JPH0838973A - Entire surface coating-type die coater - Google Patents

Abstract

PURPOSE:To obtain a uniform and good coated surface over the entire surface of a strip material. CONSTITUTION:A coating soln. is discharged from a slot 52 formed in the die main body 4 consisting of plural metallic materials 2 and 3 and applied on a strip material by this die coater 1. A manifold 22, a first coating soln. inlet 32 communicating with the manifold 22, the second coating soln. inlets 33 and 34 communicating respectively with the manifold 22 on both sides of the first coating soln. inlet 32 and a through-hole 50 communicating the manifold 22 with the slot 52 are provided in the upper metallic material 2. A packing is furnished to the manifold 22 respectively between the first inlet 32 and the second inlets 33 and 34, a coating width adjusting plate having a notch is arranged on both sides of the slot 52, and the notches are communicated with the through-hole 50 positioned outside the packing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die coater for applying a coating liquid on the entire surface of a belt-shaped material such as a metal plate which is continuously conveyed.

[0002]

2. Description of the Related Art Conventionally, a die coater shown in FIG. 7 is known as a die coater for applying a coating liquid to a belt-shaped material which is continuously conveyed. The die coater 140 is composed of an upper metal piece 141 and a lower metal piece 142, and a manifold 143 is formed on a facing surface 145 of the upper metal piece 141 and the lower metal piece 142. A slot portion 147 is formed on the facing surface 145 between the lower metal member 142 and the lower metal member 142. Further, as shown in FIG. 8, the tip lip portion 14 is provided at both ends of the slot portion 147.
The coating width adjusting plates 150 and 150 'for adjusting the coating width of the coating liquid discharged from No. 6 are installed. The coating width adjusting plates 150, 150 'are attached to, for example, rods 151, 151' installed in the manifold 143. By moving the rods 151, 151 ', the coating width adjusting plates 150, 150' can be moved. The position is changed so that the coating width of the coating liquid discharged from the tip lip portion 146 can be adjusted.

In the die coater 140 having the above structure, as shown in FIG. 9, the coating width L3 at which the coating liquid is discharged from the tip lip portion 146 is the width W3 of the strip material 144.
If it is wider than that, there are the following problems. For example, when the thickness of the strip material 144 is 300 μm and the gap G between the tip lip portion 146 and the strip material 144 is 50 μm,
When the coating width L3 of the tip lip portion 146 is set to be wider than the width W3 of the strip material 144, the thickness of the strip material 144 is increased in the end portions 152 and 152 'of the tip lip portion 146 that exceed the width W3 of the strip material 144. The gap S (350 μm), which is the thickness including the gap G, is the backup roll 148.
It occurs between the surface of and. Therefore, the tip lip portion 14
The coating liquid discharged from 6 is applied to the end portions 154 and 154 of the strip-shaped material 144.
154 ′ flows to the outer peripheral surface of the backup roll 148, which causes the strip material 144 and the lip portion 14 to flow.
There was a problem that the bead of the coating liquid between No. 6 and 6 was disturbed to cause uneven coating.

Therefore, conventionally, in this type of die coater,
As shown in FIG. 10, the coating width adjusting plates 150 and 150 ′ are overlapped with the strip-shaped material 144, and the tip lip portion 14
6, the width of the coating liquid discharged, that is, the coating width L4 is made smaller than the width W3 of the strip-shaped material 144 by several mm to keep the coating liquid discharge pressure uniform in the strip-shaped material width direction, and a uniform coating state without unevenness can be obtained. I am trying.

[0005]

However, in the above-mentioned method, regions where the coating liquid is not applied are generated at both end portions 154 and 154 'of the strip-shaped material 144. Therefore, the uncoated regions at both ends of the strip-shaped material have to be trimmed and removed, resulting in a poor material yield and an extra step being required.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention has been made to solve the above problems, and a full-face coating type die coater according to claim 1 is formed on a die body composed of a plurality of metal objects. In a die coater for discharging a coating liquid from a slot portion formed to coat a strip-shaped material, inside the upper metal member or the lower metal member, a manifold, a first coating liquid supply port communicating with the manifold, and the first coating liquid supply port. A second coating liquid supply port that communicates with the manifold on both sides of the coating liquid supply port and a communication portion that communicates the manifold and the slot portion are provided, and the manifold has a first coating liquid supply port. A packing is provided between the second coating liquid supply port and a coating width adjusting plate disposed on each side of the slot portion. Each coating width adjusting plate has a slot facing the other coating width adjusting plate. Department Thereby forming a notch having a predetermined width from the outlet side of the front end corner, these notches is characterized in that communicates with the through portion positioned the outside of the packing.

Further, in the full-face coating type die coater according to the second aspect, the first manifold and the second manifold located on the strip-shaped material side of the first manifold are provided inside the upper metal member or the lower metal member. A first coating liquid supply port communicating with the first manifold, second coating liquid supply ports communicating with the second manifold on both sides of the first coating liquid supply port, and the first coating liquid supply port. A first penetrating portion that communicates the manifold and the slot portion, and a second penetrating portion that communicates the second manifold and the slot portion are provided, and the coating width adjusting plates are respectively arranged on both sides of the slot portion. Is formed with a notch having a predetermined width from the tip corner portion on the discharge side of the slot portion facing the other coating width adjusting plate, and these notches communicate with the second penetrating portion located outside the packing. Characteristic That.

Further, in the full-face coating type die coater according to the third aspect, inside either one of the upper metal member and the lower metal member,
A first manifold, a first coating liquid supply port that communicates with the first manifold, and a communication portion that communicates the first manifold and the slot portion are provided, and the other metal piece that remains is provided with the above A second manifold located closer to the strip-shaped material than the first manifold, second coating solution supply ports communicating with both sides of the second manifold, and communication communicating the second manifold with the slot portion. It is characterized by the fact that parts are provided.

It is preferable that the packing is provided on a rod that is inserted into the manifold in which the packing is arranged so as to be able to move back and forth so that the position of the packing can be adjusted appropriately according to the coating width.

[0010]

In the full-face coating type die coater having the above structure, the coating liquid supplied to the first coating liquid supply port has a space sandwiched between packings of the manifold and a communication portion communicating with this space. As described above, the liquid is discharged from the central region sandwiched by the coating width adjusting plates of the slot portion and applied to the band-shaped material.
On the other hand, the coating liquid supplied to the second coating liquid supply port passes through spaces on both sides located outside the packing of the manifold, and a penetrating portion that communicates with this space and is not blocked by the coating width adjusting plate. The material is discharged to both sides of the central region through the notch of the coating width adjusting plate and applied to the band-shaped material.

In the full-face coating type die coater according to the second and third aspects, the coating liquid supplied to the first manifold through the first coating liquid supply port has a central portion sandwiched by the coating width adjusting plates. In the region (2), the fluid flows from the communicating portion to the slot portion and is discharged from the slot portion in this region. On the other hand, the coating liquid supplied to the second manifold via the second coating liquid supply port has a space located outside the packing and a penetrating portion that communicates with this space and is not blocked by the coating width adjusting plate. And is discharged to both sides of the above area through the notch of the coating width adjusting plate.

Therefore, if the central region is opposed to the region excluding both ends of the strip-shaped material and the notch opening is opposed to the region including both ends of the strip-shaped material, it is opposed to the central region. In the region, a stable coating liquid meniscus is formed between the discharge port of the slot portion and the strip-shaped material, and the coating liquid is evenly applied to the strip-shaped material. The coating liquid discharged from the notches is applied to both ends of the strip-shaped material.

Further, in the case where the packing is provided on the rod inserted into the manifold so as to be movable back and forth, the position of the packing can be easily adjusted according to the width of the band-shaped material by operating this rod.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a first embodiment of a blanket coating type die coater 1 according to the present invention.
A die body 4 including an upper metal piece 2 and a lower metal piece 3 that supports the upper metal piece 2, a support base 5 that supports the die body 4, and an upper metal piece 2
And the lower metal member 3 are sandwiched between the two coating width adjusting plates 53, 53 'having notches 59, 59'.

The support base 5 is provided so as to be movable back and forth with respect to a strip-shaped material (for example, a metal strip) 7 conveyed in the direction of the arrow along the outer circumference of the backup roll 6. The support base 5 is provided with a concave portion facing the backup roll 6, that is, a main body housing portion 8, and a plurality of through holes 10 penetrating the main body housing portion 8 are formed in the rear wall 9.
A plurality of hydraulic cylinders 12 are provided on the upper support 11 above the main body accommodating portion 8.
3 is inserted into a through hole 14 provided in the upper support 11.

The lower metal member 3 has an inner surface 1 facing the upper metal member 2.
5, a plurality of substantially conical concave portions 16 are formed, and a plurality of screw holes 19 are formed in the rear portion. A disc spring 18 is housed in each of the recesses 16. Also, the disc spring 18
Are fixed with bolts 17, respectively, and the upper metal 2 and the lower metal 3
The upper metal piece 2 is urged upward by the disc spring 18 when they are superposed in the illustrated state. In addition,
The means for urging the upper metal 2 is not limited to the disc spring 18, but may be a coil spring, a leaf spring, or an elastic body such as rubber. In addition, the projection material 23 is provided on the upper metal piece 2 and
An inclined groove portion 24 is provided in the groove, and when connecting the upper metal piece 2 and the lower metal piece 3, positioning is performed by moving the position of the protrusion 23 up and down along the inclined surface of the groove portion 24.

Inside the upper metal member 2, a manifold 22 is provided for distributing the coating liquid along the coating width direction. Rods 28 and 28 'having packings 27 and 27' at their tip end portions are inserted into the manifold 22 so as to be movable back and forth from both ends thereof.
The periphery of 8, 28 'is sealed by seal members 29, 29'. A first coating liquid supply port 32 communicating with the central portion of the manifold 22 is also formed inside the upper metal member 2. In addition, the upper metal piece 2 has a first coating liquid supply port 3
Second coating liquid supply ports 33 and 34, which communicate with the manifold 22, are provided on both end sides at a predetermined distance from 2. The inner surface of the upper metal member 2 is scraped off to a position that has moved rearward by a predetermined distance from the tip lip portion 51, and slot portions 52 are formed over the entire width. The slot portions 52 and the manifold 22 are formed at equal intervals. Are communicated with each other through the through hole 50.

The coating width adjusting plates 53, 53 'are, for example, strip-shaped plates made of a metal such as aluminum or a synthetic resin having a thickness of 0.3 to 0.5 mm, and the plate width thereof matches the depth of the slot portion 52. I am allowed. These coating width adjusting plates 53, 5
On the tip side of 3 ', cutouts 59, 59' are formed in a band shape from one edge extending in the coating width direction toward the opposite edge, and the slot portion discharge side of these cutouts 59, 59 '. The ends are aligned with the tip corners 58, 58 ', and the notch 5
Wedge-shaped restricting portions 56, 56 'are formed near the tips of 9, 59'. The opening width of the notches 59 and 59 'is several mm.
Is preferred. Further, the depth of the notches 59 and 59 'and the width at the deepest portion are the same as those of the opening 6 of the notches 59 and 59'.
When 3 and 63 'are aligned with the lip 51, the notch 5
9, 59 ′ are made to communicate with the plurality of through holes 50.

In the above construction, the lower metal piece 3 and the upper metal piece 2
And the protruding material 23 provided on the upper metal 2 is attached to the lower metal 3
The die body 4 is assembled by engaging with the groove 24 of the. The die main body 4 is accommodated in the main body accommodating portion 8 of the support base 5, the bolt 21 is inserted into the through hole 10 of the rear wall 9 of the support base, and the die 21 is screwed into the screw hole 19 of the lower metal 3 to be fixed. . The coating width adjusting plates 53, 53 ′ are inserted into both sides of the slot 52 with the openings of the notches 59, 59 ′ aligned with the lip 51, and the upper metal 2 urged upward by the disc spring 18 is inserted. Cylinder 1
The second cylinder rod 13 presses and holds it.

The coating liquid supply ports 32, 33 and 34 are
As shown in FIG. 3, it is connected to a coating liquid supply device. In this coating liquid supply device, the pipe 42 connected to the coating liquid storage tank 40 is connected to the pipe 35 and the flow rate control valve 4 via the pump 41.
The pipe 35 is connected to the first coating liquid supply port 32 via the flow rate control valve 44. The pipe 43 is branched into pipes 36 and 37,
These pipes 36 and 37 are flow control valves 46 and 4 respectively.
7 and the second coating liquid supply ports 33 and 34, respectively. Furthermore, a relief valve 48 is provided in the pipe 42 so that the coating liquid excessively supplied by the pump 41 is returned to the tank 40.

Die coater 1 assembled in this way
Is arranged such that the tip lip portion 51 faces the strip-shaped material 7 with a predetermined gap. Although the die coater 1 is opposed to the strip-shaped material 7 in the horizontal direction in the drawings, it may be opposed to the strip-shaped material 7 from above or below. Also,
The pressing force of the cylinder rod 13 is released, and the coating width adjusting plate 5
The tip corners 58, 58 'of 3, 53' are located within a few mm of the ends 62, 62 'of the strip-shaped material 7 having the width W1 and the outer ends of the cutout openings 63, 63' are strip-shaped materials. The widths of the central coating region L1 and the both end coating regions L2 are adjusted by being positioned outside the end portions 62 and 62 'of No. 7, respectively. Further, by moving the rods 28, 28 ', the packings 27, 27' at the tips are arranged inside the notches 59, 59 'in a region where the wedge-shaped restricting portion 56 is located.

Therefore, when the pump 41 of the coating liquid supply device is driven to supply the coating liquid to the coating liquid supply port 32, the coating liquid spreads in the space 64 in the manifold 22 surrounded by the packings 27 and 27 '. When the coating liquid is supplied to the coating liquid supply ports 33 and 34, respectively, the coating liquid spreads into the spaces 65 and 66 inside the manifold 22 located outside the packings 27 and 27 '. The pressures of the coating liquids supplied to the coating liquid supply ports 32, 33 and 34 are the pressure adjusting valves 44, 45 and
Adjust appropriately with 46 and 47. Then, the coating liquid that has flowed into the space 64 flows out into the slot portion 52 located between the coating width adjusting plates 53 and 53 ′ through the through hole 50 that communicates with the space 64, and the end portion of the strip-shaped material 7. It is applied to the area 61 facing the central application area L1 except for 62 and 62 '.

On the other hand, the coating liquid flowing into the spaces 65 and 66 is
Both end regions of the strip-shaped material 7 which flow out into the notches 59, 59 'through the through holes 50 on the outside of the packings 27, 27' and are included in the opposite end application regions L2 of the openings of the notches 59, 59 'facing each other. 60, 60 '. Notch 5
The coating liquid discharged from 9, 59 'is also applied to the outer peripheral surface of the backup roller 6 facing the coating liquid,
This can be done by bringing a scraping blade into contact with the outer peripheral surface of the backup roller 6 and scraping it.

As described above, in the die coater 1, by adjusting the positions of the coating width adjusting plates 53, 53 'and the packings 27, 27', both end regions 60, 60 'of the strip-shaped material 7 and the regions sandwiched between them. 61 are painted separately. Further, a stable coating liquid meniscus is formed between the lip portion 51 and the strip material 7 in the central coating region L1 sandwiched between the coating width adjusting plates 53 and 53 ', and the coating liquid is evenly coated on the strip material 7. To be done. Further, the coating liquid discharged from the notches 59 and 59 ′ is applied to both end portions 62 and 62 ′ of the strip-shaped material 7.

When the coating width L1 is changed by changing the material, the cylinder 12 is operated to weaken the pressing force of the cylinder rod 13. Then, the upper metal member 2 is separated from the lower metal member 3 by 30 to 50 μm by the biasing force of the disc spring 18, and the slot portion 5
The gap of 2 widens. Then, the coating width adjusting plate moving device (not shown) moves the coating width adjusting plates 53 and 53 'to a desired position to change the coating width. After that, the cylinder 12 is operated to press the upper surface 31 of the upper metal member 2 with the cylinder rod 13 to fix the application width adjusting plates 53 and 53 '. At the same time, the rods 28, 28 'are moved to move the packings 27, 2
7'is aligned with the wedge-shaped restricting portions 56, 56 '.

In the die coater 1 having the above structure, the manifold 22 and the slot portion 52 are communicated with each other through a plurality of through holes 50, but the through holes 50 may have a slit shape. In addition, the manifold 22 is a metal fitting 3
It goes without saying that it may be provided in. Further, although the cylinder pressing method has been described for fixing the coating width adjusting plate 53, a screw pressing method may be used.

Next, a second embodiment according to the present invention will be described with reference to FIGS. In the die coater 70 shown in these figures, the upper metal piece 71 is attached to the first manifold 7
2 and a second manifold 73 located in front of it are formed in parallel, and these manifolds 72, 73 are respectively formed with a plurality of through holes in a slot portion 75 formed at the boundary between the upper metal piece 71 and the lower metal piece 74. It communicates via 76 and 77.

A first coating liquid supply port 78 communicates with the central portion of the first manifold 72, and the second manifold 7
The second coating liquid supply ports 79 and 80 communicate with both end sides of 3, respectively. The second manifold 73 has rods 83, 8 having packings 82, 82 'at both ends thereof.
3'is inserted, and both ends of the second manifold 73 are sealed around the rods 83, 83 'with sealing members 84, 84'.
It is sealed by. In addition, the first manifold 7
The ends of 2 are sealed by seal members 85 and 85 '. In the coating width adjusting plates 86, 86 'which are inserted into the slot portion 75 from both ends, the notch 8 is formed as in the first embodiment.
7, 87 'are formed, and the depth thereof is up to the region where the through hole 77 communicating with the second manifold 73 is located. The rest of the configuration is similar to that of the first embodiment, and the same members and parts are designated by the same reference numerals and the description thereof is omitted.

In the die coater 70, the coating liquid is supplied to the first manifold 72 from the coating liquid supply port 78 at the central portion. Further, the same coating liquid is supplied to the second manifold 73 from the liquid supply ports 79 and 80 on both sides. The coating liquid supplied to the first manifold 72 is applied to the coating width adjusting plate 8
From the through hole 76 in the region surrounded by 6, 86 ', it flows out into the slot portion 75 in the region and is applied to the region except the opposite ends of the strip-shaped material 7 opposed thereto. Further, the coating liquid supplied to the second manifold 73 flows out from the through hole 77 in the region where the cutouts 87 and 87 'are located to the slot portion 75 where the cutouts 87 and 87' are located, and into the cutouts 87 and 87 '. It is applied to the opposite ends of the strip-shaped material 7. Further, when the coating width is changed by changing the material or the like, it is performed in the same manner as in the first embodiment, and therefore its explanation is omitted.

In the second embodiment, the upper metal piece 71
Although the two manifolds 72 and 73 are provided in the above, one manifold 72 or 73 may be provided in the lower metal member 74.

The present invention can also be applied to the two-layer coating type die coater shown in FIG. This die coater 90
In the middle metal 91, a wedge-shaped support portion 93 facing the backup roller 92 is formed, and an upper slot portion 94 and a lower slot portion 95 are formed by shaving an upper portion and a lower portion thereof from a tip by a predetermined thickness. In addition, 91
An upper protrusion 96 and a lower protrusion 97 that protrude upward and downward of the wedge-shaped support 93 are formed on the upper surface.

The upper metal piece 98 is housed between the wedge-shaped support portion 93 and the upper protruding portion 96, and has a manifold 99 extending inside in the coating width direction, and a plurality of manifolds 99 that communicate the manifold 99 and the upper slot portion 94. The through hole 100 and the coating liquid supply port 101 communicating with the manifold 99 are formed,
It is fixed by a plurality of cylinders 103 provided at the rear part of the middle metal piece 91 and bolts (not shown). On the other hand, the lower metal member 104 is housed between the wedge-shaped support portion 93 and the lower protruding portion 97, and extends inside the manifold 1 in the coating width direction.
05, the manifold 105 and the lower slot portion 95
A plurality of through holes 106 that communicate with the manifold 10 and the manifold 10.
5, a coating liquid supply port 107 communicating with 5 is formed.
A plurality of cylinders (not shown) and bolts 1 provided at the rear of the vehicle
It is fixed by 08.

The coating width adjusting plates 110 and 110 'having the same shapes as those described in the first embodiment are inserted on both sides of the upper slot portion 94 and the lower slot portion 95, respectively. Further, as in the first embodiment, the manifold 9
The manifolds 99, 1 are provided at positions corresponding to the wedge-shaped restricting portions of the coating width adjusting plates 110, 110 '.
The packing of the rod inserted in 05 is arranged.

According to the die coater 90, the lower metal product 10
The coating liquid of the first layer, which is supplied to the coating liquid supply port 107 at the central portion of FIG. 4 and the coating liquid supply ports (not shown) at both ends, is applied between the coating width adjusting plates 110 and 110 ′ via the manifold 105. And discharge from the notches formed on the tip side of these coating width adjusting plates 110, 110 ', and both ends of the strip-shaped material 111,
The central portion between them is coated with the first layer coating liquid. In addition, the second layer coating liquid supplied to the coating liquid supply port 101 at the central portion of the upper metal member 98 and the coating liquid supply ports (not shown) at both ends is applied to the coating width adjusting plate 110 via the manifold 99. 11
The liquid is discharged through the notches formed at the leading end side of the coating width adjusting plates 110, 110 ′ between 0 ', and as a second layer coating liquid at both end portions of the strip-shaped material 111 and the center portion between them. It is applied in layers. In addition, when changing the coating width, the cylinder 103 and the bolt 108 are loosened, and the coating width adjusting plate 11 is
The positions of 0, 110 'and the packing may be adjusted.

[0035]

As is apparent from the above description, in the full-face coating type die coater of the present invention, if the region of the slot portion sandwiched by the coating width adjusting plates is opposed to the region except both ends of the strip-shaped material, In the area facing the area, a stable coating liquid meniscus is formed between the discharge port of the slot and the strip-shaped material, and the coating liquid is evenly applied to the strip-shaped material. The coating liquid discharged from the notch of the coating width adjusting plate is applied to both ends of the strip-shaped material. Therefore, a good coating surface can be obtained on the entire surface of the band-shaped material.

Further, if the packing is provided on the rod inserted into the manifold so as to be movable back and forth, and the rod and the coating width adjusting plate are moved, the coating width can be easily adjusted according to the width of the band-shaped material. .

[Brief description of drawings]

FIG. 1 is a sectional view of a die coater according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a piping system diagram of coating liquid supply piping.

FIG. 4 is a sectional view of a die coater according to a second embodiment of the present invention.

FIG. 5 is a plan view of FIG.

FIG. 6 is a sectional view of a die coater of a third embodiment according to the present invention.

FIG. 7 is a cross-sectional view of a conventional die coater.

FIG. 8 is a perspective view of a conventional die coater provided with a coating width adjusting plate.

FIG. 9 is an explanatory diagram for adjusting the coating width of a conventional die coater.

FIG. 10 is an explanatory diagram for adjusting the coating width of a conventional die coater.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Die coater, 2 ... Upper metal object, 3 ... Lower metal object, 7 ... Strip material, 22 ... Manifold, 28, 28 '... Rod, 50
... through hole (communication part), 52 ... slot part, 53, 53 '
... Coating width adjusting plate, 59, 59 '... Notches.

Claims (4)

[Claims] 1. A die coater for discharging a coating liquid from a slot portion formed in a die body composed of a plurality of metal objects to apply it to a band-shaped material, wherein a manifold and a metal mold are provided inside the upper metal object or the lower metal object. A first coating liquid supply port that communicates with the manifold, a second coating liquid supply port that communicates with the manifold on both sides of the first coating liquid supply port, and a communication section that communicates with the manifold and the slot portion. And a packing is respectively provided between the first coating liquid supply port and the second coating liquid supply port in the manifold, and coating width adjusting plates are arranged on both sides of the slot portion. The coating width adjusting plate is provided with notches having a predetermined width from the tip corner portion on the discharge side of the slot portion facing the other coating width adjusting plate, and these notches are formed in the penetrating portion located outside the packing. Communicating A full-coated die coater characterized by being passed through. 2. A die coater for discharging a coating liquid from a slot portion formed in a die body composed of a plurality of metal objects to apply it to a band-shaped material, wherein a first manifold is provided inside the upper metal object or the lower metal object. When,
A second member located on the strip-shaped material side of the first manifold;
And a first coating liquid supply port communicating with the first manifold, and second coating liquid supply ports communicating with the second manifold on both sides of the first coating liquid supply port, respectively. A first penetrating portion that communicates the first manifold and the slot portion and a second penetrating portion that communicates the second manifold and the slot portion are provided, and the second manifold has a first penetrating portion. Coating liquid supply port and second
A packing is provided between the coating liquid supply port and the coating liquid supply port, and coating width adjusting plates are arranged on both sides of the slot portion. Each coating width adjusting plate discharges the slot portion facing the other coating width adjusting plate. A full-application die coater characterized in that a notch having a predetermined width is formed from a corner portion on the side and the notch is communicated with a second penetrating portion located outside the packing. 3. A die coater for discharging a coating liquid from a slot portion formed in a die body composed of a plurality of metal objects to apply it to a strip-shaped material, wherein either of the upper metal object or the lower metal object is A first manifold, a first coating liquid supply port that communicates with the first manifold, and a communication section that communicates the first manifold and the slot section are provided. A second manifold located closer to the strip-shaped material than the first manifold, second coating solution supply ports communicating with both sides of the second manifold, and communication communicating the second manifold with the slot portion. And a packing is provided between the first coating liquid supply port and the second coating liquid supply port on the second manifold, and coating width adjusting plates are arranged on both sides of the slot part. Then Notches having a predetermined width are formed on the respective coating width adjusting plates from the tip corners on the discharge side of the slot portion facing the other coating width adjusting plate, and these notches are located outside the packing. A full surface coating type die coater characterized by communicating with the second penetrating portion. 4. The die coater of the entire surface coating type according to claim 1, wherein the packing is provided on a rod inserted into a manifold in which the packing is arranged so as to be able to move back and forth.