JPH0226677A - Formation of coating film to inner wall of water supply piping - Google Patents
Formation of coating film to inner wall of water supply pipingInfo
- Publication number
- JPH0226677A JPH0226677A JP17673288A JP17673288A JPH0226677A JP H0226677 A JPH0226677 A JP H0226677A JP 17673288 A JP17673288 A JP 17673288A JP 17673288 A JP17673288 A JP 17673288A JP H0226677 A JPH0226677 A JP H0226677A
- Authority
- JP
- Japan
- Prior art keywords
- film
- wall
- color
- water supply
- paint
- 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.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 239000003086 colorant Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 24
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000003973 paint Substances 0.000 claims description 41
- 230000000295 complement effect Effects 0.000 claims description 9
- 230000000704 physical effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000012790 confirmation Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 238000010422 painting Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011179 visual inspection Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
青色系である請求項３記載の給水用配管系内壁に関し、
地中に埋設された上下水道用の本管、マンション、ビル
等の給水管、給湯管、空調管等、既設管の更生工事に適
用される。Regarding the inner wall of the water supply piping system according to claim 3, which is blue in color,
Applicable to rehabilitation work of existing pipes, such as water and sewage main pipes buried underground, water supply pipes, hot water supply pipes, and air conditioning pipes for condominiums and buildings.
給水用配管更生工事には次の特殊性がある。
即ち、第１に配管内塗装であるため、工事内容の視認が
困難である。第２に、−旦錆の付いた管に塗装を施すた
め、塗膜の定着が新設管に比し、困難である。このため
、ピンホールの発生、塗膜形成の不完全な部分が生じ易
い。第３に、工事費用が莫大である。例えば、総延床面
積約１．８００ｍ２の５階建３０戸の建物の場合、給水
管の配管系は約１，６００ｍとなる。この場合、重ね塗
り法による工事費用は約１千万円位かかるのが通例であ
る。また給湯管更生工事の場合は、上記費用よりｍ２当
たり３０％程度高くつくのが通例である。第４に、上記
事情から、施工は更生工事自体及び更生工事の結果につ
き常に不安を有している。このため、更生工事は施工業
者の実績、信用を頼りにしているのが現状であり、工事
技術本位に選ばれていない。この結果、悪質業者の横行
、手抜き工事等々、種々の弊害が罷り通っているのが現
状である。第５に、作業現場は建物内部、地中等、視認
困難な場所であるため混乱しがちでり、複雑な作業には
向かない。これが工事関連の技術の進歩を阻害してきた
要因の一つである。Water supply pipe rehabilitation work has the following special characteristics. That is, firstly, since the inside of the pipe is painted, it is difficult to visually confirm the construction details. Second, since the paint is applied to a rusted pipe, it is more difficult to fix the paint film than on a newly installed pipe. For this reason, pinholes and incomplete coating film formation are likely to occur. Third, the construction costs are enormous. For example, in the case of a five-story building with 30 units and a total floor area of approximately 1.800 m2, the water supply pipe system will be approximately 1,600 m long. In this case, the construction cost for the layered coating method usually costs about 10 million yen. In addition, in the case of hot water pipe rehabilitation work, the cost is usually about 30% higher per m2 than the above cost. Fourth, due to the above circumstances, the construction company is always concerned about the rehabilitation work itself and the results of the rehabilitation work. For this reason, rehabilitation work currently relies on the track record and trustworthiness of the construction contractor, and construction technology is not the main focus of selection. As a result, the current situation is that various negative effects such as the rampant use of unscrupulous contractors and shoddy construction work are prevalent. Fifth, work sites tend to be confusing because they are difficult to see, such as inside buildings or underground, and are not suitable for complex work. This is one of the factors that has hindered the progress of construction-related technology.
かかる背景の下にあるこの種技術分野にあっては、未だ
信頼されるに足る工事技術が確立されていない。このた
め、従来は一般にコスト的に有利な単一塗装法が採用さ
れていた。これは、配管内壁に付着、発生している錆を
除去した後、加圧気体を入口側から出口側に吹き付け、
これにより塗料を移送し配管内壁に塗膜を形成する方法
であるしかし、この方法では、仮に完全除錆が施された
としても、塗料の吹き付けが一方向一回であるため、ピ
ンホール、塗りむらの発生等は免れなかった。この結果
、塗膜形成の不完全な部分から錆の発生、成長が起こり
、更生工事の長期保証をすることができなかった。しか
も、従来の除錆方法は不完全であったため、ピンホール
、塗りむらの発生等は頻繁に起こっていた。
そこで、重ね塗り法が提唱された。これは、除錆後塗装
する点及び加圧気体を用いる点は前者の方法と同様であ
るが、塗料を入口側から出口側に吹き付けた後、これを
逆送し、本管に接続する各枝管毎にこの作業を順次反復
することにより、配管内壁に塗膜を形成する方法である
。Against this background, in this type of technical field, reliable construction technology has not yet been established. For this reason, a single coating method, which is cost-effective, has conventionally been employed. This is done by removing the rust that has adhered to the inner wall of the piping, and then spraying pressurized gas from the inlet side to the outlet side.
This method transfers the paint and forms a paint film on the inner wall of the pipe. However, even if complete rust removal is achieved with this method, the paint is sprayed only once in one direction, so pinholes and Occurrence of unevenness could not be avoided. As a result, rust occurred and grew in areas where the paint film was incompletely formed, making it impossible to guarantee long-term rehabilitation work. Moreover, since conventional rust removal methods were incomplete, pinholes, uneven coating, etc. frequently occurred. Therefore, a layered coating method was proposed. This method is similar to the former method in that it is painted after rust removal and that pressurized gas is used, but after spraying the paint from the inlet side to the outlet side, it is sent backwards to each pipe connected to the main pipe. This method forms a coating film on the inner wall of the pipe by repeating this process for each branch pipe.
しかし、従来の前記重ね塗り法は同一塗料の往復塗装で
あったため、次の欠点があった。
第１に、同一塗料であったため、塗膜の形成は下地膜、
上地膜とも同色となり、重ね塗りをしたか否か、施主は
もちろん、施工業者でさえ視認が困難であった。とくに
、配管内は暗いので実際上は殆ど視認不能であった。
したがって、第２に、悪質業者が一回塗りを重ね塗りと
称したとしても、施主はこれを見抜くことができなかっ
た。
第３に、重ね塗りに塗りむらがあったとしても、下地膜
と上地膜とが同色であるため、塗りむらの有無そのもの
の発見が困難乃至殆ど不可能であった。この結果、下地
膜にピンホールがあったとしても上地膜によりこれをカ
バーすることができなかった。
第４に、往復塗装であるため、特殊設備を要し、このた
め工事費用が尚−層莫大となった。
また第５に、往復塗装であるため、作業が複雑となり、
現実の現場作業には不向きであるという欠点があった。
さらに第６として、重ね塗りは数回の多層になる程、配
管内径を小とするため、水等の流通を向上せしめること
と矛盾する。また、多層塗装となる程、コスト高となる
ことは免れなかった。
本願発明は、上記欠点を全て解消する配管系内壁の塗膜
形成方法を供することを目的とする。However, since the conventional multi-coating method involves re-coating the same paint, it has the following drawbacks. First, since the paint was the same, the coating film was formed by the base film,
The top layer was the same color, making it difficult for the owner and even the contractor to visually determine whether or not multiple coats had been applied. In particular, the interior of the piping was so dark that it was virtually impossible to see. Therefore, secondly, even if an unscrupulous contractor referred to one coat as multiple coats, the owner could not see through this. Thirdly, even if there were uneven coatings during overcoating, it was difficult or almost impossible to detect the presence or absence of uneven coatings because the base film and the top film were of the same color. As a result, even if there was a pinhole in the base film, it could not be covered by the top film. Fourthly, since it is a reciprocal painting process, special equipment is required, which further increases the construction cost. Fifth, because the painting is done back and forth, the work becomes complicated.
The drawback was that it was unsuitable for actual field work. Furthermore, sixthly, the more layers there are in multiple coatings, the smaller the inner diameter of the piping becomes, which is inconsistent with improving the flow of water and the like. In addition, the more multi-layered the coating, the higher the cost. The object of the present invention is to provide a method for forming a coating film on the inner wall of a piping system that eliminates all of the above-mentioned drawbacks.
上記目的達成のため、本願発明は、建物内に配設された
給水用の配管を更生する方法において。
配管内壁に付着した錆を除去後、加圧気体にて一の塗料
を移送し該塗料にて一の色を有する下地膜を形成し、次
いで加圧気体にて他の塗料を移送し該他の塗料にて上記
下地膜に対比する色を有する本願発明は、上記下地膜と
上地膜が互いに補色である点、上記下地膜と上地膜が互
いに暖色と冷色の関係にある点、上記下地膜が赤色系で
あり、上記上地膜が青色系である点、上記下地膜と上地
膜が互いに無彩色と有彩色の関係にある点、上記下地膜
と上地膜が互いに灰色と有彩色の関係にある点、上記下
地膜が白色であり、上記上地膜が青色である点、上記下
地膜と上地膜が互いに暗色と明色の関係にある点及び上
記一の塗料と他の塗料との物性が異質である点をも特徴
とする。To achieve the above object, the present invention provides a method for rehabilitating water supply piping installed in a building. After removing rust adhering to the inner wall of the piping, pressurized gas is used to transfer one paint to form a base film having one color, and then pressurized gas is used to transfer another paint to the other paint. The present invention, which has a color that contrasts with the base film in the paint, is characterized in that the base film and the top film are complementary colors to each other, that the base film and the top film have a warm color and a cool color relationship with each other, and that the base film has a color that contrasts with the base film. is a red color, and the top film is a blue color, the base film and the top film have a relationship between achromatic and chromatic colors, and the base film and top film have a gray and chromatic relationship with each other. In certain respects, the base film is white and the top film is blue, the base film and the top film have a relationship between dark and light colors, and the physical properties of the first paint and the other paint are different. It is also characterized by its uniqueness.
本願発明にかかる配管系内壁の塗膜形成方法によれば、
目視検査が素人でも一目瞭然に可能となるため、施工検
査を容易、迅速かつ正確に行なうことができ、このため
、ピンホール、塗りむらの発生等を防止することができ
、かつ悪質施工を防止することができる。
また、目視検査が容易であるため、塗りむらの発見も簡
単に行なうことができ、塗りむら、ピンホールのない完
全塗膜が可能となる。これにより、配管更生工事の保証
期間を長期化することかでき更生工事の信用向上に資す
る。
さらに、逆送等塗装方向を変更する必要はなく、下地膜
と上地膜の塗料を所定のものに変更するだけでよいから
作業が簡単であり、配管更生工事の現場に適する効果が
ある。またコスト的にも有利である。 次に、下地膜と
上地膜が色により容易に峻別可能だから、上地膜が剥離
したか否かを容易に視認することができ、このため配管
更生工事のメンテナンスが容易になるという効果がある
さらに、塗膜の形成は下地膜と上地膜の２層で足りるか
ら、配管内径が過度に小とされない効果がある。According to the method for forming a coating film on the inner wall of a piping system according to the present invention,
Since visual inspections can be easily performed even by amateurs, construction inspections can be carried out easily, quickly and accurately, which can prevent the occurrence of pinholes, uneven coating, etc., and also prevent malicious construction. be able to. Furthermore, since visual inspection is easy, uneven coating can be easily detected, and a complete coating film without uneven coating or pinholes can be achieved. This makes it possible to extend the warranty period for pipe rehabilitation work and contributes to improving credibility of the rehabilitation work. Furthermore, there is no need to change the direction of painting, such as reverse feeding, and it is only necessary to change the paints for the base film and top film to the specified ones, so the work is simple and has the effect of being suitable for pipe rehabilitation work sites. It is also advantageous in terms of cost. Secondly, since the base film and the top film can be easily distinguished by color, it is easy to visually check whether the top film has peeled off or not, which has the effect of facilitating maintenance during pipe rehabilitation work. Since it is sufficient to form the coating film in two layers, the base film and the top film, there is an effect that the inner diameter of the pipe is not made too small.
本願発明にかかる配管系内壁の塗膜形成方法により、配
管更生工事を行なうには、まず、前処理として加圧空気
等により研磨剤を配管ｌ内に送込み、配管ｌの内壁に発
生、付着している錆を除去する。しかる後、加圧空気等
の加圧気体にて一の塗料Ａを配管１内に送給し、配管１
の内壁に一の色を有する下地膜２を形成する。塗装後、
自然乾燥の場合は約６時間乃至約１２時間、加温乾燥の
場合は約２時間半乃至約９時間で塗料Ａが半乾燥状態と
なる。この状態で、他の塗料Ｂを配管ｌ内に送給し、下
地膜２の上に塗装する。下地膜２の厚さは通常０．３ｍ
ｍ〜０．５ｍｍ程度とする。
塗装後、約５４時間乃至約１５時間、通常は約２４時間
の自然乾燥で、塗料Ｂが完全に乾燥する。
これにより、下地膜２に対比する色（以下、対比色とい
う）を有する上地膜３が形成される。上地膜３の厚さは
通常０．３ｍｍ〜０．５ｍｍ程度とする。
対比色には、下地膜２と上地膜３が互いに補色関係にあ
る場合、赤色、黄色の如き暖色と、白色、青色の如き冷
色の関係にある場合、灰色と有彩色の関係にある場合、
白色の如ぎ無彩色と青色の如き有彩色の関係にある場合
、暗色と明色の関係にある場合等がある。ムーン及びス
ペンサーが唱える最近の色彩学によれば、ある色に対す
る対比色には一定の幅があることが知られている。した
がって、例えば補色といっても、色彩掌上の厳密なもの
である必要はなく、多少の幅があってよい。上記対比色
において、補色関係にある場合及び暖色ど冷色の関係に
ある場合は、給水管用配管の塗膜形成に一層適する。
下地膜２ど上地膜３とを対比色にする理由は次の通りで
ある。例えば下地膜２ど上地膜３が互いに補色関係にあ
る場合は、相接する２色は際立って見えることが色彩掌
上証明されている。即ち、補色またはこれに近い関係に
ある２種の色を並べてみるとき、例えば赤色系と青色系
とでは互いに他方の色を強め合い、飽和度を高めて鮮や
かになる。これを色彩対比（ｃｏｌｏｒ ｃｏｎｔｒ
ａｓｔ）という。このとき、両色の境界を凝視すると、
その境界に沿ってとくに著しい対比がみられる。これを
辺縁対比（ｂｏｒｄｅｒ ｃｏｎｔｒａｓｔ）という
。したがって、仮に第２図のように下地膜２、上地膜３
間に塗つむら等があると、その境界に沿って辺縁対比が
生じるため、塗りむらの発見がきわめて容易に視認でき
るのである。
塗りむらがなくなり、上地膜３が下地膜２を完全に被覆
すれば、ピンホールの発生する余地はない色彩掌上、上
記色彩対比はまた灰色と有彩色との間にもあられれ、そ
こでは灰色は隣接する色と反対の淡い色彩を帯びて見え
る。したがって、かかる場合も上記と同様、下地膜２、
上地膜３間に塗りむら等があると、その境界に沿って辺
縁対比が生じるため、塗りむらの発見がきわめて容易に
視認できるのである。色彩をもたない灰色については、
明るさのかなり異なる二つの灰色の間に一種の対比が起
こる。つまり黒色に隣接する灰色は白色っぽく、白色に
隣接する灰色は黒色っぽくなる。これを明るさの対比（
ｂｒｉ ｇｈｔｎｅｓｓｃｏｎｔｒａｓｔ）という。し
たがって、かかる場合も、上記と同様、下地膜２、上地
膜３間に塗つむら等があると、その境界に沿って辺縁対
比が生じるため、塗りむらの発見がきわめて容易に視認
できるのである。同様のことは、白色と青色、暖色ど冷
色、無彩色と有彩色についてもいえる下地膜２用の塗料
Ａと上地膜３用の他の塗料Ｂとは互いに異色のものを用
いる。しかし、塗装前の塗料の色が同色に見えても、成
分が異なるため、下地膜２の上に他の塗料Ｂを塗装した
結果、化学反応を起こし、これがため、結果的に上地膜
３が下地膜２と異色になる場合があり、本発明ではこの
場合をも含む。また異色であるとともに、一の塗料Ａと
他の塗料Ｂとが粘性、形状等物性において異質な場合は
、一の塗料Ａと他の塗料Ｂとが互いに補完しあう結果と
なり、強度的にもより強固な塗膜の形成が可能となり、
ピンホールの発生防止にも効果的である。さらに、塗膜
の形成は下地膜２ど上地膜３との二層で足りるから、配
管１の内径が過度に小とされない。次に、本願発明にか
かる配管系内壁の塗膜形成方法は、下地膜２を形成する
塗料Ａと上地膜３を形成する塗料Ｂとの塗装方向を変更
する必要がなく、同一方向の二回塗装である。したがっ
て、混乱しがちな現場でも作業を間違える余地がない。
このように下地膜２と上地膜３が対比色であると、色彩
対比があり、その境界に沿って辺縁対比が生ずるため、
目視検査が一目瞭然となり、この結果、前記した所期の
目的を達成することができるのである。In order to carry out pipe rehabilitation work using the method for forming a coating film on the inner wall of a piping system according to the present invention, first, as a pretreatment, an abrasive is sent into the pipe l using pressurized air or the like, and the abrasive is generated and adheres to the inner wall of the pipe l. Remove any rust. After that, one paint A is fed into the pipe 1 using pressurized gas such as pressurized air, and the paint A is supplied into the pipe 1.
A base film 2 having one color is formed on the inner wall of the substrate. After painting,
The paint A becomes semi-dry in about 6 to 12 hours in the case of natural drying, and in about 2.5 to about 9 hours in the case of heated drying. In this state, another paint B is fed into the pipe 1 and coated on the base film 2. The thickness of the base film 2 is usually 0.3 m.
m to about 0.5 mm. After painting, paint B is completely dried by air drying for about 54 hours to about 15 hours, usually about 24 hours. As a result, a top film 3 having a color that contrasts with the base film 2 (hereinafter referred to as a contrasting color) is formed. The thickness of the upper film 3 is usually about 0.3 mm to 0.5 mm. Contrasting colors include cases where the base film 2 and the top film 3 have a complementary color relationship with each other, cases where there is a relationship between warm colors such as red and yellow and cool colors such as white and blue, cases where there is a relationship between gray and chromatic colors,
There are cases where there is a relationship between an achromatic color such as white and a chromatic color such as blue, and there are cases where there is a relationship between a dark color and a bright color. According to recent color theory proposed by Moon and Spencer, it is known that there is a certain range of contrasting colors for a certain color. Therefore, for example, complementary colors do not necessarily have to be strictly based on the color scheme, and may have some range. Among the above-mentioned contrasting colors, cases where the colors are complementary or between warm and cool colors are more suitable for forming a coating film on water supply pipes. The reason why the base film 2 and the top film 3 are made in contrasting colors is as follows. For example, it has been proven in color theory that when the base film 2 and the top film 3 have complementary colors to each other, the two adjacent colors look outstanding. That is, when two colors that are complementary or have a similar relationship are placed side by side, for example, a red color and a blue color mutually enhance the other color, increasing the degree of saturation and making the color more vivid. This is called color contrast.
ast). At this time, if you stare at the boundary between the two colors,
Particularly striking contrasts can be seen along the boundaries. This is called border contrast. Therefore, if the base film 2 and the top film 3 are shown in FIG.
If there is an uneven coating in between, edge contrast occurs along the boundary, making it extremely easy to spot the uneven coating. If uneven coating is eliminated and the top film 3 completely covers the base film 2, there is no room for pinholes to occur.The above color contrast can also occur between gray and chromatic colors, where gray appears to have a pale color that is the opposite of the adjacent color. Therefore, in such a case as well, the base film 2,
If there is an uneven coating between the upper films 3, edge contrast occurs along the boundary, making it extremely easy to visually detect the uneven coating. Regarding gray, which has no color,
A kind of contrast occurs between two grays of considerably different brightness. In other words, gray adjacent to black appears white, and gray adjacent to white appears black. This is a comparison of brightness (
It is called brilliance contrast). Therefore, in such a case as well, if there is uneven coating between the base film 2 and the top film 3, edge contrast will occur along the boundary, making it extremely easy to visually detect the uneven coating. . The same can be said for white and blue, warm and cool colors, and achromatic and chromatic colors.The paint A for the base film 2 and the other paint B for the top film 3 are of different colors. However, even if the colors of the paints before painting appear to be the same, the components are different, and as a result of painting another paint B on top of the base film 2, a chemical reaction occurs, and as a result, the top film 3 The color may be different from the base film 2, and the present invention also includes this case. In addition, if one paint A and another paint B have different physical properties such as viscosity and shape, as well as having different colors, one paint A and another paint B will complement each other, resulting in a difference in strength. It is possible to form a stronger coating film,
It is also effective in preventing the occurrence of pinholes. Furthermore, since it is sufficient to form a coating film in two layers, the base film 2 and the top film 3, the inner diameter of the pipe 1 is not made too small. Next, in the method of forming a coating film on the inner wall of a piping system according to the present invention, there is no need to change the coating direction of the coating material A forming the base film 2 and the coating material B forming the top film 3, and the coating is applied twice in the same direction. It is painted. Therefore, there is no room for mistakes in work, even on sites that tend to be confusing. When the base film 2 and the top film 3 are of contrasting colors in this way, there is a color contrast, and a marginal contrast occurs along the boundary.
The visual inspection becomes self-explanatory, and as a result, the desired objective described above can be achieved.
給水用の配管系に対し、次の塗料を用い、次の色の塗膜
が形成された。
・塗料
下地用
エポキシ樹脂（ビスフェノールＡ型）３６．６０重量％
、顔料（酸化チタン、炭酸カルシウム）３０．００重量
％及び添加剤（消泡剤）０．０１重量％からなる白色の
基剤に、エポキシ硬化剤（変性ポリアミン）１６．７０
重量％、顔料（アゾ顔料、炭酸カルシウム）１６．６８
重量％及び添加剤（消泡剤）０．０１重量％からなる赤
色の硬化剤を混合した塗料を下地用塗料Ａ（商品名：ダ
イアボンドＤＥ３９４、ノガワケミカル株式会社製）と
して用いた。
上地用
エポキシ樹脂（ビスフェノールＡ型）３６．６０重量％
、顔料（酸化チタン、炭酸カルシウム）３０．００重量
％及び添加剤（消泡剤）０．０１重量％からなる白色の
基剤に、エポキシ硬化剤（変性ポリアミン）１６．７０
重量％、顔料（フタロシアニンブルー、炭酸カルシウム
）１６．６８重量％及び添加剤（消泡剤）０．０１重量
％からなる青色の硬化剤を混合した塗料を上地用塗料Ｂ
（商品名：ダイアボンドＤＥ２８３Ａ、ノガワケミカル
株式会社製）として用いた。
・塗膜
色 厚さ
下地膜２ 赤色系 約０．５ｍｍ
上地膜３ 青色系 約０．５ｍｍ
施工後、２０℃で２４時間後に通水可能となった。
施工の結果、塗膜の色が上記のように互いに略補色かつ
暖色ど冷色との関係になるため、色彩対比、辺縁対比が
起こり所期の目的が達成された。The following paints were used to form coatings in the following colors on the water supply piping system.・Epoxy resin for paint base (bisphenol A type) 36.60% by weight
, a white base consisting of 30.00% by weight of pigments (titanium oxide, calcium carbonate) and 0.01% by weight of additives (antifoaming agent), and 16.70% of epoxy curing agent (modified polyamine).
Weight %, pigment (azo pigment, calcium carbonate) 16.68
A paint mixed with a red curing agent containing 0.01% by weight of an additive (antifoaming agent) was used as base paint A (trade name: Diabond DE394, manufactured by Nogawa Chemical Co., Ltd.). Epoxy resin for top layer (bisphenol A type) 36.60% by weight
, a white base consisting of 30.00% by weight of pigments (titanium oxide, calcium carbonate) and 0.01% by weight of additives (antifoaming agent), and 16.70% of epoxy curing agent (modified polyamine).
Surface paint B is a paint mixed with a blue curing agent consisting of 16.68% by weight of pigments (phthalocyanine blue, calcium carbonate) and 0.01% by weight of additives (antifoaming agent).
(Product name: Diabond DE283A, manufactured by Nogawa Chemical Co., Ltd.).・Coating film color Thickness Base film 2 Redish approx. 0.5mm Top film 3 Blueish approx. 0.5mm After installation, water flow became possible 24 hours later at 20°C. As a result of the construction, the colors of the paint film were almost complementary to each other as described above, and the relationship between warm and cool colors created color contrast and edge contrast, achieving the intended purpose.
第１図は本発明にかかる配管系内壁の塗膜形成方法によ
り施工された配管系を示す断面図、第２図は第１図Ａ−
Ａ断面図である。
ｌ・・・配管、２・・・下地膜、３・・・上地膜。
特許出願人 日本ハウズイング株式会社□ 弁理士
浅野勝美FIG. 1 is a sectional view showing a piping system constructed by the method for forming a coating film on the inner wall of a piping system according to the present invention, and FIG.
It is an A sectional view. 1... Piping, 2... Base film, 3... Top film. Patent applicant Nihon Houzuing Co., Ltd. Patent attorney Katsumi Asano
Claims (1)
おいて、配管内壁に付着した錆を除去後、加圧気体にて
一の塗料を移送し該塗料にて一の色を有する下地膜を形
成し、次いで加圧気体にて他の塗料を移送し該他の塗料
にて上記下地膜に対比する色を有する上地膜を形成する
ことを特徴とする給水用配管系内壁の塗膜形成方法。 ２、上記下地膜と上地膜が互いに補色である請求項１記
載の給水用配管系内壁の塗膜形成方法。 ３、上記下地膜と上地膜が互いに暖色と冷色の関係にあ
る請求項１記載の給水用配管系内壁の塗膜形成方法。 ４、上記下地膜が赤色系であり、上記上地膜が青色系で
ある請求項３記載の給水用配管系内壁の塗膜形成方法。 ５、上記下地膜と上地膜が互いに無彩色と有彩色の関係
にある請求項１記載の給水用配管系内壁の塗膜形成方法
。 ６、上記下地膜と上地膜が互いに灰色と有彩色の関係に
ある請求項５記載の給水用配管系内壁の塗膜形成方法。 ７、上記下地膜が白色であり、上記上地膜が青色である
請求項５記載の給水用配管系内壁の塗膜形成方法。 ８、上記下地膜と上地膜が互いに暗色と明色の関係にあ
る請求項１記載の給水用配管系内壁の塗膜形成方法。 ９、上記一の塗料と他の塗料との物性が異質である請求
項１乃至８のいずれか記載の給水用配管系内壁の塗膜形
成方法。[Claims] 1. In a method for rehabilitating water supply piping installed in a building, after removing rust adhering to the inner wall of the piping, a paint is transferred using pressurized gas, and the paint is coated with the paint. For water supply, characterized in that a base film having one color is formed, then another paint is transferred using pressurized gas, and a top film having a color contrasting with the base film is formed with the other paint. Method of forming a coating film on the inner wall of a piping system. 2. The method for forming a coating film on an inner wall of a water supply piping system according to claim 1, wherein the base film and the top film have complementary colors to each other. 3. The method for forming a coating film on an inner wall of a water supply piping system according to claim 1, wherein the base film and the top film have a warm color and a cool color relationship with each other. 4. The method for forming a coating film on the inner wall of a water supply piping system according to claim 3, wherein the base film is red-colored and the top film is blue-colored. 5. The method for forming a coating film on an inner wall of a water supply piping system according to claim 1, wherein the base film and the top film have a mutually achromatic color and a chromatic color relationship. 6. The method for forming a coating film on an inner wall of a water supply piping system according to claim 5, wherein the base film and the top film have a mutually gray and chromatic color relationship. 7. The method for forming a coating film on an inner wall of a water supply piping system according to claim 5, wherein the base film is white and the top film is blue. 8. The method of forming a coating film on an inner wall of a water supply piping system according to claim 1, wherein the base film and the top film have a mutually dark and light color relationship. 9. The method for forming a coating film on the inner wall of a water supply piping system according to any one of claims 1 to 8, wherein the physical properties of the one coating material and the other coating material are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17673288A JPH0226677A (en) | 1988-07-15 | 1988-07-15 | Formation of coating film to inner wall of water supply piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17673288A JPH0226677A (en) | 1988-07-15 | 1988-07-15 | Formation of coating film to inner wall of water supply piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0226677A true JPH0226677A (en) | 1990-01-29 |
Family
ID=16018818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17673288A Pending JPH0226677A (en) | 1988-07-15 | 1988-07-15 | Formation of coating film to inner wall of water supply piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574488A (en) * | 1993-12-22 | 1996-11-12 | Canon Kabushiki Kaisha | Liquid jet head, liquid jet head cartridge, and liquid jet apparatus |
| JP2013034951A (en) * | 2011-08-09 | 2013-02-21 | Taikoh Co Ltd | Method for cleaning piping and method for inspecting piping |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59228978A (en) * | 1983-06-10 | 1984-12-22 | Suriibondo:Kk | Method for sealing and corrosion-preventing inside surface in broken part of buried conduit or the like |
-
1988
- 1988-07-15 JP JP17673288A patent/JPH0226677A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59228978A (en) * | 1983-06-10 | 1984-12-22 | Suriibondo:Kk | Method for sealing and corrosion-preventing inside surface in broken part of buried conduit or the like |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574488A (en) * | 1993-12-22 | 1996-11-12 | Canon Kabushiki Kaisha | Liquid jet head, liquid jet head cartridge, and liquid jet apparatus |
| JP2013034951A (en) * | 2011-08-09 | 2013-02-21 | Taikoh Co Ltd | Method for cleaning piping and method for inspecting piping |
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