JP4570717B2 - Aqueous stain composition and substrate coloring method using the composition - Google Patents
Aqueous stain composition and substrate coloring method using the composition Download PDFInfo
- Publication number
- JP4570717B2 JP4570717B2 JP36487699A JP36487699A JP4570717B2 JP 4570717 B2 JP4570717 B2 JP 4570717B2 JP 36487699 A JP36487699 A JP 36487699A JP 36487699 A JP36487699 A JP 36487699A JP 4570717 B2 JP4570717 B2 JP 4570717B2
- Authority
- JP
- Japan
- Prior art keywords
- aqueous
- water
- composition
- stain composition
- aqueous stain
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Description
【０００１】
【発明の技術分野】
本発明は、水性ステイン組成物およびその組成物を用いた基材の着色方法に関し、さらに詳しくは、基材、特に木質素材等の多孔質部材に塗装した場合に、目ブクレが生じにくい水性ステイン組成物、およびその組成物を用いた基材の着色方法に関する。
【０００２】
【発明の技術的背景】
従来、多孔質部材たとえば木材の木目模様、質感等を活かすために着色剤を充填塗装した後、その塗装部を含む木材表面全面に透明塗料を塗装することが広く行なわれている。
上記着色剤として、従来は、有機溶剤を溶媒あるいは分散媒とする有機溶剤系着色剤が多用されている。
【０００３】
しかしながら、近年、このような有機溶剤系着色剤は、公害防止、危険防止および省資源等の観点から好ましくない。しかも、導管部分に充填された着色剤の乾燥硬化に長時間を要し、また、この硬化した着色剤が透明塗膜に移行して「にじみ」が発生し易いなどの欠点がある。
特開平６−２０７１３３号公報には、上記のような欠点を解消した多孔質素材の着色方法として、「表面に多孔部を有する素材の主として孔部分を着色するにあたり、着色剤として、着色顔料または染料を分散させた水性着色ステインを使用する、多孔質素材の着色方法」が開示されている。
【０００４】
しかしながら、この公報に開示されている着色方法により、木材等の多孔質部材表面に塗装をすると、目ブクレが生じ易いという問題がある。多孔質部材たとえば木質フロアー（フローリングボード）は、その表面に薄い化粧単板を貼り付けており、その化粧単板の厚さにより、通称厚単板（１．０〜３．０ｍｍ程度の厚さ）と薄単板（０．２ｍｍ程度の厚さ）に分類されている。中でも、厚単板は、素材に水性ステインを塗布すると目ブクレ（化粧単板表面の導管部分に水が浸入したときに起こる木質繊維の膨潤）を起こし易い性質があり、仕上がり状態に問題がある。このような目ブクレの原因は、木質繊維すなわちセルロース繊維間への水分子の浸入による膨潤である。特にアルカリ性側ではアルカリセルロースの生成のより木質繊維が膨潤し易い傾向にある。従来市販されている水性樹脂、たとえば水溶性アクリル樹脂や、ディスパージョン型アクリル樹脂は、アクリル酸、メタクリル酸、マレイン酸等を含む共重合体のカルボキシル基をアンモニア、アミン等でアルカリ性、通常ｐＨ８〜９に調製して水溶性化あるいはディスパージョン化されている。従来の水性ステイン組成物は、このようなアルカリ性の水溶性あるいはディスパージョン型アクリル樹脂を含有しているため、木質素材表面に、この水性ステイン組成物を塗布すると、アルカリセルロースが生成し、その結果、目ブクレが起きるという問題があった。
【０００５】
したがって、目ブクレが生じにくい水性ステイン組成物およびその組成物を用いた基材の着色方法の出現が望まれている。
【０００６】
【発明の目的】
本発明は、上記のような従来技術に伴う問題を解決しようとするものであって、目ブクレが生じにくい水性ステイン組成物およびその組成物を用いた基材の着色方法を提供することを目的としている。
【０００７】
【発明の概要】
本発明に係る水性ステイン組成物は、
ｐＨ７以下のアクリル樹脂からなる水性樹脂（Ａ）および水分散着色剤（Ｂ）を含有してなり、かつ、ｐＨが７以下であることを特徴としている。
また、本発明に係る基材の着色方法は、
基材の表面に、ｐＨ７以下のアクリル樹脂からなる水性樹脂（Ａ）および水分散着色剤（Ｂ）を含有してなり、かつ、ｐＨが７以下である水性ステイン組成物を、塗布し、その後硬化させることを特徴としている。
【０００８】
【発明の具体的説明】
以下に、本発明に係る水性ステイン組成物およびその組成物を用いた基材の着色方法について具体的に説明する。
まず、本発明に係る水性ステイン組成物について説明する。
本発明に係る水性ステイン組成物は、具体的には、水性樹脂（Ａ）および水分散着色剤（Ｂ）を水に混合分散してなり、紫外線硬化型の水性樹脂（Ａ）を使用する場合には、必要に応じてさらに光重合性モノマー、光増感剤等も含有していてもよい。
【０００９】
水性樹脂（Ａ）
本発明で用いられる水性樹脂（Ａ）は、ｐＨが７以下、好ましくは２〜６、特に好ましくは３〜５のアクリル樹脂である。本発明で用いられるアクリル樹脂は、水溶性樹脂あるいは水分散性樹脂（エマルジョン型およびコロイダルディスパージョン型樹脂を含む）であり、親水基の有無を問わず、また硬化方式も特に限定されず、常温硬化型、加熱硬化型あるいは光硬化型などのいずれでもよく、また１液型、２液硬化型のいずれであってもよい。このようなアクリル樹脂は、紫外線照射により硬化する、重合性不飽和基を有する不飽和樹脂であってもよい。
【００１０】
本発明で用いられるアクリル樹脂は、たとえばスチレン、メタクリル酸メチル、メタクリル酸エチル、メタクリル酸ブチル、メタクリル酸イソブチル等の硬質の非官能性単量体、メタクリル酸ヘキシル、メタクリル酸ラウリル、アクリル酸メチル、アクリル酸エチル、アクリル酸ブチル、アクリル酸イソブチル等の軟質の非官能性単量体、アクリル酸、メタクリル酸、マレイン酸等のカルボキシル基含有官能性単量体、（メタ）アクリル酸ヒドロキシエチル、（メタ）アクリル酸ヒドロキシプロピル等のヒドロキシ基含有官能性単量体、（メタ）アクリル酸アミド等のアミド基含有官能性単量体、（メタ）アクリル酸グリシジル等のグリシジル基含有官能性単量体などを適宜組み合わせて、ラジカル重合反応を行ない、得られた（メタ）アクリル酸エステル共重合体を部分的に酸で加水分解したり、あるいは上記ラジカル重合反応により得られた（メタ）アクリル酸共重合体の過剰のカルボキシル基を一部エステル化するなどしてｐＨを７以下に調整することにより得ることができる。
【００１１】
また、上記のような不飽和樹脂としては、たとえば、
アクリル樹脂に、（メタ）アクリル酸を直接またはポリイソシアネート化合物等を介して付加させて側鎖および／または末端に重合性不飽和二重結合を導入した不飽和アクリル樹脂；
ウレタン変性アクリル樹脂に、（メタ）アクリル酸を付加させて側鎖および／または末端に重合性不飽和二重結合を導入した不飽和アクリル樹脂などが挙げられる。
【００１２】
上記のようなアクリル樹脂のうち、カルボキシル基、アミノ基等の親水基を有する樹脂は、そのまま水に溶解あるいは分散させることができる。また、親水基を有しない樹脂は、乳化剤などを用いて水中に分散させることができる。
本発明で用いられるアクリル樹脂は、アニオン系、ノニオン系およびカチオン系のいずれでもよい。
【００１３】
アクリル樹脂が常温硬化型あるいは加熱硬化型の樹脂である場合、従来公知の架橋剤（硬化剤）、たとえばメラミン樹脂、ポリアミン、アミンアダクト、ポリアミド、ブロックポリイソシアネート化合物などを、本発明の目的を損なわない範囲で適宜選択して併用することができる。
また、アクリル樹脂が上記不飽和樹脂の紫外線硬化型樹脂である場合、この不飽和樹脂の他に、重合性不飽和二重結合を有する光重合性モノマーおよび／または光増感剤を、本発明の目的を損なわない範囲で併用することができる。
【００１４】
このような光重合性モノマーとしては、具体的には、スチレン、酢酸ビニル、（メタ）アクリル酸エステル、（メタ）アクリロニトリル、グリシジル（メタ）アクリレート、さらには、トリプロピレングリコールジアクリレート、1,6-ヘキサンジオールジアクリレートなどを挙げることができる。
上記光増感剤としては、具体的には、ベンゾイン、ベンゾインメチルエーテル、ベンゾインエチルエーテル、ベンゾインイソプロピルエーテル、ベンゾインイソブチルエーテル、2-メチルベンゾイン、ベンゾフェノン、ミヒラーケトン、ベンジル、ベンジルジメチルケタール、アントラキノン、メチルアントラキノン、ジアセチルアセトフェノン、ジフェニルスルフィド、アントラセンなどが挙げられる。
【００１５】
本発明に係る水性ステイン組成物は、ｐＨ７以下の水溶性あるいは水分散性のアクリル樹脂を水性樹脂（Ａ）として用い、その組成物全体のｐＨも７以下であるため、アルカリセルロースに起因する木質繊維の膨潤はなく、目ブクレの発生を抑制することができる。また、本発明で用いられるｐＨ７以下のアクリル樹脂は、分散安定性が良好で、少なくとも１カ月間は貯蔵可能であるので、実用上問題は生じない。
【００１６】
水分散着色剤（Ｂ）
本発明で用いられる水分散着色剤（Ｂ）としては、従来公知の水分散性の着色顔料や、水可溶性の染料を使用することができる。水分散着色剤（Ｂ）は、有機系、無機系、天然物、合成物のいずれでもよい。これらの水分散着色剤（Ｂ）は、単独で、あるいは２種以上組み合わせて使用することができる。
【００１７】
水分散性の着色顔料としては、具体的には、酸化チタン、カーボンブラック、ナフトールレッド、ジスアゾイエロー、フタロシアニンブルー、フタロシアニングリーン、弁柄等を挙げることができる。
また、水可溶性の染料としては、具体的には、ダイレクトスカーレット、ダイレクトオレンジＲ、ダイレクトファストオレンジＷＳ、クリンフェニンＧ、ダイレクトダークグリーンＢ、ダイレクトブラウンＫＧＧ、ダイレクトブルーＢＢ、ダイレクトブラックＥＸ、ローゼリン、アシッドアゾルビン、アシッドオレンジＢ、メタニルエロー、ブリリアントミリンググリーンＢ、アシッドブラウンＲ、アシッドブルーブラック１０Ｂ等を挙げることができる。
【００１８】
上記のような水分散着色剤（Ｂ）は、水性ステイン組成物中に、通常０．１〜５０重量％、好ましくは０．１〜３０重量％、特に好ましくは０．５〜２０重量％の割合で存在している。
水性ステイン組成物
本発明に係る水性ステイン組成物は、上記のような水性樹脂（Ａ）および水分散性着色剤（Ｂ）を含有している。この組成物のｐＨは７以下、好ましくは２〜６、特に好ましくは３〜５である。
【００１９】
本発明に係る水性ステイン組成物は、上記のような水性樹脂（Ａ）および水分散着色剤（Ｂ）、さらには必要に応じて光重合性モノマー、光増感剤を、従来公知の方法で混合攪拌して得ることができる。
本発明に係る水性ステイン組成物中に、上記各成分の他に、必要に応じて、分散剤、沈降防止剤、消泡剤、ぬれ剤、増粘剤等の水性塗料に添加される従来公知の添加剤を、本発明の目的を損なわない範囲で配合することができる。
【００２０】
次に、本発明に係る基材の着色方法について説明する。
本発明に係る基材の着色方法では、基材の表面に、上述した本発明に係る水性ステイン組成物を塗布し、その後硬化させる。
本発明で用いられる基材は、多孔質部材あってもよいし、多孔質部材でなくてもよい。多孔質部材は、少なくともその表面が多孔質であればよく、その内部が多孔質でなくてもよいし、また多孔質であってもよい。本発明においては、多孔質部材表面の孔の大きさは、特に制限されない。このような多孔質部材としては、具体的には、木質素材；発泡プラスチック素材；スレート、コンクリート、セメント製品等の無機質素材などが挙げられる。これらの多孔質部材の形状は、特に制限はなく、たとえば板状、シート状、棒状、曲板状であってもよく、また、これらの形状の組み合わせた形状であってもよい。また、これらの多孔質部材は、その表面にＶ字またＵ字等の溝が１本または複数本形成されていてもよい。
【００２１】
本発明に係る基材の着色方法では、本発明に係る水性ステイン組成物の塗装時における粘度は、被塗装物たとえば多孔質部材の種類、使用する塗装機、塗装場における雰囲気温度等によっても異なるが、太佑機材（株）製ザンカップＺｃ＃２で、通常６〜３０秒であり、固形分は、通常１〜５０重量％、好ましくは５〜２０重量％である。
【００２２】
本発明においては、ロールコーター、フローコーター、エアースプレーガン、エアレススプレーガン等の塗装機で、多孔質部材等の基材表面に、水性ステイン組成物を塗布する。水性ステイン組成物の塗布量は、その組成物の種類および基材たとえば多孔質部材の種類等により異なるが、多孔質部材がたとえば突き板合板である場合、ウェット状態での塗布量は通常１〜４７ｇ／ｍ2、好ましくは５．５〜２７．５ｇ／ｍ2である。
【００２３】
上記のようにして多孔質部材表面に水性ステイン組成物を塗布した後、必要に応じて、多孔質部材表面に塗布された余分な水性ステイン組成物をワイピングして、多孔質部材表面の孔部以外に塗着した水性ステイン組成物を除去するとともに、その余分な水性ステイン組成物を多孔質部材の孔内部に充填する。
このワイピングは、たとえばリバースロールコーター、ブラシワイピング、布製ベルトワイピングなどの装置を用いて行なわれる。
【００２４】
水性ステイン組成物を上記のようにして塗布した後、または上記ワイピングを行なった後、多孔質部材の表面に形成された塗布膜、さらには孔内部に充填された水性ステイン組成物を硬化させる。
本発明では、使用する水性ステイン組成物の種類によって、その硬化方法を適宜選択し、上記の塗布膜等を室温で放置して硬化させるか、あるいは加熱して硬化させるか、または紫外線を照射して硬化させる。
【００２５】
本発明では、上記のようにして得られた水性ステイン組成物の硬化塗膜の上に、さらにクリヤー塗膜を形成することが好ましい。
上記クリヤー塗膜形成に使用されるクリヤー塗料としては、従来公知のクリヤー塗料、たとえばアクリル樹脂、ポリウレタン樹脂、ポリエステル樹脂、エポキシ樹脂等の樹脂を主成分とする、常温硬化型、加熱硬化型もしくは紫外線硬化型の水性塗料または有機溶剤型塗料が挙げられる。
【００２６】
【発明の効果】
本発明に係る水性ステイン組成物は、ｐＨ７以下のアクリル樹脂からなる水性樹脂（Ａ）および水分散着色剤（Ｂ）を含有し、かつ、この組成物のｐＨが７以下であるので、基材特に木質素材等の多孔質部材に塗装した場合、目ブクレが生じにくいという効果がある。
【００２７】
本発明に係る基材の着色方法によれば、上記水性ステイン組成物を用いるので、目ブクレが殆ど認められない木質素材等の多孔質部材の塗装品が得られる。
【００２８】
【実施例】
以下、本発明を実施例により説明するが、本発明は、これらの実施例により何ら限定されるものではない。
【００２９】
【実施例１】
水性樹脂（水溶性スチレンアクリル樹脂、固形分５０．５％、ｐＨ＝４、粘度１５００ｃＰｓ）３０重量部と水５０重量部をディスパーサーで攪拌しながら、水分散着色剤（オリエント化学社製着色加工顔料、商品名マイクロピグモ エロー３重量部と、商品名マイクロピグモ レッド２重量部と、商品名マイクロピグモ ブラック１重量部と、商品名マイクロピグモ ホワイト４重量部との混合物）１０重量部を添加し、ｐＨ５の水性ステイン組成物を得た。
【００３０】
次いで、この水性ステイン組成物を、木質床材（フローリングボード）の表面にスポンジロールコーターを用い、２７．５ｇ／ｍ2の塗布量で塗布した後、８０℃で１分間、熱風乾燥した。
次いで、その水性ステイン組成物の塗膜上に、ＵＶ下塗り塗料（商品名 オーレックスＮｏ．８３７Ｆ−４ＱＤ、中国塗料（株）製）をロールコーターを用い、２２ｇ／ｍ2の塗布量で塗布してＵＶ硬化させた後、さらにＵＶ中塗り塗料（商品名 オーレックスＮｏ．６７７Ｂ、中国塗料（株）製）、ＵＶ上塗り塗料（商品名 オーレックスＮｏ．８５８Ｇ−３０、中国塗料（株）製）を順次、ＵＶ下塗り塗料の場合と同様に塗布、ＵＶ硬化させ、木質床材塗装品を得た。
【００３１】
得られた木質床材塗装品について、目ブクレの発生状態を観察した。
目ブクレの抑制効果は、木材の導管部分への水の浸入による膨潤具合（フクレ）で評価した。
【００３２】
＜目ブクレの評価基準＞
Ａ ： 導管部凹凸無し。
Ｂ ： 導管部凹凸若干有り。
Ｃ ： 導管部凹凸有り。
【００３３】
【実施例２】
実施例１において、実施例１の水性樹脂の代わりに、水性樹脂（水溶性スチレンアクリル樹脂、固形分３５％、ｐＨ＝７、粘度２６００ｃＰｓ）を用いた以外は、実施例１と同様にして、水性ステイン組成物を得た。以下、実施例１と同様にして、目ブクレの抑制効果を評価した。
【００３４】
その結果を第１表に示す。
【００３５】
【比較例１】
実施例１において、実施例１の水性樹脂の代わりに、水性樹脂（水溶性スチレンアクリル樹脂、固形分３５％、ｐＨ＝９、粘度２５００ｃＰｓ）を用いた以外は、実施例１と同様にして、水性ステイン組成物を得た。以下、実施例１と同様にして、目ブクレの抑制効果を評価した。
【００３６】
その結果を第１表に示す。
【００３７】
【表１】
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an aqueous stain composition and a method for coloring a base material using the composition, and more particularly, an aqueous stain that is less likely to cause eye blur when applied to a base material, particularly a porous member such as a wood material. The present invention relates to a composition and a method for coloring a substrate using the composition.
[0002]
TECHNICAL BACKGROUND OF THE INVENTION
2. Description of the Related Art Conventionally, it has been widely practiced to apply a transparent paint to the entire surface of a wood including a painted portion after filling with a colorant in order to make use of a porous member such as a wood grain pattern or texture.
Conventionally, an organic solvent-based colorant using an organic solvent as a solvent or a dispersion medium has been frequently used as the colorant.
[0003]
However, in recent years, such organic solvent-based colorants are not preferable from the viewpoints of pollution prevention, danger prevention, resource saving, and the like. In addition, it takes a long time to dry and cure the colorant filled in the conduit portion, and the cured colorant is transferred to the transparent coating film to cause “bleeding”.
In JP-A-6-207133, as a method for coloring a porous material that has solved the above-mentioned drawbacks, “when coloring mainly pores of a material having a porous part on the surface, a coloring pigment or A method for coloring a porous material using an aqueous colored stain in which a dye is dispersed is disclosed.
[0004]
However, when the surface of a porous member such as wood is coated by the coloring method disclosed in this publication, there is a problem that eye blur is likely to occur. A porous member, such as a wooden floor (flooring board), has a thin veneer attached to its surface, and the so-called thick veneer (thickness of about 1.0 to 3.0 mm) depends on the thickness of the veneer. ) And thin single plate (thickness of about 0.2 mm). Above all, thick veneer has a tendency to cause eye buckle (swelling of wood fibers that occurs when water enters the conduit part on the surface of the veneer) when applying aqueous stain to the material, and there is a problem in the finished state. . The cause of such eye blurring is swelling due to the penetration of water molecules between wood fibers, that is, cellulose fibers. In particular, on the alkaline side, the wood fibers tend to swell more easily due to the formation of alkali cellulose. Conventionally commercially available water-based resins, such as water-soluble acrylic resins and dispersion-type acrylic resins, are alkaline with ammonia, amine, etc., in the carboxyl group of a copolymer containing acrylic acid, methacrylic acid, maleic acid, etc., usually pH 8 to No. 9 is made water-soluble or dispersed. Since the conventional aqueous stain composition contains such an alkaline water-soluble or dispersion-type acrylic resin, when this aqueous stain composition is applied to the surface of a wooden material, alkali cellulose is produced, and as a result. , There was a problem that eye blurring occurred.
[0005]
Therefore, the appearance of an aqueous stain composition that hardly causes eye blurring and a coloring method for a substrate using the composition is desired.
[0006]
OBJECT OF THE INVENTION
The present invention is intended to solve the problems associated with the prior art as described above, and an object thereof is to provide an aqueous stain composition in which eye blur is unlikely to occur and a method for coloring a substrate using the composition. It is said.
[0007]
SUMMARY OF THE INVENTION
The aqueous stain composition according to the present invention comprises:
It is characterized by containing an aqueous resin (A) comprising an acrylic resin having a pH of 7 or less and a water-dispersed colorant (B), and having a pH of 7 or less.
Moreover, the coloring method of the base material according to the present invention includes:
On the surface of the base material, an aqueous stain composition containing an aqueous resin (A) composed of an acrylic resin having a pH of 7 or less and a water dispersion colorant (B) and having a pH of 7 or less is applied, and thereafter It is characterized by being cured.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the aqueous stain composition according to the present invention and the coloring method of the substrate using the composition will be specifically described.
First, the aqueous stain composition according to the present invention will be described.
Specifically, the aqueous stain composition according to the present invention is obtained by mixing and dispersing an aqueous resin (A) and a water-dispersed colorant (B) in water, and using an ultraviolet curable aqueous resin (A). May further contain a photopolymerizable monomer, a photosensitizer and the like, if necessary.
[0009]
Aqueous resin (A)
The aqueous resin (A) used in the present invention is an acrylic resin having a pH of 7 or less, preferably 2 to 6, particularly preferably 3 to 5. The acrylic resin used in the present invention is a water-soluble resin or a water-dispersible resin (including emulsion type and colloidal dispersion type resins), whether or not there is a hydrophilic group, and the curing method is not particularly limited. Any of a curable type, a heat curable type, a photocurable type, and the like may be used, and either a one-component type or a two-component curable type may be used. Such an acrylic resin may be an unsaturated resin having a polymerizable unsaturated group that is cured by ultraviolet irradiation.
[0010]
The acrylic resin used in the present invention is, for example, a hard non-functional monomer such as styrene, methyl methacrylate, ethyl methacrylate, butyl methacrylate, isobutyl methacrylate, hexyl methacrylate, lauryl methacrylate, methyl acrylate, Soft non-functional monomers such as ethyl acrylate, butyl acrylate and isobutyl acrylate, carboxyl group-containing functional monomers such as acrylic acid, methacrylic acid and maleic acid, hydroxyethyl (meth) acrylate, ( Hydroxy group-containing functional monomers such as (meth) hydroxypropyl acrylate, amide group-containing functional monomers such as (meth) acrylic acid amide, and glycidyl group-containing functional monomers such as (meth) acrylic acid glycidyl Etc. are combined as appropriate to perform radical polymerization reaction, and the (meth) actol obtained is obtained. The pH can be adjusted by partially hydrolyzing the ester ester copolymer with acid, or by partially esterifying excess carboxyl groups of the (meth) acrylic acid copolymer obtained by the radical polymerization reaction. It can be obtained by adjusting to 7 or less.
[0011]
Moreover, as the above unsaturated resin, for example,
An unsaturated acrylic resin in which (meth) acrylic acid is added to the acrylic resin directly or via a polyisocyanate compound or the like to introduce a polymerizable unsaturated double bond at the side chain and / or the terminal;
Examples thereof include an unsaturated acrylic resin obtained by adding (meth) acrylic acid to a urethane-modified acrylic resin and introducing a polymerizable unsaturated double bond at a side chain and / or a terminal.
[0012]
Among the acrylic resins as described above, a resin having a hydrophilic group such as a carboxyl group or an amino group can be dissolved or dispersed in water as it is. A resin having no hydrophilic group can be dispersed in water using an emulsifier or the like.
The acrylic resin used in the present invention may be any of anionic, nonionic and cationic.
[0013]
When the acrylic resin is a room temperature curable resin or a heat curable resin, a conventionally known crosslinking agent (curing agent) such as a melamine resin, a polyamine, an amine adduct, a polyamide, or a block polyisocyanate compound is impaired. It can be selected and used in combination as long as there is no range.
Further, when the acrylic resin is an ultraviolet curable resin of the unsaturated resin, in addition to the unsaturated resin, a photopolymerizable monomer and / or photosensitizer having a polymerizable unsaturated double bond is used in the present invention. These can be used in a range that does not impair the purpose.
[0014]
Specific examples of such a photopolymerizable monomer include styrene, vinyl acetate, (meth) acrylic ester, (meth) acrylonitrile, glycidyl (meth) acrylate, tripropylene glycol diacrylate, 1,6 -Hexanediol diacrylate and the like.
Specific examples of the photosensitizer include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, 2-methylbenzoin, benzophenone, Michler's ketone, benzyl, benzyldimethyl ketal, anthraquinone, and methylanthraquinone. , Diacetylacetophenone, diphenyl sulfide, anthracene and the like.
[0015]
The aqueous stain composition according to the present invention uses a water-soluble or water-dispersible acrylic resin having a pH of 7 or less as the aqueous resin (A), and the pH of the entire composition is also 7 or less. There is no swelling of the fiber, and the occurrence of eye blur can be suppressed. Further, the acrylic resin having a pH of 7 or less used in the present invention has good dispersion stability and can be stored for at least one month.
[0016]
Water-dispersed colorant (B)
As the water-dispersible colorant (B) used in the present invention, conventionally known water-dispersible color pigments and water-soluble dyes can be used. The water-dispersed colorant (B) may be any of organic, inorganic, natural products, and synthetic products. These water-dispersed colorants (B) can be used alone or in combination of two or more.
[0017]
Specific examples of water-dispersible color pigments include titanium oxide, carbon black, naphthol red, disazo yellow, phthalocyanine blue, phthalocyanine green, and petals.
Specific examples of water-soluble dyes include Direct Scarlet, Direct Orange R, Direct Fast Orange WS, Clinphenine G, Direct Dark Green B, Direct Brown KGG, Direct Blue BB, Direct Black EX, Roselin, Acid Azo Examples include Rubin, Acid Orange B, Methanil Yellow, Brilliant Milling Green B, Acid Brown R, Acid Blue Black 10B, and the like.
[0018]
The water-dispersed colorant (B) as described above is usually 0.1 to 50% by weight, preferably 0.1 to 30% by weight, particularly preferably 0.5 to 20% by weight in the aqueous stain composition. Present in proportion.
Aqueous stain composition The aqueous stain composition according to the present invention contains the aqueous resin (A) and the water-dispersible colorant (B) as described above. The pH of the composition is 7 or less, preferably 2 to 6, particularly preferably 3 to 5.
[0019]
The aqueous stain composition according to the present invention comprises an aqueous resin (A) and a water-dispersed colorant (B) as described above, and if necessary, a photopolymerizable monomer and a photosensitizer by a conventionally known method. It can be obtained by mixing and stirring.
In the aqueous stain composition according to the present invention, in addition to the above-mentioned components, conventionally known additives that are added to aqueous paints such as a dispersant, an anti-settling agent, an antifoaming agent, a wetting agent, and a thickener as necessary. These additives can be blended within a range that does not impair the object of the present invention.
[0020]
Next, the coloring method of the base material which concerns on this invention is demonstrated.
In the base material coloring method according to the present invention, the above-described aqueous stain composition according to the present invention is applied to the surface of the base material and then cured.
The substrate used in the present invention may be a porous member or may not be a porous member. The porous member only needs to have a porous surface, and the inside of the porous member may not be porous or may be porous. In the present invention, the size of the pores on the surface of the porous member is not particularly limited. Specific examples of such porous members include wood materials; foamed plastic materials; inorganic materials such as slate, concrete, and cement products. The shape of these porous members is not particularly limited, and may be, for example, a plate shape, a sheet shape, a rod shape, or a curved plate shape, or a combination of these shapes. In addition, these porous members may have one or a plurality of V-shaped or U-shaped grooves formed on the surface thereof.
[0021]
In the base material coloring method according to the present invention, the viscosity of the aqueous stain composition according to the present invention at the time of coating varies depending on the object to be coated, for example, the type of porous member, the coating machine to be used, the ambient temperature at the coating station, and the like. However, it is a Zancup Zc # 2 made by Dazai Equipment Co., Ltd., and usually 6 to 30 seconds, and the solid content is usually 1 to 50% by weight, preferably 5 to 20% by weight.
[0022]
In the present invention, the aqueous stain composition is applied to the surface of a substrate such as a porous member with a coating machine such as a roll coater, a flow coater, an air spray gun, or an airless spray gun. The coating amount of the aqueous stain composition varies depending on the type of the composition and the substrate, for example, the type of the porous member, but when the porous member is, for example, a veneer plywood, the coating amount in the wet state is usually 1 to 1. 47 g / m 2, preferably 5.5~27.5g / m 2.
[0023]
After applying the aqueous stain composition to the porous member surface as described above, if necessary, the excess aqueous stain composition applied to the porous member surface is wiped to form pores on the porous member surface. In addition to removing the applied aqueous stain composition, the excess aqueous stain composition is filled in the pores of the porous member.
This wiping is performed using, for example, a reverse roll coater, brush wiping, cloth belt wiping, or the like.
[0024]
After the aqueous stain composition is applied as described above or after the wiping, the coating film formed on the surface of the porous member, and further the aqueous stain composition filled in the pores are cured.
In the present invention, the curing method is appropriately selected depending on the type of the aqueous stain composition to be used, and the above-mentioned coating film or the like is left to cure at room temperature, cured by heating, or irradiated with ultraviolet rays. To cure.
[0025]
In the present invention, it is preferable to further form a clear coating film on the cured coating film of the aqueous stain composition obtained as described above.
As the clear coating used for forming the above clear coating film, a conventionally known clear coating such as an acrylic resin, a polyurethane resin, a polyester resin, an epoxy resin, or the like as a main component, a room temperature curing type, a heat curing type, or an ultraviolet ray is used. Examples thereof include curable water-based paints and organic solvent-type paints.
[0026]
【The invention's effect】
The aqueous stain composition according to the present invention contains an aqueous resin (A) composed of an acrylic resin having a pH of 7 or less and a water-dispersed colorant (B), and the pH of the composition is 7 or less. In particular, when painted on a porous member such as a wooden material, there is an effect that eye blur is less likely to occur.
[0027]
According to the method for coloring a substrate according to the present invention, since the aqueous stain composition is used, a coated product of a porous member such as a wood material in which almost no blurring is observed can be obtained.
[0028]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited at all by these Examples.
[0029]
[Example 1]
While dispersing 30 parts by weight of an aqueous resin (water-soluble styrene acrylic resin, solid content 50.5%, pH = 4, viscosity 1500 cPs) and 50 parts by weight of water with a disperser, a water dispersion colorant (coloring process manufactured by Orient Chemical Co., Ltd.) 10 parts by weight of a pigment, a mixture of 3 parts by weight of micropigmo yellow, 2 parts by weight of micropigmo red, 1 part by weight of micropigmo black, and 4 parts by weight of micropigmo white) An aqueous stain composition having a pH of 5 was obtained.
[0030]
Next, this aqueous stain composition was applied to the surface of a wooden flooring (flooring board) at a coating amount of 27.5 g / m 2 using a sponge roll coater, and then dried with hot air at 80 ° C. for 1 minute.
Next, a UV undercoat (trade name: Aurex No. 837F-4QD, manufactured by China Paint Co., Ltd.) was applied onto the coating film of the aqueous stain composition at a coating amount of 22 g / m 2 using a roll coater. After UV curing, UV intermediate coating (trade name: Aurex No. 677B, manufactured by China Paint Co., Ltd.), UV top coat (trade name: Aurex No. 858G-30, manufactured by China Paint Co., Ltd.) Were applied and UV cured in the same manner as in the case of the UV undercoating paint to obtain a wooden flooring coated product.
[0031]
About the obtained wooden floor covering coating product, the occurrence state of eye blur was observed.
The inhibitory effect of eye bulges was evaluated by the degree of swelling due to water intrusion into the wood conduit.
[0032]
<Evaluation criteria for eyes>
A: No irregularities on the conduit.
B: Conduit part unevenness is slightly present.
C: Convex part unevenness.
[0033]
[Example 2]
In Example 1, in place of the aqueous resin of Example 1, an aqueous resin (water-soluble styrene acrylic resin, solid content 35%, pH = 7, viscosity 2600 cPs) was used in the same manner as in Example 1, An aqueous stain composition was obtained. Hereinafter, in the same manner as in Example 1, the effect of suppressing eye blur was evaluated.
[0034]
The results are shown in Table 1.
[0035]
[Comparative Example 1]
In Example 1, instead of the aqueous resin of Example 1, an aqueous resin (water-soluble styrene acrylic resin, solid content 35%, pH = 9, viscosity 2500 cPs) was used in the same manner as in Example 1, An aqueous stain composition was obtained. Hereinafter, in the same manner as in Example 1, the effect of suppressing eye blur was evaluated.
[0036]
The results are shown in Table 1.
[0037]
[Table 1]
Claims (10)
請求項１に記載の木質素材の塗装品。The woody material coated product according to claim 1, wherein the water-dispersible colorant is present in a proportion of 0.1 to 50% by weight in the aqueous stain composition.
請求項６に記載の木質基材の着色方法。The method for coloring a woody substrate according to claim 6, wherein the water-dispersible colorant is present in the aqueous stain composition in a proportion of 0.1 to 50% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36487699A JP4570717B2 (en) | 1999-12-22 | 1999-12-22 | Aqueous stain composition and substrate coloring method using the composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36487699A JP4570717B2 (en) | 1999-12-22 | 1999-12-22 | Aqueous stain composition and substrate coloring method using the composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001181552A JP2001181552A (en) | 2001-07-03 |
| JP4570717B2 true JP4570717B2 (en) | 2010-10-27 |
Family
ID=18482894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36487699A Expired - Fee Related JP4570717B2 (en) | 1999-12-22 | 1999-12-22 | Aqueous stain composition and substrate coloring method using the composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4570717B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5133481B2 (en) * | 2001-09-25 | 2013-01-30 | 関西ペイント株式会社 | Repair painting method |
| JP4948850B2 (en) * | 2006-03-02 | 2012-06-06 | 中国塗料株式会社 | Multilayer coating film, base material provided with the multilayer coating film, and production method thereof |
| JP7012993B2 (en) * | 2017-08-10 | 2022-01-31 | ナトコ株式会社 | A method for producing a coating material of a stain coating composition, a photocurable coating composition, a coating material and a porous material. |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119665A (en) * | 1984-07-06 | 1986-01-28 | Toyo Soda Mfg Co Ltd | Coloring material and production thereof |
| JPH05138118A (en) * | 1991-11-20 | 1993-06-01 | Nippon Paint Co Ltd | Inorganic siding material and production thereof |
| JPH0663497A (en) * | 1992-08-21 | 1994-03-08 | Kansai Paint Co Ltd | Cooring method for porous material |
| JPH08325508A (en) * | 1994-04-21 | 1996-12-10 | Chugoku Marine Paints Ltd | Water-based coating material composition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3329694A1 (en) * | 1983-08-17 | 1985-03-07 | Dr. Wolman Gmbh, 7573 Sinzheim | AQUEOUS WOOD PRESERVATIVE |
| DD235433A1 (en) * | 1985-03-15 | 1986-05-07 | Wtz Holzverarbeitende Ind | METHOD FOR THE CHEMICAL FAIRING OF VENEERS |
| JPH01210341A (en) * | 1988-02-19 | 1989-08-23 | Dainippon Printing Co Ltd | Method for manufacturing decorative member having recession and protrusion on surface thereof |
| JPH04278303A (en) * | 1991-03-06 | 1992-10-02 | Daiken Trade & Ind Co Ltd | Manufacture of resin treated ligneous material |
| JP3315177B2 (en) * | 1993-01-08 | 2002-08-19 | 関西ペイント株式会社 | How to color porous materials |
-
1999
- 1999-12-22 JP JP36487699A patent/JP4570717B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119665A (en) * | 1984-07-06 | 1986-01-28 | Toyo Soda Mfg Co Ltd | Coloring material and production thereof |
| JPH05138118A (en) * | 1991-11-20 | 1993-06-01 | Nippon Paint Co Ltd | Inorganic siding material and production thereof |
| JPH0663497A (en) * | 1992-08-21 | 1994-03-08 | Kansai Paint Co Ltd | Cooring method for porous material |
| JPH08325508A (en) * | 1994-04-21 | 1996-12-10 | Chugoku Marine Paints Ltd | Water-based coating material composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001181552A (en) | 2001-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05271614A (en) | Water-based pigmented coating composition and method for applying the same | |
| JP5551337B2 (en) | Water-based colorful pattern paint | |
| JP4570717B2 (en) | Aqueous stain composition and substrate coloring method using the composition | |
| US20060234075A1 (en) | Ink-accepting layer forming material and aqueous ink | |
| KR100855093B1 (en) | Method of preparing a floor material having high hardness and composition used for the method | |
| JPH01502032A (en) | Water-based, pigmented two-component lacquer for single-layer coating of finishing sheets and seamless borders | |
| JP2004182789A (en) | Multicolor coating composition | |
| JP4014315B2 (en) | Aqueous stain composition for porous member and method for coloring porous member | |
| CN102029254A (en) | Adjusting method for film thickness of varnish coating film, varnish coating materials, and building | |
| JP2002155240A (en) | Bright coating composition, method for forming film and multilayered film | |
| TW515828B (en) | Multi-layer coat-finishing method by use of aqueous coating composition | |
| JP3315177B2 (en) | How to color porous materials | |
| JPS6335184B2 (en) | ||
| JPH01170700A (en) | Finish processing agent for leather and leather like material | |
| JP2000167479A (en) | Method for forming coating film having multicolored pattern | |
| CN101560350B (en) | Water-base adhesion force enhancing primer for ultraviolet light curing and production method thereof | |
| JPS58208352A (en) | Method for forming coating film having multicolored pattern and paint | |
| JPS6071067A (en) | Method for coating multi-color pattern | |
| JP2001049826A (en) | Method for repairing ceramic tile surface | |
| JPH11116860A (en) | Multicolored pattern coating composition and finishing of coating with the same | |
| JP3745453B2 (en) | Aqueous colored stain composition for porous member, UV curable coating composition, and coating method using the same | |
| JP3836522B2 (en) | Multicolored pattern finishing method | |
| CN105176268B (en) | A kind of water-based UV colouring agents and preparation method thereof | |
| JP2023024372A (en) | Coating formation method and laminated coating | |
| JP7241001B2 (en) | Paint for colored coating layer and coating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060209 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091027 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091228 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100316 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100421 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100727 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100811 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130820 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4570717 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |