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JPH0349939B2 - - Google Patents
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JPH0349939B2 - - Google Patents

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Publication number
JPH0349939B2
JPH0349939B2 JP56094161A JP9416181A JPH0349939B2 JP H0349939 B2 JPH0349939 B2 JP H0349939B2 JP 56094161 A JP56094161 A JP 56094161A JP 9416181 A JP9416181 A JP 9416181A JP H0349939 B2 JPH0349939 B2 JP H0349939B2
Authority
JP
Japan
Prior art keywords
dye
dyeing
polyester fibers
added
water
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.)
Expired - Lifetime
Application number
JP56094161A
Other languages
Japanese (ja)
Other versions
JPS57207649A (en
Inventor
Kyoshi Himeno
Shuichi Maeda
Yutaka Kawai
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical Industries 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 Mitsubishi Chemical Industries Ltd filed Critical Mitsubishi Chemical Industries Ltd
Priority to JP56094161A priority Critical patent/JPS57207649A/en
Publication of JPS57207649A publication Critical patent/JPS57207649A/en
Publication of JPH0349939B2 publication Critical patent/JPH0349939B2/ja
Granted legal-status Critical Current

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  • Coloring (AREA)

Description

【発明の詳細な説明】 本発明はポリエステル繊維を耐光堅牢度、耐昇
華堅牢度、水堅牢度などの諸堅牢度にすぐれた鮮
明な赤味青〜青色に染色し、かつ染色時の温度安
定性およびPH安定性の良好なポリエステル繊維用
ジスアゾ染料に関するものである。 本発明のポリエステル繊維用ジスアゾ染料は、
一般式 〔式中、Xは水素原子またはメチル基を表わし、
Yは水素原子を表わし、Rはプロピル基またはブ
チル基を表わす。〕で示される水不溶性染料であ
る。 前示一般式〔〕で示されるジスアゾ染料はア
ニリンをジアゾ化し下記式〔〕 で示される2−アミノ−3−シアノチオフエンと
カツプリングさせて得られる。下記式〔〕 で示されるモノアゾ化合物をジアゾ化し、下記一
般式〔〕 (式中、X,YおよびRは前記定義に同じ。)で
示されるアニリン類とカツプリングさせることに
よつて製造することができる。 本発明のジスアゾ染料により染色しうる繊維と
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、混織品が挙
げられる。 本発明の染料を用いてポリエステル繊維を染色
するには、前示一般式〔〕で示される染料が水
に不溶ないし難容であるので、常法により、分散
剤としてナフタレンスルホン酸とホルムアルデヒ
ドとの縮合物、高級アルコール硫酸エステル、高
級アルキルベンゼンスルホン酸塩などを使用して
水性媒質中に分散させた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
染の場合、高温染色法、キヤリヤー染色法、サー
モゾル染色法などの通常の染色処理法を適用すれ
ば、ポリエステル繊維ないしは、その混紡品に堅
牢度のすぐれた染色を施すことができる。その
際、場合により、染色浴にギ酸、酢酸、リン酸あ
るいは硫酸アンモニウムなどのような酸性物質を
添加すれば、さらに好結果が得られる。 また、本発明方法に使用される前示一般式
〔〕で示される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く、このうち前示一般
式〔〕で示される染料相互の配合により染色性
の向上等、好結果が得られる場合がある。 次に、本発明を実施例によつて更に具体的に説
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 下記構造式 で示される染料0.5gを、ナフタレンスルホン酸
−ホルムアルデヒド縮合物1gおよび高級アルコ
ール硫酸エステル2gを含む水3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つたところ、鮮
明な赤味青色の染布が得られた。得られた染布の
耐光堅牢度、昇華堅牢度および水堅牢度ならびに
上記染料の染色時の温度安定性、PH安定性は良好
であつた。 本実施例で使用した染料は下記のようにして製
造した。 アニリン9.3gを7%塩酸150ml中に溶解し、こ
の溶液を2℃に冷却し、ついで2N−亜硝酸ソー
ダ50mlを加えた。このとき温度は5℃を超えない
ようにした。得られたアニリンのジアゾニウム塩
溶液を2−アミノ−3−シアノチオフエン12.4g
をメタノール200mlに溶解した溶液中に2℃にて
添加し、同温度で2時間撹拌し、析出したモノア
ゾ化合物を濾取後、水洗して乾燥した。このモノ
アゾ化合物(2−アミノ−3−シアノ−5−フエ
ニルアゾチオフエン)11.4gを酢酸114mlおよび
りん酸114mlの混合物中に加え、ついでこの混合
物中に0〜5℃でニトロシル硫酸(亜硝酸ソーダ
3.5gを97%硫酸20gに溶解して調製)を徐々に
加え、同温度で30分撹拌して、モノアゾ化合物の
ジアゾ液を調製した。 N−ブチル−N−シアノエチルアニリン8.0g
をメタノール200mlに溶解し、氷200gと水100ml
中に添加した。これに前記で調製したジアゾ液を
加え、0〜5℃で2時間撹拌し、析出したジスア
ゾ染料を濾取後、水洗して乾燥した。本品の
λmax(アセトン)は609nmであつた。 実施例 2 実施例1と同様の方法により下記表−1に示し
た染料を用いてポリエステル繊維を染色し、同表
に示す色調の染色物を得た。 【表】
DETAILED DESCRIPTION OF THE INVENTION The present invention dyes polyester fibers in a vivid reddish-blue to blue color that is excellent in various fastnesses such as light fastness, sublimation fastness, and water fastness, and is temperature stable during dyeing. This invention relates to a disazo dye for polyester fibers that has good properties and PH stability. The disazo dye for polyester fibers of the present invention is
general formula [In the formula, X represents a hydrogen atom or a methyl group,
Y represents a hydrogen atom, and R represents a propyl group or a butyl group. ] It is a water-insoluble dye shown by. The disazo dye represented by the general formula [] shown above is obtained by diazotizing aniline to form the following formula [] It is obtained by coupling with 2-amino-3-cyanothiophene shown in The following formula [] The monoazo compound represented by is diazotized to form the following general formula [] It can be produced by coupling with an aniline represented by the formula (wherein, X, Y and R are the same as defined above). Fibers that can be dyed with the disazo dye of the present invention include polyester fibers made of polyethylene terephthalate, polycondensates of terephthalic acid and 1,4-bis-(hydroxymethyl)cyclohexane, and natural fibers such as cotton, silk, and wool. Examples include blended products and blended products of fibers and the above-mentioned polyester fibers. In order to dye polyester fibers using the dye of the present invention, since the dye represented by the general formula [] is insoluble or difficult to dissolve in water, naphthalene sulfonic acid and formaldehyde are used as dispersants in a conventional method. Dyeing or printing may be carried out by preparing a dyeing bath or printing paste in which a condensate, higher alcohol sulfuric ester, higher alkylbenzene sulfonate, etc. are dispersed in an aqueous medium. For example, in the case of dip dyeing, polyester fibers or their blends can be dyed with excellent fastness by applying ordinary dyeing methods such as high temperature dyeing, carrier dyeing, and thermosol dyeing. In this case, even better results can be obtained if an acidic substance such as formic acid, acetic acid, phosphoric acid or ammonium sulfate is added to the dyeing bath. Furthermore, the dye represented by the general formula [] used in the method of the present invention may be used in combination with dyes of the same type or dyes of other systems, and among these, the dyes represented by the general formula [] can be used in combination with each other. Depending on the combination, good results such as improved dyeability may be obtained. Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the following Examples unless the gist thereof is exceeded. Example 1 Structural formula below A dyeing bath was prepared by dispersing 0.5 g of the dye represented by 3 in water 3 containing 1 g of naphthalene sulfonic acid-formaldehyde condensate and 2 g of higher alcohol sulfate. 100 g of polyester fibers were immersed in this dyeing bath and dyed at 130° C. for 60 minutes, followed by soaping, washing and drying, resulting in a dyed fabric with a vivid reddish blue color. The light fastness, sublimation fastness and water fastness of the obtained dyed fabric, as well as the temperature stability and PH stability during dyeing of the above dye, were good. The dye used in this example was produced as follows. 9.3 g of aniline was dissolved in 150 ml of 7% hydrochloric acid, the solution was cooled to 2 DEG C., and then 50 ml of 2N sodium nitrite was added. At this time, the temperature was set not to exceed 5°C. The obtained aniline diazonium salt solution was mixed with 12.4 g of 2-amino-3-cyanothiophene.
was added to a solution of 200 ml of methanol at 2°C, stirred at the same temperature for 2 hours, and the precipitated monoazo compound was collected by filtration, washed with water, and dried. 11.4 g of this monoazo compound (2-amino-3-cyano-5-phenylazothiophene) was added to a mixture of 114 ml of acetic acid and 114 ml of phosphoric acid, and then nitrosyl sulfuric acid (nitrite) was added to the mixture at 0-5°C. soda
(prepared by dissolving 3.5 g in 20 g of 97% sulfuric acid) was gradually added and stirred at the same temperature for 30 minutes to prepare a diazo solution of a monoazo compound. N-Butyl-N-cyanoethylaniline 8.0g
Dissolve in 200ml of methanol, add 200g of ice and 100ml of water.
added inside. The diazo solution prepared above was added to this, and the mixture was stirred at 0 to 5°C for 2 hours. The precipitated disazo dye was collected by filtration, washed with water, and dried. The λmax (acetone) of this product was 609 nm. Example 2 Polyester fibers were dyed using the dyes shown in Table 1 below in the same manner as in Example 1 to obtain dyed products having the colors shown in the table. 【table】

Claims (1)

【特許請求の範囲】 1 一般式 〔式中、Xは水素原子またはメチル基を表わし、
Yは水素原子を表わし、Rはプロピル基またはブ
チル基を表わす。〕で示されるポリエステル繊維
用ジスアゾ染料。
[Claims] 1. General formula [In the formula, X represents a hydrogen atom or a methyl group,
Y represents a hydrogen atom, and R represents a propyl group or a butyl group. ] Disazo dye for polyester fibers.
JP56094161A 1981-06-18 1981-06-18 Disazo dye for polyester fiber Granted JPS57207649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094161A JPS57207649A (en) 1981-06-18 1981-06-18 Disazo dye for polyester fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094161A JPS57207649A (en) 1981-06-18 1981-06-18 Disazo dye for polyester fiber

Publications (2)

Publication Number Publication Date
JPS57207649A JPS57207649A (en) 1982-12-20
JPH0349939B2 true JPH0349939B2 (en) 1991-07-31

Family

ID=14102641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094161A Granted JPS57207649A (en) 1981-06-18 1981-06-18 Disazo dye for polyester fiber

Country Status (1)

Country Link
JP (1) JPS57207649A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145253A (en) * 1983-02-04 1984-08-20 Gosei Senriyou Gijutsu Kenkyu Kumiai Disazo dye for polyester fiber
JPS59145254A (en) * 1983-02-04 1984-08-20 Gosei Senriyou Gijutsu Kenkyu Kumiai Disazo dye for polyester fiber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264495A (en) * 1972-05-15 1981-04-28 Eastman Kodak Company 2-Thienyl azo dyestuff compounds
DE2438496A1 (en) * 1974-08-10 1976-02-26 Bayer Ag DISAZO DYES

Also Published As

Publication number Publication date
JPS57207649A (en) 1982-12-20

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