JP3579772B2 - Black dyeing method for synthetic polyamide fiber - Google Patents

Description

で表されるジスアゾ化合物を用い、水溶性コバルト化合物又は水溶性ニッケル化合物を媒染剤として染色することを特徴とする合成ポリアミド繊維の黒染方法に係るものである。以下、実施例により具体的に本発明を説明する。
【０００５】
【実施例】
実施例１
未処理のナイロン製のパンティストッキングを、本発明のジスアゾ化合物からなる染料４．０％ｏ．ｗ．ｆ、９０％酢酸１．８％ｏ．ｗ．ｆ、ニューボンＴＳ−４００（日華化学製均染剤）２．０％ｏ．ｗ．ｆ、に調整した染浴に浴比１：２５で投入。染液を４０℃から９５℃まで １℃／分で昇温し、９５℃で、３０分保持する。次に、８０℃まで降温し、酢酸コバルトを１．０％ｏ．ｗ．ｆ投入する。９５℃まで昇温し、３０分保持した後ソーピング、水洗を行う（使用染色試験機 しんとう式染色機（保土谷化学製Ｈ０−１２Ｂ））。
得られた染色物の色相を表１に、堅牢度を表２に示す。
【０００６】
実施例２
未処理のナイロンジャージを、本発明のジスアゾ化合物からなる染料４．０％ｏ．ｗ．ｆ、９０％酢酸１．８％ｏ．ｗ．ｆ、ユニオナールＬ（センカ均染剤）３．０％ｏ．ｗ．ｆに調整した染浴に浴比１：３０で投入。染液を４０℃から、９５℃まで１℃／分で昇温し、９５℃で３０分保持する。次に、８０℃まで降温し、酢酸コバルト１．４％ｏ．ｗ．ｆ投入し、再度、９５℃まで昇温し、３０分保持した後ソーピング、水洗を行う（使用染色試験機 カラーペット染色機（日本染色機械１３ＣＰＭ−Ｃ））。得られた染色物の色相を表１に、堅牢度を表２に示す。尚、表１の色素測定にはａｃｓ社製ＣＳ−５クローマ センサー（ｃｈｒｏｍａ Ｓｅｎｓｏｒ）を用いた。また、摩擦堅牢度試験は、ＪＩＳ Ｌ ０８２３，洗濯堅牢度試験はＪＩＳＬ ０８４４，耐光堅牢度試験はＪＩＳ Ｌ ０８４２によりそれぞれおこなった。
【０００７】
実施例３
実施例１で用いた酢酸コバルトのかわりに酢酸ニッケルを用い、他は同様にしてナイロン製のパンティーストッキングを黒色に染色した。
得られた染色物は、実施例１の場合と同様に深みのある黒色であった。また、堅牢度も実施例１の場合とほぼ同様の良好な結果を示した。
【０００８】
【表１】

【０００９】
【表２】

【００１０】
【発明の効果】
本発明の黒染方法によれば、合成ポリアミド繊維を深みのある黒色に染色することが可能であり、しかも染色物は良好な堅牢性を示す。[0001]
[Industrial applications]
The present invention relates to a method for dyeing a synthetic polyamide fiber in black.
[0002]
[Prior Art and Problems to be Solved by the Invention]
Conventionally, synthetic polyamide fibers are generally dyed black with a gold-containing dye. However, it is difficult to dye a synthetic polyamide fiber with a deep black color by dyeing with a gold-containing dye, and the fastness of the dyed product cannot be said to be sufficient.
The present invention has been achieved as a result of research on an advantageous dye or dyeing method which can replace the conventional black dyeing method using a gold-containing dye.
[0003]
[Means and Actions for Solving the Problems]
That is, the present invention provides the following formula (1) in the form of a free acid:
[0004]
Embedded image

Using represented disazo compound in, it relates to a black oxide process of synthesizing polyamides fibers you characterized by dyeing a water-soluble cobalt compound or a water-soluble nickel compound as a mordant. Hereinafter, the present invention will be specifically described with reference to examples.
[0005]
【Example】
Example 1
Untreated nylon pantyhose was treated with 4.0% o.o. of the dye comprising the disazo compound of the present invention. w. f, 90% acetic acid 1.8% o. w. f, 2.0% o.v. Newbon TS-400 (Nichika Chemical leveling agent). w. (f) The dye was adjusted into a dye bath at a bath ratio of 1:25. The temperature of the dyeing liquor is raised from 40 ° C. to 95 ° C. at a rate of 1 ° C./min and kept at 95 ° C. for 30 minutes. Next, the temperature was lowered to 80 ° C., and cobalt acetate was 1.0% o. w. f. The temperature is raised to 95 ° C., and after holding for 30 minutes, soaping and water washing are performed (a dyeing tester used, Shinto type dyeing machine (H0-12B manufactured by Hodogaya Chemical)).
Table 1 shows the hue of the obtained dyed product, and Table 2 shows the fastness.
[0006]
Example 2
The untreated nylon jersey was treated with 4.0% o. w. f, 90% acetic acid 1.8% o. w. f, Unional L (Senka leveling agent) 3.0% o. w. The solution was added to the dyeing bath adjusted to f at a bath ratio of 1:30. The dyeing liquor is heated from 40 ° C. to 95 ° C. at a rate of 1 ° C./min and kept at 95 ° C. for 30 minutes. Next, the temperature was lowered to 80 ° C., and cobalt acetate 1.4% o. w. f, and the temperature is raised again to 95 ° C., held for 30 minutes, and then soaped and washed with water (Dyeing tester used, color pet dyeing machine (Nihon Dyeing Machinery 13CPM-C)). Table 1 shows the hue of the obtained dyed product, and Table 2 shows the fastness. Note that the dyes shown in Table 1 were measured using a CS-5 chroma sensor manufactured by acs. Further, the rub fastness test was carried out according to JIS L 0823, the washing fastness test was carried out according to JIS L 0844, and the light fastness test was carried out according to JIS L 0842.
[0007]
Example 3
Nylon pantyhose was dyed black in the same manner except that nickel acetate was used instead of cobalt acetate used in Example 1.
The obtained dyed product was deep black as in the case of Example 1. In addition, the fastness showed almost the same good results as in Example 1.
[0008]
[Table 1]

[0009]
[Table 2]

[0010]
【The invention's effect】
According to the black dyeing method of the present invention, it is possible to dye a synthetic polyamide fiber in a deep black color, and the dyed material shows good fastness.

Claims (1)

The following formula (1) in the form of free acid

A black dyeing method for a synthetic polyamide fiber, characterized by dyeing a water-soluble cobalt compound or a water-soluble nickel compound as a mordant using a disazo compound represented by the following formula: