JP5665581B2 - Cleaning composition - Google Patents

Description

  The present invention relates to a cleaning composition.

A detergent product for skin or hair that is used by filling a foam discharge container with a liquid detergent composition and ejecting it as fine foam eliminates the need for foaming and alleviates irritation to the skin, hair and scalp, etc. There are advantages. In such detergent products, it is considered preferable to maintain the composition at a low viscosity in order to obtain uniform foam, and various studies have been made on methods for improving the cleaning power and foam quality. However, in actuality, bubbles at the time of discharge are reduced during the cleaning process and do not have sufficient foaming properties.
Therefore, in the detergent for hand washing, the foam does not disappear to the corners of the fingers, and it has a foam that removes the dirt firmly, and it can be quickly rinsed without slicking, and many times a day. It is required to protect and wash the moisture of the hand skin even when used and repeated.

For example, (a) an anionic surfactant, (b) an amphoteric surfactant and / or a semipolar nonionic surfactant, and (c) a cationic polymer compound and / or an amphoteric polymer compound, A foam discharge container is filled with a liquid detergent composition (Patent Document 1) housed in a container that is discharged in the form of a liquid or an aqueous liquid detergent composition containing polyoxyethylene alkyl ether sulfate and cationized cellulose. A skin cleansing agent (Patent Document 2) is being studied.
However, with these cleaning agents, there is a problem that when cleaning with bubbles discharged from the container, the bubbles are easily removed, and sufficient removal of dirt and a feeling of cleaning cannot be obtained.

  In addition to the cleaning agent filled in the foam discharge container, in the case of cleaning agents for hand-washing, especially when the number of hand-washing is increased, especially in winter, the moisture content of the skin tends to be lower than before washing, causing rough hands. There was a problem that it was easy to become.

JP 2001-172166 A JP 2005-162666 A

  It is an object of the present invention to provide a cleaning composition that is excellent in foaming property during use, has a high cleaning feeling, can be washed away without being slick, and has a mildness sufficient for repeated cleaning. Let it be an issue.

  By combining polyoxyethylene alkyl ether carboxylic acid or a salt thereof and a polyoxyethylene alkyl ether-type nonionic surfactant having specific physical properties with polyoxyethylene alkyl ether sulfate, the present inventors have applied to the skin. It was found that rinsing was improved at the same time as improving mildness. In addition, by using a specific polyglycerin fatty acid ester in combination, the foam discharged from the foam discharge container is further increased by the massage by the cleaning action, the foam is easy to spread, the cleaning feeling can be enhanced, the above problem It has been found that a cleaning composition that solves the above can be obtained.

The present invention includes the following components (A), (B), (C) and (D):
(A) 1-20% by mass of polyoxyethylene alkyl ether sulfate,
(B) 0.5-20% by mass of polyoxyethylene alkyl ether carboxylic acid or salt thereof,
(C) 0.2-16 mass% of water-soluble polyoxyethylene alkyl ether type nonionic surfactant whose melting | fusing point is 30 degreeC or more,
(D) C8-18 fatty acid and polyglycerol average polymerization degree 2-15 polyglycerol fatty acid ester 0.001-5 mass%
The transparent cleaning composition containing this is provided.

  The cleaning composition of the present invention is superior in cleaning feeling by increasing the amount of foam during cleaning, and can be washed away without being slippery and has a mildness sufficient for repeated cleaning. In addition to being excellent in cleanliness and cleanability, it is gentle to the skin, and even if the skin is repeatedly washed, the moisture content of the skin is maintained and rough skin is suppressed. In particular, it has physical properties suitable for filling and using a foam discharge container.

  The polyoxyethylene alkyl ether sulfate of component (A) used in the present invention is not particularly limited as long as it is used in ordinary detergent compositions, but has an alkyl or alkenyl group having 10 to 18 carbon atoms. And further those having an alkyl group having 12 to 14 carbon atoms are preferred. Further, the number of moles of ethylene oxide added is preferably larger than 0 and 5 or less, and more preferably 1 to 4 on average.

  The salt includes alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; ammonium salts; alkanolamine salts such as monoethanolamine, diethanolamine and triethanolamine; bases such as arginine and lysine. Amino acid salts and the like.

  One or more types of component (A) can be used, and 1 to 20% by mass, preferably 2 to 15% by mass, and more preferably 5 to 10% by mass as a salt in the total composition. If it is in this range, the viscosity change of the cleaning composition due to temperature change is small, and the liquid viscosity and foam quality suitable for filling and using in a foam discharge container or the like can be maintained.

The polyoxyethylene alkyl ether carboxylic acid (or its salt) of the component (B) used in the present invention can be used without particular limitation as long as it is used in a normal cleaning composition.
These preferably have an alkyl group or alkenyl group having 10 to 18 carbon atoms, and more preferably have an alkyl group having 12 to 16 carbon atoms. In addition, the number of moles of ethylene oxide added is preferably larger than 0 and 10 or less, and more preferably 1 to 6 on average.

  Examples of the salt include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; ammonium salts; alkanolamine salts such as monoethanolamine, diethanolamine and triethanolamine.

  One or more types of component (B) can be used, and 0.5 to 20% by mass, preferably 0.5 to 10% by mass, and more preferably 1 to 5% by mass as an acid in the total composition. The If it is in this range, it will become a composition which can remove dirt gently with respect to skin.

The component (C) polyoxyethylene alkyl ether type nonionic surfactant used in the present invention has a melting point of 30 ° C. or higher and is water-soluble. That is, it means that a single liquid phase can be maintained at 25 ° C. when dissolved in water by 5 mass% while being in a solid state.
In addition, in this invention, melting | fusing point shows the temperature of the peak of the melting peak measured according to JIS-K7121-1987-9-9.1 (1).
Component (C) has a melting point of 30 ° C. or higher and is selected from solid ones, so that the slightly wet feel obtained from components (A) and (B) can be changed to a refreshing feeling, and rinsing properties can be improved. Can be improved. In addition, the dry skin feel after rinsing emphasizes the smooth feeling and allows the user to recognize cleanliness.

  Specific examples of the component (C) polyoxyethylene alkyl ether type nonionic surfactant include polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, polyoxyethylene palmityl ether, polyoxyethylene isostearyl ether, Examples include polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene hexyl decyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene behenyl ether and the like.

In addition, the polyoxyethylene alkyl ether type nonionic surfactant of component (C) is preferably HLB 10 to 20, and more preferably HLB 13 to 16 because a cleaning composition having more excellent transparency can be obtained.
HLB is an index indicating a hydrophilic-lipophilic balance, and in the present invention, a value calculated using the following equation by Oda / Teramura et al. Is used.

  As the component (C) 3 polyoxyethylene alkyl ether type nonionic surfactant, polyoxyethylene (21) lauryl ether (Emulgen 121-G (HLB14, melting point 38 ° C.), manufactured by Kao Corporation), polyoxyethylene ( 20) 2-hexyldecyl ether (Emulgen 1620G (HLB14, melting point 43 ° C.), manufactured by Kao Corporation), polyoxyethylene (20) octyldodecyl ether (Emulgen 2020G (HLB13, melting point 40 ° C.), manufactured by Kao Corporation) and the like are suitable. Used for.

  As the component (C), one or more kinds can be used. From the viewpoint of the viscosity of the cleaning composition and the feeling at the time of rinsing, 0.2 to 16% by mass, preferably 0.5 to 10% in the entire composition. It is contained by mass%, more preferably 1-5% by mass.

The polyoxyethylene alkyl ether sulfate of component (A) is excellent in detergency and foaming properties, but has high skin permeability, so it may deprive the skin of sebum and reduce the moisture retention of the skin. In the present invention, by combining the component (B) with such a component (A), it is possible to weaken the swelling / penetration of the skin horny layer and obtain a cleaning agent specialized only for cleaning the skin surface.
In addition, by using this in combination with the component (C), sufficient mildness can be exhibited even after repeated washing. In particular, a cleaning agent for hand skin is generally used three to several tens of times a day. However, in the present invention, the water content of the hand skin is reduced even by 10 and 30 consecutive cleanings. Can be minimized.

In the cleaning composition of the present invention, the mass ratio of the components (A), (B) and (C) is (A) / ((B) + (C)) = 3/1 to 1/2, The ratio of 2/1 to 1/1 is preferable because it is superior to the gentleness to the skin.
In addition, since the component (C) is a solid component, depending on conditions, the solid component may precipitate due to drying of the liquid in the discharge container, which may cause discharge failure. For this reason, component (C) is blended at a ratio of ((A) + (B)) / (C) = 2/1 to 10/1 with respect to components (A) and (B) which are liquid components. More preferably, it is more preferably 3/1 to 5/1.

The polyglycerin fatty acid ester of component (D) used in the present invention has the effect of entraining air during washing to increase bubbles, preventing the reduction of bubbles during use, and spreading the bubbles to every corner of the fingers Give sufficient cleaning and cleaning feeling.
Methods used to stabilize foam and improve foam quality include amphoteric surfactants that interact with anionic surfactants to form stable interface films, fatty acids with higher hydrophilic groups, and higher alcohols. There is a method of combining nonionic amphiphiles. However, since they interact with an anionic surfactant to strengthen the foam film, the foam progresses toward densification due to external physical force. As a result, the amount of foam decreases and the growth becomes poor. In addition, since the liquid viscosity is increased, it affects the foam discharge and foam quality. Therefore, in the composition of the present invention, the total amount of amphoteric surfactants and amphiphilic substances such as fatty acids, higher alcohols, glycerin fatty acid esters, and alkyl glyceryl ethers is preferably 0.3% by mass or less. It is preferably not included.

  Polyglycerin fatty acid ester has a large hydrophilic part and a hydroxyl group that immobilizes water, so that it does not form a strong association in combination with an anionic surfactant, while maintaining the flexibility of the foam film, from the gas-liquid interface It is thought to delay drainage and stabilize foam. Therefore, there is an effect of taking in air newly taken in at the time of use, increasing the interface, and temporarily increasing the bubbles to increase the spread to fine parts and the cleaning feeling. Because of these characteristics, the detergent composition of the present invention can maintain the flexibility of the foam film even when the hand is not used, even when the hand is not wetted, and can spread quickly and float dirt. .

The polyglycerol fatty acid ester of component (D) is an ester having 8 to 18 carbon atoms and an average polymerization degree of polyglycerol of 2 to 15. When the number of carbon atoms is less than 8, the compatibility with the anionic surfactant is deteriorated and the foam increasing effect is weakened. When the number of carbon atoms exceeds 18, the melting point increases, and the foam film becomes hard. Moreover, when the average degree of polymerization of polyglycerol exceeds 15, water solubility will become high too much and the effect on a foam film will become weak.
Moreover, the polyglyceryl fatty acid ester of component (D) is preferably HLB 12-18, and more preferably HLB 13-16, since excellent foaming can be obtained while maintaining transparency.

Examples of the polyglycerin fatty acid ester of component (D) include polyglycerin octanoic acid ester, polyglycerin 2-ethylhexanoic acid ester, polyglycerin decanoic acid ester, polyglycerin lauric acid ester, polyglycerin myristic acid ester, polyglycerin palmitic acid. Acid ester, polyglycerol isostearic acid ester, polyglycerin stearic acid ester, polyglycerin oleic acid ester, polyglycerin behenic acid ester and the like can be mentioned.
In particular, a fatty acid monoester having 12 to 18 carbon atoms is preferred. The average degree of polymerization of polyglycerol is preferably 5-10.
Specifically, decaglyceryl monolaurate (Sunsoft M-12J, manufactured by Taiyo Kagaku) and pentaglyceryl monostearate (Sunsoft A-181E, manufactured by Taiyo Chemical) are preferred.

  One or more types of component (D) can be used, and 0.001 to 5% by mass, preferably 0.01 to 2% by mass, and more preferably 0.05 to 1% by mass in the total composition. . If it is in this range, it is possible to prevent a decrease in bubbles during use and to provide sufficient cleaning and a feeling of cleaning by allowing bubbles to reach every corner of the fingers.

  Moreover, since a component (D) is effective in modification | reformation of a foam film, ratio with the component (A)-(C) which forms a bubble becomes important. For (A), (B) and (C), the mass proportion of (D) is (((A) + (B) + (C)) / (D) = 50/1 to 100/1, especially The ratio of 70/1 to 95/1 is preferable because it is excellent in foaming and foam quality and the cleaning feeling becomes higher.

The cleaning composition of the present invention can further contain (E) a cationic polymer, and can further improve foamability and foam retention.
Examples of the cationic polymer include cationized cellulose, cationized starch, cationized fenugreek gum, cationized guar gum, cationized tara gum, cationized locust bean gum, cationized xanthan gum, diallyldialkyl quaternary ammonium salt / acrylamide copolymer. , Vinyl imidazolium trichloride / vinyl pyrrolidone copolymer, hydroxyethyl cellulose / dimethyldiallylammonium chloride copolymer, vinyl pyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer, polyvinyl pyrrolidone / alkylamino acrylate copolymer, polyvinyl pyrrolidone / Alkyl amino acrylate / vinyl caprolactam copolymer, vinyl pyrrolidone / methacrylamide propyl chloride Luammonium copolymer, alkylacrylamide / acrylate / alkylaminoalkylacrylamide / polyethylene glycol methacrylate copolymer, adipic acid / dimethylaminohydroxypropylethylenetriamine copolymer (US Sandos, Cartaletin), JP-A-53-139734 And cationic polymers described in JP-A-60-36407.
Among these, cationized cellulose, cationized fenugreek gum, cationized guar gum, cationized tara gum, cationized locust bean gum, diallyldialkyl quaternary ammonium salt / acrylamide copolymer are preferable.

  As the component (E), one or more kinds can be used, and 0.001 to 0.2% by mass, particularly 0.005 to 0.1% by mass, and further 0.01 to 0.05% by mass in the total composition. It is preferable to contain.

The cleaning composition of the present invention can further contain (F) polyol, and the moisture retention of the skin becomes higher.
Such a polyol is a polyhydric alcohol having two or more hydroxyl groups in the molecule. Specifically, alkylene glycol such as ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol; Examples include polyalkylene glycols such as glycol; sugar alcohols such as glucose, maltose, maltose, sucrose, fructose, xylitol, sorbitol, maltotriose, and threitol; glycerin, polyglycerin, erythritol, and amylolytic reduced alcohol.

  One or more types of component (F) can be used, and it is preferably contained in the whole composition in an amount of 0.1 to 50% by mass, particularly 1 to 20% by mass, and more preferably 3 to 10% by mass.

  The cleaning composition of the present invention further comprises components used in ordinary cleaning compositions, such as oily components, bactericides, anti-inflammatory agents, preservatives, chelating agents, salts, pearlizing agents, scrub agents, perfumes. , Cooling agents, pigments, ultraviolet absorbers, antioxidants, plant extracts and the like.

The cleaning composition of the present invention is an aqueous liquid containing water. Water constitutes the remainder of each component, and it is preferable to contain 70-97 mass% in the whole composition.
The cleaning composition of the present invention can be produced by sequentially mixing each component in water, stirring and dissolving. When mixing a water-soluble polymer, after dispersing the polymer in a polyol such as propylene glycol, the polymer is mixed in water heated to 80 ° C., dissolved, mixed with each component, dissolved, and cooled to room temperature. By doing so, it can be manufactured.

  The cleaning composition of the present invention is transparent. Here, the term “transparent” refers to the transmittance at 550 nm, and the range from 75 to 100 is transparent.

  In addition, the cleaning composition of the present invention preferably has a viscosity of 1 to 1000 mPa · s at 30 ° C., and particularly has a viscosity of 1 to 30 mPa · s when used in a foam discharge container. Is preferred.

The cleaning composition of the present invention can be used as it is as a cleaning composition, or it can be used as a cleaning composition filled in a foam discharge container.
The foam discharge container is not particularly limited as long as the detergent composition can be mixed with air and discharged in a foamed state. For example, a squeeze foamer type that presses and discharges the body of a soft container and a press pump A pump former type that discharges more can be used. Among them, those having a porous film body in the foaming mechanism are preferable, and a single layer of a porous film body such as a sponge, a sintered body, or a net having a thickness of about 0.1 to 2 mm through which the cleaning composition passes. Alternatively, it can be provided in a plurality of layers or in a plurality of locations (for example, Japanese Patent Publication No. 52-16567, Japanese Utility Model Publication 58-174272, Japanese Utility Model Publication 3-7963, Japanese Utility Model Publication No. 6-32346, Japanese Patent Publication No. (Kaihei 7-215352, JP-A-9-118352, etc.). The mesh size of the porous membrane is preferably 50 to 500 mesh, particularly 150 to 400 mesh. Moreover, as a material of such a porous film body, a plastic material such as nylon, polyester, or polyolefin is preferable.

  The cleaning composition of the present invention can be applied as a skin cleaning agent for hand soap, hand wash, facial cleanser, facial cleansing foam, cleansing foam, body soap, body cleaning foam and the like. In particular, it is suitable as a detergent composition for hand washing. Moreover, it can wash | clean and remove stain | pollution | contamination fully by apply | coating a cleaning composition directly to a hand, and massaging it away without wetting a hand with water.

Examples 1-13, Comparative Examples 1-5
A detergent composition having the composition shown in Tables 1 to 3 is prepared by mixing and dissolving each component in water, measuring the transmittance and viscosity, and evaluating the moisture content, foaming and dirt removal of the skin. did. The results are also shown in Tables 1 to 3.

(Evaluation method)
(1) Transmittance:
A transmittance at 550 nm was measured using a spectrophotometer (UV-1800) manufactured by Shimadzu Corporation. If the transmittance of distilled water used as a control is 100 and it is in the range of 75 to 100, it is transparent.

(2) Viscosity:
Using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) at 30 ° C., the viscosity was measured at rotor No. 1, 60 rpm.

(3) Skin moisture (keratin moisture):
The capacitance value was measured by the following method to determine the moisture content of the skin.
(a) Wash the back with water.
(b) After resting in a temperature-controlled room (20 ° C., 40% RH) for 10 minutes, the capacitance before washing is measured by a model of Courage + Khazaka electronic GmbH (made in Germany): Corneometer CM825RC. The measurement was performed at five locations on the entire back and the average value was determined.
(c) Each cleaning composition is filled into a pump former container (160 mL [YF-9413] manufactured by Yoshino Kogyo Co., Ltd.) and pressed twice to take about 2 mL in the palm of the hand. Rinse the left and right hands for 10 seconds from the wrist to the hands, thoroughly massage the detergent, and then rinse with running water for 10 seconds. These are performed 10 times and 30 times. After washing, after about 30 minutes in a temperature-controlled room (20 ° C., 40% RH), the capacitance after washing is measured. The capacitance was measured at five locations on the entire back and the average value was obtained.
As a result, the capacitance value before washing was set to 1, and the capacitance value after washing was shown as a relative ratio.

(4) Foaming:
Each cleaning composition was filled into a pump former container (160 mL [YF-9413] manufactured by Yoshino Kogyo Co., Ltd.). 10 females (special panelists), about each cleaning composition, press the pump twice to discharge the foam on the palm and rub it with the left and right hands for 10 seconds. Evaluated by criteria. The results are shown as average values.
1; Bubbles increase.
2; Foam is maintained.
3; Bubbles decrease.

(5) Dirt removal (use directly on hands and use with wet hands)
A circle with a diameter of 3.5 cm is marked on the back of the hand, and the inside is taken as the test site. 2% by mass of carbon black (dirt) was added to the model comed sebum shown in Table 4 and dispersed. This is dissolved in a 50 ° C. hot water bath, 20 μL of which is uniformly applied to the test site and left for 15 minutes.
Each cleaning composition was filled into a pump former container (160 mL [YF-9413] manufactured by Yoshino Kogyo Co., Ltd.). Three women (special panelists), for each of the cleaning compositions, pressed the pump once to discharge bubbles to the test site. While crushing the entire foam with three fingertips (index finger, middle finger, ring finger) of one hand, they were rubbed together 5 times so as to draw a circle. Thereafter, the foam was washed away with water, and then the fall of carbon black (dirt) was sensorially evaluated according to the following criteria. The results are shown as average values.
1; No dirt remains.
2; Slight dirt remains.
3; Dirt remains.

Claims (12)

The following components (A), (B), (C) and (D):
(A) 1-20% by mass of polyoxyethylene alkyl ether sulfate,
(B) 0.5-20% by mass of polyoxyethylene alkyl ether carboxylic acid or salt thereof,
(C) 0.2-16 mass% of water-soluble polyoxyethylene alkyl ether type nonionic surfactant whose melting | fusing point is 30 degreeC or more,
(D) C8-18 fatty acid and polyglycerol average polymerization degree 2-15 polyglycerol fatty acid ester 0.001-5 mass%
A transparent detergent composition comprising:   The transparent detergent composition according to claim 1, wherein the mass ratio of the components (A), (B) and (C) is (A) / ((B) + (C)) = 3/1 to 1/2. object.   The mass ratio of the components (A), (B), (C) and (D) is ((A) + (B) + (C)) / (D) = 50/1 to 100/1. 3. The transparent cleaning composition according to 1 or 2.   The transparent cleaning composition according to any one of claims 1 to 3, which is used by being filled in a foam discharge container.   The component (C) is blended at a ratio of ((A) + (B)) / (C) = 2/1 to 10/1 with respect to the components (A) and (B) which are liquid components. The transparent cleaning composition of any one of 1-4. Component (A) is 5 to 10% by mass, Component (B) is 0.5 to 2.5% by mass, Component (C) is 1 to 3.75% by mass, and Component (D) is 0.1 to 1% by mass. % Transparent cleaning composition of any one of Claims 1-5 containing. Furthermore, the transparent cleaning composition of any one of Claims 1-6 containing (E) cationic polymer. Further, (F) a transparent detergent composition according to any one of claims 1 to 7 containing a polyol. Component (A), (B) and a mass ratio of (C) is, (A) / ((B ) + (C)) = 2 / a 1 to 1/1 any one of claims 1-8 The transparent detergent composition as described. The mass ratio of the components (A), (B), (C) and (D) is ((A) + (B) + (C)) / (D) = 70/1 to 95/1. any one clear detergent composition according to 1-9. Any one clear detergent composition according is for handwashing claims 1-10. Hands without wetting with water, was applied directly to the hands any one clear detergent composition according to claim 1 to 11, a cleaning method to wash and massage.