JPH05105817A - Monoazo dye - Google Patents

Monoazo dye

Info

Publication number
JPH05105817A
JPH05105817A JP4092730A JP9273092A JPH05105817A JP H05105817 A JPH05105817 A JP H05105817A JP 4092730 A JP4092730 A JP 4092730A JP 9273092 A JP9273092 A JP 9273092A JP H05105817 A JPH05105817 A JP H05105817A
Authority
JP
Japan
Prior art keywords
group
dye
dyeing
fastness
represented
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
Application number
JP4092730A
Other languages
Japanese (ja)
Other versions
JP3237775B2 (en
Inventor
Kiyoshi Himeno
清 姫野
Ryoichi Sekioka
遼一 関岡
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.)
Hoechst Mitsubishi Kasei Co Ltd
Original Assignee
Hoechst Mitsubishi Kasei Co Ltd
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Publication date
Application filed by Hoechst Mitsubishi Kasei Co Ltd filed Critical Hoechst Mitsubishi Kasei Co Ltd
Priority to JP09273092A priority Critical patent/JP3237775B2/en
Publication of JPH05105817A publication Critical patent/JPH05105817A/en
Application granted granted Critical
Publication of JP3237775B2 publication Critical patent/JP3237775B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide a blue monoazo disperse dye having a specified molecular structure, good alkali resistance, excellent pH dependency, and excellent fastness to alkaline sweat and light. CONSTITUTION:A monoazo dye of the formula (wherein R<1> is hydrogen, methyl or chlorine; R<2> is hydrogen or methyl; R<3> is 1-5C alkyl; R<4> is phenyl, benzyl, phenoxy, 1-5C alkoxy, 1-5C alkyl or benzyloxy; provided that the total of the number of carbon atoms of R<3> and R<4> is 4 or larger).

Description

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

【0001】[0001]

【産業上の利用分野】本発明は特に、pH依存性および
アルカリ汗堅牢度に優れた水不溶性の青色系モノアゾ分
散染料に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-insoluble blue monoazo disperse dye excellent in pH dependency and fastness to alkaline sweat.

【0002】[0002]

【従来の技術】近年、ポリエステル繊維は繊維の風合を
良くするためにアルカリ減量加工が施されることが多く
なっている。この場合、繊維中にアルカリが残存するこ
とにより、染色時のpHが高くなるため、従来の染料を
用いて染色すると染色時の再現性が低下するという問題
が生じている。例えば、特公昭57−47214号公報
には前記一般式〔I〕で示されるモノアゾ染料と同一の
基本骨格を有するが置換基が異なる染料、即ち、R1
びR2 が水素原子、R3 がエチル基、R4 がメチル基で
ある染料が記載されているが、該染料はpH依存性が著
しく劣り、アルカリ減量加工が施されたポリエステル繊
維の染色には適さない、又、該染料は、アルカリ汗堅牢
度の点でも劣るものである。
2. Description of the Related Art In recent years, polyester fibers are often subjected to alkali reduction processing in order to improve the texture of the fibers. In this case, since the alkali remains in the fiber, the pH at the time of dyeing becomes high, so that there is a problem that the reproducibility at the time of dyeing is lowered when dyeing with a conventional dye. For example, JP-B-57-47214 discloses a dye having the same basic skeleton as the monoazo dye represented by the general formula [I] but different substituents, that is, R 1 and R 2 are hydrogen atoms and R 3 is Although a dye having an ethyl group and R 4 as a methyl group is described, the dye has a remarkably poor pH dependency and is not suitable for dyeing a polyester fiber subjected to an alkali weight reduction process. It is also inferior in the fastness to alkaline sweat.

【0003】[0003]

【発明が解決しようとする課題】本発明は、良好なアル
カリ耐性を有し、pH依存性に優れ、しかも優れたアル
カリ汗堅牢度および耐光堅牢度を有する青色分散染料を
提供することを目的とするものである。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a blue disperse dye having good alkali resistance, excellent pH dependency, and excellent alkali sweat fastness and light fastness. To do.

【0004】[0004]

【課題を解決するための手段】本発明の要旨は、前記一
般式〔I〕で示されるモノアゾ染料に存する。以下、本
発明を詳細に説明する。前記一般式〔I〕に於てR1
水素原子、メチル基または塩素原子を、R2 は水素原子
またはメチル基を表わす。R3 で表わされるC1 〜C5
アルキル基としては、メチル基、エチル基、n−プロピ
ル基、i−プロピル基、n−ブチル基、sec−ブチル
基、n−ペンチル基等の直鎖状または分岐鎖状のC1
5 アルキル基があげられる。又、R4 は、フェニル
基、ベンジル基、フェノキシ基、C 1 〜C5 アルコキシ
基、C1 〜C5 アルキル基またはベンジルオキシ基を表
わす。但し、R4 がアルキル基の場合、R3 とR4 の炭
素数の合計は4以上である。R4 で表わされるC1 〜C
5 アルコキシ基としては、R3 で表わされるC1 〜C 5
アルキル基に対応する直鎖又は分岐鎖状のC1 〜C5
ルコキシ基が挙げられる。又、R4 で表わされるC1
5 アルキル基としては、R3 で表わされるアルキルと
同様のものが挙げられる。
The gist of the present invention is based on the above-mentioned one.
It exists in the monoazo dye represented by the general formula [I]. Below, the book
The invention will be described in detail. In the general formula [I], R1Is
R is a hydrogen atom, a methyl group or a chlorine atom.2Is a hydrogen atom
Or represents a methyl group. R3C represented by1~ CFive
Examples of the alkyl group include a methyl group, an ethyl group, and n-propyl group.
Group, i-propyl group, n-butyl group, sec-butyl
Group, linear or branched C such as n-pentyl group1~
CFiveAn alkyl group is mentioned. Also, RFourIs phenyl
Group, benzyl group, phenoxy group, C 1~ CFiveAlkoxy
Base, C1~ CFiveRepresents an alkyl or benzyloxy group
Forget However, RFourWhen is an alkyl group, R3And RFourCharcoal
The sum of prime numbers is 4 or more. RFourC represented by1~ C
FiveAs an alkoxy group, R3C represented by1~ C Five
Linear or branched C corresponding to an alkyl group1~ CFiveA
Examples include a lucoxy group. Also, RFourC represented by1~
CFiveAs an alkyl group, R3And an alkyl represented by
The same thing is mentioned.

【0005】本発明染料の構造的特徴は、特にR4 とし
てフェニル基、ベンジル基、フェノキシ基、アルコキシ
基など比較的分子量の大きい置換基を用いるか、又はR
4 としてC1 〜C5 のアルキル基を用いる場合はR3
4 の合わせた分子量が比較的大きくなるように、R3
とR4 の炭素数の合計を4以上とする点にある。
The structural characteristic of the dye of the present invention is that R 4 is a substituent having a relatively large molecular weight such as a phenyl group, a benzyl group, a phenoxy group, an alkoxy group, or R 4.
When using an alkyl group of C 1 -C 5 as 4 as the molecular weight combined of R 3 and R 4 is relatively large, R 3
And the total carbon number of R 4 is 4 or more.

【0006】前記一般式〔I〕で示される本発明の染料
の中でも、次の(1)又は(2)の染料が有利である。 (1)R1 が水素原子、R2 がメチル基、R3及びR4
が独立にC1 〜C5 のアルキル基であり、R3 とR4
炭素数の合計が5以上の染料 (2)R1 がメチル基又は塩素原子、R2 が水素原子又
はメチル基、R3 及びR4 がエチル基である染料 特に、前記一般式〔I〕に於て、R1 が塩素原子、R2
が水素原子又はメチル基、R3 及びR4 がエチル基であ
る染料が好ましい。前記一般式〔I〕で示されるモノア
ゾ染料は、例えば、下記一般式〔II〕
Among the dyes of the present invention represented by the above general formula [I], the dyes of the following (1) or (2) are advantageous. (1) R 1 is a hydrogen atom, R 2 is a methyl group, R 3 and R 4
There is an alkyl group of C 1 -C 5 independently, R 3 and total 5 or more dyes (2) of the number of carbon atoms of R 4 R 1 is a methyl group or a chlorine atom, R 2 is a hydrogen atom or a methyl group, Dyes in which R 3 and R 4 are ethyl groups, particularly in the above formula [I], R 1 is a chlorine atom, R 2
Is preferably a hydrogen atom or a methyl group, and R 3 and R 4 are ethyl groups. The monoazo dye represented by the general formula [I] is, for example, the following general formula [II]

【0007】[0007]

【化2】 [Chemical 2]

【0008】(式中、R1 は前記定義に同じ。)で示さ
れるアミン類を常法によってジアゾ化し、次いで下記一
般式〔III 〕
The amines represented by the formula (wherein R 1 is as defined above) are diazotized by a conventional method, and then the following general formula [III]

【0009】[0009]

【化3】 [Chemical 3]

【0010】(式中、R2 、R3 及びR4 は夫々前記定
義に同じ。)で示されるアニリン類とカップリングする
ことにより製造することができる。本発明のモノアゾ染
料により染色し得る繊維類としては、ポリエチレンテレ
フタレート、テレフタル酸と1,4−ビス−(ヒドロキ
シメチル)シクロヘキサンとの重縮合物などよりなるポ
リエステル繊維、あるいは木綿、絹、羊毛などの天然繊
維と上記ポリエステル繊維との混紡品、混織品(布、織
編物等)が挙げられる。
It can be produced by coupling with an aniline represented by the formula (wherein R 2 , R 3 and R 4 are the same as defined above). Fibers that can be dyed with the monoazo dye of the present invention include polyethylene terephthalate, polyester fiber composed of a polycondensate of terephthalic acid and 1,4-bis- (hydroxymethyl) cyclohexane, cotton, silk, wool and the like. Examples include a mixed spun product of a natural fiber and the polyester fiber, and a mixed woven product (cloth, woven / knitted fabric, etc.).

【0011】本発明の染料を用いて染色を実施するにあ
たっては、常法により、分散剤を使用し、前記一般式
〔I〕で示されるモノアゾ染料を水性媒体中に分散させ
て染色浴または捺染糊を調製し、浸染または捺染を行な
えばよい。例えば、浸染を行なう場合には、高温染色
法、キャリヤー染色法、サーモゾル染色法などの通常の
染色処理法を適用することにより、ポリエステル繊維な
いしはその混紡品、混織品に堅牢度のすぐれた染色を施
すことができる。また、場合により、染色浴に酸性物質
を添加しておくことにより、さらに好結果が得られるこ
とがある。
In carrying out dyeing with the dye of the present invention, a monoazo dye represented by the general formula [I] is dispersed in an aqueous medium by a conventional method using a dispersant, and a dye bath or printing is conducted. A paste may be prepared, and dyeing or printing may be performed. For example, in the case of dip dyeing, by applying a normal dyeing treatment method such as a high temperature dyeing method, a carrier dyeing method and a thermosol dyeing method, it is possible to dye polyester fibers or their blended fabrics and blended fabrics with excellent fastness. Can be given. Further, depending on the case, better results may be obtained by adding an acidic substance to the dyeing bath.

【0012】本発明のモノアゾ染料を用いて上記の浸染
または捺染により得られた染布は、染着性、ビルドアッ
プ性及びpH依存性等の染色時の特性に優れ、また、耐
アルカリ汗堅牢度、耐光堅牢度、耐昇華堅牢度、耐洗濯
堅牢度、耐汗堅牢度及び耐水堅牢度等の諸堅牢度に優れ
たものである。更に、この染布に後加工を施した場合で
も、本発明では湿潤堅牢度が大幅に低下すると言うこと
はない。なお、本発明のモノアゾ染料は同系統の染料あ
るいは他系統の染料と併用してもよい。
The dyed cloth obtained by the above-mentioned dip dyeing or printing using the monoazo dye of the present invention has excellent dyeing properties such as dyeing property, build-up property and pH dependence, and is resistant to alkali sweat. , Fastness to light, fastness to sublimation, fastness to washing, fastness to sweat, fastness to water, and other fastnesses to water. Further, even when the dyed cloth is post-processed, the wet fastness is not significantly lowered in the present invention. The monoazo dye of the present invention may be used in combination with a dye of the same system or a dye of another system.

【0013】[0013]

【実施例】次に、本発明を実施例により更に具体的に説
明するが、本発明は、その要旨を越えない限り以下の実
施例に限定されるものではない。 実施例1 前記一般式〔I〕に於てR1 及びR2 が水素原子、R3
がエチル基、R4 がフェニル基である本発明のモノアゾ
染料0.5gをナフタレンスルホン酸−ホルムアルデヒ
ド縮合物0.25gおよび高級アルコール硫酸エステル
0.25gを含む水2リットルに分散させて染色浴を調
製した。この染色浴にポリエステル繊維100gを浸漬
し、130℃で60分間染色した後、ソーピング、水洗
および乾燥を行なったところ、鮮明な青色の染布が得ら
れた。なお、上記染料の染色時のpH依存性は100、
アルカリ汗堅牢度は4〜5級と優れたものであった。
EXAMPLES Next, the present invention will be described more specifically by way of examples, but the present invention is not limited to the following examples unless it exceeds the gist. Example 1 In the above general formula [I], R 1 and R 2 are hydrogen atoms, and R 3 is
0.5 g of the monoazo dye of the present invention in which is an ethyl group and R 4 is a phenyl group is dispersed in 2 liters of water containing 0.25 g of a naphthalenesulfonic acid-formaldehyde condensate and 0.25 g of a higher alcohol sulfate ester to give a dyeing bath. Prepared. After immersing 100 g of polyester fiber in this dyeing bath and dyeing at 130 ° C. for 60 minutes, soaping, washing with water and drying were carried out, and a clear blue dyed fabric was obtained. The pH dependency of the above dye during dyeing is 100,
The alkaline sweat fastness was excellent at 4 to 5 grade.

【0014】尚、pH依存性は上記染色法に於てpH
5.0で染色した場合の染着量に対するpH9.5で染
色した場合の染着量を百分率で表わしたもので100が
最も良い。又、アルカリ汗堅牢度はJIS0848A法
でのナイロン白布の汚染度を判定した。尚、本実施例で
使用した染料は以下のようにして製造した。
Incidentally, the pH dependence is the pH in the above dyeing method.
100 is the best as a percentage of the dyed amount when dyed at pH 9.5 with respect to the dyed amount when dyed at 5.0. The alkaline sweat fastness was determined by the degree of stain of the nylon white cloth according to JIS0848A method. The dyes used in this example were manufactured as follows.

【0015】2−アミノ−3−シアノ−5−ニトロチオ
フェン16.9gを98%硫酸33gと氷酢酸33gと
の混合物に溶解させ、次いで43%ニトロシル硫酸33
gを5℃で加えた後、2時間撹拌し、ジアゾ液を得た。
尚、2−アミノ−3−シアノ−5−ニトロチオフェンは
特公昭57−47214号公報記載の方法に従って合成
した。次いで、N−エチル−N−フェニルカルボニルオ
キシエチルアニリン34.3gをメタノール500ml
中に溶解した後、上記ジアゾ液を10℃以下で滴下し、
次いで酢酸ソーダでpH5まで中和した後濾別、水で洗
浄した後乾燥し、目的染料を得た。該染料の最大吸収波
長(λmax:アセトン中)は、596nmであった。
16.9 g of 2-amino-3-cyano-5-nitrothiophene are dissolved in a mixture of 33 g of 98% sulfuric acid and 33 g of glacial acetic acid, then 33% of 43% nitrosyl sulfuric acid.
After adding g at 5 ° C, the mixture was stirred for 2 hours to obtain a diazo liquid.
Incidentally, 2-amino-3-cyano-5-nitrothiophene was synthesized according to the method described in JP-B-57-47214. Then, 34.3 g of N-ethyl-N-phenylcarbonyloxyethylaniline was added to 500 ml of methanol.
After being dissolved in the solution, the diazo solution is added dropwise at 10 ° C or lower,
Then, the mixture was neutralized to pH 5 with sodium acetate, filtered, washed with water and dried to obtain the target dye. The maximum absorption wavelength (λmax: in acetone) of the dye was 596 nm.

【0016】比較例1 前記一般式〔I〕と同一の基本骨格を有し、但し、R1
及びR2 が水素原子、R3 がエチル基、R4 がメチル基
である化合物(特公昭57−47214号公報、実施例
94の化合物に相当)を実施例1に準じて合成し、実施
例1と同様にしてポリエステル繊維を染色し、評価した
ところ、pH依存性は60と著しく劣り、アルカリ汗堅
牢度も3級と劣るものであった。
Comparative Example 1 It has the same basic skeleton as the above-mentioned general formula [I], except that R 1
And a compound in which R 2 is a hydrogen atom, R 3 is an ethyl group, and R 4 is a methyl group (corresponding to the compound of JP-B-57-47214, Example 94) were synthesized according to Example 1, and When the polyester fiber was dyed and evaluated in the same manner as in No. 1, the pH dependency was remarkably inferior to 60, and the alkali sweat fastness was also inferior to Class 3.

【0017】実施例2〜31 実施例1に準じて表−1に記載の各染料を合成し、実施
例1と同様にしてポリエステル繊維を染色し、pH依存
性及びアルカリ汗堅牢度を調べた。結果を表−1に示
す。
Examples 2 to 31 The dyes shown in Table 1 were synthesized according to Example 1, and the polyester fiber was dyed in the same manner as in Example 1 to examine pH dependency and alkali sweat fastness. .. The results are shown in Table-1.

【0018】[0018]

【表1】 [Table 1]

【0019】[0019]

【表2】 [Table 2]

【0020】[0020]

【発明の効果】本発明化合物は、例えば、特公昭57−
47214号公報により公知の化合物と極めて構造的に
近似しているにもかかわらず、カップリング成分のアミ
ノ基の一方の置換基の末端が異なることにより公知化合
物に比較して、特にpH依存性及びアルカリ汗堅牢度が
良好で、ポリエステル繊維用染料として極めて有用であ
る。
INDUSTRIAL APPLICABILITY The compound of the present invention is, for example, Japanese Patent Publication No. 57-
Despite being extremely structurally similar to the known compound according to Japanese Patent No. 47214, in comparison with the known compound due to the difference in the terminal of one of the substituents of the amino group of the coupling component, especially the pH dependence and It has good alkali sweat fastness and is extremely useful as a dye for polyester fibers.

【手続補正書】[Procedure amendment]

【提出日】平成4年6月18日[Submission date] June 18, 1992

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】発明の詳細な説明[Name of item to be amended] Detailed explanation of the invention

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

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

【0001】[0001]

【産業上の利用分野】本発明は特に、pH依存性および
アルカリ汗堅牢度に優れた水不溶性の青色系モノアゾ分
散染料に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-insoluble blue monoazo disperse dye excellent in pH dependency and fastness to alkaline sweat.

【0002】[0002]

【従来の技術】近年、ポリエステル繊維は繊維の風合を
良くするためにアルカリ減量加工が施されることが多く
なっている。この場合、繊維中にアルカリが残存するこ
とにより、染色時のpHが高くなるため、従来の染料を
用いて染色すると染色時の再現性が低下するという問題
が生じている。例えば、特公昭57−47214号公報
には前記一般式〔I〕で示されるモノアゾ染料と同一の
基本骨格を有するが置換基が異なる染料、即ち、R1
びR2 が水素原子、R3 がエチル基、R4 がメチル基で
ある染料が記載されているが、該染料はpH依存性が著
しく劣り、アルカリ減量加工が施されたポリエステル繊
維の染色には適さない、又、該染料は、アルカリ汗堅牢
度の点でも劣るものである。
2. Description of the Related Art In recent years, polyester fibers are often subjected to alkali reduction processing in order to improve the texture of the fibers. In this case, since the alkali remains in the fiber, the pH at the time of dyeing becomes high, so that there is a problem that the reproducibility at the time of dyeing is lowered when dyeing with a conventional dye. For example, JP-B-57-47214 discloses a dye having the same basic skeleton as the monoazo dye represented by the general formula [I] but different substituents, that is, R 1 and R 2 are hydrogen atoms and R 3 is Although a dye having an ethyl group and R 4 as a methyl group is described, the dye has a remarkably poor pH dependency and is not suitable for dyeing a polyester fiber subjected to an alkali weight reduction process. It is also inferior in the fastness to alkaline sweat.

【0003】[0003]

【発明が解決しようとする課題】本発明は、良好なアル
カリ耐性を有し、pH依存性に優れ、しかも優れたアル
カリ汗堅牢度および耐光堅牢度を有する青色分散染料を
提供することを目的とするものである。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a blue disperse dye having good alkali resistance, excellent pH dependency, and excellent alkali sweat fastness and light fastness. To do.

【0004】[0004]

【課題を解決するための手段】本発明の要旨は、前記一
般式〔I〕で示されるモノアゾ染料に存する。以下、本
発明を詳細に説明する。前記一般式〔I〕に於てR1
水素原子、メチル基または塩素原子を、R2 は水素原子
またはメチル基を表わす。R3 で表わされるC1 〜C5
アルキル基としては、メチル基、エチル基、n−プロピ
ル基、i−プロピル基、n−ブチル基、sec−ブチル
基、n−ペンチル基等の直鎖状または分岐鎖状のC1
5 アルキル基があげられる。又、R4 は、フェニル
基、ベンジル基、フェノキシ基、C 1 〜C5 アルコキシ
基、C1 〜C5 アルキル基またはベンジルオキシ基を表
わす。但し、R4 がアルキル基の場合、R3 とR4 の炭
素数の合計は4以上である。R4 で表わされるC1 〜C
5 アルコキシ基としては、R3 で表わされるC1 〜C 5
アルキル基に対応する直鎖又は分岐鎖状のC1 〜C5
ルコキシ基が挙げられる。又、R4 で表わされるC1
5 アルキル基としては、R3 で表わされるアルキルと
同様のものが挙げられる。
The gist of the present invention is based on the above-mentioned one.
It exists in the monoazo dye represented by the general formula [I]. Below, the book
The invention will be described in detail. In the general formula [I], R1Is
R is a hydrogen atom, a methyl group or a chlorine atom.2Is a hydrogen atom
Or represents a methyl group. R3C represented by1~ CFive
Examples of the alkyl group include a methyl group, an ethyl group, and n-propyl group.
Group, i-propyl group, n-butyl group, sec-butyl
Group, linear or branched C such as n-pentyl group1~
CFiveAn alkyl group is mentioned. Also, RFourIs phenyl
Group, benzyl group, phenoxy group, C 1~ CFiveAlkoxy
Base, C1~ CFiveRepresents an alkyl or benzyloxy group
Forget However, RFourWhen is an alkyl group, R3And RFourCharcoal
The sum of prime numbers is 4 or more. RFourC represented by1~ C
FiveAs an alkoxy group, R3C represented by1~ C Five
Linear or branched C corresponding to an alkyl group1~ CFiveA
Examples include a lucoxy group. Also, RFourC represented by1~
CFiveAs an alkyl group, R3And an alkyl represented by
The same thing is mentioned.

【0005】本発明染料の構造的特徴は、特にR4 とし
てフェニル基、ベンジル基、フェノキシ基、アルコキシ
基など比較的分子量の大きい置換基を用いるか、又はR
4 としてC1 〜C5 のアルキル基を用いる場合はR3
4 の合わせた分子量が比較的大きくなるように、R3
とR4 の炭素数の合計を4以上とする点にある。
The structural characteristic of the dye of the present invention is that R 4 is a substituent having a relatively large molecular weight such as a phenyl group, a benzyl group, a phenoxy group, an alkoxy group, or R 4.
When using an alkyl group of C 1 -C 5 as 4 as the molecular weight combined of R 3 and R 4 is relatively large, R 3
And the total carbon number of R 4 is 4 or more.

【0006】前記一般式〔I〕で示される本発明の染料
の中でも、次の(1)又は(2)の染料が有利である。 (1)R1 が水素原子、R2 がメチル基、R3及びR4
が独立にC1 〜C5 のアルキル基であり、R3 とR4
炭素数の合計が5以上の染料 (2)R1 がメチル基又は塩素原子、R2 が水素原子又
はメチル基、R3 及びR4 がエチル基である染料 特に、前記一般式〔I〕に於て、R1 が塩素原子、R2
が水素原子又はメチル基、R3 及びR4 がエチル基であ
る染料が好ましい。前記一般式〔I〕で示されるモノア
ゾ染料は、例えば、下記一般式〔II〕
Among the dyes of the present invention represented by the above general formula [I], the dyes of the following (1) or (2) are advantageous. (1) R 1 is a hydrogen atom, R 2 is a methyl group, R 3 and R 4
There is an alkyl group of C 1 -C 5 independently, R 3 and total 5 or more dyes (2) of the number of carbon atoms of R 4 R 1 is a methyl group or a chlorine atom, R 2 is a hydrogen atom or a methyl group, Dyes in which R 3 and R 4 are ethyl groups, particularly in the above formula [I], R 1 is a chlorine atom, R 2
Is preferably a hydrogen atom or a methyl group, and R 3 and R 4 are ethyl groups. The monoazo dye represented by the general formula [I] is, for example, the following general formula [II]

【0007】[0007]

【化2】 [Chemical 2]

【0008】(式中、R1 は前記定義に同じ。)で示さ
れるアミン類を常法によってジアゾ化し、次いで下記一
般式〔III 〕
The amines represented by the formula (wherein R 1 is as defined above) are diazotized by a conventional method, and then the following general formula [III]

【0009】[0009]

【化3】 [Chemical 3]

【0010】(式中、R2 、R3 及びR4 は夫々前記定
義に同じ。)で示されるアニリン類とカップリングする
ことにより製造することができる。本発明のモノアゾ染
料により染色し得る繊維類としては、ポリエチレンテレ
フタレート、テレフタル酸と1,4−ビス−(ヒドロキ
シメチル)シクロヘキサンとの重縮合物などよりなるポ
リエステル繊維、あるいは木綿、絹、羊毛などの天然繊
維と上記ポリエステル繊維との混紡品、混織品(布、織
編物等)が挙げられる。
It can be produced by coupling with an aniline represented by the formula (wherein R 2 , R 3 and R 4 are the same as defined above). Fibers that can be dyed with the monoazo dye of the present invention include polyethylene terephthalate, polyester fiber composed of a polycondensate of terephthalic acid and 1,4-bis- (hydroxymethyl) cyclohexane, cotton, silk, wool and the like. Examples include a mixed spun product of a natural fiber and the polyester fiber, and a mixed woven product (cloth, woven / knitted fabric, etc.).

【0011】本発明の染料を用いて染色を実施するにあ
たっては、常法により、分散剤を使用し、前記一般式
〔I〕で示されるモノアゾ染料を水性媒体中に分散させ
て染色浴または捺染糊を調製し、浸染または捺染を行な
えばよい。例えば、浸染を行なう場合には、高温染色
法、キャリヤー染色法、サーモゾル染色法などの通常の
染色処理法を適用することにより、ポリエステル繊維な
いしはその混紡品、混織品に堅牢度のすぐれた染色を施
すことができる。また、場合により、染色浴に酸性物質
を添加しておくことにより、さらに好結果が得られるこ
とがある。
In carrying out dyeing with the dye of the present invention, a monoazo dye represented by the general formula [I] is dispersed in an aqueous medium by a conventional method using a dispersant, and a dye bath or printing is conducted. A paste may be prepared, and dyeing or printing may be performed. For example, in the case of dip dyeing, by applying a normal dyeing treatment method such as a high temperature dyeing method, a carrier dyeing method and a thermosol dyeing method, it is possible to dye polyester fibers or their blended fabrics and blended fabrics with excellent fastness. Can be given. Further, depending on the case, better results may be obtained by adding an acidic substance to the dyeing bath.

【0012】本発明のモノアゾ染料を用いて上記の浸染
または捺染により得られた染布は、染着性、ビルドアッ
プ性及びpH依存性等の染色時の特性に優れ、また、耐
アルカリ汗堅牢度、耐光堅牢度、耐昇華堅牢度、耐洗濯
堅牢度、耐汗堅牢度及び耐水堅牢度等の諸堅牢度に優れ
たものである。更に、この染布に後加工を施した場合で
も、本発明では湿潤堅牢度が大幅に低下すると言うこと
はない。なお、本発明のモノアゾ染料は同系統の染料あ
るいは他系統の染料と併用してもよい。
The dyed cloth obtained by the above-mentioned dip dyeing or printing using the monoazo dye of the present invention has excellent dyeing properties such as dyeing property, build-up property and pH dependence, and is resistant to alkali sweat. , Fastness to light, fastness to sublimation, fastness to washing, fastness to sweat, fastness to water, and other fastnesses to water. Further, even when the dyed cloth is post-processed, the wet fastness is not significantly lowered in the present invention. The monoazo dye of the present invention may be used in combination with a dye of the same system or a dye of another system.

【0013】[0013]

【実施例】次に、本発明を実施例により更に具体的に説
明するが、本発明は、その要旨を越えない限り以下の実
施例に限定されるものではない。 実施例1 前記一般式〔I〕に於てR1 及びR2 が水素原子、R3
がエチル基、R4 がフェニル基である本発明のモノアゾ
染料0.5gをナフタレンスルホン酸−ホルムアルデヒ
ド縮合物0.25gおよび高級アルコール硫酸エステル
0.25gを含む水2リットルに分散させて染色浴を調
製した。この染色浴にポリエステル繊維100gを浸漬
し、130℃で60分間染色した後、ソーピング、水洗
および乾燥を行なったところ、鮮明な青色の染布が得ら
れた。なお、上記染料の染色時のpH依存性は100、
アルカリ汗堅牢度は4〜5級と優れたものであった。
EXAMPLES Next, the present invention will be described more specifically by way of examples, but the present invention is not limited to the following examples unless it exceeds the gist. Example 1 In the above general formula [I], R 1 and R 2 are hydrogen atoms, and R 3 is
0.5 g of the monoazo dye of the present invention in which is an ethyl group and R 4 is a phenyl group is dispersed in 2 liters of water containing 0.25 g of a naphthalenesulfonic acid-formaldehyde condensate and 0.25 g of a higher alcohol sulfate ester to give a dyeing bath. Prepared. After immersing 100 g of polyester fiber in this dyeing bath and dyeing at 130 ° C. for 60 minutes, soaping, washing with water and drying were carried out, and a clear blue dyed fabric was obtained. The pH dependency of the above dye during dyeing is 100,
The alkaline sweat fastness was excellent at 4 to 5 grade.

【0014】尚、pH依存性は上記染色法に於てpH
5.0で染色した場合の染着量に対するpH9.5で染
色した場合の染着量を百分率で表わしたもので100が
最も良い。又、アルカリ汗堅牢度はJIS0848A法
でのナイロン白布の汚染度を判定した。尚、本実施例で
使用した染料は以下のようにして製造した。
Incidentally, the pH dependence is the pH in the above dyeing method.
100 is the best as a percentage of the dyed amount when dyed at pH 9.5 with respect to the dyed amount when dyed at 5.0. The alkaline sweat fastness was determined by the degree of stain of the nylon white cloth according to JIS0848A method. The dyes used in this example were manufactured as follows.

【0015】2−アミノ−3−シアノ−5−ニトロチオ
フェン16.9gを98%硫酸33gと氷酢酸33gと
の混合物に溶解させ、次いで43%ニトロシル硫酸33
gを5℃で加えた後、2時間撹拌し、ジアゾ液を得た。
尚、2−アミノ−3−シアノ−5−ニトロチオフェンは
特公昭57−47214号公報記載の方法に従って合成
した。次いで、N−エチル−N−フェニルカルボニルオ
キシエチルアニリン34.3gをメタノール500ml
中に溶解した後、上記ジアゾ液を10℃以下で滴下し、
次いで酢酸ソーダでpH5まで中和した後濾別、水で洗
浄した後乾燥し、目的染料を得た。該染料の最大吸収波
長(λmax:アセトン中)は、596nmであった。
16.9 g of 2-amino-3-cyano-5-nitrothiophene are dissolved in a mixture of 33 g of 98% sulfuric acid and 33 g of glacial acetic acid, then 33% of 43% nitrosyl sulfuric acid.
After adding g at 5 ° C, the mixture was stirred for 2 hours to obtain a diazo liquid.
Incidentally, 2-amino-3-cyano-5-nitrothiophene was synthesized according to the method described in JP-B-57-47214. Then, 34.3 g of N-ethyl-N-phenylcarbonyloxyethylaniline was added to 500 ml of methanol.
After being dissolved in the solution, the diazo solution is added dropwise at 10 ° C or lower,
Then, the mixture was neutralized to pH 5 with sodium acetate, filtered, washed with water and dried to obtain the target dye. The maximum absorption wavelength (λmax: in acetone) of the dye was 596 nm.

【0016】比較例1 前記一般式〔I〕と同一の基本骨格を有し、但し、R1
及びR2 が水素原子、R3 がエチル基、R4 がメチル基
である化合物(特公昭57−47214号公報、実施例
94の化合物に相当)を実施例1に準じて合成し、実施
例1と同様にしてポリエステル繊維を染色し、評価した
ところ、pH依存性は60と著しく劣り、アルカリ汗堅
牢度も3級と劣るものであった。
Comparative Example 1 It has the same basic skeleton as the above-mentioned general formula [I], except that R 1
And a compound in which R 2 is a hydrogen atom, R 3 is an ethyl group, and R 4 is a methyl group (corresponding to the compound of JP-B-57-47214, Example 94) were synthesized according to Example 1, and When the polyester fiber was dyed and evaluated in the same manner as in No. 1, the pH dependency was remarkably inferior to 60, and the alkali sweat fastness was also inferior to Class 3.

【0017】実施例2〜31 実施例1に準じて表−1に記載の各染料を合成し、実施
例1と同様にしてポリエステル繊維を染色し、pH依存
性及びアルカリ汗堅牢度を調べた。結果を表−1に示
す。
Examples 2 to 31 The dyes shown in Table 1 were synthesized according to Example 1, and the polyester fiber was dyed in the same manner as in Example 1 to examine pH dependency and alkali sweat fastness. .. The results are shown in Table-1.

【0018】[0018]

【表1】 [Table 1]

【0019】[0019]

【表2】 [Table 2]

【0020】[0020]

【表3】 [Table 3]

【0021】[0021]

【発明の効果】本発明化合物は、例えば、特公昭57−
47214号公報により公知の化合物と極めて構造的に
近似しているにもかかわらず、カップリング成分のアミ
ノ基の一方の置換基の末端が異なることにより公知化合
物に比較して、特にpH依存性及びアルカリ汗堅牢度が
良好で、ポリエステル繊維用染料として極めて有用であ
る。
INDUSTRIAL APPLICABILITY The compound of the present invention is, for example, Japanese Patent Publication No. 57-
Despite being extremely structurally similar to the known compound according to Japanese Patent No. 47214, in comparison with the known compound due to the difference in the terminal of one of the substituents of the amino group of the coupling component, especially the pH dependence and It has good alkali sweat fastness and is extremely useful as a dye for polyester fibers.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 下記一般式〔I〕 【化1】 (式中、R1 は水素原子、メチル基または塩素原子を表
わし、R2 は水素原子またはメチル基を表わし、R3
1〜C5 アルキル基を表わし、R4 はフェニル基、ベ
ンジル基、フェノキシ基、C1 〜C5 アルコキシ基、C
1 〜C5 アルキル基またはベンジルオキシ基を表わす。
但し、R4 がアルキル基の場合は、R3 とR4 との炭素
数の合計は4以上である。)で示されるモノアゾ染料。
1. The following general formula [I]: (In the formula, R 1 represents a hydrogen atom, a methyl group or a chlorine atom, R 2 represents a hydrogen atom or a methyl group, R 3 represents a C 1 -C 5 alkyl group, R 4 represents a phenyl group, a benzyl group. , Phenoxy group, C 1 -C 5 alkoxy group, C
Represent 1 -C 5 alkyl group or a benzyl group.
However, when R 4 is an alkyl group, the total number of carbon atoms of R 3 and R 4 is 4 or more. ) Monoazo dyes represented by.
JP09273092A 1991-06-11 1992-04-13 Monoazo dye Expired - Fee Related JP3237775B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09273092A JP3237775B2 (en) 1991-06-11 1992-04-13 Monoazo dye

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3-139267 1991-06-11
JP13926791 1991-06-11
JP09273092A JP3237775B2 (en) 1991-06-11 1992-04-13 Monoazo dye

Publications (2)

Publication Number Publication Date
JPH05105817A true JPH05105817A (en) 1993-04-27
JP3237775B2 JP3237775B2 (en) 2001-12-10

Family

ID=26434106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09273092A Expired - Fee Related JP3237775B2 (en) 1991-06-11 1992-04-13 Monoazo dye

Country Status (1)

Country Link
JP (1) JP3237775B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760196A (en) * 1995-02-20 1998-06-02 Sumitomo Chemical Company, Limited Monoazo blue disperse dye compounds and methods for dyeing or printing hydrophobic fiber materials using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760196A (en) * 1995-02-20 1998-06-02 Sumitomo Chemical Company, Limited Monoazo blue disperse dye compounds and methods for dyeing or printing hydrophobic fiber materials using the same

Also Published As

Publication number Publication date
JP3237775B2 (en) 2001-12-10

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