JPH02289656A - Disperse dye composition for polyester fiber and method for dyeing or printing same fiber - Google Patents

Abstract

PURPOSE:To obtain the title composition capable of dyeing a polyester fiber to a navy color having good light resistant, sublimation resistant, cleaning resistant, water resistant and abrasion resistant fastness and reduced in white field staining properties by blending specific three or more kind of dyes at a specific ratio. CONSTITUTION:The aimed composition obtained by (A) 70-90wt.% dye expressed by formula I with (B) 5-15wt.% dye expressed by formula II, (C) 5-15wt.% dye expressed by formula III and as necessary (D) 0-20wt.% dye expressed by formula IV (X is Cl or Br).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water-insoluble navy disperse dye composition and a method for dyeing or printing polyester fibers using these dye compositions. More specifically, the present invention uses 5 to 15% by weight of the dye represented by formula (1) (hereinafter referred to as the margin) and 5 to 15% by weight of the dye represented by formula (III) 1''JJ, based on the total dye powder. % and, if necessary, general formula (rV) [in formula (IV), X represents a chlorine or bromine atom] dye represented by 0 to 20% by weight of a navy solid color for polyester fibers. The present invention relates to a disperse dye composition and a dyeing or printing method using the same.The dyes represented by formulas (1) to (IV) are blue,
A known violet or yellow-brown dye or [{Iu dye. It is well known that dispersed water-insoluble dyes are used to dye polyester fibers, and although single-piece disperse dyes for navy colors are known, single-piece dyes with excellent color fastness are scarce. The present invention dyes polyester fibers into a navy color with good light fastness, sublimation fastness, washing fastness, water fastness, and abrasion fastness. The object of the present invention is to provide a dye composition that has low viscosity or less white spot staining during washing after dyeing, and a dyeing method using the same. It goes without saying that dyed polyester fibers have good light fastness and sublimation resistance, but in recent years, the washing fastness, water fastness, and abrasion resistance of dyed products after various subsequent processing have also increased. Good fastness is now required. However, these fastnesses are different when the dye is used as a single item, and when the dye is used alone.
Mixtures of several types often exhibit different behavior, and the combination of formulations is an important issue, especially for polyester dyes that need to produce a navy color. On the other hand, when blended dyes are used, the dyeing behavior is different from that of each individual dye, so there are problems with the dyeing rate during printing, in-machine sublimation (contamination of the white background by the dye), and printing When cleaning the undyed dye afterwards, staining of the white area of the dyed product (white area staining) becomes a problem.
Particularly in recent years, the above two points have become important checkpoints when aiming to improve the quality of dyed objects, but nothing that fully satisfies the market requirements has yet been found.

Therefore, as a result of intensive studies on these problems, especially on the contamination during printing, the present inventors found the above structural formulas (1), (I
By blending each of the dyes shown in I), (■), and (IV) in a specific composition ratio, we succeeded in developing a blended dye Φ that has excellent fastness properties and does not cause staining during printing. Furthermore, since this blended dye has a high dyeing rate, the amount of washing water used in the washing process after dyeing can be reduced, contributing to energy and resource conservation. The navy one-color dye composition of the present invention has the formula (1
) 70 to 90% by weight of the dye represented by formula (II), 5 to 15% by weight of the dye represented by formula (II), and 5 to 90% by weight of the dye represented by formula (m)
They may be blended in a proportion of 15% by weight, and in order to obtain a particularly desirable navy dyed product, the dye represented by formula (r) should be blended in an amount of 70 to 80% by weight, and the dye represented by formula (II) should be blended in a proportion of 5 to 80% by weight.
It is preferable to mix 10% by weight of the dye represented by formula (II[) and 5 to 10% by weight of the dye represented by formula (II[). In addition, the dye represented by the formula (IV) is used as a toning component for the navy color in the present invention, and therefore is not necessarily necessary.
), formula (■), and formula (III), the blending ratio of the dye represented by formula (rV) can be freely selected within the range of 0 to 20% by weight. The dyes represented by formulas (1) to (IV) used in the present invention are known azo dyes or similar azo dyes, and can be easily obtained or produced according to conventional methods. In carrying out the present invention, the press cake of each dye to be blended is atomized and dispersed in an aqueous medium together with an appropriate dispersant, and then either left as is in a liquid state or powdered by spray drying, etc., and then blended in a predetermined ratio. Advantageously, a navy dye composition is obtained. In order to dye polyester fibers using the dye composition thus obtained, dyeing is carried out under pressure at 105°C or higher, preferably at 110 to 140°C, and in the presence of a carrier such as phenylphenol. Examples include a method of dyeing at a relatively high temperature, for example, the boiling point of water, or a method of padding a cloth with a dye dispersion and performing a dry heat treatment at 150 to 230'C for 30 to 60 seconds (thermosol method). On the other hand, when printing, the dye composition is kneaded with a suitable sizing agent such as guar gum or locust peen gum.
This is printed on cloth and processed by steaming or thermosol method to achieve the desired purpose. The effects of the present invention will be explained below using Table 1. Table 1 shows the results of printing using Examples of the dye composition of the present invention and commercially available dyes as comparative examples. As is clear from Table 1, all of the blended dyes of the present invention are superior in various fastnesses to commercially available dyes as comparative examples.
In particular, it can be seen that there is little in-machine sublimation and white field contamination. (The following is a blank space) [Example] The present invention will be explained in more detail with reference to Examples below.
The present invention is not limited to these. In the example
``Parts'' means ``parts by weight.'' Example 1 24 parts of the dyestuff of formula (1) above was atomized and dispersed with 12 parts of Demol N (product of Kao Atlas Co., Ltd.) and 34 parts of water, and blended. Component (J) was adjusted. A compounding component (K) prepared by atomizing and dispersing 3 parts of the dyestuff of the formula (n) above with 3 parts of Demol N and 9 parts of water, and the formula (I [I)]
(J) by blending the blending component (L) prepared by atomizing and dispersing 3 parts of the dyestuff with 3 parts of Demol N and 9 parts of water.
, (K), and (L) were obtained. 100 parts of a napy color blended dye composition was obtained.

After adding 100 parts of water to 50 parts of this navy dye composition, 140 parts of O/W type emulsion glue and Maypro Gum N
P (processed/locust bean gum? IAYiIALL
Company product) 12% base} Knead together with 210 parts,
It was printed on polyester fiber and subjected to high temperature steaming at 175°C for 8 minutes. Thereafter, the dyed product was heated at 65° in a bath consisting of 1.5 parts of soda ash, 1.5 parts of hydrosulfite, 0.75 parts of Scoreroll 400 (nonionic surfactant, a product of Kao Atlas Co., Ltd.) and 1500 parts of water. C. Reduction washing treatment was carried out for 10 minutes, washing with water and drying yielded a solid navy dyed product with high density. The printed product had extremely low white spot staining during reduction washing and in-machine sublimation staining during color development, and was excellent in light fastness, sublimation, water fastness, washing fastness, etc.

Example 2 21 parts of the dyestuff of the formula (1) above was atomized and dispersed together with parts of Demol NIO and 20 parts of water to prepare a blended component (M). A blending component (N) was prepared by atomizing and dispersing 2 parts of the dyestuff of the formula (II) with Nl part of Demol and lO part of water. A compounding component (P) was prepared by atomizing and dispersing 1.5 parts of the dyestuff of formula (I [I) above with 1 part of Demol N and 10 parts of water. 5.5 parts of the dyestuff in which X in the dye of formula (IV) is a bromine atom was mixed with 3 parts of Demol N and 1 part of water.
The blended component (Q) was adjusted by atomizing and dispersing with 5 parts. These ingredients (M), (N), (P), (Q
) to obtain 100 parts of a navy dye composition. When printing was carried out in the same manner as in Example 1 using 50 parts of this dye composition, white area contamination during reduction washing, sublimation in the machine during color development was small, and various fastnesses such as light fastness, sublimation, water, and washing were affected. A navy colored printed product was obtained. Example 3 A dye bath is prepared by uniformly dispersing 5 parts of the navy dye composition obtained in Example 1 in 1500 parts of water containing 1.5 parts of higher alcohol sulfate. Next, 50 parts of Tetron spun yarn was immersed and dyed at 130°C for 60 minutes.
The dyed material was mixed with 1.5 parts of caustic soda, 1.5 parts of hydrosulfite, 1.5 parts of betaine type amphoteric surfactant and 15 parts of water.
A reduction washing treatment was carried out for 10 minutes at 65°C in a bath consisting of 0.00 parts, washed with water, and dried to obtain a solid navy dyed product with high density. This dyed product had excellent light fastness, sublimation fastness, water fastness, etc. Patent applicant Mitsui Toatsu Chemical Co., Ltd.

Claims (1)

[Claims] 1. Formula (I) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ 70 to 90% by weight of the dye represented by (I) Formula (II) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ ( II) 5 to 15% by weight of the dye represented by formula (III) ▲Mathematical formulas, chemical formulas, tables, etc.▼(III) 5 to 15% by weight of the dye represented by formula (III), and general formula (IV) as necessary A navy-colored disperse dye composition for polyester fibers, characterized in that it contains 0 to 20% by weight of a dye represented by formula (IV), in which X represents a chlorine or bromine atom. 2. Dye represented by formula (I) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ 70-90% by weight of the dye represented by (I), Formula (II) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (II) 5-15% by weight, formula (III) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ 5-15% by weight of the dye represented by (III) and, if necessary, general formula (IV) ▲ Numerical formulas, chemical formulas, tables, etc. etc. ▼ (IV) It is characterized by using a navy-colored disperse dye composition containing 0 to 20% by weight of the dye represented by [Formula (IV), X represents a chlorine or bromine atom]. A method of dyeing or printing polyester fibers.