JP3311170B2 - Orange disperse dye composition and method for dyeing hydrophobic fiber material using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dye composition and a dyeing method using the same. More specifically, the present invention relates to a water-insoluble disperse dye composition containing a specific dye and a method for dyeing hydrophobic fibers using the same.

[0002]

2. Description of the Related Art In recent years, differentiated products utilizing the characteristics of synthetic fibers have been produced as new synthetic fibers by various fiber manufacturers. The yarns that make up these differentiated products are microfibers,
It is made by combining or combining differentiating fibers with special characteristics such as special cross-section yarns, different shrinkage mixed fiber yarns, and natural fibers such as silk-like material, lightly brushed knitted fabric (peach skin), rayon-like material The unique texture and texture unique to synthetic fibers has been accepted, and it is rapidly expanding into the market.

[0003] However, the following problems are raised in the dyeing processing of these new sensitive materials. One is that the surface area of the fiber is increased due to the ultra-fine fiber. Specifically, (1) the reflected light on the fiber surface increases, and the luminous density of the dyed product decreases. (2) It is easily susceptible to oxidation and reduction by light, and light fastness decreases. (3) Due to (1), the amount of dye per unit area increases, and as a result, the sublimation and wet fastness of the dyed product are reduced. Such a problem. In addition, in the processing of composite yarns, different shrinkage blending, and the like, there is a problem of irregularity (uneven dyeing) on the surface of the dyed product due to differences in fiber morphology and heat history of the fibers.

[0004]

In order to solve the former problem, it is necessary to use a dye having excellent build-up properties and high fastness. In order to solve the latter problem, it is necessary to use a dye having excellent transferability or covering property. There are many composite yarns including ultra-fine yarns in the new synthetic fibers, and in dyeing such materials, it is necessary to solve any of the above-mentioned problems in dyeing, so that high covering property, high It is necessary to use a dye having a build-up property and a high fastness. However, few products currently used on the market sufficiently combine these properties. Therefore, development of a dye having these properties sufficiently is desired.

[0005]

Means for Solving the Problems The present inventors have made sincere studies to solve the above-mentioned problems, and as a result, by mixing and dispersing a disperse dye having a specific structure, the above-mentioned problems have been solved. The present invention has been found to be solved, and the present invention has been completed. That is, the present invention relates to the formula (1)

[0006]

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82 to 95% by weight of the dye represented by the formula (2)

[0008]

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4 to 12% by weight of the dye represented by the formula (3)

[0010]

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The present invention provides an orange disperse dye composition comprising 1 to 9% by weight of the dye represented by the formula (1) and a method for dyeing hydrophobic fibers using the same.

The present invention will be described in detail. In general, many azo-based disperse dyes have excellent build-up properties and relatively high fastness, but have low transferability or covering property. Many anthraquinone-based disperse dyes are excellent in light fastness, dye transfer property or covering property, but tend to be poor in build-up property, sublimation fastness and the like. Therefore, anthraquinone dyes have been mainly used in the light to medium color fields, and azo dyes have been mainly used in the medium to dark color fields. However, as described above, it is difficult to appropriately use dyes as in the past when dyeing ultrafine fibers and dyeing composite materials.In other words, ultrafine fibers require a higher level of fastness than before. At the same time, due to the compounding of fibers, dyes having high transferability and covering properties even in medium to dark colors have been required. That is, azo dyes are also required to have high transferability or covering property.

The present inventors blend the dyes represented by the formulas (1), (2) and (3) and use them to provide a dye having excellent build-up properties and fastness and high covering properties. The inventors have found that a composition can be obtained and have reached the present invention.

That is, using the dye composition of the present invention,
By dyeing the above-mentioned composite material, it is possible to obtain a dyed product having extremely small roughness (uneven dyeing) on the surface of the dyed product and excellent fastness.

The dye composition of the present invention contains 82 to 95% by weight, preferably 85 to 90% by weight of the dye represented by the formula (1), and 4 to 12% by weight, preferably 4 to 12% by weight of the dye represented by the formula (2). To 9% by weight and the dye represented by the formula (3)
% By weight, preferably 4 to 9% by weight.

Next, the dye represented by the formula (1) used in preparing the dye composition of the present invention is disclosed in
Nos. 16039, 36-18534, 36-207
According to No. 89, the dye represented by the formula (2) is
Nos. 9593, 45-39510 and the dyes represented by the formula (3) are known from U.S. Pat. No. 2,782,187, respectively, and a raw dye powder can be produced by the methods described therein.

The dye composition of the present invention has the formula (1) or (2)
After mixing the respective bulk powders of the dyes represented by the formulas (3) and (3) at the above-mentioned compounding ratios, a fine particle (dispersion) treatment may be performed to obtain a dye composition. May be separately subjected to a fine-graining (dispersing) treatment, and then mixed at the above ratio. In the latter case, dyes which are individually finely divided (dispersed) may be added to the dye bath to form the same composition as the dye composition of the present invention in the dye bath.

When the raw powders of the dyes represented by the formulas (1), (2) and (3) or a mixture thereof are subjected to fine particle treatment, the raw powders of the dyes are generally treated with naphthalenesulfonic acid and alkylbenzene. Formalin condensate of sulfonic acid, formalin condensate of naphthalene sulfonic acid, formalin condensate of cresol sulfonic acid, cresol and 2
-Formalin condensate of naphthol-6 sulfonic acid, formalin condensate of alkyl naphthalene sulfonic acid, formalin condensate of creosote oil sulfonic acid, anionic dispersant such as lignin sulfonic acid, or block copolymerization of ethylene oxide and propylene oxide Dispersants such as ethylene oxide adducts of alkyl phenols and ethylene oxide adducts of polystyrene phenol, or mixtures of these anionic dispersants and non-ionic dispersants, and a ball mill and sand in the presence of a small amount of water. The pulverization is performed by sufficiently performing wet pulverization using a pulverizer such as a grinder or a sand mill. At this time, the bulk of the dye is usually 10 to 10% based on the total amount of the dye composition.
It is blended at a ratio of 50% by weight. The dye composition of the present invention is subjected to dyeing in the form of a paste in the form of fine particles or after drying.

Specific examples of the hydrophobic fiber which can be dyed by the method of the present invention include polyester fiber, triacetate fiber, diacetate fiber, polyamide fiber and a blended product thereof, and these are used in combination with recycled fiber such as rayon or cotton. It may be a blended product with natural fibers such as silk, wool and the like.

In order to dye hydrophobic fibers with the dye composition containing the dyes represented by the formulas (1), (2) and (3) used in the method of the present invention, the fibers are dipped. 105 ° C. or higher, preferably 110
Advantageously, the dyeing is carried out at from 0 to 140 ° C. Dyeing can also be performed at a relatively high temperature, for example, in the boiling state of water, in the presence of a carrier such as o-phenylphenol or trichlorobenzene. Alternatively, dyeing by a so-called thermosol method in which the dye dispersion is padded on a cloth and subjected to a dry heat treatment at 150 to 230 ° C. for 30 seconds to 1 minute is also possible. On the other hand, the dye composition of the present invention may be used with natural pastes (eg, locust bean gum, guar gum, etc.), processed pastes (eg, cellulose derivatives such as carboxymethyl cellulose, processed locust bean gum, etc.), and synthetic pastes (eg, polyvinyl alcohol, polyvinyl alcohol). The printing paste may be adjusted together with acetic acid, etc., and then printed on a cloth and then dyed by a printing method of steaming or thermosol treatment.

Hereinafter, the effects of the present invention will be described with reference to Tables 1 and 2. In the description, “parts” and “%” are “parts by weight” and “% by weight”, respectively. Tables 1 and 2 show the results of dyeing the dye composition of the present invention with Examples and Comparative Examples using commercially available dyes. As is clear from Table 1, the dye composition of the present invention is superior in covering property, that is, the leveling property of the composite material as described above, to the commercially available dye as a comparative example. From Table 2, it can be said that the fastness level of the dye composition of the present invention and the commercial dye of the comparative example are not so different from each other in the case of the regular polyester (3.0d). Commercially available dyes are particularly deteriorated in light fastness,
Although the deterioration of the light resistance of the dye composition of the present invention is slight, a very high level of light resistance, sublimation, and wetness (washing) are required for ultrafine materials.
It can be seen that each of the fastnesses is relatively good.

[0022]

[Table 1]

(Note 1) A dye bath containing 0.5 part of the dye composition obtained in Example 1 and a total amount of 3,000 parts was prepared, and a polyester covering test cloth (fibers having different heat histories were knitted into vertical stripes). 100 parts) and immersed in
After dyeing for 0 minutes, reduction washing, water washing and drying were performed. As a comparative example, a commercially available dye was adjusted to have a luminous density substantially equivalent to that of the dyed fabric of the dye composition of Example 1, and dyed similarly. (Note 2) The dark and light colored portions of each of the obtained dyed fabrics were measured using a COMSEK III colorimetric system (manufactured by Nippon Kayaku Co., Ltd.).
Was used to calculate the density ratio between the dark color portion and the light color portion (the density of the dark color portion is assumed to be 100). (Note 3) C. is widely used as a relatively fast orange dye. I. Use commercially available Disperse Orange 73

[0024]

[Table 2]

(Note 4) Dye composition 6 obtained in Example 1
2 parts of a dyeing bath having a total amount of 3000 parts are prepared, one of which is a 3.0-denier regular polyester cloth and the other is a 0.3-denier ultra-fine polyester cloth 1
00 parts were immersed and dyed at 130 ° C. for 60 minutes, then reduced, washed, washed with water and dried. A fastness test was performed using the obtained dyed product. The commercially available dye of the comparative example was adjusted so as to have a luminous density substantially equivalent to that of the dyed product of the dye composition of Example 1, and dyed similarly.

(Note 5) JIS-L0842, carbon arc lamp method, the degree of discoloration was judged by JIS blue scale for discoloration. (Note 6) JIS-L0879B, 180 ° C, 30 seconds, Judge the degree of contamination on polyester white cloth by gray scale for JIS contamination. Method 61
IIA), and the degree of contamination of the nylon white cloth was determined by the gray scale for JIS contamination.

[0027]

The present invention will be described more specifically with reference to the following examples. In the examples, "parts" and "%" are "parts by weight" and "% by weight", respectively.

Example 1 26 parts of the bulk powder of the formula (1), 2 parts of the bulk powder of the formula (2) and 2.5 parts of the bulk powder of the formula (3) were mixed with Demol N ( 69. Anionic dispersant manufactured by Kao Corporation)
Using a sand grinder together with 5 parts, the mixture was finely divided (dispersed) to obtain a dye composition of the present invention. This dye composition 1
Of pure water adjusted to pH 4.5 to 3,000 parts by weight to prepare a dye bath.
And then dyed at 130 ° C. for 60 minutes. The dyed product was then treated with 6 parts of 45% caustic soda and hydrosulfite 6
Parts, 3 parts of Sunmol RC-700 (manufactured by Nichika Chemical Co., Ltd., anionic surfactant), reduced water at 80 ° C. for 10 minutes in a bath having a total amount of 3000 parts by adding water, water washing, and drying Thus, a red dyed product was obtained. The resulting dyed product is lightfast,
Sublimation and water fastness were at good levels. Further, there was almost no dye in the residual bath after dyeing, and the dye was extremely excellent in exhaustion.

Example 2 To 1.6 parts of the dye composition of Example 1 was added 3000 parts of pure water adjusted to pH 4.5 to prepare a dyeing bath, which was prepared using a Gina Desin cloth (Toyobo Co., Ltd.) Made, polyester new synthetic fiber)
100 parts were immersed and dyed in the same manner as in Example 1 to obtain a red dyed product. The obtained dyed product was very excellent in levelness.

Example 3 To 20 parts of the dye composition of Example 1, 380 parts of water was added, and 7.5% of Fine Gum MC-8 (a paste agent manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) and sorbitol C5 were added. Original glue 6 containing 4.5% (0.3% citric acid), manufactured by WA Scotelen
After kneading with 100 parts, printing on a polyester palace cloth, and performing high-temperature steaming at 175 ° C. for 7 minutes, 2 parts of soda ash, 2 parts of hydrosulfite, Meisanol BHS New (Meisei Chemical Industry Co., Ltd.) 1 part of a nonionic surfactant) was subjected to reduction washing at 80 ° C. for 10 minutes in a bath prepared by adding water to 1000 parts, and then washing with water and drying to obtain an orange dyed product. The light-fastness, sublimation and water fastness of the obtained dyed product were at good levels.

[0031]

According to the dyeing method using the dye composition of the present invention, it is possible to obtain a dyed product having a small surface roughness and excellent fastness.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C09B 67/22 D06P 1/18-1/19 CA (STN) REGISTRY (STN)

Claims (2)

(57) [Claims] (1) Formula (1) 82 to 95% by weight of the dye represented by the formula (2) 4 to 12% by weight of a dye represented by the formula (3): An orange disperse dye composition comprising 1 to 9% by weight of a dye represented by the formula: 2. A method for dyeing a hydrophobic fiber material, comprising using the disperse dye composition according to claim 1.