JP2005200642A - Liquid detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid detergent composition for the tableware having excellent detergency and usability, being easily diffused when mixed with water at a low temperature as well as its product. <P>SOLUTION: This liquid detergent composition comprises (a) 1-20 mass% of an anionic surfactant, (b) a semipolar surfactant and/or amphoteric surfactant, and (c) a 7-10C aromatic sulfonate, and does not substantially comprise a diol solvent, wherein the mass ratio of (a):(b) is 1:2-5:1, the viscosity at 25°C is 1-20 mPa s, and the difference between the viscosity at 10°C and the viscosity at 25°C is not more than 20 mPa s. The detergent product for dish washing is prepared by containing the composition in a container having a discharging opening of not more than 1.2 mm. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a liquid detergent composition, and more particularly to a liquid detergent composition suitable for dishwashing, which has high detergency and excellent usability at low temperatures.

Conventionally, dishwashing in a general household is mainly performed by the following two methods.
(1) A method of taking a stock solution of detergent in a sponge soaked in water, lathering it and bubbling it, and then scrubbing the article to be washed so that the detergent can be spread.
(2) A method in which water is applied to a tub or sink to dilute the cleaning agent and the dishes are soaked, and then the items to be washed are rubbed in them.
However, in the method (1), there is a problem in that the detergent solution in the sponge is diluted with water or the like and the cleaning power decreases by continuously washing the dishes. In the dilution step (2), there is a problem that the conventional detergent does not perform diffusion quickly, and the concentration distribution of the detergent is generated, so that it does not act efficiently.
In order to solve this problem, there is a cleaning composition that has been reduced in viscosity by a diol solvent, and it is assumed that it will be used in a spray, but by adding a diol solvent, the aroma is deteriorated and the stability is lowered. Is concerned. (For example, see Patent Document 1)

JP 11-116987 A

  It is an object of the present invention to provide a dishwashing liquid detergent composition and a product which are easily diffused when mixed with water at a low temperature without using a diol solvent, and have excellent detergency and usability. To do.

As a result of intensive studies to solve the above problems, the present inventors have combined anionic surfactant and semipolar surfactant and / or amphoteric surfactant and aromatic sulfonic acid to obtain a specific viscosity and By preparing a liquid detergent composition so as to have a viscosity behavior, it is easily diffused when mixed with water, and it is found that there is little thickening at low temperatures and the usability is not impaired, and the present invention is completed. It came to.
That is, the present invention contains the following (a) to (c) and substantially does not contain a diol solvent, and the mass ratio (a) :( c) is 1: 2 to 5: 1 at 25 ° C. The liquid detergent composition has a viscosity of 1 to 20 mPa · s, and the difference between the viscosity at 10 ° C. and the viscosity at 25 ° C. is 20 mPa · s or less.
(A) Anionic surfactant 1 to 20% by mass
(B) Semipolar surfactant and / or amphoteric surfactant (c) Aromatic sulfonate having 7 to 10 carbon atoms The present inventors also provide the above composition in a container having a discharge port diameter of 1.2 mm or less. A dishwashing detergent product containing

  According to the present invention, it is excellent in diffusibility to water at the time of dilution and has little viscosity increase at low temperatures, so that it has good detergency and usability at low temperatures.

Below, the liquid detergent composition of this invention is demonstrated in detail.
The anionic surfactant which is the component (a) used in the present invention is not particularly limited, but is alkyl or alkenyl sulfate, polyoxyethylene alkyl or alkenyl sulfate, alkyl benzene sulfonate, alkane sulfonate, alkyl or Alkenyl ether carboxylates, α-sulfo fatty acid derivatives, α-olefin sulfonates, α-sulfo fatty acid alkyl ester salts, sulfosuccinates, alkyl phosphate ester salts, natural fatty acid soaps, amide ether carboxylic acids, amino acid anion activators, etc. Can be used.
Preferred are alkyl or alkenyl sulfates, polyoxyethylene alkyl or alkenyl sulfates, alkylbenzene sulfonates having 11 or more carbon atoms, alkane sulfonates, and α-olefin sulfonates.

  Content of (a) component in a liquid detergent composition is 1-20 mass%, Preferably it is 3-15 mass%, More preferably, it is 5-15 mass%. If it is less than 1% by mass, sufficient detergency cannot be obtained, and if it exceeds 20% by mass, sufficient diffusibility cannot be obtained when mixed with water.

As the component (b), the following (b-1) and / or (b-2) are used.
(B-1) Semipolar surfactant Alkylamine oxide, alkylamidoamine oxide, alkylhydroxyamine oxide and the like can be used.
(B-2) Amphoteric surfactants Carboxybetaines, aminocarboxylates, alkylsulfobetaines, hydroxyalkylsulfobetaines, alkylimidazolinium betaines, alkylbetaines, alkylamidopropylbetaines and the like can be used.

  The component (b) is used alone or in combination, and the content thereof is preferably 0.1% by mass, more preferably 1% by mass, and the upper limit is preferably 10% by mass. Preferably it is 5 mass%. If it is less than 0.1% by mass, sufficient detergency cannot be obtained, and if it exceeds 10% by mass, sufficient diffusibility may not be obtained when mixed with water.

As the component (c), toluene sulfonate, xylene sulfonate, cumene sulfonate and the like can be used. Preferred is cumene sulfonate.

  In the present invention, the mass ratio (a) :( c) of the component (a) to the component (c) needs to be in the range of 1: 2 to 5: 1. When the mass ratio (a) :( c) exceeds 1: 2, sufficient detergency cannot be obtained, and when it exceeds 5, the viscosity difference between 10 ° C. and 25 ° C. increases.

In addition to the components (a), (b) and (c), the composition of the present invention preferably contains a nonionic surfactant in order to improve detergency.
Nonionic surfactants include alkyl (or alkenyl) alkoxylates such as polyoxyethylene alkyl (or alkenyl) ether, polyoxyethylene polyoxypropylene alkyl (or alkenyl) ether, fatty acid diethanolamide having 12 to 14 carbon atoms, Polyoxyalkylene higher fatty acid amides such as higher fatty acid alkanolamides such as lauric acid diethanolamide, polyoxyethylene (EO average 1 to 4 mol) lauric acid amide, polyoxypropylene (PO average 1 to 4 mol) lauric acid amide, etc. preferable.
The content of the nonionic surfactant is preferably 10% by mass or less, more preferably 1 to 5% by mass from the viewpoint of suppressing an increase in the viscosity of the composition.

The detergent composition used in the present invention is required to have a viscosity of 1 to 20 mPa · s at 25 ° C. and a viscosity difference of 10 m ° C. and 25 ° C. of 20 mPa · s or less. If the viscosity exceeds 20 mPa · s, sufficient diffusibility cannot be obtained when mixed with water, and if the viscosity difference exceeds 20 mPa · s, the difference in usability between summer and winter becomes large, making it difficult to use it well. become.
The viscosity is a value measured by the following method.

[Measurement method of viscosity]
Using a BL type viscometer (PVL-B2 manufactured by TOKIMEC), the cleaning composition adjusted to 10 ° C. or 25 ° C. 1, the value after 1 minute at a rotational speed of 60 rpm (viscosity: mPa · s) was measured.

  In the present invention, the components (a) to (c) are in the above range, and the viscosity and viscosity behavior as described above are exhibited by adjusting the content and pH of the components (b) and (c). A liquid detergent composition can be easily prepared.

  In the present invention, the liquid detergent composition is contained in a container having a discharge port diameter of 1.2 mm or less. A container with an extraction cap having one or a plurality of discharge ports having a discharge port diameter of 0.4 to 0.8 mm or a trigger type spray container having a discharge port diameter of 0.2 to 1.2 mm is preferable.

  Various additives can be used as long as the effects of the present invention are not impaired. For example, polyoxyalkylene alkyl ether, fatty acid alkanolamide, polyoxyethylene sorbitan ester, sorbitan ester, sorbitol ester, sucrose fatty acid ester, methyl glucoside ester, methyl mannoside ester, ethyl glucoside ester, N-methyl glucamide, cyclic N -Nonionic surfactants such as methyl glucamide, alkyl glucoside, alkyl polyglucoside, alkyl glyceryl ether, sorbitan fatty acid ester, polyoxyethylene acyl ester, fatty acid glycoside ester, fatty acid methyl glycoside ester, alkyl methyl glucamide, alkylamine hydrochloride , Polyhydric alcohols other than cationic surfactants such as quaternary ammonium salts, diols such as glycerin and sorbitol, poly Hydrotropes such as tylene glycol and aromatic carboxylic acid, sequestering agents such as citric acid (salt), EDTA, glycolic acid (salt), inorganic salts such as magnesium salt and calcium salt, benzoic acid, zinc sulfate, etc. Antibacterial agents, pigments, fragrances, opacifiers, natural polysaccharides, thickeners such as clay minerals, antioxidants such as BHT and ascorbic acid can be used.

  A list of perfume ingredients used as perfumes can be found in various publications such as “Perfume and Flavor Chemicals”, Vol. Iand II, Steffen Arctander, Allured Pub. Co. (1994) and "Synthetic fragrance chemistry and commercial knowledge", Motoichi Into, Chemical Industry Daily (1996) and "Perfume and Flavor Materials of Natural Origin", Stephen Arctander, Allred Pub. Co. (1994) and "Encyclopedia of Scents", edited by Japan Fragrance Association, Asakura Shoten (1989) and "Performer Material Performance V.3.3", Boelens Aroma Chemical Information Service (1996) and "Flower Oils". , Danute Lajaujis Anonis, Allured Pub. Co. (1993), etc., each of which is incorporated herein by reference.

EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated more concretely, this invention is not restrict | limited to the Example shown below.
[Examples 1-6, Comparative Examples 1-5]
A liquid detergent composition having the composition shown in Table 1 was prepared, and the cleaning power and diffusibility were evaluated as follows. The results are shown in Table 1. In addition, the viscosity of the composition and the diluted solution was measured by the following method. From Table 1, it can be seen that in the present invention, it has excellent detergency and easily diffuses when mixed with water.

[Measurement method of viscosity]
Using a BL type viscometer (PVL-B2 manufactured by TOKIMEC), the cleaning composition adjusted to 10 ° C. or 25 ° C. 1, the value after 1 minute at a rotational speed of 60 rpm (viscosity: mPa · s) was measured.

[Evaluation of cleaning power]
A detergency test was conducted using a model soil dish in which salad oil was uniformly applied to a white ceramic dish. Detergency is determined by placing the model dish horizontally, immersing the entire dish with a detergent composition diluted to 1% strength by weight with distilled water, and rinsing with running water for 10 seconds after 5 minutes. The condition was visually evaluated according to the following evaluation criteria.
Evaluation criteria ○: Dirt is completely removed △: Dirt remains a little x: Dirt is hardly or not removed

[Diffusion evaluation]
Take 300 ml of distilled water at 10 ° C in a 500 ml beaker, spray or drop a detergent composition (10 ° C) colored with a pigment or the like from the following container at a distance of 10 cm from the surface of the water, and the degree of diffusion after 1 minute of the detergent composition Was visually evaluated according to the following evaluation criteria.
Container A: Small bathrobe (Lion Corporation, released on September 20, 2003), discharge port diameter 0.65mm
B: Trigger type spray container conforming to FIG. 1, discharge port diameter 0.8 mm
C: Charmy Mild (Lion Corporation, released on October 6, 2001), discharge port diameter 1.9mm
Evaluation criteria ◎: Diffuse uniformly ○: Diffuse almost uniformly ×: Detergent is localized in water

Raw materials used:
AES (3): C12-13 alkylethoxy (EO3 mol) sulfate sodium salt
NRES (2): C12-13 alkyl ethoxy (EO2 mol) sulfate sodium salt with a straight chain ratio of 80% by mass, the proportion of molecular species having 1 to 3 mol of EO added is 65% by mass
AS: C12-13 alkyl sulfate sodium salt
SAS: C14-16 secondary alkylsulfonic acid sodium salt
AOS: C14α sodium olefin sulfonate
LAS: C10-14 linear alkylbenzene sulfonate sodium
AX: C12 alkyldimethylamine oxide
APAX: C12 alkylamidopropyldimethylamine oxide
LPB: C12 alkylamidopropyl betaine
pTS-H: p-Toluenesulfonic acid
mXS-H: m-xylene sulfonic acid
CS-H: cumene sulfonic acid benzoic acid Na: sodium benzoate sorbitol: sorbitol
BRE (15): Polyoxyethylene (EO15 mol) alkyl (C12) ether
LDE: Lauric acid diethanolamide
LME (2): Polyoxyethylene (EO2 mol) Lauric acid monoethanolamide
ZnSO4: Zinc sulfate
MgSO4: Magnesium sulfate
EtOH: Ethanol citrate Na: Trisodium citrate Sulfate: Sulfuric acid
NaOH: Sodium hydroxide perfume: perfume composition A described in JP-A-2002-327194, Tables 4 to 11
Dye: Yellow No. 203 Water: Tap water of Hirai, Edogawa-ku, Tokyo Note that the number of EO added moles is an average value.

[PH adjustment method]
Adjust to a predetermined pH with H ₂ SO ₄ or NaOH.

It is explanatory drawing which shows an example of the trigger type spray discharge container used for this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Discharge container 2 Container 2a Mouth part 3 Dispenser 4 Cap 5 Nozzle 5a Passage 6 Trigger 7 Piston 8 Cylinder 8a Cylinder chamber 9 Valve part 9a Seat surface 10 Stainless ball 11 Dip tube 12 Passage hole 13 Upper valve 13a Valve body 20 Injection hole 21 Droplet / foaming cylinder

Claims (3)

The following (a) to (c) are contained, and the diol solvent is substantially not contained, and the mass ratio (a) :( c) is 1: 2 to 5: 1, and the viscosity at 25 ° C. is 1 to 20 mPa. A liquid detergent composition, characterized in that the difference between the viscosity at 10 ° C. and the viscosity at 25 ° C. is 20 mPa · s or less.
(A) Anionic surfactant 1 to 20% by mass
(B) Semipolar surfactant and / or amphoteric surfactant (c) C7-10 aromatic sulfonate   The liquid detergent composition according to claim 1, wherein the aromatic sulfonate is cumene sulfonate and is used for dishwashing. A dishwashing detergent product comprising the composition according to claim 1 or 2 contained in a container having a discharge port diameter of 1.2 mm or less.

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