JP2017008439A - Color fade-out dissolution agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color face-out dissolution agent capable of effectively dissolving color fade-out.SOLUTION: Provided is a color face-out dissolution agent at least including: a color deeping agent (A); and a low dyeing pigment.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fading eliminating agent. The use of the fading-removing agent of the present invention is not particularly limited. However, in an environment where the dilution rate of the fading-removing agent is relatively low (for example, “dipping in a container such as a bucket in a general household or a private store” It can be particularly preferably used for “discoloration elimination” in “use in processing, etc.”.

  According to the present invention, by using together the “deep coloring agent” and the “low dyeing dye” defined below, a faded clothing (for example, black or dark clothing) Deepen and darken and rejuvenate the “fading” of clothing.

  In the field of “color care” such as clothing in the prior art, for example, for yellowing and darkening of white / light-colored clothing, a countermeasure using a bleaching agent or a fluorescent whitening agent has been made.

  On the other hand, there are no known drugs in the prior art that can be used at the level of daily necessities, household goods, etc., in order to cope with the thinness of dark / black clothing.

  In dark / black garments, there is a phenomenon that these clothes appear to be whitened by “fluffing”. In this “color care”, for example, by cutting the fuzz with an enzyme such as cellulase, Is known. However, the treatment of “fluffing” with an enzyme such as cellulase can be used only for “cotton” because of its principle, and the effect of “fluffing” cutting is difficult to see (that is, accurate verification of the effect). It is difficult). In addition, blending an enzyme such as cellulase at a high concentration in the treatment agent has a disadvantage that it may cause damage to the clothing itself.

  As a cause of “fading” of clothing, for example, a chlorine-based compound in tap water can be mentioned. In this case, there is a method using a neutralizing agent (Patent Document 1: Japanese Patent Laid-Open No. 2000-129290, Patent Document 2: Japanese Patent Laid-Open No. 2001-172676). It only slows the speed of fading.

  As a post-treatment of the above “fading”, it is possible to dye with “stained” garment-specific dyeing agent, but there is a drawback that the operation is complicated and uneven. Also, after “dyed” with the dye, it remains that color until it fades again or is peeled off with a special agent.

  In general, as an industrial application such as a spinning factory or a cleaning shop, a process of deepening a dark / black garment using a deep colorant is performed (Patent Document 3: JP-A 2006-2006). No. 20000)

  On the other hand, as a “color care” agent for home use, Kao Corporation has proposed that achieves “color care” using Si and F compounds (Patent Document 4: Japanese Patent No. 4447117). (Publication)

JP 2000-129290 A JP 2001-172676 A JP 2006-200098 A Japanese Patent No. 4447117

  As described above, various methods have been conventionally known for dealing with removing or hiding dirt. For example, there are drugs that delay the fading of the dark and black clothing described above, and products that contain them, but these drugs and the like only delay the “fading” to the last.

  In addition, it was difficult to “objectively” verify the effect of fuzzing with enzymes.

  Therefore, the use of “discoloration elimination”, which has been performed industrially in the conventional technology, is made simpler and more reliable, and its applications are expanded (for example, “disappearance of discoloration in homes or small businesses”). There was a need to implement "

  An object of the present invention is to provide a discoloration-eliminating agent that can eliminate the above-described drawbacks of the prior art and can effectively prevent “discoloration”.

  As a result of earnest research, the present inventor does not use “deep coloring agent” and “low dyeing dye” completely separately as in the prior art, but has completely different actions and effects. As a result, it has been found that the use of these two components (low dyeing dye and deep colorant) in combination is extremely effective for achieving the above object (that is, eliminating fading). .

  The fading-eliminating agent of the present invention is based on the above findings, and more specifically, is characterized by containing at least a deep colorant (A) and a low dyeing dye (B).

  The fading-removing agent of the present invention contains both a deep colorant (A) and a low dyeing pigment (B). For this reason, when the color fading eliminating agent is used, “fading” of clothing or the like can be effectively eliminated or reduced based on the action of the color deepening agent. This deep-coloring agent has an effect of deepening (or returning to) that color depending on the color of the fabric to which it is attached. Therefore, even if the original color is faded, it can be restored to the “original color” or close to the original color, so that the faded color can be restored or reduced.

  Since the deep colorant (A) has a property of accumulating the effect, the color of the fabric faded using the deep colorant can be restored. The deep colorant tends to deepen the color depending on the color (original color) of the fabric to which it is attached. Therefore, even if the original color is faded, the color can be restored because the color can be deepened.

  However, when the color fading progresses and becomes close to white as much as possible, a deep coloring agent (for example, treatment of about 1 to 2 times) alone tends not to be sufficiently dark. In the present invention, the effect of the color deepening agent can be effectively assisted by using a dye having a low dyeability (that is, a low dyeability dye) in combination. Since the low dyeing dye is once dyed, it is easily peeled off by subsequent washing, so that there is an advantage that problems such as a difference in hue from the original color hardly occur during dyeing. As the low dyeing pigment, those having a dark color such as black, blue, green and red can be suitably used. If necessary, the low dyeing colorant may be used as a product group with color variations so that it can be properly used depending on the type of clothing of interest.

  Since the fading-removing agent (C) of the present invention contains the low dyeing dye (B) (in combination with the deep colorant (A) described above), the low dyeing dye is the deep color mentioned above. It has the effect of assisting the effect of the agent. Since the low dyeing property has a characteristic that even if the garment is dyed thereby, it can be easily peeled off in the subsequent washing, it will be dyed approximately the same amount for each washing. As a result, when the color fading eliminating agent of the present invention is used, only the deep coloring agent gradually accumulates every washing. In this case, since the low dyeing dye (B) is easily peeled off after washing), the clothes are not dyed by the low dyeing dye (B) (however, excessively This is not the case when a large amount of the dye (B) is used).

  Thus, in the fading-removing agent (C) of the present invention, the deep colorant (A) and the low dyeing colorant (B), which exhibit completely different actions and effects, exhibit their respective effects. , It becomes possible to exert each other's effects in a complementary and synergistic manner.

  On the other hand, in the prior art, since the low dyeing dye is peeled off immediately, the use of the dye was completely wasted and was thought to be “no merit to use”.

  On the other hand, in the present invention, attention is paid to the characteristics of the deepening agent that becomes “gradually darker” (or the color depth increases) by being applied to the cloth a plurality of times. In combination, the present inventors have found that low dyeing dyes achieve a “very effective” synergistic effect, thereby completing the present invention.

  That is, in the present invention characterized by the combination of (deep coloring agent (A) + low dyeing dye (B)), the “coloring property at each use” of the deep coloring agent (A) is low. The dyeable dye (B) has a characteristic that can be enhanced in appearance. In addition, since the low dyeing dye (B) is peeled off from the cloth immediately, the effect of the deep colorant is not inhibited or corrected (for example, the color tone of the deep colorant (A) is not changed). Even if the dyeing dye (B) is used a plurality of times (with the color deepening agent (A)), the side effects or disadvantages of the low dyeing dye (B) are substantially equal. Thereby, in this invention, it has the characteristics that the characteristic of a deep color agent (A) can be "complemented" by a low dyeing pigment | dye without a demerit.

  The present invention can include, for example, the following aspects.

  [1] A fading-removing agent comprising at least a deep colorant (A) and a low dyeing colorant (B).

  [2] The fading eliminating agent according to [1], wherein the deep colorant (A) includes a low refractive index resin.

  [3] The fading eliminating agent according to [1] or [2], wherein the low refractive index resin is selected from a fluororesin, a Si resin, a silicone, a siloxane, an acrylic resin, a urethane resin, or a mixture thereof.

  [4] The color fading eliminating agent according to any one of [1] to [3], wherein the low dyeing dye (B) has a structure in which a polymer is added to a general dye.

  [5] The low dyeing dye (B) has a structure in which a polymer having an alkyl, alkoxy, amino, hydroxyl, and carboxyl group is added to a general dye [1] to [4] ] The fading elimination agent in any one of.

  [6] The low dyeing dye (B) contains a benzodiflurane, methine, triphenylmethane, naphthalimides, pyrazoles, naphthoquinone, anthraquinone structure; and mono-azo dyes and di-azo dyes, And the fading-removing agent according to any one of [1] to [5] selected from a mixture thereof.

  [7] The fading eliminating agent according to any one of [1] to [6], wherein the low refractive index resin is included in an amount of 5% to 30% (relative to the entire fading elimination agent).

  [8] The color fading eliminating agent according to any one of [1] to [7], wherein the low dyeing pigment is contained in an amount of 0.01 to 1% (relative to the entire color fading eliminating agent).

  [9] The fading eliminating agent according to any one of [1] to [8], wherein the color of the low dyeing pigment is black, dark gray, ultramarine blue, dark green, or blue.

  [10] The fading eliminating agent according to any one of [1] to [9], further including a detergent component.

  [11] The fading eliminating agent according to any one of [1] to [10], wherein the detergent component is contained in an amount of 0.1% to 75% (relative to the entire fading elimination agent).

  [12] The color fading eliminating agent according to any one of [1] to [11], further including a finishing agent component.

  [13] The finish component includes a surfactant, a cleaning agent, a softening agent, a curing agent, a texture modifier, an anti-wrinkle agent, a shape maintaining agent, a water absorbing material, a fiber protective material, a water repellent, and an antibacterial agent ( [1] to [12] which are at least one selected from antiviral agents), disinfectants (including antiviral agents), insect repellents, deodorants, deodorants, antifouling agents, color formers, and fragrances. ] The fading elimination agent in any one of.

  [14] The fading eliminating agent according to any one of [1] to [13], wherein the finish component is contained in an amount of 0.1% to 75% (relative to the entire fading elimination agent).

  [15] When the fading-removing agent is used as a stock solution or appropriately diluted and used for washing clothes of 1 to 20 times, the fading-reducing effect continues from the point of L * value [1] ] The fading-removing agent according to any one of [14] to [14].

  [16] A laundry detergent comprising the fading-removing agent according to any one of [1] to [15].

  [17] A finishing agent for clothing containing the fading-removing agent according to any one of [1] to [15].

  As described above, according to the present invention, a fading-removing agent that can effectively eliminate “fading” is provided.

  The fading-eliminating agent of the present invention is, for example, a “fading-eliminating” agent in an environment where the dilution rate of the fading-eliminating agent is relatively low (for example, “pickling” treatment in a container such as a bucket). Therefore, it can be particularly preferably used.

  According to the present invention, faded clothing (for example, black or dark clothing) is made deeper and deeper by using together the “deep coloring agent” and “low dyeing dye” defined below. Can revive the fading of clothing.

  The fading-removing agent of the present invention can rejuvenate the fading of clothing by, for example, “immersing” the fading-eliminating agent in a diluted solution.

  As described later, the deepening agent includes Si and F compounds (for example, trade name “Vatex”) having an effect of deepening the color of the element itself, and compounds having an effect of achieving deepening in the resin film (for example, , “Raster”). Si and F compounds are known to give a reddish black, while resin-based compounds (eg, trade name “Raster”) give a bluish black. “Bluish black” has the additional effect of giving an elegant impression, as used in formal clothing.

  Further, for example, since the color of jeans can be changed more deeply and deeply, the fading-removing agent of the present invention can be used not only for recovering the color but also for enjoying the hue.

FIG. 1 is a graph showing an example of an “effect test” when a “deep coloring agent” used in eliminating the fading of the present invention is used. FIG. 2 is a graph showing an example of “L * value” in various colors before and after immersion when the fading eliminating agent (C-1) of the present invention is used. FIG. 3 is a graph showing an example of “L * value” in various colors before and after immersion when the fading eliminating agent (C-2) of the present invention is used. FIG. 4 shows the effect of the color fading eliminating agent when the color change of jeans is examined using the color fading eliminating agent (deep coloring agent (A) + low dyeing dye (B)) of the present invention ( It is a graph which shows an example of (L * value). FIG. 5 shows the effect of the color fading eliminating agent when the color change of jeans is examined using the color fading eliminating agent (deep coloring agent (A) + low dyeing dye (B)) of the present invention ( It is a graph which shows an example of (b * value).

  Hereinafter, the present invention will be described more specifically with reference to the drawings as necessary. In the following description, “parts” and “%” representing the quantity ratio are based on mass unless otherwise specified.

(Fading elimination agent)
The fading eliminating agent of the present invention contains at least the deep colorant (A) and the low dyeing property dye (B).

(Deep coloring agent A)
The deep colorant (A) constituting the fading eliminating agent of the present invention also has an effect of preventing fading. This deep color agent has the effect of deepening the color depending on the color of the fabric to which it is attached. Therefore, even if the original color is faded, the color, that is, the hue (indicated by the Lab coordinates) can be deepened, so that the color can be kept dark.

  Although the effect of the deep colorant is accumulated, the effective concentration is high and the effect cannot be sufficiently observed by washing once or twice at the dilution rate in the washing machine. In the fading-removing agent of the present invention, since the low dyeing property dye (component B) is used in combination with the deep colorant (A), the low dyeing agent has the effect of the deep colorant. Assist. Even if the low dyeing dye is dyed, it tends to be easily peeled off in the subsequent washing, so that the dye is dyed by the same low dyeing dye for each washing. Meanwhile, the other deep colorant gradually accumulates on the fabric.

(Specific examples of deep colorants)
The deep coloring agent that can be used in the present invention is not particularly limited. The deep colorant is appropriately selected from known drugs conventionally used for "deep color" (for example, those described in Japanese Patent No. 4447117) (if necessary, A combination of two or more thereof). In addition, industrial deep colorants such as raster (manufactured by Kotani Chemical Co., Ltd., for example, raster AB-8K), Vasotex (manufactured by Meisei Chemical Industry Co., Ltd., for example, Vasotex FS-370E) and the like are also used in the present invention. It can be suitably used.

(Suitable deep colorant)
Examples of the color deepening agent suitable in the present invention include, for example, fluororesin, Si resin, silicone, siloxane, acrylic resin, urethane resin or a mixture thereof.

(Low refractive index resin)
The low refractive index resin suitable for the present invention is a water-insoluble polymer having a refractive index at 25 ° C. of 1.20 to 1.45, preferably 1.25 to 1.45, particularly preferably 1.30 to 1.43. It is. When the refractive index is within this range, a sufficient color recovery effect can be easily obtained, and the color tends to be appropriate. Note that a polymer that dissolves in water cannot achieve a satisfactory color recovery effect like the water-insoluble polymer of the present invention.

As the polymer satisfying the above properties, a fluorine-containing polymer and a silicone compound are preferable, and a fluorine-containing polymer is particularly preferable. Fluoropolymers include trifluoroethyl acrylate (or methacrylate), pentadecafluorooctyl acrylate (or methacrylate), tetrafluoroethylene, trifluorochloroethylene, trifluoroethyl acrylate (or methacrylate), hexafluoropropylene, tetrafluoro One or more monomers selected from ethylene oxide and hexafluoropropylene oxide are polymerized or copolymerized, or modified silicone having an organic group containing a fluoroalkyl group, a fluoroalkylene group or a fluoroaryl group, which will be described later Fluorine-modified silicone is preferred. From the point of color recovery effect, it is measured by gel permeation type liquid chromatography (GPC) when measured using a calibration curve prepared using dimethylformamide (DMF) as a developing solvent and polystyrene as a standard. The weight average molecular weight of the polymer is preferably 1 × 10 ³ to 1 × 10 ⁶ , and more preferably 1.5 × 10 ^{3 to} 5 × 10 ⁵ .

  The fluorine-based polymer can be obtained by an ordinary radical polymerization reaction when the monomer is an ethylenically unsaturated compound and by an ordinary addition reaction when the monomer is an alkylene oxide compound. As the radical polymerization reaction method, bulk polymerization, solution polymerization, emulsion polymerization, or the like can be used. As the polymerization initiator, 2,2′-azobis (2-amidinopropane), azobisisobrilonitrile, di-t-butyl peroxide, hydrogen peroxide, t-butyl hydroperoxide, cumene hydroperoxide, Methyl ethyl ketone peroxide, cyclohexanone peroxide, peracetic acid, perbenzoic acid, lauroyl peroxide, persulfate can be used.

  In the addition reaction of an alkylene oxide compound, the reaction can be easily performed using a commonly used alkali such as sodium hydroxide or potassium hydroxide or a Lewis acid such as boron trifluoride as a catalyst.

  In the present invention, it may be a copolymer containing a copolymerizable monomer other than the above-mentioned fluorine-containing monomer, but constitutes the copolymer (number of moles of fluorine-containing monomer). The ratio of / (fluorinated monomer + copolymerizable monomer; that is, the number of moles of all monomers) is preferably 0.5 or more, more preferably 0.6 or more. It is preferable in terms of the color recovery effect.

Fluorine-modified silicone viscosity at 25 ° C. is 100,000 to 200,000 mm ² / s in the case of using, preferably from 50 to 100,000 mm ² / s, particularly preferably 5 100 to 80,000 mm ² / s things recovering color It is preferable in terms of effects.

  In the present invention, a silicone compound can also be used as the color deepening agent (A). The silicone compound is an organopolysiloxane oil having the specific refractive index range and solubility properties, and specifically, dimethylpolysiloxane oil (hereinafter referred to as dimethylsilicone) or dimethylsilicone oil side chain or terminal. In addition to the organopolysiloxane oil in which part of the methyl group is a hydroxy group (hereinafter referred to as hydroxysilicone), part of the methyl group of the dimethylsilicone or hydroxysilicone (preferably the methyl group of the side chain) Is an organopolysiloxane oil (hereinafter referred to as a modified silicone) in which is an “organic group other than a methyl group”. The modified silicone is exemplified mainly in Chapter 6 of Silicone Handbook (edited by Kunio Ito, published by Nikkan Kogyo Shimbun, August 31, 1990, first edition, 1 edition). Organic groups other than methyl groups include organic groups including amino groups, organic groups including amide groups, organic groups including polyether groups, organic groups including epoxy groups, organic groups including carboxy groups, and organic groups including alkyl groups. In addition to an organic group containing a group or a halogenoalkyl group, a halogenoalkylene group or a halogenoaryl group, an organic group containing a poly (N-acylalkylenimine) chain can be mentioned. In the present invention, preferably a modified silicone having an organic group containing an amino group (hereinafter amino-modified silicone), a modified silicone having an organic group containing a poly (N-acylalkyleneimine) chain, a halogenoalkyl group, a halogenoalkylene group or A modified silicone having an organic group containing a halogenoaryl group (halogeno-modified silicone), more preferably an amino-modified silicone having an amino equivalent of 1500 to 40000 g / mol, more preferably 2500 to 20000 g / mol, and particularly 3000 to 10,000 g / mol. Or a fluorine-modified silicone, most preferably a fluorine-modified silicone that is a halogeno-modified silicone of a fluorine atom.

  In the present invention, when a modified silicone having a water-soluble organic group is used, it is preferable to select one having a degree of modification not exceeding 1 g per liter (liter) of ion-exchanged water at 20 ° C. .

The silicone compound of the present invention (excluding fluorine-modified silicone) has a weight average molecular weight of 1 × 10 ³ to 1 × 10 ⁶ determined by gel permeation liquid chromatography using polystyrene as a standard and chloroform as a developing solvent. Is preferable, 5 × 10 ^{3 to} 5 × 10 ⁵ is more preferable, and 5 × 10 ^{3 to} 2.5 × 10 ⁵ is most preferable. Also, using a B-type viscometer, the rotor No. 2. The viscosity measured under the condition of 60 rpm is preferably 100,000 to 100,000 mm ² / s, more preferably 500 to 50,000 mm ² / s, and most preferably 1,000 to 40,000 mm ² / s. is there.

  In the present invention, an acrylic compound refers to a copolymer obtained by polymerizing a polymer of an acrylic acid monomer and another polymerizable monomer polymerizable with the acrylic acid monomer by a known or well-known polymerization method. Refers to coalescence. Examples of acrylic acid monomers include acrylic acid, methacrylic acid and their derivatives, acrylic acid ester, methacrylic acid ester, N-methylol acrylamide, dimethylaminoethyl methacrylate, and the like. These acrylic compounds can usually be used in the form of a water-soluble emulsion.

In the present invention, the urethane compound is a polyurethane obtained by reacting a urethane prepolymer having an isocyanate group at a terminal with a compound having a hydroxyl group or an amino group, or further reacting with a hydrophilic compound. Urethane compounds can usually be used in the form of water-soluble emulsions.

  In the present invention, only one type of deep coloring agent may be used, or two or more types having different contents may be used. When two or more types are used, the respective deep coloring agents may be mixed and added simultaneously, or may be divided into two or more times and optionally added in a separate bath.

(Range of suitable deep colorants)
In the present invention, a “suitable deep colorant” can be defined by the following test method.

(Measurement by ΔL * value)
The L * value is measured using a colorimeter. It is shown in a range from 0 (black) to 100 (white). When the numerical value is large, the color is white (bright and light), and when it is small, the color is black (dark, deep, and dark).

  For example, the initial L * value = about 16 of a new black cotton T-shirt on the market is almost black. On the other hand, when the T-shirt is thin, L * value = about 16.5 appears to be clearly faded compared to 16. If it is black, if there is a difference of 0.5 or more as the L * value, the change (fading) can be clearly confirmed with the naked eye.

(Significance of ΔL * value)
Here, in the present invention, the initial state of the cloth to be treated and the L * value after the treatment are measured, and the difference between the initial value and the value after the treatment is calculated as a ΔL * value.
In the present invention, the ΔL * value is expressed as a “positive number” as the absolute value of the difference (| ΔL * | value). In the present invention, since the L * value is used to express the deepening effect, it goes without saying that the L * value after processing is reduced compared to the initial state and does not increase.

(Effect of deep color agent)
In the present invention, the effect of the deep coloring agent can be determined by the following measuring method. That is, a deep color agent capable of giving a deep color within the range described below is a “deep color agent suitable in the present invention”.
(A) In this measuring method, it can be easily judged by immersing a black cloth with an arbitrarily diluted deep coloring agent and measuring the change in L * value after drying.
(B) The ΔL * value is measured by reflection of light using a colorimeter. In the present invention, a colorimetry color meter ZE6000 manufactured by Nippon Denshoku Industries Co., Ltd. is used to measure reflected light.
(C) In this measurement, a test cloth EMPA 132 (black cotton cloth) manufactured by Swiss Federal Institute for Materials Testing is used.
(D) As a specific measurement method, in the present invention, the method and conditions described in “Example A1” described later can be preferably used.

(Suitable deep colorant)
In the present invention, in the measurement of ΔL * value, when a 0.1% aqueous solution is used as the deep colorant, the ΔL * value is preferably 0.8 or more, and more preferably 1.0 or more. In particular, it is preferable that the color deepening agent be 1.5 or more.

  In general, the ΔL * value is visible when the color becomes deep (dark) with a change of 0.5 or more mainly in the younger generation, and the color is clearly deep with a change of 1.0 or more. You can recognize that it will be (darker).

(Low dyeing dye)
Along with the above-mentioned “deep coloring agent” (component A), the low dyeing colorant (component B) constituting the fading-removing agent of the present invention is difficult to adhere to the solid surface, difficult to dye, and easy to dye. This is a low dyeing dye that has been improved so that it can be washed off. Such a low dyeing dye can be obtained, for example, by combining a polymer with a conventional dye molecule to obtain a polymer (Document: JP-T-2008-523215).

(Specific examples of low dyeing pigments)
In the present invention, known drugs conventionally referred to as “low dyeing dyes” can be used without particular limitation. As such a “known drug”, for example, it can be selected from the low dyeing dyes described in JP-T-2008-523215 (as needed, in combination of two or more). . In addition, a commercially available low dyeing dye (for example, QUIQUINT manufactured by Milliken Japan) can also be used.
Known dyes: alkyl, By adding a polymer containing alkoxy, amino, hydroxyl, and carboxyl groups, it is a dye with low dyeing properties that has been improved so that it does not easily adhere to a solid surface, is difficult to dye, and can be easily washed off even when dyed. (For example, a low dyeing dye described in JP-T-2008-523215).

(Preferable low dyeing dye)
The effect at the time of using a low dyeing property pigment | dye can be discriminate | determined by measuring as follows.
(A) A white cloth is soaked with an arbitrarily diluted pigment, and after drying, L * value, a * value, and b * value are measured, and ΔE value is calculated.
(B) The cloth treated with the dye is washed, and after drying, the L * value, the a * value, and the b * value are measured, and the ΔE value is calculated to easily determine dyeing and decolorization. .
(C) The ΔE value is measured and calculated by light reflection using a colorimeter. In the present invention, a colorimetry color meter ZE6000 manufactured by Nippon Denshoku Industries Co., Ltd. is used to measure reflected light.
(D) The washing process is performed using a targotometer. In the present invention, Tagotometer TM-8 manufactured by Daiei Scientific Instruments Co., Ltd. is used.
(E) As a specific measurement method, in the present invention, the method and conditions described in “Example A2” described later can be preferably used.

As the “low dyeing dye” in the present invention, it is preferable to use a dye having the following measured value when a test for measuring the ΔE value is performed using the 0.001% aqueous solution.
(A) The value of ΔE after the immersion treatment (that is, ΔE ₁ ) is preferably 5 or more, more preferably 10 or more, and particularly preferably 15 or more.
(B) The value of ΔE after the washing treatment (that is, ΔE ₂ ) is preferably 5 or less, more preferably 3 or less, and particularly preferably 2 or less.

  During the blending of the fading-removing agent of the present invention, a surfactant, a cleaning agent, a stabilizer, an antifoaming agent, an enzyme, a softening agent, a curing agent, a texture modifier, an antibacterial agent, as appropriate. Wrinkle agent, shape maintenance agent, water absorbing material, fiber protective material, water repellent agent, antibacterial agent (including antiviral agent), disinfectant (including antiviral agent), insect repellent, deodorant, deodorant, antibacterial You may combine arbitrary components (P), such as 1 or more types chosen from a soiling agent, a coloring agent, and a fragrance | flavor. When using the optional component (P) (that is, a component other than the component A and the component B), the total amount of the optional component (P) is 0 (based on the total mass of the component A and the component B = 100%). 0.001 to 80% is preferable, 0.01 to 70% is more preferable, and 0.1 to 60% is particularly preferable.

(Preferred use mode of fading-removing agent)
When using the fading-removing agent of the present invention, the fading-removing agent formulated as described above is used in water (for example, at the time of washing) with 0.1 g to 10 g / L of the fading-removing agent. It is preferable to use it in an input amount. In other words, when using the fading-removing agent of the present invention, when the fading-removing agent is 1 part by mass, it is used by putting it in 1 × 10 ⁴ to 1 × 10 ² parts by mass of water. Is preferred.

(Preferable mixing ratio of component A / component B)
In the present invention, the total amount (100%) of all the components constituting the fading-eliminating agent of the present invention includes the deep colorant (A) and the low dyeing dye (B) in the following quantitative ratios. Is preferred.
Deep color agent (A): 0.1 to 50% is preferable, 5 to 30% is more preferable, and 10 to 20% is particularly preferable.
Low dyeing pigment (B): 0.001 to 2% is preferable, 0.01 to 1% is more preferable, and 0.05 to 0.5% is particularly preferable.

(ΔL * value when using 0.001% aqueous solution)
In the present invention, in the above ΔL * value measurement, when a 0.001% aqueous solution is used as the fading-removing agent (C), the ΔL * value may be 0.5 or more (to be described briefly). Preferably, it is 1.0 or more, more preferably 1.5 or more. As the experimental conditions in this case, for example, the conditions of “Example A1” described later can be preferably used.

(Suitable ΔL * value when using 0.001% aqueous solution)
In the present invention, preferable values of the above-mentioned ΔL * value are as follows, as “preferred ΔL * value” to “most preferable ΔL * value”.
<Preferred L * value> ΔL * value is 0.1 or more, 0.2 or more, 0.3 or more, 0.4 or more, 0.5 or more <More preferable L * value> ΔL * value is 0.6 or more, 0.7 or more, 0.8 or more, 0.9 or more, 1.0 or more, 1.1 or more, 1.2 or more, 1.3 or more, 1.4 or more <most preferred L * value> ΔL * value is 1.5 or more

(ΔL * value when using 0.5% aqueous solution)

  In the present invention, in the above-described ΔL * value measurement, when a 0.5% aqueous solution is used as the fading-removing agent (C), the ΔL * value may be 1.5 or more (schematically). Preferably, it is 2.0 or more, more preferably 2.5 or more. As the experimental conditions in this case, for example, the conditions of “Example A1” described later can be preferably used.

(Suitable ΔL * value when using 0.5% aqueous solution)
In the present invention, preferable values of the above-mentioned ΔL * value are as follows, as “preferred ΔL * value” to “most preferable ΔL * value”.
<Preferable L * value> ΔL * value is 1.0 or more, 1.1 or more, 1.2 or more, 1.3 or more, 1.4 or more, 1.5 or more <More preferable L * value> ΔL * value is 1.6 or more, 1.7 or more, 1.8 or more, 1.9 or more, 2.0 or more, 2.1 or more, 2.2 or more, 2.3 or more, 2.4 or more <most preferred L * value > ΔL * value is 2.5 or more

(Finishing agent)
The fading eliminating agent (C) of the present invention can further contain a finishing agent component, if necessary. As such a finishing agent component, conventionally known components can be appropriately used. More specifically, a surfactant, a cleaning agent, a stabilizer, an antifoaming agent, an enzyme, a softening agent, a curing agent, a texture modifier, an anti-wrinkle agent, a shape maintaining agent, a water absorbing material, a fiber protective material, One or more selected from water repellents, antibacterial agents (including antiviral agents), disinfectants (including antiviral agents), insect repellents, deodorants, deodorants, antifouling agents, coloring agents, and fragrances It can be suitably used in the present invention. These finishing agent components may be contained in an amount of 0.1% to 75% (relative to the entire fading-removing agent of the present invention = 100%).

(Combination with softener)
When used in combination with a softening agent, the effect of the fading-removing agent of the present invention may be affected as shown in the examples described later. That is, the combined use of the fading-removing agent and the softening agent of the present invention (as in the combined use of a general detergent and a softening agent) is performed by comparing and considering the merits and demerits of such a combination. Etc. are preferably determined appropriately.

(Fading elimination effect)
Assuming that the color fading eliminating effect of the color fading eliminating agent of the present invention is substantially due to the color deepening agent, the following tendency can be recognized.

  For example, it is assumed that there is a clothing with a degree of blackness (arbitrary index different from L * value = BL value) = 80 (for convenience, BL = 0 is white and BL = 100 is black “100 levels” "; Units are arbitrary). Since the deep color agent effect makes the original color appear dark with an optical illusion using the refractive index, for example, it is assumed that the original color is “20% higher”. According to this assumption, if a deep colorant is put on clothes of BL = 80, BL = 16 is increased and the blackness of BL = 96 is obtained. Since clothes fade with various factors, if the original color fades to BL = 65 when dyed next time, the previous 20% is alive, and another 20% is added, so BL = 26 Increases to BL = 91. From this point of view, BL = 96 and BL = 91.

  On the other hand, if attention is paid to washing per time, the number of times is infinite in the sense of continuing to suppress thinning because it is darker than when it is not used. On the other hand, since it is only the base color that fades, from that point of view, it does not prevent the phenomenon of fading even once (however, “visually” eliminates the fading. ).

  In addition, for example, when cotton is used as a target, fluff comes out when the number of washings is 10 times and 20 times. Then, even if the L * value itself does not change, a phenomenon occurs that the fluff looks more whitish than it actually is. Even when this “fluff” is taken into consideration, when the fading-eliminating agent of the present invention is used, from the viewpoint of the “L * value”, from the viewpoint of “L * value”, 1 or more times, 20 times To a degree, blackness can be maintained. On the other hand, if the number of times of washing increases, fluff also stands up, and there is a possibility that it may become difficult to recognize that it is black to the eye.

  In the present invention, when evaluating from the viewpoint of the L * value, as shown in FIG. 1, the color can be sufficiently eliminated at least once and up to 20 times.

As described above, the fading-removing agent (C) of the present invention contains a deep colorant (A) and a low dyeing dye (B) as essential components, but the fading-removing agent (C) is necessary. Depending on the condition, it may be used in combination with other components; and used simultaneously with other components (for example, the fading-removing agent (C) of the present invention is charged into a container such as a bucket simultaneously with other components) After a certain amount of time, use the fading-removing agent (C) of the present invention and other components (for example, after charging the fading-removing agent (C) of the present invention into a container such as a bucket) The other component may be charged into the container; or the other component may be charged into the container, and then the fading-eliminating agent (C) of the present invention may be charged into the container. In any of these embodiments, as long as the ΔL * value obtained by the color fading eliminating agent (C) of the present invention is the following “preferable value”, it is included in the scope of the present invention.
<Preferred L * value> ΔL * value is 0.1 or more, 0.2 or more, 0.3 or more, 0.4 or more, 0.5 or more,
<More preferred L * value> ΔL * value is 0.6 or more, 0.7 or more, 0.8 or more, 0.9 or more, 1.0 or more, 1.1 or more, 1.2 or more, 1.3 or more 1.4 or more <Most preferred L * value> ΔL * value is 1.5 or more

  In the above-mentioned treatment such as “dipping” in the container, the fading-eliminating agent (C) of the present invention is used as it is or diluted as necessary, and then poured into the container, and the fading-eliminating agent is obtained. In (C), the faded color can be recovered by immersing the “faded clothing” to be treated by the fade-removing agent (C).

  In an embodiment in which the fading-eliminating agent (C) of the present invention is appropriately diluted as necessary, the fading-eliminating agent (C) is 0.1 g to 10 g / L (that is, the fading-eliminating agent (C) in 1 L of an aqueous solution). It is preferable that the cloth to be treated is dipped as an aqueous solution of 0.1 g to 10 g).

  The term “immersion” in the present invention refers to the fading-removing agent (C) of the present invention with respect to the “faded clothing” to be treated with the fading-removing agent (C) in containers such as buckets and washbasins. ) (If necessary, this also includes an aqueous solution after dilution; the same shall apply hereinafter) refers to any act of “penetrating” the fading-removing agent (C). For example, the “faded clothing” to be treated is “pickled” in a container such as a bucket or basin, the “pickled” in the washing machine is used, the clothes are washed in the washing machine, and the “pickled” "A general term for actions such as spraying a liquid on a cloth (for example, by spraying). In addition, in the “dipping”, not only simply standing, but also actions such as stirring the liquid as appropriate, applying the liquid to a cloth, and squeezing are included in the concept of “dipping”.

  Hereinafter, the present invention will be described more specifically with reference to examples. The following examples are examples of the present invention, and the present invention is not limited thereto.

[Example A1]
(Measurement of effect of deep colorant)
In the present invention, a “suitable deep colorant” can be defined by the following test method.

(Measurement by change of L * value)
In the present invention, the effect of the deep coloring agent can be determined by the following measuring method. That is, a deep color agent capable of giving a deep color within the range described below is a “deep color agent suitable in the present invention”.

  In this measurement method, it can be easily determined by immersing a black cloth with an arbitrarily diluted deep coloring agent and measuring the change in L * value after drying.

  The L * value is measured by reflection of light using a colorimeter. In the present invention, a colorimetry color meter ZE6000 manufactured by Nippon Denshoku Industries Co., Ltd. is used to measure reflected light.

  In this measurement, a test cloth EMPA 132 (black cotton cloth) manufactured by Swiss Federal Institute for Materials Testing is used.

(Specific measurement method of L * value)
The test cloth EMPA 132 is used after being cut into about 20 cm square (hereinafter, the state in which the cloth is cut is referred to as a cloth piece). For the EMPA 132 cloth piece, the initial value of the L * value is measured in advance. The measurement points shall be calculated at random by measuring the front 3 places and the back 3 places of the cloth of EMPA 132 so as not to be the same place on each side. In this case, there are a total of three measurement locations: the center of the cloth piece (one location) and two locations around the four corners (the measurement point is preferably separated from the edge by 3 cm or more so as not to be too close to the corner). It is preferable that

  First, the initial L * value of the cloth piece of EMPA 132 is measured. Next, the “deep coloring agent” to be evaluated is dissolved in ion-exchanged water to prepare a 0.1% aqueous solution. About 2 L (liter) of the 0.1% deep color agent aqueous solution is placed in a container such as a wash basin (plastic, stainless steel, aluminum, glass, etc.), and the cloth piece of EMPA 132 is immersed therein. The liquid temperature at this time should just be normal temperature, and 5 to 30 degreeC is preferable.

  After dipping the piece of cloth, let stand for 5 minutes, then take out the cloth, rinse without water, dehydrate using a Hitachi 2 tank type electric washing machine PS-H35L, 30 in a thermostatic device at 60 ℃ Dried for minutes. If moisture remains after this drying, the drying time is extended to achieve complete drying. In this case, check by extending the drying time by 5 minutes. If it is not dry, it is preferably extended for another 5 minutes and repeated until dry.

  The L * value of the “dried piece of EMPA 132” thus obtained is measured with the colorimeter described above. As for the measurement points, three front and back surfaces are measured in the same manner as the initial L * value.

From the average value of the initial state L * value and the average value of the L * value after processing, the ΔL * value is calculated by the following equation (1).
ΔL * value = [average of initial L * values] − [average of L * values after processing] (1)

(Example of test results for deep colorants)

  The results when the performance of the color deepening agent was actually evaluated and confirmed by the test method described above are shown below.

  Here, as an example of the color deepening agent, a fluorine type color deepening agent (Madesei Chemical Industries, Ltd. Vasotex FS-370E) was used.

In accordance with the test method described above, a cloth piece of EMPA132 was immersed in a 0.1% aqueous solution, and as a result, the ΔL * value was determined to be 1.79 by the following formula.
ΔL * value = [initial L * value: 23.32] − [L * value after processing: 21.53] = 1.79

[Example A2]
(Measurement of the effect of low dyeing pigment)
The effect at the time of using a low dyeing property pigment | dye can be discriminate | determined by measuring as follows.

  That is, a white cloth is immersed in an arbitrarily diluted pigment, and after drying, the L * value, a * value, and b * value are measured, and the ΔE value is calculated.

In addition, it is possible to easily determine dyeing and decoloring by washing a cloth treated with a dye, measuring the L * value, a * value, and b * value after drying, and calculating the ΔE value.

The ΔE value is measured and calculated by reflection of light using a colorimeter.

In the present invention, a colorimetry color meter ZE6000 manufactured by Nippon Denshoku Industries Co., Ltd. is used to measure reflected light. The washing process is performed using a targotometer. In the present invention, Tagotometer TM-8 manufactured by Daiei Scientific Instruments Co., Ltd. is used.

  The laundry treatment is performed at 100 rpm and 30 ° C. for 10 minutes in principle, and the detergent used in the treatment is a non-concentrated liquid detergent (trade name: Clear Apple Blossom manufactured by NS Farfa Japan Co., Ltd.) unless there is a special reason. , Unscented fragrance).

  The usage method such as the amount of detergent should be in accordance with the usage method described in the detergent.

Use white cotton cloth No. 3 as the white cloth.

  It is used by cutting into a 20cm square of gold width 3 (hereinafter, the state in which the cloth is cut is referred to as a cloth piece). For the piece of gold width No. 3, the initial value of the L * value is measured in advance.

  The measurement points shall be measured at random so that the front 3 places and the back 3 places of the piece of gold-width 3 cloth do not become the same place on each side. In this case, the selection method of “the three places on the front and the back of the cloth piece” is the same as the above-described “specific measurement method of L * value”.

(Dye definition / test)
“Dye” in the present invention refers to the items of “low dyeing dye”, “specific examples of low dyeing dye” and “suitable low dyeing dye” having the performance shown by the following tests. Refers to the chemical substances described in 1. and other chemical substances.

  First, the initial L * value, a * value, and b * value of the cloth piece of No. 3 are measured.

  Dissolve the dye in water to make a 0.001% aqueous solution. About 2 L of the 0.001% dye aqueous solution is placed in a container such as a wash basin, and the cloth piece having a gold width of 3 is dipped. The liquid temperature at this time should just be normal temperature, and 5 to 30 degreeC is preferable.

  After leaving still for 5 minutes, the cloth piece is taken out and dehydrated without rinsing. Then, it is dried for 30 minutes in a thermostat at 60 ° C. If moisture remains at this time, the drying time is extended in order to achieve complete drying, as in the procedure shown in the “Example A1” above.

  The L * value, a * value, and b * value of the dried piece of gold width 3 are measured with the above-mentioned colorimeter. As for the measurement points, three front and back points are measured in the same manner as the initial L * value, a * value, and b * value. In this case, the method of selecting “the front 3 places and the back 3 places” is the same as described above.

  From the average value of each of the initial state L * value, a * value, and b * value and the average value of the L * value, a * value, and b * value after processing, first, a difference (ΔL *, Δa * , Δb *: each value in the initial state−each value after processing).

Next, the ΔE value is calculated by the following equation (2).
ΔE value = [(ΔL *) ² + (Δa *) ² + (Δb *) ² ] ^1/2 (2)

  Further, the processed piece of gold width No. 3 is washed with a tartometer, thoroughly rinsed and dehydrated. Dry in a constant temperature apparatus at 60 ° C. for 30 minutes. If moisture remains at this time, the drying time is extended in order to achieve complete drying, as in the procedure shown in the “Example A1” above.

  Measure the L * value, a * value, and b * value of the dried piece of gold width No. 3 at three locations on the front and back sides using the method described above, and use the formula (2) to compare the ΔE value with the cloth piece before treatment. calculate.

(Definition of dyes / example of test results)
The results when the performance of the dye is actually confirmed by the test method described above are shown below.

  As an example, a blue pigment (Liquint BLUE manufactured by Milliken Japan) was used.

  According to the test method described above, a cloth piece with a gold width of 3 was immersed in a 0.001% aqueous solution and dyeing was performed. As a result, the ΔE value was 16.25. Further, as a result of the decoloring process by washing, the ΔE value was 1.07.

  From the above results, it is preferable to use a substance having a ΔE value of 10 or more during dyeing and a ΔE value of 3 or less after decolorization when the 0.001% aqueous solution is used as the low dyeing dye.

[Example B1]
The treatment agent is prepared by blending 15% of the deep colorant (A) and the low dyeing dye (B) in the following quantitative ratio, and this is used as the fading-removing agent (C-1) of the present invention, And (C-2) stock solution.
Deepening agent (A): Raster (Kotani Chemical Resin), Vasotex FS-370E (Meisei Chemical Fluorine)
Low dyeing dye (B): Requiint (Miriken Japan)
(C-1): A stock solution obtained by mixing 8% of a deep colorant (A) and 0.01% of a low dyeing dye (B) and diluted to 6 g / L with water (C- 2): A stock solution obtained by mixing 15% of the deep colorant (A) and 0.01% of the low dyeing dye (B) was diluted to 6 g / L with water.

  The two types of fading-removing agents (C-1) and (C-2) 3L described above were put in separate commercially available washbasins (made of polypropylene, capacity 5 L). A commercially available new black cotton T-shirt (Hanes Brands, Inc., Hanes initial L * value = 14.7 to 14.9) and the T-shirt were decolorized with hypochlorous acid to artificially fade. Two types of T-shirts (initial L * value = 16.3 to 17.1) were dipped in separate basins containing (C-1) and (C-2). .

  After being immersed for 5 minutes, it was dehydrated, hung indoors and dried to dry completely. The L * value of each T-shirt was measured using a color difference meter, and the change ΔL value from the initial L * value was calculated. In addition, three non-identical places on the T-shirt were measured.

The L * value is measured using a colorimeter. It is shown in a range from 0 (black) to 100 (white). When the numerical value is large, it is white (bright and light), and when it is small, it is black (dark, deep, and dark). The initial L * value of black T-shirt = about 15 is almost black. The lean L * value = about 16.5 appears to be clearly lean compared to 15. If it is black, if there is a difference of 0.5 or more as the L * value, the change (fading) can be clearly confirmed with the naked eye.

According to the above test, the following results were obtained.
-Both new and thin T-shirts were sufficiently blackened by one immersion.
・ The new T-shirt is blacker.
・ Although the thin T-shirt did not reach the level of a new one, the blackness was sufficiently recovered to the naked eye.
-It was confirmed that the effect increased with the blending concentration.

  Instead of the black T-shirt described above, various commercially available T-shirts of various colors were processed in the same manner as described above. The color change at this time is shown in the graphs of FIGS.

  As shown in FIG. 2 and FIG. 3, it has been found that the colors are uniformly dark (dark and deep), although there is a difference in degree for each color. In these figures, Re = red, Gr = green, Bl = blue, Or = orange, and Ka = khaki are shown.

[Example D1]
(Softener combination test)
Clothing: Cotton black T-shirt (Hanes Brands, Inc., Hanes initial L * value 16.3 to 16.4)
Agents used: Deep colorants Kotani Chemical Raster AB-8K 30%)
NS Farfa Japan Co., Ltd. Concentrated softener Farfa Trip Dubai

(Test method)
First, the T-shirt was washed several times with a concentrated liquid detergent (trade name: Deotect, WORKERS workwear exclusive wash) manufactured by NS Farfa Japan Co., Ltd., and faded. Then, it cut into a 30 cm square. Washing treatment was performed for 3 minutes by Hitachi 2 electric tank washing machine PS-H35L, water volume 10L, soft mode (to prevent fabric deterioration due to washing). The treatment was performed by using 0.015% (1.5 g / 10 L) of a color deepening agent and 10 g / 30 L of a softener made by NS Farfa Japan. After the washing treatment, it was dehydrated for 1 minute, hung overnight and dried. After drying, the L * value was measured.

Unprocessed L * value: 16.34
Treatment (deep coloring agent only) 14.21
Unprocessed L * value: 16.55
Treatment (Deep color and softener combined) 15.04
The result obtained here is shown in the graph of FIG. 5 (L * value when softener is used together). There was a tendency that the deepening effect was slightly inhibited by the use of the softener.

[Example E1]
(Jean color change)
Container: Plastic wash basin Chemicals used: Deep color agent Kotani Chemical Raster AB-8K 30% product 1.67g / L
Low dyeing dye: Requiint 0.03g / L manufactured by Milliken Japan GK
Clothing: Jeans (Inexpensive items sold in and around Kamisu, Ibaraki, brands, etc. are unknown)

(Test method)
Jeans were cut into 20 cm squares, and the initial L * value and b * value (blue degree: dark blue so vivid as to shake negatively) were measured (the measurement method is as described above). Since the jeans fabric has the front and back, the front is the front value and the back is the back value, and each surface is measured and averaged three times so as not to be constant (the measurement method is as described above).
Next, a 5 L solution containing the sample was prepared in the basin, and jeans were immersed for 5 minutes. It was dehydrated for 3 minutes with a two-tank electric washing machine PS-H35L manufactured by Hitachi, Ltd., and hung and dried overnight. After drying, L * and b * values were measured.

(result)
<L * value>
Untreated L * value: Front side 24.78, Back side 49.32
L * value after treatment: Front side 23.73, Back side 47.40
As described above, the L * value decreased by 1 or more on both sides.
<B * value>
Untreated b * value: Front surface-12.95, Back surface-5.85
B * value after treatment: Front surface-15.04, Back surface-7.46
As described above, the b * value decreased on both sides.

  The results obtained here are shown in the graph of FIG. 4 (L * value during jeans processing) and FIG. 5 (b * value during jeans processing).

For reference, the devices and drugs used in the above examples are summarized below.
(Equipment related)
・ Nippon Denshoku Industries Co., Ltd. colorimetric color difference meter color meter ZE6000 (measurement of L * value, a * value, b * value)
・ TAGOTO METER TM-8 manufactured by Daiei Scientific Instruments Co., Ltd.
・ Hitachi, Ltd. 2-tank electric washing machine PS-H35L (washing equipment)

(Drug-related)
・ Raster AB-8K 30% product (deep coloring agent) manufactured by Kotani Chemical Co., Ltd.
・ Liquitint (low dyeing dye) manufactured by Milliken Japan
NS Farfa Japan Co., Ltd. Concentrated softener Farfa Trip Dubai

(Cloth related)
・ Test cloth EMPA 132 (black cotton cloth) (standard cloth) manufactured by Swiss Federal Institute for Materials Testing
・ Hanes (Black Cotton T-shirt) made by Haynes Brands Inc.

Claims (17)

  A fading-removing agent comprising at least a deep colorant (A) and a low dyeing colorant (B).   The fading eliminating agent according to claim 1, wherein the deep colorant (A) contains a low refractive index resin.   The fading eliminating agent according to any one of claims 1 and 2, wherein the low refractive index resin is selected from a fluororesin, a Si resin, silicone, siloxane, an acrylic resin, a urethane resin, or a mixture thereof.   The fading-removing agent according to any one of claims 1 to 3, wherein the low dyeing dye (B) has a structure in which a polymer is added to a general dye.   The low dyeing dye (B) has a structure in which a polymer having an alkyl, alkoxy, amino, hydroxyl, and carboxyl group is added to a general dye. The fading-removing agent according to item.   The low dyeing dye (B) is a benzodiflurane, methine, triphenylmethane, naphthalimides, pyrazoles, naphthoquinone, a dye containing an anthraquinone structure; and mono-azo dyes and di-azo dyes, and The fading-removing agent according to any one of claims 1 to 5, which is selected from a mixture.   The color fading eliminating agent according to any one of claims 1 to 6, wherein the low refractive index resin is contained in an amount of 5% to 30% (relative to the entire color fading eliminating agent).   The fading-removing agent according to any one of claims 1 to 7, wherein the low dyeing pigment is contained in an amount of 0.01 to 1% (relative to the entire fading-removing agent).   The color fading eliminating agent according to any one of claims 1 to 8, wherein the color of the low dyeing pigment is black, dark gray, ultramarine blue, dark green, or blue.   The fading eliminating agent according to any one of claims 1 to 9, further comprising a detergent component.   The fading eliminating agent according to any one of claims 1 to 10, wherein the detergent component is contained in an amount of 0.1% to 75% (relative to the entire fading eliminating agent).   The fading eliminating agent according to any one of claims 1 to 11, further comprising a finish component.   The finish component is a surfactant, a cleaning agent, a softening agent, a curing agent, a texture modifier, an anti-wrinkle agent, a shape maintaining agent, a water absorbing material, a fiber protective material, a water repellent, an antibacterial agent (antiviral agent) ), Disinfectant (including antiviral agent), insect repellent, deodorant, deodorant, antifouling agent, color former, and perfume. The fading-removing agent according to item.   The fading-removing agent according to any one of claims 1 to 13, wherein the finish component is contained in an amount of 0.1% to 75% (relative to the entire fading-removing agent).   The fading elimination effect continues from the point of L * value, when the said fading elimination agent is undiluted | stock_diluted | diluted | diluted suitably and is used for washing | cleaning of the clothes of 1 time or more and 20 times or less. The fading eliminating agent of any one of these.   Detergent for clothes containing the fading eliminating agent of any one of Claims 1-15.   The finishing agent for clothes containing the fading elimination agent of any one of Claims 1-15.

Images