JPH08157866A - Liquid detergent composition - Google Patents

Abstract

PURPOSE: To obtain the subject composition, exhibiting high detergency without the need of any chelate builder, thus suitable for clothes. CONSTITUTION: This liquid detergent composition for clothes comprises (a) a polyoxyethylene polyoxypropylene alkyl ether-type nonionic surfactant of the formula R<1> -O(EO)k(PO)lH (R<1> is a 10-16C alkyl or alkenyl group; EO is ethylene oxide group; PO is propylene oxide group; (k) is an average ethylene oxide added number of moles; L is an average propylene oxide added number of moles, where (k) is 5-6; L is 1-2) and (b) another polyoxyethylene polyoxypropylene alkyl ether-type nonionic surfactant of the above formula (where, (k) is 12-15; L is 1-3) at the weight ratio (a)/(b) of (95:50) to (50:50).

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a liquid detergent composition for clothes having excellent detergency.

[0002]

2. Description of the Related Art Conventional liquid detergents for clothes have used an anionic surfactant as a main ingredient and have been improved in washing performance by being combined with a chelate builder component. However, chelating builder agents are, for example, phosphates and EDTA.
As described above, problems such as the effect on the environment and the problem that zeolite requires advanced technology for dispersion stabilization are occurring. On the other hand, citrate described in JP-A-48-73408 and JP-A-48-73409
Although the diglycolate described in the publication has little effect on the environment, the present situation is that the chelating ability is insufficient and sufficient cleaning performance cannot be obtained.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid detergent composition which can exhibit high detergency without the need for a chelate builder agent.

[0004]

The present inventors have found that the combination of a specific nonionic surfactant produces a synergistically high cleaning performance, and have completed the present invention. That is, the liquid detergent composition of the present invention comprises the following components (a) and (b) in a weight ratio (a) :( b) =
It is characterized by containing in the range of 95: 5 to 50:50. (A) A nonionic surfactant represented by the general formula (1) of the following chemical formula 3.

[0005]

Embedded image R ¹ —O (EO) k (PO) 1H (1) (R ¹ : alkyl group or alkenyl group having 10 to 16 carbon atoms EO: ethylene oxide group PO: propylene oxide group k: 5 to 6 Average number of moles of ethylene oxide added in the range 1: Average number of moles of propylene oxide added in the range of 1 to 2) (b) A nonionic surfactant represented by the following general formula (2).

[0006]

Embedded image R ² —O (EO) m (PO) nH (2) (R ² : alkyl or alkenyl group having 10 to 16 carbon atoms EO: ethylene oxide group PO: propylene oxide group m: 12 to 15 Average number of moles of ethylene oxide added in the range n: Average number of moles of propylene oxide added in the range of 1 to 3)

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The nonionic surfactant as the component (a) used in the liquid detergent composition of the present invention has the general formula (1).
Polyoxyethylene polyoxypropylene alkyl obtained by adding 5 to 6 mol of ethylene oxide (EO) on average and 1 to 2 mol of propylene oxide (PO) on average to primary or secondary alcohol having 10 to 16 carbon atoms represented by Or, it is an alkenyl ether, and the addition method of ethylene oxide and propylene oxide is not limited, but a block of propylene oxide after addition of ethylene oxide is preferable. The alkyl group or alkenyl group may be linear or branched.

When the average added mole number of ethylene oxide of the component (a) is 4 or less or 7 or more, the synergistic effect with the component (b) is not sufficiently exhibited and the cleaning performance becomes insufficient, which is not preferable. When propylene oxide is not added to the component (a) or when the average number of moles of propylene oxide added is 3 or more, the synergistic effect with the component (b) is not sufficiently exhibited and the cleaning performance becomes insufficient, which is not preferable. .

The nonionic surfactant as the component (b) used in the liquid detergent composition of the present invention is ethylene oxide (EO) in a primary or secondary alcohol having 10 to 16 carbon atoms represented by the general formula (2). ) On average of 12 to 15 mol and propylene oxide (PO) on average of 1 to 3 mol are added to the polyoxyethylene polyoxypropylene alkyl or alkenyl ether, and the addition method of ethylene oxide and propylene oxide is limited. However, a block addition of propylene oxide after addition of ethylene oxide is preferable. The alkyl group or alkenyl group may be linear or branched.

If the average added mole number of ethylene oxide of the component (b) is 11 or less, the synergistic effect with the component (a) will not be sufficiently exhibited and the cleaning performance will be insufficient, which is not preferable, and if it exceeds 16, raw It is not preferable because the degradability deteriorates significantly. When propylene oxide is not added to the component (b), the synergistic effect with the component (a) is not sufficiently exhibited and the cleaning performance becomes insufficient, which is not preferable, and when it exceeds 4, biodegradability is remarkably deteriorated. It's not good.

The weight ratio of the components (a) and (b) is (a) :( b) = 95: 5 to 50:50, preferably (a) :( b) =. 90:10 to 60: 4
It is in the range of 0. The mixing ratio of the component (a) and the component (b) is
If the weight ratio is outside the range of (a) :( b) = 95: 5 to 50:50, the cleaning performance is not sufficiently exhibited, which is not preferable.

The component (a) and the component (b) nonionic surfactants are preferably added to the liquid detergent composition in a total amount of 10 to 60% by weight, and more preferably 15 to 60% by weight.
55 wt% is compounded. The liquid cleaning composition of the present invention may contain the following components if necessary.

1) Linear or branched alkylbenzene sulfonate having an alkyl group having 8 to 16 carbon atoms, alkyl sulfate or alkenyl sulfate having 10 to 20 carbon atoms, olefin sulfonate having 10 to 20 carbon atoms, Alkane sulfonate having 10 to 20 carbon atoms, 10 to 2 carbon atoms
It has a straight-chain or branched-chain alkyl or alkenyl group of 0 and has 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. Alkyl ether sulphate or alkenyl ether sulphate added in a ratio of 9 / 0.1, having a straight or branched chain alkyl or alkenyl group having 10 to 20 carbon atoms and having an average of 0.5 to 8 mol Ethylene oxide or propylene oxide or butylene oxide or ethylene oxide / propylene oxide = 0.1 / 9.9 to 9.9 / 0.1
Alkyl ether carboxylate or alkenyl ether carboxylate added in the ratio of C, alkyl polyhydric alcohol ether sulfate such as alkyl glyceryl ether sulfonic acid having 10 to 20 carbon atoms, higher fatty acid salt having 10 to 20 carbon atoms, carbon Saturated or unsaturated α-of the equations 8 to 20
Anionic surfactants such as sulfo fatty acid salts or their methyl, ethyl or propyl esters, amino acid type surfactants, N-acyl amino acid type surfactants such as acyl sarcosinates.

2) Amphoteric surfactants having 8 to 16 carbon atoms such as betaine alkyldimethylaminoacetate, dimethylhexadecylcarboxymethylammonium betaine and dimethylhexadecylsulfopropyleneammonium betaine.

3) Alkanolamines such as monoethanolamine, diethanolamine, triethanolamine and diethylaminoethanol. 4) Hydrotrope agents such as short-chain alkylbenzene sulfonates, lower alcohols and polyhydric alcohols.

5) Enzymes such as protease, amylase, cellulase and lipase. 6) A foam control agent such as silicone. 7) Fluorescent agents, fragrances, antioxidants, etc.

[0017]

Industrial Applicability The liquid detergent composition of the present invention is a liquid detergent composition which exhibits high cleaning performance without requiring a chelating builder agent and is suitable for cleaning clothes.

[0018]

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
Terg-O-Tometer of the same company is used as a cleaning device, and 10 pieces of soil cloth, sebum cloth, and clean knitted cloth made by the following method as a sebum stain model are put into this, and the bath ratio is adjusted to 30 times, 120 rpm, 10 at 25 ° C
Wash for minutes. As the cleaning liquid, 900 mL of a cleaning agent concentration of 0.067% is used, and rinsing is performed with 900 mL of water for 3 minutes. The water used was 5 degrees DH. The detergency was calculated by the following formula 1.

[0020]

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

[Preparation Method of Dirty Cloth] Cotton broad # 100 is cut into 10 cm × 10 cm, which is attached to a 5 cmφ × 5 cm cylindrical container. By rubbing this container on the skin, the soiled cloth becomes a dirty cloth.

Examples / Comparative Examples 1 to 26 The liquid detergent compositions shown in Tables 1 to 10 were prepared and the detergency was evaluated. Note that Examples and Comparative Examples 1 to 19 show examples of alkaline liquid detergents, and Examples and Comparative Examples 20 to 2
6 shows an example of a neutral liquid detergent.

The description in the table is as follows. Nonionic surfactant: The structure is shown by the alcohol residue of RO and the average number of moles of EO and PO added in the general formula (4) of the following chemical formula 5. The order of addition is PO after EO addition.
Was added to the block.

[0024]

## STR00005 ## RO (EO) m (PO) n (4) (RO: alcohol residue m, n: average number of moles added) Diadol 13: branched chain-containing synthetic higher alcohol having 13 carbon atoms as a main component (direct Chain rate 60%) (manufactured by Mitsubishi Chemical Co., Ltd.) Dobanol 23: Synthetic higher alcohol containing 80 to 13 carbon atoms as a main component and containing α-methyl branch (80% linear chain) (manufactured by Mitsubishi Chemical Corporation) ) Diadol 13 (EO) ₃ SO ₃ Na: Diadol
Alcohol ethoxysulfate sodium (sodium alkyl ether sulfate) in which ethylene oxide is added to 13 on average 3 mols Proteolytic enzyme: MAXAPEM (manufactured by GIST) Fluorescent agent: Tinopanol CBS (manufactured by Ciba Geigy) Is shown divided into two tables. Examples 1 to 6: Table 1 and Table 2 Examples 7 to 11: Table 3 and Table 4 Comparative Examples 12 to 15: Table 5 and Table 6 Comparative Examples 16 to 19: Table 7 and Table 8

[0025]

[Table 1]Table 1: Part 1 of composition (wt%) of Examples 1 to 6 EO average PO average RO additionExample  Number of moles Number of moles 1 2 3 4 5 6 Non-ionic surfactant Diadol 13 6 1 40 45 − − 35 − Diadol 13 6 2 − − 33 − − 35 Dobanol 23 5 1 − − − 30 − − Diadol 13 15 3 10 − − 20 15 15 Dobanol 23 15 1 − − 12 − − − Diadol 13 12 3 − 5 − − − − Diadol 13 6 0 − − − − − − Diadol 13 12 0 − − − − − − Diadol 13 10 2 − − − − − − Diadol 13 18 2 − − − − − − Dobanol 23 4 2 − − − − − −

[0026]

[Table 2]Table 2: Part 2 of compositions (wt%) of Examples 1 to 6 and evaluation results Example 1 2 3 4 5 6 Other Ingredients Diadol 13 (EO)₃SO₃Na − − − − − − Linear alkylbenzene − − − − − 3 Sodium sulfonate Potassium oleate − − − − 2-Lauryl dimethylamino acetic acid betaine 5 5 5 5 − Diethanolamine 10 10 10 10 10 10 Triethanolamine − − − − − − Paratoluenesulfonic acid − − − − − − Diethanolamine Paratoluene sulfonic acid − − − − − 1 Monoethanolamine Metaxylene sulfonic acid − − − − − − Diethanolamine Ethylene glycol − − − − − Propylene glycol − − − − − − Ethanol 4 4 4 4 4 4 Phenoxyethanol − − − − − 2 Proteolytic enzyme 0.6 0.6 0.6 0.6 0.6 0.6 Perfume 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 Water balance (a) :( b) Weight ratio 80:20 90:10 73:27 60:40 70:30 70:30 Detergency 85 85 85 86 85 86

[0027]

[Table 3] Table 3: Composition (wt%) of Examples 7 to 1 Part 1 EO average PO average RO addition Addition example mole number mole number 7 8 9 10 11 nonionic surfactant Diadol 13 61-33 − 32 32 Diadol 13 6 2 − − − − − Dobanol 23 5 1 40 − 37 − − Diadol 13 15 3 5 4 − 4 4 Dobanol 23 15 1 − − − − − Diadol 13 12 3 − − 5 − − Diadol 13 6 0 − − − − − Diadol 13 12 0 − − − − − Diadol 13 10 2 − − − − − Diadol 13 18 2 − − − − − Dobanol 23 4 2 − − − − −

[0028]

[Table 4]Table 4: Part 2 of compositions (wt%) of Examples 7 to 11 and evaluation results Example 7 8 9 10 11 Other Ingredients Diadol 13 (EO)₃SO₃Na-16 11 16 16 Sodium straight-chain alkylbenzene sulfonate ----- Potassium oleate ----- Laurel dimethylamino acetic acid betaine 5 ---- Diethanolamine 10 10 10 7 10 Triethanolamine ---- 3-Para Toluenesulfonic acid diethanolamine-6 --- Paratoluenesulfonic acid 2 ---- Monoethanolamine Meta-xylenesulfonic acid Diethanolamine-6 --- Ethylene glycol--6-Propylene glycol ---- 6 Ethanol 4 3 3 3 3 Phenoxyethanol − − − − − Proteolytic enzyme 0.6 − 0.5 0.5 0.5 Perfume 0.2 − 0.2 0.2 0.2 Fluorescent agent 0.3 − 0.3 0.3 0.3 Water balance (a) :( b) Weight ratio 89:11 89:11 88:12 89:11 89:11 Detergency 85 85 84 85 85

[0029]

[Table 5] Table 5: Compositions (wt%) of Comparative Examples 12 to 15 Part 1 EO Average PO Average RO Addition Ratio Comparative Example Mol Number Mol Number 12 13 14 15 Nonionic Surfactant Diadol 13 6 1-20 35 − Diadol 13 6 2 15 − − − Dobanol 23 5 1 − − − − Diadol 13 15 3 − 30 − − Dobanol 23 15 1 35 − − 10 Diadol 13 12 3 − − − − Diadol 13 6 0 − − − 40 Diadol 13 12 0 − − 15 − Diadol 13 10 2 − − − − Diadol 13 18 2 − − − − Dobanol 23 4 2 − − − −

[0030]

[Table 6] Table 6: Part 2 of composition (wt%) of Comparative Examples 12 to 15 and evaluation result ratio Comparative Example 12 13 14 15 Other components Diadol 13 (EO) ₃ SO ₃ Na ----- Linear alkylbenzene Sodium sulfonate − − − − Potassium oleate − − − − Lauryl dimethylamino acetic acid betaine 5 5 5 5 Diethanolamine 10 10 10 10 Triethanolamine − − − − Paratoluene sulfonic acid Diethanolamine − − − − Paratoluene sulfonic acid − − − − Monoethanolamine Metaxylene sulfonic acid Diethanolamine − − − − Ethylene glycol − − − − Propylene glycol − − − − Ethanol 4 4 4 4 Phenoxyethanol − − − − Proteolytic enzyme 0.6 0.6 0.6 0.6 Perfume 0.2 0.2 0.2 0.2 Fluorescent agent 0.3 0.3 0.3 0.3 Water balance (a) :( b) Weight ratio 30:70 40:60 − − Detergency 8 0 81 80 82

[0031]

[Table 7] Table 7: Part 1 of Compositions (wt%) of Comparative Examples 16 to 19 EO Average PO Average RO Addition Ratio Comparative Example Mol Number Mol Number 16 17 18 19 Nonionic Surfactant Diadol 13 6 1-30 − − Diadol 13 6 2 45 − 30 − Dobanol 23 5 1 − − − − Diadol 13 15 3 − − − 20 Dobanol 23 15 1 − − − − Diadol 13 12 3 − − − − Diadol 13 6 0 − − − − Diadol 13 12 0 − − − − Diadol 13 10 2 − 20 − − Diadol 13 18 2 − − 20 − Dobanol 23 4 2 − − − 30

[0032]

[Table 8] Table 8: Part 2 of composition (wt%) of Comparative Examples 16 to 19 and comparison of evaluation results Comparative Example 16 17 18 19 Other components Diadol 13 (EO) ₃ SO ₃ Na ----- Linear alkylbenzene Sodium sulfonate − − − − Potassium oleate − − − − Lauryl dimethylamino acetic acid betaine 5 5 5 5 Diethanolamine 10 10 10 10 Triethanolamine − − − − Paratoluene sulfonic acid Diethanolamine − − − − Paratoluene sulfonic acid − − − − Monoethanolamine Metaxylenesulfonic acid Diethanolamine − − − − Ethylene glycol − − − − Propylene glycol − − − − Ethanol 4 4 4 4 Phenoxyethanol − − − − Proteolytic enzyme 0.6 0.6 0.6 0.6 Perfume 0.2 0.2 0.2 0.2 Fluorescent agent 0.3 0.3 0.3 0.3 Water balance (a) :( b) Weight ratio − − − − Detergency 81 80 78 80

[0033]

[Table 9] Table 9: Compositions (wt%) of Examples 20 to 23 and evaluation results EO average PO average RO addition addition actual example mole number mole number 20 21 22 23 nonionic surfactant Diadol 13 5 1 40 45 − − Diadol 13 6 2 − − 33 30 Diadol 13 15 3 10 − − − Dobanol 23 12 3 − 5 12 20 Other ingredients Ethanol 5 5 5 5 Hexylene glycol 10 10 10 10 Perfume 0.2 0.2 0.2 0.2 Water balance scan (a) :( b) weight ratio of 80:20 to 90:10 73:27 to 60:40 detergency 78 77 76 78

[0034]

[Table 10] Table 10: Compositions and evaluation results of Comparative Examples 24 to 26 EO average PO average RO addition addition ratio Comparative number of moles Number of moles 24 25 26 Nonionic surfactant Diadol 13 5 1 50 20 − Diadol 13 6 2 − − − Diadol 13 15 3 − − − Dobanol 23 12 3 − 30 50 Other ingredients Ethanol 5 5 5 Hexylene glycol 10 10 10 Perfume 0.2 0.2 0.2 Water balance (a) :( b) Weight ratio 100: 0 40:60 0: 100 Detergency 67 70 68

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[Procedure amendment]

[Submission date] March 20, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

[0028]

[Table 4]Table 4: Part 2 of compositions (wt%) of Examples 7 to 11 and evaluation results Example 7 8 9 10 11 Other Ingredients Diadol 13 (EO)₃SO₃Na-16 11 16 16 Sodium linear alkylbenzene sulfonate ----- Potassium oleate ----- Laurel dimethylamino acetic acid betaine 5 ---- Diethanolamine 10 10 10 7 10 Triethanolamine ---- 3-Para Toluenesulfonic acid diethanolamine-6 --- Paratoluenesulfonic acid 2 ---- Monoethanolamine Meta-xylenesulfonic acid Diethanolamine-6 --- Ethylene glycol--6-Propylene glycol ---- 6 Ethanol 4 3 3 3 3 Phenoxyethanol − − − − − Proteolytic enzyme 0.6 0.7 0.5 0.5 0.5 Perfume 0.2 0.2 0.2 0.2 0.2 Fluorescent agent 0.3 0.3 0.3 0.3 0.3 Water balance (a) :( b) Weight ratio 89:11 89:11 88:12 89:11 89:11 Detergency 85 85 84 85 85

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshifumi Fukumoto 1-3-7, Sumida-ku, Tokyo Lion Corporation (72) Inventor Teruhisa Satsuki 1-3-7, Sumida-ku, Tokyo No. Lion Co., Ltd.

Claims (1)

[Claims] 1. A nonionic surfactant represented by the general formula (1) of chemical formula (a) and a nonionic surfactant represented by the general formula (2) of chemical formula (2) are weighted. Ratio (a) :( b) = 95: 5 to 50:50
A liquid detergent composition, characterized in that it is contained in the range of. Embedded image R ¹ —O (EO) k (PO) lH (1) (R ¹ : alkyl or alkenyl group having 10 to 16 carbon atoms EO: ethylene oxide group PO: propylene oxide group k: 5 to 6 Average number of moles of ethylene oxide added in the range 1: Average number of moles of propylene oxide added in the range of 1 to 2) embedded image R ² —O (EO) m (PO) nH (2) (R ² : carbon number 10 to 16 alkyl group or alkenyl group EO: ethylene oxide group PO: propylene oxide group m: ethylene oxide average addition mole number in the range of 12 to 15 n: propylene oxide average addition mole number in the range of 1 to 3)