JPS6019782B2 - anionic dye formulation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides 1
- Dye preparations of amino-4(4-acetami/phenyl)aminoanthraquinone-2-sulfonic acid or its salts.

More specifically, the present invention provides 1-amino-4(4-acetaminophenyl)aminoanthraquinone-2-sulfonic acid or a salt thereof.
20-8 wt% anthraquinone-2-sulfonic acid 80-2 wt% nonionic active agent (HLBI
O-20) An anionic dye formulation characterized in that it consists of 0-6% by weight.

It is an object of the present invention to provide anionic dye formulations which exhibit very good solubility and solubility in water or aqueous acidic liquids.

Usually, anionic dyes are used in acid dyeing when dyeing polyamide fiber materials, and in this case, anionic dyes are usually acid-cleaved and their solubility is significantly reduced.

For this reason, in immersion dyeing, a method is used in which the dye is dissolved in hot water in advance and used as a stock solution, which is then injected into the dye solution each time dyeing is carried out. In addition, in the preparation of beam solutions for continuous dyeing and the preparation of printing pastes, which require a concentrated dyeing solution, conventionally only anionic dyes with good low-temperature solubility that can be prepared in acidic concentrated solutions could be used. Anionic dyes made of 1-amino-4(4-acetaminophenyl)ami/anthraquinone-2-sulfonic acid or its salts have excellent properties such as beam uniformity, light resistance, and hue, but they can be used at low temperatures. Solubility is extremely low,
Under acidic conditions, acid precipitation is significant, and even under alkaline conditions, gelation of the aqueous solution occurs at low temperatures.

For this reason, when used for continuous dyeing or textile printing, significant unevenness occurs, so it could only be used for dyeing with a large thickness. The inventors of the present invention have found a solution to the above-mentioned problems.
An anionic dye that does not cause dye precipitation or solution gelation under the conditions of H8-2), facilitates the preparation of dyes for continuous dyeing and textile printing, and can obtain dyed products without uneven spots. I looked at the concoction and put it out.

In the present invention, 1-amino-4(4-acetaminophenyl)aminoanthraquinone-2-sulfonic acid or a salt thereof is an anionic dye represented by the following structural formula (1). (M=day, Na, Li, K, N ratio, etc.) In the present invention, a nonionic activator (HLBIO-20)
is, for example, an alkyl ether, alkyl ester or alkyl phenyl ether of polyethylene glycol, and preferably a condensate of ethylene oxide and nonylphenol, octylphenol or dodecylphenol having an HLB of 12-20.

The composition proportions of the formulations according to the invention are 20-8% by weight of dye (1) and preferably 30-8% by weight of the sodium salt of dye (1).
4% by weight and 20% of anthraquinone-2-sulfosoic acid
8% by weight, preferably 30-6% by weight and 0-16% by weight, preferably 0-14% by weight of a non-ionic active agent.

The formulations of the present invention may optionally contain conventional bulking agents such as dextrin, sucrose, and tin oil emulsion as a dust-scattering agent.

The dye formulations of the invention have excellent low temperature solubility for products made with conventional fillers.

For example, in conventional products, in an aqueous solution of 5 days or more in terms of pure dye, precipitation of the dye and gelation of the solution occur at 2500 ml, and this is even more severe in acidic conditions, whereas the preparation of the present invention In terms of pure dye, the solution maintains stability at room temperature for up to 20 to 30 days, and does not cause dye precipitation or gelation of the solution. Furthermore, in the aqueous solution of the formulation of the present invention, the stability of the dye solution is maintained even under acidic conditions (pH 2) due to the addition of an organic acid, and precipitation of the dye and gelation of the solution do not occur. Therefore, the preparation of the present invention significantly facilitates the preparation of beam solution for continuous dyeing of polyamide fiber materials and the preparation of color paste for textile printing, which could not be achieved satisfactorily even with the use of secondary solubilizers (organic solvents, etc.). , it has become possible to apply this dye (1) to the field of dyeing processing. For example, polyamide carbon
In the continuous dyeing of pets, it is possible to dye deep colors using the pad and steaming methods using this dye mixture for 40 days/day and tartaric acid for 2 nights/day, and it also produces spotless printing on nylon taffeta. You can get anything from light to dark colors. The formulation of the present invention can be used at any step during the dye synthesis process or post-synthesis product production process.
It can be produced by adding anthraquinone-2-sulfonic acid and a nonionic surfactant.

The present invention will be explained below with reference to Examples.

In the text, parts mean parts by weight. Example 1 35 parts of sodium 1-amino-4(4-acetaminophenyl)aminoanthraquinone-2-sulfonate with a pure dye content of 80%, 25 parts of anthraquinone-2-sulfonic acid and 40% of dextrin were mixed in a Nauter mixer. Further, 0.5 part of key oil emulsion was added and mixed as a dust scattering prevention agent to obtain a dye preparation.

40 ml of the resulting dye preparation is dissolved in boiling water and water is added to make 1000 ml.

The dye solution was stable for more than one day and night after being left to cool, and no precipitation of the dye or gelation of the solution was observed. Add 2 tsp of tartaric acid to the dye solution, and after dissolving the rope, pad a polyamide tufted carpet in the solution, and after squeezing, the pick-up rate is 20.
It was steamed for 10 minutes at 100 qC in a steamer at 0%, washed with water, and dried to finish.

A dyed product was obtained which was dyed in a deep clear blue color and had good light fastness. Example 2 35 parts of sodium 1-amino-4(4-acetaminophenyl)aminoanthraquinone-2-sulfonate, 25 parts of anthraquinone-2-sulfonic acid and polyethylene glycol nonylphenyl ether (80% pure dyestuff) A mixture consisting of 25 parts of HLB16) was poured into 3 times the amount of water, kneaded in a decourgator to form a slurry, and then spray-dried to obtain a powder dye preparation.

15 parts of dextrin are added to 85 parts of the resulting powder formulation and mixed in a blender.

Furthermore, 0.5 part of key oil emulsion was added as a dust scattering prevention agent, and the mixture was mixed and finished. 60% of the obtained product formulation was dissolved in boiling water, water was added to make it 1000%, and the dye solution was allowed to cool. Even when the dye solution was allowed to stand for a day and night, no precipitation of the dye or gelation of the solution was observed. Furthermore, the solution stability was good even when 20% of tartaric acid was added.

Further, 4 parts of the product formulation was dissolved in 45 parts of hot water, and then 1 part of tartaric acid was added to dissolve the lily pad.

Claims (1)

[Scope of Claims] 1 1-amino-4(4-acetaminophenyl)aminoanthraquinone-2-sulfonic acid or a salt thereof 20-
80% by weight anthraquinone-2-sulfonic acid 80-20
Anionic dye formulation characterized in that it consists of 0-60% by weight of non-ionic activator (HLB 10-20). 2. A formulation according to claim 1, wherein the nonionic activator is polyethylene glycol alkyl phenyl ether (HLB 12-20).