JP3290486B2 - Dye composition for polyamide fiber, dyeing method thereof and dyed product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to the dyeing of polyamide fibers. More specifically, the present invention relates to a red dye composition for polyamide fibers suitable for sportswear and the like requiring high wet fastness, a dyeing method 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. When dyeing a polyamide fiber with a so-called leveling-type acid dye having high transferability, the initial dyeing property (strike property) in a room temperature region is relatively large, but since the transferability is good, several kinds of dyes are used. Even if blending, toning and dyeing are performed, mutual dye transfer occurs in the subsequent temperature raising process, so that it is easy to obtain a uniform dyed product over each concentration. Accordingly, dyeing with so-called three primary color dyes of yellow, red and blue is awarded. However, on the other hand, the wet fastness is insufficient.

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

[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]

However, the present inventors have overcome the drawbacks of conventional dyeing, namely,
The present inventors have made intensive studies on dyes and dyeing methods capable of uniformly dyeing polyamide fibers and imparting good wet fastness, and have found a particularly suitable red dye composition for polyamide fibers, and have completed the present invention. .

[0006] That is, an object of the present invention is to provide a dye composition capable of dyeing polyamide fibers in a uniform red color and imparting good wet fastness. Another object is to provide a method for dyeing polyamide fibers uniformly and with good wet fastness in red. Yet another object is to provide a polyamide fiber which is dyed a uniform red color and has good wet fastness.

The present inventors have proposed a fast acid dye and a dye having a similar chemical structure as described in the acid dye section of the Color Index Third Edition (published by Society of Dayers Colorist). , A single dye was selected from each of a red dye and a blue dye, and the dyeing behavior on polyamide fibers was individually investigated under the same dyeing conditions.

As a result, first, in each of the three primary color systems, a single dye is selected from each of the three groups, and is blended, so that the dye for the three primary colors can be provided with wet fastness and imparting levelness. The composition was obtained, and the dyeing speeds of the three primary colors were aligned, so that it was possible to dye in a so-called good compatibility state, and it was found that a uniform dyed product could be obtained with good reproducibility at each concentration and each temperature. (Japanese Patent Application 63-200
No. 91) has found an even more excellent red dye composition and completed the present invention.

[0009]

The present invention provides a dye group (R)
A red dye composition for three primary colors for polyamide fiber dyeing, comprising at least 5% by weight or more of one or more dyes selected from A), (RB) and (RC).

Dye group (RA): C.I. Acid Red 119 Dye group (RB): C.I. Acid Red 151, 299 Dye group (RC): C.I. Acid Orange 95

Further, the present invention is a method for dyeing polyamide fibers, which comprises dyeing polyamide fibers using the red dye composition. Furthermore, the present invention relates to a polyamide fiber dyed using the red dye composition.

The present invention further provides a 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

A yellow dye composition comprising at least 5% by weight or more of one or more dyes selected from the group consisting of the following dye groups (BA), (BB) and (BC): CIAcid Blue 127, 127: 1 Dye group (BB): CIAcid Blue 40, 260 Dye group (BC): CIAcid Blue 40, 264

A dye composition obtained by blending two or three primary colors of a blue dye composition prepared by blending at least 5% by weight of one or more dyes selected from the group consisting of: A method of dyeing polyamide fibers,
Furthermore, it is a polyamide fiber dyed in this way.

Hereinafter, the method of the present invention will be described in more detail. Although the red dye composition for three primary colors for dyeing polyamide fibers of the present invention can obtain a dyed material having good levelness even by itself, the yellow dye composition for three primary colors and the three primary colors described above are particularly useful. Used together with a blue dye composition, when used as a so-called three primary color dye composition,
It will give more favorable results.

Accordingly, the present invention encompasses a compound dye composition for three primary colors, dyeing polyamide fibers with these, and polyamide fibers dyed with these.

Each dye group added to the above-mentioned dye composition
The dyes (YA), (RA) and (BA) are characterized in that they belong to dyes having a low dyeing speed in the range of 30 to 70 ° C. in the course of dyeing and heating of polyamide fibers.

The dyes of the dye groups (YB), (RB) and (BB) are characterized in that they belong to dyes having a high dyeing speed in the range of 50 to 80 ° C. in the process of dyeing and heating polyamide fibers. is there. Further, the dyes of the dye group (YC), (RC) and (BC) are
It is characterized in that it belongs to a dye of the same or slightly larger dyeing speed as the dye groups (YB), (RB) and (BB) in the region of 50 to 80 ° C.

In preparing these yellow, red and blue dyestuff dye compositions which are preferred embodiments of the present invention, at least 5 parts by weight (individually) of a single dye from each group for each of the three primary colors is used. It is preferable to mix using at least 10 parts by weight (based on 100 parts by weight of the prepared dye composition).

As a preparation method, individual dyes selected from these dye groups may be added to the dye bath at the time of dyeing and prepared. However, when it is complicated, before adding to the dye bath, Preparing a dye composition in which the selected individual dyes are blended, more preferably, a dye composition for three primary colors selected from a dye group from each of the three primary color systems so as to be usable in a wide hue range. It is good to mix things.

In the three primary color dyeing using the thus obtained yellow, red and blue dyestuff composition,
Even if these are blended in an arbitrary ratio, advantageous dyeing can be realized without impairing levelness.

The polyamide fiber according 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. ,
Woven fabric, knitted fabric, carpet, etc. The dye composition according to the present invention is excellent in leveling property because the change in the dyeing speed with the change in the dyeing temperature and the maximum dyeing speed are small as compared with the conventional fast acid dyes.

In the dye composition according to the present invention, the dyeing curve is (1) as in the case of the compounded dye (4) shown in FIG. 1, for example.
, (2), which is advantageous for obtaining level dyeing. In addition, when the compound dye composition obtained from the present invention is used for compound dyeing as three primary colors, the dyeing speed is similar without being influenced by the compounding ratio of each dye, and compound dyeing of a fast acid dye. In addition, the blocking phenomenon which is often observed in the above is not generated.

That is, the dye composition according to the present invention provides a red dye for three primary colors of a fast acid dye having extremely good compatibility. FIG. 2 shows a dyeing curve in three primary color mixing dyeing.

[0025]

According to the present invention, polyamide fibers can be dyed with good levelness by using a specific dye composition.

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, it is possible to arbitrarily set a dyeing program suitable for the processing form of the polyamide fiber and the type of the dyeing apparatus, and to obtain a uniform and wet fastness. Good dyestuffs can be easily obtained with good reproducibility. As a result, it has been found that the dyeing time, which conventionally required a long time, can be inevitably shortened, and an industrially advantageous dyeing method can be established.

In particular, it has been conventionally known that a method was found in which the use of the red dye composition of the fast acid dye as the three primary color dyes provided good dyeing compatibility at any mixing ratio. At the same time, it is surprising that the industrial value of the present invention is extremely large.

[0028]

【Example】

 EXAMPLES Next, the present invention will be described with reference to examples.

Example 1 As a fast acid dye (1) CIAcid Red 119 (dye group RA) (2) CIAcid Red 299 (dye group RB) (3) CIAcid Orange 95 (dye group YC) (4 ) Dyes of the above (1), (2) and (3)

The synthetic polyamide fiber was dyed with the use of a red dye, and the dyeing speed curve was measured at the same time. The staining conditions are as follows. Equipment used: Minicolor 12 type (Texam Giken) Dyeing object: Nylon taffeta (Toray 22QJ) Bath ratio: 1:30 Dyeing concentration: 1.0% owf Auxiliary agent; Ammonium sulfate 2.0% owf

The dyeing speed curves of the single dyes (1), (2) and (3) and the compounded dyes of (4) are shown in FIG. The temperature was raised from 40 ° C. to 90 ° C. for 20 minutes, and then kept at 90 ° C. for 30 minutes.
With a total time of 50 minutes, the dyestuff (4) obtained a dyed product having good levelness. Single dyes (1) and (2) lack levelness. As shown in Table 1, the dyeing speeds of the dyes (1) and (2) are large in a temperature range of 70 to 90 ° C. and lack level uniformity.

[0032]

[Table-1]

Examples 2 to 4 The red dyes (1), (2) and (3) used in Example 1 were dyed under the same conditions as in Example 1 at a blending ratio as shown in Table 2.
In each case, dyeings having good levelness were obtained.

[0034]

[Table-2]

Example -5 The dye of the formula (4) of Example 1 as a reddish type of a fast acid dye, and the dye of the following composition as a yellow type. (5) CIAcid Yellow 42 (dye group YA) (6) CIAcid Orange 67 (dye group YB) (7) CIAcid Orange 127 (dye group YC) (8) Dye of the above (5) (6) (7)

A dye having the following composition as a blue dye (9) CIAcid Blue 127 (dye group BA) (10) CIAcid Blue 260 (dye group BB) (11) CIAcid Blue 40 (dye group BC) (12) A mixture of the above (9), (10) and (11) dyes in the same amount

[0037] The dye was stained under the staining conditions of Example 1. However, as for the temperature condition, the temperature was raised from 40 ° C. to 90 ° C. for 40 minutes, and then kept at 90 ° C. for 30 minutes. The amount of each of the three primary colors dyed on the dyed product was measured. FIG. 2 shows the result of the dyeing speed curve. The dyeing speeds of the three primary colors are similar. Uniform brown dyeings with good compatibility were obtained.

Comparative Example 1 The following dyes, which are commercially available as yellow, red and blue dyes of fast acid dyes, are used in the same amounts in three primary colors and dyed under the dyeing conditions of Example-5. did. (13) CIAcid Orange 67 (14) CIAcid Red 299 (15) CIAcid Blue 138

In the course of heating, the reddish component was conspicuous on the dyeing in the course of the heating, and finally a brown dyed product was obtained. The compatibility between the respective dyes is poor, the leveling properties are lacking, and the reproducibility of the dyed product is problematic. The amount of each of the three primary colors dyed on the dyed product was measured. The result of the dyeing speed curve is shown in FIG. Compared with FIG. 2 relating to Example-5, the dyeing speeds of the three primary colors are not uniform.

Example 6-8 The compounding ratio of the compounded dyes of (4), (8) and (12) of Example-5 is shown in Table.
The color was changed as in Example 3 and stained. The staining conditions are the same as in Example-5. In each case, a uniform dyed product having good compatibility was obtained.

[0041]

[Table-3]

Example 15 As a fast acid dye, a compound dye used in Example 5
(4) (8) and (12) were mixed in the same amount and dyed wool. The staining conditions are as follows.

Woven sliver bath ratio: 1:30 Staining density: 1.0% owf acetic acid; added so that PH = 4 Glauber's salt; 5% owf temperature; temperature rise from 50 ° C. to 100 ° C. in 40 minutes, 100 ° C. At 30
Min retention: Good compatibility with dyeing behavior was exhibited, and a brown dyed product was obtained.

[0044]

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 show the dyeing speed curves of various dyes.

FIG. 1 relates to Example-1; I. Acid
Red 119 is (1), C.I. I. Acid Red
299 as (2), C.I. I. Acid Orange 9
5 is indicated by (3), and the dyes prepared by mixing (1), (2) and (3) in the same amount are indicated by (4).

FIG. 2 relates to Example-5; I. Acid
Yellow 42, C.I. I. Acid Orange
e 67, C.I. I. Acid Orange 127 was mixed with the same amount of a yellow dye (8) using C.I. I. Aci
d Blue 127, C.I. I. Acid Blue
260, C.I. I. A blue dye prepared by mixing Acid Blue 40 in the same amount is indicated by (12).

FIG. 3 relates to Comparative Example 1; I. Acid
Orange 67 in (13), C.I. I. Acid
Red 299 in (14), C.I. I. Acid B
lue 138 is indicated by (15).

[Explanation of symbols]

(1) C. I. Acid Red 119 (2) C.I. I. Acid Red 299 (3)... I. Acid Orange
95 (4) Dye prepared by mixing (1), (2) and (3) in the same amount

──────────────────────────────────────────────────続 き Continuation of the front page Examiner Shohide Hoshino (56) References JP-A-48-32125 (JP, A) JP-A-2-53972 (JP, A) JP-A-53-111175 (JP, A) JP-A-58-125755 (JP, A) JP-A-62-167359 (JP, A) JP-A-4-213369 (JP, A) JP-A-61-119781 (JP, A) JP-A-59-173385 (JP, A) JP-A-58-118859 (JP, A) JP-A-58-197384 (JP, A) JP-B-43-7704 (JP, B1) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) C09B 67/22 D06P 3/24 CA (STN)

Claims (5)

(57) [Claims] 1. A red color for three primary colors for dyeing polyamide fibers, comprising at least 5% by weight or more of one or more dyes selected from the following dye groups (RA), (RB) and (RC). Dye composition. Dye group (RA): CIAcid Red 119 Dye group (RB): CIAcid Red 151, 299 Dye group (RC): CIAcid Orange 95 2. A method for dyeing polyamide fibers, comprising dyeing polyamide fibers with the red dye composition according to claim 1. 3. A polyamide fiber dyed with the red dye composition according to claim 1. 4. 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, and at least 5% by weight or more of at least one dye selected from the group consisting of the following dye groups (RA), (RB) and (RC) Dye group (RA): CIAcid Red 119 dye group (RB): CIAcid Red 151, 299 Dye group (RC): Red dye composition comprising at least 5% by weight or more of at least one dye selected from CIAcid Orange 95 and the following: Dye group (BA), (BB) and (B
C) Dye group (BA): CIAcid Blue 127, 127: 1 Dye group (BB): CIAcid Blue 40, 260 Dye group (BC): At least one dye selected from each of CIAcid Blue 40, 264 A method for dyeing polyamide fibers, comprising dyeing polyamide fibers by blending a blue dye composition blended in an amount of at least 10% by weight. 5. A polyamide fiber dyed by the method according to claim 4. [0001]