至塗布部;測量部,裝設於送液部與塗布部之間以測量塗布液之送液量;控制部,根據測量部之測量結果以變更送液部之送液量。 For example, there is a coating apparatus (see Patent Documents 1 and 2), which has a liquid supply unit that sends a coating liquid to an application unit, and a measurement unit that is installed between the liquid supply unit and the application unit to measure a coating liquid. The liquid supply amount; the control unit changes the liquid supply amount of the liquid supply unit based on the measurement result of the measurement unit.
專利文獻1:日本專利特開2007-330935號公報 Patent Document 1: Japanese Patent Laid-Open Publication No. 2007-330935
專利文獻2:日本專利特開2011-194329號公報 Patent Document 2: Japanese Patent Laid-Open Publication No. 2011-194329
發明概要 Summary of invention
但是,上述專利文獻1、2中,雖是測量體積流量以作為塗布液之送液量,根據該體積流量之測量結果來調整塗布液之送液量(亦即體積流量),但這些專利文獻的塗布裝置,有時並無法充分獲得具有所期望厚度的塗布膜。 However, in the above-mentioned Patent Documents 1 and 2, the volumetric flow rate is measured as the liquid supply amount of the coating liquid, and the liquid supply amount (that is, the volume flow rate) of the coating liquid is adjusted based on the measurement result of the volume flow rate, but these patent documents The coating device sometimes does not sufficiently obtain a coating film having a desired thickness.
另一方面,也測量形成在片材上之塗布膜厚度,根據該測量結果以變更塗布液之送液量。但是,此種調整,在送液部中被調整之塗布液,至被反映於塗布膜之測量結果為止,會比較花費距離及時間。因此,會有無法將塗布膜之厚度變動迅速地反映在塗布液之送液量變更上的疑慮,又,還會連帶造成塗布液的浪費。 On the other hand, the thickness of the coating film formed on the sheet was also measured, and the amount of liquid to be supplied from the coating liquid was changed in accordance with the measurement result. However, in such adjustment, the coating liquid adjusted in the liquid supply portion is relatively long in distance and time until it is reflected on the measurement result of the coating film. Therefore, there is a concern that the thickness variation of the coating film cannot be quickly reflected in the change in the liquid supply amount of the coating liquid, and the coating liquid is also wasted.
本發明鑒於以上之問題,以提供一種較為迅速確實,並能在不造成浪費下抑制塗布膜之厚度變動之塗布裝置及塗布膜之製造方法為課題。 The present invention has been made in view of the above problems, and it is an object of the present invention to provide a coating apparatus and a coating method for suppressing the thickness variation of a coating film without causing waste.
本發明之發明者們針對塗布液之送液量與所形成之塗布膜厚度的關係,進行了潛心的研究。其結果,得知塗布液之體積因為可能會因塗布裝置周圍環境溫度而變 動,故當把體積流量作為送液量指標時,上述體積變動可能會造成所獲得之塗布膜的厚度變動無法被充分抑制。然後,還根據這些見解而進行了更努力的研究。結果發現,藉由將質量流量作為送液量之指標,所獲得之塗布膜的厚度變動,更能夠受到抑制,而完成了本發明。 The inventors of the present invention conducted intensive studies on the relationship between the amount of liquid to be applied to the coating liquid and the thickness of the formed coating film. As a result, it is known that the volume of the coating liquid may vary depending on the ambient temperature of the coating device. When the volume flow rate is used as the liquid supply amount index, the volume change may cause the thickness variation of the obtained coating film to be insufficiently suppressed. Then, based on these insights, more diligent research was carried out. As a result, it has been found that the thickness variation of the obtained coating film can be more suppressed by using the mass flow rate as an index of the liquid supply amount, and the present invention has been completed.
亦即,本發明之塗布裝置,是一種將含固化成分之塗布液塗布在片材上以形成塗布膜的塗布裝置,其具有:塗布部,在移動的片材上塗布前述塗布液,藉由該被塗布之塗布液被固化而形成塗布膜;送液部,將前述塗布液送至該塗布部;測量部,測量由前述送液部送至前述塗布部之前述塗布液的質量;控制部,儲存有前述質量流量之基準值,而根據該基準值與前述測量部之測量結果以變更前述送液部之前述塗布液的質量流量,前述基準值是根據以下算式(1)、(2)及(3)來決定。 That is, the coating apparatus of the present invention is a coating apparatus that applies a coating liquid containing a curing component onto a sheet to form a coating film, and has a coating portion that applies the coating liquid on the moving sheet by The applied coating liquid is solidified to form a coating film, and the liquid supply unit sends the coating liquid to the coating unit, and the measuring unit measures the mass of the coating liquid sent from the liquid feeding unit to the coating unit. And storing the reference value of the mass flow rate, and changing the mass flow rate of the coating liquid in the liquid supply unit based on the measurement result of the reference value and the measurement unit, wherein the reference value is based on the following formulas (1) and (2) And (3) to decide.
S:塗布液之質量流量的基準值(kg/min) S: Reference value of mass flow rate of coating liquid (kg/min)
W:被塗布於片材上之塗布液的寬度的設定值(m) W: setting value (m) of the width of the coating liquid applied to the sheet
U:片材對於塗布部之相對性移動速度(m/min) U: relative moving speed of the sheet to the coated portion (m/min)
t_ref:被塗布於片材上且被固化的塗布膜的厚度的設定值(m) T_ref: set value (m) of the thickness of the coating film applied to the sheet and cured
ρ_s:被塗布於片材上且被固化的塗布膜的密度(kg/m3) ρ _s: density of coated film applied to the sheet and cured (kg/m 3 )
B:塗布液中之固化成分的質量分率(-) B: mass fraction of the cured component in the coating liquid (-)
ρ_a:被塗布於片材上且被固化的塗布膜的密度的暫時設定值(kg/m3) ρ _a: Temporary set value (kg/m3) of the density of the coating film applied to the sheet and cured
t_ms:被塗布於片材上且被固化的塗布膜的厚度的測量值(m) T_ms: measured value of the thickness of the coating film applied to the sheet and cured (m)
ρ_L:塗布液之密度的測量值(kg/m3) ρ _L: Measurement of the density of the coating liquid (kg/m3)
T:被塗布時之塗布液的溫度(℃) T: temperature of the coating liquid when applied (°C)
P:被塗布時之塗布液的壓力(Pa) P: pressure of the coating liquid when applied (Pa)
Q:被塗布時之塗布液的質量流量(kg/min) Q: mass flow rate (kg/min) of the coating liquid when applied
a、b、c、d、e:係數(-) a, b, c, d, e: coefficient (-)
又,本發明之塗布膜之製造方法,是一種使用前述塗布裝置以形成塗布膜的塗布膜之製造方法,一邊藉由前述測量部,測量前述塗布液之前述質量流量,且一邊藉由前述控制部,根據前述基準值與前述測量部之測量結果變更前述送液部的前述送液速度,一邊藉由前述塗布部在前述片材上塗布前述塗布液以 形成塗布膜。 Moreover, the method for producing a coating film of the present invention is a method for producing a coating film using the coating device to form a coating film, and the mass flow rate of the coating liquid is measured by the measuring unit while being controlled by the foregoing And changing the liquid feeding speed of the liquid feeding unit by the reference value and the measurement result of the measuring unit, and applying the coating liquid to the sheet by the coating unit. A coating film is formed.
1‧‧‧塗布裝置 1‧‧‧ Coating device
3、3a、3b、3c‧‧‧塗布液 3, 3a, 3b, 3c‧‧‧ coating liquid
5‧‧‧容納部 5‧‧‧ accommodating department
7‧‧‧泵 7‧‧‧ pump
11‧‧‧片材 11‧‧‧Sheet
13‧‧‧塗布部 13‧‧‧ Coating Department
15‧‧‧配管 15‧‧‧Pipe
19‧‧‧支撐部 19‧‧‧Support
21‧‧‧測量部 21‧‧‧Measurement Department
23‧‧‧控制部 23‧‧‧Control Department
27‧‧‧固化部 27‧‧‧Cure Department
40‧‧‧塗布膜 40‧‧‧Coating film
W、W1、W2、W3‧‧‧寬度 W, W1, W2, W3‧‧‧ width
圖1為本發明之一實施形態的塗布裝置的概略構成圖。 Fig. 1 is a schematic configuration diagram of a coating apparatus according to an embodiment of the present invention.
圖2為一概略側面圖,表示由本實施形態之塗布裝置在片材上塗布塗布液的狀態之一例。 Fig. 2 is a schematic side view showing an example of a state in which a coating liquid is applied onto a sheet by the coating apparatus of the embodiment.
圖3為一概略側面圖,表示由本實施形態之塗布裝置在片材上塗布塗布液的狀態之一例。 Fig. 3 is a schematic side view showing an example of a state in which a coating liquid is applied to a sheet by the coating device of the embodiment.
圖4為一概略側面圖,表示由本實施形態之塗布裝置在片材上塗布塗布液的狀態之一例。 Fig. 4 is a schematic side view showing an example of a state in which a coating liquid is applied onto a sheet by the coating apparatus of the embodiment.
圖5為被使用於實施例之預備實驗中的裝置的概略構成圖。 Fig. 5 is a schematic configuration diagram of an apparatus used in a preliminary experiment of the embodiment.
以下邊參照圖式邊針對本發明之塗布裝置、使用了該塗布裝置之塗布膜的製造方法的實施形態來加以說明。 Hereinafter, an embodiment of a coating apparatus of the present invention and a method for producing a coating film using the coating apparatus will be described with reference to the drawings.
如圖1所示,本實施形態之塗布裝置1包含有以下部位:容納部5,容納含固化成分之塗布液3;泵7,作為將塗布液3從該容納部5送到下游側之送液部;塗布部13,將藉由泵7送來之塗布液3沿長邊方向在下游側(參照實線箭頭符號)於對塗布部13相對移動之帶狀片材11上依序塗布以形成塗布膜40;測量部21,配置於泵7與塗布部13之間,測量藉由泵7被送往塗布部13之塗布液3的質量流量;控制 部23,儲存有質量流量之基準值S,根據該基準值S與測量部21的測量結果D,對泵7變更質量流量;配管15,形成塗布液3之移動路線;支撐部19,支撐片材11。又,塗布裝置1具備有固化部27,使被塗布於片材11上之塗布液3固化。 As shown in Fig. 1, the coating apparatus 1 of the present embodiment includes a housing portion 5 that accommodates a coating liquid 3 containing a curing component, and a pump 7 that sends the coating liquid 3 from the housing portion 5 to the downstream side. The coating unit 13 sequentially coats the coating liquid 3 sent by the pump 7 on the downstream side (refer to the solid arrow symbol) on the strip-shaped sheet 11 that relatively moves the coating portion 13 in the longitudinal direction. The coating film 40 is formed; the measuring unit 21 is disposed between the pump 7 and the coating unit 13, and measures the mass flow rate of the coating liquid 3 sent to the coating unit 13 by the pump 7; The portion 23 stores the reference value S of the mass flow rate, and changes the mass flow rate to the pump 7 based on the reference value S and the measurement result D of the measuring unit 21; the pipe 15 forms a movement route of the coating liquid 3; the support portion 19, the support piece Material 11. Further, the coating device 1 includes a curing portion 27 for curing the coating liquid 3 applied to the sheet 11.
前述塗布液3含有固化成分,其被塗布於片材11,而在該片材11上被固化。作為此種塗布液3,可舉聚合物溶液為例,而作為上述固化成分來使用之材料,可舉熱硬化性材料、紫外線硬化性材料、電子束硬化性材料等。 The coating liquid 3 contains a curing component which is applied to the sheet 11 and is cured on the sheet 11. The coating liquid 3 is exemplified by a polymer solution, and examples of the material used as the curing component include a thermosetting material, an ultraviolet curable material, and an electron beam curable material.
又,作為片材11可舉樹脂薄膜為例。圖1中,片材11雖顯示為具可撓性之長條狀態樣,但其他亦可採用單板狀態樣或具非可撓性之態樣。 Moreover, the sheet 11 is exemplified as a resin film. In Fig. 1, although the sheet 11 is shown as a flexible strip, other sheets may be in a state of a single sheet or in a non-flexible state.
容納部5是容納用以塗布於片材11上之塗布液3。而作為此類容納部5可舉金屬製的筒槽等為例。 The accommodating portion 5 is a coating liquid 3 that is accommodated for application to the sheet 11. As such a housing portion 5, a metal cylinder or the like can be exemplified.
泵7是將被容納於容納部5中之塗布液3從下游側送到塗布部13。而作為此類泵7可舉齒輪泵、隔膜泵、柱塞泵、蛇形泵等以往習知的泵為例。再者,此處是以泵7與配管15來構成送液部。 The pump 7 sends the coating liquid 3 accommodated in the accommodating portion 5 from the downstream side to the coating portion 13. As such a pump 7, a conventional pump such as a gear pump, a diaphragm pump, a plunger pump, or a serpentine pump can be exemplified. Here, the pump 7 and the pipe 15 constitute a liquid supply portion.
塗布部13是將從泵7輸送之塗布液3,依序塗布於例如一邊被滾筒等支撐部19支撐一邊對於該塗布部13而往下游側相對移動之帶狀片材11上。而作為此類塗布部13可舉模具塗布機等為例。 The coating unit 13 is applied to the belt-shaped sheet 11 which is relatively moved to the downstream side of the coating unit 13 while being supported by the support portion 19 such as a roller, in the coating liquid 3. As such a coating portion 13, a die coater or the like can be exemplified.
配管15在容納部5與泵7之間,以及泵7與塗布部13之間各自連接,從容納部5透過泵7,而形成使塗布液3往塗布部13移動的路線。 The pipe 15 is connected between the accommodating portion 5 and the pump 7, and between the pump 7 and the coating portion 13, and passes through the pump 7 from the accommodating portion 5 to form a path for moving the coating liquid 3 to the coating portion 13.
作為以上配管15,可舉金屬材料、混合樹脂與金屬之複合材料,或使用樹脂材料等而形成管狀的管子等。 The above-described pipe 15 may be a metal material, a composite material of a mixed resin and a metal, or a tubular pipe or the like using a resin material or the like.
支撐部19是將在長邊方向上移動之片材11從塗布部13的相反側支撐者。而作為此類支撐部19可舉滾筒等。 The support portion 19 supports the sheet 11 that moves in the longitudinal direction from the opposite side of the application portion 13. As such a support portion 19, a roller or the like can be mentioned.
測量部21是測量藉由泵7而被送到塗布部13之塗布液3的質量流量。而此類測量部21是在泵7與塗布部13之間而被配置於配管15。此類測量部21測量塗布液3之質量流量,將測量結果D作為電子資料傳送至控制部23。又,測量部21可測量塗布液3之密度、溫度、壓力。 The measuring unit 21 measures the mass flow rate of the coating liquid 3 sent to the coating unit 13 by the pump 7. The measuring unit 21 is disposed between the pump 7 and the application unit 13 and is disposed in the pipe 15. The measuring unit 21 measures the mass flow rate of the coating liquid 3, and transmits the measurement result D to the control unit 23 as electronic data. Further, the measuring unit 21 can measure the density, temperature, and pressure of the coating liquid 3.
作為此種測量部21,可舉具流量計與壓力計者為例。該流量計雖並無特定限制,但可舉可測量塗布液3之質量流量、密度及溫度的流量計等為例。又,壓力計只要能測量塗布液3之壓力即可,並無特定限制。再者,測量部21也可備有可測量每一測量對象之測量器。 As such a measuring unit 21, a flow meter and a pressure gauge can be cited as an example. Although the flowmeter is not particularly limited, a flowmeter that can measure the mass flow rate, density, and temperature of the coating liquid 3 can be exemplified. Further, the pressure gauge is not particularly limited as long as it can measure the pressure of the coating liquid 3. Furthermore, the measuring unit 21 may be provided with a measurer that can measure each measurement object.
控制部23是將塗布液3之質量流量的基準值S以電子資料之形式儲存,接收從測量部21傳送過來之作為電子資料的測量結果D,根據基準值S與測量結果D,變更泵7之塗布液3的送液量(亦即質量流量)。 The control unit 23 stores the reference value S of the mass flow rate of the coating liquid 3 as electronic data, receives the measurement result D as electronic data transmitted from the measurement unit 21, and changes the pump 7 based on the reference value S and the measurement result D. The liquid supply amount of the coating liquid 3 (that is, the mass flow rate).
具體而言,控制部23具備了將接收之測量結果D與基準值S比較,當測量結果D比基準值S大時,即減少泵7之送液量(亦即質量流量),當測量結果D比基準值S小時,即增加泵7之送液量(亦即質量流量)的功能。 Specifically, the control unit 23 includes comparing the received measurement result D with the reference value S, and when the measurement result D is larger than the reference value S, the amount of liquid supplied from the pump 7 (that is, the mass flow rate) is reduced, and the measurement result is obtained. D is smaller than the reference value S, that is, a function of increasing the amount of liquid supplied from the pump 7 (i.e., mass flow rate).
又,其還具備有接收塗布液3的質量流量、密度、溫度及壓力,使用預先設定之a、b、c、d、e,以算式(3)算出B, 再使用此B與預先設定之ρ_s,以算式(1)決定基準值S的功能。 Further, it is further provided with a mass flow rate, a density, a temperature, and a pressure for receiving the coating liquid 3, and B is calculated by the formula (3) using a predetermined a, b, c, d, and e, and the B and the preset are used. ρ _s, the function of the reference value S is determined by the equation (1).
固化部27是使塗布液3固化的裝置。該固化部27視塗布液3種類而被適當地設定,可舉熱風式或紅外線(IR)照射式之乾燥裝置、紫外線(UV)照射裝置或電子束(EB)照射裝置等為例。具體而言,若塗布液3具有藉由加熱來硬化的材料時,可舉上述之加熱裝置,若塗布液3具有藉由紫外線照射來硬化的材料時,可舉紫外線照射裝置,若塗布液3具有藉由電子束來硬化的材料時,可舉上述電子束照射裝置。再者,本發明中,也可視塗布液3種類而採用塗布裝置不具固化部的構成。 The curing portion 27 is a device that cures the coating liquid 3. The curing unit 27 is appropriately set depending on the type of the coating liquid 3, and examples thereof include a hot air type or an infrared (IR) irradiation type drying apparatus, an ultraviolet (UV) irradiation apparatus, and an electron beam (EB) irradiation apparatus. Specifically, when the coating liquid 3 has a material which is cured by heating, the heating device described above may be mentioned. When the coating liquid 3 has a material which is cured by ultraviolet irradiation, an ultraviolet irradiation device may be used, and if the coating liquid 3 When the material is hardened by an electron beam, the above electron beam irradiation apparatus can be mentioned. Further, in the present invention, a configuration in which the coating device does not have a curing portion may be employed depending on the type of the coating liquid 3.
本實施型態中,基準值S是根據被塗布於片材11上之塗布液3的固化成分的質量分率來決定。 In the present embodiment, the reference value S is determined based on the mass fraction of the curing component of the coating liquid 3 applied to the sheet 11.
像這樣,藉由基準值S根據被塗布於片材11上之塗布液3的固化成分的質量分率來決定,根據與塗布膜40之厚度有相關關係的塗布液3固化成分的質量分率,來設定基準值S。因此,可以更為適切地調整質量流量。 As described above, the reference value S is determined based on the mass fraction of the cured component of the coating liquid 3 applied to the sheet 11, and the mass fraction of the curing component of the coating liquid 3 in accordance with the thickness of the coating film 40 is determined. , to set the reference value S. Therefore, the mass flow rate can be adjusted more appropriately.
具體而言,基準值S是根據下述算式(1)、(2)及(3)來決定。 Specifically, the reference value S is determined according to the following formulas (1), (2), and (3).
B=a×ρ_L+b×T+c×P+d×Q+e…(3) B=a×ρ_L+b×T+c×P+d×Q+e...(3)
上述S是質量流量的基準值,是由上述算式(1)所計算出的值。 The above S is a reference value of the mass flow rate and is a value calculated by the above formula (1).
在上述算式(1)中,上述W為被塗布於片材11上之塗布液3寬度W的設定值,相當於塗布膜40的寬度。該W可以視所獲得之塗布膜40的種類而被預先做適當地設定。 In the above formula (1), the above W is a set value of the width W of the coating liquid 3 applied to the sheet 11, and corresponds to the width of the coating film 40. This W can be appropriately set in advance depending on the type of the coating film 40 obtained.
再者,片材11上之塗布液3的形狀(亦即塗布膜40的形狀)並無特定限制。又,片材11上之塗布液3,例如可作為在片材11的移動方向上連續的1種塗布液3被塗布,也可作為間歇之複數種塗布液3被塗布。再者,片材11上之塗布液3,例如可作為在片材11寬邊方向(與移動方向垂直的方向)上連續的1種塗布液3被塗布,也可作為間歇之複數種塗布液3被塗布。 Further, the shape of the coating liquid 3 on the sheet 11 (that is, the shape of the coating film 40) is not particularly limited. Further, the coating liquid 3 on the sheet 11 may be applied as one type of coating liquid 3 continuous in the moving direction of the sheet 11, or may be applied as a plurality of coating liquids 3 in a batch. In addition, the coating liquid 3 on the sheet 11 can be applied as one type of coating liquid 3 continuous in the width direction of the sheet 11 (direction perpendicular to the moving direction), or can be used as a plurality of coating liquids intermittently. 3 is coated.
而此類塗布液3的寬度W,例如在寬邊方向上於片材11上被塗布1種塗布液3,且如圖2所示,該塗布液3之寬度比片材11窄時,寬度W為該塗布液3之寬度,若如圖3所示,該塗布液3之寬度與片材11之寬度相同時,則寬度W為片材11的寬度。又,如圖4所示,若在寬邊方向上,複數的塗布液3在片材11上互相保持間隔塗布時,被塗布於片材11上之塗布液3的寬度為各塗布液3之寬度的合計,例如在寬邊方向上保持間隔塗布3種塗布液3時,被塗布於片材11上之塗布液3的寬度為3種塗布液3a、3b、3c之寬度W1、W2、W3的合計(W=W1+W2+W3)。 On the other hand, the width W of the coating liquid 3 is applied to the sheet 11 in the width direction, for example, and the width of the coating liquid 3 is narrower than that of the sheet 11, as shown in FIG. W is the width of the coating liquid 3, and as shown in Fig. 3, when the width of the coating liquid 3 is the same as the width of the sheet 11, the width W is the width of the sheet 11. Further, as shown in FIG. 4, when a plurality of coating liquids 3 are applied to each other on the sheet 11 in the width direction, the width of the coating liquid 3 applied to the sheet 11 is the coating liquid 3 In the total width, for example, when three kinds of coating liquids 3 are applied at intervals in the width direction, the width of the coating liquid 3 applied to the sheet 11 is the widths W1, W2, and W3 of the three coating liquids 3a, 3b, and 3c. Total (W=W1+W2+W3).
上述的U為片材11相對於塗布部13之相對性移 動速度。又,該U可視所獲得之塗布膜40的種類等而被預先適當地設定。 The above U is the relative shift of the sheet 11 with respect to the coating portion 13. Dynamic speed. Moreover, the type of the coating film 40 obtained by the U can be appropriately set in advance.
上述t_ref是被塗布於片材11上,被固化而獲得之塗布膜40的厚度的設定值,該t_ref可視塗布膜40的種類等而被預先適當地設定。 The above-described t_ref is a set value of the thickness of the coating film 40 which is applied to the sheet 11 and is cured, and the t_ref is appropriately set in advance depending on the type of the coating film 40 and the like.
上述B為塗布液3中之固化成分的質量分率。該B由算式(3)決定,可視塗布液3的種類等而被預先適當地設定,且可在塗布中被變更。 The above B is the mass fraction of the curing component in the coating liquid 3. This B is determined by the formula (3), and is appropriately set in advance depending on the type of the coating liquid 3 and the like, and can be changed during coating.
上述ρ_s是被塗布於片材11上,被固化之塗布膜40的密度,是由上述算式(2)所計算出的值。 The above ρ s is the density of the coating film 40 applied to the sheet 11 and cured, and is a value calculated by the above formula (2).
在上述算式(2)中,前述ρ_a是被塗布於片材11上,被固化之塗布膜40的密度之暫時設定值,該ρ_a可視塗布液3的種類等而被預先作適當地設定。 In the above equation (2), the ρ _a is coated on the sheet 11, the temporary setpoint density is cured the coating film 40, the ρ _a visible coating solution for the kind of 3 and is previously appropriately set .
上述t_ms是被塗布於片材11上,被固化之塗布膜40的厚度測量值。該t_ms,是在預備實驗等中將上述算式(1)中的ρ_s設定為上述該密度之暫時設定值ρ_a,而以此條件在片材11上塗布了塗布液3時,測量固化之塗布膜40的厚度所獲得的值。 The above t_ms is a thickness measurement value of the applied coating film 40 applied to the sheet 11. In the preliminary experiment, the ρ s in the above formula (1) is set to the temporary set value ρ _ a of the density, and when the coating liquid 3 is applied onto the sheet 11 under this condition, the curing is measured. The value obtained by coating the thickness of the film 40.
基準值S,因其根據上述算式(1)及(2)來決定,當塗布液3的種類相同時,因即使改變W、U、t_ref、B,亦可使用相同的ρ_s,故具有只需1次預備實驗即可的優點。 The reference value S is determined according to the above formulas (1) and (2). When the types of the coating liquid 3 are the same, even if W, U, t_ref, and B are changed, the same ρ s can be used, so that only the same ρ s is used. The advantage of needing one preliminary experiment.
上述基準值S可由以下方式獲得。亦即,在預備實驗等中,將塗布膜40之密度值設定為暫時設定值ρ_a,厚度設定為設定值t_ref,寬度設定為W,移動速度設定為 U,且如後述般獲得上述B,從上述算式(1)求暫時基準值S’,將塗布液3塗布於片材11上,而獲得固化之塗布膜。測量所獲得之塗布膜厚度,得到t_ms。然後,由上述算式(2)自t_ref、ρ_a、t_ms得到ρ_s。 The above reference value S can be obtained in the following manner. That is, in the preliminary experiment and the like, the coating film density set 40. temporarily set value ρ _a, thickness is set to a set value t_ref in, width is set to W, the moving speed is set as U, and as will be described later as obtained above B, The temporary reference value S' is obtained from the above formula (1), and the coating liquid 3 is applied onto the sheet 11 to obtain a cured coating film. The thickness of the obtained coating film was measured to obtain t_ms. Then, ρ _s is obtained from t_ref, ρ _a, and t_ms by the above formula (2).
然後,由上述算式(1)而從W、U、t_ref、ρ_s及B決定基準值S。 Then, from the W, U, t_ref, ρ _s and B are determined by the equation (1) reference value S.
又,上述B是由上述算式(3)來決定。 Further, the above B is determined by the above formula (3).
在上述算式(3)中,上述ρ_L為塗布液3的密度測量值。 In the above equation (3), the above coating liquid density ρ _L of 3 measurements.
上述T為塗布時之塗布液3的溫度測量值。 The above T is a temperature measurement value of the coating liquid 3 at the time of coating.
上述P為塗布時之塗布液3的壓力(Pa)。更具體來說,是自泵7將塗布液3供給到塗布部13,從塗布部13塗布時由測量部21測量之值。再者,從此類測量部21測量可知,壓力為在片材11上塗布前之塗布液3的壓力。 The above P is the pressure (Pa) of the coating liquid 3 at the time of coating. More specifically, it is a value measured by the measuring unit 21 when the coating liquid 3 is supplied from the pump 7 to the coating unit 13 and applied from the coating unit 13. Further, as measured from such a measuring unit 21, the pressure is the pressure of the coating liquid 3 before coating on the sheet 11.
上述Q為質量流量之測量值(kg/min),是自泵7將塗布液3供給至塗布部13,並由塗布部13塗布時以測量部21測量之值。 The Q is a measured value (kg/min) of the mass flow rate, and is a value measured by the measuring unit 21 when the coating liquid 3 is supplied from the pump 7 to the coating unit 13 and applied by the coating unit 13.
上述a、b、c、d及e為係數,視塗布液3之種類而預先被適當地設定而獲得。 The above a, b, c, d, and e are coefficients, and are obtained by appropriately setting in advance depending on the type of the coating liquid 3.
作為上述B,藉由使用根據上述算式(3)而決定之值,即使是在求出上述暫時基準值S’而得到ρ_s的實驗(預備實驗),與進行基準值S的決定(計算)之實驗(基準值S的計算實驗)之間B變更時,僅將該B做設定變更即可,不需要變更其他參數。藉此,有可簡易地決定基準值S之優點。 As the B, by using the values based on the decision equation (3), even in obtaining the temporary reference value S 'obtained in the experiment ρ _s (preliminary test), which decides the reference value S (calculated) When B is changed between the experiment (calculation experiment of the reference value S), it is only necessary to change the B setting, and it is not necessary to change other parameters. Thereby, there is an advantage that the reference value S can be easily determined.
又,決定基準值S後,就算使用已決定之基準值S而在 片材11上塗布塗布液3時B有所變動,但因為可因應該變動再度算出基準值S,故能更精密地進行塗布液3的塗布。 Further, after the reference value S is determined, even if the determined reference value S is used, When the coating liquid 3 is applied to the sheet 11, B is changed. However, since the reference value S can be calculated again due to the fluctuation, the application of the coating liquid 3 can be performed more precisely.
具體而言,在根據上述算式(3)而決定B之際,由事前之預備實驗等而先取得數組B、ρ_L、T、P、Q的資料,藉由反向計算B、ρ_L、T、P、Q,而算出係數a、b、c、d及e。 Specifically, in (3) is determined from the above expression B on the occasion, and the first array element B, ρ _L, T, P , Q data of the preliminary experiment and the like in advance, by reverse calculation B, ρ _L, The coefficients a, b, c, d, and e are calculated for T, P, and Q.
例如由以下方式來算出a、b、c、d及e。亦即,準備雖然塗布液3之種類相同,但塗布液3中之固化成分的質量分率B’互異之複數種塗布液3。此質量分率B’可由以下算式(4)或(5)算出。 For example, a, b, c, d, and e are calculated in the following manner. In other words, a plurality of coating liquids 3 having different mass fractions B' of the curing components in the coating liquid 3 are prepared, although the types of the coating liquid 3 are the same. This mass fraction B' can be calculated by the following formula (4) or (5).
亦即,根據上述算式(4)決定上述B’時,由上述塗布液3的組成算出上述B’。 In other words, when B' is determined according to the above formula (4), the above B' is calculated from the composition of the coating liquid 3.
另一方面,根據上述算式(5)確定上述B’時,例如在片材11上塗布了塗布液3後,測量被固化前之質量(固化前的質量)與該塗布液3被固化後的質量(固化後的質量),根據所獲得之固化前的質量與固化後的質量,算出上述B’。再者,上述B’是根據上述算式(5)而被決定時,塗布塗布液3的對象並不特別限定於上述帶狀片材11。而作為此類對象,其他可舉鋁杯、玻璃板、片材11的切斷片等為例。 On the other hand, when the above B' is determined according to the above formula (5), for example, after the coating liquid 3 is applied onto the sheet 11, the mass before curing (the mass before curing) and the liquid after the coating liquid 3 are cured are measured. The mass (the mass after curing) was calculated from the mass before curing and the mass after curing. In addition, when B' is determined according to the above formula (5), the object to which the coating liquid 3 is applied is not particularly limited to the above-mentioned belt-shaped sheet 11. Further, as such an object, an aluminum cup, a glass plate, a cut piece of the sheet 11, and the like can be exemplified.
這些固化前的質量與固化後的質量,是例如以電子天平等各自測量之值。 The mass before curing and the quality after curing are, for example, values measured by each of electrons.
又,質量分率B’不同之塗布液3的數量雖並無特定限制,但例如可使用不同之3階段之質量分率的塗布液。就該複數種塗布液3之各塗布液3,一邊變更溫度T、壓力P、質量流量Q一邊測量密度ρ_L。 Further, although the number of the coating liquids 3 having different mass fractions B' is not particularly limited, for example, a coating liquid having a different mass fraction of three stages can be used. In respect of each of a plurality of kinds of coating liquids was coating 3, while changing the temperature T 3 is, pressure P, the mass flow rate Q while measuring the density ρ _L.
又,本實施型態中,是由測量部21來測量密度ρ_L、溫度T、壓力P、質量流量Q,作為此種測量部21,可舉具備壓力計、可測量密度、溫度及質量流量的流量計者為例。作為此種壓力計,可舉Valcom公司製的壓力計(VFM-A6)為例,作為流量計可舉Endress Hauser公司製的Coriolis式流量計(Promass 80F)為例。 Further, in this embodiment type, the measurement unit 21 is measured by the density ρ _L, temperature T, the pressure P, the mass flow rate Q, such as a measuring section 21, it may be provided with a pressure gauge cited, measure the density, temperature and mass flow rate The flow meter is an example. As such a pressure gauge, a pressure gauge (VFM-A6) manufactured by Valcom Co., Ltd. is taken as an example, and a Coriolis-type flowmeter (Promass 80F) manufactured by Endress Hauser Co., Ltd. is taken as an example.
然後,將所獲得之密度ρ_L、溫度T、壓力P、及質量流量Q、質量分率B’代入上述算式(3),例如使用最小二乘法來算出係數a、b、c、d及e。 Then, the obtained the density ρ _L, temperature T, the pressure P, the and the mass flow rate Q, the mass fraction of B 'are substituted into the above expression (3), for example, using the least squares method to calculate the coefficients a, b, c, d and e .
然後,將計算出之a、b、c、d及e與測量出之塗布液3的密度ρ_L、測量出之塗布液3的溫度T、測量出之塗布液3的壓力P與測量出之塗布液3的質量流量Q代入上述算式(3),藉此算出實際於片材11上塗布塗布液3之際的上述B。又,在片材11上塗布塗布液3時,算出上述B。 Then, the density calculated of a, b, c, d and e and the coating liquid measured of 3 ρ _L, measured of the coating solution temperature T 3 is measured out of the coating liquid. The pressure P and measured the The mass flow rate Q of the coating liquid 3 is substituted into the above formula (3), thereby calculating the above-described B when the coating liquid 3 is actually applied to the sheet 11. Moreover, when the coating liquid 3 was applied to the sheet 11, the above B was calculated.
上述B因為是藉由根據上述算式(3)來決定,並一邊在片材11上塗布塗布液3,一邊即時決定上述B,故可更高精度且更適當地決定上述B。 Since B is determined in accordance with the above formula (3), and the coating liquid 3 is applied to the sheet 11, the B is immediately determined, so that the above B can be determined with higher precision and more appropriate.
又,藉由在上述密度ρ_L及溫度T之外,又根據上述質 量流量Q及上述壓力P來算出上述B,相較於根據上述密度ρ_L及溫度T來算出上述B時,更能高精度且適當地決定上述B。 And, when outside the above by the density ρ _L and temperature T, the turn based on the mass flow rate Q of the pressure P and B calculated above, compared to the above-B based on the calculated density ρ _L and temperature T, the more high The above B is determined with accuracy and appropriate.
上述塗布裝置1是以泵7將塗布液3一邊藉由測量部21測量該塗布液3之質量流量,一邊送到塗布部13,將送來的塗布液3從塗布部13噴出到片材11以進行塗布。在塗布時,測量部21的測量結果D被傳送到控制部23,當控制部23判斷測量結果D比基準值S大時,會減少泵7中作為送液量之質量流量。另一方面,控制部23判斷測量結果D比基準值S小時,會增加泵7中作為送液量之質量流量。 In the coating apparatus 1, the coating liquid 3 is sent to the coating unit 13 by measuring the mass flow rate of the coating liquid 3 by the measuring unit 21, and the supplied coating liquid 3 is ejected from the coating unit 13 to the sheet 11 . For coating. At the time of coating, the measurement result D of the measuring unit 21 is transmitted to the control unit 23. When the control unit 23 determines that the measurement result D is larger than the reference value S, the mass flow rate as the liquid supply amount in the pump 7 is reduced. On the other hand, when the control unit 23 determines that the measurement result D is smaller than the reference value S, the mass flow rate as the liquid supply amount in the pump 7 is increased.
像這樣,以控制部23一邊變更藉由泵7傳送來之塗布液3的質量流量,一邊以塗布部13將塗布液3塗布於片材11上,被塗布於片材11上之塗布液3藉由固化部27而被固化,以形成塗布膜40。 In this manner, the control unit 23 applies the coating liquid 3 to the sheet 11 by the coating unit 13 while changing the mass flow rate of the coating liquid 3 conveyed by the pump 7, and the coating liquid 3 applied to the sheet 11 is applied. The coating film 40 is formed by being cured by the curing portion 27.
在此類塗布裝置1中,可由測量部21測量被泵(送液部)7送到塗布部13之塗布液3的送液量。藉由如此之測量,相較於測量塗布膜40之厚度的情況,更能快速且不浪費地抑制塗布膜40之厚度的變動。 In such a coating apparatus 1, the amount of liquid supplied from the pump (liquid supply portion) 7 to the coating liquid 3 of the coating portion 13 can be measured by the measuring portion 21. By such measurement, the variation in the thickness of the coating film 40 can be suppressed more quickly and without waste than in the case of measuring the thickness of the coating film 40.
而且,可採用質量流量作為塗布液3之送液量的指標,由測量部21進行塗布液3之質量流量的測量,再根據測量部21之測量結果D與質量流量之基準值S來調整塗布液3之送液量。藉由如此之變更,相較於將體積流量作為指標的情況更能確實抑制塗布膜40之厚度的變動。 Further, the mass flow rate can be used as an index of the liquid supply amount of the coating liquid 3, and the measurement unit 21 measures the mass flow rate of the coating liquid 3, and adjusts the coating based on the measurement result D of the measuring unit 21 and the reference value S of the mass flow rate. The amount of liquid supplied to the liquid 3. By such a change, the variation in the thickness of the coating film 40 can be surely suppressed as compared with the case where the volume flow rate is used as an index.
又,藉由質量流量之基準值S是根據被塗布在片材11上 之塗布液3中的固化成分的質量分率B來決定,其會根據與塗布膜40之厚度有相關關係之塗布液3的固化成分的質量分率,來設定基準值S。因此,可以更高精度地變更質量流量。 Further, the reference value S by the mass flow rate is applied to the sheet 11 according to The mass fraction B of the curing component in the coating liquid 3 is determined, and the reference value S is set based on the mass fraction of the curing component of the coating liquid 3 in relation to the thickness of the coating film 40. Therefore, the mass flow rate can be changed with higher precision.
再者,藉由在塗布液3之密度ρ_L及塗布液3之溫度T外,又根據塗布液3之壓力P及塗布液3之質量流量Q來決定上述固化成分之質量分率B,可以更高精度地變更質量流量。 Further, the outer coating solution by a density of ρ _L and the temperature T 3 is the coating liquid, but also to determine the mass of the curable composition according to the pressure P of the coating solution 3 and coating solution mass flow rate Q 3 of the fraction B, can be Change the mass flow rate with higher precision.
因此,藉由上述構成之塗布裝置1,可以較為迅速且確實地,並且不浪費地抑制塗布膜40之厚度的變動。 Therefore, with the coating apparatus 1 configured as described above, the variation in the thickness of the coating film 40 can be suppressed relatively quickly and reliably without waste.
又,在本實施型態中,控制部23宜將塗布液3之質量流量調整在基準值S的±10%以內,調整在±5%以內更佳。 Further, in the present embodiment, the control unit 23 preferably adjusts the mass flow rate of the coating liquid 3 within ±10% of the reference value S, and the adjustment is preferably within ±5%.
像這樣,控制部23藉由將塗布液3之質量流量調整在基準值S的±10%以內,可以更確實地,且不浪費地抑制塗布膜40之厚度的變動。 By adjusting the mass flow rate of the coating liquid 3 within ±10% of the reference value S, the control unit 23 can more reliably suppress variations in the thickness of the coating film 40 without waste.
又,本實施型態之塗布膜的製造方法是使用前述塗布裝置1,一邊藉由測量部21測量塗布液3之質量流量,且一邊藉由控制部23,根據基準值S與測量部21之測量結果D變更泵7的質量流量,一邊藉由塗布部13在片材11上塗布塗布液3,將被塗布之塗布液3以固化部27固化,形成塗布膜40。 Moreover, in the manufacturing method of the coating film of this embodiment, the mass flow rate of the coating liquid 3 is measured by the measuring part 21, and the control part 23 is based on the reference value S and the measuring part 21 by using the coating apparatus 1. Measurement Result D The mass flow rate of the pump 7 is changed, and the coating liquid 3 is applied onto the sheet 11 by the coating portion 13, and the applied coating liquid 3 is cured by the curing portion 27 to form the coating film 40.
根據此構成,其與上述一樣能較為迅速確實且不浪費地抑制塗布膜40之厚度的變動。 According to this configuration, as described above, the variation in the thickness of the coating film 40 can be suppressed quickly and reliably without waste.
如上所述,根據本實施形態,提供一種塗布裝置1及塗布膜40之製造方法,可較為迅速確實且不浪費地抑制塗布膜40之厚度的變動。 As described above, according to the present embodiment, the coating apparatus 1 and the method for producing the coating film 40 are provided, and the variation in the thickness of the coating film 40 can be suppressed quickly and reliably without waste.
本實施形態之塗布裝置及塗布膜之製造方法,雖如上所述,但本發明並不限於上述實施形態,其可在本發明之預期的範圍內做適當的設計變更。 The coating apparatus and the method for producing a coating film of the present embodiment are as described above, but the present invention is not limited to the above-described embodiments, and appropriate design changes can be made within the intended scope of the invention.
以下會舉出實施例以更詳細地說明本發明,但本發明並不限定於此。 The invention will be described in more detail below by way of examples, but the invention is not limited thereto.
在本實施例中,顯示了實際從以上算式(3)來算出B之實驗以及檢討所算出之B的有效性的實驗。又,作為比較也一併顯示使用在上述算式(3)中不使用塗布前之塗布液壓力P及塗布液之質量流量Q來算出B之算式,即下述算式(6),從下述算式(6)算出B的實驗、及檢討所算出之B的有效性的實驗。 In the present embodiment, an experiment for actually calculating B from the above formula (3) and an experiment for reviewing the validity of the calculated B are shown. In addition, as a comparison, the calculation formula of B is calculated by using the coating liquid pressure P before coating and the mass flow rate Q of the coating liquid in the above formula (3), that is, the following formula (6), from the following formula (6) An experiment for calculating B and reviewing the validity of the calculated B.
【數4】B=a×ρ_L+b×T+c…(6) [Number 4] B = a × ρ_L + b × T + c... (6)
在以上算式(6)中,B、ρ_L、T、a、b、c與上述算式(3)中所使用者相同。 In the above formula (6), B, ρ _L, T, a, b, and c are the same as those in the above formula (3).
(實驗1) (Experiment 1)
下述作業1~4中,從上述算式(3)、(6)各自算出B,接著使用算出之B而從上述算式(1)、(2)算出質量流量之的基準值S。 In the following operations 1 to 4, B is calculated from each of the above equations (3) and (6), and then the calculated value B is used to calculate the reference value S of the mass flow rate from the above equations (1) and (2).
‧作業1(預備實驗) ‧ Assignment 1 (preparatory experiment)
為了算出上述算式(6)中所使用的係數a、b、c,而取得了塗布液之溫度T以及密度ρ_L。 In order to calculate the above expression (6) used in the coefficient a, b, c, acquires the temperature T and the coating liquid of density ρ _L.
具體而言,作為塗布液,使用了3種聚合物A溶液,其為將作為固化成分之聚合物成分A溶解於溶劑中而調製,且固化成分的質量分率相異的3種聚合物A溶液。 Specifically, as the coating liquid, three kinds of polymer A solutions which are prepared by dissolving the polymer component A as a curing component in a solvent and having different mass fractions of the curing components are used. Solution.
聚合物成分A是從含有重量平均分子量100萬之丙烯酸類聚合物的溶液(固化成分濃度10質量%)中所獲得的丙烯酸類黏著劑。 The polymer component A is an acrylic pressure-sensitive adhesive obtained from a solution (curing component concentration: 10% by mass) containing an acrylic polymer having a weight average molecular weight of 1,000,000.
將塗布液中之固化成分相對於塗布液之全質量的質量分率(從上述算式(4)或(5)中所算出的質量分率B’)設定為如表1所示,以調製成質量分率B’相異的3種聚合物A溶液。 The mass fraction of the solid content in the coating liquid with respect to the total mass of the coating liquid (mass fraction B' calculated from the above formula (4) or (5)) is set as shown in Table 1 to prepare Three polymer A solutions with different mass fractions B'.
預備實驗中所使用的裝置如圖5所示。圖5中,與圖1共通的部分附上了共通的符號。此圖5之裝置中,以泵7通過配管15並從容納部5將塗布液3供給到測量部21,而被供給到測量部21之塗布液3被送回到容納部5。像這樣,塗布液3會被循環。又,通過測量部21之塗布液的配管15內的壓力,是由壓力調整閥來調整。又,其將容納部5加熱及冷卻而調整塗布液3之溫度。作為測量部21,使用了可測量通過該測量部21之塗布液3的溫度T、密度ρ_L及質量流量Q的Coriolis式流量計(Promass 80F,Endress Hauser公司製)以及可測量壓力P之壓力計(VFM-A6、Valcom公司製)。 The device used in the preliminary experiment is shown in Figure 5. In Fig. 5, the parts common to Fig. 1 are attached with common symbols. In the apparatus of FIG. 5, the pump 7 passes through the pipe 15 and the coating liquid 3 is supplied from the accommodating portion 5 to the measuring portion 21, and the coating liquid 3 supplied to the measuring portion 21 is returned to the accommodating portion 5. As such, the coating liquid 3 is circulated. Further, the pressure in the pipe 15 passing through the coating liquid of the measuring unit 21 is adjusted by the pressure regulating valve. Moreover, the temperature of the coating liquid 3 is adjusted by heating and cooling the accommodating part 5. As the measuring unit 21 was used to measure temperature T 3 is the pressure, ρ _L density and mass flow rate Q of the Coriolis flow meter (Promass 80F, Endress Hauser Corporation) and measure the pressure P of the coating solution by the measuring portion 21 of the (VFM-A6, manufactured by Valcom).
使用此裝置,針對各質量分率B’之塗布液3,使塗布液3之質量流量Q及塗布液3的壓力P固定,並分3階段變更溫度T,使塗布液3循環,以測量部21來測量各塗布液3的密度ρ _L。將結果顯示於表1。 With this apparatus, the mass flow rate Q of the coating liquid 3 and the pressure P of the coating liquid 3 are fixed to the coating liquid 3 of each mass fraction B', and the temperature T is changed in three stages, and the coating liquid 3 is circulated to the measuring section. 21 to measure the density of each coating liquid is ρ _L 3. The results are shown in Table 1.
然後,從B’與所獲得之ρ_L及T,使用最小二乘法來加以反向計算,而算出a、b、c。將結果顯示於表2。 Then, from B 'and the obtained ρ _L and T, using the least squares method to be back calculated, and calculates a, b, c. The results are shown in Table 2.
‧作業2(預備實驗) ‧ Assignment 2 (preparatory experiment)
為了算出上述算式(3)中所使用的係數a、b、c、d、e,而取得了塗布液之溫度T、密度ρ_L、塗布液的壓力P、塗布液之質量流量Q。 In order to calculate the above equation (3) used in the coefficients a, b, c, d, e, acquired pressure P T of the temperature of the coating liquid, the density ρ _L, the coating liquid, the coating liquid mass flow rate Q.
具體而言,使用與上述作業1相同之塗布液以及裝置,針對各質量分率B’的塗布液,3階段變更溫度T,接著,分別2階段變更塗布液之壓力P及塗布液之質量流量Q並使塗布液循環,以測量部21來測量各塗布液之密度ρ_L。將結果顯示於表3。 Specifically, the coating liquid and the apparatus similar to the above-described operation 1 are used to change the temperature T in three stages for the coating liquid of each mass fraction B', and then the pressure P of the coating liquid and the mass flow rate of the coating liquid are changed in two stages. Q and circulating the coating liquid to measuring section 21 to measure the density of each coating liquid ρ _L. The results are shown in Table 3.
然後,從B’與所獲得之ρ_L、T、P及Q,使用最小二乘法來加以反向計算,而算出a、b、c、d、e。將結果顯示於表4。 Then, from B 'and the obtained ρ _L, T, P and Q, using the least squares method to be back calculated, and calculates a, b, c, d, e. The results are shown in Table 4.
‧作業3(本實驗) ‧ Assignment 3 (this experiment)
實驗例1~4 Experimental example 1~4
針對各塗布液,使用上述算式(6)算出B,接著,使用上述算式(1)、(2)算出質量流量之基準值S。 B is calculated for each coating liquid using the above formula (6), and then the reference value S of the mass flow rate is calculated using the above formulas (1) and (2).
具體而言,將被塗布於片材上之塗布液的寬度W、片材相對於塗布部之相對性移動速度U、被固化之塗布膜厚度的設定值t_ref設定為如表5所示。又,將被塗布於片材上且被固化之塗布膜的密度的暫時設定值ρ_a設定為如表5所示。 Specifically, the width W of the coating liquid applied to the sheet, the relative moving speed U of the sheet with respect to the coated portion, and the set value t_ref of the cured coating film thickness are set as shown in Table 5. And will be applied on the sheet and the density of the cured coating film is temporarily set to a set value ρ _a As shown in Table 5.
然後,將上述獲得之a、b、c與測得之T及ρ_L代入上 述算式(6)而算出B。 Then, the obtained above to give the a, b, c to the measured T and ρ _L into the above equation (6) is calculated B.
在如此之設定條件下,使用圖1所示之塗布裝置,在作為片材之聚對苯二甲酸乙二酯(PET)薄膜(MRF,三菱樹脂公司製)上塗布塗布液,使之固化以形成塗布膜,將形成之塗布膜的厚度t_ms使用接觸式位移計(線性規,尾崎製作所公司製)來測量。又,從算式(2)算出ρ_s。將結果顯示於表5。再者,從算式(1)算出之暫時的基準值S’也當作參考,顯示於表5。又,塗布液之溫度T也一併顯示於表5。 Under such a set condition, a coating liquid was applied onto a polyethylene terephthalate (PET) film (MRF, manufactured by Mitsubishi Plastics Co., Ltd.) as a sheet by using a coating apparatus shown in Fig. 1 to cure it. A coating film was formed, and the thickness t_ms of the formed coating film was measured using a contact type displacement meter (linear gauge, manufactured by Ozaki Seisakusho Co., Ltd.). Further, ρ s is calculated from the formula (2). The results are shown in Table 5. Furthermore, the temporary reference value S' calculated from the formula (1) is also referred to as Table 5 and is shown in Table 5. Further, the temperature T of the coating liquid is also shown in Table 5.
再者,表6所示之設定條件中,與上述相同,使用圖1所示之塗布裝置將塗布液塗布於PET薄膜上,使之固化形成塗布膜,並測量形成之塗布膜的厚度t_ms。 Further, in the setting conditions shown in Table 6, the coating liquid was applied onto a PET film by using a coating device shown in Fig. 1 and cured to form a coating film, and the thickness t_ms of the formed coating film was measured.
然後,將表5所設定之設定值t_ref相對於獲得之t_ms的比算出。將結果顯示於表6。又,從算式(1)算出之基準值S也一併顯示於表6。 Then, the ratio of the set value t_ref set in Table 5 to the obtained t_ms is calculated. The results are shown in Table 6. Moreover, the reference value S calculated from the formula (1) is also shown in Table 6.
如表6所示,在實驗例1中,由算式(6)算出之B(=0.120)與由上述算式(4)或(5)算出之B(=0.120)一致。又,厚度的測量值t_ms與厚度的設定值t_ref一致。 As shown in Table 6, in Experimental Example 1, B (=0.120) calculated by the formula (6) coincides with B (=0.120) calculated by the above formula (4) or (5). Further, the measured value t_ms of the thickness coincides with the set value t_ref of the thickness.
另一方面,實驗例2~4中,由算式(6)算出之B(=0.124、0.122、0.127)與由上述算式(4)或(5)算出之B(=0.120)不一致。又,厚度的測量值t_ms與厚度的設定值t_ref不一致。 On the other hand, in Experimental Examples 2 to 4, B (=0.124, 0.122, 0.127) calculated by the formula (6) does not coincide with B (=0.120) calculated by the above formula (4) or (5). Further, the measured value t_ms of the thickness does not coincide with the set value t_ref of the thickness.
如此可知,使用算式(6)時,從預定之設定值(實驗例1之設定值)變更為其他設定值(實驗例2~4)時,是無法抑制厚度之變動的。 As described above, when the formula (6) is used, when the predetermined set value (the set value of the experimental example 1) is changed to another set value (Experimental Examples 2 to 4), the thickness variation cannot be suppressed.
‧作業4(本實驗) ‧ Assignment 4 (this experiment)
實驗例5~8 Experimental example 5~8
針對各塗布液,使用上述算式(3)算出B,接著,使用上述算式(1)、(2)算出質量流量之基準值S。 B is calculated for each coating liquid using the above formula (3), and then the reference value S of the mass flow rate is calculated using the above formulas (1) and (2).
具體而言,將被塗布於片材上之塗布液的寬度W、片材相對於塗布部之相對性移動速度U、被固化之塗布膜厚度的設定值t_ref,設定為如表5所示。又,將被塗布於片材上且被固化之塗布膜的密度的暫時設定值ρ_a,設定為如表5所示。 Specifically, the width W of the coating liquid applied to the sheet, the relative movement speed U of the sheet with respect to the coating portion, and the set value t_ref of the thickness of the coating film to be cured are set as shown in Table 5. And it will be applied on the sheet and the density of the cured coating film is temporarily set value ρ _a, is set as shown in Table 5.
然後,將上述獲得之a、b、c、d、e與測得之T、ρ_L、P、Q代入上述算式(3)而算出B。 Then, a, b, c, d, and e obtained above are substituted with the measured T, ρ _L, P, and Q into the above formula (3) to calculate B.
在如此之設定條件下,使用圖1所示之塗布裝置,在作為片材之聚對苯二甲酸乙二酯(PET)薄膜(MRF,三菱樹脂公司製)上塗布塗布液,使之固化以形成塗布膜,將形成之塗布膜的厚度t_ms使用接觸式位移計(線性規,尾崎製作所公司製)來測量。又,從算式(2)算出ρ_s。將結果顯示於表5。再者,從算式(1)算出之暫時的基準值S’也當作參考,顯示於表5。又,塗布液之溫度T也一併顯示於表5。 Under such a set condition, a coating liquid was applied onto a polyethylene terephthalate (PET) film (MRF, manufactured by Mitsubishi Plastics Co., Ltd.) as a sheet by using a coating apparatus shown in Fig. 1 to cure it. A coating film was formed, and the thickness t_ms of the formed coating film was measured using a contact type displacement meter (linear gauge, manufactured by Ozaki Seisakusho Co., Ltd.). Further, ρ s is calculated from the formula (2). The results are shown in Table 5. Furthermore, the temporary reference value S' calculated from the formula (1) is also referred to as Table 5 and is shown in Table 5. Further, the temperature T of the coating liquid is also shown in Table 5.
然後,將表5所設定之設定值t_ref相對於獲得之t_ms的比算出。將結果顯示於表6。又,從算式(1)算出之基準值S也一併顯示於表6。 Then, the ratio of the set value t_ref set in Table 5 to the obtained t_ms is calculated. The results are shown in Table 6. Moreover, the reference value S calculated from the formula (1) is also shown in Table 6.
如表6所示,在實驗例5~8中,由算式(3)算出之B(=0.120)與由上述算式(4)或(5)算出之B(=0.120)一致。又,厚度的設定值t_ms與厚度的設定值t_ref一致。 As shown in Table 6, in Experimental Examples 5 to 8, B (=0.120) calculated by the formula (3) coincides with B (=0.120) calculated by the above formula (4) or (5). Further, the set value t_ms of the thickness coincides with the set value t_ref of the thickness.
如此可知,使用算式(3)時,從預定之設定值(從實驗例 5~8中被選出的1個設定值)變更為其他設定值(從實驗例5~8中被選出的其他設定值)時,是可以抑制厚度之變動的。 As can be seen, when formula (3) is used, the predetermined set value is obtained (from the experimental example). When one of the selected values in 5 to 8 is changed to another set value (other setting values selected from Experimental Examples 5 to 8), the thickness variation can be suppressed.
如上所述,可知與使用算式(6)算出B時相比較,使用算式(3)算出B時,即使U、W、Q、P變動,亦可高精度地求出B,其結果,可使用算式(1)、(2)高精度地求出基準值S。 As described above, when B is calculated using Equation (6), B can be accurately obtained even if U, W, Q, and P are changed, and the result can be used. The equations (1) and (2) obtain the reference value S with high precision.
由此可知,在塗布中邊測量ρ_L、T、P、Q邊使用算式(3)變更B,並基於此使用算式(1)變更基準值S的情況,相較於在塗布中邊測量ρ_L、T邊使用算式(6)變更B,並基於此使用算式(1)變更基準值S的情況,其所獲得之塗布膜的厚度變動,更能受到抑制。 From this, it is understood that B is changed by using the formula (3) while measuring ρ _L, T, P, and Q during coating, and the reference value S is changed based on the equation (1), and ρ is measured in comparison with the coating. When _L and T are changed by B using Equation (6), and the reference value S is changed by using Equation (1), the thickness variation of the coating film obtained can be more suppressed.
1‧‧‧塗布裝置 1‧‧‧ Coating device
3‧‧‧塗布液 3‧‧‧ Coating solution
5‧‧‧容納部 5‧‧‧ accommodating department
7‧‧‧泵 7‧‧‧ pump
11‧‧‧片材 11‧‧‧Sheet
13‧‧‧塗布部 13‧‧‧ Coating Department
15‧‧‧配管 15‧‧‧Pipe
19‧‧‧支撐部 19‧‧‧Support
21‧‧‧測量部 21‧‧‧Measurement Department
23‧‧‧控制部 23‧‧‧Control Department
27‧‧‧固化部 27‧‧‧Cure Department
40‧‧‧塗布膜 40‧‧‧Coating film
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