JP6375860B2 - Gel-like cleaning material - Google Patents

Description

  The present invention relates to a gel-like cleaning material. More specifically, the gel-like cleaning material is easy to spread and spread on the skin, has good cleaning power, is easy to wash off, gives a clean and moist feeling to the skin after cleaning, and has a gel state even in a high temperature environment. It relates to a gel-like cleaning material that can be retained.

  Conventionally, a solid soap mainly composed of a higher fatty acid alkali salt has been used as a cleaning agent for the skin of the face, body and the like. However, in recent years, due to the diversification of consumer needs, anionic properties other than fatty acid salts have been added in order to characterize the dosage form such as paste, gel, and liquid, and the feeling of foaming, foaming, and washing. There are also an increasing number of detergents combining surfactants and amphoteric surfactants, and detergents based on these surfactants. When these cleaning materials are used, a method is generally employed in which an appropriate amount of the cleaning material is taken into a hand or a foaming net, water is added to the foamed material, and the skin is wrapped with the foam. According to this method, water is added to lower the concentration of the cleaning component, and the foam acts as a cushion between the hand and the foaming net and the skin to reduce friction during cleaning. It can be cleaned without undue burden.

  On the other hand, due to changes in lifestyle, such as the increase in women active in society, movements to shorten the time spent on skin care are spreading. As a cleaning agent that can shorten the face washing action, a cleaning agent that can be applied directly to the skin while omitting the foaming process has been demanded. Among such detergents, gel detergents have a fresh feeling of use, and because of their high viscosity, they have the advantage that they do not easily sag when spread on the skin, and are also commonly used for facial cleansing. Even when using, there are many needs because it has the merit that it is difficult to drip from the mouth of the container.

  The functions required of recent cleaning materials include good detergency, ease of rinsing, clean feeling after washing, and moist feeling, especially when the dosage form is a gel, a high temperature environment of about 40 ° C. It is required to maintain the gel state even underneath. If the gel-like cleaning material cannot maintain a gel state in a high temperature environment of about 40 ° C, the lid should be opened when the tube is filled with the cleaning material when used in places with high temperatures such as summer or bathroom. If the cleaning agent contains water-insoluble ingredients such as scrubbing agent, the scrubbing agent settles or floats and the cleaning agent becomes non-uniform in quality. It may be a problem above.

In order to solve these problems, various gel-like cleaning materials have been proposed.
Patent Document 1 proposes an aqueous detergent composition containing a nonionic surfactant, a polyhydric alcohol, powder, and a water-soluble polymer. Since this composition contains an acrylic acid-based polymer or a polysaccharide-based polymer that easily maintains a gel state even at a high temperature as a gelling agent, it can maintain a gel state even at about 40 ° C., and further has a detergency and a moist feeling. Although it was good, the ease of washing and the clean feeling were not sufficient.

  Patent Document 2 proposes a gel-like skin cleansing material containing water, ι-carrageenan metal salt, and an anionic surfactant. This cleaning material has good detergency, ease of rinsing, and cleanliness, but it does not have sufficient ease of spreading and moisturizing the skin, and cannot maintain a gel state in a high temperature environment of about 40 ° C. was there.

Patent Document 3 contains an anionic surfactant having a carboxylate, a water-soluble natural polymer, a monohydric or higher alcohol having a hydroxyl group, and a 1 wt% aqueous solution. Gel-like and semi-solid detergents having a pH of 0.0 or less have been proposed. This cleaning material can maintain a gel state in a high temperature environment of about 40 ° C. and has a good detergency and a refreshing feeling, but it does not have a moist feeling and is hard to spread to the skin because it becomes a hard gel. There was a thing.
Thus, in order to maintain a gel state in a high temperature environment of about 40 ° C., it must be made into a hard gel, and in that case, the easiness of spreading to the skin is reduced. Therefore, while maintaining a gel state in a high temperature environment of about 40 ° C., it is easy to extend and spread when used on the skin, has a good cleaning power, is easy to wash away, and has a clean and moist feeling. There wasn't.

Japanese Patent Laid-Open No. 9-40525 JP 2012-206946 A JP 2014-148512 A

  The object of the present invention is to provide a gel-like cleaning agent that can easily spread and spread on the skin, has a good cleaning power, is easy to wash off, gives a clean and moist feeling to the skin after washing, and can maintain a gel state even in a high temperature environment. There is to do.

  As a result of intensive studies by the present inventors in order to solve the above-mentioned problems, the above object is achieved by combining ι-carrageenan calcium salt, amphoteric surfactant, glycerin, and a scrub agent having a specific particle diameter at a predetermined content. The present inventors have found that a gel-like cleaning material to be obtained can be obtained, and have completed the present invention.

That is, the gel-like cleaning material of the present invention contains the following components (a) to (d), and the product of the contents (mass%) of the components (a) and (c) is 30 to 65. Is a gel-like cleaning material characterized by
(A) Component: ι-carrageenan calcium salt; 0.6-2% by mass
(B) component: amphoteric surfactant; 0.01-7 mass%
(C) Component: Glycerin; 20 to 70% by mass
(D) Component: Scrub agent having an average particle size of 10 to 500 μm; 0.1 to 5% by mass

  According to the gel-like cleaning material of the present invention, it is easy to extend to the skin, has good cleaning power, is easy to wash away, gives a clean and moist feeling to the washed skin, and can maintain a gel state even in a high temperature environment. An effect is obtained.

Hereinafter, embodiments of the present invention will be described.
The gel-like cleaning material of the present invention contains (a) component: ι-carrageenan calcium salt, (b) component: amphoteric surfactant, (c) component: glycerin, and (d) component: scrub agent.
Hereinafter, each component will be sequentially described.

Component (a): ι-carrageenan calcium salt As the component (a) in the present invention, ι-carrageenan calcium salt is used from the viewpoint of good gelation ability and water solubility. Examples of commercially available iota-carrageenan calcium salts include Genuvisco PJ-JPE manufactured by Sanki Co., Ltd., Soagina MV320 manufactured by Mitsubishi Chemical Foods Co., Ltd., and the like.

  (A) Content of a component is 0.6-2 mass% in a gel-like cleaning material, Preferably it is 0.7-1.5 mass%, Most preferably, it is 0.8-1.2 mass. %. When the content of the component (a) is less than 0.6% by mass, the gel state may not be maintained under a high temperature environment of about 40 ° C. When it exceeds 2% by mass, the spreadability on the skin is easy. May decrease.

Component (b): Amphoteric surfactant The component (b) used in the present invention is an amphoteric surfactant. Examples of amphoteric surfactants used in the present invention include alkylbetaines, alkylamidobetaines, alkylhydroxysulfobetaines, alkylamidohydroxysulfobetaines, alkylcarboxymethylhydroxyethylimidazolinium betaines, alkyliminodiacetates, and alkyliminodipros. Pionate etc. are mentioned, The 1 type (s) or 2 or more types chosen from these can be used.
Of these, alkylcarboxymethylhydroxyethyl imidazolinium betaine having 12 to 18 carbon atoms in the alkyl group and alkylamidopropylbetaine having 12 to 18 carbon atoms in the alkyl group are preferable, such as 2-cocoyl-N-carboxy. Methyl-N-hydroxyethylimidazolinium betaine and coconut oil fatty acid amidopropyl betaine are more preferred.
As commercial products of 2-cocoyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, Nissan Anon (registered trademark) GLM-R-LV manufactured by NOF Corporation, and palm oil fatty acid amidopropyl betaine are commercially available. Examples of the product include NISSAN ANON (registered trademark) BDF-SF manufactured by NOF Corporation.

  (B) Content of a component is 0.01-7 mass% in a gel-like cleaning material, Preferably it is 0.05-3 mass%, Most preferably, it is 0.1-1 mass%. When the content of the component (b) is less than 0.01% by mass, the detergency and clean feeling may be reduced, and when it exceeds 7% by mass, the ease of washing, the clean feeling, and the moist feeling may be reduced. There is.

(C) Component: Glycerin The (c) component is glycerin, and any of purified glycerin or crude glycerin derived from oils and fats and glycerin derivatives can be used.
(C) Content of a component is 20-70 mass% in a gel-like cleaning material, Preferably it is 30-65 mass%, Most preferably, it is 40-60 mass%. When the content of the component (c) is less than 20% by mass, the moist feeling may be lowered, and it may be difficult to maintain a gel state at room temperature and a high temperature environment of about 40 ° C. Moreover, even if it exceeds 70 mass%, the improvement of the effect corresponding to quantity may not be seen.

(D) Component: Scrub Agent (d) The component is a scrub agent. The average particle diameter of the scrub agent is 10 to 500 μm, preferably 20 to 300 μm, particularly preferably 50 to 250 μm, and further preferably 70 to 200 μm. When the average particle size of the component (d) is less than 10 μm, the easiness of spreading, detergency, and a refreshing feeling may be lowered, and when it exceeds 500 μm, the moist feeling may be lowered.
The particle diameter of the scrub agent can be measured by a laser diffraction / scattering particle size distribution analyzer, and the average particle diameter of the scrub agent means the median diameter (d50).

Specific examples of the scrub agent used for component (d) include those used in ordinary cosmetics, such as crystalline cellulose; mannan; lactose; sea salt; hydrocarbons such as polyethylene, polypropylene, and polystyrene. -Based polymer compound; polyamide-based polymer compound such as nylon; peach core powder, apricot core powder, walnut shell powder, almond shell powder, sandwich shell powder, olive core powder, apricot core powder, cherry core powder, etc. Examples include plant leaves, roots, fruits, stems and the like; seawater dried products; resins such as candelilla wax and hydrogenated jojoba wax; and particles obtained by granulating these alone or in combination.
Of these, crystalline cellulose, mannan, lactose, sea salt, polyethylene, peach kernel powder, apricot kernel powder, walnut shell powder, and hydrogenated jojoba wax are preferred, and crystalline cellulose and mannan are particularly preferred.
Examples of commercially available crystalline cellulose having an average particle size of 10 to 500 μm include, for example, Theolas PH-101, Theolas PH-102, Theolas PH-200, Theolas PH-301, Serfia CP-102, manufactured by Asahi Kasei Chemicals Corporation. Selfia CP-203 and the like. Examples of commercial products of mannan having an average particle diameter of 10 to 500 μm include Propol ISLB and White Propol ISLB manufactured by Shimizu Chemical Co., Ltd.

  (D) Content of a component is 0.1-5 mass% in a gel-like cleaning material, Preferably it is 0.3-3 mass%, Most preferably, it is 0.7-2 mass%. When the content of the component (d) is less than 0.1% by mass, the easiness of spreading to the skin may be reduced, and when it exceeds 5% by mass, the moisture feeling may be reduced.

  In the gel-like cleaning material of the present invention, the product of the contents (mass%) of the component (a) and the component (c) is 30 to 65, preferably 35 to 60, particularly preferably 40 to 55. . If this value is less than 30, since the cleaning material becomes a soft gel, it may be difficult to maintain a gel in a high temperature environment of about 40 ° C., and if it exceeds 65, it becomes a hard gel. Elongation and spreadability may decrease.

  It is also possible to mix | blend the additive currently used for the normal cleaning material in the gel-like cleaning material of this invention in the range which does not impair the performance of this invention. For example, oily bases such as higher alcohols, silicone derivatives, squalane, jojoba oil, olive oil, castor oil, lecithin, and fatty acid esters of polyethylene glycol; lower alcohols such as ethanol and isopropyl alcohol; polyoxyethylene alkyl ethers, alkanolamides, etc. Nonionic surfactants; Anionic surfactants such as acylmethyl taurate, alkyl ether sulfates, amide ether sulfates; high water solubility such as carboxyvinyl polymer, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose Molecules; acids and alkalis as pH adjusters; bactericides; chelating agents; antioxidants; UV absorbers; natural extracts derived from animals and plants;

Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples.
The following commercially available products were used for the components (a) to (d) and (a) ′ to (d) ′ used in Examples and Comparative Examples.
(A) Ingredient: ι-carrageenan calcium salt: manufactured by Sanki Co., Ltd., Genuvisco PJ-JPE
(A) ′ component: ι-carrageenan sodium salt: manufactured by Mitsubishi Foods, Soagina MV201
(B) Component: 2-cocoyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine: manufactured by NOF Corporation, Nissan Anon (registered trademark) GLM-R-LV (effective content 27% by mass, Table 1) The content described in is an effective component equivalent).
Coconut oil fatty acid amidopropyl betaine: manufactured by NOF Corporation, Nissan Anon (registered trademark) BDF-SF (effective mass 31% by mass, content shown in Table 1 is converted into effective mass)
(B) 'component: Polyethylene glycol monolaurate (10E.O.): Nikko Chemicals Co., Ltd., NIKKOL MYL-10,
Polyisoethylene stearic acid polyoxyethylene sorbitan (20E.O.): manufactured by NOF Corporation, Nonion (registered trademark) IST-221,
Polyoxyethylene (40E.O.) hydrogenated castor oil: manufactured by NOF Corporation, UNIOX (registered trademark) HC-40
(C) Component: Glycerin: NOF Corporation, RG-S
(C) 'component: Sorbitol: Towa Kasei Kogyo Co., Ltd., Sorbit D-70,
Diethylene glycol monoethyl ether: Gattefoss (e) manufactured by sas, transquitol CG,
Dipropylene glycol: Asahi Glass Co., Ltd., DGP-FC
(D) Component: Crystalline cellulose (average particle size 170 μm): manufactured by Asahi Kasei Chemicals Corporation, Theolas PH-200,
Crystalline cellulose (average particle size 230 μm): Asahi Kasei Chemicals Corporation, SELFIA CP-203,
Mannan (average particle size 280 μm): Propol (registered trademark) ISLB, manufactured by Shimizu Chemical Co., Ltd.
(D) 'component: Titanium oxide (average particle size 0.3 μm): manufactured by Titanium Industry Co., Ltd., ST-710EC

[Examples 1-7 and Comparative Examples 1-7]
Using various components shown in Table 1, a gel-like cleaning material was prepared by the method shown in the following production examples.
<Production example>
After dissolving component (c) (or component (c) ′) in purified water at room temperature, component (a) (or component (a) ′) is added and component (a) (or ( a) Mixing until component ') is homogeneously dissolved. Then, (b) component (or (b) 'component) is uniformly dissolved, (d) component (or (d)' component) is added and dispersed uniformly, and then other components are added. The gel-like cleaning material was prepared by uniformly dissolving and gradually cooling.

  About the obtained gel-like cleaning material, (1) Ease of spreading, (2) Detergency, (3) Ease of washing, (4) Clean feeling, (5) Moisture feeling, (6) Gel at 25 ° C (7) The state of the gel at 40 ° C. was determined by the following evaluation method. In addition, the evaluation of “「 ”and“ ◯ ”was determined as acceptable.

(1) Ease of spreading and spreading Ease of spreading when 10 women (20-40s) are panelists and apply gel-like cleaning material to the face and massage the entire face for 10 seconds. The determination was made according to the following criteria.
2 points: When it feels very easy to extend.
1 point: When it feels easy to extend.
0 points: When it is difficult to extend.

The total score of 10 people was calculated and evaluated as follows.
◎: Total score of 16-20 points ○: Total score of 11-15 points △: Total score of 6-10 points ×: Total score of 0-5 points

(2) Detergency Using 10 women (20-40s) as a panelist, after applying gel-like cleaning material to the face and applying massage to the entire face for 10 seconds, rinse thoroughly with running water, towel The condition after wiping off the water was determined according to the following criteria.
2 points: When the cleaning power is felt good.
1 point: When the detergency feels somewhat good.
0 point: When it feels that there is no cleaning power.

The total score of 10 people was calculated and evaluated as follows.
◎: Total score of 16-20 points ○: Total score of 11-15 points △: Total score of 6-10 points ×: Total score of 0-5 points

(3) Ease of washing With 10 women (20-40s) as a panelist, gel-like cleaning material was applied to the face, massaged over the entire face for 10 seconds, and then rinsed thoroughly with running water. The ease of washing was determined according to the following criteria.
2 points: When it feels very easy to wash away.
1 point: When it feels easy to wash away.
0 point: When it is difficult to wash off.

The total score of 10 people was calculated and evaluated as follows.
◎: Total score of 16-20 points ○: Total score of 11-15 points △: Total score of 6-10 points ×: Total score of 0-5 points

(4) Refreshing feeling With 10 women (20-40s) as a panelist, apply a gel-like cleaning material to the face, massage it into the entire face for 10 seconds, and then rinse thoroughly with running water, towels The condition after wiping off the water was determined according to the following criteria.
2 points: When it feels refreshing.
1 point: When the user feels a little refreshed.
0 points: When the user feels that there is not a clear feeling.

The total score of 10 people was calculated and evaluated as follows.
◎: Total score of 16-20 points ○: Total score of 11-15 points △: Total score of 6-10 points ×: Total score of 0-5 points

(5) Moist feeling 10 female (20-40s) panelists applied gel-like cleaning material to their face, massaged the entire face for 10 seconds, then rinsed thoroughly with running water, towel The condition after wiping off the water was determined according to the following criteria.
2 points: When feeling moist.
1 point: When you feel a little moist.
0 point: When a moist feeling was not felt.

The total score of 10 people was calculated and evaluated as follows.
◎: Total score of 16-20 points ○: Total score of 11-15 points △: Total score of 6-10 points ×: Total score of 0-5 points

(6) Gel state at 25 ° C. A tube with a diameter of 5 mm was filled with 30 g of gel-like cleaning material, the lid was closed, and the tube was allowed to stand in a thermostatic bath at 25 ° C. After 24 hours, the condition when the lid was opened was determined based on the following criteria while taking out from the thermostatic chamber and directing the mouth of the tube downward.
A: When the contents did not sag at all.
○: When the contents are about to drip from the mouth of the tube.
X: When the contents sag immediately.

(7) Gel state at 40 ° C. A tube with a diameter of 5 mm was filled with 30 g of gel-like cleaning material, the lid was closed, and the tube was allowed to stand in a constant temperature bath at 40 ° C. After 24 hours, the condition when the lid was opened was determined based on the following criteria while taking out from the thermostatic chamber and directing the mouth of the tube downward.
A: When the contents did not sag at all.
○: When the contents are about to drip from the mouth of the tube.
X: When the contents sag immediately.

  In the examples and comparative examples, there was no panel that evaluated 0 points for those having a total score of 16 to 20 points.

  The gel-like cleaning materials of Examples 1 to 7 according to the present invention are easy to spread and spread on the skin, have a good detergency, are easy to wash off, give a clean and moist feeling to the skin after washing, and have a room temperature of about 25 ° C. The gel state could be maintained not only in the environment but also in a high temperature environment of about 40 ° C.

On the other hand, in Comparative Examples 1-7, sufficient performance was not obtained.
Since the gel-like cleaning material of Comparative Example 1 contained a sodium salt of ι-carrageenan instead of the component (a), the gel state could not be maintained at 25 ° C., and no other evaluation was performed.
Since the gel-like cleaning material of Comparative Example 2 contained polyoxyethylene (40E.O.) hydrogenated castor oil instead of the component (b), it was easy to wash away and the feeling of cleanliness was low.
The gel-like cleaning material of Comparative Example 3 has a low content of component (c) and a small product of each content (% by mass) of component (a) and component (c). The gel state could not be maintained.

Since the gel-like cleaning material of Comparative Example 4 contained dipropylene glycol instead of the component (c), the gel state could not be maintained at 25 ° C., and no other evaluation was performed.
Since the gel-like cleaning material of Comparative Example 5 did not contain the component (d), it was easy to extend and spread and the feeling of cleanliness was low.
Since the product of each content (mass%) of (a) component and (c) component was small, the gel-like cleaning material of the comparative example 6 was not able to maintain the gel state at 40 degreeC.
The gel-like cleaning material of Comparative Example 7 has a low content of component (a), and instead of component (b), polyethylene glycol monolaurate (10E.O.) and polyoxyethylene sorbitan monoisostearate (20E.O. ), Sorbitol and diethylene glycol monoethyl ether in place of the component (c), and titanium oxide having an average particle size of 0.3 μm in place of the component (d). Well, the refreshing feeling was low.

Claims (1)

A gel-like cleaning material comprising the following components (a) to (d), wherein the product of each content (% by mass) of the components (a) and (c) is 30 to 65.
(A) Component: ι-carrageenan calcium salt; 0.6-2% by mass
(B) component: amphoteric surfactant; 0.01-7 mass%
(C) Component: Glycerin; 20 to 70% by mass
(D) Component: Scrub agent having an average particle size of 10 to 500 μm; 0.1 to 5% by mass