JP3165475B2 - Fiber bleach dyeing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a method for bleaching and dyeing fibers.

[0002]

2. Description of the Related Art Cellulose fibers such as cotton, hemp, rayon, etc. are dyed using a chlorine-based or oxygen-based bleach such as sodium hypochlorite or hydrogen peroxide, after scouring to obtain sharpness. It is a common practice to remove the bleaching agent by reducing, neutralizing, or washing with water after exposing underneath, followed by dyeing. In this method, a great deal of time and energy is required for removing the bleaching agent and the bleaching agent and for the soaping step after dyeing with the reactive dye.

[0003]

The bleaching effect is obtained by bleaching the fiber before dyeing with the reactive dye, and the process is simplified by dyeing in the same bath.
In order to shorten the process, a new method and a bleaching dye for fibers are required to make this possible.

[0004]

Means for Solving the Problems The present inventors have already found a bleaching agent capable of bleaching only the color consisting of impurities in fibers without destroying the dye, and have applied for a patent as a dye bleaching agent and a dye bleaching method. (Japanese Patent Application No. 2-325442), but there are limitations on the dyes that can be used in the method described in this patent.

If the bleaching agent is completely eliminated before dyeing, the effect of the bleaching agent disappears, and the dyeing in the same bath without limitation on the usable dyes, the extraction of the bleaching solution, and the washing of the bleaching agent are performed. As a result of earnest studies, it has been found that a combination of a specific dye bleaching agent and a specific additive can achieve this object, leading to the present invention.

That is, the present invention comprises the following (1) and (2). (1) When dyeing a fiber, the fiber is bleached with a bleach comprising an organic peracid represented by the following general formula (1) or a salt or complex thereof, and subsequently, a salt represented by the following general formula (2) is used. A method for bleach-dyeing a fiber, comprising decomposing a bleaching agent and subsequently performing dyeing without discharging the bath after bleaching. General formula (1)

[0007]

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(Where R is a substituted or unsubstituted alkyl group, allyl group or aralkyl group, and n is a natural number of 1 to 6.) General formula (2) R ¹ X (where R ¹ is a metal ion or X represents a substituted or unsubstituted quaternary ammonium group, and X represents a halogen ion.)

(2) The method for bleach-dyeing fibers according to (1), wherein the fibers are cellulose fibers alone or mixed with other fibers.

Specific examples of the organic peracid or its salt (metal salt or ammonium salt) represented by the general formula (1), which is a dye bleaching agent for fibers of the present invention, include formic acid, peracetic acid, perpropionic acid, Chloroacetic acid, pertrifluoroacetic acid, perbutyric acid, percaprylic acid, perlauric acid, disuccinic acid, diperglutaric acid, diperadipic acid, monopernonanedioic acid, dipernonanedioic acid, monoperdecane Diacid, diperdecandioic acid, monoperdodecandioic acid, diperdodecandioic acid, monoperoundecanoic acid, diperoundecanoic acid, diperphthalic acid, diperterephthalic acid, perbenzoic acid, m-chloro Perbenzoic acid,
2,4-dichloroperbenzoic acid, monoperphthalic acid, magnesium monoperphthalate, monopersuccinic acid, magnesium monopersuccinate, monopermaleic acid, calcium monopermaleate, monoperglutaric acid, monoperglutarate Magnesium acid, pertrimellitic acid, perpyromellitic acid and the like. Particularly preferred are magnesium monoperphthalate and diperdodecandioic acid.

The concentration of the bleaching agent in the bleaching bath is preferably 0.05 to 10% owf, particularly preferably 0.3 to 5% owf in terms of active oxygen content.

The pH is preferably from 1 to 14, particularly preferably from 2 to 10. The temperature of the bleaching bath is preferably 20-1.
10 ° C is particularly preferably 40 to 90 ° C.

The metal which becomes the metal ion of the salt that decomposes the bleach is sodium, potassium, lithium, copper, aluminum, magnesium, calcium, zinc, barium,
Substituted or unsubstituted quaternary ammonium groups of salts that decompose bleach, such as tin, iron, cobalt, nickel, etc. include ammonium, monomethylammonium, dimethylammonium, trimethylammonium, tetramethylammonium, An ammonium group such as an ethylammonium group, a diethylammonium group, a triethylammonium group, a monomethyltriethylammonium group, and a tetraethylammonium group, and an ammonium group which may be substituted with a higher alkyl group, an allyl group or an aralkyl group. Halogen ions of salts that decompose bleach are fluorine ions, chloride ions, bromine ions,
Iodine ion. The salt of a quaternary ammonium group and a halogen ion may be formed from a substituted or unsubstituted amine and a halogen acid. Particularly preferred salts are sodium chloride, potassium bromide, ammonium chloride and the like.

In decomposing the bleach, the concentration of the salt used is 0.05 to 10% by weight, particularly preferably 0.3 to 5% by weight.

In decomposing the bleaching agent, the temperature used is 20 to 110 ° C., preferably 40 to 90 ° C.

The dyes applicable to the present invention include various commercially available dyes, particularly reactive dyes, and the amount used and the dyeing method are determined in accordance with the standards for those commercially available products. Examples of typical reactive dyes include Kayashion (Nippon Kayaku), Remazol (Hoechst), Procion (ICI), Daimira (Mitsubishi Kasei), Sermazol (Mitsui Toatsu Chemical), Sumifix (Sumitomo Chemical), Cibacron. (CIBA), Levafix (Bayer), Fixazole (Daito Chemical) and the like.

The bleaching agent and the salt capable of decomposing the bleaching agent of the present invention are preferably pH adjusters for keeping the pH in use at the optimum pH range of the active ingredient, for example, acetic acid, sodium metasilicate, sodium carbonate or sodium hydrogen carbonate. Is 0
40%, a metal ion sealant for suppressing catalytic decomposition of active ingredients by metal ions in water, such as Kayachelator C
-1000, preferably ethylenediaminetetraacetic acid or Dequest 2010 (manufactured by Mitsubishi Monsanto Kasei Co., Ltd.) at 0 to 1%, and a dyeing aid such as sodium chloride or sodium sulfate preferably at 0 to 98% to improve handling and stability. For example, water, an organic solvent, celite or ultrafine anhydrous silica may be contained in an amount of 0 to 100 parts per part of the bleaching agent and / or 1 part of the salt that decomposes the bleaching agent.

The bleaching agent and the salt for decomposing the bleaching agent of the present invention can be in any form such as a solution, a suspension, a paste or a powder depending on the dyeing method.

[0019]

[Operation] If the dye bleaching agent of the present invention and the salt that decomposes the bleaching agent are used, bleaching is performed first in dyeing and bleaching of the fiber, and after bleaching, the bleaching agent is decomposed to eliminate the discharging operation or the rinsing operation. It is possible to stain. It is possible to obtain a bleaching effect equivalent to or more than that of the method of dyeing after ordinary under-exposure.

[0020]

The present invention will now be described in more detail with reference to the following Examples, which are for illustrative purposes only and do not limit the present invention.

First, in Example 1, the bleaching agent of the present invention was compared with hydrogen peroxide (Comparative Example 1-1) and sodium hypochlorite (Comparative Example 1-2), which are the most common bleaching agents. Was evaluated for its bleaching ability and its effect on dyeing.

In Example 2, an example using another kind of dye was shown. Examples of blending are shown in Examples 3 and 4.

Embodiment 1 FIG. An undyed cotton cloth which has not been exposed after scouring (hereinafter referred to as an undyed cloth) is first placed in a bath having the composition shown in Examples 1-1 to 4 below.
Bleached by processing at a temperature of 20 ° C for 20 minutes. Subsequently, 10 g / l of sodium chloride was added without discharging the bath, and the temperature was raised to 90 ° C.
Treated for 0 minutes. Further, the temperature was lowered to 80 ° C. without draining the bath, and a dye and anhydrous sodium sulfate were added among the following dyeing agents, followed by treatment at the same temperature for 10 minutes. Subsequently, sodium carbonate was added and staining was performed at the same temperature for 1 hour. Rinse after dyeing,
Then, it was washed with a soap water at 98 ° C. for 15 minutes. The ratio of the fibers in the bath to the bleaching and dyeing baths is 1:15.

Kayashion Blue E-CN 2% o. w. f. Anhydrous sodium sulfate 100 g / l sodium carbonate 20 g / l

Example 1-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l (Metal ion sealant manufactured by Nippon Kayaku Co., Ltd.) 40% peracetic acid 2 g / L

Example 1-2 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l 27% diperdodecandioic acid 2.3 g / l

Example 1-3 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l H-48 15.6 g / l (manufactured by Nippon Peroxide Co., Ltd., magnesium monoperphthalate, active oxygen 4.0 g / l) 9%)

Example 1-4 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l Perbenzoic acid 1 g / l

Comparative Example 1 The undyed cloth was bleached in a bleaching bath having the composition shown in Comparative Examples 1-1 and 1-2 in the same manner as in Example 1 under the same conditions as in Example 1. Subsequently, using the same staining agent as in Example 1, a staining treatment was performed under the same conditions as in Example 1.

Comparative Example 1-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 30% hydrogen peroxide 2.7 g / l

Comparative Example 1-2 12% sodium hypochlorite 0.9 g / l

Comparative Example 2 The undyed cloth is bleached under the same conditions as in Example 1-2, and subsequently dyed under the same conditions as in Example 1 using the same dyeing agent as in Example 1 without performing salt treatment at 90 ° C. Processing was performed. (Japanese Patent Application No. 2-3
25442. )

[0033] Bleaching ability ○: Sufficient bleaching ability △: Insufficient bleaching ability ×: Almost no bleaching ability XX: No bleaching ability at all Clarity ○: Practical use △: Slight discoloration ×: Severe discoloration × ×: marked color fading

Comparative Example 3 The undyed fabric was first treated and bleached in a bath having the following composition at a temperature of 80 ° C. for 20 minutes. Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 30% hydrogen peroxide 2.7 g / l After bleaching, the bath is drained and the textile material is carefully rinsed with cold water, Thereafter, treatment was carried out at a temperature of 80 ° C. for 10 minutes in a bath containing the dye and anhydrous sodium sulfate in the following dyeing chemical composition. Subsequently, sodium carbonate was added, and staining was performed at the same temperature for 1 hour.

Kayashion Blue E-CN 2% o. w. f. After dyeing, anhydrous sodium sulfate 100 g / l sodium carbonate 20 g / l was rinsed, and then washed with 98 ° C. soapy water for 15 minutes. The ratio of fiber to bleaching bath and dyeing bath was 1:15. The usual excellent dyeings are obtained.

Embodiment 2 FIG. The undyed fabric was first treated in a bath having the composition shown in Examples 2-1 to 3 below at a temperature of 80 ° C. for 30 minutes and bleached. Subsequently, 10 g / l of potassium bromide (KBr) was added without draining the bath.
The temperature was raised to 0 ° C and the treatment was performed for 20 minutes. Subsequently, the temperature was raised to 60 ° C. without draining the bath, and the dyeing agent and anhydrous sodium sulfate were added to the next dyeing agent, followed by treatment at the same temperature for 10 minutes.
Subsequently, crystalline trisodium phosphate was added and staining was performed at the same temperature for 1 hour. After dyeing, it was carefully washed with water, dried in the shade and dried.
The ratio of the fiber in the bath to the bleaching bath and the dyeing bath was 1:15.
It is. Diamond Mira Turkey Blue G 2% o. w. f. Anhydrous sodium sulfate 50 g / l crystalline trisodium phosphate 20 g / l

Example 2-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 40% peracetic acid 2 g / l

Example 2-2 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l 27% diperdodecandioic acid 2.3 g / l

Example 2-3 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l H-48 15.6 g / l

Comparative Example 4 The undyed cloth was bleached in the same manner as in Example 2 in a bleaching bath having the composition shown in Comparative Examples 4-1 and 4-2 under the same conditions as in Example 2. Subsequently, using the same staining agent as in Example 2, a staining treatment was performed under the same conditions as in Example 2.

Comparative Example 4-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 30% hydrogen peroxide 2.7 g / l

Comparative Example 4-2 12% sodium hypochlorite 0.9 g / l Bleaching ability ○: Sufficient bleaching ability △: Insufficient bleaching ability ×: Almost no bleaching ability XX: No bleaching ability at all Clarity ○: Practical use △: Slight discoloration ×: Severe discoloration × ×: marked color fading

Example 3 A 50:50 blend of undyed cotton and acrylic (hereinafter referred to as undyed acrylic blended fabric) was first prepared at 98 ° C. for 1 hour in a bath of the following dyeing agent composition. Stained. Kayacryl Light Blue 4GSL-ED 1% o. w. f. Acetic acid 0.5 g / l

Then, the temperature was lowered to 80 ° C. without discharging the bath, and the mixture was treated in a bath having the composition shown in Examples 3-1 to 3 below at a temperature of 80 ° C. for 20 minutes to bleach. Subsequently, 10 g / l of sodium chloride was added without draining the bath, and 90 ° C.
And heated for 20 minutes. Subsequently, the temperature was lowered to 80 ° C. without draining the bath, and a dye and anhydrous sodium sulfate were added to the next dyeing agent, followed by treatment at the same temperature for 10 minutes. Subsequently, sodium carbonate was added and staining was performed at the same temperature for 1 hour. Kayashi On Turkey EA 1% o. w. f. Anhydrous sodium sulfate 100 g / l Sodium carbonate 20 g / l After dyeing, washing with water and then 80 g of Demol N 2 g / l
(A product of Kao Corporation) for 15 minutes. The ratio of the fibers in the bath to the bleaching and dyeing baths is 1:15.

Example 3-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 40% peracetic acid 2 g / l

Example 3-2 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l 27% diperdodecandioic acid 2.3 g / l

Example 3-3 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l H-48 15.6 g / l

Comparative Example 5 The undyed acrylic blended fabric is dyed with Kayacryl Light Blue 4GSL-ED in the same manner as in Example 3 and in a bleach bath having the composition shown in Comparative Examples 4-1 and 4-2, under the same conditions as in Example 3. Bleached. Subsequently, a staining treatment was performed using the same staining agent as in Example 3 under the same conditions as in Example 3.

Comparative Example 5-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 30% hydrogen peroxide 2.7 g / l

Comparative Example 5-2 12% sodium hypochlorite 0.9 g / l Bleaching ability ○: Sufficient bleaching ability △: Insufficient bleaching ability ×: Almost no bleaching ability XX: No bleaching ability at all Clarity ○: Practical use △: Slight discoloration ×: Severe discoloration × ×: marked color fading

Embodiment 4 FIG. A 50:50 blend of undyed cotton and polyester (hereinafter referred to as undyed polyester blend) was first dyed in a pressure vessel at 130 ° C. for 1 hour in a bath of the following dyeing agent composition. Kayaceron Turkish E-GL 1% o. w. f. Acetic acid 0.45 g / l Sodium acetate (trihydrate) 0.55 g / l

Next, the temperature was lowered to 80 ° C. without discharging the bath, and the mixture was treated in a bath having the composition shown in Examples 4-1 to 3 below at a temperature of 80 ° C. for 20 minutes to bleach. Subsequently, 10 g / l of sodium chloride was added without draining the bath, and 90 ° C.
And heated for 20 minutes. Subsequently, the temperature was lowered to 80 ° C. without draining the bath, and a dye and anhydrous sodium sulfate were added to the next dyeing agent, followed by treatment at the same temperature for 10 minutes. Subsequently, sodium carbonate was added and staining was performed at the same temperature for 1 hour. Kayashi On Turkey EA 1% o. w. f. After dyeing with anhydrous sodium sulfate 100 g / l sodium carbonate 20 g / l, it was washed with water, and then washed with soap water at 98 ° C. for 15 minutes. The ratio of the fibers in the bath to the bleaching and dyeing baths was 1:
Fifteen.

Example 4-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 40% peracetic acid 2 g / l

Example 4-2 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l 27% diperdodecandioic acid 2.3 g / l

Example 4-3 Sodium metasilicate 4 g / l Kayachelator C-1000 10 g / l H-48 15.6 g / l

Comparative Example 6 The undyed polyester blended fabric is first placed in a pressure vessel and then into a bath of the following dyeing agent composition.
Stained for 1 hour at 0 ° C. Kayaceron Turkish E-GL 1% o. w. f. Acetic acid 0.45 g / l Sodium acetate (trihydrate) 0.55 g / l Then, the temperature was lowered to 80 ° C. without draining the bath, and the same as in Example 4, Comparative Example 5-1 and Comparative Example 5-2 Bleaching was carried out in a bleaching bath of the indicated composition under the same conditions as in Example 4. Subsequently, using the same staining agent as in Example 4, a staining treatment was performed under the same conditions as in Example 4.

Comparative Example 6-1 Sodium metasilicate 4 g / l Sodium carbonate 20 g / l Kayachelator C-1000 10 g / l 30% hydrogen peroxide 2.7 g / l

Comparative Example 6-2 12% sodium hypochlorite 0.9 g / l Bleaching ability ○: Sufficient bleaching ability △: Insufficient bleaching ability ×: Almost no bleaching ability XX: No bleaching ability at all Clarity ○: Practical use △: Slight discoloration ×: Severe discoloration × ×: marked color fading

[0059]

The use of the dye bleach of the present invention reduces the number of discharge operations and / or washes conventionally required between the fiber bleaching and dyeing steps and saves water and heat for heating. Saving the time required for cleaning and / or draining,
Improvements in water treatment can be obtained.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) D06P 5/00 D06B 21/00 D06L 3/02

Claims (2)

(57) [Claims] 1. When dyeing a fiber, the following general formula (1)
, Bleaching with a bleach comprising an organic peracid or a salt or complex thereof, followed by decomposition of the bleach using a salt represented by the following general formula (2), and without discharging the bath after bleaching. Bleaching and dyeing of fibers, characterized by successively dyeing. General formula (1) (However, R represents a substituted or unsubstituted alkyl group, allyl group or aralkyl group, and n represents a natural number of 1 to 6.) General formula (2) R ¹ X (where R ¹ is a metal ion or substituted or unsubstituted) X represents a substituted quaternary ammonium group, and X represents a halogen ion.) 2. The method for bleach-dyeing fibers according to claim 1, wherein the fibers are cellulose fibers alone or mixed with other fibers.