JP7558713B2 - Non-gas foam cosmetics - Google Patents

Description

Applicable under Article 30, Paragraph 2 of the Patent Act Date posted on the website: June 5, 2020 Website address: https://www.kracie.co.jp/release/10162215_3833.html

The present invention relates to an all-purpose non-gas foam cosmetic that has a good feel when used (foam elasticity, non-stickiness, moisturizing feeling), is safe, and has the effect of preventing hair from tangling, and can be used on hair and skin.

Many of the cosmetic formulations offered to consumers are designed for specific parts of the human body, such as the hair, body, face, mouth, hands, and feet. This is, of course, because the desired functions for each part are different, and the desired feel and safety are also different.

However, in recent years, all-purpose preparations that take into consideration time saving, ease of use, and environmental conservation purposes have been attracting attention. Examples include shampoos for the whole body, body soaps for the whole body, creams for the whole body, and oils that can be used not only on hair but also on nails and hands and feet. Other examples include cosmetics with multiple functions, such as preparations that can be used on various types of damage other than on parts of the body, and preparations that can be used regardless of age or gender.

Among these, safety is thought to be the biggest issue for formulations that can be used by anyone, including adults and children, and the development of formulations for children and babies is particularly sensitive.

However, there was a problem that cosmetics suitable for hair were not necessarily suitable for skin, and cosmetics suitable for adults were not necessarily suitable for children.

In view of the above circumstances, the present invention aims to provide a non-gas foam cosmetic that can be used by both children and adults, has a good feel when used (foam elasticity, non-stickiness, moisturizing feel), is sufficiently safe, and has the effect of preventing hair tangling. In this invention, children refer to infants and school children aged 12 or younger.

Means of the Invention The present inventors have conducted extensive research in order to achieve the above object and have found that the above problems can be solved by combining the following components in a specific ratio.
A. polyoxyethylene isoalcohol ether B. polypropylene glycol ether of diglycerin C. trimethylglycine D. shea butter which is liquid at room temperature. The non-gas foam cosmetic contains a total blend ratio of component A and component B of less than 10% by weight based on the total cosmetic, and does not contain a cationic surfactant.

That is, the first invention is
A. polyoxyethylene isoalcohol ether B. polypropylene glycol ether of diglycerin C. trimethylglycine D. shea butter which is liquid at room temperature. The non-gas foam cosmetic contains less than 10% by weight of component A and component B relative to the total weight of the cosmetic, and does not contain a cationic surfactant.

The second invention is a non-gas foam cosmetic that further contains a milk-derived component as component E and a glycyrrhizinate salt as component F.

The third invention is a non-gas foam cosmetic according to the first or second invention, in which the milk-derived ingredient is selected from a group of ingredients that are raw or have been processed by a process such as refining, freezing, drying, fermenting, heating, coagulating, defatting, extracting, concentrating, maturing, adding, or hydrolyzing.

The fourth invention is a non-gas foam cosmetic in which the milk-derived ingredient is a plant-derived processed milk substitute selected from milk, lactose, lactic acid, whey, lactoferrin, yogurt liquid, casein, fresh cream, skim milk, skim milk, condensed milk, cheese, milk fat, butter soy milk, almond milk, oat milk, cashew milk, hemp milk, pea milk, flax milk, amazake, rice porridge (rice milk), coconut milk, and cacao milk, and/or an extract, juice, oil, powder, or essence of the plant derived from said milk-derived ingredient.

The cosmetic product of the present invention can be used by both children and adults, has a good feel when used (foam elasticity, non-stickiness, moisturizing feeling), is sufficiently safe, and has the effect of preventing hair tangling.

The non-gas foam cosmetic of the present invention will be described in detail below.

(Component A)
The polyoxyethylene isoalcohol ether, which is component (A) of the present invention, is a nonionic surfactant having an iso branch in the alkyl group. Component (A) is blended for the purpose of forming foam elasticity without stickiness. Although not particularly limited, examples of usable surfactants include isoceteth-25, isoceteth-15, and isosteareth-5.

(Component B)
The polypropylene glycol ether of diglycerin, component (B) of the present invention, is a type of ether polyol obtained by addition polymerization of propylene oxide to diglycerin, and although there are no particular limitations, those with an addition mole number of 9 or 14 are general-purpose and widely used on the market, and can be preferably used. Component (B) is blended for the purposes of providing a moisturizing effect and anti-tangling effect without interfering with foam elasticity.

In the present invention, it is necessary that the combined proportion of components A and B is less than 10% by weight of the entire cosmetic. If the combined proportion is less than 10% by weight, the cosmetic will have excellent foam elasticity, a good feel when in use, and an anti-tangling effect.

(Component C)
Trimethylglycine, which is the component (C) of the present invention, is a type of zwitterionic compound and is also called betaine. In addition to providing a moisturizing feeling to hair and skin, component (C) can be preferably used from the viewpoint of its contribution to the effect of preventing hair tangling and of maintaining foam elasticity. The blending ratio is not particularly limited, but is appropriately determined and is preferably within the effective range. It is preferably 0.01 to 5% by weight, more preferably 0.1 to 2% by weight. Within this range, the above-mentioned effects can be exhibited.

(Component D)
In the present invention, it is preferable to contain shea butter as component (D). Shea butter is a vegetable oil extracted from the seeds of the shea tree. Component (D) has excellent moisturizing and protective effects, and is preferably used in skin care, hair care, and body care products. The shea butter is not particularly limited, but liquid shea butter, which has a different composition and extraction method from the semi-solid paste-like butter that has been widely available on the market for a long time, can be particularly preferably used.

In the present invention, the blending ratio of component (D) is not particularly limited, but is determined appropriately and is preferably within the effective amount range. The blending ratio is preferably 0.0001 to 1% by weight. More preferably, it is 0.001 to 0.5% by weight. If the blending amount is within this range, the cosmetic product will not be sticky, and will be able to provide a moisturizing feeling and anti-tangling effects.

(Component E)
The milk-derived component (E) of the present invention is not particularly limited, but is also called milk juice or milk, and is a secretion produced by the mother body of a mammal among animals.Other than the above, which are not originally derived from animals but are known as substitutes for them, include "white liquids" derived from plants such as soy milk, rice porridge, almond milk, and coconut milk, which can be preferably used.The (E) component is blended for the purpose of providing moisture and preventing tangling.

The milk-derived component of component (E) of the present invention is not particularly limited, but may be selected from a group of components that are raw or have been processed by processes such as refining, freezing, drying, fermenting, heating, coagulating, defatting, extraction, concentration, aging, addition, hydrolysis, etc., and one or more of these may be used in combination. The amount of the component to be blended is not particularly limited as long as the effects of the present invention are exerted, but is preferably 0.001 to 5 mass%, more preferably 0.01 to 1 mass%. Within this range, moisture, a good feel when used, and an anti-tangling effect can be expected.

The milk-derived component of component (E) of the present invention is not particularly limited, but specific examples thereof are preferably selected from milk, lactose, lactic acid, whey, lactoferrin, yogurt liquid, casein, fresh cream, skim milk powder, skim milk, condensed milk, cheese, milk fat, and butter, and also include plant-derived milk substitutes selected from soy milk, almond milk, oat milk, cashew milk, hemp milk, pea milk, flax milk, amazake, rice porridge (rice milk), coconut milk, and cocoa milk, and/or extracts, juices, oils, powders, and essences of plants derived therefrom, and can be used preferably from the viewpoints of usability such as non-stickiness and moisture on the skin and hair, and anti-tangling effect.

(F component)
The glycyrrhizinate salt of component (F) of the present invention generally refers to dipotassium glycyrrhizinate, which is a widely used ingredient well known as a skin conditioning agent and anti-inflammatory agent. Component F is blended for the purpose of reducing stickiness and moisturizing.

In the present invention, the blending ratio of component (F) is not particularly limited as long as the effects of the present invention are exhibited, but it is preferably 0.001 to 0.1 mass%, and more preferably 0.01 to 0.05 mass%. If it is within this range, the above-mentioned effects can be exhibited.

In the present invention, no cationic surfactant is contained. A cationic surfactant is a surfactant that dissociates into ions in its aqueous solution and the atomic group exhibiting surface activity becomes a cation. Cationic surfactants include alkylamine salt types such as monoalkylamine salts, dialkylamine salts, and trialkylamine salts, and quaternary ammonium salt types such as alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, and alkylbenzalkonium chloride, and are widely used mainly for applications such as dispersants, emulsifiers, disinfectants, softeners, hair rinse bases, and antistatic agents. However, they are considered to be mildly toxic, and are a component of concern for irritation. For this reason, cationic surfactants have been widely used in hair cosmetics in the past for the purpose of providing excellent usability and conditioning effects on hair, but on the other hand, in terms of safety, they are undesirable in cosmetics used on the skin. In the present invention, by blending specific components at specific ratios, it is possible to use the product on children and adults, as well as on the skin and hair, without the use of cationic surfactants, without the risk of deterioration in usability.

(Other ingredients)
Furthermore, as long as the effect of the present invention is not impaired, other additional components that are usually used in cosmetics, etc., can be blended as necessary. Examples of these additional components include amino acids, extracts, antibacterial agents, ultraviolet absorbers, antioxidants, vitamins, texture adjusters, oils and fats, vegetable oils, fragrances, oils, esters, etc.

(Non-gas foam cosmetics)
Non-gas foam cosmetics are cosmetics that can be used by foaming the contents with the force of air by passing them through a mesh in the container without using high-pressure gas such as a propellant. They are also sometimes called non-gas type or pump foamer type.

The present invention will be explained in detail below with reference to examples, but the technical scope of the present invention is not limited to these examples. The test methods for the foam elasticity, non-stickiness, moisturizing feeling, safety, and hair tangle suppression effect as the all-purpose feel that can be used on hair and skin described in the examples are shown below. The amounts of the non-gas foam cosmetics shown in the table below are each expressed in weight percent.

(Good foam elasticity)
A panel of five experts pumped the contents of the cosmetic compositions of the Examples and Comparative Examples from the foam pump containers one time, took the contents in their hands, and conducted a sensory test on the foam elasticity at that time, and evaluated them according to the following criteria. The foam pump container had a mesh of 200 on the inside, 255 on the outside, and a discharge volume of 0.7 cc.

Judgment criteria (good foam elasticity, bad foam elasticity)
◎: The foam does not collapse immediately and has elasticity, but 5 people. 〇: The foam does not collapse immediately and has elasticity, but 4 people. △: The foam does not collapse immediately and has elasticity, but 3 people.
×: The foam does not collapse immediately and has elasticity, but 2 or less people

(Non-sticky: Adults)
A panel of five experts applied one push of the non-gas foam shown in the Examples and Comparative Examples to a strand of adult female hair (virgin hair, 10 cm long and weighing 2 g), and conducted a sensory test on the feel when used (non-stickiness) and evaluated it according to the following criteria.

(Non-sticky: Children)
A panel of five girls aged 12 years or younger with hair over 30 cm long was used. One push of the non-gas foam shown in the Examples and Comparative Examples was applied to the end of 10 cm of each girl's hair, and a sensory test was then conducted on the feel when used, with evaluation being based on the following criteria.

Judgment criteria (non-sticky)
◎: 5 people felt no stickiness after application to hair. ◯: 4 people felt no stickiness after application to hair. △: 3 people felt no stickiness after application to hair. ×: 2 people or less felt no stickiness after application to hair.

(Moisturizing feeling)
A panel of five experts applied one push of the non-gas foam shown in the Examples and Comparative Examples to a strand of adult female hair (virgin hair 10 cm long and weighing 2 g), and conducted a sensory test on the feel (moisturizing sensation) at that time, and evaluated it according to the following criteria.

Judgment criteria (Feeling moisturized)
◎: 5 people felt a sense of moisture. ◯: 4 people felt a sense of moisture. △: 3 people felt a sense of moisture. ×: 2 people or less felt a sense of moisture.

(Safety)
Twenty pairs of adults and their children (boys and girls under the age of 12) were asked to apply a fixed amount of the emulsion cosmetics shown in the Examples and Comparative Examples to their hair every day for two consecutive weeks, after which they were asked to complete a questionnaire to assess whether or not there was any irritation.

Judgment criteria (stimulation felt or not felt)
〇: No subjects felt any stimulation. ×: One or more subjects felt any stimulation.

(Prevents hair from tangling)
One push of the non-gas foam shown in the examples and comparative examples was applied to a bundle of hair (virgin hair 10 cm long and weighing 2 g), and the weight applied when combing was measured using an IMADA digital Force gauge DPS-5R.

Judgment criteria: ◎: Pull load is 0.20 kg or less; ○: Pull load is 0.21-0.50 kg
△: Pull load is 0.51 to 0.80 kg
×: Pull load is 0.81 kg or more

As is clear from Table 1, the cosmetics of the present invention in Examples 1 to 6 were all-purpose for use on hair and skin, and were excellent in terms of foam elasticity, non-stickiness, moisturizing feel, safety, and hair tangle prevention effect.

Other formulation examples of the composition of the present invention are given below. The compositions of these formulation examples were also examined in terms of foam elasticity, non-stickiness, moisturizing feel, safety, and hair tangle suppressing effect as an all-purpose feel that can be used on hair and skin. All of the examples were found to have excellent properties and were good.

Formulation example 1 (sleeping hair straightening mousse)
Amount (wt%)
(1) Trimethylglycine 5.0
(2) Polyoxypropylene diglyceryl ether 5.0
(3) Liquid shea butter 0.01
(4) Isoceteth-25 3.0
(5) Polyoxyethylene hydrogenated castor oil 0.3
(6) BG 5.0
(7) DPG 1.0
(8) Glycosyl trehalose 0.5
(9) Lactose 0.01
(10) Whey 0.05
(10) Hydrolyzed casein 0.01
(11) Skim milk 0.001
(12) Coconut oil 0.001
(13) Lactoferrin (milk) 0.01
(14) Saxifraga extract 0.01
(15) Glycyrrhizic acid 2K 0.01
(16) Ethylhexyl methoxycinnamate 0.01
(17) Citric acid 0.01
(18) Sodium citrate 0.03
(19) Fragrance (appropriate amount) (20) Ethanol 13.5
(21) Pure water remaining total 100.0

(Production method) (1) to (21) were uniformly dissolved and mixed, and then filled into a foam pump container to prepare a hair straightening foam.

Formulation example 2 (anti-tangling water foam)
Amount (wt%)
(1) Almond oil 0.001
(2) Isoceteth-25 2.5
(3) Diglycerin 0.5
(4) DPG 3.0
(5) Ceteth-30 0.5
(6) Lactic acid 0.001
(7) PEG-20 glyceryl triisostearate 0.3
(8) Phenoxyethanol 0.1
(9) Liquid shea butter 0.01
(10) Polyoxypropylene diglyceryl ether 3.0
(11) Ethylhexyl methoxycinnamate 0.5
(12) Betaine 3.5
(13) Ethanol 5.0
(14) Glycosyl trehalose 0.01
(15) Glycyrrhizic acid 2K 0.05
(16) Sodium glutamate 0.01
(17) Rose extract 0.01
(18) Lemon Fruit Extract 0.01
(19) Yogurt liquid 0.01
(20) Lactoferrin 0.01
(21) Strawberry Seed Extract 0.01
(22) Sage Leaf Extract 0.01
(23) Tea flower extract 0.01
(24) Almond extract 0.01
(25) Rice extract 0.01
(26) Paraben 0.05
(27) Fragrance - appropriate amount
(28) Pure water remaining total 100.0

(Production method) (1) to (28) were uniformly dissolved and mixed, and the mixture was filled into a foam pump container to prepare an anti-tangle water foam.

Claims (5)

A. Polyoxyethylene isoalcohol ether B. Polypropylene glycol ether of diglycerin C. Trimethylglycine D. A non-gas foam cosmetic containing shea butter which is liquid at room temperature, wherein the total blending ratio of the A component and the B component is less than 10% by weight of the entire cosmetic, the blending ratio of the C component is 0.01% by weight or more and 5% by weight or less of the entire cosmetic, and the blending ratio of the D component is 0.01% by weight or more and 0.5% by weight or less of the entire cosmetic, and the non-gas foam cosmetic does not contain a cationic surfactant. The non-gas foam cosmetic according to claim 1, further comprising the following components:
E. Milk-derived components F. Glycyrrhizinate The non-gas foam cosmetic according to claim 1 or 2, wherein the component E is a milk-derived component and contains one or more components selected from the group of components that are raw or have been processed by any of the following processes: refining, freezing, drying, fermenting, heating, coagulating, degreasing, extracting, concentrating, maturing, adding, and hydrolyzing. The non-gas foam cosmetic according to any one of claims 1 to 3, wherein the component E includes one or more selected from milk, lactose, lactic acid, whey, lactoferrin, yogurt liquid, casein, fresh cream, skim milk powder, skim milk, condensed milk, cheese, milk fat, and butter. The non-gas foam cosmetic according to any one of claims 1 to 4, wherein the component E comprises one or more selected from the group consisting of plant-derived milk substitutes selected from the group consisting of soy milk, almond milk, oat milk, cashew milk, hemp milk, pea milk, flax milk, amazake, rice porridge (rice milk), coconut milk, and cacao milk, and/or extracts, juices, oils, powders, and essences of plants derived therefrom.