JP2572333B2 - Multi-layer coating equipment for dam type paint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive, a pressure-sensitive adhesive, a paint, etc. on a flexible support (hereinafter simply referred to as a support) such as a plastic film, paper, metal foil or the like which is continuously conveyed. The present invention relates to a coating apparatus for applying a paint or the like, and more particularly, to a multilayer coating apparatus for applying a paint or the like in multiple layers on a support with one coating apparatus.

[0002]

2. Description of the Related Art There are various types of coating apparatuses for applying a paint or the like in multiple layers on a continuously transported support. It is generally applied to

[0003] The method of applying the coating in multiple layers through a separate coating device for each layer increases the size of the entire device, costs, and costs.
Since it takes time and effort, a coating apparatus for applying a paint or the like in multiple layers with one coating apparatus has also been proposed. Referring to FIG. 4, highly adhesive paints 3 and 4 are placed on one rotating roll 2 that rotates while rotating support 1, and these are placed on support 1 by doctor blades 5 and 6. Apply sequentially in multiple layers. In the multilayer coating apparatus shown in FIG.
In addition, there is a problem that the positioning operation of No. 6 is complicated and difficult and that only relatively high-viscosity paints or the like can be used.

On the other hand, a dam for storing paint and the like is provided above (or on a side of) a fixing member and a rotating roll opposed to the fixing member, and the paint and the like in the dam are supported by the rotating roll and the backup roll. 2. Description of the Related Art A coating apparatus for applying a so-called dam-type paint to be applied on a body is known. Since the conventionally known dam type coating apparatus has a structure that requires at least two rolls, a rotating roll and a backup roll, it is time-consuming to adjust the rotation speed of each roll. It has been difficult to avoid problems such as time-consuming replacement and cleaning work, an increase in the size and cost of the coating apparatus, and the like. In order to solve the problem of such a conventionally known dam type coating apparatus, the applicant of the present invention has applied a dam type paint or the like in which a support as shown in FIG. Coating equipment was proposed. (Japanese Patent Application No. 4-12547
No. 9)

[0005] Referring to FIG. 5, a backup roll 12 comprising a roll rotating opposite to a fixing member 11 is provided, and a dam 14 having a bottom at a contact portion 13 between the fixing member 11 and the backup roll 12 is formed as a partition. 15. Paint and the like are supplied to and stored in the dam 14. A support 16 is wound around the backup roll 12, and the support 16 is directly immersed in paint or the like in the dam 14 and transported. The paint 16 and the like stored in the dam 14 are supported by the fixing member 11 and the backup roll 1.
When the sheet passes through the interval 2, the image is transferred to the support 16, and the support 16 is introduced into a drying device (not shown) and dried.

The applicant has already proposed a dam-type coating apparatus such as a dam-type paint in which the dam type coating apparatus shown in FIG. 5 is applied to a multi-layer coating apparatus and the positioning of the doctor blade is made simple and reliable. . Referring to FIGS. 6 and 7, a backup roll 22 is provided facing the fixing member 21, and a dam 24 having a contact portion 23 between the fixing member 21 and the backup roll 22 as a bottom is formed by the partition 25. Dam 24 is divided into a plurality of dams ₂₄ 1, 24 ₂ by the dividing wall 26, paints 27 is supplied to dam 24 ₁ below, different paints 28 is reservoir also above the dam 24 ₂ ing. A support 29 is wound around the backup roll 22, and the support 29 is provided with dams 24 ₁ and 24 _2.
It is immersed in the paints 27 and 28 inside and transported. The dividing wall 26 is provided with a coating knife 30 at its lower end. Partition body 25 and the front and rear walls 25 ₁ provided in front of the conveying direction of the support 29, has a square consisting provided sidewall 25 ₂ which in the width direction of both ends of the support 29,
Dividing wall 26 is removably inserted fitted in the guide groove 31 formed in the side wall 25 ₂ of the partition body 25.

According to the dam-type multi-layer coating apparatus proposed above, a paint 28 is first applied onto a support 29, and a paint 27 is applied thereon. The device enables the application of multiple layers of paint and the like,
Attachment and removal of the coating knife (including the coating knife) are facilitated, and the work of positioning the coating knife 30 at the tip of the dividing wall 26 is simplified, and the positioning accuracy is improved. In addition, a relatively low-viscosity paint or the like can be used.

Further, in a dam type coating device for coating paint, etc., in order to prevent stagnation of paint and the like stored in the dam,
The present applicant has already proposed a coating device for dam-type paint or the like provided with a regulating plate that partitions the inside of the dam back and forth. (Japanese Patent Application No. 4
That is, in a dam-type coating apparatus for paint or the like, the flow of paint or the like in the dam is mainly in front of the dam (when a fixed member and a rotating roll are provided, the upper portion of the rotating roll). It mainly occurs, and almost no flow occurs in the upper part of the fixing member.
For this reason, the paint and the like located on the upper portion of the fixing member stay for a long period of time, which causes uneven application to the support.

Therefore, as shown in FIG. 8, a regulating plate 41 is provided to partition the dam 42 into front and rear dams 42A and 42B.
The rear dam portion 42A is supplied with paint and the like via a supply passage 43. With such a structure, paint and the like in the rear dam portion 42A flow downward along the regulating plate 41 as indicated by PA in the figure, and the front dam portion 42B passes through the communicating portion 44 at the lower end of the regulating plate 41. Sent to. In the front dam portion 42B, the flow of paint etc.
As a result, there is generated a flow that rotates and flows as a whole, so that the paint and the like do not stay as a whole as a whole.

[0010] In the above-mentioned coating device for dam-type paint or the like, the supply passage 43 is reciprocated in the width direction of the support body 45 to prevent the liquid level from being varied in the dam, thereby preventing the coating from becoming uneven. Is prevented from occurring.

[0011]

THE INVENTION Problems to be Solved] In a multilayer coating system of the paint, such as the dumb previously proposed as shown in FIG. 6 and FIG. 7 also, the the flow of paint or the like in each of the dams 24 _1, 24 in ₂ Gum the residence of the paint or the like has occurred in 24 _1, one biased towards only on the side of 24 _2, the other side of the dam ₂₄ 1, 24 _2. Therefore, application unevenness of the paint or the like to the support 29 occurs.

Therefore, an object of the present invention is to solve the problem of FIG.
8 is applied to the multi-layer coating device such as a dam type coating device shown in FIG. 7, so that it is possible to apply the coating material in multiple layers with one coating device. An object of the present invention is to provide a multi-layer coating apparatus for dam-type paint or the like which prevents the paint or the like from staying.

[0013]

Means for Solving the Problems In order to achieve the above-mentioned object, a coating apparatus for a paint or the like according to the present invention has the following configuration. That is, a fixing member, a backup roll that is installed facing the fixing member at an interval, a partition body that is provided on the upper or side portion of the fixing member and the backup roll, and that forms a dam for storing paint and the like, A support wound around a backup roll, immersed in paint or the like in the dam, and continuously conveyed through an interval between the fixing member and the backup roll, and a support wound around the backup roll. One or more dividing walls provided with a gap between the body and the upper dam portion of the backup roll into a plurality of dams, and provided with a coating knife portion at the lower end, and stored in the plurality of dams It is composed of different paints and the like, and a supply passage for supplying the paints and the like to the plurality of dams. In the coating apparatus,
Providing a regulating plate that partitions the plurality of dams into a front dam portion and a rear dam portion located before and after in the support transport direction, and a communication portion that communicates the front and rear dam portions to the regulating plate. A dam-type coating device for coating the paint, etc., wherein the supply passage is opened to a rear dam portion to supply paint and the like to the rear dam portion.

Further, another coating apparatus of the present invention for coating paint or the like has the following configuration. That is, a fixing member, a backup roll that is installed facing the fixing member at an interval, a partition body that is provided on the upper or side portion of the fixing member and the backup roll, and that forms a dam for storing paint and the like, A support wound around a backup roll, immersed in paint or the like in the dam, and continuously conveyed through an interval between the fixing member and the backup roll, and a support wound around the backup roll. One or more dividing walls provided with a gap between the body and the upper dam portion of the backup roll into a plurality of dams, and provided with a coating knife portion at the lower end, and stored in the plurality of dams Each of the plurality of dams is provided with a supply passage for supplying the paint and the like to the plurality of dams. A regulating plate for partitioning between the dam portion and the rear dam portion is provided, and a communication portion for communicating the front and rear dam portions is provided on the regulating plate, and the supply passage is opened to the rear dam portion so that paint or the like is opened. In a multi-layer coating device for dam-type paint or the like supplied to the rear dam portion, a supply passage is provided so as to be able to reciprocate in the width direction of the support. Multi-layer coating equipment.

In the present invention, the support is a coated paper,
Coated film, flexible support such as metal foil,
Or, it is a general term for a flexible sheet-like strip or web that is continuously conveyed.

[0016]

According to the present invention, the inside of each dam divided by the dividing wall is further divided back and forth by the regulating plate, and paint and the like are supplied to the rear dam of the divided dam. Paint, etc. in the dam on the rear side of the partitioned dam flows downward as a whole, and it is sent into the dam in the front of the partitioned dam, and As a result, the paint or the like stored in the partitioned dams does not stay in the dam, and coating unevenness of the paint or the like based on the stay does not occur.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a sectional view showing an outline of a multilayer coating apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an outline of the multilayer coating apparatus of FIG.

A backup roll 42 composed of a roll that rotates opposite to a fixed member 41 composed of a roll is provided.
A partition 44 forms a dam 44 having a bottom at a contact portion 43 (although there is some space) between the fixing member 41 and the backup roll 42. Dam 44 is divided into a plurality of dams 44 _1, 44 ₂ as will be described later, below the dam 44
_A paint 46 and the like are supplied to and stored in ₁ . The paint 46 is a paint having a relatively low viscosity. A support 47 is wound around the backup roll 42, and the support 47 is immersed in a paint 46 (and a paint 50 described below) in the dam 44 and transported. A dividing wall 48 is provided in the dam 44 so that a portion of the dam 44 above the backup roll 42 can be divided into a plurality of dams 44.
_1, is divided into 44 _2. The dividing wall 48 is provided with a coating knife portion 49 at the lower end thereof, and the tip of the coating knife portion 49 is provided with an interval (H1) between the dividing knife 48 and the support 47 wound around the backup roll 42. The interval (H1) determines the thickness of the layer of the paint 50 or the like applied on the support 47. Partition body 45
Are front and rear walls 45 provided before and after in the transport direction of the support 47.
₁ and side walls 45 ₂ provided at both ends in the width direction of the support 47.
And the dividing wall 48 includes a partition 45
And it is detachably inserted fitted into the guide groove 51 formed in the side wall 45 ₂ of.

The present invention includes a structure in which the coating knife portion itself is enlarged to have a structure integrated with the dividing wall.

Further, as will be described later, the number of divided walls is not limited to one, and an appropriate number of divided walls can be provided as long as the number is one or more.

[0021] Here, a relatively low viscosity of the paints 46 is reservoir to the dam 44 ₁ of the lower, but paints 50 of relatively high viscosity above the dam 44 ₂ is the reservoir, the present invention Is not limited to the viscosity of the paint used.

The configuration up to this point is the same as that of the multi-layer coating apparatus for coating a dam-type paint, etc., which has already been proposed. However, in the present invention, a paint or the like retention prevention structure shown in FIG.
In other words, the dam 44 ₁ is provided regulating plate 52, the dams 4
4 and partitions ₁ to ₁ and the dam portion 44 in front of the conveying direction of the support 47 and the rear of the dam portions 44 ₁ B. Control plate 52
The mounting structure is not particularly limited, it is desirable that the structure for attaching the dividing wall 48 and is passed through the guide grooves formed in the side wall 45 ₂ similarly compartment 45. The restricting plate 52 is provided with a communication portion 53 for communicating the front dam portion 44 ₁ A and the rear dam portion 44 ₁ B.
Further, the regulating plate 54 in the dam 44 ₂ kicked, the dam 44 ₂
Is divided into a dam portion 44 ₂ A on the front side in the transport direction of the support 47 and a dam portion 44 ₂ B on the rear side. The mounting structure of the regulating plate 54 is not particularly limited, either.
It is desirable to 8 and is inserted into the guide grooves formed in the side wall 45 ₂ similarly partition body 45 and structure for mounting to. The restricting plate 54 is also provided with a communication portion 55 that allows the front dam portion 44 ₁ A and the rear dam portion 44 ₁ B to communicate with each other.
In this embodiment, the communicating portions 53 and 55 are
Lower end and fixing member 41 or backup roll 42
Is formed as an interval portion between. However, the configuration of the communicating portions 53 and 55 is not limited to the above-described embodiment, and a structure in which holes are formed in the regulating plates 52 and 54, and a structure in which slits are formed in the lower ends of the regulating plates 52 and 54 in a comb shape. , Etc. Further, the regulating plate 52,
Each rear dam section 44 partitioned by 54
₁ B, 44 ₂ for replenishing paint or the like 46 and 50 in B, the supply passage 56 and 57 of the paint or the like is provided. The supply passages 56 and 57 are attached to a suitable reciprocating means so that they can reciprocate in the width direction of the support 47.

The operation of the multilayer coating apparatus according to the present invention having the above-described structure will be described. Support 47 which is wound backup roll 42 wound is immersed in a paint or the like 50 in the dam 44 _2, apart by coating knife portion 49 (H
A paint 50 or the like having a thickness of only 1) is applied, and a lower application layer 58 is formed. Here, the thickness of the lower coating layer 58 is determined by the distance (H 1 ) between the tip of the coating knife section 49 and the support 47. Support 47 the coating layer 58 of the lower side is formed through the tip of the coating knife 49 is then immersed in a paint or the like 46 of the dam 44 _1.
Support 47 above the coating layer 59 is formed on the lower side of the coating layer 58 as it passes through the spacing (H2) between the fixed member 41 and the lower coating layer 58 of the dam 44 _1, The two-layer coated support 47 coated with the lower coating layer 58 and the upper coating layer 59 is guided by the backup roll 42 and exits. Here, the thickness of the upper coating layer 59 also depends on the distance between the fixing member 41 and the lower coating layer 58 (H
2).

Next, each of the dams 44 ₁ A, 44 ₁ B, 44 ₂ A, 44 ₂ B divided by the regulating plates 52, 54.
The flow of paint and the like inside will be described. The paint 46 supplied into the dam 44 ₁ B by the paint supply passage 56.
Flows downward along the regulating plate 52 as shown by PB in FIG.
₁ Flow into A. The paint in the dam 44 ₁ A, etc. 4
The flow 6 is a flow that rotates and flows as a whole, as indicated by PA in the figure, and eventually there is no portion where the paint 46 or the like stays as a whole. The flow state also occurs in the dams 44 ₂ A and 44 ₂ B separated by the regulating plate 54 in the front and rear as shown by QA and QB in the drawing, whereby the paint and the like also exist in the dams 44 ₂ A and 44 ₂ B. Stagnation is eliminated.

Next, since the paints 46 and 50 supplied from the supply devices 56 and 57 are relatively viscous, the liquid level is highest at the position discharged from the supply devices 56 and 57. The liquid level gradually decreases as it spreads to other parts. In the present invention, the supply devices 56, 5
7 since reciprocated in the width direction of the support 47, the liquid level of the paint or the like 46 in dam 44 ₁ B is made uniform in the width direction of the support 47, coating unevenness is reduced also in this respect. Similarly, the liquid level of the paint 50 and the like 50 in the dam 44 ₂ B is also made uniform in the width direction of the support 47, and the coating unevenness is reduced.

In the embodiment described above, the material of the coating knife portion 49 is preferably made of stainless steel or a metal plated with chromium, but the present invention is not limited to such a material. Absent. Further, the thickness of the coating knife portion 49 is 2 mm to 4 m from the surface of the cutting edge polishing property, the stability of the cutting edge dimension, and the coating surface.
m is preferable, but the present invention is not limited to such dimensions. Further, the cutting edge of the coating knife portion 49 is preferably about 0.5 mm wide, but the present invention is not limited to this value. Further, the shape of the cutting edge of the coating knife portion 49 is selected from appropriate knife shapes such as an arc knife, a hook knife, a weir plate knife, etc., based on properties of the paint and the like (viscosity, pigment addition ratio, etc.). However, the present invention is not limited to this.

It is desirable that the dividing wall 48 is mounted in a direction normal to the backup roll 42, and that the dividing wall 48 is inclined with respect to a vertical line, that is, the groove angle of the guide groove 51 (θ in the drawing). Is preferably about 30 to 60 degrees.

The dividing wall 48 (the coating knife section 4)
Mounting of the side wall 45 ₂ of 9 including) is not intended to be limited to the structure that is guided by the guide groove 51 formed in the side wall 45 ₂ as in the illustrated embodiment, the guide grooves in the side wall 45 ₂ the structure for installing protruding, it is possible to structure such that installing the guide portion on the side wall 45 ₂ partially projecting to a different guide part structure for the dividing wall 48 detachably fitted.

Furthermore, the backup roll can be rotated in the reverse direction to reverse the direction in which the support is transported.
In this case, a relatively high-viscosity paint or the like can be applied on a relatively low-viscosity paint or the like.

The material of the partition body 45 is not particularly limited, but it is more preferable that the partition body 45 be made of fluororesin from the viewpoint of the running stability of the support 47.

The above-described dam-type coating device for coating paint is an embodiment of the present invention, and the present invention is not limited to the dam-type coating device for coating material and the like in the above embodiment. . Structure shown in FIG. 3 is a schematic cross-sectional view of a coating apparatus paints showing another embodiment of the present invention, a dividing wall in this embodiment is a two dividing walls 61 _1, 61 ₂ Thus, three dam portions are formed. From the lower dam portion, the paints and the like are relatively low-viscosity paints 62 ₁ , relatively high-viscosity paints 62 ₂ , and relatively high-viscosity paints 6.
2 _3, in which has become. Each dam portion is provided with a regulating plate 63 ₁ , 63 ₂ , 63 ₃ to partition each dam portion forward and backward. The other structure is the same as that of the coating apparatus shown in FIGS.
According to this embodiment, it is possible to apply three layers of paint or the like with one coating device without stagnation of paint or the like. In addition, an arbitrary number of multi-layer coatings can be performed depending on the number of divided walls. In this case, as described above, a regulating plate is provided at each dam part to partition each dam part back and forth.

With respect to the embodiment shown in FIGS. 1 and 2 described above, a description will be given of the result of an experiment in which the specifications are determined. A polyethylene terephthalate film was used as the support 47 and applied to two layers, a lower layer and an upper layer. The paint and the like were applied by using an adhesive composed of a mixture of phenol and epoxy containing polyamide as a main component, and adding a coloring pigment to the lower layer or the upper layer. As the application conditions, the diameter of the fixing member 41 and the backup roll 42 was 250 mm, the distance between the support 47 and the fixing member 41 was fixed at 100 μm, and the lower layer was 5 μm, 10 μm, and 15 μm in dry film thickness. , 20 μm, and 25 μm, the coating was performed by adjusting the distance (H1) between the support 47 and the coating knife 49. Other conditions are as follows. Thickness of support (μm) 38 Width of support (mm) 500 Plate thickness of partition (mm) 10 Inner width of dam (mm) 470 Cut groove angle θ (degree) 34 Coating knife (divided wall) length ( mm) 480 Coating knife thickness (mm) 3 Coating knife tip width (mm) 0.5 Coating knife tip angle (degree) 45 Plate thickness of regulating plate 52 (mm) 3 Same tip width (mm) 0.5 Same tip Angle (degree) 45 Thickness (mm) of regulating plate 54 3 Same tip width (mm) 0.5 Same tip angle (degree) 45 Coating speed (m / min) 15 Adhesive concentration of lower layer (%) 36 Lower layer adhesive viscosity (cp) 690 Upper layer adhesive concentration (%) 43 Upper layer adhesive viscosity (cp) 970

As a result of conducting an experiment under the above conditions, data as shown in Table 1 were obtained. Note that Comparative Example 1 shown in Table 1 shows a case where processing was performed with a structure in which the regulating plate 54 was omitted in Example 1, and the other structures were the same as those in Example 1. Comparative Example 2 shows a case where processing was performed with the structure in which the regulating plate 52 was omitted in Example 6, and the other structures were the same as those in Example 6.

[0034]

[Table 1]

As is clear from Table 1, the multilayer coated products obtained in the present invention (Examples 1 to 6) are all compared with the multilayer coated products obtained in Comparative Examples 1 and 2. And
There is no uneven coating, and there is no mixing of the coating surface of the lower layer and the coating material of the upper layer, and the coating state is good, and the lower layer and the upper layer have a uniform coating surface. It can be seen that it has been obtained.

[0036]

According to the present invention described above, the following effects can be obtained. First, paint and the like stored in one of the dams separated by the regulating plate flow downward as a whole,
Since it flows into the other dam through the communication passage and rotates and flows without the other dam, the paint and the like have no stagnation and are uniformly mixed. For this reason, uneven coating on the support is reduced.

Also, by setting the area of the communicating portion at the lower end of the regulating plate small, the liquid level of the other dam portion decreases,
Mixing of paint and the like stored in the upper dam and the lower dam is reduced, and coating unevenness due to the mixing is reduced.At the same time, even when compatibility is relatively poor, gelation can be suppressed. it can. In addition, the contact time between the lower paint or the like and the upper paint or the like is shortened, and the uneven coating is also reduced on this surface.

Further, when the area of the communicating portion is reduced, the application state of the application surface can be visually checked, so that the defective rate is reduced and the productivity is improved.

Further, since the dam is partitioned by the regulating plate, the amount of paint and the like to be stored can be reduced by that amount, and even if a small amount of paint is used, stable quality can be efficiently obtained and the production efficiency is improved. .

Further, even when the paint or the like is changed, the cleaning operation can be easily performed without lowering the operation efficiency because the apparatus structure is simple.

In addition, it is possible to apply a coating material or the like in multiple layers on a support with a single coating device using a coating device for coating a dam type paint or the like. It can be applied in multiple layers on a highly viscous paint or the like.

Since the support is continuously conveyed while being immersed in the paint or the like in the dam, there is no air entrainment in the coating film, and transfer defects are reduced.

Further, it becomes possible to attach and detach the dividing wall having the coating knife accurately and easily while maintaining the interval with the support.

Further, attachment, detachment and positioning of the regulating plate are also facilitated.

Further, when the supply device of the paint or the like is reciprocated in the width direction of the support, the liquid level of the paint or the like in the dam is made uniform in the width direction of the support, and in this regard, the coating unevenness is reduced. Will be done.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a coating apparatus showing an embodiment of the present invention.

FIG. 2 is a perspective view of the coating apparatus of FIG. 1;

FIG. 3 is a schematic sectional view of a coating apparatus showing another embodiment of the present invention.

FIG. 4 is a schematic sectional view showing an example of a conventionally known multilayer coating apparatus.

FIG. 5 is a schematic sectional view showing an example of a coating device for coating a dam type paint or the like which has already been proposed by the present applicant.

FIG. 6 is a schematic cross-sectional view showing an example of a multilayer coating apparatus for dam-type paint or the like that has already been proposed by the present applicant.

FIG. 7 is a schematic perspective view of FIG. 6;

FIG. 8 is a schematic cross-sectional view showing an example of a coating apparatus for coating a dam-type paint or the like that has already been proposed by the present applicant.

DESCRIPTION OF SYMBOLS 41 Fixing member 42 Backup roll 43 Contact part 44 Dam 45 Partition body 46 Paint etc. 47 Support 48 Partition wall 49 Coating knife part 50 Paint etc. 51 Guide groove 52 Regulator plate 53 Communication part 54 Regulator plate 55 Communication part

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Mitsuru Washinasu 3-1, Yomomoba-cho, Shizuoka-shi, Shizuoka Pref. JP-A-60-179205 (JP, A) JP-A-3-59065 (JP, U)

Claims (5)

(57) [Claims] 1. A fixing member, a backup roll opposed to the fixing member at an interval, and a partition formed on an upper portion or a side portion of the fixing member and the backup roll to form a dam for storing paint or the like. And a support wound around the backup roll, immersed in paint or the like in the dam, and continuously conveyed through an interval between the fixing member and the backup roll, and wound around the backup roll. The upper part of the backup roll is divided into a plurality of dams, and a coating knife part is provided at the lower end.
A plurality of divided walls, different paints and the like stored in the plurality of dams, and a supply passage for supplying paints and the like to the plurality of dams. The support is coated with a plurality of paints and the like. In a multi-layer coating device such as a dam type paint, a regulating plate is provided which partitions the plurality of dams into a front dam portion and a rear dam portion located before and after in the support transport direction, and the regulating plate includes A communication portion for communicating the front and rear dam portions is provided, and the supply passage is opened to the rear dam portion to supply paint and the like to the rear dam portion. Multi-layer coating equipment. 2. The partition has a rectangular shape including front and rear walls extending in the width direction of the support and side walls at end portions of the support.
2. A partition wall is provided so as to be detachably inserted into a guide portion formed on a side wall of the partition body.
Multi-layer coating device for dam type paint as described. 3. A coating knife part formed integrally with a dividing wall.
Multi-layer coating device for dam type paint as described. 4. A multi-layer coating of paint or the like of the dumb according to any one of claims 1 to 3, characterized in that thus provided between the lower end and the backup roll of the communicating portion restriction plate Engineering equipment. 5. A multi-layer coating of paint or the like of the dumb according to any one of claims 1 to 4 supply passage, characterized in that the thus provided reciprocatingly in the width direction of the support apparatus.