JPH09227791A - New crystal type monoazo lake pigment - Google Patents

New crystal type monoazo lake pigment

Info

Publication number
JPH09227791A
JPH09227791A JP3189696A JP3189696A JPH09227791A JP H09227791 A JPH09227791 A JP H09227791A JP 3189696 A JP3189696 A JP 3189696A JP 3189696 A JP3189696 A JP 3189696A JP H09227791 A JPH09227791 A JP H09227791A
Authority
JP
Japan
Prior art keywords
pigment
lake pigment
diffraction
parts
monoazo lake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3189696A
Other languages
Japanese (ja)
Inventor
Masao Shukutani
正夫 宿谷
Shinichi Sunochi
伸一 須之内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP3189696A priority Critical patent/JPH09227791A/en
Publication of JPH09227791A publication Critical patent/JPH09227791A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B63/00Lakes
    • C09B63/005Metal lakes of dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a new pigment having a specific chemical structure and crystal form, excellent in clearness, coloring power and luster, showing a hue close to a barium lake pigment, not having a toxicity, and useful for coloring a plastic and for a printing ink, a paint, etc. SOLUTION: This new crystal type monoazo lake pigment is strontium bis 4-chloro-3-methyl-1-[(2-naphthol-1-yl) azo] benzene-6-sulfonate} of the formula and constituted by a crystal form having a strong diffraction intensity at 5.4 deg. angle of diffraction in an X ray diffraction chart (2θ±0.2 deg.;Cu-κα ) and weak intensities at 7.1 deg., 9.3 deg., 11.7 deg., 14.1 deg., 21.7 deg. and 24.8 deg.. The pigment is obtained e.g. by dripping a diazotizing liquid of 1-amino-3-methyl-4-chlorobenzene-6-sulfonic acid into a coupler liquid of 2-naphthol, adjusting the liquid to pH 9 after the completion of the reaction, adding an aqueous strontium salt solution and then an aqueous solution of a polyoxyethylene alkyl ether, agitating at 90 deg.C for 3hr, filtering while the reaction mixture is hot, an drying the residue at 50 deg.C.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、鮮明性、着色力、
光沢に優れ、印刷インキ、塗料、プラスチック着色剤、
文具用等に賞用される赤色系新規モノアゾレーキ顔料に
関するものである。
TECHNICAL FIELD The present invention relates to sharpness, coloring power,
Excellent in gloss, printing ink, paint, plastic colorant,
The present invention relates to a novel red-based monoazo lake pigment that is used for stationery and the like.

【0002】[0002]

【従来の技術】従来、赤色顔料としては、C.I.ピグ
メント レッド53:1、C.I.ピグメント レッド
48:1の如きバリウムレーキ顔料が大量に使用されて
きたが、これらの顔料には、毒性を示すバリウム金属が
含まれるため、規制が強化され、用途によっては、使用
が制限されつつある。
2. Description of the Related Art Conventionally, red pigments include C.I. I. Pigment Red 53: 1, C.I. I. Pigment Red 48: 1, barium lake pigments have been used in large quantities, but these pigments contain barium metal which is toxic, so regulations are tightened and their use is being limited in some applications. .

【0003】バリウムレーキ顔料に代わる赤色顔料とし
ては、構造式(1)
As a red pigment which replaces the barium lake pigment, there is a structural formula (1)

【0004】[0004]

【化2】 Embedded image

【0005】で示されるモノアゾレーキ顔料が知られて
いる。この顔料は、例えば、構造式(2)
Monoazo lake pigments represented by are known. This pigment has, for example, structural formula (2)

【0006】[0006]

【化3】 Embedded image

【0007】で示されるアミンを5℃以下でジアゾ化し
て得たジアゾ成分と、β−ナフトールを苛性ソーダ水溶
液に溶解して得たカップラー成分とを、カップリング反
応させて得られた構造式(3)
A structural formula (3) obtained by coupling reaction of a diazo component obtained by diazotizing an amine represented by the formula at 5 ° C. or lower with a coupler component obtained by dissolving β-naphthol in an aqueous solution of caustic soda. )

【0008】[0008]

【化4】 Embedded image

【0009】で示されるモノアゾ染料の懸濁液にストロ
ンチウム塩の水溶液を加え、レーキ化することにより得
られていた。
It was obtained by adding an aqueous solution of a strontium salt to a suspension of the monoazo dye represented by the formula (1) to form a lake.

【0010】こうして得られた構造式(1)で示される
従来のモノアゾレーキ顔料は、X線回折図において回折
角度(2θ±0.2゜;Cu−Kα)4.7°に強い回
折強度を有し、9.4゜、14.1゜、26.0゜に中
程度の回折強度を有し、5.1゜、7.6゜、21.0
゜、23.4゜、25.4゜及び26.8゜に比較的弱
い回折強度を有している。
The conventional monoazo lake pigment represented by the structural formula (1) thus obtained has a strong diffraction intensity at the diffraction angle (2θ ± 0.2 °; Cu-Kα) 4.7 ° in the X-ray diffraction pattern. However, it has a medium diffraction intensity at 9.4 °, 14.1 °, 26.0 °, 5.1 °, 7.6 °, 21.0.
It has relatively weak diffraction intensities at °, 23.4 °, 25.4 ° and 26.8 °.

【0011】[0011]

【発明が解決しようとする課題】しかしながら、上記の
X線回折パターンを有する結晶型(以下、α型と称す)
のモノアゾレーキ顔料は、印刷インキや塗料にした場
合、鮮明性、着色力、光沢が劣り、プラスチックの着色
剤としても実用性の低い顔料であった。
However, the crystalline form having the above X-ray diffraction pattern (hereinafter referred to as α form)
When used as a printing ink or paint, the monoazo lake pigment of No. 1 was inferior in sharpness, tinting strength and gloss, and was not practical as a coloring agent for plastics.

【0012】本発明が解決しようとする課題は、印刷イ
ンキや塗料にした場合に、鮮明性、着色力及び光沢に優
れ、プラスチックの着色剤としても実用性の高い新規な
結晶型を有する構造式(1)で示されるモノアゾレーキ
顔料を提供することにある。
The problem to be solved by the present invention is to provide a structural formula having a novel crystal form which is excellent in sharpness, coloring power and gloss when used as a printing ink or paint and which is also highly practical as a coloring agent for plastics. It is to provide a monoazo lake pigment represented by (1).

【0013】[0013]

【課題を解決するための手段】本発明者等は、上記課題
を解決するために、構造式(1)
Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have made structural formula (1)

【0014】[0014]

【化5】 Embedded image

【0015】で示されるモノアゾレーキ顔料の顔料化法
について鋭意検討した結果、当該顔料を特定の条件下に
熱処理すると、X線回折パターンを異にし、鮮明性、着
色力、光沢等に優れた新しい結晶型の顔料が得られるこ
とを見出し、本発明を完成するに至った。
As a result of extensive studies on the method of pigmentation of the monoazo lake pigment represented by the formula (1), when the pigment is heat-treated under a specific condition, a new crystal having a different X-ray diffraction pattern and having excellent sharpness, tinting strength, gloss, etc. It has been found that a pigment of a type can be obtained, and the present invention has been completed.

【0016】即ち、本発明は上記課題を解決するため
に、X線回折図において回折角度(2θ±0.2゜;C
u−Kα)5.4°に強い回折強度を有し、7.1゜、
9.3゜、11.7゜、14.1゜、21.7゜及び2
4.8゜に弱い回折強度を有することを特徴とする上記
構造式(1)で示されるモノアゾレーキ顔料を提供す
る。
That is, according to the present invention, in order to solve the above problems, the diffraction angle (2θ ± 0.2 °; C
u-Kα) has a strong diffraction intensity at 5.4 °, 7.1 °,
9.3 °, 11.7 °, 14.1 °, 21.7 ° and 2
Provided is a monoazo lake pigment represented by the above structural formula (1), which has a weak diffraction intensity at 4.8 °.

【0017】[0017]

【発明の実施の形態】本発明のモノアゾレーキ顔料のX
線回折図において、弱い回折強度を有する回折角度7.
1゜、9.3゜、11.7゜、14.1゜、21.7゜
及び24.8゜におけるそれぞれのピーク高さが、回折
角度5.4°におけるピーク高さの5〜40%の範囲に
ある。
BEST MODE FOR CARRYING OUT THE INVENTION X of the monoazo lake pigment of the present invention
Diffraction angle of 7.
The peak heights at 1 °, 9.3 °, 11.7 °, 14.1 °, 21.7 ° and 24.8 ° are 5 to 40% of the peak heights at the diffraction angle of 5.4 °. Is in the range.

【0018】本発明のモノアゾレーキ顔料は、上記した
ようにα型顔料とは全く異なるX線回折パターンを有す
る結晶型(以下、δ型と称す)の顔料である。本発明の
モノアゾレーキ顔料は、例えば、従来と同様にして得た
構造式(3)で示されるモノアゾ染料の懸濁液にストロ
ンチウム塩の水溶液を加え、レーキ化し、非イオン性界
面活性剤の存在下、80〜90℃で熱処理することによ
り製造することができる。また、本発明のモノアゾレー
キ顔料は、非イオン性界面活性剤の存在下に構造式
(3)で示されるモノアゾ染料を合成し、ストロンチウ
ム塩の水溶液を加えレーキ化し、80〜90℃で熱処理
することにより製造することもできる。
The monoazo lake pigment of the present invention is a crystal type (hereinafter referred to as δ type) pigment having an X-ray diffraction pattern which is completely different from that of the α type pigment as described above. The monoazo lake pigment of the present invention is prepared, for example, by adding an aqueous solution of a strontium salt to a suspension of the monoazo dye represented by the structural formula (3) obtained in the same manner as in the prior art to form a lake, and in the presence of a nonionic surfactant. It can be manufactured by heat treatment at 80 to 90 ° C. The monoazo lake pigment of the present invention is prepared by synthesizing a monoazo dye represented by the structural formula (3) in the presence of a nonionic surfactant, adding an aqueous solution of a strontium salt to form a lake, and heat-treating at 80 to 90 ° C. Can also be manufactured by.

【0019】本発明のモノアゾレーキ顔料を製造する際
に使用する非イオン性界面活性剤としては、例えば、ポ
リオキシエチレンアルキルエーテル、ポリオキシエチレ
ンアルキルアリルエーテル、ポリオキシエチレンアルキ
ルアミン、ポリオキシエチレン脂肪酸アミド等を挙げる
ことができ、その使用量は、一般的に当該顔料に対して
3〜100重量%の範囲が好ましく、使用時の品質等を
考慮すれば、3〜20重量%の範囲が特に好ましい。
Examples of the nonionic surfactant used in producing the monoazo lake pigment of the present invention include polyoxyethylene alkyl ethers, polyoxyethylene alkyl allyl ethers, polyoxyethylene alkyl amines and polyoxyethylene fatty acid amides. Etc., and the amount thereof is generally preferably in the range of 3 to 100% by weight with respect to the pigment, and particularly preferably in the range of 3 to 20% by weight in consideration of quality at the time of use. .

【0020】[0020]

【実施例】以下、実施例、比較例及び試験例を用いて、
本発明を更に詳細に説明するが、本発明はこれらの実施
例により限定されるものではない。尚、例中の「部」及
び「%」は、特に断りがない限り、重量基準である。
EXAMPLES Hereinafter, using Examples, Comparative Examples and Test Examples,
The present invention will be described in more detail, but the present invention is not limited by these examples. In addition, "part" and "%" in the examples are based on weight unless otherwise specified.

【0021】<実施例1>1−アミノ−3−メチル−4
−クロルベンゼン−6−スルホン酸17.7部を水25
0部に分散させた後、20%塩酸16.8部を加え、0
〜5℃で40%亜硝酸ソーダ水溶液14.2部を滴下
し、ジアゾ化してジアゾ液を得た。
<Example 1> 1-amino-3-methyl-4
-Chlorobenzene-6-sulfonic acid 17.7 parts with water 25
After being dispersed in 0 part, 16.8 parts of 20% hydrochloric acid was added,
14.2 parts of 40% sodium nitrite aqueous solution was added dropwise at -5 ° C to diazotize to obtain a diazo solution.

【0022】次に、β−ナフトール12.1部を、60
℃で、水400部と25%苛性ソーダ水溶液19.2部
に溶解させてカップラー溶液を得た。このカップラー溶
液を20℃に冷却し、攪拌しながらカップラー溶液に上
記ジアゾ液を滴下し、15℃で60分間攪拌してカップ
リング反応を終了させ、モノアゾ染料の懸濁液を得た。
Next, 12.1 parts of β-naphthol was added to 60 parts.
A coupler solution was obtained by dissolving in 400 parts of water and 19.2 parts of a 25% aqueous sodium hydroxide solution at a temperature of ° C. This coupler solution was cooled to 20 ° C., the above diazo solution was added dropwise to the coupler solution while stirring, and the coupling reaction was terminated by stirring at 15 ° C. for 60 minutes to obtain a suspension of monoazo dye.

【0023】この懸濁液に、5%塩酸を滴下し、pHを
9.0に調整した。次いで塩化ストロンチウム6水和物
16.1部を水100部に溶解した液を加え、さらに、
ポリオキシエチレンアルキルエーテル(花王株式会社製
の「エマルゲン147」)3.8部を水200部に溶解
した液を加えた後、75分間かけて90℃まで加熱し、
同温度で180分間攪拌してから熱時ろ過し、残渣を水
で洗浄した。洗浄した残渣を50℃で二昼夜かけて乾燥
させた後、粉砕して黄味赤色のモノアゾレーキ顔料粉末
34.4部を得た。
5% hydrochloric acid was added dropwise to this suspension to adjust the pH to 9.0. Then, a solution prepared by dissolving 16.1 parts of strontium chloride hexahydrate in 100 parts of water was added, and further,
A solution prepared by dissolving 3.8 parts of polyoxyethylene alkyl ether (“Emulgen 147” manufactured by Kao Corporation) in 200 parts of water was added, and then heated to 90 ° C. over 75 minutes,
The mixture was stirred at the same temperature for 180 minutes, filtered while hot, and the residue was washed with water. The washed residue was dried at 50 ° C. for two days and nights and then pulverized to obtain 34.4 parts of yellowish red monoazo lake pigment powder.

【0024】このようにして得た顔料について、理学電
機株式会社製のX線回折装置「RINT1100」を用
いて粉末X線回折法により、Cu−Kα線照射による回
折状態を記録し、図1にその結果を示した。この顔料
は、図1のX線回折図において回折角度(2θ±0.2
゜;Cu−Kα)5.4°に強い回折強度を有し、7.
1゜、9.3゜、11.7゜、14.1゜、21.7゜
及び24.8゜に弱い回折強度を有していた。
With respect to the pigment thus obtained, a diffraction state by Cu-Kα ray irradiation was recorded by a powder X-ray diffraction method using an X-ray diffractometer "RINT1100" manufactured by Rigaku Denki Co., Ltd. The results are shown. This pigment has a diffraction angle (2θ ± 0.2 in the X-ray diffraction pattern of FIG. 1).
.Degree .; Cu-K.alpha.) Having a strong diffraction intensity at 5.4.degree.
It had weak diffraction intensities at 1 °, 9.3 °, 11.7 °, 14.1 °, 21.7 ° and 24.8 °.

【0025】なお、X線回折装置の設定は以下の通りと
した。 使用電力:40KV、30mA サンプリング角度:0.020゜ 発散・散乱スリット:1゜ 受光スリット:0.30mm スキャンスピード:8゜/分
The X-ray diffractometer was set as follows. Power consumption: 40 KV, 30 mA Sampling angle: 0.020 ゜ Divergence / scattering slit: 1 ゜ Receiving slit: 0.30 mm Scanning speed: 8 ゜ / min

【0026】<実施例2>1−アミノ−3−メチル−4
−クロルベンゼン−6−スルホン酸17.7部を水25
0部に分散させた後、20%塩酸16.8部を加え、0
〜5℃で40%亜硝酸ソーダ水溶液14.2部を滴下
し、ジアゾ化してジアゾ液を得た。
<Example 2> 1-amino-3-methyl-4
-Chlorobenzene-6-sulfonic acid 17.7 parts with water 25
After being dispersed in 0 part, 16.8 parts of 20% hydrochloric acid was added,
14.2 parts of 40% sodium nitrite aqueous solution was added dropwise at -5 ° C to diazotize to obtain a diazo solution.

【0027】次に、β−ナフトール12.1部を60℃
で水400部と25%苛性ソーダ水溶液19.2部に溶
解した後、ポリオキシエチレンアルキルアミン(日光ケ
ミカルズ株式会社製の「TAMNS−10」)1.6部
を加えカップラー溶液を得た。このカップラー溶液を2
0℃に冷却し、攪拌しながらカップラー溶液に上記ジア
ゾ液を滴下し、15℃で60分間攪拌してカップリング
反応を終了させ、モノアゾ染料の懸濁液を得た。
Next, 12.1 parts of β-naphthol was added at 60 ° C.
Was dissolved in 400 parts of water and 19.2 parts of a 25% caustic soda aqueous solution, and then 1.6 parts of polyoxyethylene alkylamine (“TAMNS-10” manufactured by Nikko Chemicals Co., Ltd.) was added to obtain a coupler solution. Add this coupler solution to 2
After cooling to 0 ° C., the above diazo solution was added dropwise to the coupler solution with stirring, and the coupling reaction was terminated by stirring at 15 ° C. for 60 minutes to obtain a monoazo dye suspension.

【0028】この懸濁液に、5%塩酸を滴下し、pHを
9.0に調整した。次いで塩化ストロンチウム6水和物
16.1部を水100部に溶解した液を加え、75分間
かけて90℃まで加熱し、同温度で180分間攪拌して
から熱時ろ過し、残渣を水で洗浄した。洗浄した残渣を
50℃で二昼夜かけて乾燥させた後、粉砕して黄味赤色
のモノアゾレーキ顔料粉末34.0部を得た。
5% hydrochloric acid was added dropwise to this suspension to adjust the pH to 9.0. Next, a solution prepared by dissolving 16.1 parts of strontium chloride hexahydrate in 100 parts of water was added, heated to 90 ° C. over 75 minutes, stirred at the same temperature for 180 minutes, and filtered while hot, and the residue was washed with water. Washed. The washed residue was dried at 50 ° C. for two days and nights and then pulverized to obtain 34.0 parts of yellowish red monoazo lake pigment powder.

【0029】このようにして得た顔料について、実施例
1と同様にして粉末X線回折法により、Cu−Kα線照
射による回折状態を記録した結果、実施例1の場合と同
様の回折角度にほぼ同様の回折強度を有していた。
With respect to the thus-obtained pigment, the diffraction state by Cu-Kα ray irradiation was recorded by the powder X-ray diffraction method in the same manner as in Example 1. As a result, the diffraction angle was the same as in Example 1. It had almost the same diffraction intensity.

【0030】<比較例1>実施例1において、ポリオキ
シエチレンアルキルエーテル(花王株式会社製の「エマ
ルゲン147」)を使用しなかった以外は、実施例1と
同様にして赤色のモノアゾレーキ顔料粉末33.1部を
得た。
Comparative Example 1 Red monoazo lake pigment powder 33 was prepared in the same manner as in Example 1 except that polyoxyethylene alkyl ether (“Emulgen 147” manufactured by Kao Corporation) was not used. .1 part was obtained.

【0031】このようにして得た顔料について、実施例
1と同様にして粉末X線回折法により、Cu−Kα線照
射による回折状態を記録し、図2にその結果を示した。
この顔料は、図2のX線回折図において回折角度(2θ
±0.2゜;Cu−Kα)4.7°に強い回折強度を有
し、9.4゜、14.1゜、26.0゜に中程度の回折
強度を有し、5.1゜、7.6゜、21.0゜、23.
4゜、25.4゜及び26.8゜に比較的弱い回折強度
を有していた。
With respect to the pigment thus obtained, the diffraction state by Cu-Kα ray irradiation was recorded by the powder X-ray diffraction method in the same manner as in Example 1, and the results are shown in FIG.
This pigment has a diffraction angle (2θ) in the X-ray diffraction diagram of FIG.
± 0.2 °; Cu-Kα) has a strong diffraction intensity at 4.7 °, medium diffraction intensity at 9.4 °, 14.1 °, 26.0 °, and 5.1 °. , 7.6 °, 21.0 °, 23.
It had relatively weak diffraction intensities at 4 °, 25.4 ° and 26.8 °.

【0032】<試験例1>(インキ試験) 各実施例及び比較例で得たいずれかの顔料0.5部とイ
ンキワニス(大日本インキ化学工業株式会社製の「MG
−63ワニス」)1.5部を、オートマチックフーバー
マーラーを用いて150ポンドの荷重をかけ、100回
転で3回練肉してインキを調製した。これを濃色インキ
とし、小型輪転印刷機(プルフバウ印刷機)を用いてア
ート紙に展色した。得られた展色紙の彩度(C*)を分
光光度計(データカラーインターナショナル社(Dataco
lor International)製の「スペクトラフラッシュ(SP
ECTRAFLASH)500」)により、光沢(60゜)をヘイ
ズグロスメーター(ビー・ワイ・ケイ・ガードナー・イ
ンコーポレーテッド(BYK-Gardner Inc.)製)によりそ
れぞれ測定し、その結果を表1に示した。
<Test Example 1> (Ink test) 0.5 part of the pigment obtained in each of the Examples and Comparative Examples and an ink varnish (“MG manufactured by Dainippon Ink and Chemicals, Inc.”
-63 varnish ") was applied at a load of 150 pounds using an automatic Hoover Mahler and kneaded three times at 100 revolutions to prepare an ink. This was used as a dark color ink, and was color-printed on art paper using a small rotary printing machine (Pulfow printing machine). The saturation (C *) of the obtained color-developed paper was measured by a spectrophotometer (Datacolor International
Spectra Flash (SP by lor International)
ECTRAFLASH) 500 ") and gloss (60 °) were measured with a haze gloss meter (manufactured by BYK-Gardner Inc.), and the results are shown in Table 1.

【0033】これとは別に、各実施例及び比較例で得た
いずれかの顔料0.1部と酸化チタン(石原産業株式会
社製の「タイペークR−550」)2.0部とインキワ
ニス(大日本インキ化学工業株式会社製の「MG−63
ワニス」)1.3部を、オートマチックフーバーマーラ
ーで150ポンドの荷重をかけ、100回転で3回練肉
してインキを調製した。これを淡色インキとし、展色紙
にヘラで引き、濃度をグレタグ濃度計(グレタグ(GRET
AG)社製の「D186」)により測定し、その結果を表
1に示した。
Separately from this, 0.1 part of any of the pigments obtained in each of the examples and comparative examples, 2.0 parts of titanium oxide ("Taipec R-550" manufactured by Ishihara Sangyo Co., Ltd.) and ink varnish (large) "MG-63" manufactured by Nippon Ink Chemical Co., Ltd.
1.3 parts of "varnish") was applied with an automatic Hoover Mahler under a load of 150 pounds and kneaded three times at 100 revolutions to prepare an ink. Using this as a light-colored ink, draw it with a spatula on the color-developed paper and measure the density with a Gretag densitometer (GRETAG (GRET
"D186" manufactured by AG), and the results are shown in Table 1.

【0034】[0034]

【表1】 [Table 1]

【0035】表1に示した結果から、実施例の顔料を用
いたインキの色相は、比較例の顔料を用いたインキと比
較して、光沢、濃度が高く優れていることが明らかであ
る。
From the results shown in Table 1, it is clear that the hue of the ink using the pigment of the example is excellent in gloss and density as compared with the ink using the pigment of the comparative example.

【0036】<試験例2>(プラスチック着色試験) 各実施例及び比較例で得たいずれかの顔料4部、ステア
リン酸亜鉛(堺化学工業株式会社製の「SZ200
0」)4部から成るドライカラーをポリエチレン(三井
石油化学製の「Hi−Zex2100J」)4000部
と混合し、インジェクションモールディングマシン(日
精樹脂工業株式会社の「PS60E9A型」)を用い、
成型温度240℃で滞留時間5分の条件で平板を作製し
た。
<Test Example 2> (Plastic coloring test) 4 parts of any of the pigments obtained in each Example and Comparative Example, zinc stearate (“SZ200” manufactured by Sakai Chemical Industry Co., Ltd.)
0 ") Dry color consisting of 4 parts was mixed with 4000 parts of polyethylene (" Hi-Zex2100J "manufactured by Mitsui Petrochemical Co., Ltd.) and an injection molding machine (" PS60E9A type "manufactured by Nissei Plastic Co., Ltd.) was used.
A flat plate was prepared under the conditions of a molding temperature of 240 ° C. and a residence time of 5 minutes.

【0037】この平板について、試験例1で使用した分
光光度計により、彩度(C*)及び着色力を測定し、そ
の結果を表2に示した。
Chroma (C *) and tinting strength of this flat plate were measured by the spectrophotometer used in Test Example 1. The results are shown in Table 2.

【0038】[0038]

【表2】 [Table 2]

【0039】表2に示した結果から、実施例の顔料を用
いたプラスチックの色相は、比較例の顔料を用いたプラ
スチックと比較して、彩度が高く、鮮明性に優れ、さら
に着色力も優れていることが明らかである。
From the results shown in Table 2, the hue of the plastic using the pigment of the example is higher in saturation, excellent in sharpness and excellent in coloring power than the plastic using the pigment of the comparative example. It is clear that

【0040】[0040]

【発明の効果】本発明のδ型の結晶型を有するモノアゾ
レーキ顔料は、プラスチックの着色、印刷インキ及び塗
料等に使用した場合、鮮明性、着色力、光沢に優れるも
のである。
Industrial Applicability The monoazo lake pigment having the δ-type crystal form of the present invention is excellent in sharpness, tinting strength and gloss when used for coloring plastics, printing inks and paints.

【0041】また、本発明のδ型の結晶型を有するモノ
アゾレーキ顔料は、従来公知のバリウムレーキ顔料に近
似した色相を示し、かつ、ストロンチウムでレーキさ
れ、バリウムレーキ顔料のように毒性を示すバリウム金
属を含まないので、バリウムレーキ顔料の代替品として
極めて有用である。
The monoazo lake pigment having a δ-type crystal form of the present invention has a hue similar to that of a conventionally known barium lake pigment, and is barium metal which is laked with strontium and is toxic like a barium lake pigment. Therefore, it is extremely useful as a substitute for barium lake pigment.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例1で得た本発明のモノアゾレーキ顔料
(δ型)のX線回折図(2θ±0.2゜;Cu−Kα)
である。
FIG. 1 is an X-ray diffraction pattern (2θ ± 0.2 °; Cu-Kα) of the monoazo lake pigment (δ type) of the present invention obtained in Example 1.
It is.

【図2】比較例で得たモノアゾレーキ顔料(α型)のX
線回折図(2θ±0.2゜;Cu−Kα)である。
FIG. 2 shows X of the monoazo lake pigment (α type) obtained in Comparative Example.
It is a line diffraction diagram (2θ ± 0.2 °; Cu-Kα).

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 X線回折図において回折角度(2θ±
0.2゜;Cu−Kα)5.4°に強い回折強度を有
し、7.1゜、9.3゜、11.7゜、14.1゜、2
1.7゜及び24.8゜に弱い回折強度を有することを
特徴とする構造式(1) 【化1】 で示されるモノアゾレーキ顔料。
1. A diffraction angle (2θ ±
0.2 °; Cu-Kα) has a strong diffraction intensity at 5.4 °, 7.1 °, 9.3 °, 11.7 °, 14.1 °, 2
Structural formula (1) characterized by having a weak diffraction intensity at 1.7 ° and 24.8 ° Monoazo lake pigment shown by.
【請求項2】 回折角度(2θ±0.2゜;Cu−K
α)7.1゜、9.3゜、11.7゜、14.1゜、2
1.7゜及び24.8゜におけるそれぞれのピーク高さ
が、回折角度5.4°におけるピーク高さの5〜40%
の範囲にあることを特徴とする請求項1記載のモノアゾ
レーキ顔料。
2. A diffraction angle (2θ ± 0.2 °; Cu-K
α) 7.1 °, 9.3 °, 11.7 °, 14.1 °, 2
The respective peak heights at 1.7 ° and 24.8 ° are 5 to 40% of the peak height at the diffraction angle of 5.4 °.
The monoazo lake pigment according to claim 1, which is in the range of
JP3189696A 1996-02-20 1996-02-20 New crystal type monoazo lake pigment Pending JPH09227791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3189696A JPH09227791A (en) 1996-02-20 1996-02-20 New crystal type monoazo lake pigment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3189696A JPH09227791A (en) 1996-02-20 1996-02-20 New crystal type monoazo lake pigment

Publications (1)

Publication Number Publication Date
JPH09227791A true JPH09227791A (en) 1997-09-02

Family

ID=12343791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3189696A Pending JPH09227791A (en) 1996-02-20 1996-02-20 New crystal type monoazo lake pigment

Country Status (1)

Country Link
JP (1) JPH09227791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010732A1 (en) * 1998-12-19 2000-06-21 Clariant GmbH Preparation process of new crystalline modifications of pigment C.I. Pigment Red 53:2
US6913641B2 (en) * 2001-05-09 2005-07-05 Clariant Gmbh Laked monoazo pigments based on naphtholsulfonic acids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010732A1 (en) * 1998-12-19 2000-06-21 Clariant GmbH Preparation process of new crystalline modifications of pigment C.I. Pigment Red 53:2
US6913641B2 (en) * 2001-05-09 2005-07-05 Clariant Gmbh Laked monoazo pigments based on naphtholsulfonic acids

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