JP3299020B2 - Red dye composition, dyeing method using the same and dyed product thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dye composition for dyeing polyamide fibers, a method for dyeing polyamide fibers using the same, and a dyed product thereof.

[0002]

2. Description of the Related Art In recent years, with the expansion of the sports clothing market, there is a high demand for polyamide fibers having a wet fastness of dyeings of medium and high concentrations. Conventionally, polyamide fiber is yellow,
When performing dyeing with so-called three primary colors dyes of red and blue colors, it is known that uniform dyeing can be easily obtained using a so-called leveling-type acid dye having good transferability. It has a disadvantage of inferior degree.

In order to solve this drawback, use of fast acid dyes having good wet fastness has been recognized in some cases. However, wet fastness type dyes are poor in transferability and generally inferior in levelness because the amount of dyeing increases in a temperature range of 70 to 90 ° C. For this reason, even if the operation is devised such as slowly raising the temperature, the leveling property cannot be easily obtained. Therefore, it takes a very long time to dye and is not practical. In the case of dyeing using only one type of fast-acting acid dye, the characteristics are grasped and the dyeing conditions (PH, temperature, heating rate, etc.) are adjusted, or the dyeing aid is used. It is possible to obtain uniform dyeings.

[0004] However, it is extremely rare to dye using only a single dye in general, and in order to obtain a dyed product over a wide hue range, several kinds of different color dyes are mixed.
It must be toned and correspond to the desired hue. Nevertheless, in the case of the fast acid dyes, the dyed product of the compound dyeing is poor in uniformity, and the preferred three primary colors of fast acid dyes have not yet been obtained.

[0005] The inventors of the present invention can impart wet fastness and levelness by selecting and blending a single dye from each of the three groups in each of the three primary color systems. The dye composition for three primary colors is obtained, and the dyeing speed of each of the three primary colors is uniformed, so that it is possible to dye in a so-called good compatibility state. A possible method has been proposed (JP-A-2-53972). After that, they further developed this and found a red dye composition satisfying the needs and demands of the industry, and filed a patent application (Japanese Patent Application No. 4-345232).

[0006]

However, in the above-mentioned conventional method, the hue is unclear or the compatibility is insufficient, and the needs and demands of the industry have not been satisfied. The present inventors have conducted intensive studies and found that by using an azo dye having a specific dye structure matrix in combination, the polyamide fiber is finally dyed uniformly, and in a desirable clear red region, good wet fastness is obtained. They have found a dye and a dyeing method that can be imparted, and have found that this is a red dye composition that can also expand the range of hues obtained by combining the three primary colors to a sharper region, and complete the present invention. Reached.

[0007]

The present invention relates to a red dye composition for dyeing polyamide fibers, which comprises (1) CIAcid Red 119, (2) CIAcid Red 299 and
(3) CIAcid Red 6, CIAcid Red 97, CIAcid Red
114, CIAcid Red 257, CIAcid Red 337, CIAci
d It is characterized by mixing at least three kinds of dyes of one or more kinds selected from Orange 19 or CIAcid Violet 90. Here, for example, CIAcid Red 119
The term “commercially available” means a commercially available dye, and usually means a state in which an inorganic salt, a diluent, and the like are contained in addition to the dye cake.

The preferred mixing ratio of these three dyes is
(1) 20 to 60% by weight of CIAcid Red 119 dye, (2)
20-60% by weight of CIAcid Red 299 dye, (3) CI
AcidRed 6, CIAcid Red 97, CIAcid Red 114, C.
I.Acid Red 257, CIAcidRed 337, CIAcid Orange
One or more dyes selected from 19 or CIAcid Violet 90 are in the range of 1 to 30% by weight. Among them, (1) the dye of CIAcid Red 119 is 20 to 60% by weight,
(2) CIAcid Red 299 dye is 20 to 60% by weight, (3)
Red dye compositions in which the CIAcid Red 97 dye is in the range of 1 to 30% by weight are particularly preferably used for the purposes of the present invention.

Hereinafter, the present invention will be described in more detail. Conventionally, various dyes for dyeing polyamide fibers in red have been known and have been awarded, but they are insufficient in hue or fastness, etc., and are particularly preferred in hue (bluish red) and have high fastness in vivid red. Little is known about red dyes that can be dyed and are compatible with other two primary color dyes, i.e., yellow and blue dyes having comparable fastnesses, in dyeing.

It has been found for the first time by the present inventors that the above-mentioned drawbacks can be eliminated at once by using the specific mixed dye of the present invention. Therefore, the red dye composition for dyeing the polyamide fiber of the present invention eliminates the conventional disadvantages even when used alone, and provides a dye having a favorable hue, fastness, and good levelness. be able to.

Another object of the present invention is to provide a method for dyeing a polyamide fiber, characterized in that the polyamide fiber is dyed with a preferable red hue and a clear red color. Still another object of the present invention is to provide a polyamide fiber dyed using the mixed dye composition.

The red dye composition of the present invention is more excellent when it is used as one component of a three primary color dye. That is, the dye composition of the present invention is a dye composition other than the three primary color dyes, specifically as disclosed in Japanese Patent Application Laid-Open No. 2-53972 or Japanese Patent Application No. 4-345232 previously proposed by the present inventors. For example, when used together with a yellow dye composition and a blue color composition as described below and used as a so-called three primary color dye composition, it has a preferable dye compatibility, and the red color among the three primary color dye compositions It can be used as a system dye composition to provide more preferable results.

Here, as the yellow dye composition, dye group (YA); CIAcid Yellow 42, 219 dye group (YB): CIAcid Orange 67, 127 Dye group (YC): CIAcid Orange 95, 127 One or more dyes each selected from
Seed), a yellow dye composition is prepared, and as a blue dye composition, dye group (BA): CIAcid Blue 127, 127: 1 dye group (BB): CIAcid Blue 40, 260 dye group (BC): one or more dyes selected from CIAcid Blue 40 and 264, respectively (at least 3 dyes).
Seed), a blue dye composition prepared by mixing

The red dye composition of the present invention has good compatibility with the yellow dye composition and the blue dye composition in so-called dyeing, and can dye polyamide fibers uniformly red. Accordingly, the present invention includes a compound dye composition for three primary colors, a method for dyeing polyamide fibers using these, and a polyamide fiber dyed using these.

As a method for preparing these dyes, each of the selected dyes is added to a dye bath at the time of dyeing, and the dye is prepared so as to be dyed in a state where the predetermined dye specified in the present invention is mixed in the dye bath. However, when it is complicated, it is preferable to prepare a dye composition in which the selected individual dyes are prepared before adding to the dye bath in advance.

In the three primary color dyeing using the thus obtained yellow, red and blue compound dye compositions,
Even if these are blended at an arbitrary ratio, a unique effect that industrially advantageous dyeing can be realized in a short time without impairing the leveling property is exhibited.

The dye composition of the present invention may contain, in addition to the above-mentioned composition of the dye, usual known diluents and additives, for example, inorganic salts such as sodium chloride and sodium sulfate, dextrin, naphthalenesulfonic acid-formalin condensate and the like. In addition, a dust / scattering inhibitor and the like can be appropriately compounded and used.

The polyamide fiber applied to the present invention is a natural polyamide fiber such as wool, a synthetic polyamide fiber such as nylon, or a fiber blended with natural and synthetic polyamides. Wool, yarn, woven, knitted, carpet, etc. The dye composition according to the present invention is characterized in that the change in the dyeing speed with the change in the dyeing temperature is smaller than that of the conventional fast acid dyes, and that the maximum dyeing speed is small, so that the dyeing composition is excellent in levelness. Have.
In particular, the dye composition of the present invention is excellent in dyeing a synthetic polyamide such as 6-nylon and 66-nylon.

Conventionally, in the case of compound dyeing using a single fast acid dye, a very complicated dyeing operation requiring setting of heating conditions and adjustment of dyeing conditions corresponding to each dyeing speed is required. However, in the dye composition according to the present invention and the compounded dye composition thereof, a dyeing program suitable for the processing form of the polyamide fiber and the type of the dyeing apparatus can be arbitrarily set, that is, the allowable range of the dyeing program. , And a dyed product having a wide, uniform and good wet fastness can be easily obtained with good reproducibility. As a result, the dyeing time which conventionally required a long time can be inevitably shortened, and an industrially advantageous dyeing method can be established.

[0020]

According to the present invention, polyamide fibers can be dyed in a preferable red color with good levelness by using a specific compounding dye. Further, by using the red dye composition of the present invention in combination with other yellow and blue dyes for three primary colors, the dyeing compatibility is extremely good at any mixing ratio.

[0021]

Next, the present invention will be described by way of examples. In the examples, parts and% mean parts by weight and% by weight, respectively.

Example 1 As a fast acid dye,

A synthetic polyamide fiber was dyed using a dye composition consisting of 40 parts by weight of CIAcid Red 119, 10% of CIAcid Red 299 40 {10% of CIAcid Red 97} (diluent), and a dyeing speed curve was measured at the same time.

The staining conditions are as follows. Equipment used: Minicolor 12 type (manufactured by Texam Giken) Dyeing object: nylon jersey (manufactured by Toray Industries) Bath ratio: 1:30 Dyeing concentration: 1.0% o.w.f Auxiliary agent; ammonium sulfate 2.0% o.w.f

This dye composition dyed a polyamide fiber in a desirable blue-red color with good levelness. FIG. 1 shows the dyeing speed curves of the components of the dye composition and the dye mixture. This compounded dye exhibited a good compatibility dyeing speed curve.

Example 2 Using the dye prepared in Example 1 as a blue dye of a fast acid dye, a dye having the following composition as a yellow dye: (1) CIAcid Yellow 42 (dye group YA) (2) CIAcid Orange 67 (Dye group YB) (3) CIAcid Orange 127 (Dye group YC) Same amount of the dye of (1) (2) (3) above

(4) CIAcid Blue 127 (dye group BA) (5) CIAcid Blue 260 (dye group BB) (6) CIAcid Blue 40 (dye group BC) Above (4) (5) Using the same amount of the dye of (6),
Staining was carried out under the same staining conditions. However, the usage fee of each compounded dye was red dye; 0.52% owf yellow dye; 0.66% owf blue dye; 0.65% owf. The dyeing speeds of these three primary colors were similar, and a uniform brown dyed product having good compatibility was obtained.

Example 3 As a fast acid dye, a red dye composition composed of 40 parts by weight of CIAcid Red 119 in the form of a free acid and CIAcid Red 299 40 {CIAcid Red 97 10} 10 mg of sodium sulfate (diluent) was used. The synthetic polyamide fiber was dyed. The staining conditions are as follows.

Dyeing material: Nylon jersey (manufactured by Toray Industries) Bath ratio: 1:30 Dyeing concentration: 1.0% owf acetic acid; Added to make pH = 4 Glauber's salt; 5% owf temperature; From 50 ° C. to 100 ° C. 40 Temperature rise in 100 minutes, 100
Hold at ℃ for 30 minutes

The dyeing exhibited good compatibility and a bluish-red dyed product was obtained. This dye composition was used for dyeing three primary colors in the same manner as in Example 2, and the dyeing speeds of the three primary colors were similar, and a dyed product with good compatibility and uniform brown color was obtained.

[0031]

[Brief description of the drawings]

FIG. 1 shows a dyeing speed curve of each component of the dye composition described in Example 1 and a prepared dye.

[Explanation of symbols]

1 shows the dyeing rate curve of CIAcid Red 119. 2 shows the dyeing rate curve of CIAcid Red 299. 3 shows the dyeing rate curve of CIAcid Red 97. 4 shows the dyeing speed curve of these four-component dye compositions.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-53972 (JP, A) JP-A-6-184459 (JP, A) JP-A-3-1311663 (JP, A) JP-A-54-1979 8630 (JP, A) JP-A-62-167359 (JP, A) JP-A-53-117025 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C09B 67/22 D06P 3 /twenty four

Claims (7)

(57) [Claims] 1. A dye composition for dyeing polyamide fibers, comprising: (1) CIAcid Red 119,
(2) CIAcid Red 299 and (3) CIAcid Red 6, CIAc
id Red97, CIAcid Red 114, CIAcid Red 257, C.
I.Acid Red 337, CIAcid Orange 19 or CIAci
d A red dye composition comprising a mixture of at least three dyes of at least one selected from Violet 90. (2) The dye of CIAcid Red 119 is 20 to 60.
% By weight, (2) 20 to 60% by weight of CIAcid Red 299 dye, (3) CIAcid Red 6, CIAcid Red 97, CIAcid
Red114, CIAcid Red 257, CIAcid Red 337, C.
2. The red dye composition according to claim 1, wherein one or more dyes selected from I. Acid Orange 19 or CI Acid Violet 90 are in a range of 1 to 30% by weight. (1) The dye of CIAcid Red 119 is 20 to 60.
The red dye composition according to claim 1, wherein the amount of the dye of (2) CIAcid Red 299 is 20 to 60% by weight, and the amount of (3) the dye of CIAcid Red 97 is 1 to 30% by weight. 4. A method for dyeing polyamide fibers, comprising dyeing polyamide fibers with the red dye composition according to any one of claims 1 to 3. (5) CIAcid Red 119, (2) CIAcid Red
299 and (3) CIAcid Red 6, CIAcid Red 97, CI
Acid Red 114, CIAcid Red 257, CIAcid Red 337
Dyeing a polyamide-based fiber material, comprising dyeing from a dye bath containing at least three types of dyes selected from one or more types selected from CIAcid Orange 19 and CIAcid Violet 90. 6. Dye group (YA), (YB) and (YC) Dye group (YA); CIAcid Yellow 42, 219 Dye group (YB): CIAcid Orange 67, 127 Dye group (YC): CIAcid Orange 95 , 127, respectively (at least 3 dyes)
Species), a yellow dye composition, a dye group (BA) shown below,
(BB) and (BC) Dye group (BA): CIAcid Blue 127, 127: 1 Dye group (BB): CIAcid Blue 40, 260 Dye group (BC): One or more selected from CIAcid Blue 40, 264, respectively Dyes (at least 3
And a red dye composition according to any one of claims 1 to 3, which is used as a three primary color dye to dye polyamide fibers. Dyeing method. 7. A polyamide fiber dyed by the dyeing method according to claim 4. Description: [0001]