JP3573312B2 - Detergent composition - Google Patents

Description

【００１０】
［注］
１）原料オレイン酸の脂肪酸組成
Ｃ_１６ ：３．５重量％
Ｃ_１６（二重結合１個含有）：１．１重量％
Ｃ_１８ ：１．１重量％
Ｃ_１８（二重結合１個含有）：４３．３重量％
Ｃ_１８（二重結合２個含有）：４３．４重量％
Ｃ_１８（二重結合３個含有）：６．１重量％
その他 ：１．５重量％
結合硫酸量 １０．２重量％
２）原料オレイン酸の脂肪酸組成
Ｃ_１４ ：２．６重量％
Ｃ_１４（二重結合１個含有）：１．６重量％
Ｃ_１６ ：３．５重量％
Ｃ_１６（二重結合１個含有）：６．４重量％
Ｃ_１８ ：１．２重量％
Ｃ_１８（二重結合１個含有）：７３．８重量％
Ｃ_１８（二重結合２個含有）：６．２重量％
Ｃ_１８（二重結合３個含有）：１．６重量％
その他 ：３．１重量％
結合硫酸量 ６．３重量％
【００１１】
【表２】

【００１２】
比較例１〜４
前記第１表に示す原料及びステアリン酸ナトリウムを用い、第３表に示す量の有効成分とイオン交換水とを含有する洗浄剤組成物を調製し、その性能を評価した。結果を第３表に示す。
【００１３】
【表３】

【００１４】
【発明の効果】
本発明の洗浄剤組成物は、機械力が小さい場合でも優れた洗浄力を発揮するとともに、洗浄後の風合いに優れ、かつ良好な低温安定性を有し、特に通常の洗濯では布地を損傷する可能性のある衣類用の洗浄剤として好適である。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a detergent composition, and more specifically, exhibits excellent detergency even when mechanical strength is small, has an excellent texture after washing, and has good low-temperature stability, and is particularly suitable for clothing. The present invention relates to a novel cleaning composition.
[0002]
[Prior art]
Conventionally, in the usual washing at home, clothes that may damage the fabric are generally dry-cleaned, but in recent years, in order to wash these clothes at home, for example, Detergents (fashion detergents) and dry mark detergents (dry mark detergents) are on the market.
When a dry mark detergent is used, it is common to perform a soak washing or a wool course of a washing machine or a dry mark course. Examples of the dry mark detergent include a specific cationic surfactant, a nonionic surfactant, a combination of an amine oxide and a glycol ether (JP-A-8-48993), a specific cationic surfactant, a nonionic surfactant. Combination of activator, amine oxide and alcohol (JP-A-8-48994), combination of specific cationic surfactant, nonionic surfactant, amine oxide and polyhydric alcohol (JP-A-8-48995) And so on.
However, these dry mark detergents are used for washing by placing or washing in a wool course or a dry mark course of a washing machine as described above in order to suppress damage such as shrinkage of clothes. Since there is no or little power, there is a disadvantage that a sufficiently satisfactory detergency cannot be obtained.
On the other hand, as a composition using a sulfated oil or a sulfated fatty acid, for example, by combining an α-sulfofatty acid ester, a fatty acid soap and a sulfated oil, a powder detergent composition having improved α-sulfofatty acid ester rinsing properties (Japanese Unexamined Patent Publication (Kokai) No. 59-102999), an aqueous surfactant mixture comprising a specific nonionic compound, a fatty acid, an alkyl sulfate and a sulfated unsaturated fatty acid (Japanese Patent Application Laid-Open No. 6-509133), a nonionic compound, a fatty acid A refining composition comprising a salt and a salt of a sulfated animal or vegetable oil (JP-A-6-93558) is known. However, these compositions have the disadvantage that when no or little mechanical force is applied, the cleaning power is poor and the low-temperature stability of the composition is also poor.
[0003]
[Problems to be solved by the invention]
The present invention provides a detergent composition which exhibits excellent detergency even when mechanical strength is small, has an excellent texture after washing, has good low-temperature stability, and is particularly suitable for clothing. It was made for the purpose of.
[0004]
[Means for Solving the Problems]
The present inventors have intensively studied to develop a detergent composition having the above-mentioned preferable properties, and as a result, a specific nonionic compound, a sulfated unsaturated fatty acid salt and a specific solvent are each contained in a specific ratio. It has been found that the object can be achieved by the combination, and the present invention has been completed based on this finding.
That is, the present invention
(1) (A) General formula [1]
R ¹ O (AO) _n H [1]
(Wherein R ¹ represents an alkyl group having 8 to 24 carbon atoms, an alkenyl group, an acyl group or an aryl group, A represents an alkylene group having 2 to 4 carbon atoms, n represents an average number of moles added, Is)
(B) a sulfated unsaturated fatty acid salt and (C) a solvent having 2 to 12 carbon atoms and 2 to 12 carbon atoms and having at least one hydroxyl group, and (A) )) The weight ratio of the component and the component (B) is 100: 200 to 100: 10, and the content of the component (C) is based on the total weight of the component (A), the component (B), and the component (C). The present invention provides a detergent composition characterized by being 3 to 40% by weight.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
In the composition of the present invention, the nonionic compound used as the component (A) is represented by the general formula [1]:
R ¹ O (AO) _n H [1]
It has a structure represented by In the general formula [1], R ¹ is an alkyl group having 8 to 24 carbon atoms, an alkenyl group, an acyl group or an aryl group. The alkyl group, alkenyl group, and acyl group may be linear or branched, and specific examples thereof include octyl, isooctyl, nonyl, isononyl, decyl, isodecyl, undecyl, isoundecyl, dodecyl, isododecyl, tridecyl, and isotridecyl. , Tetradecyl, isotetradecyl, pentadecyl, isopentadecyl, hexadecyl, isohexadecyl, heptadecyl, isoheptadecyl, octadecyl, isooctadecyl, nonadecyl, isononadecyl, eicosyl, isoeicosyl, heneicosyl, isohneicosyl, docosyl, isodocosyl, tricosyl, tetracosyl, isotricosyl Isotetracosyl, oleyl, octanoyl, decanoyl, dodecanoyl, tetradecanoyl, hexadecanoyl, octadecanoy , Eicosanoyl, docosanoyl, groups such as Tetorakosanoiru. As the aryl group, a phenyl group having an alkyl substituent is preferable, and examples thereof include an octylphenyl group, a nonylphenyl group, and a dodecylphenyl group.
A is an alkylene group having 2 to 4 carbon atoms, that is, an ethylene group, a propylene group, and a butylene group, and an ethylene group and a propylene group are preferable. n is an average number of moles added in the range of 7 to 20, preferably 8 to 15. Further, each AO in the molecule may be the same or different, and there is no particular limitation on the bonding, and any of block and random may be used.
[0006]
In the composition of the present invention, the sulfated unsaturated fatty acid salt used as the component (B) is, for example, sulfated unsaturated fatty acid using a sulfating agent such as concentrated sulfuric acid, fuming sulfuric acid or chlorosulfonic acid, and then basic compound And can be obtained by neutralization. At this time, depending on the degree of sulfation, the resulting sulfated unsaturated fatty acid salt also contains an unsaturated fatty acid salt, but the amount of bound sulfuric acid is preferably 2% by weight or more.
As the unsaturated fatty acids, unsaturated fatty acids obtained from animal and vegetable oils and fats can be used, and examples thereof include palmitooleic acid, petroselinic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, and the like. Or a mixture of two or more. Further, a saturated acid may be contained in an appropriate amount. For example, industrial oleic acid containing 40% by weight or less of a saturated acid can be used. On the other hand, examples of the basic compound include potassium hydroxide, sodium hydroxide, monoethanolamine, diethanolamine, triethanolamine, potassium carbonate, sodium carbonate, and the like. These may be used alone or in combination of two or more. May be used in combination.
In the composition of the present invention, the solvent used as the component (C) is a compound having 2 to 12 carbon atoms and having at least one hydroxyl group and having 2 to 12 carbon atoms. Ethylene glycol, propylene glycol, butanediol, 1,6-hexanediol, hexylene glycol, 1,5-pentanediol, diethylene glycol monomethyl ether, 3-methylpentane-1,3,5-triol, 3-methyl-3- Examples include methoxybutanol, glycerin, and ethylene oxide adducts of alcohol and phenol. These may be used alone or in combination of two or more.
[0007]
Regarding the content ratio of the component (A), the component (B) and the component (C) in the composition of the present invention, the weight ratio of the component (A) to the component (B) is in the range of 100: 200 to 100: 10. It is necessary to be. If the proportion of the component (A) is less than the above range, sufficient detergency cannot be obtained, and if it is more than the above range, the texture is impaired. From the viewpoints of detergency and feeling, the preferred weight ratio of the component (A) to the component (B) is in the range of 100: 180 to 100: 11. Further, the content of the component (C) needs to be in the range of 3 to 40% by weight based on the total weight of the components (A), (B), and (C). If the amount is less than 3% by weight, sufficient low-temperature stability cannot be obtained, and if it exceeds 40% by weight, sufficient detergency cannot be obtained. From the viewpoint of the balance between low-temperature stability and detergency, the preferred content of the component (C) is in the range of 5 to 35% by weight based on the total weight of the components (A), (B) and (C). It is.
The detergent composition of the present invention desirably has a pH in the range of 6 to 10 as a 1% by weight aqueous solution. If the pH is less than 6, sufficient detergency cannot be obtained, and if it exceeds 10, the texture may be impaired. The more preferable pH is in the range of 7 to 10 from the viewpoints of detergency and feeling. The pH may be adjusted by preparing the sulfated unsaturated fatty acid salt of the component (B) such that the pH of a 1% by weight aqueous solution thereof is in the range of 7 to 10, or the composition may be prepared in the following manner. The preparation may be performed using an acid or a base. Here, examples of the acid include hydrochloric acid, sulfuric acid, nitric acid, citric acid, malic acid, and lactic acid, and examples of the base include potassium hydroxide, sodium hydroxide, monoethanolamine, diethanolamine, and triethanolamine. No.
Further, the cleaning composition of the present invention can be used by adjusting the concentration by adding water to the above essential components. Further, in the cleaning composition of the present invention, as long as the effects of the present invention are not impaired, other surfactants and conventional components generally added to the cleaning agent as desired, such as builders, fluorescent brighteners, Enzymes, anti-redeposition agents, chelating agents, preservatives, dyes, fragrances and the like can be included.
[0008]
【Example】
Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
The performance of the detergent composition was evaluated according to the following method.
(1) Detergency 15.0% by weight of oleic acid, 7.5% by weight of palmitic acid, 7.5% of myristic acid, 30.0% by weight of tallow hardened oil, 10.0% by weight of cholesterol, 5.0% by weight of squalene A mixture of 10.0% by weight of cetyl alcohol and 15.0% by weight of paraffin with carbon black dispersed therein was used as artificial soil, and this was used to contaminate a white cloth to prepare an artificially contaminated cloth. Provided.
(B) Cleaning test 1
The detergent composition was added to 500 ml of tap water so that the amount of the active ingredient (the component obtained by removing ion-exchanged water from the composition) was 0.5 g, and this was placed in a 1 liter beaker, and 10 cm × 10 cm was added thereto. Two artificially stained cloths are immersed, and the soaking temperature: 20 ° C., soaking time: 20 minutes, rinsing: shaking, dehydration: soaking is performed under the washing condition of 10 seconds after the rotation of the dewatering tank is stabilized. Was.
(B) Cleaning test 2
A 2 cm cotton towel and a 30 cm × 30 cm cotton gold cloth sewn with four 10 cm × 10 cm artificially contaminated cloths were sewn at a water level in a wool course of a washing machine [AW-65VF3 manufactured by Toshiba Corporation] at a water level of 63. 1 liter, the amount of the active ingredient of the detergent composition: 63.0 g, the washing temperature: 20 ° C., the washing time: 4 minutes, the rinsing: two rinses, and the dehydration: 40 seconds, the laundry was washed.
<Evaluation of cleaning power>
The following formula detergency (%) = 100 × (R ₂ −R ₁ ) / (R ₀ −R ₁ )
R ₂ : Reflectance of contaminated cloth after cleaning R ₁ : Reflectance of contaminated cloth before cleaning R ₀ : Reflectance of original white cloth before contamination [Reflectance of each cloth is a color computer manufactured by Suga Test Instruments Co., Ltd. And measured the surface reflectance of the dried cloth.]
And the average was evaluated in the following two steps.
Good detergency: 35% or more detergency: less than 35% detergency (2) Feeling 500 ml of an aqueous solution containing a detergent composition having an active ingredient concentration of 0.1% by weight is placed in a 1-liter beaker, and Was immersed in a 20 cm × 20 cm silk cloth for 10 minutes, shaken and rinsed twice, then dehydrated and dried for 10 seconds. After one cycle of this washing operation and five cycles, an iron [A-V2CM manufactured by Sanyo Electric Co., Ltd.] whose set temperature was lowered (about 100 ° C.) was used as a test cloth.
Twenty women were panelists, and a pair of the cloth was compared with an unwashed cloth based on the feeling of touch. 20 people who rated 3 points if they felt softer than the unwashed cloth, 2 points if they felt slightly soft, 1 point if they felt slightly hard, and 0 points if they felt very hard Were evaluated and evaluated in the following three stages.
Good texture: Average value of 2.5 points or more Slight texture: Average value of less than 2.5 points 1.5 points or more Poor texture: Average value of less than 1.5 points (3) Low-temperature stable detergent composition The product was diluted with ion-exchanged water so that the content of the ion-exchanged water was 50 g per 100 g of the active ingredient, allowed to stand in a thermostat at 0 ° C. for one week, visually observed, and then subjected to the next judgment. Stability was evaluated according to criteria.
：: Transparent, having fluidity and good stability. や: Slightly turbid, but having fluidity and somewhat favorable. △: Turbidity, slightly poor stability. X: No fluidity, stability. Bad Examples 1 to 6
Using the raw materials shown in Table 1, detergent compositions containing the active ingredients in the amounts shown in Table 2 and ion-exchanged water were prepared, and their performance was evaluated. The results are shown in Table 2.
[0009]
[Table 1]

[0010]
[note]
1) Fatty acid composition of raw oleic acid C ₁₆ : 3.5% by weight
C ₁₆ (containing one double bond): 1.1% by weight
C ₁₈ : 1.1% by weight
C ₁₈ (containing one double bond): 43.3% by weight
C ₁₈ (containing 2 double bonds): 43.4% by weight
C ₁₈ (containing 3 double bonds): 6.1% by weight
Others: 1.5% by weight
Amount of bound sulfuric acid 10.2% by weight
2) fatty acid composition of the raw material oleic acid _C 14: 2.6 wt%
C ₁₄ (containing one double bond): 1.6% by weight
C ₁₆ : 3.5% by weight
C ₁₆ (containing one double bond): 6.4% by weight
C ₁₈ : 1.2% by weight
C ₁₈ (containing one double bond): 73.8% by weight
C ₁₈ (containing two double bonds): 6.2% by weight
C ₁₈ (containing 3 double bonds): 1.6% by weight
Others: 3.1% by weight
6.3% by weight of bound sulfuric acid
[0011]
[Table 2]

[0012]
Comparative Examples 1-4
Using the raw materials and sodium stearate shown in Table 1 above, detergent compositions containing the active ingredients in the amounts shown in Table 3 and ion-exchanged water were prepared, and their performance was evaluated. The results are shown in Table 3.
[0013]
[Table 3]

[0014]
【The invention's effect】
The detergent composition of the present invention exhibits excellent detergency even when the mechanical strength is small, has an excellent texture after washing, and has good low-temperature stability, and particularly damages the fabric in ordinary washing. It is suitable as a possible cleaning agent for clothing.

Claims (1)

(A) General formula [1]
R ¹ O (AO) _n H [1]
(Wherein R ¹ represents an alkyl group having 8 to 24 carbon atoms, an alkenyl group, an acyl group or an aryl group, A represents an alkylene group having 2 to 4 carbon atoms, n represents an average number of moles added, Is)
(B) a sulfated unsaturated fatty acid salt and (C) a solvent having 2 to 12 carbon atoms and 2 to 12 carbon atoms and having at least one hydroxyl group, and (A) )) The weight ratio of the component and the component (B) is 100: 200 to 100: 10, and the content of the component (C) is based on the total weight of the component (A), the component (B), and the component (C). The cleaning composition is 3 to 40% by weight.