JPH08100132A - Orange disperse dye composition and dyeing hydrophobic fiber material using the same - Google Patents

Abstract

PURPOSE: To obtain the subject water-insoluble dye composition, containing a disperse dye having specific three structures in a specified proportion, causing slight blebs on the surface of a dyed product and useful for providing the dyed product excellent in fastness. CONSTITUTION: This dye composition is obtained by blending (A) 82-95wt.%, preferably 85-90wt.% dye of formula I with (B) 4-12wt.%, preferably 4-9wt.% dye of formula II and (C) 1-9wt.%, preferably 4-9wt.% dye of formula III. Furthermore, a hydrophobic fiber material (e.g. a polyester fiber or a triacetate fiber) is preferably dyed with the dye composition by dipping the hydrophobic fiber material in an aqueous solvent containing the fiber dipped therein at >=105 deg.C, preferably 110-140 deg.C under pressure.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a dye composition and a dyeing method using the same. More specifically, it relates to a water-insoluble disperse dye composition containing a specific dye and a method for dyeing a hydrophobic fiber using the same.

[0002]

2. Description of the Related Art In recent years, differentiated products that utilize the characteristics of synthetic fibers have been created as new synthetic fibers by various fiber manufacturers. The yarns that make up these differentiated products are ultrafine fibers,
Composed of a composite processing or combination of differentiated fibers with special characteristics such as special cross-section yarns and different shrinkage mixed yarns. Natural fibers such as silk-like material, thin napped knitted fabric (peach skin), rayon-like material The texture and texture peculiar to synthetic fibers, which is not available in the market, has been accepted, and is rapidly expanding into the market.

However, there are the following problems in dyeing and processing these new materials. One reason is that the surface area of the fiber is increased due to the ultrafine fiber. Specifically, (1) the reflected light on the fiber surface is increased, and the visual density of the dyed product is reduced. (2) It is susceptible to oxidation / reduction by light, and the light fastness is lowered. (3) Due to (1), the dyeing amount of the dye per unit area increases, and as a result, the sublimation and wet fastness of the dyed product decrease. It is a problem such as. Further, in the processing of composite yarns, mixed fibers of different shrinkage, etc., the problem of unevenness (uneven dyeing) of the surface of the dyed product due to the difference in fiber morphology and heat history of fibers occurs.

[0004]

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

[0005]

Means for Solving the Problems The present inventors have conducted sincerity research to solve the above-mentioned problems, and as a result, the above-mentioned problems were solved by blending a disperse dye having a specific structure and dyeing. The inventors have completed the present invention by finding out that they will be solved. That is, the present invention uses the formula (1)

[0006]

[Chemical 4]

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

[0008]

Embedded image

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

[0010]

[Chemical 6]

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

The present invention will be described in detail. Generally, many azo-based disperse dyes have excellent build-up properties and relatively high fastness, but have low dye transfer property or covering property. Many of the 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 mentioned above, it is difficult to use the conventional dyes properly for dyeing fibers made into fine fibers and composite materials.In other words, due to the fine fibers, a higher level of fastness than before is required. At the same time, due to the complexing of fibers, dyes having high migration and covering properties even in medium to dark colors have been required. In other words, even azo dyes are required to have high transferability or covering property.

The present inventors blended the dyes represented by the formula (1), the formula (2) and the formula (3) and used them to obtain a dye having excellent build-up property and fastness and having high covering property. It was found that a composition was obtained and the invention was reached.

That is, using the dye composition of the present invention,
When the above-mentioned composite material is dyed, unevenness (uneven dyeing) on the surface of the dyed product is extremely small and a dyed product having good fastness can be obtained.

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 4% by weight of the dye represented by the formula (2). ˜9% by weight and 1 to 9 of the dye represented by the formula (3).
%, Preferably 4-9% by weight.

Next, the dye represented by the formula (1) used in preparing the dye composition of the present invention is described in JP-B-36-
No. 16039, No. 36-18534, No. 36-207
No. 89, the dye represented by the formula (2) is
No. 9593, No. 45-39510, and dyes represented by formula (3) are known from US Pat. No. 2,782,187, and bulk dyes can be produced by the methods described therein.

The dye composition of the present invention has formulas (1) and (2).
Alternatively, the respective bulk powders of the dyes represented by the formula (3) may be mixed at the above-mentioned mixing ratio and then subjected to fine particle (dispersion) treatment to obtain a dye composition. The particles may be separately subjected to a fine particle (dispersion) treatment, and then mixed in the ratio as described above. In the latter case, the finely divided (dispersed) dyes 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 bulk powders of the dyes represented by the formulas (1), (2) and (3) or a mixture thereof are subjected to a fine particle treatment, the bulk powders of the dyes are generally naphthalenesulfonic acid and alkylbenzene. Sulfonic acid formalin condensate, naphthalene sulfonic acid formalin condensate, cresol sulfonic acid formalin condensate, cresol and 2
-Formalin condensate of naphthol-6 sulfonic acid, formalin condensate of alkylnaphthalene 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 Compounds, ethylene oxide adducts of alkylphenols, nonionic dispersants such as ethylene oxide adducts of polystyrene phenols, or mixtures of these anionic and nonionic dispersants, in the presence of a small amount of water, ball mill, sand. It is carried out by sufficiently wet pulverizing with a pulverizer such as a grinder or a sand mill. Further, at this time, the bulk powder of dye is usually 10 to 10 parts with respect to the total amount of the dye composition.
It is mixed in a ratio of 50% by weight. The dye composition of the present invention is used for dyeing in the form of a finely divided paste, or after being dried.

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 their blended products, and recycled fiber such as rayon or cotton. It may be a blended product with natural fibers such as silk, wool and the like.

To dye hydrophobic fibers with the dye compositions containing the dyes of formula (1), formula (2) and formula (3) used in the method of the invention, the fibers are dipped. 105 ° C or higher under pressure in an aqueous solvent, preferably 110
It is advantageous to dye at temperatures between 140 ° C and 140 ° C. It is also possible to dye in the presence of a carrier such as o-phenylphenol or trichlorobenzene at a relatively high temperature, for example, boiling water. Alternatively, so-called thermosol method dyeing is possible in which the dye dispersion is padded on a cloth and subjected to dry heat treatment at 150 to 230 ° C. for 30 seconds to 1 minute. On the other hand, the dye composition of the present invention can be prepared by using a natural sizing agent (eg, locust bean gum, guar gum, etc.), a processed sizing agent (eg, fiber derivative such as carboxymethyl cellulose, processed locust bean gum, etc.), a synthetic sizing agent (eg, polyvinyl alcohol, polyvinyl). It is also possible to prepare a printing paste together with (acetic acid, etc.) and the like, and after printing on a cloth, dyeing by a printing method of steaming or thermosol treatment.

The effects of the present invention will be described below with reference to Tables 1 and 2. In the description, "part" and "%" are "part by weight" and "% by weight", respectively. Tables 1 and 2 show the results of dyeing using commercially available dyes as Examples and Comparative Examples of the dye composition of the present invention. As is clear from Table 1, the dye composition of the present invention is superior to the commercially available dyes as comparative examples in the covering property, that is, the leveling property of the composite material as described above. Further, from Table 2, it can be said that the regular polyester (3.0d) does not have so much difference in the fastness level between the dye composition of the present invention and the commercially available dye of Comparative Example, but in the ultrafine polyester (0.3d), Comparative Example Commercially available dyes, especially, have a marked deterioration in light fastness,
Although the deterioration of light resistance of the dye composition of the present invention is slight, a high level is required for ultrafine materials. Light resistance, sublimation, wet (washing)
It can be seen that the respective fastnesses of 1 are relatively good.

[0022]

[Table 1]

(Note 1) A dyebath having a total amount of 3000 parts including 0.5 part of the dye composition obtained in Example 1 was prepared, and a polyester covering test cloth (fibers having different heat histories were knitted in vertical stripes). Dip 100 parts, and at 130 ℃ 6
After dyeing for 0 minutes, reduction washing, water washing, and drying were performed. As a comparative example, a commercially available dye was prepared so that the visual density was almost the same as that of the dye fabric of the dye composition of Example 1, and the dyeing treatment was performed in the same manner. (Note 2) The dark-colored part and light-colored part of each of the obtained dyed cloths are measured by COMSEK III color measurement 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 100). (Note 3) C.I. which is widely used as a relatively high-fastness orange dye. I. Uses a commercial product of Disperse Orange 73

[0024]

[Table 2]

(Note 4) Dye composition 6 obtained in Example 1
Two dyebaths with a total volume of 3000 parts including 1 part are prepared, and 3.0 denier regular polyester processed cloth is used for one side and 0.3 denier ultrafine polyester processed cloth 1 is used for the other side.
00 parts was dipped and dyed at 130 ° C. for 60 minutes, then reduction-washed, washed with water and dried. A fastness test was carried out using the obtained dyed product. The commercially available dye of the comparative example was prepared so that the dye density of the dye composition of Example 1 was substantially the same as that of the dyed product, and the dye was similarly treated.

(Note 5) JIS-L0842, the carbon arc lamp method, and the degree of discoloration are judged by the JIS blue scale for discoloration. (Note 6) JIS-L0879B, 180 ° C, 30 seconds, the degree of contamination on polyester white cloth is judged by JIS contamination gray scale. (Note 7) After heat setting the dyed cloth at 180 ° C for 30 seconds, the washing test (AATCCTest Method 61
(According to IIA) was carried out, and the degree of contamination of the nylon white cloth was judged by the JIS contamination gray scale.

[0027]

EXAMPLES The present invention will be described in more detail 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 dye represented by the formula (1), 2 parts of the bulk powder of the dye represented by the formula (2), and 2.5 parts of the bulk powder of the dye represented by the formula (3) were added to Demol N ( Kao Corporation, anion dispersant) 69.
Fine particles (dispersion) were made with 5 parts by using a sand grinder to obtain a dye composition of the present invention. This dye composition 1
To the parts, a dye bath containing 3000 parts was prepared by adding pure water adjusted to pH 4.5.
Part was immersed and dyed at 130 ° C. for 60 minutes, and then the dyed product was dyed with 6 parts of 45% caustic soda and 6 parts of hydrosulfite.
Part, Sanmor RC-700 (Nikaka Chemical Co., Ltd., anionic surfactant) 3 parts by adding water to make a total amount of 3000 parts, subjected to reduction cleaning at 80 ° C. for 10 minutes, washed with water, and dried. Then, 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, which was very excellent in exhaustion.

Example 2 To 1.6 parts of the dye composition of Example 1 was added pure water adjusted to pH 4.5 to prepare a dye bath of 3000 parts, and a Gina de Chine cloth (Toyobo Co., Ltd.) was prepared. Made of polyester, new synthetic fiber)
100 parts were dipped 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 was added 380 parts of water, and then 7.5% of fine gum MC-8 (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd., sizing agent) and sorbitose C5. (Wa Skotern Co., Ltd., sizing agent) 4.5%, citric acid 0.3% original paste 6
After kneading with 00 parts and printing on a polyester palace cloth and performing high-temperature steaming at 175 ° C for 7 minutes, the dyed product is 2 parts soda ash, 2 parts hydrosulfite, Meisanol BHS New (Meisei Chemical Industry Co., Ltd.) Manufactured by adding non-ionic surfactant (1 part), water was added to make a total amount of 1000 parts, subjected to reduction washing at 80 ° C. for 10 minutes, washed with water and dried to obtain an orange dyed product. The obtained dyed product had good levels of light fastness, sublimation and water fastness.

[0031]

Industrial Applicability By the dyeing method using the dye composition of the present invention, it is possible to obtain a dyed product with less irregularity on the surface of the dyed product and excellent fastness.

Claims (2)

[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 formula (3) An orange disperse dye composition comprising 1 to 9% by weight of a dye represented by 2. A method for dyeing a hydrophobic fiber material, which comprises using the disperse dye composition according to claim 1.