JP2014024875A - Liquid detergent held in non-gas foamer container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent held in a non-gas foamer container, of which bubbles is fine and creamy and has a good skin touch feeling and no sliminess during washing, providing gentle and good use feeling of skin after washing, and having good discharge property.SOLUTION: A liquid detergent held in a non-gas foamer container contains following ingredients (A), (B), (C) and (D): (A) N-acylamino acid or salts thereof, 2 mass% to 10 mass% as acid, (B) 0.2 mass% to 3 mass% of an ampholytic surface active agent, (C) 5 mass% to 28 mass% of glycerin, and (D) 2 mass% to 8 mass% of polyethylene glycol having a number average molecular weight of 1500 to 20000, and a mass ratio of contents of the ingredient (A) and the ingredient (B) ((B)/(A)) is 0.05 to 1.5, the total of contents of the ingredient (C) and the ingredient (D) is 10 mass% to 30 mass% and a viscosity at 25°C is 1 to 20 mPa s.

Description

  The present invention relates to a liquid detergent contained in a non-gas former container.

  In recent years, cleansing agents used for cleaning skin such as body cleansing agents have been required to have low irritation to skin and good foam quality, feeling of use and the like. N-acyl acidic amino acid salt is an anionic surfactant with low skin irritation, but it is more foamy than other anionic surfactants such as fatty acid salt, alkyl sulfate ester salt or polyoxyethylene alkyl sulfate salt. In addition, there is room for improvement in the feeling of use, and various cleaning agents using such N-acyl acidic amino acid salts have been developed.

  For example, Patent Document 1 discloses a cleaning agent in which 2 to 30% by mass of an acylglutamic acid surfactant and a hydrating exothermic substance such as glycerin are used in combination. The foaming is improved while giving a warm feeling. In Patent Document 2, 3 to 30% by mass of an alkanolamine salt of an acylamino acid is used in combination with 3 to 20% by mass of a specific polyhydric alcohol and a thickener, resulting in excellent foam quality and a good feeling of use. I have a cleaning agent.

  On the other hand, Patent Document 3 discloses a detergent containing 1 to 5% by mass of an N-acylamino acid anionic active agent, 1 to 5% by mass of an amphoteric surfactant, and 30 to 50% by mass of a polyhydric alcohol. Further, Patent Document 4 discloses a cleaning agent using a polyethylene glycol having a specific average molecular weight, with an N-acylamino acid type anionic surfactant and an amphoteric surfactant having a specific quantitative ratio. All have been disclosed, and in addition to improving the foam quality, they are trying to enhance low-temperature stability and the like.

JP 2004-292484 A JP 2004-137247 A JP 2010-59247 A JP 2009-120546 A

  However, the cleaning agent described in Patent Document 1 contains a large amount of glycerin and generates heat when used, resulting in a warm feeling. There are also challenges specific to aerosols that are constrained. Further, the cleaning agent described in Patent Document 2 improves the fineness and elasticity of foam, but there are problems with ease of foaming and the soft feel of the skin after washing. Furthermore, although it is a cleaning agent as described in Patent Document 3, it has a creamy foam quality and can give a moist feeling to the skin. There is still room for improvement, and the foam quality is not sufficient, for example, the foam is not sufficiently slippery and stretchable, the foam dischargeability from the container is reduced, and the fineness of the foam is reduced. There is also a risk of lowering. Further, even in the case of the cleaning agent as in Patent Document 4, due to the quantitative ratio of the N-acylamino acid type anionic surfactant and the amphoteric surfactant, an increase in the feeling of luster when rinsing is performed. It may be difficult to increase the feeling of use.

  As described above, although detergents that provide various performances using N-acyl acidic amino acids have been developed, the detergent used by discharging from a non-gas former container is fine and creamy foam, A foam that slides well on the skin, is easy to stretch, has excellent ejection properties, has little nuckle when rinsing, and has a soft feeling after use, has not yet been realized. .

  Therefore, the problem of the present invention is that the foam is smooth and creamy foam, but the foam does not slip smoothly when rinsed, and the washed-out skin is soft and gives a good feeling of use, and is good It is an object of the present invention to provide a liquid cleaning agent in a non-gas former container that has excellent discharge properties.

  Therefore, the present inventors, from the viewpoint of reducing skin irritation, contain N-acylamino acid, and have excellent foam quality and feeling of use, and also a liquid in a non-gas former container that has good discharge properties. Various studies were conducted to develop a cleaning agent, and N-acylamino acid, amphoteric surfactant, glycerin and polyethylene glycol with a specific number average molecular weight were used in a specific content, total amount, and specific ratio, and the viscosity was specified. It was found that by adjusting the amount to within the range, a high-performance foam can be realized, and a cleansing skin can be given a good feeling of use, and a liquid detergent excellent in dischargeability can be obtained.

That is, the present invention includes the following components (A), (B), (C) and (D):
(A) 2 to 10% by mass as an N-acylamino acid or a salt thereof,
(B) Amphoteric surfactant 0.2-3 mass%,
(C) 5 to 28% by mass of glycerin, and (D) 2 to 8% by mass of polyethylene glycol having a number average molecular weight of 1500 to 20000, and the content of component (A) as an acid and the content of component (B) The mass ratio of the amount ((B) / (A)) is 0.05 to 1.5, the total content of the component (C) and the component (D) is 10 to 30% by mass, and 25 ° C. The liquid detergent in a non-gas former container having a viscosity of 1 to 20 mPa · s is provided.

  According to the present invention, not only the irritation to the skin is reduced, but also the foam of the skin is fine while being fine and creamy, and there is no nulliness at the time of rinsing. The skin of the skin is soft and has a good feeling of use, and is excellent in dischargeability, and can be easily extruded from a non-gas former container.

Hereinafter, the present invention will be described in detail.
The liquid detergent contained in a non-gas former container of the present invention contains 2 to 10% by mass of N-acylamino acid or a salt thereof (A) as an acid. By containing such a component (A) in a specific amount, good foaming and detergency can be realized. The acyl group of the N-acylamino acid or its salt (A) is preferably derived from a fatty acid having a saturated or unsaturated linear or branched chain having 8 to 18 carbon atoms from the viewpoint of foaming or the like. More preferably, those derived from fatty acids having a saturated or unsaturated linear or branched chain having -16 saturated or unsaturated, those derived from fatty acids having a saturated or unsaturated linear or branched chain having 8 to 14 carbon atoms. Further preferred. Examples of such fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid and the like. Among these fatty acids, lauric acid, myristic acid, palmitic acid, and oleic acid are preferable from the viewpoint of foam quality and storage stability, and lauric acid is more preferable. The acyl group of the N-acylamino acid may be derived from a mixed fatty acid of the above fatty acid, for example, coconut oil, palm kernel oil or the like. Especially, what was obtained from coconut oil fatty acid and palm kernel fatty acid as a raw material is preferable, and what was obtained from coconut oil fatty acid as a raw material is more preferable.

  The amino acid part of N-acylamino acid or a salt thereof (A) is glycine, alanine from the viewpoints of good quality foam with good foam slipperiness and good use feeling that the washed-out skin is soft and moist. And an acidic amino acid selected from glutamic acid and aspartic acid are preferred, acidic amino acids are more preferred, and glutamic acid is even more preferred. Further, these amino acid moieties may be any of D-form, L-form, or a mixture of D-form and L-form, and is preferably L-form.

  The N-acylamino acids or salts (A) thereof may be used alone or in combination of two or more. Among them, N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid are preferred from the viewpoint of good foam quality that is easy to stretch and easy to stretch with foam and softness and moist feeling of washed skin. N-palm fatty acid glutamic acid, N-lauroyl aspartic acid, N-cocoyl glycine, N-cocoyl alanine or salts thereof are preferred, N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, N-palm fatty acid glutamic acid, N-lauroyl aspartic acid, N-cocoyl glycine or a salt thereof is more preferable, N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, N-lauroyl aspartic acid or a salt thereof is more preferable, N Cocoyl glutamate, N- lauroyl aspartic acid or more preferably these salts, N- cocoyl glutamate or a salt thereof is even more preferable.

  As the salt of the N-acylamino acid or a salt thereof (A), from the viewpoint of securing foaming and foam quality, alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; aluminum and zinc Other machine salts; ammonium salts; monoethanolamine, diethanolamine, triethanolamine, AMP (2-amino-2-methyl-1-propanol), 2-amino-2-hydroxymethyl-1,3-propanediol, etc. And other organic salts such as basic amino acid salts such as arginine, lysine, histidine and ornithine. As the salt of N-acylamino acid or a salt thereof (A), alkali metal salts, triethanolamine salts, and arginine salts are preferable because of irritation to skin and availability, sodium salts, potassium salts, triethanolamine salts. Arginine salts are more preferred, sodium salts and potassium salts are more preferred, and sodium salts are even more preferred.

Moreover, when mix | blending N-acylamino acid, it neutralizes with a base and uses it. As a base to be neutralized, sodium hydroxide, potassium hydroxide, monoethanolamine, triethanolamine, diethanolamine, ammonia, AMP (2-amino-2-methyl-1-propanol), 2-amino-2-hydroxymethyl -1,3-propanediol, lysine, arginine, histidine, sodium acetate, potassium acetate, etc., sodium salt, potassium salt, arginine salt, triethanol from the viewpoint of foaming and foam quality, skin irritation and availability A base selected from sodium hydroxide, potassium hydroxide, arginine, and triethanolamine is preferable so as to be an amine salt, and one or two bases selected from sodium hydroxide and potassium hydroxide are more preferable. In addition, in order to finally reach the desired value of the pH of the liquid cleaning agent, it is necessary to add a common additive such as sodium hydroxide, potassium hydroxide, triethanolamine, ammonia, lysine, arginine, or histidine as necessary. Various bases may be used.
In any case, various general acids such as hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, citric acid, malic acid, lactic acid, fumaric acid, and succinic acid are added to adjust the pH of the liquid detergent. May be used.

  The content of the N-acylamino acid or its salt (A) as an acid is a liquid containing the non-gas former container of the present invention from the viewpoint of obtaining excellent foaming, high foam quality, and a good feeling after use. In a cleaning agent, they are 2 mass% or more and 10 mass% or less, More preferably, it is 3 mass% or more, Preferably it is 8 mass% or less, More preferably, it is 6 mass% or less. The content of the N-acylamino acid or its salt (A) as an acid is 2 to 10% by mass, more preferably 2 to 8% by mass, and further preferably 3 to 6% by mass.

  The liquid detergent contained in a non-gas former container of the present invention contains 0.2% by mass or more and 3% by mass or less of the amphoteric surfactant (B). This component (B) is contained in a specific amount, and contains a specific amount of glycerin (C), which will be described later, and polyethylene glycol (D) having a specific number average molecular weight. While foaming on the skin is good, good foam with good elongation is obtained, and it is possible to suppress the stickiness during rinsing and to give the skin a soft feel after washing. The amphoteric surfactant (B) is preferably one or more selected from alkylsulfobetaines, alkylhydroxysulfobetaines, alkylcarbobetaines, alkylamidohydroxysulfobetaines, alkylamidoamine-type betaines, and alkylimidazoline-type betaines. . Of these, alkylamidopropylbetaine having an alkyl group having 8 to 14 carbon atoms, and alkylhydroxysulfo from the viewpoint of realizing a good quality foam with good foam elongation and a good feeling of softness after washing. One or more selected from betaines are more preferred, alkylhydroxysulfobetaines are more preferred, and laurylhydroxysulfobetaines are even more preferred.

  The amphoteric surfactant (B) content is creamy and fine foam, but it can produce good quality foam that has good sliding properties and good elongation, and that has reduced slipperiness during rinsing. Therefore, in the liquid detergent contained in the non-gas former container of the present invention, it is 0.2% by mass or more and 3% by mass or less, preferably 0.4% by mass or more, more preferably 1% by mass or more. From the standpoint of further suppressing foaming while improving the foam quality, it is preferably 2.5% by mass or less, more preferably 2.4% by mass or less, and further preferably 2% by mass. It is as follows. The content of the amphoteric surfactant (B) is preferably included in the liquid detergent contained in the non-gas former container of the present invention from the viewpoint of coexistence of foam quality, feeling of good washing, and suppression of luster during rinsing. Is 0.4 to 2.5% by mass, more preferably 1 to 2.4% by mass, and still more preferably 1 to 2% by mass.

  In the liquid detergent contained in the non-gas former container of the present invention, it has excellent foaming and creamy and fine foam quality, but also has high foam quality with good foam sliding and good elongation, and is effective for rinsing From the viewpoint of obtaining a good feeling that the washed-up skin is soft while being controlled, the mass ratio of the content of the component (A) as the acid and the content of the component (B) ((B) / (A)) is 0.05 or more and 1.5 or less, preferably 0.08 or more, more preferably 0.15 or more, still more preferably 0.2 or more, From the viewpoint of further suppressing the stickiness of the wash-up while improving the quality, it is preferably 1.1 or less, more preferably 0.5 or less, still more preferably 0.4 or less, and still more preferably 0.8. 35 or lessFurther, the mass ratio ((B) / (A)) of the content of the component (A) as an acid and the content of the component (B) is 0.05 to 1.5, preferably 0.00. It is 08-1.1, More preferably, it is 0.15-0.5, More preferably, it is 0.2-0.4, More preferably, it is 0.2-0.35.

  The liquid detergent contained in a non-gas former container of the present invention contains 5% by mass or more and 28% by mass or less of glycerin (C). By containing the component (C) in a specific amount together with the specific amount of the component (A), the component (B), and the component (D), a good viscosity is imparted to increase foam retention, and creamy and foam slipping occurs. Well, it achieves a foam with good elongation and can provide a good feeling of use when the skin is soft and moist when washed. Moreover, the discharge property from a non-gas former container can be made favorable.

  The content of glycerin (C) is the non-gas foam of the present invention from the viewpoint of imparting excellent foam quality while enhancing foam retention, and from the viewpoint of ensuring good moist feeling that is soft after washing and good ejection properties. In the liquid detergent contained in the mercer container, it is 5% by mass or more and 28% by mass or less, preferably 10% by mass or more, more preferably 12% by mass or more, and preferably 25% by mass or less, and 23.5%. The mass% or less is more preferable. Moreover, content of glycerin (C) is 5-28 mass% in the liquid detergent with a non-gas former container of this invention, Preferably it is 10-25 mass%, More preferably, it is 12-23. 0.5% by mass.

  The liquid detergent contained in a non-gas former container of the present invention contains 2% by mass or more and 8% by mass or less of polyethylene glycol (D) having a number average molecular weight of 1500 to 20000 by a GPC method using polystyrene as a standard. By containing the polyethylene glycol (D) having such a specific number average molecular weight in the above amount, the foam discharged from the non-gas former container is creamy and finely shaped, but the foam slip is good. A foam with good elongation can be realized. Moreover, the favorable discharge property from a non-gas former container can be maintained. The number average molecular weight of the component (D) is preferably 2000 or more, more preferably 2500 or more, further preferably 3000 or more, and preferably 12000 or less, preferably 10,000 or less, from the viewpoint of combining such good foam quality and dischargeability. More preferably, 9500 or less is further more preferable, and 9000 or less is further more preferable. Moreover, the number average molecular weight of a component (D) becomes like this. Preferably it is 2000-12000, More preferably, it is 2500-10000, More preferably, it is 2500-9500, More preferably, it is 3000-9000.

  The content of the polyethylene glycol (D) is determined by the fact that the foam discharged from the non-gas former container is a good quality foam that is creamy, finely shaped and retains its shape, and has a good foam sliding property and good elongation. From the viewpoint of maintaining a good feeling of lifting and ensuring good dischargeability, the liquid cleaning agent in the non-gas former container of the present invention has a content of 2% by mass to 8% by mass, preferably 2%. 0.5% by mass or more, preferably 5% by mass or less, and more preferably 4.5% by mass or less. Moreover, content of polyethyleneglycol (D) is 2-8 mass% in the liquid detergent with a non-gas former container of this invention, Preferably it is 2-5 mass%, More preferably, it is 2.5. It is -4.5 mass%.

  In the liquid detergent contained in the non-gas former container of the present invention, the foam discharged from the non-gas former container is a good quality foam that is creamy and finely shaped, but prevents the foam from becoming hard, From the viewpoint of imparting excellent foam quality with good elongation, from the viewpoint of obtaining a soft skin feel after washing, and from the viewpoint of ensuring good discharge properties by preventing the pump pressure from becoming too high. The total content of the component (C) and the component (D) is 10% by mass or more and 30% by mass or less, and preferably 12% by mass or more in the liquid detergent contained in the non-gas former container of the present invention. More preferably, it is 15 mass% or more, preferably 27 mass% or less, more preferably 26 mass% or less. Moreover, the sum total of content of a component (C) and a component (D) is 10-30 mass% in the liquid detergent with a non-gas former container of this invention, Preferably it is 12-27 mass%. More preferably, it is 15-26 mass%.

  The liquid detergent contained in the non-gas former container of the present invention preferably further contains glyceryl ether (E) having a linear or branched alkyl group having 8 to 12 carbon atoms. By containing such specific glyceryl ether (E), foaming and foam retention can be further enhanced. The component (E) preferably has a linear or branched alkyl group having 8 to 10 carbon atoms from the viewpoint of enhancing both foaming and foam retention, and is a linear or branched alkyl group having 8 carbon atoms. Those having a group are more preferred, and those having a branched alkyl group are more preferred.

  The content of the glyceryl ether (E) is preferably 0.1% by mass or more and 1.5% by mass or less, more preferably 0.2% by mass from the viewpoint of more effectively increasing foaming and foam retention. It is above, More preferably, it is 0.3 mass% or more, More preferably, it is 1 mass% or less, More preferably, it is 0.7 mass% or less.

  The liquid detergent in a non-gas former container of the present invention is preferably in the form of a liquid in which the above components are dissolved or dispersed using water as a medium. As water, distilled water or ion-exchanged water is preferably used because it does not affect storage stability. Such water content includes purified water such as ion-exchanged water to be blended, as well as water content contained in the blended components, and is capable of discharging from the container, foaming, maintaining good foam quality, and storing. From the viewpoint of stability, it is preferably 40% by mass or more, more preferably 45% by mass or more, further preferably 55% by mass or more, and preferably 85% by mass or less in the liquid detergent of the present invention. More preferably, it is 80 mass% or less, More preferably, it is 75 mass% or less, and it is the remainder of the other component contained as needed besides the said components (A)-(D).

  The pH of the liquid detergent of the present invention is preferably in the range of pH 4.5 to 9.5 from the viewpoint of reducing the foaming of the component (A) and irritation to the skin, and pH 4.5 to 8 When the component (A) is an N-acyl acidic amino acid or a salt thereof, it is preferably in the range of pH 4.5 to 8.0, more preferably pH 5.0 to 7.5, and pH 5 More preferably, it is .5 to 6.5. Such pH can be measured by filling a beaker with 100 ml of a liquid detergent and adjusting the pH to 25 ° C. in a thermostatic bath at 25 ° C., and then immersing the electrode for pH measurement for 3 minutes.

  The liquid cleaning agent of the present invention is a non-ionic surfactant other than the component (A) such as an alkyl sulfate ester or a salt thereof, a polyoxyethylene alkyl ether sulfate ester or a salt thereof, and a fatty acid salt. It can be contained in a range not present. The content of the fatty acid salt in the liquid detergent of the present invention is preferably 0.5% by mass or less, and preferably 0.1% by mass from the viewpoints of good dischargeability, suppression of irritation to the skin, and soft skin feel after washing. % Or less is more preferable, 0.01 mass% or less is more preferable, and it is preferable not to contain except the case where it is inevitably mixed. The content of the anionic surfactant selected from the alkyl sulfate ester or salt thereof and the polyoxyethylene alkyl ether sulfate ester or salt thereof in the liquid detergent of the present invention is From the viewpoint, it is preferably less than the total content of the component (A) of the present invention, preferably 7% by mass or less, more preferably 4% by mass or less, and 1% by mass or less. More preferred. In addition, the liquid detergent of the present invention may further include an anionic surfactant selected from an alkyl sulfate ester or a salt thereof and a polyoxyethylene alkyl ether sulfate ester or a salt thereof in an amount of 0.3% by mass or less. Even if it is 0.1% by mass or less, good foaming and foam quality can be obtained.

  Furthermore, in addition to the above components, the liquid detergent of the present invention is a component other than the above components (C) and components (D) such as 1,3-butylene glycol and propylene glycol, which are used in ordinary liquid detergents. Alcohols and polyols can be contained within a range that does not impair the effects of the present invention. Furthermore, nonionic surfactants such as alkyl polyglycosides, polyoxyethylene alkyl ethers, polyoxyalkylene sorbitan fatty acid esters; coloring agents such as dyes; plant extracts; preservatives; chelating agents; vitamins; glycyrrhetinic acid, glycyrrhizin Acids and their derivatives, anti-inflammatory agents such as allantoin, fragrances, ultraviolet absorbers, antioxidants, and the like can be contained within a range that does not impair the effects of the present invention.

  The liquid detergent of the present invention can contain an anionic, nonionic, or cationic polymer thickener within a range that does not impair the effects of the present invention. The content of the polymer thickener is preferably less than 0.2% by mass and less than 0.1% by mass in the liquid detergent of the present invention from the viewpoint of improving foam quality. More preferably, it is more preferably 0.01% by mass or less, and it is preferable that substantially no polymer thickener is contained. Examples of these polymer thickeners include one or more selected from carrageenan, xanthan gum, gelatin, guar gum, cellulose gum, bentonite, cationized guar gum, and cationized cellulose.

  The viscosity at 25 ° C. of the liquid detergent contained in the non-gas former container of the present invention is 1 from the viewpoint of ensuring good fineness of the discharged foam and the shape retention of the foam, and also from the viewpoint of ensuring good discharge characteristics. It is -20mPa * s, Preferably it is 2-15mPa * s, More preferably, it is 3-13mPa * s, More preferably, it is 5-11mPa * s. The viscosity was measured at 25 ° C. using a Brookfield viscometer (Toki Sangyo, TVB-10). 1. It is obtained by rotating at a rotational speed of 60 r / min and measuring the viscosity 60 seconds after the start of rotation.

  The liquid detergent contained in the non-gas former container of the present invention can be produced according to a conventional method using the above components. Moreover, it is preferable to use this liquid cleaning agent for skin cleaning, and it is more preferable to use it as a hand soap, a facial cleanser, and a body soap. The liquid cleaning composition of the present invention is used for cleaning the skin by a general skin cleaning method. Washing methods include washing by hand, washing using sponges, towels, scrubs, etc. made of chemical fibers such as cotton and nylon. From the viewpoint of reducing skin irritation and the foam performance and use of the product of the present invention From the viewpoint of effectively exerting a feeling, it is preferably used for a method of directly taking and washing by hand. In addition, the liquid detergent in a non-gas former container of the present invention has low irritation and good foam quality and foaming, and gives a soft feel to the washed-out skin. It is suitable for cleaning skin selected from infants and skins with thin stratum corneum, and more suitable for cleaning skin selected from sensitive skin, dry skin, and infant skin. Here, the sensitive skin in the present invention refers to skin in a hypersensitive state in which nerve fibers extend into the epidermis and directly below the stratum corneum, and it is easy to recognize sensory stimulation. Specifically, because the sensory nerves are sensitive, they are easily affected by slight external stimuli (temperature, humidity, dust, allergens, etc.), and the use of cosmetics and external stimuli can cause tingling, tingling, and itching. It means skin that appeals to such sensory stimulation. An infant means an infant and an infant, an infant means a child who is less than 1 year old from 0 days of age, an infant means a child who is 1 year old or older, and in the present invention, an infant who is 5 years old or younger. Is preferred.

The liquid detergent contained in the non-gas former container of the present invention is filled in a non-gas former container of the type that discharges the liquid detergent as foam. The N-acylamino acid of component (A) or a salt thereof has properties that are somewhat lacking in foam creaminess compared to fatty acid soap, but the liquid detergent formed by filling such a non-gas former container is discharged from the container. In addition to being excellent in ejection properties, it has a fine texture, a foam that is creamy and has good foam sliding properties and good elongation, and there is no discomfort in washing up like a fatty acid soap. The skin can be softly used. As the non-gas type foam discharge container, any one can be used as long as it can be mixed with air and discharged as a foam. For example, a pump former container or a body part that is discharged by pushing a pump head is used. Examples include squeeze foam containers that are ejected by pressing, and specific examples include former containers manufactured by Yoshino Kogyo Co., Ltd. and Yamato Steel. Also, for example, a former container described in JP-A-7-315463, JP-A-8-230961, JP-A-2005-193972, and the like can be used. Among these, from the viewpoint of convenience in an environment where a liquid detergent is used, a pump former container that discharges by pushing the pump head is preferable, and from the viewpoint of further improving the foam quality, a porous membrane filter is provided in the discharge channel. The thing provided with is preferable. Such a porous membrane filter is preferably a 100-400 mesh filter, more preferably a 200-400 mesh filter, and even more preferably a 200-305 mesh filter from the viewpoint of obtaining finer and better foam quality. One to three of such porous filters are preferably arranged in the discharge channel, and more preferably two. In addition, the mixing ratio of the liquid detergent and air in the pump former container is such that the density of the foam to be discharged (the mass of the liquid detergent / the volume of air) gives a good foam amount and a foam quality that makes it easy to wash the skin. from preferably 0.03~0.14g / cm ^3, more preferably 0.05~0.11g / cm ^3.

In relation to the embodiment of the present invention described above, the following liquid cleaning agent in a non-gas former container is disclosed.
[1] The following components (A), (B), (C) and (D):
(A) N-acylamino acid or a salt thereof as 2 to 10% by mass,
(B) Amphoteric surfactant 0.2% by mass or more and 3% by mass or less,
(C) glycerin 5 mass% or more and 28 mass% or less, and (D) polyethylene glycol having a number average molecular weight of 1500 to 20000, containing 2 mass% or more and 8 mass% or less, containing components (A) and (B) The mass ratio of the amount ((B) / (A)) is 0.05 or more and 1.5 or less, and the total content of the component (C) and the component (D) is 10% by mass or more and 30% by mass or less. And the liquid detergent with a non-gas former container whose viscosity in 25 degreeC is 1-20 mPa * s.

[2] The content of the component (A) is 2% by mass or more and 10% by mass or less, preferably 3% by mass or more, preferably 8% by mass or less, more preferably 6% by mass or less. A liquid cleaning agent in a non-gas former container according to the above [1]. Non-gas foamer liquid cleaner.
[3] Component (A) preferably has an acyl group derived from a saturated or unsaturated linear or branched fatty acid having 8 to 18 carbon atoms, more preferably saturated having 8 to 16 carbon atoms. Or an acyl group derived from a fatty acid having an unsaturated linear or branched chain, and more preferably a fatty acid having a saturated or unsaturated linear or branched chain having 8 to 12 carbon atoms. The liquid cleaning agent in a non-gas former container according to the above [1] or [2].
[4] Component (A) is composed of N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, N-palm fatty acid glutamic acid, N-lauroyl aspartic acid, N-cocoyl glycine, N-cocoyl alanine and salts thereof. Any one of the above-mentioned [1] to [3], which is one or more selected, preferably one or more selected from N-cocoyl glutamic acid, N-lauroyl aspartic acid and salts thereof. Non-gas foamer liquid cleaner.
[5] The liquid cleaning agent in a non-gas former container according to any one of the above [1] to [4], wherein the component (A) is an N-acyl acidic amino acid or a salt thereof.

[6] The content of the component (B) is 0.2% by mass or more and 3% by mass or less, preferably 0.4% by mass or more, more preferably 1% by mass or more, and preferably 2%. 0.5% by mass or less, more preferably 2.4% by mass or less, and further preferably 2% by mass or less, and the liquid cleaning agent in a non-gas former container according to any one of the above [1] to [5] .
[7] Component (B) is preferably one or more selected from alkylsulfobetaines, alkylhydroxysulfobetaines, alkylcarbobetaines, alkylamidohydroxysulfobetaines, alkylamidoamine type betaines, and alkylimidazoline type betaines. More preferably, it is one or more selected from alkyl sulfobetaines or alkylhydroxysulfobetaines having an alkyl group having 8 to 14 carbon atoms, and more preferably lauryl hydroxysulfobetaine, [1] to [6] ] The liquid cleaning agent in any one of non-gas former containers.
[8] The mass ratio ((B) / (A)) of the content of the component (A) and the component (B) is 0.05 or more and 1.5 or less, preferably 0.08 or more, More preferably, it is 0.15 or more, further preferably 0.2 or more, preferably 1.1 or less, more preferably 0.5 or less, still more preferably 0.4 or less, more More preferably, the liquid cleaning agent in a non-gas former container according to any one of [1] to [7], which is 0.35 or less.

[9] The content of component (C) is 5% by mass or more and 28% by mass or less, preferably 10% by mass or more, more preferably 12% by mass or more, and preferably 25% by mass or less. The liquid cleaning agent in a non-gas former container according to any one of the above [1] to [8], which is more preferably 23.5% by mass or less.
[10] The content of the component (D) is 2% by mass or more and 8% by mass or less, preferably 2.5% by mass or more, preferably 5% by mass or less, more preferably 4.5%. The liquid cleaning agent in a non-gas former container according to any one of the above [1] to [9], which is not more than mass%.
[11] The number average molecular weight of the component (D) is 1500 to 20000, preferably 2000 to 12000, more preferably 2500 to 10000, still more preferably 2500 to 9500, and still more preferably. The liquid cleaning agent in a non-gas former container according to any one of [1] to [10], which is 3000 to 9000.
[12] The total content of component (C) and component (D) is 10% by mass or more and 30% by mass or less, preferably 12% by mass or more, more preferably 15% by mass or more, The liquid cleaning agent in a non-gas former container according to any one of [1] to [11], which is preferably 27% by mass or less, and more preferably 26% by mass or less.

[13] Any of [1] to [12] above, further comprising (E) 0.1% by mass or more and 1.5% by mass or less of glyceryl ether having a linear or branched alkyl group having 8 to 12 carbon atoms. Or 1 liquid cleaner in a non-gas former container.
[14] The content of the component (E) is 0.1% by mass or more and 1.5% by mass or less, preferably 0.2% by mass or more, more preferably 0.3% by mass or more. The liquid cleaning agent in a non-gas former container according to [13], preferably 1% by mass or less, more preferably 0.7% by mass or less.
[15] The water content is 40% by mass or more and 85% by mass or less, preferably 45% by mass or more, more preferably 55% by mass or more, and preferably 80% by mass or less. Is a liquid cleaning agent in a non-gas former container according to any one of the above [1] to [14], which is 75% by mass or less.

[16] The viscosity at 25 ° C. is 1 to 20 mPa · s, preferably 2 to 15 mPa · s, more preferably 3 to 13 mPa · s, and further preferably 5 to 11 mPa · s. The liquid cleaning agent in a non-gas former container according to any one of [1] to [14].
[17] The liquid detergent in a non-gas former container according to any one of the above [1] to [16], which has a pH of 4.5 to 9.5, preferably pH 4.5 to 8.5.
[18] The component (A) is an N-acyl acidic amino acid or a salt thereof, and the pH is 4.5 to 8.0, more preferably 5.0 to 7.5, still more preferably 5. The liquid cleaning agent in a non-gas former container according to any one of the above [1] to [16], which is 5 to 6.5.
[19] Use of the liquid cleaning agent in any one of the above [1] to [18] for cleaning the skin.
[20] Use of the liquid detergent in a non-gas former container according to any one of the above [1] to [18] for producing a skin detergent.
[21] Use of the liquid cleaning agent in a non-gas former container according to any one of the above [1] to [18] for cleaning skin selected from sensitive skin, dry skin, mixed skin, oily skin and infant skin .
[22] Use of the liquid detergent contained in the non-gas former container according to any one of the above [1] to [18] for directly washing the skin with a hand.

  Hereinafter, the present invention will be specifically described based on examples. In addition, unless otherwise indicated in a table | surface, content of each component shows the mass%.

[Examples 1 to 18, Comparative Examples 1 to 10]
According to the composition shown in Tables 1-2, each liquid cleaning agent was manufactured by the conventional method, and each evaluation was performed while measuring a viscosity and pH according to the following method. The results are shown in Tables 1 and 2.
In addition, the following were used for the raw material of each liquid cleaning agent.
-Cocoyl glutamate Na: Trade name "Amisoft CS-11 (F), molecular weight 359", Ajinomoto Co., Inc.-Lauryl hydroxysulfobetaine solution (30%): Trade name "Amphitol 20HD", Kao Corporation-Amidopropyl betaine laurate Liquid (30%): Trade name “Amphithol 20AB”, Kao Corporation • Glycerin (100%), trade name “Dense Glycerin”, Kao Corporation • Polyethylene glycol 10000: Trade name “PEG-10000”, Sanyo Chemical Industries Ltd. Company ・ Polyethylene glycol 6000: Trade name “PEG # 6000”, NOF Corporation ・ Polyethylene glycol 4000: Trade name “PEG-4000S”, Sanyo Chemical Industries, Ltd. ・ Polyethylene glycol 600: Trade name “PEG-600 (-G ”, Sanyo Chemical Co., Ltd., 2-ethylhexyl glyceryl ether: Kao Corporation Propylene glycol: Asahi Glass Co., Ltd.

<Measurement of viscosity>
It measured with the Brookfield type viscometer (Toki Sangyo, TVB-10) at 25 degreeC. The rotor is no. No. 1 was used and rotated at a rotational speed of 60 r / min, and the viscosity 60 seconds after the start of the rotation was determined as the viscosity of the liquid detergent.

<Measurement of pH>
100 ml of the obtained liquid cleaning agent was filled in a beaker and adjusted to 25 ° C. in a thermostatic bath at 25 ° C. The pH measurement electrode was immersed in a sample adjusted to a constant temperature for 3 minutes, and the pH was measured.

<Dischargeability>
Pump former container manufactured by Yoshino Kogyo Co., Ltd. that discharges the obtained liquid detergent by pushing the pump head (the mesh size of the porous membrane filter provided in the discharge channel is 200 mesh and 1 305 mesh) ), 2 pushes were discharged at room temperature of 25 ° C. (discharge amount of 1 push is about 1 g, air amount is about 13 cm ³ ), and the state of bubbles discharged at the 2nd push was evaluated according to the following five criteria.

A: There is no mixing of large bubbles, the size of the bubbles looks uniform, the shape of the bubbles is good, and the texture is fine.
B: Although there are slightly large bubbles mixed in, the size of the bubbles appears to be uniform, the bubbles are well formed, and the texture is fine.
C: Large bubbles are mixed in, and the size of the bubbles is partially non-uniform, but the bubbles are retained.
D: There are many large bubbles mixed in, the size of the bubbles is uneven, the foam retention is low, and the texture of the bubbles is rough.

  As shown in Tables 1 and 2, Comparative Example 3 in which the content of the component (D) is 8% by mass or more, and Comparative Example 4 in which the total content of the component (C) and the component (D) is 30% by mass or more. No. 5 and No. 5 have large bubbles mixed in the discharged bubbles, the bubbles look uneven, the texture of the bubbles is very rough, and there is no shape retention of the bubbles. Evaluation of the liquid detergents A to C with respect to the elongation of the skin, the feel of the skin after washing, and the null feel at the time of washing were evaluated.

《Creaminess of foam, good elongation of foam》
About the liquid cleaning agent whose discharge property is AC, the creaminess of foam and the goodness of foam elongation were evaluated by 1 to 5 points according to the following usage methods by five specialized panelists. Tables 1 and 2 show the average points of evaluation.
The usage method is a pump former container manufactured by Yoshino Kogyo Co., Ltd. that discharges the liquid cleaning agents of Examples and Comparative Examples by pushing the pump head in a room with a room temperature of 25 ° C. and a relative humidity of 40%. The mesh size of the provided porous membrane filter is filled in 200 meshes and 305 meshes, and 2 pushes (1 push discharge amount of about 1 ml, about 13 cm ³ ) are discharged onto a dry palm and discharged. Using the foam, the palm was washed for about 7 seconds while rubbing the palm with both hands. Thereafter, it was thoroughly rinsed with tap water (25 ° C.) and wiped off with a dry towel.

(1) Evaluation standard of foam creamy: The foam feels creamy 5: I think very much 4: I think so 3: Somewhat agree 2: I don't think so much 1: I don't think so

(2) Evaluation Criteria of Good Elongation of Foam: The foam has good skin slip and feels good to foam. >>
5: I think so very much 4: I think so 3: Somewhat agree 2: I don't think so much 1: I don't think so

《Nullness at the time of rinsing, softness of the skin after washing》
Furthermore, five professional panelists evaluated the softness of the skin after rinsing and the softness of the skin with 1 to 5 points for each using the following usage method. Tables 1 and 2 show the average points of evaluation.
The usage method is a pump former container manufactured by Yoshino Kogyo Co., Ltd. that discharges the liquid cleaning agents of Examples and Comparative Examples by pushing the pump head in a room with a room temperature of 25 ° C. and a relative humidity of 40%. The porous membrane filter provided has a mesh size of 200 mesh and 305 mesh, and 2 pushes (1 push discharge amount of about 1 ml, about 13 cm ³ ) are discharged into the palm of the hand. Wash your face with Thereafter, it was thoroughly rinsed with tap water (25 ° C.) and wiped off with a dry towel.

(3) Evaluation criteria for the softness of the skin after washing: The skin after washing feels soft 5: I agree very much 4: I think so 3: I don't think so 2: I don't think so 1: I don't think so

(4) Evaluation criteria for non-nullness at the time of rinsing: The skin does not stick at the time of rinsing. 5: I think so. 4: I think so. 3: I think so. 2: I don't think so. 1: I don't think so.

  As shown in Tables 1 and 2, the liquid detergents of the examples had a high foam quality with fine texture and creamy, and the foam elongation was good, compared with the liquid detergents of the comparative examples. It can be seen that a good usability of washing up can be exerted in a well-balanced manner while suppressing nulling.

Claims (7)

The following components (A), (B), (C) and (D):
(A) N-acylamino acid or a salt thereof as 2 to 10% by mass,
(B) Amphoteric surfactant 0.2% by mass or more and 3% by mass or less,
(C) glycerin 5 mass% or more and 28 mass% or less, and (D) polyethylene glycol having a number average molecular weight of 1500 to 20000, containing 2 mass% or more and 8 mass% or less, containing components (A) and (B) The mass ratio of the amount ((B) / (A)) is 0.05 or more and 1.5 or less, and the total content of the component (C) and the component (D) is 10% by mass or more and 30% by mass or less. And the liquid detergent with a non-gas former container whose viscosity in 25 degreeC is 1-20 mPa * s.   The liquid cleaning agent in a non-gas former container according to claim 1, wherein the component (A) is an N-acyl acidic amino acid or a salt thereof.   The non-gas former container according to claim 1 or 2, wherein the acyl group of component (A) is derived from one or more fatty acids selected from lauric acid, myristic acid, coconut oil fatty acid and palm kernel fatty acid. Liquid cleaning agent.   The liquid cleaning agent in a non-gas former container according to any one of claims 1 to 3, wherein the amino acid part of the component (A) is one or two selected from glutamic acid and aspartic acid.   The component (B) is one or two or more selected from alkylamidopropylbetaines having an alkyl group having 8 to 14 carbon atoms, alkylsulfobetaines, and alkylhydroxysulfobetaines. A liquid cleaning agent in a non-gas former container described in 1.   The component (B) is lauryl hydroxysulfobetaine, the liquid detergent in a non-gas former container according to any one of claims 1 to 5.   The nongas according to any one of claims 1 to 6, further comprising (E) 0.1 to 1.5% by mass of glyceryl ether having a linear or branched alkyl group having 8 to 12 carbon atoms. Liquid cleaner in a former container.