JP2018119291A - Coating agent for building interior and interior surface coating method - Google Patents
Coating agent for building interior and interior surface coating method Download PDFInfo
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本発明は建築物内装用塗剤およびこの塗剤を用いた内装面塗装方法に関する。 The present invention relates to a building interior coating material and an interior surface coating method using the coating material.
建築物の内装面、特に漆喰壁の表面は、漆喰壁の特徴であるホルムアルデヒドの吸着分解機能や消臭機能などを発揮させるために、漆喰壁の厚さは５〜１０ｍｍとなっている。また、漆喰壁を施工するにも、左官業者などの専門業者による施工を必要とし、材料および施工費用も過大になりつつある。 The interior surface of the building, particularly the surface of the plaster wall, has a thickness of 5 to 10 mm in order to exhibit the function of adsorption and decomposition of formaldehyde and the deodorizing function, which are the characteristics of the plaster wall. In addition, construction of a plaster wall requires construction by a specialist such as a plasterer, and materials and construction costs are becoming excessive.
壁面リフォーム方法として、建材の表面に厚さ０．２〜１ｍｍの厚さに漆喰を形成することが開示されており、漆喰材料として、帆立貝の貝殻の微粉末に、微量放射線を発する鉱石の粉末を混入した漆喰が知られている（特許文献１）。また、水酸化カルシウムとシリカ粉を配合した塗料組成物（特許文献２）、水酸化カルシウムとセピオライト粉末を配合した調湿複合塗材（特許文献３）がそれぞれ開示されている。 As a wall remodeling method, it is disclosed that stucco is formed to a thickness of 0.2 to 1 mm on the surface of a building material. As a stucco material, ore powder that emits trace radiation to scallop shell fine powder There is known a plaster mixed with (Patent Document 1). Moreover, the coating composition (patent document 2) which mix | blended calcium hydroxide and the silica powder, and the humidity control composite coating material (patent document 3) which mix | blended calcium hydroxide and sepiolite powder are disclosed, respectively.
しかしながら、上記従来の漆喰材料は、建築物の内装面に塗布する場合、２〜５ｋｇ／ｍ2の塗布量でなければ、漆喰独特の白さを発揮させることが困難であった。また、初めての人や家庭の主婦は塗装することが困難であった。 However, when the above-mentioned conventional plaster material is applied to the interior surface of a building, it is difficult to exhibit the whiteness unique to plaster unless the coating amount is 2 to 5 kg / m 2 . In addition, it was difficult for the first person or the housewife to paint.
本発明は、このような問題に対処するためになされたもので、初めての人や家庭の主婦がまるで壁の拭き掃除をするかのように漆喰壁の施工ができる建築物内装用塗剤およびこの塗剤を用いた内装面塗装方法を提供することを目的とする。 The present invention has been made in order to cope with such problems, and a paint for interior of a building that can be used to construct a plastered wall as if a first person or a housewife was to wipe the wall. It aims at providing the interior surface coating method using a coating agent.
本発明の建築物内装用塗剤は、建築物の内装面を塗装するための建築物内装用塗剤である。この塗剤により塗装される建築物内装面は、非吸水性の鏡面を除いた吸水性表面および凹凸表面から選ばれた少なくとも１つの表面であり、塗剤は、水酸化カルシウムの一次粒子を媒体中に分散させた乳化物状の液状物であることを特徴とする。 The coating material for building interior of the present invention is a coating material for building interior for painting the interior surface of the building. The building interior surface to be coated with this coating agent is at least one surface selected from a water-absorbing surface and an uneven surface excluding a non-water-absorbing mirror surface, and the coating agent uses primary particles of calcium hydroxide as a medium. It is characterized by being an emulsion-like liquid material dispersed therein.
建築物内装用塗剤を構成する水酸化カルシウムの一次粒子は、平均粒子径が１００μｍ以下の鱗片状粒子であることを特徴とする。また、同じく塗剤を構成する媒体が水または水性エマルジョンであることを特徴とする。 The primary particles of calcium hydroxide constituting the coating material for building interiors are scaly particles having an average particle diameter of 100 μm or less. The medium constituting the coating agent is also water or an aqueous emulsion.
本発明の内装面塗装方法は、非吸水性の鏡面を除いた吸水性表面および凹凸表面から選ばれた少なくとも１つの表面に、上記本発明の建築物内装用塗剤を粗塗装する工程と、この粗塗装後の表面を仕上塗装する工程とを備えることを特徴とする。 The interior surface coating method of the present invention comprises a step of roughly coating the building interior coating composition of the present invention on at least one surface selected from a water-absorbing surface and an uneven surface excluding a non-water-absorbing mirror surface; And a step of finish-coating the surface after the rough coating.
本発明の建築物内装用塗剤は、吸水性表面および凹凸表面から選ばれた少なくとも１つの表面に塗装され、水酸化カルシウムの一次粒子を媒体中に分散させた乳化物状の液状物であるので、塗装の厚さが薄くても、粒子径が大きな従来の漆喰材料と同じ塗面を形成できる。また、塗装面の厚さを薄くできるので、表面の模様、形状をそのまま再現できる。さらに、プラスチックや表面鏡面状に塗装された木材などの非吸水性の鏡面に塗装した場合、濡れたタオルなどで拭き取ることにより容易に除去できる。 The building interior coating composition of the present invention is an emulsion-like liquid material in which primary particles of calcium hydroxide are dispersed in a medium, which is coated on at least one surface selected from a water-absorbing surface and an uneven surface. Therefore, even if the coating thickness is thin, the same coated surface as a conventional plaster material having a large particle diameter can be formed. In addition, since the thickness of the painted surface can be reduced, the surface pattern and shape can be reproduced as they are. Furthermore, when a non-water-absorbing mirror surface such as plastic or wood coated in a mirror-like surface is applied, it can be easily removed by wiping with a wet towel or the like.
本発明の内装面塗装方法は、建築物内装用塗剤を粗塗装する工程と、この粗塗装後の表面を仕上塗装する工程とを備えるので、初めての人や家庭の主婦がまるで壁の拭き掃除をするかのように漆喰壁の施工ができる。 The interior surface coating method of the present invention comprises a step of rough-coating a coating for interior of a building and a step of finish-coating the surface after the rough coating, so that the first person or a housewife in the home can wipe off the walls. You can construct a plastered wall as if you were doing it.
本発明の建築物内装用塗剤は水酸化カルシウムの一次粒子を媒体中に分散させた乳化物状の液状物である。ここで、乳化物状の液状物であるとは、固体の水酸化カルシウム微粒子を媒体に分散することで、低粘性の長期分散安定性を維持した乳白色の水酸化カルシウムスラリーであることをいう。本発明者らは水酸化カルシウムの一次粒子を用いることで、この乳化物状の液状物が得られることを見出した。本発明はこのような知見に基づくものである。 The building interior coating material of the present invention is an emulsion-like liquid material in which primary particles of calcium hydroxide are dispersed in a medium. Here, an emulsion-like liquid means a milky white calcium hydroxide slurry that maintains long-term dispersion stability with low viscosity by dispersing solid calcium hydroxide fine particles in a medium. The inventors have found that this emulsion-like liquid can be obtained by using primary particles of calcium hydroxide. The present invention is based on such knowledge.
水酸化カルシウム（Ｃａ（ＯＨ）2）は、石灰石（ＣａＣＯ3）を焼いて得られる生石灰（ＣａＯ）に水を反応させて製造される白色粉末であり、消石灰とも言われる。本発明に使用できる水酸化カルシウムは、石灰石の原石を土中窯で無煙炭を燃料として数日間焼成した塩焼生石灰を原料として、この生石灰に水を反応させて得られる水酸化カルシウムを好ましく使用できる。 Calcium hydroxide (Ca (OH) 2 ) is a white powder produced by reacting quick lime (CaO) obtained by baking limestone (CaCO 3 ) with water, and is also called slaked lime. As the calcium hydroxide that can be used in the present invention, calcium hydroxide obtained by reacting raw calcined lime with water as a raw material using raw calcined lime obtained by burning raw limestone in an underground kiln with anthracite as fuel for several days can be preferably used.
水酸化カルシウムの一次粒子は、結晶構造が六方晶系の平板またはプリズム状である。本発明で使用できる水酸化カルシウムの平均粒子径は、平板またはプリズム状を全体として球状とみなして、１〜１００μｍであり、好ましくは１〜６０μｍであり、さらに好ましくは１〜５μｍである。平均粒子径が１００μｍを超えると一次粒子の形態をとることが困難になり、一次粒子の集合体である二次粒子となる。この二次粒子は通常球形であり、塗布厚さを薄くすることができない。なお、平均粒子径は光散乱法等で測定できる。 The primary particles of calcium hydroxide have a hexagonal flat or prismatic crystal structure. The average particle diameter of calcium hydroxide that can be used in the present invention is 1 to 100 μm, preferably 1 to 60 μm, more preferably 1 to 5 μm, assuming that the flat plate or prism shape as a whole is spherical. When the average particle diameter exceeds 100 μm, it becomes difficult to take the form of primary particles, and secondary particles that are aggregates of primary particles are obtained. These secondary particles are usually spherical, and the coating thickness cannot be reduced. The average particle diameter can be measured by a light scattering method or the like.
本発明は、上記水酸化カルシウムの一次粒子と共に、漆喰状の塗装ができる範囲内で、酸化チタン、アルミナ、シリカ、炭酸カルシウム等の白色顔料、酸化鉄、着色マイカ等の着色顔料を配合できる。 In the present invention, white pigments such as titanium oxide, alumina, silica, and calcium carbonate, and colored pigments such as iron oxide and colored mica can be blended with the primary particles of calcium hydroxide within a range where a stucco-like coating is possible.
水酸化カルシウムを媒体中に分散させることで、乳化物状の液状物が得られる。分散方法としては、たとえば３日置きに連続して高速ミキシングすることにより水と水酸化カルシウムを乳化状態に分散させる方法を用いることができる。また、媒体としては、水または水性エマルジョンが使用できる。水としては、水道水も使用できるが、好ましくはイオン交換水である。 By dispersing calcium hydroxide in the medium, an emulsion liquid can be obtained. As a dispersion method, for example, a method of dispersing water and calcium hydroxide in an emulsified state by high-speed mixing continuously every three days can be used. As the medium, water or an aqueous emulsion can be used. As water, tap water can be used, but ion-exchanged water is preferable.
水性エマルジョンとしては、樹脂が水に分散している樹脂エマルジョン液が好ましい。樹脂エマルジョン液としては、アクリル酸エステルやメタクリル酸エステルを共重合させた純アクリルエマルジョンあるいはスチレンまたはシリコーンを導入したスチレンアクリルエマルジョンなどのアクリル樹脂系エマルジョン、酢酸ビニル樹脂系エマルジョン、ウレタン樹脂系エマルジョン、酢酸ビニル・ベオバ共重合樹脂系エマルジョン、スチレン−ブタジエン樹脂系エマルジョン等が挙げられる。水または水性エマルジョンは、保護コロイド、イオン系または非イオン系界面活性剤などの界面活性剤、酸化鉄や着色マイカなどの顔料、顔料の湿潤剤、メチルセルロース、ヒドロキシプロピルメチルセルロース、カルボキシメチルセルロースなどのセルロース誘導体などの増粘剤、パーライトや発泡ヒル石などの発泡骨材、砂や炭酸カルシウムなどの増量剤、凍結融解安定剤、消泡剤、防カビ剤等を含んでいてもよい。また、樹脂溶液には、エポキシ樹脂や溶剤系樹脂等を使用してもよい。 As the aqueous emulsion, a resin emulsion liquid in which a resin is dispersed in water is preferable. Examples of the resin emulsion include acrylic resin emulsions such as pure acrylic emulsions copolymerized with acrylic acid esters and methacrylic acid esters or styrene acrylic emulsions with styrene or silicone introduced, vinyl acetate resin emulsions, urethane resin emulsions, acetic acid Examples include vinyl / veova copolymer resin emulsions and styrene-butadiene resin emulsions. Water or aqueous emulsions are protective colloids, surfactants such as ionic or nonionic surfactants, pigments such as iron oxide and colored mica, pigment wetting agents, cellulose derivatives such as methylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose And a thickening agent such as perlite and foamed leech stone, a bulking agent such as sand and calcium carbonate, a freeze-thaw stabilizer, an antifoaming agent, an antifungal agent and the like. Moreover, you may use an epoxy resin, solvent resin, etc. for the resin solution.
建築物内装用塗剤は、水酸化カルシウム１００質量部に対して、媒体を１〜１０００質量部、好ましくは２０〜９００質量部である。媒体が１質量部未満であると乳化物状の液状物状態を生じなくなり、１０００質量部を超えると乳化物状の液状物状態を維持できなくなり、沈殿が生じやすくなる。 The coating material for building interior is 1 to 1000 parts by mass, preferably 20 to 900 parts by mass with respect to 100 parts by mass of calcium hydroxide. When the medium is less than 1 part by mass, an emulsion-like liquid state is not generated, and when it exceeds 1000 parts by mass, the emulsion-like liquid state cannot be maintained and precipitation is likely to occur.
その他の添加剤の配合割合を以下に示す。
界面活性剤や増粘剤などの添加剤は、水酸化カルシウム１００質量部に対して、０．０１〜１００質量部、好ましくは０．０１〜１０質量部添加できる。
顔料は、水酸化カルシウム１００質量部に対して、０．０１〜１０００質量部添加できる。
発泡骨材は、水酸化カルシウム１００質量部に対して、０．０１〜１００質量部添加できる。
増量剤は、水酸化カルシウム１００質量部に対して、０．０１〜１０００質量部添加できる。
The blending ratio of other additives is shown below.
Additives such as surfactants and thickeners can be added in an amount of 0.01 to 100 parts by mass, preferably 0.01 to 10 parts by mass with respect to 100 parts by mass of calcium hydroxide.
The pigment can be added in an amount of 0.01 to 1000 parts by mass with respect to 100 parts by mass of calcium hydroxide.
The foamed aggregate can be added in an amount of 0.01 to 100 parts by mass with respect to 100 parts by mass of calcium hydroxide.
The bulking agent can be added in an amount of 0.01 to 1000 parts by mass with respect to 100 parts by mass of calcium hydroxide.
本発明の建築物内装用塗剤は、吸水性表面、凹凸表面、または吸水性面と共に凹凸を有する表面、これらに模様が描かれた表面を有する建築物の内装に塗装できる。内装面としては表面に凹凸または吸水性を有するビニールクロスなどが挙げられる。ただし、プラスチックや表面鏡面状に塗装された木材などの非吸水性の鏡面を有する建築物の内装には適用が困難である。この理由は、本発明の塗剤が水酸化カルシウムの一次粒子を媒体中に分散させているので、塗装後に乾燥することで塗膜の自由収縮が生じ、鏡面との接着性が低下するためと考えられる。しかし、このことは誤って鏡面に塗装した場合、濡れたタオルなどで容易に拭き取ることができるという利点がある。 The building interior coating composition of the present invention can be applied to the interior of a building having a water-absorbing surface, an uneven surface, or a surface having unevenness along with the water-absorbing surface, and a surface on which a pattern is drawn. Examples of the interior surface include a vinyl cloth having irregularities or water absorption on the surface. However, it is difficult to apply to the interior of a building having a non-water-absorbing mirror surface such as plastic or wood coated with a mirror surface. This is because the coating agent of the present invention disperses the primary particles of calcium hydroxide in the medium, so that the coating shrinks freely by drying after coating, and the adhesion to the mirror surface decreases. Conceivable. However, this has the advantage that if it is accidentally painted on a mirror surface, it can be easily wiped off with a wet towel or the like.
上記建築物内装用塗剤を用いて吸水性表面、凹凸表面等に漆喰状の塗装をする場合、上記ビニールクロスなどの被塗装面に粗塗装する。ここで粗塗装とは、スプレー容器やチューブ容器に入れられた塗剤を直接被塗装面に塗装することをいう。 When a plaster-like coating is applied to a water-absorbing surface, an uneven surface or the like using the building interior coating agent, the surface to be coated such as the vinyl cloth is roughly coated. Here, the rough coating means that a coating agent placed in a spray container or a tube container is directly applied to a surface to be coated.
粗塗装後の表面を仕上塗装する。ここで仕上塗装とは粗塗装後の表面をタオルなどの濡れた布により均一に塗剤を伸ばすことをいう。仕上塗装後の塗布量は１００〜２００ｇ／ｍ2とすることが好ましい。この範囲の塗布量とすることにより、塗装表面の模様、形状をそのまま再現できる。また、被塗装面の傷や黄ばみ、汚れなどが消える。さらに漆喰独特の白さが発現する。従来の２〜５ｋｇ／ｍ2の塗布量に対して、本発明は水酸化カルシウムの一次粒子を使用しているので、１００〜２００ｇ／ｍ2と薄い塗布厚さであっても漆喰の白さを得ることができる。 Finish the surface after rough coating. Here, finish coating means that the surface of the surface after rough coating is uniformly extended with a wet cloth such as a towel. The coating amount after finish coating is preferably 100 to 200 g / m 2 . By setting the coating amount in this range, the pattern and shape of the painted surface can be reproduced as it is. In addition, scratches, yellowing, dirt, etc. on the painted surface disappear. In addition, the unique whiteness of plaster appears. Since the present invention uses primary particles of calcium hydroxide with respect to the conventional coating amount of 2 to 5 kg / m 2 , the whiteness of the plaster even if the coating thickness is as thin as 100 to 200 g / m 2. Can be obtained.
実施例１〜５および比較例１〜３
表１に示す平均粒子径の水酸化カルシウム１００質量部に、水および／またはエマルジョンを用いて、表１に示す配合割合で分散させた。水はイオン交換水を、エマルジョンはアクリル系エマルジョン（樹脂分濃度４０質量％）をそれぞれ用いた。また、増粘剤はメチルセルローズを、分散剤はアクリル系分散剤（東亜合成株式会社製）をそれぞれ用いた。得られた建築物内装用塗剤を密栓して空気中２５℃で１日間放置したときの塗剤の状態を目視で観測した。結果を表１に示す。表中「良好」とは水酸化カルシウムが沈降せず乳化物のように「とろみ」のある液体状を維持している場合であり、「沈殿」とは水酸化カルシウムと媒体とが２層に分離している場合である。
Examples 1-5 and Comparative Examples 1-3
It was made to disperse | distribute to 100 mass parts of calcium hydroxide of the average particle diameter shown in Table 1 with the compounding ratio shown in Table 1 using water and / or an emulsion. The water used was ion exchange water, and the emulsion used was an acrylic emulsion (resin concentration 40% by mass). Further, methyl cellulose was used as the thickener, and acrylic dispersant (manufactured by Toa Gosei Co., Ltd.) was used as the dispersant. The resulting coating for building interior was sealed and visually observed for the state of the coating when left in air at 25 ° C. for 1 day. The results are shown in Table 1. In the table, “good” means that calcium hydroxide does not settle but maintains a liquid state with “thickness” like an emulsion, and “precipitation” means that calcium hydroxide and medium are in two layers. This is the case.
建築物内装の被塗装面として、ビニールクロス（株式会社アサヒペン製 品名「ＳＤ−１」）を準備して、この表面にスプレー容器に入れた各実施例および比較例に示す建築物内装用塗剤をスプレー塗布した。その後、濡れたタオルを用いて均一に伸ばして仕上げた。塗装量は１５０ｇ／ｍ2であった。形成された漆喰状表面を有する内装面について、塗布１日経過後の状態を以下の項目について測定した。（１）クロスへの付着状態、（２）隠ぺい力、（３）鏡面からの除去、（４）凹凸表面の状態。測定および評価方法を以下に示す。また、評価結果を表１に示す。 As a coated surface of a building interior, a vinyl cloth (product name “SD-1” manufactured by Asahi Pen Co., Ltd.) was prepared, and the coating agent for building interior shown in each example and comparative example put in a spray container on this surface. Was spray applied. Then, it was uniformly stretched using a wet towel. The coating amount was 150 g / m 2 . About the interior surface which has the formed plaster-like surface, the state after 1 day of application | coating was measured about the following items. (1) The state of adhesion to the cloth, (2) the hiding power, (3) the removal from the mirror surface, and (4) the state of the uneven surface. The measurement and evaluation methods are shown below. The evaluation results are shown in Table 1.
（１）クロスへの付着状態
漆喰状表面を有するクロス表面状態を目視で測定した。目視測定は３人で行ない全員一致を原則とした。「良好」とは?がれやひび割れのない状態であり、「ひび割れ」とは塗膜表面にひび割れがある状態である。
（２）隠ぺい力
上記目視により測定した。「良好」とはクロス表面の汚れが確認できない状態であり、「不良」とは汚れが確認できる状態である。
（３）鏡面からの除去
ビニールクロスの代わりに窓枠の鏡面に実施例１と同様にして塗布して、実施例１と同様にして評価した。「良好」とは除去可能なことであり、「不除去」とは除去できずに塗膜が残ることである。
（４）凹凸表面の状態
漆喰状表面を有するクロス表面の凹凸を上記目視により測定した。「良好」とは凹凸模様が確認できることであり、「凹凸消滅」とはは凹凸模様が確認できないことである。
(1) Adhesion state to cloth The cloth surface state which has a stucco-like surface was measured visually. The visual measurement was performed by three people, and all of them agreed in principle. “Good” means that there is no cracking or cracking, and “cracking” means that there is a crack on the surface of the coating film.
(2) Hiding power Measured by the above visual observation. “Good” is a state where the stain on the cloth surface cannot be confirmed, and “Bad” is a state where the stain can be confirmed.
(3) Removal from mirror surface It applied like the example 1 to the mirror surface of the window frame instead of the vinyl cloth, and evaluated similarly to the example 1. “Good” means that the film can be removed, and “non-removed” means that the film remains without being removed.
(4) State of uneven surface The unevenness of the cloth surface having a stucco surface was measured by the above visual observation. “Good” means that a concavo-convex pattern can be confirmed, and “unevenness” means that a concavo-convex pattern cannot be confirmed.
本発明の建築物内装用塗剤は、安定した乳化物状の液状物となるので、可使時間を長くすることができる。その結果、多くの建築物の内装用漆喰材料に利用できる。
また、この塗剤を用いた塗装方法は、初めての人や家庭の主婦がまるで壁の拭き掃除をするかのように漆喰壁の施工ができるので、家庭用塗料の分野で利用できる。
Since the building interior coating composition of the present invention is a stable emulsion-like liquid, the pot life can be extended. As a result, it can be used as a plaster material for interiors of many buildings.
In addition, the painting method using this coating agent can be used in the field of home paint because the first person or a housewife can construct a plaster wall as if wiping and cleaning the wall.
Claims (4)
前記内装面が非吸水性の鏡面を除いた吸水性表面および凹凸表面から選ばれた少なくとも１つの表面であり、
前記塗剤が水酸化カルシウムの一次粒子を媒体中に分散させた乳化物状の液状物であることを特徴とする建築物内装用塗剤。 A coating for building interiors for painting interior surfaces of buildings,
The interior surface is at least one surface selected from a water-absorbing surface and an uneven surface excluding a non-water-absorbing mirror surface;
A building interior coating material, wherein the coating material is an emulsified liquid material in which primary particles of calcium hydroxide are dispersed in a medium.
粗塗装後の表面を仕上塗装する工程を備えることを特徴とする内装面塗装方法。 The step of rough-coating the building interior coating composition according to claim 1 on at least one surface selected from a water-absorbing surface and an uneven surface excluding a non-water-absorbing mirror surface;
An interior surface coating method comprising a step of finish-coating the surface after rough coating.
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| JP2022136906A (en) * | 2021-03-08 | 2022-09-21 | フィーネ株式会社 | Method for producing calcium hydroxide powder for washing fruits and vegetables and method for washing fruits and vegetables using the calcium hydroxide powder |
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