WO2014133364A1 - 슬롯다이 코팅장치 - Google Patents
슬롯다이 코팅장치 Download PDFInfo
- Publication number
- WO2014133364A1 WO2014133364A1 PCT/KR2014/001693 KR2014001693W WO2014133364A1 WO 2014133364 A1 WO2014133364 A1 WO 2014133364A1 KR 2014001693 W KR2014001693 W KR 2014001693W WO 2014133364 A1 WO2014133364 A1 WO 2014133364A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vacuum chamber
- slot die
- coating apparatus
- die coating
- volume
- Prior art date
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Classifications
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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
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
-
- 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
-
- 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
- B05C21/00—Accessories or implements for use in connection with applying liquids or other fluent materials to surfaces, not provided for in groups B05C1/00 - B05C19/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/28—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/50—Shaping under special conditions, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
-
- 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
- B05C5/005—Curtain coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
- B05C5/008—Slide-hopper curtain coaters
-
- 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
- B05C5/0245—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 for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
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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
- B05C5/0254—Coating heads with slot-shaped outlet
Definitions
- the present application relates to a slot die coating apparatus, and more particularly, to a slot die coating apparatus that can ensure the stability of the coating of the base film by reducing the pressure vibration in the vacuum chamber during slot die coating.
- a slot die coating method is used to form a coating layer on a base film.
- Figure 1 is a schematic view showing a slot die coating according to the prior art used in the slot die coating method.
- the surface of the base film 2 wound on the roll 1 is coated using the slot die 3.
- the coating layer 4 is formed on the surface of the base film 2 by the slot die 3.
- the vacuum chamber (5) is attached to the front end of the slot die (3), the vacuum chamber (5) serves to locally increase the stability of the coating by creating a vacuum atmosphere.
- a predetermined gap D occurs.
- the air flow introduced into the gap D generates a high velocity flow in the vacuum chamber 5 and the vortex flow is generated by the high velocity flow, so that the pressure inside the vacuum chamber 5 is not constant and vibrates so that the vacuum chamber ( 5)
- the internal pressure vibration occurs, there was a problem causing a defect of the product due to the unstable coating of the base film (2).
- Patent documents 1 and 2 disclose a slot die coating apparatus.
- Patent Document 1 Korean Patent Publication No. 2012-0108484
- Patent Document 2 Republic of Korea Patent Publication No. 2011-0098578
- the present application is to provide a slot die coating apparatus, and more particularly provides a slot die coating apparatus that can effectively reduce the pressure vibration inside the vacuum chamber to ensure the coating stability of the base film.
- the present application relates to a slot die coating apparatus.
- FIG. 2 is a schematic view showing a slot die coating apparatus according to the present application, will be described in detail below with reference to this.
- the slot die coating apparatus comprises a slot die 14 for supplying a coating liquid to the base film 12; A vacuum chamber 20 installed at a front end of the slot die 14 and having a gap D formed therein; And a pressure vibration reduction tank 30 connected to the vacuum chamber 20.
- the base film 12 may be supplied in a wound state on the roll 10.
- the base film is not particularly limited as long as it has a material that can be formed by the coating layer formed by the coating liquid.
- a material that can be formed by the coating layer formed by the coating liquid For example, an acrylic film or a plastic film generally used as an adhesive film or an optical film may be used.
- the slot die 14 may be installed adjacent to the roll 10, supply the coating liquid to the surface of the base film 12, and the coating layer 16 having various patterns on the surface of the base film 12. Can be formed.
- the vacuum chamber 20 may be installed at the front end of the slot die 14.
- the vacuum chamber 20 is a device installed to increase the stability of the coating on the base film 12 by providing a vacuum atmosphere for the slot die during the coating of the slot die (14).
- the internal pressure of the vacuum chamber 20 can be properly maintained within a range lower than atmospheric pressure, and is not particularly limited as long as the amplitude of the pressure fluctuation due to the inflow of air can be formed at 100 Pa or less.
- the volume of the vacuum chamber 20 may satisfy the following Equation 1 in relation to the volume of the pressure vibration reduction tank 30 to be described later.
- V 1 represents the volume of the vacuum chamber
- V 2 represents the volume of the pressure vibration reduction tank
- the volume (V 1) of the vacuum chamber is not particularly limited, for example, more than 0.1m 3, 0.2m 3 or more, 3 or more 0.3m, 0.4m or 0.5m 3 or greater than 3 Can be.
- the upper limit of the volume of the vacuum chamber 20 is not limited as long as it has a volume smaller than the reduction tank 30 to be described later, for example, may be about 0.9 m 3 , 0.8 m 3 or 0.7 m 3 .
- a gap D may be formed between the vacuum chamber 20 and the base film 12, whereby vortex flow may be generated by the air introduced into the vacuum chamber 20.
- the disturbance element generated in the vacuum chamber 20 appears as a vibration of pressure because the volume of the vacuum chamber 20 is small, and thus, when the volume of the vacuum chamber 20 is large, the pressure vibration of the disturbance of the same size may occur.
- the width may be small, a problem arises in terms of equipment having a volume exceeding the above-mentioned range. Therefore, the present application was intended to solve this by placing a pressure vibration reduction tank 30 having a volume larger than the volume of the vacuum chamber separately from the vacuum chamber 20.
- the first pipe 22 is connected to the lower portion of the vacuum chamber 20.
- One side of the first pipe 22 is provided with a pressure gauge 24 for checking the pressure inside the vacuum chamber 20, the end of the first pipe 22 is connected to the vacuum pump in the inside of the vacuum chamber 20 The pressure can be adjusted.
- the pressure vibration reduction tank 30 may be connected to the vacuum chamber 20.
- the pressure vibration reduction tank 30 is connected to the vacuum chamber 20 has a structure capable of providing a vacuum atmosphere together with the slot die 14, the common knowledge in the art of the present application Persons with the right to make various modifications and adaptations within the scope of the claims.
- the pressure vibration reduction tank 30 may be connected to a second pipe 26 connected to one side of the first pipe 22.
- the pressure vibration reduction tank 30 is illustrated as being connected to the second pipe 26, but is not necessarily limited thereto, and the second pipe 26 connected to the pressure vibration reduction tank 30 as shown in FIG. 3.
- the first pipe 22 of the vacuum chamber 20 may be directly connected to one side and the other side connected.
- the pressure vibration reduction tank 30 when the pressure vibration reduction tank 30 is directly connected to the first pipe 22 or the vacuum chamber 20 through the second pipe 26, the volume of the vacuum chamber 20 is substantially increased.
- the pressure vibration can be significantly reduced, thereby minimizing the disturbance element, and consequently ensuring the stability of the coating.
- the volume of the pressure vibration reduction tank 30 should have a volume larger than that of the vacuum chamber 20 in order to effectively reduce the pressure vibration of the slot die coating apparatus of the present application including the same. It may be 10 times, 15 times or 20 times or more than the volume, but is not limited thereto.
- the volume of the vacuum chamber and the volume of the pressure vibration reduction tank may satisfy the following Equation 2.
- V 1 represents the volume (m 3) of the vacuum chamber
- V 2 represents the volume (m 3) of the pressure vibration reduction tanks
- A is 1m 3 / N to 20m 3 / N is a
- P 1 Represents the pressure (N / m 2 ) in the vacuum chamber
- P 2 represents the atmospheric pressure (N / m 2 )
- D represents the width (m) of the gap formed in the vacuum chamber
- W is formed after coating of the base film. The length m of the coating layer in the horizontal direction is shown.
- the unit of the volume (V 1 ) of the vacuum chamber and the volume (V 2 ) of the pressure vibration reduction tank may be represented by cm 3 in addition to m 3 , preferably m 3 , If the pressure P 1 of the vacuum chamber is smaller than the atmospheric pressure P 2 , the lower limit is not particularly limited. It can be suitably formed in the range of from 1,000Pa.
- D represents the width of the gap formed in the vacuum chamber, and the smaller the amount of air flowing into the vacuum chamber, the lower limit is not particularly limited, for example, 1 mm or less, 0.5 mm or less or 0.1 mm or less It may be, preferably formed in the range of about 0.1mm to 0.5mm, W represents the length in the horizontal direction of the coating layer formed after the coating of the base film, can be formed in various lengths depending on the width of the gap However, for example, it may be formed in the range of about 1mm to 10,000mm, the A is the sum of the volume (V 1 ) of the vacuum chamber and the volume (V 2 ) of the pressure vibration reduction tank described above atmospheric pressure (P).
- the unit of A is m 3 / N, it may have an appropriate value within the range of 0.1 to 30, 0.5 to 25, 0.5 to 20, or 1 to 20.
- the volume of the pressure vibration reduction tank 30 satisfies Equation 2 and is not particularly limited as long as it has a volume larger than that of the vacuum chamber 20.
- the pressure vibration reduction tank is connected to the vacuum chamber, the pressure vibration inside the vacuum chamber can be effectively attenuated, thereby ensuring the coating stability of the base film, and consequently reducing the defective rate of the product.
- the present application also relates to a film having a coating layer formed by the slot die coating apparatus.
- the film is not particularly limited as long as it can be manufactured by forming a coating layer by a slot die coating method.
- the film may be an adhesive film or an optical film.
- the film having the coating layer formed by the slot die coating apparatus may increase the productivity by reducing the defect rate of the product to which the coating layer is uniformly formed.
- the slot die coating apparatus can effectively reduce the pressure vibration inside the vacuum chamber by connecting the pressure vibration reduction tank to the vacuum chamber, thereby ensuring the coating stability of the base film and consequently reducing the defective rate of the product. .
- FIG. 1 is a schematic view showing a slot die coating apparatus according to the prior art.
- Figure 2 is a schematic view showing a slot die coating apparatus according to an example in the present application.
- Figure 3 is a schematic view showing a slot die coating apparatus according to another example in the present application.
- the stain of the coating layer formed in the Examples and Comparative Examples was visually observed and evaluated according to the following criteria.
- the slot die coating apparatus can effectively reduce the pressure vibration inside the vacuum chamber by connecting a pressure vibration reduction tank to the vacuum chamber, thereby ensuring the coating stability of the base film, and as a result It can be seen that the defective rate of the product can be reduced.
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Abstract
Description
실시예 | 비교예 | |
코팅의 얼룩 정도 | ○ | × |
Claims (8)
- 기재 필름에 코팅액을 공급하는 슬롯다이;상기 슬롯다이의 전단부에 설치되고, 상기 기재 필름과 간극이 형성되는 진공챔버; 및상기 진공챔버와 연결되는 압력진동 저감탱크를 포함하는 슬롯다이 코팅장치.
- 제 1 항에 있어서, 상기 기재 필름은 롤에 의해 공급되는 기재 필름인 슬롯다이 코팅장치.
- 제 1 항에 있어서, 상기 진공챔버의 일측에는 진공펌프와 연결된 제 1 파이프가 연결된 슬롯다이 코팅장치.
- 제 3 항에 있어서, 상기 제 1 파이프의 일측에는 상기 압력진동 저감탱크와 연결된 제 2 파이프가 연결된 슬롯다이 코팅장치.
- 제 1 항에 있어서, 하기 수식 1을 만족하는 슬롯다이 코팅장치:[수식 1]V1 ≤ V2상기 수식 1에서, V1은 진공챔버의 부피를 나타내고, V2는 압력진동 저감탱크의 부피를 나타낸다.
- 제 1 항에 있어서, 하기 수식 2를 만족하는 슬롯다이 코팅장치:[수식 2]V1 + V2 ≥ A(P2-P1)DW상기 수식 2에서, V1은 진공챔버의 부피(m3)를 나타내고, V2는 압력진동 저감탱크의 부피(m3)를 나타내며, A는 1m3/N 내지 20m3/N이고, P1은 진공챔버 내의 압력(N/m2)을 나타내며, P2는 대기압(N/m2)을 나타내고, D는 진공챔버에 형성된 간극의 폭(m)을 나타내며, W는 기재 필름의 코팅 후 형성된 코팅층의 수평 방향으로의 길이(m)를 나타낸다.
- 제 5 항에 있어서, 압력진동 저감탱크의 부피는 진공챔버의 부피 대비 2배 이상인 슬롯다이 코팅장치.
- 제 1 항 내지 제 7 항 중 어느 한 항에 따른 슬롯다이 코팅장치에 의해 코팅층이 형성된 필름.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2015534407A JP2015532197A (ja) | 2013-02-28 | 2014-02-28 | スロットダイコーティング装置 |
EP14757042.8A EP2962769A4 (en) | 2013-02-28 | 2014-02-28 | SLOT DIES COATING DEVICE |
CN201480003040.XA CN104781016B (zh) | 2013-02-28 | 2014-02-28 | 狭缝式模具涂布装置 |
US14/432,106 US9682395B2 (en) | 2013-02-28 | 2014-02-28 | Slot die coating apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20130022223 | 2013-02-28 | ||
KR10-2013-0022223 | 2013-02-28 |
Publications (1)
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WO2014133364A1 true WO2014133364A1 (ko) | 2014-09-04 |
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PCT/KR2014/001693 WO2014133364A1 (ko) | 2013-02-28 | 2014-02-28 | 슬롯다이 코팅장치 |
Country Status (6)
Country | Link |
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US (1) | US9682395B2 (ko) |
EP (1) | EP2962769A4 (ko) |
JP (1) | JP2015532197A (ko) |
KR (1) | KR20140108173A (ko) |
CN (1) | CN104781016B (ko) |
WO (1) | WO2014133364A1 (ko) |
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JP6804850B2 (ja) * | 2016-02-26 | 2020-12-23 | 東レ株式会社 | 塗布装置及び塗布方法 |
KR102466419B1 (ko) * | 2016-03-02 | 2022-11-11 | 삼성디스플레이 주식회사 | 슬릿 코터 |
CN109332109B (zh) * | 2018-11-07 | 2023-08-29 | 广东电网有限责任公司 | 一种电杆安健环喷涂的辅助支架 |
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2014
- 2014-02-28 CN CN201480003040.XA patent/CN104781016B/zh active Active
- 2014-02-28 WO PCT/KR2014/001693 patent/WO2014133364A1/ko active Application Filing
- 2014-02-28 US US14/432,106 patent/US9682395B2/en active Active
- 2014-02-28 EP EP14757042.8A patent/EP2962769A4/en not_active Withdrawn
- 2014-02-28 KR KR1020140024151A patent/KR20140108173A/ko not_active Application Discontinuation
- 2014-02-28 JP JP2015534407A patent/JP2015532197A/ja active Pending
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Also Published As
Publication number | Publication date |
---|---|
CN104781016B (zh) | 2017-03-29 |
EP2962769A1 (en) | 2016-01-06 |
EP2962769A4 (en) | 2016-10-19 |
KR20140108173A (ko) | 2014-09-05 |
US9682395B2 (en) | 2017-06-20 |
CN104781016A (zh) | 2015-07-15 |
US20150273514A1 (en) | 2015-10-01 |
JP2015532197A (ja) | 2015-11-09 |
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