JPS58142946A - Pigment for water paint - Google Patents

Abstract

PURPOSE:To provide the titled pigment containing tin powder as an effective component, stable even in an aqueous medium, forming a coating film having excellent metallic luster and clear color, and capable of applying a silver or gold metallic finish to an arbitrary substrate. CONSTITUTION:The objective pigment is prepared by mixing (A) 100pts.wt. ofa vehicle of a water paint (e.g. acrylic acid ester-styrene copolymer emulsion) (solid content: 50%) with (B) 5-100pts.wt. of tin powder having a fineness of preferably 60-350 mesh (e.g. flaky tin powder manufactured by a stamp mill, etc.).

Description

【発明の詳細な説明】 本発明は錫粉末を有効成分とする水性塗料用顔料に関し
、詳しくは水性媒体中においても安定に存在し、−れた
金属光沢性を発揮する塗膜を提供する新規な水性室料用
顔料に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pigment for water-based paints containing tin powder as an active ingredient, and more specifically, a novel pigment that exists stably even in an aqueous medium and provides a paint film that exhibits high metallic luster. This invention relates to pigments for water-based room materials.

近年、潴ｌ１Ｆｌｌ系の塗料は人体に有害で取扱い上火
災の危険性もあり、公害防止の見地カーら水系へと移行
することが顧まれているところである。しかし、現在で
も尚メタリック塗料は溶剤系のＩＪＴ料にリーフィング
性のないアルミニウム粉、ブロンズ粉等の金属粉を混入
して使用されている。然るにこれら金属粉をそのまま水
浴性＆脂や合成樹脂エマルジョン塗料等の水系一群中に
用いると安定な分散が得締＜、又、仮りに特殊な分散剤
を用いて長釘に分散させることができたとしてもこれら
金属粉は水と反応を起し易く徐々に変性し、安定に存在
することは困静である。更に、該金風粉の表面を水に安
定な化合−で表面改質したものを使用して上記欠点を改
良した堤体であっても本質的に該金属表面への水の浸入
を完全には阻止すること有する水系塗料を短期間のうち
にｗ合し、−験を形成させた後であっても、一般に水系
の結合材を使用した時には水を透過させ易い等の性質が
あるため、たとえ微量であっても塗膜中へ浸入する水が
これら金属粉と接触して徐々に化学反応を起こし比暖的
短期間のうちに変色、金属光沢を喪失し且つこれが塗、
膜を劣化させる原因となっていた。In recent years, paints based on water-based paints are harmful to the human body and pose a risk of fire when handled, and consideration has been given to switching from car paints to water-based paints in order to prevent pollution. However, even now, metallic paints are still used by mixing metal powders such as aluminum powder and bronze powder, which do not have leafing properties, into a solvent-based IJT material. However, if these metal powders are used as they are in water-based paints such as water-bathable and oily or synthetic resin emulsion paints, stable dispersion can be achieved. Even so, these metal powders tend to react with water and are gradually denatured, making it difficult for them to exist stably. Furthermore, even if the embankment body uses the surface of the metal powder modified with a water-stable compound to improve the above-mentioned drawbacks, it is essentially impossible to completely prevent water from penetrating into the metal surface. In general, when water-based binders are used, they tend to allow water to pass through, even after the water-based paints have been bonded together in a short period of time to form a coating. Water that enters the paint film, even in a small amount, comes into contact with these metal powders and gradually causes a chemical reaction, resulting in discoloration and loss of metallic luster within a relatively short period of time, and this causes the paint to deteriorate.
This caused the film to deteriorate.

かかる現状に鑑み、本発明者らは水系室料を用いていか
にして水性媒体中に安定で金属光沢のかれた塗膜を得る
ことができる−を鋭意研究した結果側る水系塗料の金属
粉顔料として従来より使用・れなかった錫粉末を用いる
ことにより、上記の目的を達成できるとの知見を侵で本
発明を完成させるに至った。In view of the current situation, the present inventors conducted extensive research on how to obtain a coating film with a stable metallic luster in an aqueous medium using a water-based paint, and as a result, the metal powder of the water-based paint was developed. The present invention was completed based on the knowledge that the above object can be achieved by using tin powder, which has not been used in the past, as a pigment.

本発明に用いられる錫粉末とは、スタンプミルによって
リン片状に加工されたもの、あるいはクラッシャーによ
りに械的に微粉状に粉砕されたも　□の、又はｖａ餞金
金属高速流体によって―脂化されたもの等を使用するこ
とができる。係る錫粉末の粒子径は必要とする塗膜の光
沢に応じ適宜選択できるが、一般に１０メツシユ〜３Ｓ
Ｏメツシユ暢 の範囲のものが望ましい。一般に一粉末が乙Ｏメツシュ
より大きな粒子径であると、塗料中で好粉末が沈降した
り、塗装した場合にもむらになり易く、又３ｊＯメツシ
ユより小さい粒子径の場合は金属光沢が低下する傾向に
なるため好ましくない。The tin powder used in the present invention is one that has been processed into flakes using a stamp mill, or one that has been mechanically crushed into fine powder using a crusher. You can use the The particle size of the tin powder can be appropriately selected depending on the required gloss of the coating film, but is generally 10 mesh to 3S.
It is desirable to have a range of 0 meshes. In general, if the particle size of the powder is larger than the 3JO mesh, the powder tends to settle in the paint or become uneven when applied, and if the particle size is smaller than the 3JO mesh, the metallic luster will decrease. This is not desirable because it becomes a tendency.

尚、目的とする金属光沢を失わない程度であれば錫粉末
に通常の水系塗料に用いる顔料と併用しても一同に差し
支えない。例えば二酸化チタン、酸化鉄、酸化ニッケル
、酸化クロム、４カーボンブラツク等の無＆ｌ！Ｉ顯料
や、フタロシアニンブルー、ハンサイエロー、カーミン
レッド等の有機系顔料が例として挙げられ、錫粉末自体
はシルバーメタリックであるるが、適当な下地を選択し
たり、他の顔料を併用するなどによりゴールドメタリッ
ク仕上げ等を得ることができる。次に、本発明に用いら
れる水系塗料のビヒクルには、マレイン化曲、ポリエス
テル樹脂、アクリル樹脂、メラミン梅脂、変性樹脂、ア
ルキド系、アクリル系、ス・Ｏンブタジエン系、エポキ
シ系、ポリ酢酸ビニル系等の合敬Ｎ脂エマルジミン、並
びにこれらの混合物等があるが、輯粉末の金属光沢性お
よび鮮明性を助長し、塗膜自体の耐久性を高めるなどの
目的の為塩化ビニル、アクリル酸エステル、メタアクリ
ル酸エステル、スチレン、エチレン、酢酸ビニル、無水
マレイン酸、バーサチック酸ビニル、塩化ビニリデン等
の単策体を単独もしくは二種以上使用して乳化重合によ
り得られる光沢性ホモポリマーエマルジョン又はコポリ
マーエマルジョンを主体とするものが好ましい。該水系
ビヒクルと錫粉末との系には套装に応じて界面活性剤、
体膣コロイド、可曙剤、充てん材、増粘剤等の添加物を
配合して用いることができるが、これらは套装最小限度
内の使用鍬とし、本発明の必須盲動成分である錦粉末は
、水系塗料のビヒクル１００友量部（固杉分ｊＯ％帛に
対して通常Ｓ〜１００１ｊｔ散部が適当である。Incidentally, tin powder may be used in combination with pigments used in ordinary water-based paints as long as the desired metallic luster is not lost. For example, no titanium dioxide, iron oxide, nickel oxide, chromium oxide, 4 carbon black, etc.! Examples include I paint, organic pigments such as phthalocyanine blue, Hansa yellow, and carmine red.Tin powder itself is silver metallic, but by selecting an appropriate base or using other pigments in combination, Gold metallic finishes etc. can be obtained. Next, the water-based paint vehicle used in the present invention includes maleated resin, polyester resin, acrylic resin, melamine plum oil, modified resin, alkyd type, acrylic type, suction butadiene type, epoxy type, and polyacetic acid. There are vinyl-based N-fatty emulsifiers and mixtures thereof, but vinyl chloride and acrylic acid are used for the purpose of promoting the metallic luster and clarity of the powder and increasing the durability of the coating film itself. A glossy homopolymer emulsion or copolymer obtained by emulsion polymerization using one or more monopolymers such as ester, methacrylic acid ester, styrene, ethylene, vinyl acetate, maleic anhydride, vinyl versatate, vinylidene chloride, etc. It is preferable to use emulsion as the main ingredient. The system of the aqueous vehicle and tin powder may contain a surfactant or
Additives such as body-vaginal colloid, anti-aging agent, filler, thickener, etc. can be mixed and used, but these should be used within the minimum amount of packaging. , S to 1001 parts per 100 parts of the vehicle for water-based paints (usually S to 1001 parts per 100 parts per 100 parts of solid cedar) are suitable.

以上述べたように、本発明の鵡粉末を有効成分とする水
性塗料用顔料は水性の媒体中で安定であり、しかも塗膜
を形成した後には優れた金属光沢性及び鮮明な色軸を提
供するものである。以下この発明の実施例及び比較例を
示す。As mentioned above, the pigment for water-based paints containing the parrot powder of the present invention as an active ingredient is stable in an aqueous medium, and provides excellent metallic luster and a clear color axis after forming a coating film. It is something to do. Examples and comparative examples of the present invention will be shown below.

実施ｏ１１１ アクリル酸エステル−スチレン共　２０００ｇ・・末＜
１００〜２００メツシユ＋ｌｌ００ｇ上記成分を均一に
撹拌導きして塗料を砕整し、該噴料を４０℃の弊囲気下
に３ブ月おいたところ塗料に何ら変化も認められなかっ
た。該塗料をモルタル板上に塗布し、−週間乾燥後ＪＩ
Ｓ　Ｋ　５４００６．１５に基づき５００時間の促進耐
候試験を行ったところ塗膜表面の金属光沢が低下するよ
うなことはなく、ふくれ、はがれ、変色等の変化も五名
めうれなカ）つた。Implementation o111 Acrylic acid ester-styrene 2000g...end<
100 to 200 mesh + 100 g of the above ingredients were uniformly stirred and introduced to form a paint, and the spray was left in an ambient atmosphere at 40°C for 3 months, and no change was observed in the paint. The paint was applied on a mortar board, and after drying for - weeks, JI
When a 500-hour accelerated weathering test was conducted in accordance with S K 54006.15, there was no decrease in the metallic luster on the surface of the coating, and no changes such as blistering, peeling, or discoloration were detected by five people.

実施例２ エチレン酢酸ビニル共重合　　、２０００ｇ体エマルヅ
ミン 錫粉末（１００−，２００メ・ソシュ）１００ｇ ベンガラ（Ｆｅ２０ａ）　　　　　　　　　’ｌ　ｏｇ
上記成分を均一に撹拌混合して塗料を調整し、該塗料を
ｑＯ℃の雰囲気下に３ブ月おし）たところ、小板上に塗
布し、次に茶かつ色のエナメＪし仕上４ブを行った下地
に塗布したところゴーＪレドメタ１ノ・ツク調の１！！
膜が得られた。該塗膜を実施例）１と同様の方法で試験
を行った。試験後の塗膜−金Ｎ光沢が低下するようなこ
とはなく、ふく＄１．１．を力５れ、変色等の変化も認
められなかった。Example 2 Ethylene-vinyl acetate copolymerization, 2000 g Emuldumin tin powder (100-, 200 Me. Soche) 100 g Red iron (Fe20a) 'log
The above ingredients were stirred and mixed uniformly to prepare a paint, and the paint was left in an atmosphere of qO℃ for 3 months), then applied on a small plate, and then brown and colored enamel was applied to finish 4. When I applied it to the base that had been rubbed, it turned out to be Go J Red Meta 1 No Tsuku-like 1! !
A membrane was obtained. The coating film was tested in the same manner as in Example 1. Coating film after the test - Gold N There was no decrease in gloss, and the film was $1.1. No change, such as discoloration, was observed.

実施例３ アクリル酸エステル樹脂 エマルシ６ヨン　　　　　　　　２０００ｇ錫粉末　（
１００−２００１１００ｇ メツシュ） ヒドロキシエチルセルロース　　　５０ｇジブチルフタ
レート　　　　　　　４（７ｇ水　　　　　　　　　　
　　　　　　　　　　　２００ｇ上記成分を均一に撹拌
混合してｍ料を謔整し、該塗料を１１０℃の俳囲気下に
３ケ月おいたところ、タル板に塗布し、次で灰色のエナ
メル仕上げを行った下地に塗布したところシルバーメタ
リック調のＥ！Ｂ膜が得られた。該ｍ膜を実施例１と同
様の方法で試ｔ・建を行った。試験後のｌ！ｉ！！膜は
金属光沢が低下するようなことはなく、ふくれ、はがれ
、変色等の変化も認められなかった。Example 3 Acrylic acid ester resin emulsion 2000g tin powder (
100-2001100g mesh) Hydroxyethyl cellulose 50g dibutyl phthalate 4 (7g water
200g of the above ingredients were stirred and mixed uniformly to prepare the paint, and the paint was left in a warm atmosphere at 110°C for 3 months, and then applied to a tarp board, and then applied to a gray enamel-finished base. When applied, it has a silver metallic tone E! A B film was obtained. The M film was tested in the same manner as in Example 1. l after the exam! i! ! There was no decrease in the metallic luster of the film, and no changes such as blistering, peeling, or discoloration were observed.

比軟例１ 実、ｌ＋＋４例１において錫粉末の代わりにアルミニウ
ム粉末（平均粒子径１００メツシユ）を用いて塗料をｍ
ｓし、これを４０℃の聾囲気下に３ケ月おいたところ、
アルミニウム粉末が水と反応し管器を破壊して外部へ流
出していた。ｈ合直後の塗料をモルタル板上に塗布して
得た塗膜を使用し％　ｈＱＱ１０同様の試験を１行った
ところ、塗膜は完全に金属光沢を失い変色やふくれを生
じていた。Ratio Example 1 In fact, l++4 In Example 1, aluminum powder (average particle size 100 mesh) was used instead of tin powder to make the paint.
When this was placed in a deaf atmosphere at 40℃ for 3 months,
Aluminum powder reacted with water, broke the pipes, and leaked outside. When a test similar to % hQQ10 was conducted using a coating film obtained by applying the paint immediately after curing on a mortar board, the coating film completely lost its metallic luster and was discolored and blistered.

比較例２ 実施例１において鑓粉末の代わりにブロンズ粉末（平均
粒子径１００メツシユ）を用いて塗料をａｍし、これを
ｔＩ０℃の酔囲気下に３ケ月おいたところ、ブロンズ粉
末が水と反応し調整直後の麺・料と比較して変色コ珈相
を異にしていた。Ｍ合直後の塗料をモルタル板上に塗布
して得た塗膜を使用し実施例１と同様の試験を行ったと
ころ＠膜は完全に金属光沢を失い変色や無数のふくれを
生じていた。Comparative Example 2 In Example 1, bronze powder (average particle size: 100 mesh) was used in place of the powder, and the paint was amped. When this was left in an inebriated atmosphere at tI0°C for 3 months, the bronze powder reacted with water. Compared to the noodles and ingredients immediately after adjustment, the discoloration and texture were different. When the same test as in Example 1 was conducted using a coating film obtained by applying the paint immediately after M-coating onto a mortar board, the film completely lost its metallic luster and had discoloration and numerous blisters.

（以　上） 特許出願人　四国化研工業株式会社(that's all) Patent applicant Shikoku Kaken Kogyo Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] １、暢粉末を有効成分とする水性塗料用顔料。1. Pigment for water-based paints containing powdered powder as an active ingredient.