JP2005281640A - Detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition having creamy foam quality, excellent in foam stability, without sliming in rinsing, obtaining moist wash finishing and having skin chapping preventive effect. <P>SOLUTION: The detergent composition comprises (a) 0.1-30 wt.% alkyleneoxide derivative represented by specific formula (I) and (b) 0.5-40 wt.% one or more selected from anionic surfactants having sulfate group or sulfone group and amphoteric surfactants, wherein the ratio (a/b) is 1/40 to 2/1 by weight. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to detergents for body soaps, hand soaps, facial cleansers, hair shampoos, and the like. More specifically, the foam quality is creamy and foamy, it does not get wet during rinsing, and the finish is moist and moisturized. The present invention relates to a cleaning composition having a preventive effect.

Anionic surfactants such as polyoxyethylene lauryl ether sulfate used for cleaning agents and amphoteric surfactants such as amidopropyl betaine have the advantage of being excellent in hard water resistance and not rubbed during rinsing. .
However, anionic surfactants and amphoteric surfactants having a sulfate group or a sulfonate group have a foam characteristic that the foam quality is rough, light and lacks creamy properties, and the foam does not have good foam properties. There was a problem of having a slimy feeling.
For example, a composition using an acyl isethionate and a betaine-type amphoteric surfactant (see Patent Document 1), an alkyl ether sulfate-type anionic surfactant, an amphoteric surfactant and a cationic polymer in combination Things are known. However, these detergent compositions sometimes have a foamy creamy property and may remain slimy after use.
In addition, the ratio of sensitive skin has rapidly increased due to excessive cleanliness due to cleanliness in recent years and stress due to social life, and it has become more important to prevent rough skin. Therefore, a rough skin preventing component such as a moisturizing agent, a skin protecting agent, and an anti-inflammatory agent is added to the cleaning agent.
For example, a detergent composition (see Patent Document 2) in which glycyrrhetinic acid, a polyhydric alcohol, and an acylamino acid surfactant are combined has been proposed. This detergent composition is a low-irritant composition with good foam amount and creamy properties, but the feeling of slimming during rinsing and rinsing and the effect of preventing rough skin were not sufficient. Further, a detergent composition (see Patent Document 3) in which an acylmethyl taurine type surfactant, an amphoteric surfactant, and polyethylene glycol having an average molecular weight of 1000 to 10000 is proposed has been proposed. The quality and feel during rinsing were good, but the moist feeling after washing and the effect of preventing rough skin were not sufficient.
JP-A-60-161498 JP 2000-87081 A JP 2003-277792 A

The present invention provides a cleaning composition that solves the above problems, has a foam quality that is creamy and excellent in foaminess, that does not get wet during rinsing, has a moist finish, and has an effect of preventing rough skin. Objective.

That is, the present invention
a. 0.1 to 30% by weight of an alkylene oxide derivative represented by the following formula (I), b. 0.5-40% by weight of an anionic or amphoteric surfactant having a sulfate group is contained, and the ratio of a to b (a / b) is 1/40 to 2/1 by weight. A cleaning composition characterized by the above.
HO-[(EO) m (PO) n (BO) p] -H (I)
(In the formula, EO represents an oxyethylene group, PO represents an oxypropylene group, BO represents an oxybutylene group, m, n, and p are the respective average added mole numbers, m is 4 to 70, and n is 1 to 70. , P is 1 to 5, the sum of m, n and p (m + n + p) is 10 to 100, and the ratio of m to n + p (m / (n + p)) is 1/4 to 4/1.)

The detergent composition of the present invention has a creamy and excellent foam quality, does not get wet during rinsing, is moist after washing, and can effectively prevent rough skin.

The component a used in the cleaning composition of the present invention is an alkylene oxide derivative represented by the formula (I).
In the formula (I), EO represents an oxyethylene group, PO represents an oxypropylene group, BO represents an oxybutylene group, and m, n, and p represent respective average addition mole numbers. m is 4 to 70, n is 1 to 70, preferably m is 4 to 60, and preferably n is 1 to 40. p is 1 to 5, and the total (m + n + p) of m, n and p is 10 to 100, preferably 15 to 90. When m + n + p is less than 10, the foam quality and foaminess are deteriorated, the feeling of sliminess remains at the time of rinsing, and the effect of preventing rough skin is weakened. On the other hand, if it exceeds 100, a slimy feeling remains at the time of rinsing, and the blending may be difficult.
The ratio of m to n + p (m / (n + p)) is 1/4 to 4/1. When m / (n + p) is less than 1/4, the effect of preventing rough skin is weakened, and when it exceeds 4/1, a feeling of sliminess remains during rinsing and the effect of preventing rough skin is weakened. Furthermore, it is preferable that the ratio of n and p (n / p) is 1/1 to 20/1 from the viewpoint of improving the rough skin prevention effect and the feeling during rinsing.
In addition, the compound of a formula (I) is manufactured by a well-known method using ethylene oxide, propylene oxide, and butylene oxide. Butylene oxide includes 1,2-butylene oxide, 2,3-butylene oxide, and isobutylene oxide, but is preferably 1,2-butylene oxide from the standpoint of availability and ease of reaction control. .

In addition, when adding these alkylene oxides, an addition reaction is usually performed using a phase transfer catalyst, a Lewis acid catalyst, an alkali catalyst, or the like. In general, it is preferable to use an alkali catalyst such as potassium hydroxide. For example, a glycol compound such as propylene glycol and potassium hydroxide as a catalyst are charged into an autoclave, the air in the autoclave is replaced with dry nitrogen, and then the catalyst is completely dissolved at 140 ° C. with stirring. Next, a mixture of ethylene oxide and propylene oxide is dropped by a dropping device and stirred for about 2 hours. Next, the target compound can be obtained by dropping 1,2-butylene oxide and stirring for 2 hours for aging.
The amount of component a used in the present invention is 0.1 to 30% by weight, preferably 0.1 to 20% by weight. When the amount is less than 0.1% by weight, the foam quality is poor, the feeling of slimness remains at the time of rinsing, the moist feeling after washing is insufficient, and the effect of preventing rough skin is weakened. Moreover, when it exceeds 30 weight%, foam quality and foamability will worsen.
The component b used in the present invention is a surfactant selected from an anionic surfactant having a sulfate group or a sulfonate group, and an amphoteric surfactant.

Examples of the anionic surfactant having a sulfate group include alkyl sulfate, polyoxyethylene alkyl ether sulfate, and polyoxyethylene amide ether sulfate type anionic surfactants. Examples of the activator include acyl isethionate and acylalkyl taurine salt type anionic surfactants. Examples of amphoteric surfactants include amidoamino acids, alkyliminodicarboxylic acids, alkylbetaines, amidopropylbetaines, and alkylsulfobetaine-type amphoteric surfactants.
Among these surfactants, polyoxyethylene alkyl ether sulfate, polyoxyethylene amide ether sulfate, and acylalkyl taurine salt type anionic properties are preferred in terms of foaming properties, rinsing feel and washing feeling. One or more components selected from a surfactant, an amide amino acid, an alkyliminodicarboxylic acid, and an amidopropyl betaine type amphoteric surfactant.
The amount of component b used in the present invention is 0.5 to 40% by weight, preferably 1 to 35% by weight. When the amount is less than 0.5% by weight, the foamy, foam creamy and foaming properties are deteriorated. When the amount exceeds 40% by weight, the stability with time is poor and preparation may be difficult.
The ratio (a / b) of the component a and component b used in the present invention is 1/40 to 2/1, preferably 1/30 to 3/2, by weight. If it is less than 1/40, a feeling of sliminess remains at the time of rinsing, a moist feeling after washing is insufficient, and the effect of preventing rough skin is weakened. When it exceeds 2/1, foamability, foam quality, and foaminess are deteriorated.

Furthermore, in the cleaning composition of the present invention, it is preferable to add a divalent or higher water-soluble polyhydric alcohol having 2 to 8 carbon atoms for the purpose of further improving the feel of washing, propylene glycol, dipropylene Glycol, isoprene glycol, 1,3-butylene glycol, glycerin, diglycerin, triglycerin, sorbitol, maltitol and the like can be mentioned, among which glycerin or diglycerin is preferable.
The addition amount of the divalent or higher water-soluble polyhydric alcohol having 2 to 8 carbon atoms is 0.1 to 30% by weight, preferably 0.2 to 20% by weight, It is preferable to add at a weight ratio of 1/10 to 10/1, preferably 1/5 to 5/1.

In the cleaning composition of this invention, it is also possible to mix | blend components other than the component used for this invention in the range which does not impair an effect. For example, hydrocarbon oils such as liquid paraffin and liquid isoparaffin, natural fats and oils such as beef tallow, lard and fish oil, synthetic triglycerides such as glyceryl tri-2-ethylhexanoate, ester oils such as oleyl oleate and octyldodecyl myristate , Waxes such as beeswax and carnauba wax, nonionics such as linear and cyclic dimethylpolysiloxane, polyether-modified dimethylpolysiloxane, silicone derivatives such as amino-modified dimethylpolysiloxane, polyoxyethylene alkyl ether, and fatty acid esters of polyethylene glycol Surfactants, cationic surfactants such as alkyltrimethylammonium chloride, water-soluble polymers such as alginic acid and carboxyvinyl polymer, organic or inorganic such as pyrrolidone carboxylate, citrate, malate, and salt S, acid and alkali is pH adjusting agent, fungicides, chelating agents, antioxidants, ultraviolet absorbers, vitamins, natural extracts derived from animals and plants, dyes, pigments and perfumes can be blended.

Next, the present invention will be described in more detail by way of examples.
Preparation of component a (Preparation of compounds A1 to A4)
76 g of propylene glycol and 3.1 g of potassium hydroxide as a catalyst were charged into an autoclave. After the air in the autoclave was replaced with dry nitrogen, the catalyst was completely dissolved at 140 ° C. with stirring. Next, a mixture of 554 g of ethylene oxide and 487 g of propylene oxide is dropped by a dropping device and stirred for 2 hours. Next, 227 g of 1,2-butylene oxide was added dropwise and stirred for 2 hours for aging. Thereafter, the catalyst was neutralized with phosphoric acid and filtered to obtain Compound A1. Further, 2218 g of ethylene oxide, 1644 g of propylene oxide and 302 g of 1,2-butylene oxide were reacted under the same conditions, and the purified compound A2, 370 g of ethylene oxide, 183 g of propylene oxide and 227 g of 1,2-butylene oxide were reacted, and the purified compound A3, ethylene oxide 4435 g, propylene oxide 548 g and 1,2-butylene oxide 227 g were reacted to obtain purified compound A4.
Table 1 shows the compositions of the alkylene oxide derivatives (compounds A1 to A4).

Examples 1-8 and Comparative Examples 1-5
The cleaning compositions shown in Tables 3 and 4 were prepared using 9 components shown in Table 2 as common components. (1) Roughness prevention effect, (2) Foam quality, (3) Foam, (4) Rinse feel, (5) Washing feel, (6) Foaming properties were evaluated by the following methods. . The results are shown in Tables 3 and 4.

(1) Rough skin prevention effect 20 males and females (20-40 years old) were panelists, and 10 μL of each composition diluted to 10% by weight with purified water was occluded and pasted on the forearm for 24 hours. The effect of preventing rough skin was evaluated by the following criteria by observing the skin reaction 24 hours after the removal. The average value of 20 persons was calculated | required and 15 or more points were evaluated as a composition with a high rough skin prevention effect.
20 points: When erythema is not observed 15 points: When slight erythema is recognized to be faintly observed.
10 points: When mild to moderate erythema is observed.
5 points: When moderate to strong erythema is observed.
0 point: When deep red intense erythema and edema are observed.

(2) Each composition diluted to 5% by weight of foam was stirred for 5 seconds with a Milcer tester (Iwatani IFM-100), and the density of the foam after standing for 1 minute was measured and evaluated according to the following criteria. The test was performed 5 times, the average value was calculated | required, and 15 or more points | pieces evaluated that a foam was a creamy composition.
20 points: When the foam density was 0.04 or more.
15 points: When the density of the foam was 0.03 or more and less than 0.04.
10 points: When the density of the foam was 0.02 or more and less than 0.03.
5 points: When the density of the foam was 0.01 or more and less than 0.02.
0 point: When the density of the foam was less than 0.01.

(3) An aqueous solution having a foam-moist composition concentration of 5% by weight was prepared, and the foam height was measured at 25 ° C. immediately after charging and after 5 minutes by the Ross-Miles method, and the foam-moist index was obtained from the following formula. The same test was performed 5 times, the average value was calculated | required, and the thing with a foamy index was 15 or more was evaluated as a composition with good foaming.
Foam sticky index = [(bubble height after 5 minutes) / (bubble height immediately after sample introduction)] × 20
(4) Feel at the time of rinsing 20 men and women (20 to 40 years old) were panelists, and the feel when the forearm and fingers were washed with hot water using 3 g of each composition was evaluated according to the following criteria. The average value of 20 persons was calculated | required and it evaluated that it was a composition without sliminess at the time of rinsing 15 points or more.
20 points: When feeling that there is no sliminess at the time of rinsing.
10 points: When rinsing feels slightly slimy.
0 points: When you feel that you are very slimy when rinsing.

(5) Feeling after washing 20 men and women (20 to 40 years old) were panelists, and the feeling after washing after washing the forearm and fingers with 3 g of each composition was evaluated according to the following criteria. The average value of 20 persons was calculated | required and it evaluated that it was a composition with which the skin after washing | cleaning moistened 15 points or more.
20 points: When the washed skin feels very moist.
10 points: When the skin after washing feels slightly moist.
0 points: When the skin that was washed was not moist at all.
(6) Foaming 20 males and females (20 to 40 years old) are panelists, and the foaming properties when the forearms and fingers are washed using 3 g of each composition are determined as follows. The value was calculated | required and 15 or more points were evaluated as a foaming good composition.
20 points: When it feels to foam particularly quickly.
10 points: When it feels to foam quickly.
0 point: When foaming is felt slow.

From Examples 1 to 8, all of the cleaning compositions of the present invention were creamy and excellent in foaminess, and were not wet when rinsed, moistened after washing, and excellent in foaming properties. Moreover, rough skin was effectively prevented.
On the other hand, in Comparative Examples 1-5, sufficient performance is not obtained. In Comparative Example 1, since the component a was not blended, the effect of preventing rough skin was weak, the foam quality was not creamy, and the feeling of washing was poor when washed during rinsing. In Comparative Example 2, since an alkylene oxide derivative different from the component a was blended, there was a feeling of sliminess during rinsing, and the effect of preventing rough skin was weak. In Comparative Example 3, since a / b was blended exceeding the range of the present invention, when rinsing, the feeling of washing was poor and the effect of preventing rough skin was weak. In Comparative Example 4, since a / b was blended exceeding the range of the present invention, the foam quality was not creamy, and foaming and foaming were bad. In Comparative Example 5, the b component was blended less than the range of the present invention, so foaming was poor and foam quality was rough.

Claims (1)

a. 0.1 to 30% by weight of an alkylene oxide derivative represented by the following formula (I), b. 0.5 to 40% by weight of at least one selected from an anionic surfactant having a sulfuric acid group or a sulfonic acid group and an amphoteric surfactant, and the ratio of a and b (a / b) is a weight ratio. 1/40 to 2/1.
HO-[(EO) m (PO) n (BO) p] -H (I)
(In the formula, EO represents an oxyethylene group, PO represents an oxypropylene group, BO represents an oxybutylene group, m, n, and p are the respective average added mole numbers, m is 4 to 70, and n is 1 to 70. , P is 1 to 5, the sum of m, n and p (m + n + p) is 10 to 100, and the ratio of m to n + p (m / (n + p)) is 1/4 to 4/1.)