JPS6278287A - Method for washing colored fiber material by disperse dye - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an effective cleaning method for obtaining a high-quality colored product after coloring a textile material using a reactive dye having a sulfatoethylsulfonyl group.

Conventionally, washing of fiber materials after coloring with a reactive dye having a sulf-1-toethylsulfonyl group has been carried out under neutral or weakly acidic conditions.

However, in this cleaning method, it is extremely difficult to wash and remove unfixed reactive dyes, a batch method requires a long cleaning process, and a continuous cleaning method requires a There was a drawback that the cleaning process was required to be repeated several times using ~12 oven soapers.

Furthermore, in the case of printed fabrics, there is a drawback that hot water contamination due to unfixed reactive dyes is extremely large.

In order to improve these drawbacks, research has focused on soaping agents, such as anionic surfactants, nonionic surfactants, amphoteric surfactants, or mixtures of these soaping agents. However, the current situation is that nothing effective has been found.

The inventors of the present invention have conducted intensive research to solve such problems. As a result, they have developed an efficient cleaning method after coloring textile materials using a reactive dye having a sulf-1-toethylsulfonyl group, and a method for cleaning blank areas in textile printing. As a cleaning method for obtaining high-quality printed fabrics with little contamination, there is a cleaning method in which a compound that reacts preferentially with unfixed reactive dyes having sulfatoethylsulfonyl groups and/or vinylsulfonyl groups is added to an alkaline soaping bath. found to be extremely effective,
This completes the present invention.

The present invention provides a method for coloring a textile material using a reactive dye having a sulfatoethylsulfonyl group and then washing it using an alkaline soaping bath, in which the alkaline soaping bath contains a sulfatoethylsulfonyl group or/and a vinylsulfonyl group. The present invention provides a method for cleaning colored fiber materials, which comprises a compound that reacts preferentially with unfixed reactive dyes having groups.

As the reactive dye having a sulfatoethylsulfonyl group that can be applied to the present invention, Sumifix dye (manufactured by Sumitomo Chemical Co., Ltd., reactive dye) and more preferably a reactive dye having a sulfatoethylsulfonyl group and a monochlorotriazinyl group are used. Sumifix Splat Dye, a functional reactive dye (
(manufactured by Susumu Kagaku Co., Ltd., reactive dye), etc., but are not limited to these.

Furthermore, in the case of dyeing blended fiber materials, these reactive dyes can be used in combination with other types of dyes, such as disperse dyes and acid dyes.

, SO, t* materials include cellulose fibers, polyamide fibers, and blends of these and polyester fibers.

The alkaline agent used in the alkaline soaping bath is not particularly limited, and should be PH9 to 10 for batch-type cleaning, and pIi for continuous-type cleaning.
Those in the range of 9 to 12 are applicable. Examples of such alkaline agents include anhydrous soda carbonate, potassium carbonate, and caustic soda. Usually, anhydrous 81M soda is exemplified.

These alkaline agents are used to achieve the above-mentioned pH, but usually 0 parts by weight per 100 parts by weight of the alkaline soaping bath.
．． 05 to 0.5 parts by weight is used.

The soaping agent added to the alkaline soaping bath is not particularly limited, and anionic surfactants, nonionic surfactants, or amphoteric surfactants can be used. More preferred are anionic surfactants, nonionic surfactants, or mixed soaping agents. The amount of these soaping agents used is not particularly limited, but usually alkaline soaping bath 1001if
It is 0.1 to 0.5ii parts to i parts.

Compounds that preferentially react with unfixed reactive dyes having a sulfate ethylsulfonyl group or/and a vinylsulfonyl group include amines such as diethylamine, ethylenediamine, triethanolamine, diethyltriamine, or amino acids, glyoxal acidic sulfite adducts, Sulfites such as acidic sodium sulfite, sodium sulfite, or their potassium salts, as well as hydroxymethasulfonates, methylpiperazine, ethylpiperazine,
Examples include urotropin, but are not limited to these.

Further, the amount n used may be arbitrary depending on the processing method and dyeing density, but it is usually 0.1 to 20 parts by weight per 100 parts by weight of the alkaline soaping bath.

According to the method of the present invention, when a polyester/cellulose blend product is colored with a disperse dye and a reactive dye and then washed, it is possible to prevent re-staining of the disperse dye under alkaline soaping, and at the same time to prevent recontamination of the disperse dye under alkaline soaping. Recontamination of unfixed reactive dyes, which is accelerated by the process, can be significantly suppressed.

Furthermore, when printing cellulose fibers or their blends with reactive dyes having sulfatoethylsulfonyl groups, the soaping of the present invention is carried out after fixation to obtain high-quality printed products with extremely little hot water staining.

EXAMPLES The present invention will be explained below with reference to Examples, but the present invention is not limited thereto. In the columns, parts and % are parts by weight and Mff1%.

70 parts of the reactive dye shown in 25" dissolved in hot water
Cool to C. To this, 100 parts of 0.1% sodium alginate (manufactured by Koko Food Co., Ltd., glue agent), 0.5 parts of monobasic sodium phosphate
part and water to make a total of 11,000 parts of dye solution.

Next, the above dye solution was padded onto cotton gabardine white cloth at a squeezing rate of 60%, and after intermediate drying, 40° B6 caustic soda 15
A total of 11,000 parts of an alkali solution consisting of 20 parts of anhydrous soda carbonate, 200 parts of anhydrous sodium sulfate, 10 parts of a reduction inhibitor (sodium m-nitrobenzenesulfonate), and water was squeezed using a mangle adjusted to 80%. Apply evenly,
Steam treatment is immediately performed at 105° C. for 80 seconds.

Next, add 8 parts of anionic soaping agent to 1000 parts of the total amount.
parts, 2 parts of anhydrous soda carbonate and 8 parts of triethanolamine
8 having 8 soaping baths (95'C) containing
Finish by cleaning once with an oven soaper in the tank.

In this way, it was possible to efficiently obtain a red dyed product with high fastness, which could only be obtained by repeated washing treatments several times using conventional methods.

Example 2 Sumifix Brilliant Orange 8R Special (Sumitomo Chemical Co., Ltd. product: C, I.

Reactive Orange 16) Dissolve 60 parts in boiling water and cool to 25°C. To this, 40 parts of Sumikalon Red 8-00200% (Sumitomo Chemical Co., Ltd. product: O,1, Disperse Red 185) was added, thoroughly stirred and dispersed, and then 0.1% sodium alginate (Kibun Sword Co., Ltd. product) was added. : 50 parts of thickening agent), 0.8 part of tartaric acid and water were added to prepare a total of 11,000 parts of dye solution.

Next, the above dye solution is padded on a polyester/cellulose (65/85) blend fabric at a squeezing rate of 55%, and after intermediate drying, it is immediately subjected to thermosol treatment for 160 seconds at 210"C. 15 parts of 4o0ne caustic soda, anhydrous carbonic acid. soda 20
11 parts, 200 parts of anhydrous sodium sulfate, 10 parts of a reduction inhibitor (sodium m-nitrobenzenesulfonate), and water.
iJ!000 parts of alkaline liquid to a squeezing rate of 80%! ! l!
Apply it uniformly using a shimmering mangle and immediately steam it for 180 seconds at 105"C.

Next, washing was performed once with a 10r4 oven soaper having a soaping bath (95°C) containing 2 parts of nonionic soaping agent, 2 parts of anhydrous soda carbonate, and 5 parts of crotropin in 11000 parts of total FF. and finish it.

Thus, it was possible to efficiently obtain a scarlet dyeing with high fastness, which could only be obtained by several repeated washing treatments using conventional methods.

Example 8 60 parts of the reactive dye shown in Example 8 are dissolved by hot soaking and added to a Wince dyeing machine in which 20,000 parts of water are added. After putting 1,000 parts of cotton glaze into the dye, 1,000 parts of anhydrous sodium sulfate was added while stirring (rotating).

Next, after raising the temperature of this bath to 60° C., 20 parts of anhydrous soda carbonate is gradually added and dyeing is carried out for 60 minutes.

Next, after performing usual water washing, neutralization, and dipping treatments, soaping was carried out for 110 minutes at 95"C in a soaping bath containing 2 parts of anionic soaping agent, 2 parts of potassium carbonate, and 5 parts of ethylene diamine in 1000 parts of total water. Warm wash (8
Finish by washing at 0°C for 10 minutes) and water.

In this way, a dark blue dyed product with high waxiness, which conventionally could not be obtained without repeating hot water washing for a long time after soaping, was efficiently obtained.

Example 4 Sumifix Black B (Sumitomo Chemical Product 20,
1. Reactive Black 5) Dissolve 60 parts in boiling water and cool to 25°C. To this, 40 parts of Sumikaron Black °8-BF Extra Conc (Sumitomo Chemical Co., Ltd. product: disperse dye) was added, thoroughly stirred and dispersed, and then 4.5% sodium alginate (Kibun Food Co., Ltd. product:
Thickening agent) 500 parts, metal ion sequestering agent (Frewat N) 8
1 part of a reduction inhibitor (sodium m-nitrobenzenesulfonate), 1 part of dibasic sodium phosphate, and water to prepare a textile dyeing paste with a total amount of 1000 parts.

Next, after uniformly applying the above printing dyeing paste to the polyester/cellulose (65/85) blend fabric using a screen printing machine,
Dry at 80°C and immediately perform HT steam treatment at 180°C for 7 minutes. This is followed by treatment in a 40°B sodium misilicate solution at 90-95°C for 116 seconds.

Finally, add 8 parts of nonionic soaping agent to 1000 parts of the total amount.
12 parts, having 4 soaping baths (75"C) containing 2 parts of anhydrous soda carbonate and 10 parts of acidic sodium nitrite.
After cleaning once with the oven soaper in the tank,
By drying with a hot air dryer adjusted to 110° C., a black printed product with high fastness and very little hot water staining was efficiently obtained.

In addition, in the above example, the white water contamination of the printed product treated with the soaping bath in which acidic sodium sulfite was not used was extremely poor.

Claims (1)

[Claims] A method in which a textile material is colored with a reactive dye having a sulfate ethyl sulfonyl group and then washed with an alkaline soaping bath, wherein the alkaline soaping bath contains a reactive dye having a sulfate ethyl sulfonyl group or/and a vinyl sulfonyl group. A method for cleaning colored fiber materials characterized by containing a preferentially reactive compound.