JPH10310791A - Decoloration-preventing agent for colored fiber material, detergent composition containing the agent and used for colored fiber material, and washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject preventing agent not causing the discoloration or fading, namely color change or color migration, of a colored fiber material comprising, e.g. protein fibers such as wool on a washing treatment, such as a washing treatment using a washing machine, by using a specific aluminum compound. SOLUTION: This decoloration-preventing agent comprises an aluminum halide such as aluminum chloride, etc. Therein, the aluminum halide is preferably contained in an amount of about 0.5-30 wt.% in the agent, and further dissolved in a washing bath in a concentration of <=0.01 wt.%. A surfactant such as a nonionic surfactant, an anionic surfactant or a cationic surfactant may together be used with the aluminum halide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel decolorization inhibitor for colored fiber materials which does not cause discoloration or dye transfer when the colored fiber materials are washed, and for a colored fiber material containing the agent. The present invention relates to a cleaning composition and a cleaning method.

[0002]

BACKGROUND OF THE INVENTION Fibers constituting clothing to be washed include cellulose fibers such as cotton and hemp, protein fibers such as wool and silk, and synthetic fibers such as nylon, polyester and acrylic.

[0003] Hair is a fiber having high hygroscopicity, moisture release, elasticity, plasticity, etc., and excellent in moisturizing and setting properties, and is soft, hard to wrinkle, and low in crystallinity. It is used for lining, kimono fabric, underwear, hand-knitted wool, blanket rugs and hats.

However, when a mechanical force is applied in water to the garment, the fibers are entangled with each other and the fibers are entangled (felted), the surface cells are destroyed, the gloss decreases, and yellowing is accelerated by light. It has the disadvantage of being easy to do.

[0005] In washing clothes, the mechanical power is reduced,
It is said that short-time washing with a neutral detergent at a temperature of 40 ° C. or less is good, but it is necessary to pay attention to the color fading at 30 ° C. or less, and to wash lightly with dark dyed products. For washing of heavily soiled hair, washing with a weak alkaline detergent having weakened mechanical power at 30 to 40 ° C. for a short time or brush washing with a soft brush is suitable.

[0006] As described above, dry cleaning is considered to be the most suitable for the garment which is easily discolored, contracted and loses its shape. However, in dry cleaning of garments, oily stains are relatively easily removed by a solvent, but insoluble solid particle stains easily cause recontamination, and water-soluble stains are difficult to remove. If the stain is not removed, a wet cleaning is performed using a neutral detergent according to a low-to-medium temperature laundry with a weak mechanical force.

[0007] Silk is composed of a highly crystalline fibroin protein whose constituent amino acids are different from hair, and is a delicate fiber having excellent hygroscopicity, moisture release, elasticity, plasticity, elegant luster and unique feel. Yes, since ancient times, as high-grade textile fibers, kimono fabrics, women's and children's clothing fabrics, obi, lining, underwear,
Used in ties, mufflers, shawls, scarves, and cotton.

[0008] In the washing of silk garments, as in the case of the woolen garments, short-time washing at 40 ° C or less, neutral washing, gripping washing, and pressing washing with a neutral detergent having reduced mechanical strength are performed.

However, silk clothing is liable to be discolored in washing of silk clothing such as home washing, washing, fresh washing, and wet cleaning with swelling of the fiber, and is affected by mechanical action in the washing process and frictional action between cloths. In addition, fluffy or lump-like lint called lousiness occurs on the cloth, which has a disadvantage in that the appearance characteristics are significantly lost.

[0010] Therefore, it is considered that dry cleaning using an organic solvent instead of water is suitable for washing silk garments, similar to fur clothing.

In general, aesthetic and equipment performance play a large role in the purpose of clothing. Therefore, even in the case of clothing having properties that can be practically used as fibers and fabrics, the deterioration of surface and appearance properties mainly such as discoloration, fading, decrease in whiteness, yellowing, etc. is a cause of clothing disposal. ing.

On the other hand, the cleaning performance of a washing bath against stains on clothing is, on the other hand, the solubility of dyes and processing agents on fibers,
Closely related to releasability. Therefore, when washing a dyed product, even in the case of cellulose fiber clothing, it is generally necessary to use a washing method that considers discoloration and discoloration rather than removing stains.

That is, as described above, it is desirable to use a neutral detergent at a low temperature and with a small mechanical force, as described above.

[0014] As described above, clothing made of hair or silk is easily discolored when washed with water. The causes are considered to be as follows.

Protein fibers such as hair and silk have amino groups (—NH ₂ ) and carboxyl groups (—CO ₂ ) in their chemical structures.
OH), an isoelectric point exists at a certain pH,
Its isoelectric point is around pH 4-6.

Accordingly, hair, silk and the like have different charges depending on the pH of the aqueous solution, and are positive (-N
In H ₂ · H ^+), also negative in the above the isoelectric point (-COO ^over)
Shows the amphoteric nature of charging.

In this state, if a dye having an opposite charge exists in this state, the dye is dyed by + and-ionic bonds (salt-forming bonds). Many are used.

Thus, from the viewpoint of the mechanism of dyeing hair or silk with such an acid dye, dyeing of animal hair or silk with an acid dye generally has a low wet fastness and requires only washing with water.
The problem of discoloration and migration is built in.

As described above, in the washing of dyed products, especially clothing made of protein fibers such as hair and silk,
It is said that special attention must be paid to discoloration and fading, and as described above, there is a problem in that a method that sacrifices detergency is used. At present, there is a need for new solutions to prevent fading.

[0020]

SUMMARY OF THE INVENTION The present invention provides a method for cleaning
Provided is a novel anti-decoloring agent, a detergent composition, and a cleaning method that do not cause discoloration or discoloration to colored fiber materials made of protein fibers such as hair and silk, that is, do not cause discoloration or migration. The purpose is to do so.

[0021]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, in washing a colored fiber material made of protein fibers such as hair or silk, the washing was carried out. It has been found that such a problem can be solved even in washing machine washing or immersion washing by using a specific aluminum compound, and the present invention has been completed.

In the present invention, when a colored fiber material made of protein fiber such as hair or silk is washed, a discoloration preventing agent made of aluminum halide is used, so that the material is discolored or discolored, that is, discolored or transferred. It is characterized by preventing dyeing.

That is, the present invention is as follows.

(1) An antihalation agent for a colored fiber material comprising aluminum halide (2)
A cleaning composition for a colored fiber material, comprising 5 to 30% by weight.

(3) When washing the colored fiber material,
A method for cleaning a colored fiber material, comprising adding 0.01% by weight or more of the decolorizing inhibitor for a colored fiber material according to the above (1) to a cleaning bath.

In the present invention, the term "decolorization inhibitor" means a color fading or dye transfer inhibitor.

According to the present invention, the problem of discoloration and transfer of a colored fiber material, such as hair or silk, which is liable to cause discoloration and transfer, even when washed by a usual washing method, is solved. It has a special effect of not causing any, and in the cleaning of colored fiber material composed of protein fibers such as hair and silk, a special cleaning method is usually required, but according to the present invention, No special washing method is required, and in that normal washing machine washing became possible,
Very valuable.

Examples of the conventional use of an aluminum compound as a cleaning agent include, for example, for the purpose of improving the reduction of the foaming power of the granular detergent, improving the solubility in cold water, and reducing the turbidity of the cleaning solution and the rinsing solution. JP-A-60-8400, JP-A-60-135498, JP-A-63-1610
No. 82) for the purpose of activating the chelating action of a dishwasher detergent by citric acid (JP-A-63-99295).
JP-A No. 7-145400), and for the purpose of preventing shrinkage of fibers such as wool, animal hair, silk and the like in washing with water and not reducing the texture (JP-A-7-145400).

On the other hand, the present invention uses a specific aluminum compound when washing a colored fiber material composed of protein fibers such as hair and silk, thereby discoloring or discoloring the clothing, that is, discoloration or transfer. It is characterized by preventing dyeing, and is completely different from the action of the conventional aluminum compound described above.

As described above, the effect of the aluminum halide of the present invention is completely different from that of the conventional aluminum compound, as can be seen from the test results in Table 1 below. Can not be attained at all.

Thus, it can be seen that the action of the aluminum halide of the present invention is not due to mere aluminum ions.

As described above, as a means for preventing discoloration and fading of a colored fiber material made of protein fibers such as hair and silk during washing, attention has been paid to a specific compound, and the present invention is intended to solve the problem. This is the first time, and the solution itself is beyond conventional common sense.

By employing a specific aluminum compound in the above-mentioned colored fiber material composed of protein fibers such as hair and silk in the present invention, for example, the washing liquid for colored clothing,
In particular, the cause of preventing the discoloration of the material was prevented without a decrease in the detergency, but it has not been elucidated yet, but in the present invention, it is likely that the aluminum halide used in the present invention is the protein and dye constituting the fiber. It is presumed that the bonding is stronger and the two-sided action of promoting the detachment of contaminants is exhibited.

Further, in the present invention, there is no particular decrease in the detergency, which is different from the conventional method for cleaning a dyed product by a weak mechanical force. It is considered that this is one of the factors.

As described above, it can be seen that the fact that aluminum halide is selected as the decolorizing inhibitor for the colored fiber material in the present invention has a special significance.

Hereinafter, the present invention will be described in more detail.

The aluminum halide used as the decolorizing inhibitor of the present invention includes aluminum chloride, aluminum bromide,
Aluminum iodide, aluminum fluoride and the like;
One or more of these compounds can be used, but it is particularly preferable to use aluminum chloride.

The content of the aluminum halide in the detergent is 0.5 to 30% by weight, particularly preferably 0.5 to 30% by weight.
It is in the range of 20% by weight. If it is less than 0.5% by weight, the intended purpose cannot be achieved, and if it exceeds 30% by weight, it is useless.

When the detergent composition of the present invention is dissolved in a washing bath, the concentration of aluminum halide is 0.0
The content is preferably 1% by weight or more.
0.5% by weight is sufficient. If it is less than 0.01% by weight,
Sufficient discoloration and dye transfer prevention effects cannot be obtained.

The washing method to which the present invention can be applied includes washing machine washing, immersion washing and the like.

Washing machine washing means that water is supplied to the washing machine,
This is a method in which slight stirring and stopping are repeated during washing. For example, a hand-washing course for the Aizumago (NA-F45Y2) manufactured by Matsushita Electric Industrial Co., Ltd., and a hot water story (NW-7S) manufactured by Hitachi, Ltd.
2) Fashionable courses and the like.

Further, it refers to a dry mark garment method in which water is supplied to a washing machine and water is circulated by a pump during washing, or a very small amount of stirring and stopping are repeated. For example, a dry course of Aizumago (NA-F70VP1) manufactured by Matsushita Electric Industrial Co., Ltd., a dry course of Rinse King (ASW-70Z2) manufactured by Sanyo Electric Co., Ltd., a dry course of quick-cleaning power (ES-SS75) manufactured by Sharp Corporation and Toshiba Corporation New and fast galaxy (AW-60X8
(C)) dry course and the like.

Next, as the immersion cleaning, a method of immersing in a tub or the like for cleaning and the like can be mentioned.

The surfactant in the composition of the present invention includes the following nonionic surfactants, anionic surfactants,
A cationic surfactant or the like is used.

The nonionic surfactant has a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms, and the preferred average number of moles of ethylene oxide added is 6 to 20.
12, particularly preferably in the range of 7-10.

In the present invention, the content of the nonionic surfactant is preferably 0.5 to 50% by weight, particularly preferably 1 to 40% by weight.

Examples of the anionic surfactant include the following.

1) an alkylbenzene sulfonate having 8 to 16 carbon atoms 2) an olefin sulfonate having 10 to 20 carbon atoms 3) an alkane sulfonate having 10 to 20 carbon atoms 4) an alkyl group having 10 to 20 carbon atoms Has an average of 0.
5-8 moles of polyoxyethylene alkylphenol ether sulfate to which ethylene oxide is added 5) α-sulfofatty acid ester salt having an alkyl group having 10 to 20 carbon atoms Preferred anionic surfactant in the detergent composition of the present invention is It is a linear alkylbenzene sulfonate. The preferred content of the anionic surfactant is in the range of 0.5 to 10% by weight, particularly preferably 1 to 5% by weight.

As the cationic surfactant, the following chemical formula 1
Of the general formula (1), (2) or (3)
Grade ammonium salt, or

Embedded image (R ₁ , R ₂ , R ₆ , R ₇ : an alkyl group having 6 to 24 carbon atoms,
An alkyl group or an alkenyl group having 8 to 25 carbon atoms including an alkenyl group, a β-hydroxyalkyl group, or a splitting group split by an ester group, an amide group, or an ether group; R ₃ , R ₄ , R ₅ : carbon An alkyl group or hydroxyalkyl group of formulas 1 to 3, a benzyl group or a group represented by the following general formula (4);

Embedded image (U: the number of 1 to 3) t: the number of 2 or 3; X: a halogen or a monoalkyl sulfate having an alkyl group having 1 to 3 carbon atoms), an imidazo represented by the following formula (5) And the like.

[0050]

Embedded image (R ₁₆ : an alkyl group or alkenyl having 8 to 25 carbon atoms including an alkyl group, an alkenyl group or a β-hydroxyalkyl group having 6 to 24 carbon atoms, or a splitting group split by an ester group, an amide group or an ether group. Group; R
₁₇ : an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group or a group represented by the following general formula (6) or (7);

Embedded image (V, w: each represents a number of 1 to 3) X: a halogen or a monoalkyl sulfate having an alkyl group having 1 to 3 carbon atoms) The preferred cationic surfactant in the detergent composition of the present invention is: It is a mono long chain alkyltrimethylammonium salt.

In the present invention, the content of the cationic surfactant is preferably 0.5 to 10% by weight, particularly preferably 1 to 5% by weight.

The present invention provides, in addition to the above components, higher fatty acids, organic acid salts such as citrate, phthalate, malonate,
Polyvalent carboxylic acids such as malate, tartrate, fumarate, etc., inorganic acid salts such as phosphates, anti-redeposition agents such as polyethylene glycol or carboxymethyl cellulose, viscosity reducing agents such as lower grades such as ethanol and isopropanol. Alcohols, glycols such as ethylene glycol and propylene glycol, hydrotropes such as urea, benzenesulfonate, toluenesulfonate, xylenesulfonate and benzoate, emulsifiers such as polyvinyl acetate and vinyl styrene acetate Polymers, polystyrene and the like can also be blended. In addition, a fluorescent dye, a fragrance, a pigment, an enzyme, and the like can be added as needed.

The present invention is a cleaning composition and a cleaning method for clothing such as hair and silk, but can be naturally applied to other clothing. For example, clothing made of cellulose fibers such as cotton and hemp, clothing made of chemical fibers such as rayon, polyester, nylon, acrylic, polyurethane and vinylon, and clothing made of blended fibers thereof can be washed.

[0054]

Now, the present invention will be described in further detail with reference to Examples, but it should be understood that the present invention is by no means restricted to such specific Examples. The performance of the cleaning method was evaluated according to the following test method.

(1) Discoloration evaluation method Silk fiber was 100% silk purchased from TOMATO.
The color tone used was that of wine red. This wine red silk fiber is cut into a size of 2 cm × 2 cm, and a white background silk fiber (for JIS dyeing fastness test) 8 cm × 6 cm
And place in a 200 ml beaker. After applying a weight of 50 g on the silk fiber, 50 ml of a solution in which 0.13 g of the detergent composition is dissolved is poured. 20 ° C without stirring
After leaving for 3 hours, the cloth was taken out, rinsed twice for 30 seconds, and air-dried. 1.3 g of the detergent composition
Was carried out in the same manner as above. The state of the color transferred to the white silk fiber was subjected to a sensory evaluation according to the following criteria.

：: No color transfer (equivalent to the original white silk fiber) Δ: Slight color transfer is observed X: Color transfer is severely observed (2) Method for evaluating discoloration of real clothes ) Mellane, a 100% silk blouse made by Tandans, was used.

The washing of the washing machine was performed using a fully automatic washing machine (NA-F70Y6 manufactured by Matsushita Electric Industrial Co., Ltd.). The washing conditions were as follows: a hand washing equivalent flow course, a water amount of 33 L, a water temperature of 25 ° C., a washing time of 3 minutes, and a rinsing time. 1 minute x 2 times, dehydration time was 40 seconds. 44 g of the detergent composition was added.

For the immersion cleaning, a washing tub is used.
Water volume 5L, water temperature 25 ° C, washing time 15 minutes, rinsing time 1
Minutes × 2 times, and the dehydration time was 15 seconds. The cleaning composition is 13
g was added, and the garment was allowed to stand without applying mechanical force such as stirring during immersion washing.

In each of the washing machine washing and the immersion washing, a drying treatment was carried out by a dry iron immediately after dehydration.

After the ironing, the state in which the color and pattern of the garment were transferred to other portions was subjected to a sensory evaluation according to the following criteria.

：: No color transfer Δ: Slight color transfer X: Severe color transfer observed (3) Detergency 0.5 g of L-histidine hydrochloride (monohydrate), 5 g of sodium chloride, monophosphate 2.2 g of sodium and 0.1 g of a dye (Acid Yellow 141) were dissolved in distilled water, and about 15 ml of N / 10 sodium hydroxide solution and distilled water were added thereto to adjust the pH to 5.5 and the total volume to 1 L. This solution was dropped on Mellane, a 100% silk blouse manufactured by Tandans Co., Ltd., and air-dried to obtain a stained cloth.

The washing method is in accordance with the method for evaluating discoloration.

The state of the stained cloth from which the coloring substances had been removed was subjected to a sensory evaluation according to the following criteria.

：: Dirt has been removed. Δ: Slight dirt remains. X: Dirt remains remarkable.

Example 1 Aluminum chloride 5.0 as a decolorizing inhibitor
20% by weight of a nonionic (p = 9) surfactant (alcohol ethoxylate with an average of 9 moles of ethylene oxide added to 1 mole of a secondary alcohol having a total carbon chain length of 12 to 14); A detergent composition was prepared in which the remainder consisted of water. 0.13 g of this detergent composition was dissolved in water to make 50 ml (aluminum chloride concentration: 0.013% by weight). A discoloration test of the silk fiber was performed.

[0065]

EXAMPLE 2 A detergent composition comprising 20% by weight of aluminum chloride, 20% by weight of a nonionic (p = 9) surfactant and the balance water was prepared as a decolorizing inhibitor, and 0.13 g of the detergent composition was prepared. Was dissolved in water to make 50 ml (aluminum chloride concentration: 0.052% by weight), and a silk fiber discoloration test was performed by the above-described method for evaluating discoloration.

[0066]

Example 3 Aluminum chloride 0.5 as decoloring inhibitor
% Of a nonionic (p = 9) surfactant and the balance of water were prepared to prepare a detergent composition, and 1.3 g of this detergent composition was dissolved in water to obtain 50 ml (aluminum chloride concentration of 0). 0.013% by weight), and the color loss test of the silk fiber was performed by the above-mentioned method for evaluating color-falling property.

[0067]

Example 4 A detergent composition comprising 20% by weight of aluminum chloride as a decolorizing inhibitor, 20% by weight of a nonionic (p = 9) surfactant and the balance water was prepared, and 1.3 g of this detergent composition was prepared. Was dissolved in water to make 50 ml (aluminum chloride concentration: 0.52% by weight), and a silk fiber discoloration test was performed by the above-described method for evaluating discoloration.

[0068]

Comparative Example 1 Aluminum Chloride 0.1 as Decoloring Prevention Agent
% Of a nonionic (p = 9) surfactant and the balance of water were prepared to prepare a detergent composition, and 1.3 g of this detergent composition was dissolved in water to obtain 50 ml (aluminum chloride concentration of 0). .0026% by weight), and a color loss test of the silk fiber was carried out by the above-mentioned method for evaluating color discoloration.

[0069]

Comparative Example 2 A detergent composition comprising 20% by weight of a nonionic (p = 9) surfactant and the balance water was prepared without using the decolorizing inhibitor of the present invention. 13
g was dissolved in water to make 50 ml (aluminum concentration: 0% by weight), and the color loss test of the silk fiber was carried out by the above-described method for evaluating color-fall properties.

[0070]

Comparative Example 3 A detergent composition was prepared in which 5.0% by weight of aluminum sulfate, 20% by weight of a nonionic (p = 9) surfactant and 20% by weight of water were used in place of the decolorization inhibitor of the present invention. 0.13 g of this detergent composition is dissolved in water and 50 m
1 (aluminum sulfate concentration 0.013% by weight)
According to the method for evaluating discoloration described above, a discoloration test of silk fibers was performed.

[0071]

COMPARATIVE EXAMPLE 4 Instead of the decolorizing agent of the present invention, 5.0% by weight of sodium aluminum sulfate, nonionic (p = 9)
A detergent composition comprising 20% by weight of a surfactant and the balance of water was prepared, and 0.13 g of this detergent composition was dissolved in water to obtain 50 ml (sodium aluminum sulfate concentration 0.0%).
13% by weight) according to the method for evaluating discoloration described above.
A discoloration test of the silk fiber was performed.

The test results are shown in Table 1 below.

[0073]

[Table 1] From the above results, it can be seen that the use of a specific amount of aluminum chloride as the decolorization inhibitor of the present invention has an excellent effect on discoloration.

[0074]

EXAMPLE 5 10% by weight of aluminum chloride as a decolorizing inhibitor, nonionic (p = 9) surfactant (an average of 9 moles of ethylene oxide per mole of a secondary alcohol having a total alkyl chain length of 12 to 14) 20% by weight of an alcohol ethoxylate to which is added, 2.2% by weight of a LAS-Na surfactant (linear alkyl (C12) sodium benzenesulfonate (molecular weight = 348)), a cationic surfactant (mono long-chain alkyl) (C18) Detergent composition containing 2.8% by weight of trimethylammonium chloride (molecular weight = 348) and the balance being water (aluminum chloride concentration: 0,1).
013% by weight), and using the detergent composition, the discoloration test of the actual garment was carried out by the above-mentioned method of evaluating the discoloration of the actual garment by a washing machine washing method.

[0075]

Example 6 The same procedure as in Example 5 was carried out except that 10% by weight of aluminum bromide was used instead of 10% by weight of aluminum chloride as a decolorizing inhibitor.

[0076]

Example 7 The procedure of Example 5 was repeated except that 10% by weight of aluminum iodide was used instead of 10% by weight of aluminum chloride as a decolorizing inhibitor.

[0077]

Example 8 The procedure of Example 5 was repeated except that 10% by weight of aluminum chloride was used instead of 10% by weight of aluminum chloride.

[0078]

Example 9 The procedure of Example 5 was repeated except that 5.0% by weight of aluminum chloride and 5.0% by weight of aluminum bromide were used instead of 10% by weight of aluminum chloride.

[0079]

Example 10 Aluminum chloride 10 as a decolorizing inhibitor
Example 5 was repeated except that 5.0% by weight of aluminum chloride was used instead of 5% by weight.

[0080]

Example 11 Aluminum chloride 10 as a decolorizing inhibitor
A detergent composition (aluminum compound concentration: 0.026% by weight) was prepared by using 5.0% by weight of aluminum chloride and 5.0% by weight of aluminum iodide instead of 5.0% by weight. Was carried out in the same manner as in Example 5 except for the immersion cleaning method.

[0081]

Example 12 Aluminum Chloride 10 as Decoloring Prevention Agent
A detergent composition (aluminum compound concentration: 0.026% by weight) was prepared by using 5.0% by weight of aluminum chloride and 5.0% by weight of aluminum fluoride instead of the weight%, and a method for washing a washing machine. Was carried out in the same manner as in Example 5 except for the immersion cleaning method.

The results of the above tests are shown in Table 2 below.

[0083]

[Table 2] From the above results, it can be seen that the present invention can perform cleaning without a problem in discoloration while maintaining good cleaning power.

[0084]

According to the present invention, color fading and dye transfer easily occur.
Even when the colored fiber material made of protein fiber such as hair or silk is washed by an ordinary washing method, a special effect that no problem of discoloration or migration is caused is exerted.

This is very valuable in that a normal washing machine can be washed with a colored fiber material made of protein fibers such as hair and silk without using a specific washing method. .

[0086]

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Sadamitsu Mori 1-7-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation

Claims (3)

[Claims] 1. An anti-decoloring agent for a colored fiber material comprising an aluminum halide. 2. A cleaning composition for a colored fiber material, comprising 0.5 to 30% by weight of the decolorizing inhibitor for a fiber material according to claim 1. 3. The method for cleaning a colored fiber material according to claim 1, wherein the decolorizing inhibitor for the colored fiber material is added to the washing bath in an amount of 0.03.
A method for cleaning a colored fiber material, wherein the colored fiber material is contained in an amount of 1% by weight or more.