JP5079234B2 - Liquid laundry aid composition - Google Patents

Description

  The present invention relates to a liquid laundry aid composition that is used supplementarily when washing textile products with laundry detergent.

In recent years, due to the increase in cleanliness, not only the removal of dirt but also deodorization and further deodorization have been demanded as effects when washing textile products.
Deodorization is to remove or decompose the odor that has already occurred, and deodorization is to suppress the generation of odor. Therefore, when a substance having a deodorizing effect is used for washing textile products, it is preferable to use it together with a laundry detergent. On the other hand, when a substance having a deodorizing effect is used, it is not used at the time of washing. It is preferred to use it at the time of rinsing to ensure that this material adsorbs well to the textile.
For this reason, products with a deodorizing effect include products with a deodorizing effect added to bleach used together with laundry detergent during washing, while products with a deodorizing effect Has added a substance having a deodorizing effect to the softening agent used at the time of rinsing.

  However, when these products are used, a deodorizing effect and a deodorizing effect can be obtained respectively. However, when these effects are to be obtained at the same time, in addition to the laundry detergent, Each of these must be weighed and added to the laundry, which is very time consuming. Further, even when the bleaching effect and the softening effect are not particularly required, the above-described bleaching agent and softening agent are used to obtain the deodorizing effect and the deodorizing effect, which is uneconomical.

  It is considered that such a problem can be solved if there is a substance that can be adsorbed satisfactorily to a textile product and exhibit a deodorizing effect even when used with a laundry detergent at the time of washing instead of rinsing. However, the cationic substances that have been conventionally used as substances having a deodorizing effect, although easily adsorbed on textile products, have the problem of forming an anionic surfactant and an anion-cation complex contained in laundry detergents. It was. When an anion-cation complex is formed, not only the adsorption of the cationic substance to the fiber is inhibited and the deodorizing effect cannot be obtained, but also the detergency may be lowered.

Therefore, as a method without such a fear, a method for obtaining a deodorizing effect by using a silver compound such as antibacterial silver or silver salt has been studied.
For example, Patent Document 1 discloses a method of using a composition containing a silver salt at the time of washing in order to impart antibacterial properties to a textile product.
However, when a composition containing only a silver salt is applied directly to a fiber product such as cotton fiber, silver ions are adsorbed at a high concentration on the application part, and as a result, the sun is dried after washing. Irradiation with ultraviolet rays causes a problem that the adsorbed silver ions are discolored and the fiber product is also discolored.

On the other hand, for example, Patent Document 2 discloses a detergent and a laundry aid using a silver chloro complex salt. According to this, since silver ions form a complex salt, it is considered that the possibility of discoloration of the above-described fiber product is reduced.
However, it is said that a high concentration of chloride ions is required to dissolve the complex salt in the liquid composition (see, for example, Patent Document 3). When a high concentration salt is present in the composition, there is a high possibility that a problem such as separation of the surfactant in the composition will occur in addition to the problem that the salt itself precipitates at a low temperature. Therefore, it is considered difficult to actually provide a liquid composition having a sufficient deodorizing effect and deodorizing effect and having a uniform composition by using a complex salt.

In addition, for example, Patent Document 4 discloses a cleaning / antibacterial property imparting agent using silver fine particles. When such silver fine particles are used, it is considered that the possibility of discoloration of the textile product as described above is very low.
However, the rate at which the silver fine particles contained in the washing liquid are adsorbed to the fibers during washing is low. In this case, it is thought that antibacterial properties are expressed by elution of silver ions contributing to antibacterial from silver fine particles, but the amount of silver ions eluted from the silver fine particles adsorbed on the fiber is very small. It is considered that sufficient antibacterial properties cannot be obtained.

In addition, for example, Patent Documents 5 to 9 disclose cleaning compositions containing silver ions and the like. However, even with the techniques disclosed in these, it is considered difficult to suppress discoloration of the textile product.
JP 09-3492 A JP 2001-238937 A Japanese Patent Laid-Open No. 10-182326 JP 2000-178595 A JP 2001-172696 A JP 2001-172697 A JP 2001-172698 A Japanese Patent Laid-Open No. 06-234997 Japanese Patent Laid-Open No. 09-183997

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a liquid laundry aid composition that exhibits a high deodorizing effect and a deodorizing effect and is unlikely to cause discoloration of fibers.

Liquid laundry aid composition of the present invention is formulated to (a) and anionic and / or nonionic surfactant, (b) a water-soluble silver salt, and the (c) basic amino acid water, wherein (C) The basic amino acid is one or more selected from the group consisting of histidine, lysine and arginine .
(C) Histidine is used alone as the basic amino acid, (c) the number of moles of the basic amino acid is [AA], and (b) the number of moles of silver ions contained in the water-soluble silver salt is [ When [Ag], [AA] / [Ag] is preferably 3 or more.
Arginine is used alone as the (c) basic amino acid, the number of moles of the (c) basic amino acid is [AA], and the number of moles of silver ions contained in the (b) water-soluble silver salt is [ When [Ag], [AA] / [Ag] is preferably 10 or more.
Lysine is used alone as the (c) basic amino acid, the molar number of the (c) basic amino acid is [AA], and the molar number of silver ions contained in the (b) water-soluble silver salt is [ When [Ag], [AA] / [Ag] is preferably 15 or more.
It is preferable that the content of the (b) water-soluble silver salt is 0.001 to 1% by mass, and the content of the (c) basic amino acid is 0.005 to 10% by mass.

  ADVANTAGE OF THE INVENTION According to this invention, while exhibiting a high deodorizing effect and a deodorizing effect, the liquid washing adjuvant composition which is hard to cause discoloration of a fiber can be provided.

Hereinafter, the present invention will be described in detail.
The liquid laundry aid composition of the present invention (hereinafter sometimes simply referred to as a composition) comprises (a) an anionic surfactant and / or nonionic surfactant, (b) a water-soluble silver salt, (c) ) Basic amino acids and water.

  The (a) anionic surfactant and / or nonionic surfactant (hereinafter sometimes referred to as the component (a)) contained in the liquid laundry aid composition of the present invention is water and oily in an aqueous solution. An anionic and / or nonionic substance having a function of lowering the interfacial tension with the substance. By blending such a component (a), other than odorous components such as body odor that cannot be removed by washing detergent alone at the time of washing, it removes dirt stains containing such odorous components and exhibits a deodorizing effect. Can be made. Also, the removed dirt / stain includes sebum that remains in the textile after washing and becomes a source of odor generation. Therefore, by removing the dirt and reducing the source of such odors, the deodorizing effect, that is, the unpleasant odor that occurs when the textile is dried or left in a humid environment, etc. And the effect which suppresses generation | occurrence | production of the body odor etc. which arise at the time of wear of a textile product expresses.

Examples of the anionic surfactant used in the component (a) include linear alkylbenzene sulfonate, α-olefin sulfonate, α-sulfo fatty acid ester salt, alkyl sulfate, polyoxyethylene alkyl ether sulfate, and higher fatty acid. Examples include salts and polyoxyethylene alkyl ether carboxylates.
The linear alkylbenzene sulfonate preferably has 10 to 14 carbon atoms in the alkyl group, and the α-olefin sulfonate preferably has 10 to 18 carbon atoms in the alkenyl group, α-sulfo fatty acid ester salt The alkyl group preferably has 10 to 18 carbon atoms.
The alkyl sulfate preferably has 10 to 18 carbon atoms in the alkyl group, and the polyoxyethylene alkyl ether sulfate has 10 to 18 carbon atoms in the alkyl group and an average addition mole number of ethylene oxide of 1 to 5 The higher fatty acid salt preferably has 12 to 18 carbon atoms in the alkyl group, and the polyoxyethylene alkyl ether carboxylate has 10 to 18 carbon atoms in the alkyl group, and average addition of ethylene oxide. Those having 1 to 5 moles are preferred.

Among these, linear alkylbenzene sulfonate, α-olefin sulfonate, and polyoxyethylene alkyl ether sulfate have good deodorizing and deodorizing effects, and the appearance uniformity of the resulting composition is It is preferable in terms of excellent transparency.
Counter ions of these salts include alkali metals such as sodium and potassium, alkaline earth metals such as magnesium, alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine. From the viewpoint of properties, sodium, potassium and alkanolamine are preferred.
Examples of such commercially available linear alkylbenzene sulfonates include α-olefin sulfonates such as “Lypon LS-250” (manufactured by Lion Corporation), “Taika Power LN2065” (manufactured by Teika Corporation), and the like. Examples of the polyoxyethylene alkyl ether sulfate include “Tipapol NE1270” and “Tacapol NE1230” (both manufactured by Teica Co., Ltd.).
Further, the anionic surfactant can be used after being blended in the composition as an acid and then neutralized by adding an alkali agent such as an alkali metal salt to the composition.
Moreover, these anionic surfactants may be used individually by 1 type, or may use 2 or more types together.

Nonionic surfactants used in component (a) include polyoxyalkylene alkyl ethers, methoxy polyoxyalkylene alkanoates, fatty acid diethanolamides, fatty acid monoethanolamides, alkyl polyglycosides, alkyl polyglyceryl ethers, alkyl polyglyceryl esters, and the like. Can be mentioned.
The polyoxyalkylene alkyl ether is preferably an alkyl group having 10 to 18 carbon atoms, an average addition mole number of ethylene oxide of 4 to 50, and an average addition mole number of propylene oxide of 0 to 5, preferably methoxypolyoxy As the alkylene alkanoate, an alkyl group having 10 to 18 carbon atoms, an average addition mole number of ethylene oxide of 4 to 50, and an average addition mole number of propylene oxide of 0 to 5 is preferable.
The fatty acid diethanolamide preferably has 10 to 18 carbon atoms in the alkyl group, and the fatty acid monoethanolamide preferably has 10 to 18 carbon atoms in the alkyl group.
The alkyl polyglycoside preferably has 8 to 18 carbon atoms in the alkyl group and an average added mole number of glucose units of 1 to 10, and the alkyl polyglyceryl ether has 8 to 18 carbon atoms in the alkyl group and has a glycerin unit. The average number of added moles is preferably 1 to 10, and the alkyl polyglyceryl ester is preferably an alkyl group having 8 to 18 carbon atoms and an average added mole number of glycerol units of 1 to 10.

Among these, polyoxyalkylene alkyl ether is preferable in terms of good deodorizing effect and deodorizing effect, and excellent in uniformity and transparency of the appearance of the resulting composition, and polyoxyethylene alkyl ether is particularly preferable. .
The polyoxyethylene alkyl ether preferably has an alkyl group having 12 to 18 carbon atoms and an average addition mole number of ethylene oxide of 5 to 30, and an alkyl group having 12 to 16 carbon atoms and an average of ethylene oxide. Those having an addition mole number of 7 to 25 are more preferable, and those having an alkyl group having 12 to 14 carbon atoms and an average addition mole number of ethylene oxide of 10 to 20 are particularly preferable.
Examples of such commercially available polyoxyethylene alkyl ethers include “LEOX CC-90”, “LEOCOL SC-90”, “LEOCOL SC-120”, “LEOCOL TD-150” (manufactured by Lion Corporation), “EMALEX 705”. “EMALEX 715”, “EMALEX 720” (manufactured by Nippon Emulsion Co., Ltd.), and the like.
Moreover, these nonionic surfactants may be used individually by 1 type, or may use 2 or more types together.

  The lower limit of the content of the component (a) in the composition is preferably 1% by mass, more preferably 5% by mass, still more preferably 10% by mass, and the upper limit is preferably 50% by mass, more preferably 40% by mass. %, More preferably 30% by mass. When the content of the component (a) is within this range, the resulting composition has a better deodorizing effect and deodorizing effect, and is more excellent in appearance uniformity and transparency.

  As the component (a), either an anionic surfactant or a nonionic surfactant may be used alone, or these may be used in combination, but the deodorizing effect and deodorizing effect are particularly good, and the appearance It is preferable to use a nonionic surfactant from the viewpoint that a composition excellent in uniformity and transparency can be easily obtained.

  The (b) water-soluble silver salt (hereinafter sometimes referred to as component (b)) contained in the composition of the present invention is a salt composed of silver ions and anionic ions and dissociates in water. It is a substance that can release silver ions. When such a composition containing the component (b) is used at the time of washing a textile product, the silver ion derived from the component (b) or a complex salt of the silver ion and the later-described (c) basic amino acid is adsorbed on the fiber. To give antibacterial properties to the textile after washing. As a result, degradation of dirt such as sebum remaining on the fiber product by microorganisms is suppressed. For example, unpleasant odors and fibers generated when the fiber product is dry or when the fiber product is left in a humid environment. A high deodorizing effect that can suppress the generation of body odor and the like generated when the product is worn is exhibited.

(B) The degree of water solubility of the water-soluble silver salt is not particularly limited as long as the resulting composition is uniform in appearance and maintains transparency, but the solubility in purified water at 20 ° C. is 0.00. The content is preferably 001% by mass or more, more preferably 0.01% by mass or more, and particularly preferably 0.1% by mass or more.
Specific examples of (b) water-soluble silver include silver sulfate, silver nitrate, silver acetate, silver fluoride, and silver perchlorate. Silver sulfate is preferred from the viewpoint of safety and odor.

The lower limit of the content of component (b) in the composition is preferably 0.001% by mass, more preferably 0.01% by mass, still more preferably 0.05% by mass, and the upper limit is preferably 1% by mass. More preferably, it is 0.5 mass%, More preferably, it is 0.2 mass%. When the content of the component (b) is within this range, the resulting composition is particularly preferable because the deodorization effect is particularly good, the appearance is uniform and transparent, and the safety is good.
(B) As a component, water-soluble silver salt may be used individually by 1 type, or may be used together 2 or more types.

  The (c) basic amino acid (hereinafter sometimes referred to as the (c) component) contained in the composition of the present invention is an isoelectric point of 7.alpha. 5 or more substances. Such component (c) forms a water-soluble complex with silver ions released from the water-soluble silver salt of component (b) in the composition. As a result, the uniformity and transparency of the appearance of the composition are maintained, and even if the composition is applied directly to a textile product and washed, and then the laundry is sun-dried, the fiber discoloration caused by ultraviolet irradiation An excellent fiber discoloration suppressing effect that hardly occurs is exhibited. The component (c) preferably has an isoelectric point of 7.5 or more and 11 or less.

(C) Examples of basic amino acids include histidine, lysine, and arginine. Among these, histidine and arginine are preferable, and histidine is particularly preferable from the viewpoint of the effect of suppressing fiber discoloration.
The steric structure of the amino acid is not particularly limited, and any optical isomer can be used as the component (c).

The lower limit of the content of the component (c) in the composition is preferably 0.005% by mass, more preferably 0.05% by mass, still more preferably 0.25% by mass, and the upper limit is preferably 10% by mass. More preferably, it is 5 mass%, More preferably, it is 2 mass%. When the content of the component (c) is within this range, the resulting composition exhibits a particularly excellent fiber discoloration suppressing effect, and can maintain good uniformity and transparency of the appearance of the composition. ) The amount of component used is also moderate and preferable from the economic aspect.
As the component (c), basic amino acids may be used alone or in combination of two or more.

The ratio of the component (b) to the component (c) in the composition is as follows: (c) the number of moles of basic amino acid is [AA], and (b) the moles of silver ions contained in the water-soluble silver salt. When the number is [Ag], when histidine is used alone as the component (c), [AA] / [Ag] is preferably 3 or more, more preferably 5 or more. Further, when arginine is used alone as the component (c), [AA] / [Ag] is preferably 10 or more, more preferably 20 or more. Further, when lysine is used alone as the component (c), [AA] / [Ag] is preferably 15 or more, more preferably 30 or more.
When the ratio of the component (b) to the component (c) is within such a range, the fiber discoloration suppressing effect of the composition, the appearance uniformity and the transparency are more excellent, which is preferable.

  By blending the component (a), the component (b), and the component (c) described above in water, a liquid detergent composition having excellent appearance uniformity and transparency can be obtained. As water, tap water, purified water, distilled water and the like can be used, but purified water is preferred from the viewpoint of uniformity of the appearance of the composition, transparency, and economical aspect.

  The amount of water in the composition is not particularly limited, but the lower limit is preferably 50% by mass, more preferably 60% by mass, still more preferably 70% by mass, and the upper limit is preferably 99% by mass, more preferably. It is 95 mass%, More preferably, it is 90 mass%. When the amount of water is within this range, the composition is excellent in uniformity of appearance, transparency and usability, which is preferable.

In the composition of the present invention, other optional components can be blended within a range not impairing the effects of the present invention.
Optional components include, for example, cationic surfactants such as alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylbenzyldimethylammonium salts, and alkylpyridinium salts; amphoteric surfactants such as alkylcarboxybetaines, alkylsulfobetaines, and alkyldimethylamine oxides. Agents; chelating agents such as citrate, hydroxyethane diphosphonate, ethylenediaminetetraacetate, polyacrylate; lower alcohols such as ethanol and isopropanol; ethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, polyalkylene glycol Glycol solvents such as butyl ether and polyalkylene glycol phenyl ether; p-toluenesulfonate, benzoate Aromatic solvents such as: hydrogen peroxide, oxidizing agents such as sodium hypochlorite; bleach activators such as alkanoyloxybenzene sulfonates and alkanoyloxybenzene carboxylates; thickeners such as polyvinylpyrrolidone and carboxyvinyl polymers Agents; recontamination preventive agents such as carboxymethyl cellulose and polyalkylene terephthalic acid / polyalkylene glycol copolymers; enzymes such as protease, lipase, amylase and cellulase; flavors as described in, for example, JP 2002-146399 A A fragrance composition containing components, solvents, stabilizers, and the like; pH adjusters such as sulfuric acid and sodium hydroxide.

  The blending amount of these optional components is not particularly limited, but the upper limit is preferably 10% by mass, more preferably 5% by mass, and still more preferably 2% by mass. These optional components may be used alone or in combination of two or more.

  The pH of the composition of the present invention is not particularly limited as long as the appearance uniformity is maintained, but weak acidity, neutrality and weak alkalinity are preferable from the viewpoint of safety.

The composition of the present invention is stored and transported in a plastic container or the like.
Examples of the plastic container include a bottle container and a standing pouch for refilling. Examples of the bottle container include those described in JP-A-2001-3100, and examples of the material include resins such as polyethylene, polypropylene, and polyethylene terephthalate. In addition, it is preferable from the viewpoint of the storage stability of the composition that an ultraviolet absorbent or the like is kneaded into these resins so that transmission of ultraviolet rays is suppressed as much as possible. Examples of the standing pouch include those described in JP-A-2000-7211, and examples of the material include linear low density polyethylene having a thickness of about 100 to 250 μm and stretched nylon having a thickness of about 15 to 30 μm. In particular, it is preferable from the viewpoint of the storage stability of the composition that an aluminum vapor deposition layer or the like is sandwiched between the layers and the transmission of ultraviolet rays is suppressed as much as possible.

The composition of the present invention is used as an auxiliary when washing with a laundry detergent, and the method of use is not particularly limited. For example, the composition of the present invention is used for washing water. , A method of adding this composition together with a laundry detergent, preparing this diluted water by adding this composition to water, pre-soaking the textiles in this diluted water, and then washing as usual with the laundry detergent And a method in which the composition is applied directly to a portion of the textile product where dirt is adhered, and then the textile product is washed as usual.
Among these exemplified methods of use, when the composition is used in water as in the former two methods, the concentration of the water, that is, the composition in the cleaning liquid is not particularly limited, but the lower limit is The upper limit is preferably 1% by weight, more preferably 0.5% by weight, and still more preferably 0.2% by weight. % By mass. When the concentration of the composition in the cleaning liquid is within this range, the deodorizing effect and the deodorizing effect are excellent, and it is favorable from the economical aspect.

  As described above, the composition of the present invention can exhibit a high deodorizing effect and a deodorizing effect, and has an excellent fiber discoloration suppressing effect that hardly causes fiber discoloration even when applied directly to a fiber product. For example, it can be used for a wide range of textile products such as shirts, blouses, T-shirts, polo shirts, jeans, bath towels, handkerchiefs, table cloths, place mats, curtains and sofa covers. Moreover, there is no restriction | limiting in particular also in the fiber raw material of these fiber products, For example, it can use for any of the fiber products which consist of natural fibers, such as cotton, wool, hemp, synthetic fibers, such as polyester, nylon, and an acryl.

Next, although an Example and a comparative example demonstrate this invention concretely, this invention is not limited to the following Example etc.
[Example 1]
Liquid laundry assistant compositions having the compositions shown in Table 1 were prepared and evaluated by the following methods. In addition, content of each component shows content as a pure part, and all a unit is the mass%. Moreover, the sum total of each component and the quantity of purified water is set to 100%.

<Appearance uniformity evaluation method>
The composition obtained in Example 1 was sealed in a 50 mL screw vial and the appearance after standing at 25 ° C. for 1 day was visually evaluated according to the following criteria. The results are shown in Table 1.
○: Uniform transparent △: Uniform turbidity ×: Precipitation or phase separation

<Deodorization evaluation method>
Socks (100% cotton, 30g on one side) were worn by three adult men, and they were asked to work for 8 hours in a room at 25 ° C while wearing worn-out athletic shoes. And the socks after that were used for evaluation as a sample.
In each wearer, about one side of the socks, it was washed with a cleaning liquid concentration of 0.067% by mass using only a laundry detergent (top, manufactured by Lion Co., Ltd.) as a blank sample, and the other one was an evaluation sample. In addition to the laundry detergent, the composition prepared in Example 1 was washed with a composition added so that its concentration was 0.133% by mass.
As washing conditions, using Terg-O-Tometer (manufactured by US TESTING) under conditions of 120 rpm and 900 mL of tap water (20 ° C., 3 ° DH) for 10 minutes, the water content was dehydrated to 100% by mass. Then, after rinsing for 3 minutes, dehydration was repeated twice until the water content was 100% by mass. After the final dehydration, the evaluation fabric was dried in a room at 25 ° C. and 45% RH.
The odor intensity of the evaluation sample after drying was evaluated by comparison with the blank sample. The odor intensity was sensory-evaluated by 10 panelists for each sample of 3 wearers. About each sample for evaluation, 10 panelists evaluated by the following 5 steps, the average value of 10 persons was calculated, and it showed in Table 1 as a deodorizing evaluation result of the composition of Example 1.
5 points: Equivalent to blank 4 points: Slightly weaker than blank 3 points: Slightly weaker than blank 2 points: Clearly weaker than blank 1 point: Almost odorless

<Odor control method>
A towel (100% cotton, 80 g) was handed over to three adult males one by one, and the face and neck were rubbed evenly over the entire towel every hour and used for 8 hours. In this way, the towel was deposited almost uniformly on the entire surface of the towel and was cut into 8 equal parts and used as a sample for evaluation.
The sample for three users (1/8 towel x 3 sheets) washes using only a laundry detergent (Top, manufactured by Lion Co., Ltd.) under the same cleaning conditions as the above deodorization evaluation method. The sample was washed at a concentration of 0.067% by mass to obtain a blank sample. Further, in addition to the laundry detergent, the sample prepared for Example 3 was added so that the concentration was 0.133% by mass. 3 sheets) were washed and used as samples for evaluation.
After the final dehydration, a total of 6 blank samples and evaluation samples were sealed in zippered plastic bags and left at 25 ° C. for 3 days.
The odor intensity of the sample for evaluation after being left was compared with the sample for blank by the same method and standard as the above-mentioned deodorizing property evaluation method. For each sample for evaluation, the average value of 10 panelists was calculated and shown in Table 1 as the deodorant evaluation results of the composition of Example 1.

<Fiber discoloration suppression effect>
A towel (100% cotton, 80 g) cut into 8 equal parts was used as a sample.
Of these, 0.4 g / sheet of the composition of Example 1 was applied to one sample, and washes using a laundry detergent (Top, manufactured by Lion Co., Ltd.) under the same cleaning conditions as in the above deodorization evaluation method. Washing was performed at a concentration of 0.067% by mass. After the final dehydration, the evaluation cloth was sun-dried in a sunny day until the total amount of sunlight irradiation reached 0.1 MJ / m ² . About the sample after sun-drying, ten panelists sensory-evaluated the grade of the discoloration of the part which apply | coated the composition on the following references | standards, and the average value is shown in Table 1 as the fiber discoloration inhibitory effect of the composition of Example 1. It was described in.
5 points: very dark 4 points: dark 3 points: slightly thin 2 points: fairly thin
1 point: No discoloration

[Examples 2 to 8, Comparative Examples 1 to 7]
Liquid laundry assistant compositions having the compositions shown in Tables 1 and 2 were prepared and evaluated in the same manner as in Example 1.

In the table, the components (a) to (c) indicated by abbreviations are as follows. Moreover, all the carbon number C shown below is carbon number of an alkyl group.
a-1: Sodium straight-chain dodecylbenzenesulfonate (Taika Power LN2065, manufactured by Teika Co., Ltd.)
a-2: Sodium α-olefin sulfonate (C14-18, Lipolane PB-800, manufactured by Lion Corporation)
a-3: Sodium polyoxyethylene alkyl ether sulfate (C12-14, EO = 3, Teicapol NE1230, manufactured by Teika Co., Ltd.)
a-4: Polyoxyethylene dodecyl ether (EO = 5, EMALEX 705, manufactured by Nippon Emulsion Co., Ltd.)
a-5: Polyoxyethylene alkyl ether (C12-14, EO = 9, Leocoal SC-90, manufactured by Lion Corporation)
a-6: Polyoxyethylene dodecyl ether (EO = 15, EMALEX 715, manufactured by Nippon Emulsion Co., Ltd.)
b-1: Silver sulfate (special grade reagent, manufactured by Kanto Chemical Co., Inc.)
b-2: Silver nitrate (reagent special grade, manufactured by Kanto Chemical Co., Inc.)
b-3: Copper sulfate (reagent special grade, manufactured by Kanto Chemical Co., Ltd., comparative example)
c-1: L-histidine (special grade reagent, manufactured by Kanto Chemical Co., Inc., isoelectric point: 7.6)
c-2: L-arginine (reagent special grade, manufactured by Kanto Chemical Co., Inc., isoelectric point: 10.8)
c-3: L-lysine (reagent special grade, manufactured by Tokyo Chemical Industry Co., Ltd., isoelectric point: 9.7)
c-4: L-methionine (reagent special grade, manufactured by Kanto Chemical Co., Inc., isoelectric point: 5.7, comparative example)
c-5: L-glutamine (special grade reagent, manufactured by Kanto Chemical Co., Inc., isoelectric point: 5.7, comparative example)
Fragrance: Fragrance composition A described in Tables 11 to 18 described in JP-A-2002-146399

As is clear from the table, the composition of each example was excellent in deodorizing effect and deodorizing effect, had a fiber discoloration suppressing effect, and had good appearance uniformity.

Claims (5)

(A) an anionic surfactant and / or nonionic surfactant, (b) a water-soluble silver salt, and (c) a basic amino acid are blended in water ,
The (c) basic amino acid is at least one selected from the group consisting of histidine, lysine, and arginine . Histidine is used alone as the basic amino acid (c),
When (c) the number of moles of the basic amino acid is [AA] and (b) the number of moles of silver ions contained in the water-soluble silver salt is [Ag], [AA] / [Ag] is The liquid laundry aid composition according to claim 1, wherein the composition is 3 or more. Arginine is used alone as the basic amino acid (c),
When (c) the number of moles of the basic amino acid is [AA] and (b) the number of moles of silver ions contained in the water-soluble silver salt is [Ag], [AA] / [Ag] is The liquid laundry assistant composition according to claim 1, wherein the composition is 10 or more. Lysine is used alone as the basic amino acid (c),
When (c) the number of moles of the basic amino acid is [AA] and (b) the number of moles of silver ions contained in the water-soluble silver salt is [Ag], [AA] / [Ag] is The liquid laundry assistant composition according to claim 1, wherein the composition is 15 or more. The content of the (b) water-soluble silver salt is 0.001 to 1% by mass, and the content of the (c) basic amino acid is 0.005 to 10% by mass. The liquid laundry adjuvant composition as described in any one of -4.