JPH11148099A - Neutral liquid detergent composition - Google Patents

Abstract

(57) Abstract: (a) Polyglycerin fatty acid ester comprising an esterified product of polyglycerin having a degree of polymerization of 5 to 20 and a fatty acid having 8 to 18 carbon atoms, (b) an amphoteric surfactant, and (c) By containing one or more surfactants selected from anionic surfactants and nonionic surfactants, it is excellent in safety, and has a neutrality equivalent to that of general kitchen detergents with detergency, foaming and disinfecting properties. Provide a clear liquid detergent. SOLUTION: Decaglycerin caprate 10
% By weight, cocoamidopropyl betaine 3% by weight, sodium lauryl ether sulfate 5% by weight, polyoxyethylene lauryl ether (5 moles of EO added) 2% by weight, lauric acid diethanolamide 2% by weight, ethanol 3% by weight, propylene glycol 5% by weight and 70% by weight of water
A liquid detergent composition comprising:

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent liquid detergent composition excellent in safety, neutrality, detergency and foaming, and more particularly to a liquid detergent suitable for washing dishes and foods. Composition.

[0002]

2. Description of the Related Art Generally, when washing dishes and foods, the washing components are removed by sufficient rinsing. However, parents with infants with weak resistance sought a safer detergent in case. Therefore, it has been considered that the detergent composition is composed of food additives.

[0003] As such a detergent composition, a liquid detergent composition using only a sucrose ester (Japanese Patent Laid-Open No. SHO 51-51) is used.
JP-A-55306), a detergent composition containing a polyglycerin fatty acid ester and an organic builder such as malate (Japanese Patent Publication No. 3-37599), and a polyglycerin fatty acid ester and a sucrose fatty acid ester. Aqueous neutral detergent composition (JP-A-7-109484)
Have been reported. However, the cleaning power and foaming are all inferior to general kitchen detergents.

[0004] Recently, there has been a demand for the eradication of food poisoning such as O-157 bacterium. However, even in this case, it is extremely nervous in a home having infants with weak resistance to the use of general kitchen detergents. ing. Accordingly, there is a need for a neutral transparent liquid detergent composition that is excellent in safety, has the same detergency and foaming properties as general kitchen detergents, and has an excellent sterilization ability.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a neutral transparent liquid detergent which is excellent in safety and has the same detergency, foaming and sterilization properties as ordinary kitchen detergents. And

[0006]

In order to solve the above-mentioned problems, a neutral liquid detergent composition of the present invention comprises (a) a polymerization degree of 5
Polyglycerol fatty acid ester comprising an esterified product of a polyglycerol having a carbon number of -20 and a fatty acid having a carbon number of 8-18,
It is characterized by containing one or more surfactants selected from the group consisting of (b) amphoteric surfactants and (c) anionic surfactants and nonionic surfactants.

Further, in the above neutral liquid detergent composition of the present invention, it is preferable that the blending weight of each of the components (b) and (c) is equal to or less than the blending weight of the component (a).

Further, the neutral liquid detergent composition of the present invention comprises:
Further, it is preferable to contain (d) a fatty acid alkanolamide.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The component (a) used in the present invention is a polyglycerol fatty acid ester comprising an esterified product of polyglycerin having a degree of polymerization of 5 to 20 and a fatty acid having 8 to 18 carbon atoms. Examples of the polyglycerin having a polymerization degree of 5 to 20 include pentaglycerin, hexaglycerin, heptaglycerin, octaglycerin, nonaglycerin, decaglycerin, and a mixture thereof, and preferably a polyglycerin having 24 to 36 carbon atoms. On the other hand, carbon number 8
Examples of the fatty acid having 18 to 18 include capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, and preferably have 10 to 18 carbon atoms.
More preferably, it is capric acid. A typical polyglycerin fatty acid ester used in the present invention is decaglycerin caprate (an ester of decaglycerin and capric acid).

[0010] The polyglycerol fatty acid ester of the component (a) is preferably incorporated in the detergent composition of the present invention in an amount of 2 to 20% by weight, more preferably 2 to 10% by weight. These may be used alone or in combination of two or more.

The amphoteric surfactant (b) used in the present invention includes, for example, alkyl betaine type, alkyl amide betaine type, imidazoline type and alkylamino sulfone type represented by the following general formulas (1) to (8). , Alkylaminocarboxylic acid type, amide amino acid type and the like.

[0012]

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[0013]

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[0014]

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[0015]

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[0016]

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[0017]

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[0018]

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[0019]

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(In the above general formulas (1) to (8), R
¹ represents a straight-chain or branched-chain alkyl group or alkenyl group having 6 to 22 carbon atoms, and R ² and R ³ may be the same or different and may have 1 to 5 carbon atoms or 1 to carbon atoms.
5 represents a hydroxyalkyl group. X represents a hydrogen atom or a hydroxyl group, and Y represents a hydrogen atom or an alkali metal or an alkaline earth metal. Further, m represents an integer of 0 to 5, n represents an integer of 1 or more, and p and q are 0 ≦ p +
Indicates an integer satisfying q ≦ 4. Further, Z is -SO ₃ ^- or C
OO ^- show a)

Of these, betaine-type amphoteric surfactants are particularly preferred, and coconut fatty acid amidopropyl betaine and lauric acid amidopropyl betaine are particularly preferred.

The component (b) amphoteric surfactant is preferably incorporated in the detergent composition of the present invention in an amount of 0.1 to 20% by weight, more preferably 0.1 to 10% by weight. These may be used alone or in combination of two or more.

The component (c) used in the present invention is at least one surfactant selected from the group consisting of an anionic surfactant and a nonionic surfactant.

Examples of the anionic surfactant include a linear alkylbenzene sulfonate having an alkyl group having an average of 8 to 16 carbon atoms, an alpha olefin sulfonate having an average of 10 to 20 carbon atoms, and an alkyl or alkenyl group having an average carbon number of 10 to 20 carbon atoms. 4 to 10 dialkyl (alkenyl) sulfosuccinates, fatty acid lower alkyl ester sulfonate or fatty acid sulfonated disalt compound represented by the following general formula (I), alkyl sulfate having an average of 10 to 20 carbon atoms ,
Alkyl (alkenyl) ether sulfates having a linear or branched alkyl or alkenyl group having an average of 10 to 20 carbon atoms and having an average of 0.5 to 8 mol of ethylene oxide added thereto, and having a saturated average of 10 to 22 carbon atoms Or an unsaturated fatty acid salt. As a counter ion in these anionic surfactants, an alkali metal such as sodium or potassium, or an alkanolamine salt such as monoethanolamine or diethanolamine is used. Among these, sodium higher alkyl ether sulfate is preferable.

[0025]

Embedded image (Wherein, R represents an alkyl group or alkenyl group having 8 to 20 carbon atoms, Y represents an alkyl group having 1 to 3 carbon atoms or a counter ion, and Z represents a counter ion).

Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene polyoxypropylene alkyl or alkenyl ether, polyoxyalkylene glycol fatty acid ester, and alkylamine. And ethylene oxide adducts. Among them, a straight or branched chain having 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, and an average addition mole number of ethylene oxide of a primary or secondary alcohol of 3 to 20, preferably Is 3 ~
A polyoxyethylene alkyl ether of 15 is preferred.

The surfactant of the component (c) is preferably incorporated in the detergent composition of the present invention in an amount of 0.1 to 40% by weight.
Preferably it is 0.2 to 20% by weight. In addition, the surfactant of the component (C) may use one or more surfactants of the same type (only anionic surfactant or only nonionic surfactant) or a different surfactant (anionic surfactant and anionic surfactant). Nonionic surfactant) may be used alone or in each case. However, in some cases, 0.1 to 10% by weight of each of at least one of anionic surfactant and at least one of nonionic surfactant is used. Particularly preferred.

The compounding ratio of the components (a) to (c) is preferably such that the compounding weight of each of the components (b) and (c) is equal to or less than the compounding weight of the component (a). . Particularly, the compounding weight of the component (b) is in the range of 5 to 30% by weight based on the compounding weight of the component (a), and the compounding weight of the component (c) is an anionic surfactant or a nonionic surfactant.
Each is preferably in the range of 5 to 70% by weight, and (c)
It is particularly preferred that the compounding weight of the entire component is not less than 10% by weight of the component (a) and not more than the same amount. By using the above-mentioned specific types of components (a) to (c) at the above-mentioned specific ratios, all the effects of safety, detergency, foaming property, and sterilization power are particularly balanced. An excellent detergent composition can be obtained.

In the fatty acid alkanolamide of the component (d) used in the present invention, examples of the fatty acid include those having 8 to 18 carbon atoms such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid and oleic acid.
Among these, lauric acid is preferred. A representative fatty acid alkanolamide used in the present invention is lauric acid diethanolamide.

(D) The fatty acid alkanolamide is preferably incorporated in the detergent composition of the present invention in an amount of 0.1 to 20% by weight, and more preferably 0.1 to 10% by weight. These may be used alone or in combination of two or more.

The optional components used in the present invention include:
Solvents such as propylene glycol and ethyl alcohol. The amount of such a solvent is suitably 1 to 30% by weight, preferably 1 to 20% by weight in the detergent composition. Also, if necessary, enzymes, enzyme stabilizers,
Preservatives, antibacterial agents, pigments, fragrances and the like can be added.

The neutral liquid detergent composition of the present invention is prepared by adding water to the above components (a) to (d) and optional components. The concentration of these components is 5 to 80% by weight, particularly preferably 15 to 70% by weight. When the neutral liquid detergent composition of the present invention is used, the standard usage amount is preferably 1.2 ml per liter of water.

[0033]

The present invention will be described in more detail and specifically with reference to the following examples. Examples 1 to 15 and Comparative Examples 1 to 2 Liquid cleaning compositions having the compositions described in Tables 1 to 3 were prepared,
The performance was evaluated by the following method, and the results are shown in Table 4. Next, evaluation methods used in Examples and Comparative Examples will be described.

[Method for Evaluating Detergency] Salad oil (added with oil red) is evenly applied to a small plastic plate for baby. Soak the dishwashing sponge with water, apply a detergent, rub the sponge and lather. One dish with the sponge
Rub 0 times. The dishes are rinsed thoroughly with running water, and the finished condition of the dishes is evaluated by the degree of residual oil on the surface. The evaluation criteria were relatively evaluated according to the following criteria. 5: No oil left 4: Oil slightly left but not red 3: Oil slightly left, slightly red 2: Oil slightly left, overall red 1: Oil entirely Left and red

[Evaluation Method for Foaming] Salad oil is spread over the entire surface of a small plastic plate for baby and applied. Place a sponge soaked in water on a plate, apply a cleaning agent, rub the sponge and lather. Add 1 g of tap water to the plate, apply rubbing force with the sponge 10 times, scrub, and remove
Evaluate on a scale. The point where the bubbles are slightly reduced is the end point,
We evaluated how many dishes can be washed.

[Evaluation method of disinfecting property] A certain amount of bacteria (Bacillus subtilis) and 5 g of 60% by weight powdered milk slurry were put in a baby bottle, the liquid was adhered to the whole baby bottle, and cultured at 37 ° C overnight. 100 ml of a detergent diluent (0.12% by weight; diluted with tap water) was added thereto, and this was shaken up and down five times by hand to perform model washing. The solution was discarded and the model was rinsed with tap water in the same manner. To remove the rinsing liquid, a certain portion of the baby bottle was scraped off with a cotton swab, and the cotton swab was put into a bouillon solution, and dirt and the like were completely collected with a touch mixer. This solution was diluted appropriately, and the diluted solution was cultured at 30 ° C. for 48 hours, and the number of colonies was measured to confirm the number of remaining bacteria. Judgment was made from the residual rate according to the following criteria. In addition, 評 価 is preferable for evaluation in terms of commercial value. ：: less than 5% △: 5 to 20% ×: 20% or more

[0037]

Table 1 Component Table cleaning compositions (wt%) implementation Example Ingredient 1 2 3 4 5 6 7 8 decaglycerol capric acid ester 5 8 10 7 8 5 5 decaglycerol laurate 10 coconut fatty acid amide propyl Betaine 25 55 23 Laurylaminopropionic acid 55 52 Sodium lauryl ether sulfate 35 25 35 dodecylbenzene sulfonate 75 52 3 Polyoxyethylene lauryl 25 53 ether (5 moles of EO added) Polyoxyethylene Lauryl 35 55 53 ether (7 moles of EO added) Lauric acid diethanolamide 24 34 43 myristinic acid diethanolamide 33 35 ethanol 66 62 66 6 Propylene glycol 65 54 66 65 66 Water 74 64 68 66 66 68 66 77

[0038]

TABLE 2 Component Table cleaning compositions (wt%) implementation example Ingredient 9 10 11 12 13 14 15 decaglycerol capric acid esters 6 7 8 8 13 decaglycerol laurate 6 10 coconut fatty acid amide propyl betaine 1 5 3 2 3 0.5 Laurylaminopropionic acid 3 Sodium lauryl ether sulfate 5 3 5 8 Dodecylbenzene sulfonate 5 0.5 Polyoxyethylene lauryl 1 3 3 ether (EO addition mole number 5) Polyoxyethylene lauryl 3 3 8 ether (EO) Number of moles added 7) Lauric acid diethanolamide 2 Myristic acid diethanolamide 3 3 5 5 Ethanol 3 3 6 4 4 Propylene glycol 6 4 3 3 4 6 5 Water 72 72 74 75 69 70 76

[0039]

[Table 3]

[0040]

[Table 4]

As described above, the detergency is actually a model experiment using a plastic small dish for a baby, and the same applies to foaming. And as is clear from Table 4, the liquid detergent compositions of Examples 1 to 15 are superior in both detergency and foaming as compared with the liquid detergents of Comparative Examples 1 and 2. Furthermore, among Examples 1 to 15, Examples 2, 4, 5, 10, 12 to 15, in which the mixing ratio of the component (b) and the component (c) is equal to or less than the mixing ratio of the component (a). In particular, Example 2,
4, 5, and 10 have the same detergency and foaming as the other examples. Therefore, it is shown that by adjusting the type, the mixing ratio, and the type of each component in the present invention, compatibility between safety and detergency was achieved. Therefore, the neutral liquid detergent composition of the present invention has high safety (mainly containing a food additive cleaning component),
It is clear that it has excellent lathering and is suitable for washing dishes and foods.

[0042]

Industrial Applicability The neutral liquid detergent composition of the present invention is excellent in safety, and has the same detergency, foaming and sterilization properties as ordinary kitchen detergents.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 1:12 1:44 1:66)

Claims (3)

[Claims] 1. A polyglycerol fatty acid ester comprising (a) an esterified product of polyglycerin having a degree of polymerization of 5 to 20 and a fatty acid having 8 to 18 carbon atoms, (b) an amphoteric surfactant, and (c) an anionic surfactant. And a neutral liquid detergent composition containing one or more surfactants selected from the group consisting of nonionic surfactants. 2. The blending weight of each of the components (b) and (c) is equal to or less than the blending weight of the component (a).
9. The neutral liquid detergent composition according to item 1. 3. The neutral liquid detergent composition according to claim 1, further comprising (d) a fatty acid alkanolamide.