JPH08157870A - Liquid detergent composition - Google Patents

Abstract

PURPOSE: To obtain the subject composition for clothes, having high detergency and presenting uniform liquid properties, containing a specific betalne-based amphoteric surfactant, anionic surfactant and nonionic surfactant. CONSTITUTION: This liquid detergent composition <=50wt.% in water content, contains (A) a betaine-based amphoteric surfactant of the formula (R is a 10-16C alkyl or alkenyl) [e.g. 3-8wt.% of a betaine alkenyldimethylaminoacetate], (B) an anionic surfactant, and (C) a nonionic surfactant at the weight ratios A/B of (1:10) or higher and B/C of (3:1) to (1:10).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid detergent composition, and more particularly to a liquid detergent composition for clothes which has good detergency and shows uniform liquidity.

[0002]

2. Description of the Related Art In recent years, in the field of detergents for clothes, detergent containers have been downsized for the purpose of resource saving, low load on the environment (reduction of the amount of dust), or reduction of transportation costs.
Along with this, the concentration of detergent compositions has become an issue, and it has been desired to provide a detergent composition that exhibits high detergency even in a small amount.

On the other hand, Japanese Laid-Open Patent Publication No. 52-38507,
JP-A-52-38508, JP-A-1-27250
No. 3, JP-A-2-51598, JP-A No. 2-2
No. 12600 and JP-A-5-214365 describe amphoteric surfactants as a cleaning base for cleaning agents for tableware, hair, and skin. The amphoteric surfactants are used for cleaning tableware, hair, and skin. The target cleaning agent has a good foaming performance and is a very effective base as a cleaning base mild to the skin of hands. However, at present, amphoteric surfactants are rarely used in liquid detergents for clothing.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid detergent composition exhibiting good cleaning performance and exhibiting uniform liquid properties.

[0005]

The present inventors show good cleaning performance by mixing a specific amphoteric surfactant, anionic surfactant and nonionic surfactant in a specific ratio, and It was found that a liquid detergent composition having a uniform liquid property can be obtained, and the present invention has been completed.

That is, the liquid detergent composition of the present invention is
A liquid detergent composition comprising 50% by weight or less of water in the composition, comprising the following components (a), (b) and (c), wherein the component (a) is converted to the component (b). On the other hand, the weight ratio of (a) :( b) = 1: 10 or more, and
The weight ratio of the components (b) and (c) is (b) :( c).
= 3: 1 to 1:10. (A) A betaine-based amphoteric surfactant represented by the general formula (1) of Chemical formula 2.

[0007]

Embedded image (R: alkyl group or alkenyl group having 10 to 16 carbon atoms) (b) Anionic surfactant. (C) A nonionic surfactant.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The betaine-based amphoteric surfactant of the component (a) used in the liquid detergent composition of the present invention is an alkyl group having 10 to 16 carbon atoms represented by the following general formula (1). Alternatively, it is an alkyldimethyl or alkenyldimethylaminoacetic acid betaine having an alkenyl group, and the alkyl or alkenyl group may be linear or branched.

[0009]

Embedded image (R: alkyl group or alkenyl group having 10 to 16 carbon atoms)

The betaine amphoteric surfactant (a) is preferably added in the liquid detergent composition of the present invention in an amount of 1 to 10% by weight, more preferably 3 to 8% by weight.

The anionic surfactant as the component (b) of the present invention is not particularly limited and includes the followings. 1) Linear or branched alkylbenzene sulfonate having an alkyl group having 8 to 16 carbon atoms 2) Alkyl sulfuric acid or alkenyl sulfate having 10 to 20 carbon atoms

3) Olefin sulfonate having 10 to 20 carbon atoms 4) Alkane sulfonate having 10 to 20 carbon atoms 5) Having linear or branched alkyl or alkenyl group having 10 to 20 carbon atoms, An average of 0.5 to 8 mol of ethylene oxide, propylene oxide, butylene oxide, or ethylene oxide / propylene oxide = 0.1 / 9.9 to 9.9 / 0.1
Alkyl ether sulphate or alkenyl ether sulphate added in the ratio of

6) It has a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms and has an average of 0.5.
~ 8 mol of ethylene oxide or propylene oxide or butylene oxide or ethylene oxide / propylene oxide = 0.1 / 9.9 ~
Alkyl ether carboxylate added at a ratio of 9.9 / 0.1

7) Alkyl polyhydric alcohol ether sulfate such as alkyl glyceryl ether sulfonate having 10 to 20 carbon atoms 8) Higher fatty acid salt having 10 to 20 carbon atoms 9) Saturated or unsaturated having 8 to 20 carbon atoms α-sulfo fatty acid salt or its methyl, ethyl or propyl ester

Of these, the above 1) and 5) are preferable. As the salts of these anionic surfactants, sodium salts, potassium salts, ammonium salts, alkanolamine salts and the like are used.

The nonionic surfactant used in the component (c) of the present invention is not particularly limited and includes the following. 1) A polyoxyalkylene alkyl or alkenyl ether obtained by adding 6 to 18 mol of ethylene oxide (EO) and / or propylene oxide (PO) on average to a primary or secondary alcohol having 8 to 18 carbon atoms,

2) Ethylene oxide (EO) and / or propylene oxide (P
O) on average of 6 to 18 moles added to polyoxyalkylene alkyl or alkenyl fatty acid ester or lower alcohol ether thereof,

3) Polyoxyethylene alkyl phenyl ether having an alkyl group having an average carbon number of 6 to 12 and having an average of 6 to 20 mol of ethylene oxide added, 4) Ethylene oxide added to a condensate of propylene oxide and propylene glycol. Prepared (Pluronic type surfactant), 5) A product obtained by adding ethylene oxide to a condensate of propylene oxide and ethylenediamine (Tetronic type surfactant),

6) an ester of a fatty acid having an average of 10 to 20 carbon atoms and sucrose; 7) a fatty acid glycerin monoester having an average of 10 to 20 carbon atoms; 8) an alkyl having an alkyl group or an alkenyl group of 10 to 20 carbon atoms or Alkenylamine oxide,

9) Alkyl polyglycoside having 8 to 20 carbon atoms These alkyl groups or alkenyl groups may be linear or branched. Of these, the nonionic surfactants of 1) or 2) above are preferable.

In the liquid detergent composition of the present invention,
The weight ratio of the component (a) to the component (b) is (a) :( b).
= 1:10 or more, preferably (a):
(B) = 1: 8 to 1: 1, more preferably (a):
(B) = 1: 6 to 1: 2. When the weight ratio of the component (a) to the component (b) is less than 1/10, sufficient cleaning performance cannot be obtained, which is not preferable.

In the liquid detergent composition of the present invention,
The weight ratio of the components (b) and (c) is (b) :( c).
= 3: 1 to 1:10, preferably (b):
(C) = 2.5: 1 to 1: 5, more preferably (b):
(C) = 2.5 to 1: 3. The weight ratio of the component (b) to the component (c) is (b) :( c) = 3:
If it exceeds 1, it becomes difficult to obtain uniform liquidity, while if the ratio by weight of component (b) to component (c) is below the range of (b) :( c) = 1: 10, (a The synergistic effect with the component) is not sufficiently exhibited, and sufficient cleaning performance cannot be obtained, which is not preferable.

If necessary, the liquid detergent composition of the present invention may further contain the following components. 1) Alkanolamines such as monoethanolamine, diethanolamine and triethanolamine. 2) Hydrotrope agents such as short-chain alkylbenzene sulfonates, lower alcohols and polyhydric alcohols.

3) Preservatives such as sodium benzoate and isothiazolone type compounds. 4) Chelate builder agents such as citrate, ethylenediaminetetraacetate and nitrilotriacetic acid. 5) Enzymes such as protease, amylase, cellulase and lipase. 6) A foam control agent such as silicone. 7) Fluorescent agents, fragrances, antioxidants, etc.

[0025]

The liquid detergent composition of the present invention exhibits good detergency and uniform liquidity, and is used as a liquid detergent composition for clothing.

[0026]

EXAMPLES Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to the following examples. [Testing method for detergency] US. Testing's Terg
Using -O-Tometer as a cleaning device, 10 pieces of contaminated cloth, sebum cloth, and clean knitted cloth are put therein, and the bath ratio is adjusted to 30 times, and the cloth is washed at 120 rpm and 25 ° C for 10 minutes. As the cleaning liquid, 900 mL of a liquid cleaning agent dissolved at a concentration of 0.083% is used, and rinsing is performed with 900 mL of water for 3 minutes. The water used was 3 degrees DH. The detergency was calculated by the following equation 1.

[0027]

[Equation 1] K / S = (1-R / 100) ² / (2R / 100) R is reflectance (%)

[Method of Making Contaminated Cloth] Contaminated cloth commercially available from EMPA of Switzerland, No. 101 and No. Each 104 was cut into a piece of 5 cm × 5 cm, which was used as a test cloth. [Method of evaluating uniformity of liquid] After preparing a liquid detergent composition,
It is placed in a 100 ml glass bottle, tightly stoppered, and allowed to stand at 25 ° C. for 24 hours, and the appearance is visually evaluated according to the following criteria. ○: Uniform transparent solution ×: White turbidity or separation

Examples / Comparative Examples 1 to 19 Liquid detergent compositions having the compositions shown in Tables 1 to 3 were prepared and the detergency or the stability of the liquid was evaluated. Example 1
Comparative Examples 8 to 8 are compounding agents for neutral liquid detergent compositions, and Examples 9 to 19 are compounding examples for alkaline liquid detergents.

Details of the description in the table are as follows. Diadol 13 (EO) ₃ SO ₃ Na: Didol
Alkyl ether sulfate obtained by adding 3 moles of ethylene oxide to 13 on average Dobanol 23 (EO) ₁₅ (PO) ₃ H: Dob
Polyoxyethylene polyoxypropylene alkyl ether Diadol 13 obtained by adding 15 mol of ethylene oxide on average to anol 23 on average and then adding 3 mol of propylene oxide on average: a straight chain containing 13 carbon atoms as a main component.
Branched mixed alcohol (linear rate 60%) (Mitsubishi Chemical Corporation)
Dobanol 23: Synthetic higher alcohol containing 12 to 13 carbon atoms as a main component and containing α-methyl branch (80% linear ratio) (manufactured by Mitsubishi Chemical Corporation) LAS monoethanolamine: linear alkyl (C ₁₁ ~ C
₁₃ ) Benzenesulfonic acid monoethanolamine Enzyme: Alkaline protease Fluorescent agent: Chinopearl CBX (manufactured by Ciba Geigy): Whitetex SA (manufactured by Sumitomo Chemical Co., Ltd.) = 1: 1 mixture

[0031]

[Table 1]Table 1: Example Comparative example 1 2 3 4 5 6 7 8 Lauryl dimethylamino 5-6 5 -1.2 5 6 Betaine acetate Acetate alkyl dimethyl-6 ------ Abetaine aminoacetate Diadol 13 (EO)₃SO₃Na 18 18 30 10 20 20 3 3 Lauric acid (EO)_FifteenCH₃18 − 12 − 20 20 40 −Dobanol 23 (EO) ₁₅ (PO) ₃ H − 24 − 30 − − − 50 Other components Paratoluene sulfonic acid 6 3 3 − 6 6 6 6 Sodium ethanol 3 − − − 3 3 3 3 Propylene glycol − 4 6 6 − − − − Sodium citrate 2 − − − 2 2 2 2 Enzyme 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Perfume 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Fluorescent agent 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Water 47 44 42 48 48 46.8 40 29 (a) :( b) Weight ratio 1: 3.6 1: 3 1: 5 1: 2 − 1:17 1: 0.6 1: 0.5 (b) :( c) Weight ratio 1: 1 1: 1.3 1: 0.4 1: 3 1: 1 1: 1 1:13 1:17 EMPA 104 Detergency 35 36 35 37 21 23 23 25

[0032]

[Table 2]Table 2: Example 9 10 11 12 13 14 Lauryl dimethyl amino 5 6 5 − 5 5 Betaine acetate Acetate dimethyl dimethyl − − − 5 − − Betaine aminoacetate Diadol 13 (EO)₃SO₃Na 10 22 − − − − LAS Monoethanolamine − − 28 30 33 10 Diadol 13 (EO)₆(PO)₂H-22 25-20 40 Dobanol 23 (EO) ₇ (PO) ₁ H 30 − − 15 − − Other ingredients Diethanolamine 11 11 10 10 10 10 Paratoluenesulfonic acid − − 8.5 8.5 8.5 8.5 Monoethanolamine Propylene glycol 6 6 5 5 5 5 Citric acid Monoethanolamine − − − 7 − − Ethanol 3 3 − − − − Perfume 0.2 0.2 0.2 0.2 0.2 0.2 Enzyme 0.6 0.6 0.6 0.6 0.6 0.6 Water 34.2 29.2 17.7 18.7 17.7 20.7 (a) :( b) Weight ratio 1: 2 1: 3.7 1: 5.6 1: 6 1: 6.6 1: 2 (b) :( c) Weight ratio 1: 3 1: 1 1: 0.9 1: 0.5 1: 0.6 1: 4 EMPA 104 Detergency 54 55 55 56 54 56 Uniformity of liquid ○ ○ ○ ○ ○ ○

[0033]

[Table 3] Table 3: Comparative Examples 15 16 17 18 19 Lauryl dimethylamino-2 55 5 5 Betaine acetate Acetyl dimethyl dimethyl ----- Amino acid betaine Diadol 13 (EO) ₃ SO ₃ Na 22 22 -3- LAS Monoethanolamine − − 45 − 32 Diadol 13 (EO) ₆ (PO) ₂ H 22 22 10 40 10 Dobanol 23 (EO) ₇ (PO) ₁ H − − − − − Other components Diethanolamine 11 11 11 10 11 Paratoluenesulfonic acid − − 8.5 − 8.5 Monoethanolamine Propylene glycol 6 6 5 6 5 Citric acid Monoethanolamine − − − − 7 Ethanol 3 3 − 3 − Perfume 0.2 0.2 0.2 0.2 0.2 Enzyme 0.6 0.6 0.6 0.6 0.6 Water 35.2 33.2 14.7 32.2 20.7 (a) :( b) Weight ratio − 1:11 1: 9 1: 0.6 1: 6.4 (b) :( c) Weight ratio 1: 1 1: 1 1: 0.2 1:13 1: 0.3 EMPA 101 Detergency 45 47 54 47 54 Uniformity of liquid ○ ○ × ○ ×

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[Procedure amendment]

[Submission date] March 20, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

[0032]

[Table 2]Table 2: Example 9 10 11 12 13 14 Lauryl dimethyl amino 5 6 5 − 5 5 Betaine acetate Acetate dimethyl dimethyl − − − 5 − − Betaine aminoacetate Diadol 13 (EO)₃SO₃Na 10 22 − − − − LAS Monoethanolamine − − 28 30 33 10 Diadol 13 (EO)₆(PO)₂H-22 25-20 40 Dobanol 23 (EO) ₇ (PO) ₁ H 30 − − 15 − − Other ingredients Diethanolamine 11 11 10 10 10 10 Paratoluenesulfonic acid − − 8.5 8.5 8.5 8.5 Monoethanolamine Propylene glycol 6 6 5 5 5 5 Citric acid Monoethanolamine − − − 7 − − Ethanol 3 3 − − − − Perfume 0.2 0.2 0.2 0.2 0.2 0.2 Enzyme 0.6 0.6 0.6 0.6 0.6 0.6 Water 34.2 29.2 17.7 18.7 17.7 20.7 (a) :( b) Weight ratio 1: 2 1: 3.7 1: 5.6 1: 6 1: 6.6 1: 2 (b) :( c) Weight ratio 1: 3 1: 1 1: 0.9 1: 0.5 1: 0.6 1: 4 EMPA 101 Detergency 54 55 55 56 54 56 Uniformity of liquid ○ ○ ○ ○ ○ ○

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazuaki Fukano 1-3-7 Main Office, Sumida-ku, Tokyo Inside Lion Corporation

Claims (1)

[Claims] 1. A betaine-based amphoteric surfactant represented by the general formula (1) of (a) (R: alkyl group or alkenyl group having 10 to 16 carbon atoms) (b) anionic surfactant (c) nonionic surfactant, wherein (a) component is in a weight ratio with respect to (b) component. (A): (b) = 1:10 or more compounding amount, and
The weight ratio of the components (b) and (c) is (b) :( c).
= 3: 1 to 1:10, wherein the amount of water in the composition is 50% by weight or less.