JP2015231613A - Nozzle for coating peel paint, housing material and coating method of peel paint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle for coating a peel paint, capable of coating the peel paint to a predetermined position of a member to which the paint is coated, easily, especially, coating the peel paint to an end face of a surface of a housing material as the member to which the paint is coated, and to provide the housing material and a coating method of the peel paint.SOLUTION: Provided is a nozzle for coating a peel paint to a coating surface of a member 1 to which a peel paint 5 is coated, the peel paint being discharged from a discharge port 4a2 of a discharge part 4a. The nozzle further comprises a trace guide piece 4c, extending closer to a direction where the peel paint 5 is discharged than to the discharge part 4a, and guiding the movement of the nozzle 4 for coating the peel paint.

Description

  The present invention relates to a release coating application nozzle, a building material, and a release coating application method, and more particularly, to a building material such as a tile that uses a release coating for masking.

  Conventionally, a release coating application nozzle has a structure in which a through hole is provided in the center of a substantially conical axial direction, the release coating is introduced from one opening of the through hole, and the release coating is discharged from the other opening. It was.

In addition, although masking is not performed using release paint, masking tape is attached to the tiles to prevent the joint material from adhering to the tiles, etc. There was one that injected the material and finally peeled off the masking tape.
(For example, refer to Patent Document 1).

Furthermore, although it is not a peeling paint, a masking agent is applied to ensure insulation on the printed circuit board, and a predetermined interval is provided between the printed board and a flat member having a discharge port, and masking is performed from the discharge port. Some agents are injected into this gap and applied using the capillary action. Further, in order to stably obtain the gap, a protrusion that contacts the surface of the printed circuit board is provided.
(For example, refer to Patent Document 2).

Registered Utility Model No. 3027793 (paragraph 0027, FIG. 6) Japanese Patent Laying-Open No. 2003-10663 (paragraph 0009, FIG. 2)

  However, conventionally, when applying a release coating, an operator applies the nozzle at a desired position. For this reason, adjustment of the position to apply, especially when applying to the end of the surface of the member to be applied, takes time and effort to adjust the position of application, and the application work is complicated.

  Moreover, in patent document 1, since a tape is used for masking as a release material, not only is it time-consuming to apply the tape, but also positioning thereof is difficult. There is a problem that a gap is easily generated in the overlapping portion, and that it is difficult to closely adhere to a building material such as an uneven tile, and a gap is likely to be generated.

  Moreover, in patent document 2, it aims at insulation and peeling of the coating material was not considered. Furthermore, it relates to a printed circuit board, and is not intended to be applied to the end portion of the surface of the member to be coated, and is not intended to be applied to a material having irregularities on the surface of a building material or the like. Even if an attempt is made to apply a coating material to the end of the surface of the member to be coated using the protrusion described in Patent Document 2, the edge of the protrusion and the edge of the surface of the member to be coated are positioned. Since this is necessary, the operation of coating the end of the member to be coated is difficult.

  The present invention has been made paying attention to such a problem, and can easily apply the peeling paint to a predetermined position of the member to be coated, particularly at the end of the surface of the building material as the member to be coated. It is an object of the present invention to provide a release coating application nozzle that can be applied, a building material applied with the release coating using the nozzle, and a release coating application method.

In order to solve the above-mentioned problems, the present invention provides a release coating application nozzle for applying release coating discharged from a discharge port of a discharge unit to an application surface of a member to be applied, wherein the release coating is applied more than the discharge unit. A trace guide piece that extends in the discharge direction and guides the movement of the release coating application nozzle is provided.
According to this feature, the peeling paint can be easily applied to a predetermined position of the member to be applied.

Further, the trace guide piece has a convex portion on a side portion thereof.
According to this feature, tracing can be smoothly realized.

Further, the trace guide piece is characterized by having a cut for adjusting a length by cutting a part of the trace guide piece.
According to this characteristic, it can be used corresponding to a member to be coated having various thicknesses.

Furthermore, it is provided with an inclined portion that extends incline with respect to the direction in which the release coating is discharged and regulates the swelling of the release coating discharged from the discharge port.
According to this feature, it is easy to suppress interference with other members after application.

Furthermore, it is characterized by comprising a seal portion that continues to the inclined portion and extends in a direction in which the release paint is discharged, and restricts leakage of the release paint.
According to this feature, it is possible to suppress leakage of the release paint outside the application region of the member to be applied.

Furthermore, it is characterized by having a height guide piece that extends in the direction in which the release paint is discharged and guides the movement of the release paint application nozzle by its tip.
According to this feature, the thickness of the release paint to be applied can be easily adjusted.

Further, the height guide piece has a portion provided on the opposite side through the discharge portion, and the portion, the height guide piece, and the discharge portion form a bridge-shaped space. Yes.
According to this feature, it is easier to adjust the thickness of the release paint to be applied.

Furthermore, a back-leveling piece is provided which extends in a direction intersecting with the direction in which the release coating material is discharged from the discharge section and smoothes the thickness of the discharged release coating material.
According to this feature, the thickness of the applied release coating can be adjusted more reliably.

Further, the building material is characterized in that the release coating is applied to the end of the surface using the release coating application nozzle.
According to this feature, it is possible to provide a building material in which the peeling paint is applied to a predetermined position.

Further, the method of applying the release coating is characterized in that the release coating is applied to the application surface of the member to be applied using a release coating application nozzle.
According to this feature, the peeling paint can be easily applied to a predetermined position.

  Here, the “peeling paint” in the present invention means a paint that can be peeled off by applying an external force after being applied and dried. The “piece” includes a piece extending in one direction from a certain part, for example, a rib or a protrusion. Further, “discharge” means a material that discharges the release paint, and the flow rate and flow rate are not limited. Further, the “guide” means that the release coating application nozzle is moved with reference to a specific part of the member to be applied when the release coating is applied.

(A) is a front view which shows the state which applies a peeling paint to a tile with the peeling paint applicator in Example 1, (b) is a top view similarly. It is a perspective view which shows the nozzle for peeling paint application of the peeling paint applicator of FIG. (A) is a front view of the nozzle for peeling paint application | coating of the peeling paint applicator of FIG. 1, (b) is a bottom view similarly. It is a perspective view which shows the state which applied the peeling coating material to the tile with the peeling coating material application tool of FIG. It is the VV sectional view taken on the line of the tile in FIG. It is a front view which expands and shows the height guide piece of the nozzle for peeling paint application in Example 2. FIG. (A) is a front view of the nozzle for peeling paint application in Example 3, (b) is also a bottom view. (A) is a front view which shows the state which applies a peeling paint to a tile with the peeling paint applicator in Example 4, (b) is also a top view. 6 is a bottom view of a release coating application nozzle in Example 4. FIG. It is explanatory drawing explaining construction of the joint between the building materials in Example 5. FIG. It is a top view of the building material stack which laminated | stacked the building material in Example 6. FIG. It is the XII-XII sectional view taken on the line in FIG.

  A mode for carrying out a release coating application nozzle, a building material, and a release coating application method according to the present invention will be described below based on examples.

Example 1 will be described with reference to FIGS. 1 to 5.
The release paint applicator 2 contains a release paint 5 inside, a paint container 3 that can be deformed by an external force to discharge the release paint 5, and a release paint application that is detachably attached to the paint container 3 by screwing. It consists of a nozzle 4 (hereinafter also simply referred to as nozzle 4).

  In order to apply the release coating 5 to the tile 1, the release coating applicator 2 is moved in the direction of arrow A in FIG. 1B with a trace guide piece 4 c described later applied to the side surface 1 </ b> B of the tile 1. During this movement, the peeling paint 5 discharged from the paint container 3 is applied to the end 1A1 of the surface 1A of the tile 1 by adjusting the force for gripping the paint container 3. FIG. 4 shows a state in which the release coating 5 is applied to the four end portions 1A1 of the surface 1A of the tile 1, and the release coating is not applied to the central portion 1A2.

  The nozzle 4 will be described with reference to FIGS. The nozzle 4 is formed by integrally forming a mounting portion 4A and a coating portion 4B with resin. A female screw is provided on the inner periphery of the mounting portion 4 </ b> A and is screwed with a male screw at the tip of the paint container 3. The inside of the mounting portion 4A is a cavity and communicates with the cavity inside the application portion 4B. This cavity (see the broken line in FIG. 3) serves as a flow path for the release coating 5.

  The application part 4B is a trace guide piece 4c for abutting and guiding a discharge part 4a for discharging the peeling paint 5 from the discharge port 4a1, a corner expansion preventing inclined surface 4b (hereinafter also simply referred to as an inclined surface 4b), a tile and the like. The leveling pieces 4g and 4g, the height guide piece 4h, and the like are integrally formed.

  The discharge port 4a1 of the present embodiment is substantially rectangular, and a “B” -shaped flat end surface 4a2 is formed around the discharge port 4a1. The inclined surface 4b is inclined and connected from the flat end surface 4a2, and the leveling pieces 4g and 4g are provided before and after the discharge port 4a1 in the moving direction of the release paint applicator 2, and the discharge side surface of each leveling piece 4g. 4g1 is connected to form the same plane as the flat end face 4a2. Furthermore, the inner surface of the height guide piece 4h is continuous to the flat end surface 4a2. Further, the vertical surface seal portion 4d extends in a direction perpendicular to the flat end surface 4a2 from the inclined surface 4b.

  The trace guide piece 4c has a leg shape extending downward, guides movement in the direction of arrow A (FIG. 1 (b)) by contacting the side surface 1B of the tile 1, and has a vertical surface seal portion 4d on the top. The vertical surface seal portion 4d contacts the side surface 1B of the tile 1 and seals the leakage of the release coating 5 toward the side surface 1B.

  Further, contact guide protrusions 4e and 4e are provided at the center and lower part of the trace guide piece 4c. As shown in FIG. 3, the tops of the contact guide protrusions 4e, 4e and the vertical surfaces of the vertical surface seal portions 4d are located on a virtual surface E parallel to the direction in which the release coating 5 is discharged.

  A plurality of height adjusting cut portions 4f, 4f,... Are provided at the central portion and the lower portion of the trace guide piece 4c.

  The leveling pieces 4g and 4g are formed so as to extend in two directions orthogonal to the main surface of the application unit 4B (two directions orthogonal to the paper surface in FIG. 1A) at the upper part of the discharge unit 4a.

  2 and 3, a height guide piece 4h extending in the direction in which the release coating 5 is discharged on the opposite side of the inclined surface 4b across the discharge portion 1a and having a length H from the discharge portion 1a. Is provided.

Next, the release paint 5 will be described.
The release paint 5 is preferably an aqueous emulsion resin paint from the viewpoint of handling properties. As an example, a water-based emulsion resin is 75 to 90 wt%, a leveling agent is 4.0 wt%, an antifoaming agent is 0.2 wt%, a thickener is 1.0 wt%, and a material mainly containing a pigment is 4.8. Those consisting of ˜19.8 wt% are shown in Table 1. In addition, wt% means weight%.

  Water-based emulsion resins include polystyrene, styrene-butadiene copolymer, styrene-acrylic copolymer, ethylene vinyl acetate copolymer, acrylic ester, acrylic ester copolymer, vinylidene chloride, polyolefin wax such as polyethylene and polypropylene , Silicone, urethane, acrylic, acrylic urethane and the like can be used, but are not particularly limited thereto. The leveling agent, antifoaming agent, and thickener are not particularly limited, but known ones can be used.

  A known material can be used as the material mainly composed of a pigment. Examples of white pigments that can be used include titanium oxide, zinc oxide, alumina, silica, clay, calcium carbonate, barium sulfate, urethane, acrylic, and acrylic urethane. Examples of black pigments that can be used include iron oxide and carbon black. In the case of using a black pigment, the lower limit is about 4.8 wt% when using a black pigment, and the upper limit is about 19.8 wt% when using a white pigment. May be an intermediate ratio between them.

  As described above, since the release coating 5 is applied to the end portion 1A1 of the surface 1A of the tile 1 and used as masking, a complicated operation of applying a masking tape is unnecessary.

  Further, since the trace guide piece 4c is provided, the peeling paint can be easily applied to the end portion 1A1 of the surface 1A of the tile 1 by tracing and guiding the side surface 1B of the tile 1.

  Moreover, since the convex parts 4e and 4e made to contact the side surface 1B of the tile 1 have a convex shape, the trace in the arrow A direction (FIG. 1B) becomes smooth.

  In addition, since the length of the trace guide piece 4c can be adjusted by cutting the plurality of trace guide pieces 4c with an appropriately selected cut portion 4f, it is possible to cope with a case where the thickness of the tile 1 is different.

  Further, since the tip surface 4h1 of the height guide piece 4h is applied in contact with the surface 1A of the tile 1, the thickness of the release coating 5 applied to the surface to be coated is set to the thickness (long) of the height guide piece 4h. Can be easily formed.

  Further, in addition to the height direction guide by the height guide piece 4h, the discharge amount 4a, the inclined surface 4b, and the height guide piece 4h provide a coating amount adjusting space 4i (FIG. 3 (a) as a bridge-shaped space. )), The thickness of the applied release coating 5 can be easily adjusted. Further, since the vertical length of the inclined surface 4b is H, the cross section of the applied release coating 5 (the cross section perpendicular to the moving direction of the release coating applicator 2) is as shown in FIG. Become.

  Further, the vertical surface seal portion 4d in FIG. 3A is slightly raised, and a bridge-like space is formed by the discharge portion 4a, the inclined surface 4a, the height guide piece 4h, and a part of the vertical surface seal portion 4d. It may be formed. In this modification, the cross section of the applied release coating 5 is as shown in FIG.

  Further, as a further modification of the inclined surface 4b, the shape thereof may be a curved surface. FIG. 5C is a cross section of the applied release coating 5 when the inclined surface is formed by a curved surface.

  Moreover, the release coating 5 provided on the tile 1 formed a taper (FIGS. 5A to 5C) in which the outer side was thinner than the center side with respect to the thickness. For this reason, the joint material injection tool for injecting the joint material is less likely to come into contact, and the workability is good.

  Further, the release coating 5 having a cross-sectional shape shown in FIG. 5A is preferable from the viewpoint that the above-described effects are excellent and the release coating 5 does not leak to the end surface 1B side of the tile 1. On the other hand, since the release coating 5 having a cross-sectional shape shown in FIGS. 5B and 5C has a thicker end than the release coating 5 shown in FIG. is there. Also, the release coating 5 of FIG. 5C has a curved outer surface, so that there is no point where stress is concentrated at the time of peeling, and the structural strength of the taper portion of the release coating 5 is relatively high and the integrity can be maintained. Therefore, it has excellent peelability.

  Further, the protruding piece 4b positioned at the rear of the application direction can suppress the protrusion of the discharged release coating 5. In addition, since the leveling pieces 4g and 4g are provided in two directions, the application direction is exerted in any direction (the arrow A in FIG. 1 (b) and the opposite direction) to suppress the protrusion.

  Further, since the release coating 5 is a coating, particularly a coating mainly composed of a water-based emulsion, the masking can be formed by application, and the masking operation is simpler than the masking tape, and It can be easily applied to the end 1A1 of the surface 1A of the tile 1 without a gap. In addition, even when the tile surface has irregularities, it can be covered without gaps when applied, and compared to the masking tape, even if irregularities exist on the surface 1A, there are few gaps.

  Here, the building material such as the tile 1 may have irregularities on the surface in order to improve the design properties, but most of the irregularities are less than 0.1 mm, and most are 0.5 mm or more. On the other hand, in order to peel off the applied paint after drying, if the thickness at the time of coating (thickness before drying) is 0.5 mm or more, preferably 1 mm or more, it may be broken when peeling. There is little and releasability is good.

  In addition, if the thickness at the time of application is too thick, it is difficult to apply uniformly, especially when it is applied to the application surface in the vertical direction, dripping tends to occur, it takes time to dry, and the waste of the release paint increases. From the above, the thickness at the time of application is preferably 0.5 mm or more and 3.0 mm or less. The release coating 5 of the present invention is dried within a few minutes to a few hours after application, depending on the material and temperature.

  Further, when the release coating 5 has the ratio shown in Table 1, various colors, for example, black, yellow, red, green, blue, white, or an intermediate color thereof, or a translucent one can be provided.

  A second embodiment will be described with reference to FIG. The shape of the tip of the height guide piece 4h is different from that of the first embodiment. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  As shown in FIG. 6, the height guide piece 4h has an inner surface 4h1 on the discharge portion 4a side, a curved surface 4h2 at the tip continuous from the inner surface 4h1, a slope 4h3 from the curved surface 4h2, and an outer surface 4h4 from the slope 4h3.

  Since the height guide piece 4h is tapered and the tip thereof is a curved surface 4h2, the surface 1A of the tile 1 can be smoothly slid when the release paint 5 is applied by the release paint applicator 2.

  A third embodiment will be described with reference to FIG. In the first embodiment, a second height guide piece 4j is added instead of the one leveling piece 4g. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  As shown in FIG. 7, the second height guide piece 4j is provided in the vicinity of the inclined surface 4b on the side opposite to the rear leveling piece 4g. The height H of the second height guide piece 4j is the same as the height H of the height guide piece 4h. The tip of the second height guide piece 4j is formed by a curved surface 4j1.

  Thus, since the height direction is regulated by the pair of height guide pieces 4h and the second height guide pieces 4j with the discharge portion 4a interposed therebetween, adjustment of the thickness when applying the release coating 5 is performed. Becomes easy.

  Since at least one member for guiding the height is sufficient, only the second height guide piece 4j may be used instead of the height guide piece 4h.

  A fourth embodiment will be described with reference to FIGS. Unlike the first embodiment, a jig 6 for performing a trace guide is used. In addition, since the structure of what attached | subjected the same code | symbol is the same as that of Example 1, the description is abbreviate | omitted.

  With reference to FIGS. 8 and 9, the outer shape of the nozzle 4 viewed from the plane and the bottom is configured to be larger than that of the paint container 3. A trace guide piece 4k is formed above the slope portion 4b and perpendicular to the axial direction of the paint container 3 and extending in a direction perpendicular to the opening 4a1. The guide jig 6 includes a gripping part 6a and a guide part 6b.

  In order to apply the release coating 5, the guide surface 6 c of the guide portion 6 b is brought into contact with the side surface 1 B of the tile 1. Thereafter, the guide surface 4m of the trace guide piece 4k is brought into contact with the guide surface 6c. In this state, the release paint applicator 2 can be moved in the direction along the side surface 1B of the tile 1 (the direction of the arrow A in FIG. 1B) to apply the release paint 5.

  A fifth embodiment will be described with reference to FIG. Example 5 explains a state where joints are applied between the tiles 1 and 1 to which the release paint 5 is applied by the release paint applicator 2 of Example 1. In addition, since the structure of what attached | subjected the same code | symbol is the same as that of Example 1, the description is abbreviate | omitted.

  Referring to FIG. 10, by pushing the piston at the bottom of the main body of the joint material injection tool 7, the joint material 8 is discharged from the tip of the nozzle, and the joint material 8 is injected into the gap between the tiles 1 and 1.

  Here, since the composition of the release coating 5 is shown in Table 1, it is possible to prepare release coatings 5 of various colors by changing the kind and ratio of the pigment. Note that the color of the release coating 5 is almost the same before and after drying.

  When the color of the release coating 5 after drying is different from the color of the surface 1A of the tile 1, the boundary between the release coating 5 serving as a masking material and the surface 1A of the tile 1 becomes clear. As a result, the operator who injects the joint material 8 can easily suppress the joint material 8 from adhering to the surface 1A of the tile 1. In addition, if the color of the release paint 5 and the joint material 8 are different, it becomes easy to grasp the amount of leakage of the joint material 8 to the release paint 5 side when the joint material 8 is injected, and the joint 1 is applied to the surface 1A of the tile 1. It becomes easy to suppress that the material 8 adheres.

  The “different color” may be a color that allows an operator to easily determine that the color is different, and may be a value in which at least one of hue, lightness, and saturation in the Munsell color system differs by a predetermined value or more. .

  Example 6 will be described with reference to FIGS. Example 6 describes a stack in which tiles 1 to which release paint 5 is applied by the release paint applicator 2 of Example 1 are stacked. In addition, since the structure of what attached | subjected the same code | symbol is the same as that of Example 1, the description is abbreviate | omitted.

  Referring to FIGS. 11 and 12, the end portion 1 </ b> A <b> 1 of the surface 1 </ b> A of the tile 1 to which the release paint 5 is applied is applied with the release paint 5, and the central portion 1 </ b> A <b> 2 where the release paint 5 is not applied. Is provided with a spacer 9 having a thickness t9. The thickness t9 of the spacer 9 is thicker than the thickness t5 of the release coating 5 (t9> t5).

  Therefore, even if the tiles 1 are stacked, the release coating 5 does not come into contact with the back surface of the upper tile 1 or the like. Therefore, the tile 1 can be dried after being applied with the release coating 5 and the work space can be effectively utilized. Moreover, even if it transports in the piled-up state, it can prevent that the peeling paint 5 is damaged or peels. In addition, the spacer 9 should just be provided in the location where five peeling paints are not apply | coated, and the position is not necessarily restricted to center part 1A2.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the case where the member to be coated is a tile has been described. However, the present invention can be applied to a building material such as a flooring material, a door of a vehicle, and the like, and the target of the member to be coated is not limited. Moreover, although the example which uses peeling paint for masking was demonstrated, it does not necessarily restrict to what is used for masking.

  Further, since the discharge port 4a1 is rectangular, it is possible to discharge the release coating 5 evenly in the width direction of the nozzle 4, and it is easy to adjust the film thickness uniformly. In addition, in order to discharge the peeling paint 5 uniformly in the width direction, a plurality of discharge ports may be arranged along a line.

  Moreover, although the example in which the inclined surface 4b is formed continuously from the flat end surface 4a2 of the discharge portion 4a has been described, the inclined surface 4b only needs to have a thin outer thickness of the finally applied release coating 5 (see FIG. From 5), the position where the inclined surface 4b is provided may be a position other than the position where it is continuous with the flat end face 4a2, for example, a position where it is continuous with the rear leveling piece 4g.

  Moreover, although the example which attached the nozzle 4 to the coating material container 3 so that attachment or detachment was demonstrated was demonstrated, the coating material container 3 and the nozzle 4 may be integrally molded. In this case, it is preferable to provide an insertion port for the release paint at the bottom of the paint container 3.

  Further, the example in which the operator uses the peeling paint applicator 2 to which the nozzle 4 is attached has been described. However, the nozzle 4 can also be used by being incorporated in a paint coating apparatus.

  In the first to third embodiments, the trace guide piece 4c is described as having a leg shape, but the lower portion may be omitted from the vertical surface seal portion 4d. In this case, only the vertical surface seal portion 4d is a guide for tracing.

1 Tile (Coating material)
1A Surface 1A1 End 1A2 Center 2 Release paint applicator 3 Paint container 4 Release paint application nozzle 4a Discharge section 4a1 Discharge port 4a2 Flat surface 4b Inclined surface (inclined portion)
4c Trace guide piece 4d Vertical surface seal part (trace guide piece, seal part)
4e Contact guide convex part (convex part)
4f Height adjustment cut (cut)
4g leveling piece 4h height guide piece 4i coating amount adjustment space (bridge-like space)
4j Second height guide piece 4k Trace guide piece 5 Release coating 6 Guide jig 8 Joint material 9 Spacer

Claims (10)

A release coating application nozzle that applies the release coating discharged from the discharge port of the discharge unit to the application surface of the application member,
A release paint application nozzle comprising a trace guide piece extending in a direction in which the release paint is discharged from the discharge unit and guiding movement of the release paint application nozzle.   The release paint coating nozzle according to claim 1, wherein the trace guide piece has a convex portion on a side portion thereof.   The release paint coating nozzle according to claim 1, wherein the trace guide piece has a cut for adjusting a length by cutting.   4. The apparatus according to claim 1, further comprising an inclined portion that extends obliquely with respect to a direction in which the release coating is discharged and regulates the swelling of the release coating discharged from the discharge port. The nozzle for peeling paint application of description.   5. The release paint application according to claim 1, further comprising a seal portion that continues to the inclined portion and extends in a direction in which the release paint is discharged, and regulates leakage of the release paint. nozzle.   6. The release paint according to claim 1, further comprising a height guide piece that extends in a direction in which the release paint is discharged and guides the movement of the release paint application nozzle by a tip portion thereof. Application nozzle.   The height guide piece has a portion provided on the opposite side through the discharge portion, and a bridge-shaped space is formed by the portion, the height guide piece, and the discharge portion. Item 7. A release coating application nozzle according to item 6.   8. A back-running piece that extends in a direction intersecting with a direction in which the release coating is discharged from the discharge portion and that smoothes the thickness of the discharged release coating is provided. The nozzle for release paint application in any one of. The building material which apply | coated the peeling coating material to the edge part of the surface using the nozzle for peeling coating material coating in any one of the said Claims 1 thru | or 8.   A method of applying a release coating, wherein the release coating is applied to an application surface of a member to be applied using the release coating application nozzle according to any one of claims 1 to 8.

Images