JP4810844B2 - Cleaning composition - Google Patents

Description

  The present invention relates to a detergent for body soap, hand soap, facial cleanser, hair shampoo and the like. More specifically, the foaming property is good, the foam is creamy, the foam is excellent, and there is no slimy feeling when rinsing. The present invention relates to a cleaning composition that moisturizes the skin later and has an effect of preventing rough skin.

  Anionic surfactants such as polyoxyethylene lauryl ether sulfate used in cleaning agents and amphoteric surfactants such as amidopropyl betaine have the advantage of being excellent in water resistance and not causing rinsing during rinsing. is doing.

  However, an amphoteric surfactant and an anionic surfactant having a sulfate group or a sulfonate group have problems that the foam is rough and lacks creamy properties, has poor foam, and has a slimy feeling during rinsing.

  For example, as a detergent composition containing these amphoteric surfactant and anionic surfactant, a detergent composition containing an acyl isethionate and a betaine amphoteric surfactant (Patent Document 1) and an amide ether sulfate type A detergent composition (Patent Document 2) containing an anionic surfactant and an acylamino acid type surfactant is disclosed. These detergent compositions have insufficient foam creaminess as described above, and may remain slimy after use.

  In recent years, the number of people with sensitive skin has increased rapidly due to excessive cleaning due to cleanliness, stress due to social life, and the like, and it has become more important to prevent rough skin. Therefore, a detergent composition containing a rough skin preventing component such as a humectant, a skin protective agent, and an anti-inflammatory agent has been studied.

  For example, Patent Document 3 discloses a detergent composition containing glycyrrhetinic acid, a polyhydric alcohol, and an acylamino acid surfactant. Although this detergent composition has a creamy foam quality and a sufficient amount of foam, the foam composition has poor foaminess and may feel slimy during rinsing. Furthermore, although it is hypoallergenic, the effect of preventing rough skin may not be sufficient.

Patent Document 4 discloses a detergent composition containing an acylmethyl taurine type surfactant, an amphoteric surfactant and polyethylene glycol having an average molecular weight of 1000 to 10,000. This detergent composition has good foam quality and does not feel slimy when rinsed, but the skin does not become moist after use, and the effect of preventing rough skin may not be sufficient.
JP-A-60-161498 JP-A-6-33093 JP 2000-87081 A JP 2003-277792 A

  An object of the present invention is to provide a detergent composition having good foaming properties, excellent foaminess with a foamy quality, no stickiness when rinsed, moisturizing skin after use, and having an effect of preventing rough skin There is to do.

  As a result of repeated research to solve the above problems, it has been found that a desired detergent composition can be obtained by combining a specific glycerin derivative and a surfactant in a specific ratio, and to complete the present invention. It came.

That is, the cleaning composition of the present invention is a cleaning composition containing a glycerin derivative (a) and a surfactant (b), wherein the glycerin derivative (a) is a derivative represented by the formula (I):
Gly- [O (PO) _m (EO) _n- (BO) _pH ] ₃ (I)
(Wherein Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, and m and n are average added moles of PO and EO, respectively, oxy a value, the weight ratio of PO and EO (PO / EO) are Ri 1 / 5-5 / 1 der, I addition form a random shape der of PO and EO, BO is the 4 carbon atoms Is an alkylene group, and p is the average number of moles of BO added and has a value of 1 to 5, and the surfactant (b) contains an amphoteric surfactant and a sulfate group or sulfonate group. And at least one surfactant selected from the group consisting of an anionic surfactant having 0.1 to 30% by mass of the glycerin derivative (a) and the surfactant in the detergent composition Agent (b) is 0.5 to 40% by mass It is contained in a total, and the weight ratio of the glycerin derivative (a) and surfactant (b) and is 1 / 40-2 / 1.

  The oxyalkylene group having 4 carbon atoms represented by BO means an oxybutylene group, an oxyisobutylene group and / or an oxytetramethylene group.

  The cleaning composition of the present invention has a good foaming property, a creamy foam quality, excellent foaminess, no sliminess when rinsed, moisturizes skin after use, and has an effect of preventing rough skin.

  The cleaning composition of the present invention may be referred to as the following glycerin derivative (a) (hereinafter may be referred to as compound a, component a) and surfactant (b) (hereinafter referred to as compound b, component b). ) And, if necessary, an additive and a solvent such as water. Hereinafter, these will be sequentially described.

(Glycerin derivative (a))
The glycerin derivative (a) used in the cleaning composition of the present invention is obtained by adding propylene oxide and ethylene oxide to glycerin at a ratio of 3 to 150 molar equivalents with respect to glycerin, and then converting alkylene oxide of 4 carbon atoms into glycerin. It is obtained by adding at a ratio of 3 to 15 molar equivalents. That is, the glycerin derivative (a) is obtained by once synthesizing an adduct of PO and EO and then adding a C4 alkylene oxide in a block form.

  The mass ratio (PO / EO) of propylene oxide (PO) and ethylene oxide (EO) is 1/5 to 5/1, and the addition form of propylene oxide and ethylene oxide may be random or block. In order to further reduce the feeling of slimming during rinsing, it is preferable to add in a random state. When the mass ratio of propylene oxide and ethylene oxide (PO / EO) is less than 1/5, a feeling of sliminess is felt during rinsing, and the effect of preventing rough skin is weakened. When it exceeds 5/1, the effect of preventing rough skin is weakened.

  The average added moles of propylene oxide (PO) and ethylene oxide (EO) are each preferably in the range of 1-50. If the average added mole number of PO and EO is less than 1, the foam tends to be poor, a feeling of sliminess is felt during rinsing, and the effect of preventing rough skin is weakened. If the average added mole number exceeds 50, the effect of moisturizing the skin after use may be weakened.

  The average number of added moles of alkylene oxide (BO) having 4 carbon atoms is preferably in the range of 1-5. If the average added mole number of BO is less than 1, the effect of moisturizing the skin after use is weakened. When the average number of added moles exceeds 5, the foamability may be deteriorated.

  Examples of the alkylene oxide having 4 carbon atoms include 1,2-butylene oxide, 2,3-butylene oxide, and tetramethylene oxide (tetrahydrofuran). Among these, 1,2-butylene oxide is preferable from the viewpoint of easy availability and reaction control.

  Usually, when these alkylene oxides are added to glycerin, the addition reaction is performed using an alkali catalyst, a phase transfer catalyst, a Lewis acid catalyst, or the like. In general, it is preferable to use an alkali catalyst such as potassium hydroxide.

(Surfactant (b))
The surfactant (b) used in the cleaning composition of the present invention is at least one surfactant selected from the group consisting of amphoteric surfactants and anionic surfactants having a sulfate group or a sulfonate group. It is an agent.

  Examples of amphoteric surfactants include amide amino acids, alkyliminodicarboxylic acids, alkylbetaines, amidopropylbetaines, and alkylsulfobetaines.

  Examples of the anionic surfactant having a sulfate group or a sulfonate group include alkyl sulfates, polyoxyethylene alkyl ether sulfates, polyoxyethylene amide ether sulfates, acyl isethionate salts, and acylalkyl taurate salts. It is done.

  Among these surfactants, polyoxyethylene alkyl ether sulfates, polyoxyethylene amide ether sulfates, acylalkyl taurine salts, amide amino acids from the standpoint of foaming, rinsing feel and moisturization after use Alkyliminodicarboxylic acid and amidopropyl betaine are preferred.

(Additive)
The additive that can be contained in the cleaning composition of the present invention can be contained in the cleaning composition within a range that does not impair the effects of the present invention. Examples of additives include 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; oleyl oleate, octyl myristate Ester oils such as dodecyl; waxes such as beeswax and carnauba wax; silicone derivatives such as linear and cyclic dimethylpolysiloxane, polyether-modified dimethylpolysiloxane, amino-modified dimethylpolysiloxane; fatty acids of polyoxyethylene alkyl ether and polyethylene glycol Nonionic surfactants such as esters; Cationic surfactants such as alkyltrimethylammonium chloride; Water-soluble polymer compounds such as alginic acid and carboxyvinyl polymer; Pyrrolidone carboxylates, Que Organic or inorganic salts such as acid salts, malates and salt; acids and alkalis as pH adjusters; fungicides; chelating agents; antioxidants; ultraviolet absorbers; vitamins; natural extracts from animals and plants; A fragrance or the like.

(Cleaning composition)
As described above, the cleaning composition of the present invention contains a glycerin derivative (component a) and a surfactant (component b) in specific ratios, and if necessary, an additive, a solvent (for example, water), and the like. .

  The component a is contained in the cleaning composition in an amount of 0.1 to 30% by mass, preferably 0.5 to 20% by mass. When the amount is less than 0.1% by mass, creamy foam quality cannot be obtained, and a feeling of slimness is felt at the time of rinsing, and the effect of moistening the skin after use and the effect of preventing rough skin are weakened. When it exceeds 30 mass%, a creamy foam quality is not obtained and foaming property worsens. A component may be used independently and may use 2 or more types together.

  The component b is contained in the cleaning composition in an amount of 0.5 to 40% by mass, preferably 1 to 30% by mass. When the amount is less than 0.5% by mass, a creamy foam quality cannot be obtained, and foaminess and foamability are deteriorated. When it exceeds 40 mass%, the stability of the cleaning composition may be poor and preparation may be difficult. b component may be used independently and may use 2 or more types together.

  Furthermore, the mass ratio (a / b) of the a component and the b component is 1/40 to 2/1, preferably 1/30 to 3/2. When the ratio is less than 1/40, a slimy feeling is felt during rinsing, and the effect of moisturizing the skin after use and the effect of preventing rough skin are weakened. When it exceeds 2/1, a creamy foam quality cannot be obtained, and foaminess and foamability are deteriorated.

  Next, the present invention will be described in more detail by way of examples.

(Example 1)
As a component, in formula (I), m = 3.3, n = 3.3, and p = 1.7, and the mass ratio of propylene oxide and ethylene oxide (PO / EO) is 1.3 / 1 A certain compound a1 (polyoxybutylene (BO) (5 mol) polyoxyethylene (EO) (10 mol) polyoxypropylene (PO) (10 mol) glycerin ether (random adduct of EO and PO)) is used, A cleaning agent was prepared by blending the component b, the commonly added components shown in Table 1, and purified water in the proportions shown in Table 2.

  About the prepared detergent, (1) foamability, (2) foam quality, (3) foaminess, (4) feel when rinsing, (5) moist feeling after use, and (6) rough skin prevention effect Evaluation was performed by the following method.

(1) Foaming property 20 men and women (20 to 40 years old) are panelists and have their forearms and fingers washed with 3 g of cleaning agent. received.
20 points: When foaming is felt very good.
10 points: When feeling normal foaming.
0 points: When foaming is felt bad.
The average score of 20 people was calculated and evaluated as follows.
○: Average score of 15 or more (cleaning agent with good foaming property)
×: Average score of less than 15 (cleaning agent with poor foaming property)

(2) Foam quality A 5% by mass aqueous solution of a cleaning agent was stirred for 5 seconds with a Mircer tester (Iwatani, IFM-100). The density of the foam after standing for 1 minute was measured and judged according to the following criteria.
20 points: When the foam density is 0.04 or more.
15 points: When the foam density is 0.03 or more and less than 0.04.
10 points: When the foam density is 0.02 or more and less than 0.03.
5 points: When the foam density is 0.01 or more and less than 0.02.
0 point: When the foam density is less than 0.01.
Similarly, the test was performed 5 times, the average score of 5 times was calculated | required, and it evaluated as follows.
○: Average score of 15 or more (cleaning detergent with foam quality)
X: Average score is less than 15 (cleaning agent whose foam quality is not creamy)

(3) Foam gluten The foam gluten index was calculated by the following equation by measuring the foam height immediately after the addition and at 5 minutes at 25 ° C. by the Ross Miles method using a 5% by mass aqueous solution of the cleaning agent.
Foam sticky index = [(bubble height after 5 minutes) / (bubble height immediately after injection)] × 20
Similarly, the test was performed 5 times, the average value of 5 times was calculated | required, and it evaluated as follows.
○: The average value is 15 or more (detergent with good foam)
X: Average value is less than 15 (detergent with poor foaminess)

(4) Feeling at the time of rinsing 20 men and women (20 to 40 years old) are panelists and have their forearms and fingers washed with 3 g of cleaning agent. I was asked to.
20 points: When the user did not feel slimy at the time of rinsing.
10 points: When feeling slightly slimy during rinsing.
0 points: When feeling very slim during rinsing.
The average score of 20 people was calculated and evaluated as follows.
○: Average score of 15 or more (cleaning agent that does not feel slimy when rinsing)
×: Average score of less than 15 (cleaning agent that feels slimy during rinsing)

(5) Moist feeling after use Twenty men and women (20 to 40 years old) are panelists and have their forearms and fingers washed with 3g of detergent, and the moist feeling after washing is determined according to the following criteria. I got it.
20 points: When the skin feels very moist after use.
10 points: When the skin feels moist after use.
0 points: When the skin feels not moist after use.
The average score of 20 people was calculated and evaluated as follows.
○: Average score of 15 points or more (detergent that moisturizes skin after use)
X: Average score of less than 15 (cleaning agent that does not moisturize skin after use)

(6) Rough skin prevention effect 20 men and women (20 to 40 years old) were panelists and their forearms and fingers were washed 20 times every 30 minutes using 3 g of the detergent. About the state of the skin after the end of 20 times, we had you judge on the following reference | standard.
20 points: When feeling that the skin is not rough at all.
10 points: When the skin feels dry and slightly rough.
0 points: When the skin is clearly dry and rough skin is felt.
The average score of 20 people was calculated and evaluated as follows.
○: Average score of 15 or more (cleaning agent to prevent rough skin)
×: Average score of less than 15 (cleaning agent that does not prevent rough skin)

  The results are shown in Table 2.

(Example 2)
As the component a, in formula (I), m = 1.7, n = 6, and p = 1.7, and the mass ratio of propylene oxide and ethylene oxide (PO / EO) is 1 / 2.7 a2 (polyoxybutylene (BO) (5 mol) polyoxyethylene (EO) (18 mol) polyoxypropylene (PO) (5 mol) glycerin ether (random adduct of EO and PO)) b component A cleaning agent was prepared by blending the common additive components and purified water shown in Table 1 in the proportions shown in Table 2. About the prepared cleaning agent, it carried out similarly to Example 1, and evaluated said (1)-(6). The results are shown in Table 2.

(Example 3)
As component a, in formula (I), m = 6, n = 1.7, and p = 1.7, and the mass ratio of propylene oxide and ethylene oxide (PO / EO) is 4.7 / 1 a3 (polyoxybutylene (BO) (5 mol) polyoxyethylene (EO) (5 mol) polyoxypropylene (PO) (18 mol) glycerin ether (random adduct of EO and PO)) b component A cleaning agent was prepared by blending the common additive components and purified water shown in Table 1 in the proportions shown in Table 2. About the prepared cleaning agent, it carried out similarly to Example 1, and evaluated said (1)-(6). The results are shown in Table 2.

(Examples 4 and 5)
In the same manner as in Example 1, the components shown in Table 2 were blended in the proportions shown in Table 2 to prepare a cleaning agent. About the prepared cleaning agent, it carried out similarly to Example 1, and evaluated said (1)-(6). The results are shown in Table 2.

(Comparative Examples 1-5)
In the same manner as in Example 1, the components shown in Table 2 were blended in the proportions shown in Table 2 to prepare a cleaning agent. Here, the compound a ′ contained in the cleaning agent of Comparative Example 2 is m = 0, n = 6.7, and p = 0, and the mass ratio of propylene oxide and ethylene oxide (PO / EO) is 0/1. It is polyoxyethylene (EO) (20 mol) glycerin ether which is a glycerin derivative different from the glycerin derivative used in the cleaning composition of the present invention. About the prepared cleaning agent, it carried out similarly to Example 1, and evaluated said (1)-(6). The results are shown in Table 2.

  The cleaning agent of the present invention has good foaming properties, excellent foaminess with a creamy foam quality, no slimy feeling when rinsing, moisturized skin after use, and rough skin.

  On the other hand, in Comparative Examples 1-5, sufficient performance was not obtained. In Comparative Example 1, since the component a was not included, a creamy foam quality was not obtained, a slimy feeling was felt during rinsing, and the effect of moistening the skin after use and the effect of preventing rough skin were weak. In Comparative Example 2, since a glycerin derivative (compound a ′) different from the a component is included instead of the a component, a creamy foam quality cannot be obtained, and the skin feels moist during rinsing and moisturizes after use. The effect and the rough skin prevention effect were weak. In Comparative Example 3, since the mass ratio (a / b) of the component a and component b was smaller than the range of the present invention, a feeling of slimness was felt during rinsing, and the effect of moistening the skin after use and the effect of preventing rough skin were weak. In Comparative Example 4, since the mass ratio (a / b) of the component a and component b was larger than the range of the present invention, creamy foam quality was not obtained, and foamability and foaminess were poor. In Comparative Example 5, since the content of the component b was less than the range of the present invention, creamy foam quality was not obtained, and foamability and foaminess were poor.

  The cleaning composition of the present invention has a good foaming property, excellent foaminess with a creamy foam quality, has no feeling of slimming during rinsing, moisturizes skin after use, and has an effect of preventing rough skin. It can be used for detergents such as soaps, hand soaps, facial cleansers and hair shampoos.

Claims (1)

A detergent composition comprising a glycerin derivative (a) and a surfactant (b),
The glycerin derivative (a) is a derivative represented by the formula (I):
Gly- [O (PO) _m (EO) _n- (BO) _pH ] ₃ (I)
(Wherein Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, and m and n are average added moles of PO and EO, respectively, oxy a value, the weight ratio of PO and EO (PO / EO) are Ri 1 / 5-5 / 1 der, I addition form a random shape der of PO and EO, BO is the 4 carbon atoms An alkylene group, and p is the average number of moles of BO added and has a value of 1-5)
The surfactant (b) is at least one surfactant selected from the group consisting of amphoteric surfactants and anionic surfactants having a sulfate group or a sulfonate group,
The detergent composition contains 0.1 to 30% by mass of the glycerin derivative (a) and 0.5 to 40% by mass of the surfactant (b), and the glycerin derivative (a) ) And the surfactant (b) in a mass ratio of 1/40 to 2/1.