JPH07331113A - Pigment composition for traffic paint and preparation thereof - Google Patents
Pigment composition for traffic paint and preparation thereofInfo
- Publication number
- JPH07331113A JPH07331113A JP6145804A JP14580494A JPH07331113A JP H07331113 A JPH07331113 A JP H07331113A JP 6145804 A JP6145804 A JP 6145804A JP 14580494 A JP14580494 A JP 14580494A JP H07331113 A JPH07331113 A JP H07331113A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- inorganic
- pigments
- pigment composition
- 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.)
- Granted
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、新規なトラフィックペ
イント用顔料組成物及びその製造方法に関し、さらに詳
細には、無機質粒子の表面に有機顔料を付着させた隠蔽
性、耐候性、耐熱性及び再帰反射性に優れたトラフィッ
クペイント用顔料組成物、及び無機質粒子と有機顔料と
を機械的に混合摩砕する上記顔料組成物の製造方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel pigment composition for traffic paints and a method for producing the same, and more specifically, to a hiding property, a weather resistance, a heat resistance and a heat resistance which are obtained by adhering an organic pigment on the surface of inorganic particles. The present invention relates to a pigment composition for traffic paint having excellent retroreflectivity, and a method for producing the pigment composition by mechanically mixing and grinding inorganic particles and an organic pigment.
【0002】[0002]
【従来の技術】道路の区画線や標示に使用される塗料、
いわゆるトラフィックペイントには、一般に、ペイント
式の常温用(1種)と加熱用(2種)及び溶融式(3
種)が使用されている。常温用は常温で、加熱用は、施
工時50〜80℃に塗料を加温して塗装する。また、溶
融式は、熱可塑性樹脂を展色剤とした粉末状の塗料で、
180〜220℃の高温で溶融させ、専用の塗装機を用
いて施工される。2. Description of the Related Art Paint used for marking lines and markings on roads,
So-called traffic paints are generally paint type for normal temperature (1 type), heating type (2 types) and melting type (3 types).
Seeds) are used. For normal temperature, the temperature is normal temperature, and for heating, the coating is heated to 50 to 80 ° C. at the time of construction. In addition, the melting type is a powdery paint that uses a thermoplastic resin as a color-developing agent,
It is melted at a high temperature of 180 to 220 ° C. and is constructed using a dedicated coating machine.
【0003】従来から、これらのトラフィックペイント
の黄色系の着色成分として、ペイント式では黄鉛、酸化
鉄エロー、チタンエロー、有機顔料等が使用されるが、
主に黄鉛が用いられており、また、溶融式では耐熱性改
良黄鉛が用いられている。Conventionally, as the yellow coloring components of these traffic paints, yellow lead, iron oxide yellow, titanium yellow, organic pigments, etc. have been used in the paint type.
Yellow lead is mainly used, and heat-resistant improved lead is used in the melting type.
【0004】しかしながら、近年の地球環境汚染対策上
等の観点から、重金属の公害規制は強化されてきてお
り、また、降雪地帯における路面表示材の摩耗による粉
塵公害対策上等の理由から、鉛及びクロムを主成分とす
る黄鉛の使用はかなり困難な状況にあり、黄鉛に代わる
無公害の黄色系の顔料あるいは着色剤の早期開発が要望
されている。However, in recent years, pollution control of heavy metals has been strengthened from the viewpoint of countermeasures against global environmental pollution, and lead and lead pollution due to abrasion of road surface display materials in snowfall areas. The use of yellow lead containing chromium as a main component is quite difficult, and there is a demand for early development of a pollution-free yellow pigment or colorant that replaces yellow lead.
【0005】溶融式塗料における耐熱性改良黄鉛に代わ
る無公害の黄色顔料として、特公昭49−118725
号公報や特公昭50−74634号公報に記載されてい
る4,4′−ビス〔アセトアセト(2″,5″−ジメト
キシ−4″−クロル)アニリド−2−アゾ〕−3,3′
−ジクロルジフェニル(ジスアゾ顔料)またはこの熱処
理化物を使用する方法が知られている。他の方法として
は、特公平4−132770号公報に無機顔料の存在下
に有機顔料を析出させ、無機顔料表面に有機顔料を付着
させる方法が記載されている。As a non-polluting yellow pigment that replaces the heat-resistant yellow lead in the melt type paint, Japanese Patent Publication No. 49-118725.
4,4'-bis [acetoacet (2 ", 5" -dimethoxy-4 "-chloro) anilide-2-azo] -3,3 'described in Japanese Patent Publication No. 50-74634 and Japanese Patent Publication No. 50-74634.
-Methods using dichlorodiphenyl (disazo pigment) or heat treated products thereof are known. As another method, Japanese Patent Publication No. 4-132770 describes a method of depositing an organic pigment in the presence of an inorganic pigment and depositing the organic pigment on the surface of the inorganic pigment.
【0006】[0006]
【発明が解決しようとする課題】上記方法中、ジスアゾ
顔料を使用する方法は、施工時の加熱温度が200℃以
上で、滞留時間が比較的長い場合には、部分的に熱分解
して3,3′−ジクロルベンジジンを含む微量の芳香族
アミンを発生することが明らかにされている。3,3′
−ジクロルベンジジンは労働安全衛生法の特定化学物質
障害予防規則の第一類物質に指定された物質であるこ
と、加熱溶融式で使用される180〜220℃の温度で
は、現在使用されている耐熱改良黄鉛に比較して色相の
変化が大きいこと等の理由で、上記ジスアゾ顔料は、加
熱溶融式トラフィックペイント用の顔料としては使用で
きないことが分かった。Among the above methods, the method using a disazo pigment is such that when the heating temperature at the time of application is 200 ° C. or higher and the residence time is relatively long, it is partially pyrolyzed. It has been shown to generate trace amounts of aromatic amines, including 3,3'-dichlorobenzidine. 3,3 '
-Dichlorobenzidine is a substance designated as a first-class substance under the Industrial Safety and Health Act's Regulations for the Prevention of Specified Chemical Substances, and is currently used at temperatures of 180-220 ° C used in the heating and melting formula. It has been found that the disazo pigment cannot be used as a pigment for a heat-melting type traffic paint because of a large change in hue as compared with heat-resistant modified yellow lead.
【0007】また、無機顔料の表面に有機顔料を析出さ
せる方法は、無機顔料の存在下に有機顔料を合成し、析
出させて、無機顔料の表面に有機顔料を付着させる方法
と、有機溶剤に有機顔料を溶解し、これに核材とすべき
無機顔料を分散させた後、この分散溶液に有機顔料の貧
溶剤を添加して有機顔料を析出させ、無機顔料の表面に
有機顔料を付着させる方法とがある。The method of depositing an organic pigment on the surface of an inorganic pigment is as follows: a method of synthesizing an organic pigment in the presence of the inorganic pigment, depositing the organic pigment, and depositing the organic pigment on the surface of the inorganic pigment; After dissolving the organic pigment and dispersing the inorganic pigment to be the core material in this, the poor solvent of the organic pigment is added to this dispersion solution to precipitate the organic pigment, and the organic pigment is attached to the surface of the inorganic pigment. There is a method.
【0008】両方法とも、無機顔料を有機溶剤中に分散
させる工程を必要とするが、均一な安定した分散スラー
リを得ることは容易なことではなく、さらに有機顔料の
無機顔料への付着にはある程度の選択性があり、無機顔
料に付着しない遊離の有機顔料が多く存在する等、工程
管理上及び経済的にも不利な点が多い。Both methods require a step of dispersing an inorganic pigment in an organic solvent, but it is not easy to obtain a uniform and stable slurry slurry, and further, the adhesion of the organic pigment to the inorganic pigment is not easy. It has a certain degree of selectivity, and there are many free organic pigments that do not adhere to the inorganic pigments, and there are many disadvantages in terms of process control and economically.
【0009】従って、本発明の目的は、上記従来技術の
問題点を解決し、製造が容易で、黄鉛に代わる隠蔽性、
耐候性、耐熱性及び再帰反射性に優れる無公害のトラフ
ィックペイント用顔料組成物及びその製造方法の提供に
ある。本発明者等は、この目的を達成すべく鋭意研究を
重ねた結果、有機顔料の存在下に無機質粒子を機械的に
混合摩砕することによって、有機顔料を無機質粒子の表
面に付着させた顔料組成物を用いることにより目的が達
せられることを見いだした。Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, to be easily manufactured, and to be concealable in place of yellow lead.
It is intended to provide a pollution-free pigment composition for traffic paint having excellent weather resistance, heat resistance and retroreflective property, and a method for producing the same. The present inventors have conducted extensive studies to achieve this object, and as a result of mechanically mixing and grinding the inorganic particles in the presence of the organic pigment, a pigment having the organic pigment adhered to the surface of the inorganic particle is obtained. It has been found that the purpose can be achieved by using the composition.
【0010】[0010]
【課題を解決するための手段】本発明によれば、有機顔
料と、屈折率が2.2以上の無機顔料を5重量%以上含
む無機質粒子とからなり、上記有機顔料が上記無機質粒
子表面に付着したことを特徴とするトラフィックペイン
ト用顔料組成物が提供される。また、本発明によれば、
有機顔料と上記無機質粒子とを機械的に固体状態で混合
摩砕することを特徴とするトラフィックペイント用顔料
組成物の製造方法が提供される。According to the present invention, an organic pigment and inorganic particles containing 5% by weight or more of an inorganic pigment having a refractive index of 2.2 or more, the organic pigment being present on the surface of the inorganic particle. Provided is a pigment composition for traffic paint, which is characterized by being adhered. Further, according to the present invention,
Provided is a method for producing a pigment composition for traffic paint, which comprises mechanically mixing and milling an organic pigment and the inorganic particles in a solid state.
【0011】[0011]
【作用】有機顔料の存在下に無機質粒子を機械的に混合
摩砕することによって、有機顔料を無機質粒子の表面に
付着させることによって、製造が容易で、黄鉛に代わる
隠蔽性、耐候性、耐熱性及び再帰反射性に優れる無公害
のトラフィックペイント用顔料組成物が提供される。The inorganic pigment particles are mechanically mixed and ground in the presence of the organic pigment to adhere the organic pigment to the surface of the inorganic particles, thereby facilitating the production and concealing property, weather resistance, and alternative to yellow lead. Provided is a pollution-free pigment composition for traffic paint, which is excellent in heat resistance and retroreflectivity.
【0012】[0012]
【好ましい実施態様】次に好ましい実施態様を挙げて本
発明を更に詳細に説明する。本発明で使用する無機質粒
子は、屈折率が2.2以上の無機顔料を5重量%以上含
んでいることが必要であり、その他の無機質粒子は特に
限定されない。屈折率が2.2以上の顔料としては、ア
ナターゼ型二酸化チタン顔料、ルチル型二酸化チタン顔
料、及びチタンエロー顔料等が挙げられ、これらの少な
くとも1種が用いられる。BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments. The inorganic particles used in the present invention need to contain 5% by weight or more of an inorganic pigment having a refractive index of 2.2 or more, and the other inorganic particles are not particularly limited. Examples of the pigment having a refractive index of 2.2 or more include anatase type titanium dioxide pigment, rutile type titanium dioxide pigment, and titanium yellow pigment, and at least one of them is used.
【0013】無機顔料の含有量が5重量%未満では、黄
鉛に匹敵する隠蔽性や再帰反射性の発現が十分でない。
好ましくは10〜40重量%である。40重量%を超え
ると塗膜の白化の傾向がみられ、有機顔料も増量の傾向
にあり経済的にも好ましくない。上記無機顔料以外の無
機質粒子としては、酸化鉄エロー顔料、炭酸カルシウ
ム、硫酸バリウム、雲母等が挙げられ、これらは1種ま
たは2種以上で用いられる。When the content of the inorganic pigment is less than 5% by weight, the concealing property and retroreflective property comparable to those of yellow lead are not sufficiently exhibited.
It is preferably 10 to 40% by weight. If it exceeds 40% by weight, the coating film tends to be whitened, and the amount of the organic pigment tends to increase, which is not economically preferable. Examples of the inorganic particles other than the above inorganic pigments include iron oxide yellow pigment, calcium carbonate, barium sulfate, and mica, and these are used alone or in combination of two or more.
【0014】本発明で使用する有機顔料は、本発明の顔
料組成物をペイント式のトラフィックペイント用に用い
るか、溶融式トラフィックペイント用に用いるかによっ
て適宜選択することができる。耐熱性が要求されないペ
イント式の常温用及び加熱用には、モノアゾ系顔料、ジ
スアゾ系顔料あるいは縮合アゾ系顔料等が通常用いられ
る。耐熱性が要求される溶融式の場合には、耐熱性が良
好な顔料であるイソインドリノン系顔料、ペリノン系顔
料、ペリレン系顔料、キナクリドン系顔料、ジケトピロ
ロピロール系顔料あるいは縮合アゾ系顔料等が通常用い
られる。The organic pigment used in the present invention can be appropriately selected depending on whether the pigment composition of the present invention is used for a paint type traffic paint or a melt type traffic paint. For paint-type normal temperature and heating purposes that do not require heat resistance, monoazo pigments, disazo pigments, condensed azo pigments and the like are usually used. In the case of the melting type that requires heat resistance, a pigment having good heat resistance such as isoindolinone pigment, perinone pigment, perylene pigment, quinacridone pigment, diketopyrrolopyrrole pigment or condensed azo pigment. Etc. are usually used.
【0015】本発明の顔料組成物は、上記の無機質粒子
と有機顔料とを固体状態で機械的に混合摩砕することに
よって製造される。無機質粒子と有機顔料の使用割合
は、特に制限されないが、無機質粒子100重量部当た
り有機顔料は50〜250重量部程度が一般的である。The pigment composition of the present invention is produced by mechanically mixing and grinding the above-mentioned inorganic particles and organic pigment in a solid state. The use ratio of the inorganic particles and the organic pigment is not particularly limited, but the organic pigment is generally about 50 to 250 parts by weight per 100 parts by weight of the inorganic particles.
【0016】混合に際しては、混合室(容器)が固定さ
れ、ローラーもしくは混合翼の高速回転による圧縮及び
剪断作用によって混合する混合機を使用する必要があ
る。このような混合機としては、Muller型混合
機、Pugmill型混合機、粒子点綴型混合機あるい
は流動型混合機等が用いられる。具体的には、ハイスピ
ードミキサー(三井鉱山社製)、スーパミキサー(カワ
タ社製)、ターボスフェアミキサー(モーリッツ社製)
等が挙げられる。ボールミルのような混合室が回転する
混合機を用いても圧縮剪断作用が生じないので、このよ
うな混合機を用いても本発明の目的は達成されない。Upon mixing, it is necessary to use a mixer in which the mixing chamber (container) is fixed and mixing is performed by compression and shearing action of rollers or mixing blades rotating at high speed. As such a mixer, a Muller type mixer, a Pugmill type mixer, a particle stapling type mixer, a flow type mixer or the like is used. Specifically, high speed mixer (Mitsui Mining Co., Ltd.), super mixer (Kawata Co., Ltd.), turbosphere mixer (Moritz Co., Ltd.)
Etc. Even if a mixer such as a ball mill in which the mixing chamber is rotated does not generate a compressive shearing action, the object of the present invention is not achieved even if such a mixer is used.
【0017】無機質粒子と有機顔料との混合は、これら
両者を混合機の混合室に仕込み、25〜80℃の温度
で、20〜60分間混合する。混合翼の回転数は、通常
300〜1000rpmである。混合は、通常、目的と
する色相が得られた時点で終了する。混合終了後、有機
顔料が無機質粒子表面に付着した粒子状の顔料組成物が
得られる。得られる顔料組成物は、トラフィックペイン
ト用に使用する場合、他の成分との混合の容易さの点か
ら、粒子径は0.1〜500μm程度であることが望ま
しい。そのためには、顔料組成物を製造するに際し、粒
子径が0.1〜2μm程度の無機質粒子を使用すること
が好ましい。To mix the inorganic particles and the organic pigment, both of them are placed in a mixing chamber of a mixer and mixed at a temperature of 25 to 80 ° C. for 20 to 60 minutes. The rotation speed of the mixing blade is usually 300 to 1000 rpm. Mixing usually ends when the desired hue is obtained. After the mixing is completed, a particulate pigment composition in which the organic pigment is attached to the surface of the inorganic particles is obtained. When the obtained pigment composition is used for traffic paint, it is desirable that the particle diameter is about 0.1 to 500 μm from the viewpoint of easy mixing with other components. For that purpose, it is preferable to use inorganic particles having a particle diameter of about 0.1 to 2 μm when producing the pigment composition.
【0018】混合時に有機顔料の無機質粒子表面への付
着を促進するために、必要ならば、シランカップリング
剤、チタン系カップリング剤あるいはジルコアルミネー
トカップリング剤等の公知のカップリング剤を共存させ
ることができる。カップリング剤の使用量は、有機顔料
と無機質粒子の合計量の5重量%以下である。If necessary, a known coupling agent such as a silane coupling agent, a titanium coupling agent or a zircoaluminate coupling agent is coexistent in order to promote the adhesion of the organic pigment to the surface of the inorganic particles during mixing. Can be made. The amount of the coupling agent used is 5% by weight or less based on the total amount of the organic pigment and the inorganic particles.
【0019】[0019]
【実施例】以下に実施例及び比較例を挙げて本発明をさ
らに具体的に説明する。実施例等で部または%とあるの
は、特に断りのない限り重量基準である。 実施例1 以下の配合処方に従って原材料を10リットルのハイス
ピードミキサー(三井鉱山社製)を用いて混合して顔料
組成物を製造した。回転数1000rpmで、室温で3
0分間攪拌混合して得られた顔料組成物を取り出した。
顔料組成物の色相は使用した各顔料のいずれの色相でも
ない色相鮮明なオレンジであった。EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples below. In Examples and the like, “part” or “%” is based on weight unless otherwise specified. Example 1 A pigment composition was manufactured by mixing the raw materials according to the following formulation and using a 10-liter high speed mixer (manufactured by Mitsui Mining Co., Ltd.). Rotation speed 1000 rpm, room temperature 3
The pigment composition obtained by stirring and mixing for 0 minutes was taken out.
The hue of the pigment composition was a vivid orange, which was not any of the hues of the pigments used.
【0020】 縮合アゾ系顔料(C.I.Pigment Yellow 95) 800部 モノアゾ系顔料 (C.I.Pigment Orange 36) 50部 酸化鉄エロー 50部 二酸化チタン 600部 炭酸カルシウム 200部 硫酸バリウム 280部 シランカップリング剤 20部Condensed azo pigment (C.I.Pigment Yellow 95) 800 parts Monoazo pigment (C.I.Pigment Orange 36) 50 parts Iron oxide yellow 50 parts Titanium dioxide 600 parts Calcium carbonate 200 parts Barium sulfate 280 parts Silane coupling agent 20 parts
【0021】実施例2 以下の配合処方に従って原材料を10リットルのハイス
ピードミキサー(三井鉱山社製)を用いて混合して顔料
組成物を製造した。回転数1000rpmで、室温で4
5分間攪拌混合して得られた顔料組成物を取り出した。
顔料組成物の色相は使用した各顔料のいずれの色相でも
ない色相鮮明なオレンジであった。Example 2 According to the following formulation, raw materials were mixed using a 10-liter high speed mixer (manufactured by Mitsui Mining Co., Ltd.) to prepare a pigment composition. Rotation speed 1000 rpm, room temperature 4
The pigment composition obtained by stirring and mixing for 5 minutes was taken out.
The hue of the pigment composition was a vivid orange, which was not any of the hues of the pigments used.
【0022】 イソインドリノン系顔料(C.I.Pigment Yellow 110) 820部 イソインドリノン系顔料 (C.I.Pigment Orange 61) 30部 二酸化チタン 650部 炭酸カルシウム 200部 硫酸バリウム 280部 シランカップリング剤 20部Isoindolinone pigment (C.I.Pigment Yellow 110) 820 parts Isoindolinone pigment (C.I.Pigment Orange 61) 30 parts Titanium dioxide 650 parts Calcium carbonate 200 parts Barium sulfate 280 parts Silane coupling agent 20 parts
【0023】比較例1 以下の配合処方に従って原材料をボールミルを用いて混
合して顔料組成物を製造した。回転数60rpmで、室
温で10分間回転混合して得られた顔料組成物を取り出
した。 縮合アゾ系顔料(C.I.Pigment Yellow 95) 800部 モノアゾ系顔料 (C.I.Pigment Orange 36) 50部 酸化鉄エロー 50部 二酸化チタン 600部 炭酸カルシウム 200部 硫酸バリウム 280部 シランカップリング剤 20部Comparative Example 1 A pigment composition was produced by mixing the raw materials using a ball mill according to the following formulation. The pigment composition obtained by rotating and mixing at room temperature for 10 minutes at a rotation speed of 60 rpm was taken out. Condensed azo pigment (CIPigment Yellow 95) 800 parts Monoazo pigment (CIPigment Orange 36) 50 parts Iron oxide yellow 50 parts Titanium dioxide 600 parts Calcium carbonate 200 parts Barium sulfate 280 parts Silane coupling agent 20 parts
【0024】比較例2 以下の配合処方に従って原材料をボールミルを用いて混
合して顔料組成物を製造した。回転数60rpmで、室
温で10分間回転混合して得られた顔料組成物を取り出
した。 イソインドリノン系顔料(C.I.Pigment Yellow 110) 820部 イソインドリノン系顔料 (C.I.Pigment Orange 61) 30部 二酸化チタン 650部 炭酸カルシウム 200部 硫酸バリウム 280部 シランカップリング剤 20部Comparative Example 2 A pigment composition was produced by mixing the raw materials in a ball mill according to the following formulation. The pigment composition obtained by rotating and mixing at room temperature for 10 minutes at a rotation speed of 60 rpm was taken out. Isoindolinone pigment (CIPigment Yellow 110) 820 parts Isoindolinone pigment (CIPigment Orange 61) 30 parts Titanium dioxide 650 parts Calcium carbonate 200 parts Barium sulfate 280 parts Silane coupling agent 20 parts
【0025】評価例1 実施例1及び比較例1で得られた顔料組成物及び一般に
使用される赤味G色の黄鉛顔料の夫々を用い、下記の配
合処方により塗料を調製し、流し塗り法により塗板を作
成した。塗布部を自然乾燥させ、色相を評価した。 常乾型アルキッド樹脂 100部 ミネラルターペン 10部 顔 料 5部Evaluation Example 1 Using each of the pigment compositions obtained in Example 1 and Comparative Example 1 and the commonly used reddish G-colored yellow lead pigment, a coating composition was prepared according to the following formulation and was flow coated. A coated plate was prepared by the method. The coated part was naturally dried and the hue was evaluated. Permanently dry alkyd resin 100 parts Mineral terpene 10 parts Facial agent 5 parts
【0026】実施例1で得られた顔料組成物を用いた場
合は、黄鉛顔料を用いた場合と同様に色相鮮明なオレン
ジ色を呈した。しかしながら、比較例1で得られた顔料
を用いた場合は、やや白っぽい、くすんだ黄色の色相で
あった。倍率30,000倍での走査型顕微鏡観察の結
果、実施例1で得られた顔料組成物では有機顔料が無機
質粒子表面に付着しているのが確認されたが、比較例1
の顔料組成物では、有機顔料の付着は認められなかっ
た。When the pigment composition obtained in Example 1 was used, a clear hue of orange was exhibited as in the case of using the yellow lead pigment. However, when the pigment obtained in Comparative Example 1 was used, the hue was slightly whitish and dull yellow. As a result of observation with a scanning microscope at a magnification of 30,000, it was confirmed that in the pigment composition obtained in Example 1, the organic pigment was attached to the surface of the inorganic particles, but Comparative Example 1
No adhesion of organic pigment was observed in the pigment composition of 1.
【0027】評価例2 実施例1及び比較例1で得られた顔料組成物及び一般に
使用される赤味G色の黄鉛顔料の夫々を、硝化綿クリヤ
ラッカーでペイントコンディショナーにより、粒度が1
0〜20μmになるまで分散させた。さらに追加の硝化
綿クリヤラッカーを加え、再度ペイントコンディショナ
ーにかけて塗料を作成した。得られた塗料を6ミルのア
プリケーターにて隠蔽力試験紙に展色した。塗布部を自
然乾燥させ、黒帯部分を肉眼により評価した。実施例1
で得られた顔料組成物は黄鉛顔料と同等の隠蔽力を有し
ていたが、比較例1で得られた顔料組成物の隠蔽力は不
十分であった。Evaluation Example 2 Each of the pigment compositions obtained in Example 1 and Comparative Example 1 and the commonly used reddish G-colored yellow lead pigment were adjusted to a particle size of 1 with a paint conditioner using a nitrification cotton clear lacquer.
It was dispersed until it became 0 to 20 μm. Furthermore, an additional nitrified cotton clear lacquer was added, and the paint was applied again to the paint conditioner to prepare the paint. The resulting paint was spread on a hiding power test paper with a 6 mil applicator. The applied part was naturally dried, and the black band part was evaluated with the naked eye. Example 1
The pigment composition obtained in 1. had a hiding power equivalent to that of the yellow lead pigment, but the hiding power of the pigment composition obtained in Comparative Example 1 was insufficient.
【0028】評価例3 評価例2で作成した塗料の夫々を6ミルのアプリケータ
にてアルミテストパネルに展色し、自然乾燥させた。次
に、塗板をウェザーオメーターに200時間照射し、未
照射の塗板との色相の変化を色差計にて比較した。結果
を表1に示した。表1の結果は、実施例1で得られた顔
料組成物は、黄鉛顔料よりも耐候性が優れていることを
示している。また、比較例1で得られた顔料組成物は、
いずれよりも耐候性が劣ることを示している。Evaluation Example 3 Each of the paints prepared in Evaluation Example 2 was spread on an aluminum test panel with a 6 mil applicator and naturally dried. Next, the coated plate was irradiated with a weatherometer for 200 hours, and the change in hue with that of the unirradiated coated plate was compared with a color difference meter. The results are shown in Table 1. The results in Table 1 show that the pigment composition obtained in Example 1 has better weather resistance than the yellow lead pigment. The pigment composition obtained in Comparative Example 1 was
It shows that the weather resistance is inferior to any of them.
【0029】[0029]
【表1】 [Table 1]
【0030】評価例4 実施例2及び比較例2で得られた顔料組成物及び赤味G
色の耐熱性改良黄鉛の夫々を下記の配合処方で、220
℃の温度で溶融した溶着型トラフィックペイントにディ
ゾルバーで分散させて塗料を作成した。溶融状態のこの
塗料の一部を取り出し、3種用アプリケータで塗板を作
成した。このとき、顔料組成物あるいは顔料を投入して
から5分後にサンプリングして作成した塗板をブランク
とし、同様に1時間後及び2時間後にサンプリングして
作成した塗板とブランクとの色相変化を色差計で比較し
た。結果を表2に示した。表2の結果は、実施例2で得
られた顔料組成物は耐熱性が優れていることを示してい
る。Evaluation Example 4 Pigment composition obtained in Example 2 and Comparative Example 2 and redness G
Each of the color-improved heat-resistant yellow lead has the following formulation and 220
A welding type traffic paint melted at a temperature of ° C was dispersed with a dissolver to prepare a paint. A part of this molten paint was taken out, and a coated plate was prepared using a three-kind applicator. At this time, the coated plate prepared by sampling 5 minutes after the pigment composition or the pigment was added was used as a blank, and the hue change between the coated plate prepared by sampling 1 hour and 2 hours later and the blank was measured by a color difference meter. Compared with. The results are shown in Table 2. The results in Table 2 show that the pigment composition obtained in Example 2 has excellent heat resistance.
【0031】寒 水 石 250部 炭酸カルシウム 250部 石油樹脂 150部 可 塑 剤 10部 ガラスビーズ 150部Cold water stone 250 parts Calcium carbonate 250 parts Petroleum resin 150 parts Plasticizer 10 parts Glass beads 150 parts
【0032】[0032]
【表2】 [Table 2]
【0033】実施例2及び比較例2の顔料組成物を3
0,000倍の倍率で走査型顕微鏡により観察した結
果、実施例2の顔料組成物では、有機顔料が無機質粒子
の表面に付着していることが確認されたが、比較例2の
顔料組成物では有機顔料の付着は認められなかった。3 of the pigment compositions of Example 2 and Comparative Example 2 were used.
As a result of observing with a scanning microscope at a magnification of 10,000 times, in the pigment composition of Example 2, it was confirmed that the organic pigment adhered to the surface of the inorganic particles, but the pigment composition of Comparative Example 2 No adhesion of organic pigment was observed.
【0034】評価例5 評価例4で作成した実施例2の顔料組成物及び耐熱性改
良黄鉛を用いた溶着塗料の夫々の一部を取り出し、3種
アプリケーターで塗板を作成し、塗膜が硬化しない間に
塗膜上にガラスビーズ1号を散布した。得られた夫々の
塗板に暗所でライトを照射し、再帰反射性を確認したと
ころ、いずれも同等の視認性が得られた。Evaluation Example 5 A part of each of the welding paints using the pigment composition of Example 2 and the heat-resistant improved yellow lead prepared in Evaluation Example 4 was taken out, a coated plate was prepared with a 3 type applicator, and the coating film was formed. Glass beads No. 1 were sprinkled on the coating film while not curing. When each of the obtained coated plates was irradiated with a light in a dark place and its retroreflectivity was confirmed, the same visibility was obtained.
【0035】[0035]
【発明の効果】本発明方法で得られた顔料組成物は、黄
鉛に代わる無公害で、隠蔽性、耐候性、耐熱性及び再帰
反射性に優れたトラフィックペイント用顔料組成物とし
て有用である。INDUSTRIAL APPLICABILITY The pigment composition obtained by the method of the present invention is a pollution-free alternative to yellow lead and is useful as a pigment composition for traffic paint which is excellent in hiding property, weather resistance, heat resistance and retroreflective property. .
Claims (6)
顔料を5重量%以上含む無機質粒子とからなり、上記有
機顔料が上記無機質粒子表面に付着していることを特徴
とするトラフィックペイント用顔料組成物。1. A traffic comprising an organic pigment and inorganic particles containing 5% by weight or more of an inorganic pigment having a refractive index of 2.2 or more, wherein the organic pigment adheres to the surface of the inorganic particle. Pigment composition for paint.
ンエロー顔料である請求項1に記載の顔料組成物。2. The pigment composition according to claim 1, wherein the inorganic pigment is a titanium dioxide pigment or a titanium yellow pigment.
ルシウム、硫酸バリウム及び雲母から選択される少なく
とも一種である請求項1に記載の顔料組成物。3. The pigment composition according to claim 1, wherein the inorganic particles are at least one selected from iron oxide yellow pigment, calcium carbonate, barium sulfate and mica.
ペリノン系顔料、ペリレン系顔料、キナクリドン系顔
料、ジケトピロロピロール系顔料、縮合アゾ系顔料、モ
ノアゾ系顔料及びジスアゾ系顔料から選択される少なく
とも一種である請求項1に記載の顔料組成物。4. The organic pigment is an isoindolinone pigment,
The pigment composition according to claim 1, which is at least one selected from perinone pigments, perylene pigments, quinacridone pigments, diketopyrrolopyrrole pigments, condensed azo pigments, monoazo pigments and disazo pigments.
顔料を5重量%以上含む無機質粒子とを機械的に固体状
態で混合摩砕することを特徴とするトラフィックペイン
ト用顔料組成物の製造方法。5. A pigment composition for traffic paint, which comprises mechanically mixing and grinding an organic pigment and inorganic particles containing 5% by weight or more of an inorganic pigment having a refractive index of 2.2 or more in a solid state. Manufacturing method.
項5に記載の顔料組成物の製造方法。6. The method for producing a pigment composition according to claim 5, wherein the mixture is ground by mixing under the action of compression and shearing.
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JP14580494A JP2939934B2 (en) | 1994-06-06 | 1994-06-06 | Pigment composition for traffic paint and method for producing the same |
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JP14580494A JP2939934B2 (en) | 1994-06-06 | 1994-06-06 | Pigment composition for traffic paint and method for producing the same |
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JP2939934B2 JP2939934B2 (en) | 1999-08-25 |
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JP14580494A Expired - Fee Related JP2939934B2 (en) | 1994-06-06 | 1994-06-06 | Pigment composition for traffic paint and method for producing the same |
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JPH10114863A (en) * | 1996-10-11 | 1998-05-06 | Rejino Color Kogyo Kk | Pigment composition for road marking paint |
JP2001226609A (en) * | 1999-12-10 | 2001-08-21 | Toda Kogyo Corp | Green pigment and paint using the same and resin composition |
JP2002161221A (en) * | 2000-09-14 | 2002-06-04 | Toda Kogyo Corp | Fine green-based color pigment, coating and resin composition both using the fine green-based color pigment |
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