JP2999105B2 - Painting method of building board and building board with spot pattern - Google Patents
Painting method of building board and building board with spot patternInfo
- Publication number
- JP2999105B2 JP2999105B2 JP25917693A JP25917693A JP2999105B2 JP 2999105 B2 JP2999105 B2 JP 2999105B2 JP 25917693 A JP25917693 A JP 25917693A JP 25917693 A JP25917693 A JP 25917693A JP 2999105 B2 JP2999105 B2 JP 2999105B2
- Authority
- JP
- Japan
- Prior art keywords
- paint
- building board
- nozzle
- spot pattern
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【0001】[0001]
【産業上の利用分野】 本発明は例えば繊維セメント板
等の建築板の被塗面に斑点模様のある塗装を施す塗装方
法および斑点模様付建築板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating method for applying a coating having a spot pattern on a surface to be coated of a building board such as a fiber cement board, and to a building board with a spot pattern.
【0002】[0002]
【従来の技術】 例えば繊維セメント板等の建築板に斑
点模様の塗装を施し、自然石のような外観を与えること
は意匠的に非常に好ましいことである。従来、建築板に
このような斑点模様の塗装を施すには、塗料の粘度とチ
クソ性を所定の範囲に設定し、かつスプレーガンの被塗
面に対する移動速度およびスプレーガンからの吐出量、
更に被塗面におけるスプレーパターンの径等を所定の範
囲に設定して塗料がスプレーガンから霧化されていない
か殆ど霧化されていない状態で被塗面に吹付ける方法が
提供されている(特開平3−157160号,特開平3
−186381号)。2. Description of the Related Art It is very preferable in terms of design to apply a speckled coating to an architectural board such as a fiber cement board to give an appearance like a natural stone. Conventionally, in order to apply such a spotted pattern coating on a building board, the viscosity and thixotropy of the paint are set within a predetermined range, and the moving speed of the spray gun with respect to the coated surface and the discharge amount from the spray gun,
Further, there is provided a method in which the diameter of a spray pattern or the like on the surface to be coated is set within a predetermined range, and the paint is sprayed from the spray gun onto the surface to be coated in a state where the paint is not atomized or almost not atomized ( JP-A-3-157160, JP-A-3-157
-186381).
【0003】[0003]
【発明が解決しようとする課題】 しかしながら上記従
来方法では、スプレーガンから塗料を被塗面へ霧化され
ていないか殆ど霧化されていない状態で吹付けるために
塗料の粘度、チクソ性、スプレーガンの移動速度、スプ
レーガンからの吐出量、スプレーパターンの径等多くの
ファクターを微妙に調節しなければならず、特に巾広な
被塗面を有する建築板の塗装には莫大な手間を必要と
し、またスプレーガンのノズルも詰まり易く不良品発生
の確率も高かった。However, according to the above-mentioned conventional method, the paint is sprayed from the spray gun onto the surface to be coated in a state where the paint is not atomized or almost not atomized. moving speed of the gun, the discharge amount from the spray gun, it is necessary to adjust the diameters many factors of the spray pattern slightly, in particular the width I wide
The painting of a building board having a surface to be coated required enormous labor, and the nozzle of the spray gun was easily clogged, and the probability of defective products was high.
【0004】[0004]
【課題を解決するための手段】 本発明は上記従来の課
題を解決するための手段として、ベル型塗装機(1) のノ
ズル(3) 回転速度を300〜2500m/分に設定して
粘度を30〜80 cps/25℃に調節した塗料を分散さ
せることによって被塗面に塗装を行なう塗装方法を提供
し、更に該塗装方法によって塗装された斑点模様付建築
板および多色斑点模様付建築板を提供するものである。According to the present invention, as a means for solving the above-mentioned conventional problems, the rotational speed of the nozzle (3) of the bell type coating machine (1) is set to 300 to 2500 m / min.
Provided is a coating method for coating a surface to be coated by dispersing a coating material having a viscosity adjusted to 30 to 80 cps / 25 ° C., and further provides a building board with a spot pattern and a multicolor spot pattern coated by the coating method. It provides building boards.
【0005】[0005]
【作用】 本発明で使用する塗料は水性塗料、油性塗料
の何れであってもかまわないが、粘度は通常30〜80
cps /25℃程度に調節される。ベル型塗装機は主とし
て自動車の車体塗装に用いられる塗装機であり、回転す
るノズルから塗料を遠心力によって噴出霧化させ、静電
的に被塗物に塗装を行なうものである。この際のノズル
の回転速度は周速度として通常4700〜7900m/
分の範囲に設定されている。本発明では上記ベル型塗装
機のノズルの回転速度を上記通常の回転速度より大巾に
低下させ、周速度として300〜2500m/分の範囲
に設定する。この範囲では塗料は霧化よりも粗い粒子に
分散して被塗面に付着する。この際の塗料の粒子のサイ
ズはノズル回転速度が高くなる程小さくなる。ノズル回
転速度が2500m/分を越えると塗料は霧状に分散さ
れ、その結果被塗面は均一に塗装され斑点状にならな
い。またノズル回転速度が300m/分未満であると、
塗料を粒子状に分散させにくゝなる。The paint used in the present invention may be any of a water-based paint and an oil-based paint, and the viscosity is usually 30 to 80.
It is adjusted to cps / 25 ° C. A bell type coating machine is a coating machine mainly used for painting the body of an automobile, and sprays and atomizes paint from a rotating nozzle by centrifugal force to electrostatically paint an object to be coated. The rotation speed of the nozzle at this time is usually 4700 to 7900 m /
Set to the range of minutes. In the present invention, the rotation speed of the nozzle of the bell-type coating machine is set to be much lower than the normal rotation speed, and the peripheral speed is set in the range of 300 to 2500 m / min. In this range, the paint is dispersed in particles coarser than the atomization and adheres to the surface to be coated. The size of the paint particles at this time becomes smaller as the nozzle rotation speed becomes higher. If the nozzle rotation speed exceeds 2500 m / min, the paint is dispersed in a mist state, and as a result, the surface to be coated is uniformly applied and does not become a spot. When the nozzle rotation speed is less than 300 m / min,
It is difficult to disperse the paint in the form of particles.
【0006】[0006]
【実施例】 本発明を図1〜図4に示す一実施例によっ
て説明すれば、図1において(1) はベル型塗装機であ
り、機枠(2) と、該機枠(2) の先端に下 向きに回転可能
に取付けられているノズル(3) と、該ノズル(3) を回転
させるエアモーター(4) と、該ノズル(3) の上側に取付
けられているシェービングエアキャップ(3E)とからな
り、該エアモーター(4) と該シェービングエアキャップ
(3E)とには操作盤(6) から空気送通路(7,8) を介して夫
々高圧空気が送通され、ノズル(3) の根端部には塗料タ
ンク(9) から塗料供給路(10)を介してポンプ(11)によっ
て塗料(5) が供給され、過剰の塗料(5) は戻し路(12)を
介して塗料タンク(9) に戻される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 4. In FIG. 1, (1) is a bell-type coating machine, and is composed of a machine frame (2) and a machine frame (2). a nozzle (3) which is rotatably mounted to the lower direction to the tip, the air motor (4) for rotating the nozzle (3), the shaving air cap attached to the upper side of the nozzle (3) (3E ), The air motor (4) and the shaving air cap
(3E), high-pressure air is sent from the operation panel (6) through the air feed passages (7, 8), respectively, and a paint supply passage from the paint tank (9) is provided at the root end of the nozzle (3). The paint (5) is supplied by the pump (11) via (10), and the excess paint (5) is returned to the paint tank (9) via the return path (12).
【0007】 該ノズル(3) は例えば図2に示すような
構造であり、開口部にスリット(3B)が張設された外枠(3
A)の根端に塗料供給路(10)に連絡する塗料供給口(3C)を
設け、該塗料供給口(3C)の直下には分散板(3D)を配置
し、また該外枠(3A)の根端部には図3に示すように例え
ば径0.5mmの小吹出孔(31E) と例えば径1.0mmの大
吹出孔(32E) とを略交互に円周状に配列したシェービン
グエアキャップ(3E)が取付けられている。The nozzle (3) has a structure as shown in FIG. 2, for example, and has an outer frame (3) having a slit (3 B) stretched in the opening.
A paint supply port (3C) communicating with the paint supply path (10) is provided at the root end of (A), a dispersing plate (3D) is arranged immediately below the paint supply port (3C), and the outer frame (3A As shown in FIG. 3, a shaving in which small blow holes (31E) having a diameter of, for example, 0.5 mm and large blow holes (32E) having a diameter of, for example, 1.0 mm are substantially alternately arranged in a circle at the root end. Air cap (3E) is attached.
【0008】 上記構成のベル型塗装機(1) にあって
は、エアモーター(4) によってノズル(3) を回転させつ
ゝ塗料供給口(3C)からノズル(3) 内に塗料(5) を供給
し、分散板(3D)によって該塗料(5) に遠心力を及ぼして
粒状に分散させ、スリット(3B)を介して被塗面に吹付け
る。この際シェービングエアキャップ(3E)の吹出孔(31
E,32E) から空気を下方に吹出して塗料粒子の拡がりを
規制する。In the bell type coating machine (1) having the above configuration, the nozzle (3) is rotated by the air motor (4), and the paint (5) is supplied from the paint supply port (3C) into the nozzle (3). The paint (5) is centrifugally applied to the paint (5) by a dispersion plate (3D) to be dispersed in a granular form, and is sprayed on the surface to be coated through a slit (3B). At this time, the shaving air cap (3E)
E, 32E) blows air downward to regulate the spread of paint particles.
【0009】 上記ベル型塗装機(1,1) は例えば図4に
示すように被塗装板(13A) を矢印方向に移動させるベル
トコンベア(14)の直上に配置され、該ベルトコンベア(1
4)上の被塗装板(13A) に塗装を施すが、この際該ベル型
塗装機(1) のノズル(3) の回転速度を300〜2500
m/分の範囲に設定して斑点状の塗装を行なう。塗装後
の塗装板(13)はローラーコンベア(15)に移されて乾燥工
程に移される。そしてベルトコンベア(14)は下側におい
て洗浄槽(16)内の洗浄液によって付着した塗料を洗浄さ
れる。The bell type coating machine (1, 1) is disposed, for example, directly above a belt conveyor (14) for moving a plate (13A) to be coated in an arrow direction as shown in FIG.
4) Coating is applied to the upper plate (13A). At this time, the rotation speed of the nozzle (3) of the bell type coating machine (1) is set to 300 to 2500.
The spot-like coating is performed by setting the range to m / min. The coated plate (13) after coating is transferred to a roller conveyor (15) and transferred to a drying step. Then, on the lower side of the belt conveyor (14), the paint adhered is washed by the washing liquid in the washing tank (16).
【0010】 上記塗装システムにおいて、前段のベル
型塗装機(1) と後段のベル型塗装機(1) とに使用する塗
料の色を変えることによって多色斑点模様を形成するこ
とが出来る。またベル型塗装機(1) は三個以上設定され
てもよい。In the above-mentioned coating system, a multicolor spot pattern can be formed by changing the color of the paint used for the bell-type coater (1) in the first stage and the bell-type coater (1) in the second stage. Also, three or more bell-type coating machines (1) may be set.
【0011】 上記塗装システムによって繊維セメント
板に水性塗料を塗装した場合の結果を表1に示す。Table 1 shows the results when the water-based paint was applied to the fiber cement board by the above-mentioned coating system.
【表1】 [Table 1]
【0012】 表1をみると塗料粘度が35cps /25
℃の場合でも、75cps /25℃の場合でもノズル回転
速度が300m/分未満になると、塗料の粒化が円滑に
行なわれず粗大塊状の塗装となり、2500m/分を越
えると斑点状とならず均一塗装になってしまう。According to Table 1, the paint viscosity is 35 cps / 25.
When the nozzle rotation speed is less than 300 m / min, even at 75 ° C./25° C., even if the nozzle rotation speed is less than 300 m / min, the coating is not smoothly granulated, and the coating becomes coarse and massive. It will be painted.
【0013】[0013]
【発明の効果】 したがって本発明ではベル型塗装機の
ノズルの回転速度の調節のみで巾広な被塗面を有する建
築板に対する斑点状の塗装が極めて容易に行なわれ、商
品価値が極めて高い自然石様の斑点模様付建築板が得ら
れる。Accordingly, in the present invention, a building having a wide surface to be coated can be obtained only by adjusting the rotation speed of the nozzle of the bell type coating machine.
Speckled paint for built plate is very easily carried out, the quotient
An architectural board with a speckled pattern like a natural stone with extremely high product value can be obtained.
【図面の簡単な説明】 図1〜図4は本発明の一実施例を示すものである。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 4 show one embodiment of the present invention.
【図1】 塗装システム図[Fig. 1] Painting system diagram
【図2】 ノズル断面図FIG. 2 is a sectional view of a nozzle.
【図3】 シェービングエアキャップ下面図FIG. 3 is a bottom view of a shaving air cap.
【図4】 塗装工程図Fig. 4 Painting process diagram
1 ベル型塗装機 3 ノズル 4 エアモーター 13A 被塗装板 13 塗装板 1 Bell type coating machine 3 Nozzle 4 Air motor 13A Plate to be coated 13 Painted plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 白井 重治 名古屋市港区汐止町12番地 ニチハ株式 会社内 (56)参考文献 特開 昭54−163978(JP,A) 特開 平3−186381(JP,A) 特開 平4−300665(JP,A) 特開 昭63−114635(JP,A) 特公 昭63−47511(JP,B2) (58)調査した分野(Int.Cl.7,DB名) B05D 1/02 B05D 5/06 101 B32B 13/12 E04F 13/08 E04F 13/14 102 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeharu Shirai 12 Nishiha, Minato-ku, Nagoya-shi Nichiha Co., Ltd. (56) References JP-A-54-163978 (JP, A) JP-A-3-186381 (JP) JP-A-4-300665 (JP, A) JP-A-63-114635 (JP, A) JP-B-63-47511 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB B05D 1/02 B05D 5/06 101 B32B 13/12 E04F 13/08 E04F 13/14 102
Claims (3)
2500m/分に設定して粘度を30〜80 cps/25
℃に調節した塗料を分散させることによって建築板の表
面に塗装を行なうことを特徴とする建築板の塗装方法1. The nozzle rotation speed of a bell type coating machine is 300 to
Set to 2500 m / min to increase viscosity from 30 to 80 cps / 25
A method for painting a building board, characterized in that the surface of the building board is painted by dispersing a paint adjusted to a temperature of ° C.
2500m/分に設定して粘度を30〜80 cps/25
℃に調節した塗料を分散させることによって表面を塗装
したことを特徴とする斑点模様付建築板2. The nozzle speed of a bell type coating machine is 300 to 300.
Set to 2500 m / min to increase viscosity from 30 to 80 cps / 25
Architectural board with spots, characterized in that the surface is painted by dispersing a paint adjusted to ℃
の斑点模様付建築板3. The building board with a spot pattern according to claim 2, wherein the spot pattern is multicolored.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25917693A JP2999105B2 (en) | 1993-09-22 | 1993-09-22 | Painting method of building board and building board with spot pattern |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25917693A JP2999105B2 (en) | 1993-09-22 | 1993-09-22 | Painting method of building board and building board with spot pattern |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0788424A JPH0788424A (en) | 1995-04-04 |
JP2999105B2 true JP2999105B2 (en) | 2000-01-17 |
Family
ID=17330423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25917693A Expired - Fee Related JP2999105B2 (en) | 1993-09-22 | 1993-09-22 | Painting method of building board and building board with spot pattern |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2999105B2 (en) |
-
1993
- 1993-09-22 JP JP25917693A patent/JP2999105B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0788424A (en) | 1995-04-04 |
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