JP2011168732A - Liquid detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid detergent composition which exhibits excellent detergency to sebaceous stains or the like and has excellent dilution-solubility in cold water and deodorant properties when used. <P>SOLUTION: The liquid detergent composition contains: (A) 30-70 mass% of a specific nonionic surfactant; (B) a specific nonionic compound; (C) one or more water-soluble salt selected from water-soluble silver salt, water-soluble copper salt and water-soluble zinc salt; and (D) water; wherein the mass ratio ((A)/(B)) is 100/60 to 100/5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid detergent composition.

  As a cleaning composition, a granular cleaning composition and a liquid cleaning composition are mainly mentioned. The liquid detergent composition is superior to the granular detergent composition in that it can be applied directly to the soiled part and there is no dusting. However, the liquid detergent composition achieves both cleaning power and liquid stability. Is an important technical issue. First, a calcium scavenger such as zeolite, which is generally blended for the purpose of improving detergency in a granular detergent composition, is difficult to blend in a sufficient amount in terms of liquid stability. Alkyl ether sulfates and nonionic surfactants that are excellent in hard water resistance are mainly used.

  In recent years, awareness of the environment has increased, and there has been a strong demand for the appearance of a detergent composition that has less impact on the environment. The so-called concentrated type cleaning composition, which has a higher concentration of cleaning components than the conventional cleaning composition, reduces the size of the cleaning composition itself, reduces the amount of resin in the container, reduces transportation costs, and reduces waste after use. It is considered to be very effective in reducing the environmental load such as reduction.

  However, in a normal liquid cleaning composition, when the concentration of the surfactant as a cleaning component is increased, there is a problem that viscosity increase or gelation occurs and the usability is remarkably impaired. This is because an increase in the concentration of the surfactant forms a remarkably high phase such as liquid crystal or crystal in the composition. In addition, in such a high-concentration surfactant system, a method for obtaining a low-viscosity composition by adding a large amount of a solvent, a solubilizing agent, or the like is generally known, but the composition is water when diluted with water, particularly cold water. When diluted, the diluted composition forms a liquid crystal, causing poor solubility, and when the surfactant concentration is increased, the composition is likely to solidify during low-temperature storage. There was a problem with sex.

  Patent Documents 1 to 3 describe concentrated liquid detergent compositions containing specific nonionic surfactants, but have problems in stability at low temperatures and solubility in cold water.

  It is known that bleaching power is improved by adding hydrogen peroxide to a liquid detergent composition. For example, Patent Document 4 discloses a composition containing hydrogen peroxide having an increased surfactant content. However, the surfactant content is 28% by mass or less, and the nonionic surfactant is 18% by mass. % Or less. In addition, Patent Documents 5 to 7 describe a concentrated type liquid detergent composition that is excellent in hydrogen peroxide stability and highly blended with a surfactant. There was a problem.

  On the other hand, it has been known that sebum and the like easily remain even after washing on clothes to which sebum such as sebum dirt adheres, and it is known that a bad odor and bad odor originating from bacteria are generated in the drying process after washing. As antibacterial agents, water-soluble silver and the like described in Patent Documents 8 and 9 are known, and Patent Document 10 describes a liquid detergent composition using these. However, there are problems in stability at low temperatures and solubility in cold water when a concentrated liquid detergent composition is used.

JP 2008-7705 A JP 2008-7706 A JP 2008-7707 A Special table 2001-501646 gazette JP 2007-177145 A JP 2008-308581 A JP 2008-332364 A JP 2009-235058 A JP 2009-1636 A International Publication No. 2009/110590 Pamphlet

  An object of the present invention is to provide a liquid detergent composition having good detergency such as sebum stains, and excellent dilution and solubility in cold water and deodorizing properties during use.

This invention contains (A) component 30-70 mass%, (B) component, (C) component, and (D) component, and the mass ratio of (A) component and (B) component [(A) component / (B) component] relates to a liquid detergent composition having a ratio of 100/60 to 100/5.
Component (A): Nonionic surfactant represented by the following general formula (I) R ¹ —X — [(EO) _n / (PO) _m ] —R ² (I)
(Wherein R ¹ is a hydrocarbon group, —X— is —O— or —COO—, R ¹ —X— is a total of 8 to 22 carbon atoms, EO is an ethyleneoxy group, PO is Represents a propyleneoxy group, n and m represent the average number of added moles, n is a number of 5 to 25, m is a number of 0 to 5 (0 or more and 5 or less), and R ² is a hydrogen atom or (It is a hydrocarbon group having 1 to 3 carbon atoms. “/” Indicates that EO and PO may be bonded to either random or block.)
Component (B): a nonionic compound represented by the following general formula (II) R ³ -O - _{[(EO) n1 / (PO)} m1 ] -H (II)
(In the formula, R ³ is a hydrocarbon group having 1 to ³ carbon atoms. EO represents an ethyleneoxy group, PO represents a propyleneoxy group, n1 and m1 represent an average addition mole number, and n1 is 5 to 25. And m1 is a number from 0 to 5. “/” indicates that EO and PO may be combined with either random or block.)
Component (C): One or more water-soluble salt selected from water-soluble silver salt, water-soluble copper salt and water-soluble zinc salt (D) Component: water

  According to the present invention, it is possible to obtain a liquid detergent composition that has good detergency for sebum stains and the like, and is excellent in dilution solubility and deodorization in cold water during use.

[Component (A)]
The component (A) of the present invention is a nonionic surfactant represented by the general formula (I).
R ¹ -X - _{[(EO) n / (PO)} m ] -R ² (I)
(Wherein R ¹ is a hydrocarbon group, —X— is —O— or —COO—, R ¹ —X— is a total of 8 to 22 carbon atoms, EO is an ethyleneoxy group, PO is Represents a propyleneoxy group, n and m represent the average number of added moles, n is a number of 5 to 25, m is a number of 0 to 5. R ² is a hydrogen atom or a carbon atom having 1 to 3 carbon atoms. (It is a hydrogen group. “/” Indicates that EO and PO may be bonded to either random or block.)

In general formula (I), the hydrocarbon group represented by R ¹ may be any of linear, branched, primary, secondary, etc., but is preferably linear primary. From the viewpoint of cleaning performance, R ¹ —X— preferably has 10 to 20 carbon atoms, more preferably 12 to 18 carbon atoms, still more preferably 12 to 16 carbon atoms, and particularly preferably 12 to 14 carbon atoms.

In general formula (I), from the viewpoint of foam control, R ² is preferably a hydrocarbon group having 1 to 3 carbon atoms, more preferably a hydrocarbon group having 1 or 2 carbon atoms, and further preferably a methyl group. N is preferably a number of 8 to 20, more preferably a number of 10 to 18, and m is preferably a number of 0 to 3, more preferably a number of 1 to 2. EO and PO may be random addition or block addition, and block addition is more preferable.

[(B) component]
The component (B) of the present invention is a nonionic compound represented by the following general formula (II).
R ³ -O - _{[(EO) n1 / (PO)} m1 ] -H (II)
(In the formula, R ³ is a hydrocarbon group having 1 to ³ carbon atoms. EO represents an ethyleneoxy group, PO represents a propyleneoxy group, n1 and m1 represent an average addition mole number, and n1 is 5 to 25. And m1 is a number from 0 to 5. “/” indicates that EO and PO may be combined with either random or block.)

In the general formula (II), R ³ is a hydrocarbon group having 1 to 3 carbon atoms, preferably a methyl group or an ethyl group, more preferably a methyl group. EO represents an ethyleneoxy group, PO represents a propyleneoxy group, n1 and m1 represent the average number of added moles, and n1 is a number of 5 to 25, preferably a number of 8 to 20, more preferably a number of 10 to 18. Yes, m1 is a number from 0 to 5, preferably a number from 0 to 3, more preferably a number from 1 to 2. EO and PO may be random addition or block addition, and block addition is more preferable.

[Component (C)]
Component (C) of the present invention is at least one water-soluble salt selected from a water-soluble silver salt, a water-soluble copper salt and a water-soluble zinc salt, and a water-soluble silver salt is preferred. When the component (C) is blended in the liquid detergent composition of the present invention, it is preferable that the composition is uniform in appearance and can maintain transparency, and the solubility in 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.

  The water-soluble silver salt is not particularly limited as long as it is soluble in water, preferably has the above-described solubility, and releases silver ions in water. Examples of the water-soluble silver salt include silver sulfate, silver nitrate, silver acetate, silver fluoride, silver perchlorate and the like, and silver sulfate is preferable from the viewpoint of handleability and odor. The water-soluble silver salt is not particularly limited, but silver ions are preferably 0.000001 mass% (0.01 mass ppm) or more in the treatment liquid (washing water) containing the liquid detergent composition. More preferably 0.00000% by mass or more, and particularly preferably 0.000003% by mass or more. Moreover, from a viewpoint of economical efficiency (cost), 0.5 mass% or less is preferable, 0.1 mass% or less is more preferable, and 0.05 mass% or less is further more preferable. It is preferable to use a water-soluble silver salt in such a blending amount as to achieve this use concentration.

  The water-soluble copper salt is not particularly limited as long as it is soluble in water, preferably has the above-described solubility, and releases copper ions in water. Examples of water-soluble copper salts include copper nitrate, copper sulfide, copper sulfate, copper chloride, copper acetate, copper cyanide, copper chloride ammonium, copper gluconate, copper tartrate, copper perchlorate, etc. Copper sulfate, copper chloride, and copper gluconate are preferable in terms of properties, cost, raw material supply property, etc., and copper sulfate is particularly preferable. The water-soluble copper salt is not particularly limited. However, when the copper ion is blended in the treatment liquid (washing water) containing the liquid detergent composition so as to be 0.000025 mass% (0.25 mass ppm) or more. Preferably, it is more preferably 0.000076% by mass or more, and particularly preferably 0.00015% by mass or more. Moreover, from a viewpoint of economical efficiency (cost), 0.5 mass% or less is preferable, 0.1 mass% or less is more preferable, and 0.05 mass% or less is further more preferable. It is preferable to use a water-soluble copper salt in such a blending amount that the concentration is used.

  The water-soluble zinc salt is not particularly limited as long as it is soluble in water, preferably has the above-described solubility, and releases zinc ions in water. Examples of water-soluble zinc salts include zinc nitrate, zinc sulfide, zinc sulfate, zinc chloride, zinc acetate, zinc cyanide, zinc chloride ammonium, zinc gluconate, zinc tartrate, zinc perchlorate, etc. Zinc sulfate, zinc chloride, and zinc gluconate are preferable in terms of properties, cost, raw material supply property, etc., and zinc sulfate is particularly preferable. The water-soluble zinc salt is not particularly limited, but when blended so that the zinc ion is 0.000046 mass% (0.46 mass ppm) or more in the treatment liquid (washing water) containing the liquid detergent composition. Preferably, it is 0.00014% by mass or more, more preferably 0.00023% by mass or more. Moreover, from a viewpoint of economical efficiency (cost), 0.5 mass% or less is preferable, 0.1 mass% or less is more preferable, and 0.05 mass% or less is further more preferable. It is preferable to use the water-soluble zinc salt in such a blending amount as to achieve this use concentration.

[Component (D)]
The component (D) of the present invention is water.

[(E) component]
The liquid detergent composition of the present invention further preferably contains hydrogen peroxide as the component (E) from the viewpoint of improving the detergency.

[(F) component]
The liquid detergent composition of the present invention preferably further contains an organic acid other than the component (C) and / or a salt thereof as the component (F). Examples of the component (F) include citric acid, malic acid, maleic acid, succinic acid, lactic acid, benzoic acid, salicylic acid, ethyl benzoic acid, dihydroxybenzoic acid, hydroxybenzoic acid, salicylic acid, hydroxybenzenesulfonic acid, and 1-hydroxy. Ethane-1,1-diphosphonic acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, hydroxyethane-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy- 1,2-diphosphonic acid, hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid), hexamethylenediaminetetra (methylenephosphonic acid), diethylenetriamine Penta (methylenephosphonic acid And include those salts. Examples of the salt include alkali metal salts such as sodium salt and potassium salt, and alkanolamine salts such as monoethanolamine salt and diethanolamine salt. Among these, a compound selected from citric acid, benzoic acid, and salts thereof is particularly preferable from the viewpoint of the pH stabilizing effect of the liquid detergent composition and the storage stability of the composition. (F) A component can be used 1 type or in mixture of 2 or more types. In addition, although the compound applicable to (F) component can also be used as a pH adjuster, those amounts are included in (F) component.

[(G) component]
The liquid detergent composition of the present invention preferably further contains an anionic surfactant as the component (G). Examples of the component (G) include alkylbenzene sulfonic acid and / or its salt (LAS), alkyl sulfate and / or its salt (AS), polyoxyethylene alkyl ether sulfate and / or its salt (AES), α- Olefin sulfonic acid and / or salt thereof (AOS), alkane sulfonic acid and / or salt thereof, α-sulfo fatty acid ester and / or salt thereof (α-SFE), polyoxyethylene alkyl ether carboxylic acid and / or salt thereof, Examples include higher fatty acids and / or salts (soaps) thereof.

  Among the above, alkylbenzenesulfonic acid and / or salt thereof, polyoxyethylene alkyl ether sulfate and / or salt thereof, alkanesulfonic acid and / or salt thereof are preferable, and linear alkylbenzenesulfonic acid and / or salt thereof is more preferable. preferable.

  Specifically, alkylbenzenesulfonic acid and / or a salt thereof having an alkyl group having 8 to 16, preferably 10 to 14 carbon atoms, an alkyl sulfate ester having an alkyl group having 10 to 20 carbon atoms, preferably 12 to 18 carbon atoms, and / Or a salt thereof, a polyoxyethylene alkyl ether sulfate having an alkyl group having 10 to 20 carbon atoms, preferably 12 to 18 and having an average addition mole number of ethylene oxide of 1 to 10, preferably 2 to 8 and / or A salt thereof, an α-olefin sulfonic acid having an alkyl group having 10 to 20 carbon atoms and / or a salt thereof, an alkane sulfonic acid having an alkyl group having 10 to 20 carbon atoms, preferably 12 to 14 carbon atoms and / or a salt thereof, preferably Is a secondary alkanesulfonic acid and / or a salt thereof, an α-sulfo fatty acid meso having an alkyl group having 10 to 20 carbon atoms. Cyl ester and / or salt thereof, having an alkyl group having 10 to 20 carbon atoms, polyoxyethylene alkyl ether carboxylic acid having an average addition mole number of ethylene oxide of 1 to 10 and / or salt thereof, higher grade having 12 to 14 carbon atoms A fatty acid and / or its salt (soap) etc. are mentioned preferably.

  Examples of the salt include alkali metal salts such as sodium salt and potassium salt, and alkanolamine salts such as monoethanolamine salt and diethanolamine salt.

<Liquid cleaning composition>
The liquid cleaning composition of this invention contains (A) component, (B) component, (C) component, and (D) component.

  From the viewpoint of dilution solubility in cold water during use, cleaning performance, and product compactification, the content of the component (A) in the liquid detergent composition of the present invention is 30 to 70% by mass, and 35 to 35%. 65 mass% is preferable and 40-60 mass% is still more preferable.

  From the viewpoint of dilution solubility in cold water during use and cleaning performance, the content of the component (B) in the liquid detergent composition of the present invention is preferably 6 to 40% by mass, more preferably 10 to 30% by mass. 12-25% by mass is particularly preferable.

  From the viewpoint of dilution solubility in cold water at the time of use, the mass ratio (component (A) / component (B)) of the component (A) and the component (B) is 100/60 to 100/5, 50-100 / 10 are preferable, 100 / 45-100 / 20 are more preferable, and 100 / 40-100 / 30 are still more preferable.

  From the viewpoint of preventing off-flavors and malodors originating from the bacteria generated in the drying step after washing, the liquid detergent composition of the present invention contains the component (C). From the viewpoint of stability and effect, the content of the component (C) in the liquid detergent composition of the present invention is preferably 0.03 to 10% by mass, more preferably 0.05 to 5% by mass, and 0.08. -3 mass% is still more preferable.

  The liquid cleaning composition of this invention contains (D) component. The content of the component (D) in the liquid detergent composition of the present invention is 10 to 50 in the composition from the viewpoint of the stability of the liquid detergent composition, dilution solubility in cold water during use, and washing performance. % By mass is preferable, 15 to 45% by mass is more preferable, and 20 to 40% by mass is particularly preferable.

  By making the content of components (A) to (D) and the mass ratio of component (A) / component (B) in such a range, the composition is excellent in dilution solubility in cold water during use, and sebum. Even in a garment to which severe dirt such as dirt adheres, sebum or the like hardly remains after washing, and it is possible to prevent generation of off-flavors and bad odors originating from bacteria in the drying process after washing. Also, a liquid detergent composition having good stability in this range can be obtained.

  Since the liquid detergent composition of the present invention containing the component (A), the component (B), the component (C) and the component (D) under specific conditions is excellent in dilution solubility in cold water during use, (E Even if the component ()) is contained, local deterioration (fading or damage) of the object to be cleaned by the component (E) can be prevented. As a result, it has become possible to apply to areas that require local cleaning power, such as collars, cuffs, and stains, without worrying about local deterioration. In addition, sebum and other garments on which clothes such as sebum stains are attached are likely to retain sebum even after washing, and there are cases in which a foul odor or bad odor originated from bacteria is generated in the drying process after washing. As a result, the odor generated from the laundry in the drying process after washing can be further deodorized. From the viewpoints of cleaning performance, stability, and deodorization, the liquid detergent composition of the present invention preferably contains the component (E), and the content of the component (E) in the liquid detergent composition of the present invention is: 0.1-10 mass% is preferable, 0.5-6 mass% is still more preferable, 0.8-4 mass% is especially preferable.

  From the viewpoint of the stability of the liquid detergent composition, the dilution solubility in cold water at the time of use, and the washing performance, the liquid detergent composition of the present invention preferably contains the component (F). The content of the component (F) in the agent composition is preferably 0.05 to 5% by mass, more preferably 0.1 to 3% by mass, and particularly preferably 0.2 to 1% by mass. The component (F) is an acid form or a salt thereof, but the mass varies depending on the molecular weight of the salt. Therefore, in the present invention, even if it is a salt, the mass when assuming the acid form is the mass of the component (F). And

  From the viewpoint of the stability of the liquid detergent composition, dilution solubility in cold water at the time of use, and washing performance, the liquid detergent composition of the present invention preferably contains the component (G). 1-15 mass% is preferable, as for content of (G) component in an agent composition, 1.5-12 mass% is still more preferable, and 2-8 mass% is especially preferable. Since the mass of the component (G) varies depending on the molecular weight of the salt, the mass of the component (G) when the acid type, that is, the counter ion is assumed to be a hydrogen atom ion, is not a salt in the present invention.

  From the viewpoint of the stability of the liquid detergent composition, dilution solubility in cold water during use, and cleaning performance, the mass ratio of the component (A) to the component (G) (component (A) / component (G)) is 98. / 2 to 70/30 is preferable, 97/3 to 80/20 is more preferable, 96/4 to 85/15 is still more preferable, and 95/5 to 90/10 is particularly preferable.

  From the viewpoints of stability of the liquid detergent composition, dilution solubility in cold water at the time of use, and washing performance, in the surfactant used in the liquid detergent composition of the present invention, the component (A) is 60% by mass or more. Preferably, 70 mass% or more is more preferable, and 80 mass% or more is still more preferable. The upper limit is 100% by mass.

  In the liquid detergent composition of the present invention, in addition to the above components, various optional components can be appropriately blended as necessary within a range not impairing the effects of the present invention.

  For example, other surfactants (cationic surfactants, amphoteric surfactants, other nonionic surfactants), viscosity reducing agents (lower alcohols such as ethanol and isopropanol; ethylene glycol, propylene glycol, etc.) Glycols), alkali agents (monoethanolamine, diethanolamine, alkanolamines such as triethanolamine), metal ion scavengers (malonic acid, succinic acid, malic acid, diglycolic acid, tartaric acid, citric acid, or their Salt, etc.), texture improvers such as silicone, preservatives, hydrotropes, fluorescent agents, dye transfer inhibitors, pearl agents, antioxidants (dibutylhydroxytoluene, distyrenated cresol, sodium sulfite, sodium bisulfite, etc.), Additives such as enzymes, flavoring agents or emulsifying agents It is below.

  From the viewpoint of the stability of the liquid detergent composition, dilution solubility in cold water during use, and washing performance, the pH of the liquid detergent composition of the present invention measured at 25 ° C. described in JIS K3362: 1998 is 5-9. Is preferable, and 6 to 8 is more preferable. When using the component (E), the pH at 25 ° C. is preferably 5 to 7, more preferably 6 to 6.5, from the viewpoint of the stability of the component (E).

  In the liquid detergent composition of the present invention, the pH adjuster includes inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid, organic acids such as polyvalent carboxylic acids and hydroxycarboxylic acids, sodium hydroxide, potassium hydroxide, Examples thereof include alkanolamine and ammonia, and sulfuric acid, sodium hydroxide, potassium hydroxide and alkanolamine are preferable from the viewpoint of the temporal stability of the liquid detergent composition.

  The method for using the liquid detergent composition of the present invention is a normal use method, that is, a method in which the liquid detergent composition is poured into water together with the laundry during washing, and the liquid detergent composition is applied to mud and sebum dirt. And a method in which a liquid detergent composition is previously dissolved in water and clothes are immersed. Also preferred is a method in which the liquid detergent composition is applied to the laundry and then allowed to stand as appropriate, followed by normal washing using a normal laundry solution. The liquid detergent composition of the present invention is suitable for textile products such as clothing.

[Model evaluation of solubility]
The liquid detergent composition and ion-exchanged water are [(mass of liquid detergent composition) / (mass of liquid detergent composition + mass of ion-exchanged water) × 100 = 5 to 95% by mass. A total of 19 samples mixed in increments of 5% by mass are prepared, and after standing for 1 day in a thermostatic chamber at 5 ° C., the viscosity of this sample at 5 ° C. is measured under the following conditions and judged according to the following criteria. Is a solubility model test in water at 5 ° C.
Measuring instrument Tokyo Keiki Co., Ltd. digital B type viscometer (model number; DV MB)
Measurement conditions 60 r / min 60 seconds ○: The viscosity of all the samples is less than 1500 mPa · s. This means that the liquid is not thickened due to liquid crystal formation or crystal formation at the time of dilution with cold water, and can be judged to be excellent in solubility.
X: Some samples have a viscosity of 1500 mPa · s or more. This means that thickening may occur due to liquid crystal formation or crystal formation upon dilution with cold water, and it is determined that the solubility is poor.

[Evaluation of cleaning power]
In accordance with “Method for Detergency Evaluation of Synthetic Detergents for Clothing” described in JIS K 3362, the cleaning powers of the liquid detergent compositions shown in Tables 1 and 2 and the index detergents for determining detergency are compared. The use concentration of the liquid detergent composition is 15 g / L. In the analysis and evaluation of the results, if the total score is less than 0, it is judged to be inferior to the standard detergent (x), 0 to less than 1 is judged to be equivalent to the standard detergent (O), and 1 or more is greater than the standard detergent ( ◎).

[Evaluation of deodorizing effect]
(Preparation of pre-treated cloth)
A two-tank washing machine (Toshiba Galaxy 3.6VH-360S1) is prepared, and 30 L of tap water at 5 ° C. is put into the washing tub, and underwear of cotton knitted fabric is put into this so that the total amount becomes 2.0 kg. 40 mL of JAFET (Japanese Association for the Function Evaluation of Textiles) standard detergent (neutral liquid) is added to this, 5 minutes of washing, 2 minutes of rinsing twice, 1 minute of dehydration, 1 minute after dehydration, and then air-dried indoors and pretreated. Use cloth.

(Wearing / washing treatment)
Laundry-treated cotton knitted underwear is allowed to be worn by adult men for 12 hours from 7 am to 7 pm. The cotton knitted underwear after wearing is washed and dried in the same manner as the preparation of the pretreatment cloth. This is repeated 30 times. Only the last washing uses the liquid detergent composition described in Tables 1 and 2 at a working concentration of 15 g / L. Further, the drying is performed overnight in a constant temperature and humidity room at 25 ° C. and a humidity of 90% or more.

(Deodorization evaluation)
The “unpleasant odor” of cotton knitted underwear is evaluated by the sensuality according to the following six-level evaluation criteria. The evaluation is performed by obtaining an average value of 10 professional panelists.
(Evaluation criteria)
0 points: odorless 1 point: odor that can be finally detected 2 points: odor that can be detected 3 points: odor that can be easily detected 4 points: strong odor 5 points: intense odor Based on the results, the deodorizing effect is evaluated based on the following criteria. If the average score of evaluation is less than 3 points, it is determined to be a general commercial detergent level, and if it is less than 2 points, it is determined that the deodorizing effect is good.
◎: Less than 1 point ○: 1 point or more, less than 2 points △: 2 points or more, less than 3 points ×: 3 points or more

The components in the table are as follows. In the table, “adjustment amount” is an amount for adjusting the pH to the value in the table. Table 3 shows the formulation examples of the liquid detergent composition belonging to the present invention.
A-1: R ¹ in the general formula (I) is a linear primary alkyl group having 11 carbon atoms, -X- is -COO-, n is 15, m is 0, and R ² is a methyl group. Surfactant A-2: R ¹ in the general formula (I) is a linear primary alkyl group having 11 carbon atoms, -X- is -COO-, n is 10, m is 0, R ² is methyl Nonionic surfactant of group: A-3: R ¹ in the general formula (I) is a linear primary alkyl group having 11 carbon atoms, -X- is -COO-, n is 20, m is 0, nonionic surfactant R ² is a methyl group · a-4: a linear primary alkyl groups R ¹ in the general formula (I) is 12 carbon atoms, -X- is -O-, n is 15, m is 0, R ² is a hydrogen atom nonionic surfactant A-5: R ¹ in the general formula (I) is a straight-chain primary alkyl group having 12 carbon atoms, -X- is -O-, n is 10, m 0, a non-ionic R ² is a hydrogen atom Surface active agents · A-6: R ¹ in the general formula (I) is a linear primary alkyl group of 12 carbon atoms, -X- is -O-, n is 20, m is 0, R ² is a hydrogen atom Nonionic surfactant A-7: R ¹ in the general formula (I) is a linear primary alkyl group having 11 carbon atoms, -X- is -COO-, n is 15, m is 2, R ² is a methyl group, and the sequence of EO and PO is R ¹ —COO— (PO) ₂ — (EO) ₁₅ —R ² , a nonionic surfactant [numbers following (EO) and (PO) Is the average number of moles added. ]
A-8: R ¹ in the general formula (I) is a linear primary alkyl group having 12 carbon atoms, -X- is -O-, n is 20, m is 2, R ² is a hydrogen atom, Nonionic surfactants whose EO and PO sequences are R ¹ —O— (EO) ₁₀ — (PO) ₂ — (EO) ₁₀ —H [numbers following (EO), (PO) are average additions] The number of moles. ]

· B-1: R ³ is a methyl group in the general formula (II), n1 is 10, m1 is nonionic 0 Compound · B-2: R ³ is a methyl group in the general formula (II), n1 is 10, m1 is 2, and the sequence of EO and PO is R ³ —O— (EO) ₁₀ —PO ₂ —H, the number after (EO), (PO) is the average added mole Is a number. ]
· ^B-3: R 3 is a methyl group in the general formula (II), n1 is 20, a non-ionic compound of m1 is 0 · B-4: R ³ is an ethyl group in the general formula (II), n1 is 10, m1 nonionic compound · B-5 0: general formula (II) R ³ is a methyl group in, n1 is 20, m1 is 2, the sequence of EO and PO is R ³ -O- ( EO) ₁₀ -PO _2- (EO) ₁₀ -H is a nonionic compound [(EO), the next number of (PO) is the average number of moles added. ]

LAS: alkyl (carbon number 12, 14) benzenesulfonic acid nonion (1): lauric acid diethanolamide (Aminone L-02, manufactured by Kao Corporation)
Nonionic (2): polyoxyethylene alkyl ether (ethylene oxide average addition mole number 3, carbon number 12, 14 of linear primary alkyl group)

Claims (3)

(A) 30-70 mass% of component, (B) component, (C) component, and (D) component are contained, (A) component and (B) component mass ratio [(A) component / (B) Component] is 100/60 to 100/5.
Component (A): Nonionic surfactant represented by the following general formula (I) R ¹ —X — [(EO) _n / (PO) _m ] —R ² (I)
(Wherein R ¹ is a hydrocarbon group, —X— is —O— or —COO—, R ¹ —X— is a total of 8 to 22 carbon atoms, EO is an ethyleneoxy group, PO is Represents a propyleneoxy group, n and m represent the average number of added moles, n is a number of 5 to 25, m is a number of 0 to 5. R ² is a hydrogen atom or a carbon atom having 1 to 3 carbon atoms. (It is a hydrogen group. “/” Indicates that EO and PO may be bonded to either random or block.)
Component (B): a nonionic compound represented by the following general formula (II) R ³ -O - _{[(EO) n1 / (PO)} m1 ] -H (II)
(In the formula, R ³ is a hydrocarbon group having 1 to ³ carbon atoms. EO represents an ethyleneoxy group, PO represents a propyleneoxy group, n1 and m1 represent an average addition mole number, and n1 is 5 to 25. And m1 is a number from 0 to 5. “/” indicates that EO and PO may be combined with either random or block.)
Component (C): One or more water-soluble salt selected from water-soluble silver salt, water-soluble copper salt and water-soluble zinc salt (D) Component: water Furthermore, (E) component and (F) component are contained, The pH measured at 25 degreeC of JISK3362: 1998 is 5-7, The liquid detergent composition of Claim 1.
(E) Component: Hydrogen peroxide (F) Component: Organic acid other than component (C) and / or salt thereof Furthermore, (G) component is contained, The mass ratio [(A) component / (G) component] of (A) component and (G) component is 98/2-70/30. Liquid detergent composition.
(G) component: anionic surfactant