TWI754875B - Composition of resident facial mask - Google Patents

Abstract

The present invention relates to a composition of resident facial mask comprising a filming agent (A), a moisturizing and penetrating agent (B), a rheological modifier (C), a wetting agent (D), and water (E), in which the filming agent (A) comprises Polyurethane-35 (A-1). By controlling an amount of the filming agent (A) and a weight ratio of the filming agent (A) to the moisturizing and penetrating agent (B), a facial mask formed by the composition of resident facial mask can provide transparent appearance, good comfortable feeling, skin adhesion, ease of peeling, moisturizing effect, effective separation of makeup and antiadhesion of pollution during a given period of time.

Description

Composition of leave-on mask

The present invention relates to a composition of a facial mask, in particular to a composition of a resident facial mask that is transparent, easy to peel off, not tight and can effectively isolate makeup and anti-adherent pollutants.

Recently, people have paid more and more attention to the health and beauty of the face. Among them, facial masks have the functions of moisturizing, whitening, and cleansing, and have become widely loved and commonly used facial products. At present, commercially available facial masks include cleaning facial masks, patch facial masks and peel off facial masks, wherein the peel off facial masks are generally mainly composed of polyvinyl alcohol (PVA)/polyvinylpyrrolidone (PVP).

Although the aforementioned masks have many advantages, there are still shortcomings. For example, wash-off masks cannot form a thin and uniform elastic film on the skin, and cannot isolate makeup and anti-adherent pollutants. Furthermore, the patch type mask does not have a transparent appearance, so it is impossible to apply makeup on the mask, and it cannot isolate the makeup and anti-adherent pollutants. In addition, although the PVA/PVP peel-off mask has a transparent appearance, the mask has poor air permeability and a tight feeling, so it is not suitable for long-term use, and it is easy to cause keratinization when peeling off. damage, and inability to resist adhering contaminants.

In view of this, there is an urgent need to develop a composition of a leave-on facial mask to improve the above-mentioned shortcomings of the conventional facial mask.

Therefore, one aspect of the present invention is to provide a composition of a leave-on facial mask, by controlling the amount of the film-forming agent (A) used in the composition and the weight ratio of the film-forming agent (A) to the moisturizing penetrating agent (B) , The mask thus formed provides a transparent appearance, and after a predetermined period of use, it still maintains good comfort, skin fit, ease of peeling and moisturizing effect, and can effectively isolate makeup and anti-adherent pollutants. In addition, the transdermal penetration of the active additive (G) is enhanced by the moisturizing penetrant (B) to enhance the efficacy of the active additive (G).

According to an aspect of the present invention, a composition of a leave-on facial mask is provided. The composition of the leave-on mask comprises a film-forming agent (A), a moisturizing penetrant (B), a rheology modifier (C), a humectant (D) and water (E), wherein the aforementioned film-forming agent (A) comprises Polyurethane-35 (A-1). Based on the total usage amount of the aforementioned composition being 100 weight percent, the usage amount of the aforementioned film-forming agent (A) is greater than 8 weight percent to less than 22 weight percent, and the aforementioned film-forming agent (A) and the aforementioned moisturizing penetrating agent (B) The weight ratio is 2.4 to 12.

According to an embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 wt %, the usage amount of the aforementioned film-forming agent (A) is 10 wt % to 20 wt %.

According to another embodiment of the present invention, the aforementioned moisturizing penetrant (B) comprises polyoxyethylpolyoxypropylpolyoxybutylglycerol.

According to another embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100% by weight, the usage amount of the aforementioned moisturizing penetrant (B) is 0.5% by weight to 5.5% by weight.

According to yet another embodiment of the present invention, the aforementioned rheology modifier (C) comprises at least one of polymers of acrylic acid and/or derivatives thereof.

According to another embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 wt %, the usage amount of the aforementioned rheology modifier (C) is 0.1 wt % to 2 wt %.

According to another embodiment of the present invention, the aforementioned wetting agent (D) is selected from the group consisting of liquid polyols, water-soluble alkoxylated nonionic polymers and any combination thereof.

According to another embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 wt %, the usage amount of the aforementioned wetting agent (D) is 5 wt % to 8 wt %.

According to another embodiment of the present invention, the composition of the aforementioned leave-on facial mask selectively includes functional additives (F) and/or active additives (G).

According to another embodiment of the present invention, the aforementioned functional additive (F) is selected from the group consisting of pH adjuster (F1), surfactant (F2), emollient (F3), antibacterial agent (F4) and ethanol ( At least one of the group consisting of F5), the active additive (G) is selected from at least one of the group consisting of a whitening agent (G1), an antioxidant (G2) and a soothing agent (G3).

To sum up, the composition of the resident facial mask of the present invention is applied and coated on the skin to form a resident facial mask, providing a transparent appearance, and after a period of use After a preset period, it still maintains good comfort, skin fit, ease of peeling and moisturizing effect, and can effectively isolate makeup and anti-adherent pollutants.

In order to have a more complete understanding of the embodiments of the present invention and their advantages, please refer to the following description together with the corresponding drawings. It must be emphasized that the various features are not drawn to scale and are for illustrative purposes only. The relevant diagrams are described as follows:

[FIG. 1A] to [FIG. 1F] are photographs of 8 hours after the mask composition of an embodiment of the present invention and some comparative examples are applied to the face of a subject.

[FIG. 2A] and [FIG. 2C] are photographs of the stratum corneum of the test subject in an example of the present invention and a comparative example before applying the mask composition, respectively.

[FIG. 2B] and [FIG. 2D] are photographs of the subject's stratum corneum according to FIG. 2A and FIG. 2C, respectively, after peeling off the masks formed by the compositions of an example and a comparative example.

[FIG. 3A] is a photo of an embodiment of the present invention and a comparative example of lipstick and foundation coated with breathable tape.

[FIG. 3B] A photograph of a tissue next to the breathable tape of FIG. 3A.

[FIG. 4A] is a photograph of pigskin of an example of the present invention and a comparative example after the nanopowder anti-adhesion test.

[Fig. 4B] is a photograph of pigskin of an example of the present invention and a comparative example after the carbon black adhesion resistance test.

[FIG. 4C] is a photograph of the glass slides of an embodiment of the present invention and a comparative example after the sea sand adhesion resistance test.

[Fig. 5A] is a photo of the subject's arm skin with makeup according to an embodiment of the present invention.

[Fig. 5B] is a photograph of the subject's arm skin according to Fig. 5A after removing the makeup.

[FIG. 6A] is a photograph of the arm skin of some embodiments of the present invention and some comparative examples after treatment with dihydroxyacetone solution.

[Fig. 6B] is a photograph of the subject's arm skin according to Fig. 6A after coating or not coating the mask compositions of some embodiments of the present invention and some comparative examples.

The application of the embodiments of the present invention is discussed in detail below. It should be appreciated, however, that the embodiments provide many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are provided for illustration only, and are not intended to limit the scope of the invention.

The present invention provides a composition of a leave-on type facial mask. By controlling the amount of the film-forming agent (A) used in the composition and the weight ratio of the film-forming agent (A) to the moisturizing penetrating agent (B), the mask thus formed provides Transparent appearance, and after a predetermined period of use, it still maintains good comfort, skin fit, ease of peeling and moisturizing effect, and can effectively isolate makeup and anti-adherent pollutants. Furthermore, due to the good ease of peeling, peeling off the mask will not cause damage to the skin keratin, and after moisturizing the mask with a little water at room temperature, the mask can be peeled off, and the makeup on the mask can be removed at the same time. In addition, by moisturizing penetrant (B) The transdermal penetration of the active additive (G) is enhanced to enhance the efficacy of the active additive (G).

In other words, the composition of the above-mentioned leave-on mask comprises a film-forming agent (A), a moisturizing penetrant (B), a rheology modifier (C), a humectant (D) and water (E). The film-forming agent (A) referred to here in the present invention refers to an aqueous polymer. In some embodiments, the film former (A) includes, but is not limited to, Polyurethane-35 (A-1). Polyurethane-35 (A-1) can be a commercial product, such as water-based polyurethane manufactured by Covestro, which is composed of adipic acid, dicyclohexylmethane diisocyanate, ethylene diisocyanate Ethylenediamine, hexandiol, neopentyl glycol and sodium N-(2-aminoethyl)-3-N-(2-aminoethyl)-3-aminoethanesulfonate -aminoethanesulfonate) and other monomers synthesized copolymers.

According to an embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 weight percent, the usage amount of the aforementioned film-forming agent (A) is greater than 8 weight percent to less than 22 weight percent. When the film-forming agent (A) is used in an amount equal to or less than 8 weight percent, the peelability of the mask thus formed is not good. When the amount of the film-forming agent (A) used is equal to or greater than 22 weight percent, the resulting mask will be too thick, which will easily cause the skin to be tight and uncomfortable. Preferably, the amount of film-forming agent (A) used is 10 to 20 weight percent. More preferably, the amount of film-forming agent (A) used is 12 to 15 weight percent, and the mask formed therefrom can provide better comfort, skin fit, ease of peeling and moisturizing effect.

In the composition of the leave-on facial mask of the present invention, the moisturizing penetrant (B) referred to here in the present invention refers to improving the solubility of the active additive (G) to the skin, thereby helping the active additive (G) to penetrate into the skin , and a moisturizing agent that enhances the efficacy of the active additive (G). In some embodiments, the moisturizing penetrant (B) includes, but is not limited to, polyoxyethylpolyoxypropylpolyoxybutylglycerol. Polyoxyethylpolyoxypropylpolyoxybutylglycerol is a compound obtained by adding polyoxyethyl, polyoxypropyl and polyoxybutyl to three hydroxyl groups of glycerin. In a specific example, the polyoxyethyl polyoxypropyl polyoxybutyl glycerol can be PEG/PPG/polybutylene glycol-8/5/3 glycerol (PEG/PPG/polybutylene glyccl-8/5/3 glycerin) (B).

According to an embodiment of the present invention, the weight ratio of the film-forming agent (A) to the moisturizing penetrant (B) may be 2.4 to 12 based on the total usage of the composition being 100 weight percent. When the weight ratio of the film-forming agent (A) to the moisturizing penetrant (B) is less than 2.4, the mask thus formed cannot be peeled off after being wetted with water, or has a sticky feeling. When the weight ratio of the film-forming agent (A) to the moisturizing penetrating agent (B) is greater than 12, the resulting mask will cause the skin to be tight and make the user feel uncomfortable. Preferably, the weight ratio of the aforementioned film-forming agent (A) to the aforementioned moisturizing penetrating agent (B) is 2.4 to 5.

According to one embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 weight percent, the usage amount of the aforementioned film-forming agent (A) is greater than 8 weight percent to less than 22 weight percent, and the weight ratio of the two is 2.4 At 12:00, the composition can form a transparent mask on the skin, which is elastic, and can provide high skin fit and good air permeability. In addition, the resulting mask maintains good comfort after a predetermined period of use It can improve the feeling, skin fit, peeling ease and moisturizing effect, and can effectively isolate makeup and pollutants.

According to an embodiment of the present invention, based on the total usage amount of the above composition being 100 weight percent, the usage amount of the aforementioned moisturizing penetrant (B) may be 0.5 weight percent to 5.5 weight percent. When the usage amount of the moisturizing penetrant (B) is 0.5 to 5.5 weight percent, the mask thus formed has an excellent moisturizing effect. Preferably, the usage amount of the aforementioned moisturizing penetrant (B) is 1 to 5 weight percent, and more preferably 3 weight percent.

In the composition of the leave-on face mask, the rheology modifier (C) referred to here in the present invention is used to adjust the viscosity of the composition, so that the composition can be evenly coated on the face to form a thin and uniform thickness. The mask provides breathable comfort and good skin fit during use. In some embodiments, rheology modifier (C) comprises at least one of polymers of acrylic acid and/or derivatives thereof. The aforementioned acrylic acid derivatives include, but are not limited to, acrylates, salts of acrylates, alkylacrylic acids having 10 to 30 carbon atoms, or acrylamides. In some embodiments, in addition to acrylic acid and/or its derivatives, the aforementioned polymers may also include a monomer of vinyl isodecanoate. Furthermore, the aforementioned polymer may be a homopolymer or a copolymer, or the aforementioned polymer may be a cross-linked polymer.

In some specific examples, the rheology modifier (C) includes but is not limited to acrylate copolymer (acrylate copolymer), sodium polyacrylate (sodium polyacrylate), acrylic acid/alkyl acrylic acid cross-linked polymer with 10 to 30 carbon atoms (acrylates/C10-30 alkyl acrylate crosspolymer), methyl methacrylate cross-linked polymer (methyl methacrylate crosspolymer) methacrylate crosspolymer), hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, acrylate/vinyl isodecanoate crosspolymer , acrylic acid/vinyl isodecanoate crosspolymer or ammonium acryloyldimethyl taurate/VP copolymer. In other embodiments, the rheology modifier (C) comprises a combination of at least two of the above polymers.

According to an embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 weight percent, the usage amount of the rheology modifier (C) is 0.1 weight percent to 2 weight percent. When the rheology modifier (C) is used in an amount of 0.1 to 2 wt%, the thickness of the mask thus formed is thin and uniform, and can provide breathable comfort and good skin fit. Preferably, the amount of rheology modifier (C) used is 0.4 weight percent.

In the composition of the leave-on facial mask, the humectant (D) referred to here in the present invention refers to a hydrophilic compound that can help water to wet the facial mask when the facial mask needs to be peeled off, so that the facial mask can be easily peeled off. Accordingly, the mask formed by the composition of the leave-on mask of the present invention can be easily peeled off without pulling the skin.

In some embodiments, the humectant (D) is selected from the group consisting of liquid polyols, water-soluble alkoxylated nonionic polymers, and any combination thereof. The liquid polyol may contain a polyol having 2 to 8 carbon atoms. For example, the liquid polyol can be ethylene glycol, propylene glycol, butanediol, pentanediol (pentylene glycol), 1,2-hexanediol, caprylyl glycol, decylene glycol, glycerin, ethylhexyl glycerin, sorbose alcohol, methylbenzyl alcohol and maltitol, etc. Water-soluble alkoxylated nonionic polymers may include, but are not limited to, polyglycerol, dipropylene glycol, ethoxydiglycol, ethylhexylglycerin, and the like. In other embodiments, the humectant (D) may selectively include but not limited to hyaluronic acid, chitosan, trehalose, β-glucan and sugar derivatives and the like.

According to an embodiment of the present invention, based on the total usage amount of the aforementioned composition being 100 weight percent, the usage amount of the wetting agent (D) is 5 weight percent to 8 weight percent. When the usage amount of the wetting agent (D) is 5 to 8 weight percent, the mask formed therefrom can be peeled off after being wetted with water, so as to provide convenience for peeling off after use. Preferably, the amount of wetting agent (D) used is 5 weight percent.

In the composition of the leave-on facial mask of the present invention, the composition of the leave-on facial mask may optionally contain functional additives (F) and/or active additives (G). The functional additive (F) referred to herein in the present invention refers to an additive capable of providing functions such as pH adjustment, emulsifying, dispersing, dissolving, emollient or antibacterial. In some embodiments, the functional additive (F) is selected from the group consisting of pH adjuster (F1), surfactant (F2), emollient (F3), antibacterial agent (F4) and ethanol (F5). at least one of the ethnic groups. Active additives (G) refer to additives that can provide functions such as whitening, anti-oxidation or soothing. In some embodiments, The active additive (G) is at least one selected from the group consisting of a whitening agent (G1), an antioxidant (G2) and a soothing agent (G3).

It is explained here that the composition of the leave-on facial mask of the present invention can enhance the transdermal penetration of the active additive (G) through the moisturizing penetrant (B), so as to enhance the efficacy of the active additive (G).

The composition of the leave-on mask is directly applied to the facial skin, and the pH of the composition can be adjusted by using a pH adjuster (F1) to make it close to the pH of the skin, thereby avoiding irritation to the skin, wherein the pH of the composition is The value can be from 5 to 8, preferably from 6 to 7. The pH adjusting agent (F1) includes, but is not limited to, small molecular organic amines, organic weak acids or inorganic base salts. Organic amines include, but are not limited to, basic amino acids or lower carbon amine alcohols. For example, the pH adjuster (F1) can be arginine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, Triethanolamine (triethanolamine) or citric acid and the like. Inorganic base salts include, but are not limited to, alkali metal salts. For example, alkali metal salts include, but are not limited to, sodium hydroxide or potassium hydroxide, and the like.

In the composition of the leave-on mask of the present invention, the surfactant (F2) can be used as an emulsifier, a cosolvent, a stabilizer, and the like. In some embodiments, the surfactant (F2) comprises an anionic surfactant and a nonionic surfactant.

In the present invention, there is no particular limitation on the surfactant (F2), and any surfactants that can be added to the composition of the facial mask as generally known can be used. For example, anionic surfactants include, but are not limited to, sodium stearoyl glutamate, potassium cetyl phosphate, and phosphate salts. Phosphate salt Specific examples of lecithin can be lecithin, hydroxylated lecithin and hydrogenated lecithin, among which hydrogenated lecithin is hydrogenated lecithin and has moderate skin adhesion and water resistance. Therefore, hydrogenated lecithin can increase the ease of manual peeling of the mask formed by the composition.

For example, nonionic surfactants include, but are not limited to, sorbitan fatty acid esters, sorbitan fatty acid esters, fatty acid esters, alkyl ethers, and the like. Specific examples of fatty acid esters include hydrogenated ethylhexyl olivate (hydrogenated ethylhexyl olivate) and hydrogenated olive oil unsaponifiables (hydrogenated olive oil unsaponifiables). Hydrogenated ethylhexyl oleoate and hydrogenated olive oil unsaponifiables can be used as emulsifiers to help emulsify oily molecules added to the composition.

Among the functional additives (F), emollients (F3) are capable of moisturizing the skin and making the skin soft. There are some emollients (F3) that act as moisture sealers. When the emollient (F3) forms a protective film on the outside of the stratum corneum of the skin, this protective film prevents moisture loss, resulting in a supple and bright skin.

In the present invention, the emollient (F3) is not particularly limited, and any emollients that can be added to the composition of the facial mask as generally known can be used. In some embodiments, the emollient (F3) includes, but is not limited to, fatty acids and their esters, cholesterol (cholesterol) and its esters or amino acid derivatives, hyaluronic acid and its salts, and other compounds. In some embodiments, the emollient (F3) includes, but is not limited to, natural extracts of animals and/or plants. For example, the emollient (F3) can be caprylic/capric triglyceride, jojoba oil, aloe vera extract, sodium hyaluronate, collagen and the like.

In the functional additive (F), the antibacterial agent (F4) prevents or reduces skin acne by killing the bacteria that cause skin acne and/or inflammation, or by inhibiting the growth and/or increase of the aforementioned bacteria. Conditions such as inflammation or redness.

In the present invention, there is no particular limitation on the antibacterial agent (F4), and any antibacterial agent that can be added to the composition of the facial mask as generally known can be used. In some embodiments, the antibacterial agent (F4) includes, but is not limited to, synthetic compounds and/or natural plant extracts.

For example, the aforementioned synthetic compound can be benzalkonium chloride, trichlorosymmetric diphenylurea, triclosan, isopropyl methylphenol, benzyl peroxide, salicyl salicylic acid, 2-bromo-2-nitropropane-1,3-diol, iodopropynyl butylcarbamate, sodium hydroxymethylglycinate, bisimidazolidinyl urea, triclocarban ), chloroxylenol, climbazole, piroctone olamine, zinc pyrithione and sulfur, etc. For example, the aforementioned natural plant extracts can be tea tree oil, eucalyptus oil, peppermint extract, populus tremuloides bark extract, farnesol, and yarrow extract.

In some embodiments, the antimicrobial agent (F4) includes, but is not limited to, propolis or leuconostoc/radish root ferment filtrate and the like. In other embodiments, a plurality of specific examples of the above-mentioned antibacterial agent (F4) can also be used in combination.

Among the active additives (G), the whitening agent (G1) is used for preventing, inhibiting and/or reducing the formation and/or precipitation of skin melanin, thereby achieving a whitening effect. The whitening effect referred to here in the present invention means that after the skin is treated with a 30% dihydroxyacetone solution for 40 minutes, after the keratin is fully browned, the composition of the staying mask is applied, and after 8 hours, it is peeled off to remove The frequency of once a day was carried out for 5 consecutive days, and then the epidermal melanin content and L value of the skin were measured by using a skin black/red pigment probe and a skin tone probe to obtain the individual typological angle (ITA), and calculated Whitening effect as assessed by the change rate of melanin content, L value and ITA.

In the present invention, the whitening agent (G1) is not particularly limited, and any whitening agent that can be added to the composition of the facial mask as generally known can be used. In some embodiments, the whitening agent (G1) includes, but is not limited to, synthetic compounds and/or natural plant extracts. For example, the whitening agent (G1) can be nicotinamide, tranexamic acid, potassium 4-methoxysalicylate and the like.

Among the active additives (G), antioxidants (G2) reduce free radicals, thereby preventing the skin from being damaged by free radicals, thereby producing an anti-aging effect and keeping the skin young.

In the present invention, the antioxidant (G2) is not particularly limited, and any antioxidant that can be added to the composition of the facial mask as generally known can be used. In some embodiments, the antioxidant (G2) includes, but is not limited to, synthetic compounds and/or natural plant extracts.

For example, the aforementioned synthetic compound may be retinol (retinol), dibutyl hydroxy toluene (BHT), butylated hydroxy anisole (BHA), tocopheryl acetate (tocopheryl acetate) , Propyl gallate, tocopherol, t-butyl hydroquinone, ascorbic acid (vitamin C) and dilauryl thiodipropionate, etc. The aforementioned natural plant extracts can be coix seed extract, cherry extract, grape seed extract and the like.

The soothing agent (G3) of the present invention is used to relieve allergic reactions such as redness, swelling or stinging caused by skin irritation. In some embodiments, the soothing agent (G3) includes, but is not limited to, bisabolol and ginger root extract, avena sativa (oat) meal extract, and phaseolus radiatus seed extract Wait.

In addition to the above-mentioned components, in some embodiments, the composition of the leave-on facial mask of the present invention may optionally include but not limited to preservatives, metal chelating agents, pigments or fragrances, and the like.

For example, but not to limit the scope of the present invention, the preservative can be paraben, hydroxychloroaniline, phenoxyethanol, benzyl alcohol, benzoic acid ), sodium benzoate, imidazolidiny urea, 1,3-dimethylol-5,5-dimethylhydantoin , DMDM hydantoin), formaldehyde (formaldehyde), sorbic acid, chlorphenesin (chlorphenesin), methylchloroisothiazolinone (methylchloroisothiazolinone), 2-bromo-2-nitro-1,3-propanedi Alcohol (2-bromo-2-nitropropane-1,3-diol), potassium sorbate (potassium sorbate), sorbic acid (sorbic acid), iodopropynyl butylcarbamate and the like. The metal chelating agent may be ethylenediaminetetraacetic acid (EDTA) or the like. Colors can be synthetic and/or natural, and all legal cosmetic colors can be used in the present invention. The fragrance can be a synthetic fragrance and/or a natural fragrance. Specific examples of the fragrance include rose essence, lavender essence, lily essence, and the like.

By controlling the usage amount of the film-forming agent (A) of the composition in the range of more than 8 weight percent to less than 22 weight percent and the weight ratio of the film-forming agent (A) to the moisturizing penetrant (B) in the range of 2.4 to 12 , The mask thus formed has a transparent appearance. After a preset period of use, after evaluation, it can indeed provide good comfort, skin fit, ease of peeling and moisturizing effect, and can effectively isolate makeup and anti-adhesion. pollutants.

The preset period mentioned above in the present invention refers to a preset period that elapses after the composition of the leave-on mask is applied to the face. In some embodiments, the preset period may be 6 hours to 12 hours. Preferably, the preset period may be 8 hours.

The following examples are used to illustrate the application of the present invention, but it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.

Example 1

In Example 1, 0.3 weight percent of acrylic acid (ester)/vinyl isodecanoate cross-linked polymer (C-1), 0.1 weight percent of acrylic acid/alkyl acrylic acid cross-linked polymer with 10 to 30 carbon atoms (C-2), 5 weight Percent of dipropylene glycol (D-1), 0.02 weight percent of citric acid (F1-2) and 70.3 weight percent of water (E) are mixed, stirred to form a uniformly dispersed aqueous solution, and then 3 weight percent of PEG /PPG/Polybutylene glycol-8/5/3 glycerin (B) (trade name: S-753, manufactured by NOF Corporation (WILBRIDE)), 2 wt% nicotinamide (G1-1), 2 weight percent tranexamic acid (G1-2), 1 weight percent bisabolol and ginger root extracts (G3-1 and G3-2), 0.18 weight percent arginine (F1-1) and 1 weight percent The percentage of hydrogenated ethylhexyl oleic acid/hydrogenated olive oil unsaponifiable matter (F2-1) was added to the aforesaid aqueous solution under stirring and mixed uniformly. On the other hand, 5 weight percent of ethanol (F5) and 0.1 weight percent of isopropyl methylphenol (F4) were mixed and stirred to form a transparent antibacterial solution, and then slowly added to the stirring aqueous phase solution. After uniform mixing, 10 weight percent of polyurethane-35 (A-1) (trade name: C1004, manufactured by Covestro) was added, and the mixture was continuously stirred to a homogeneous phase to obtain the mask composition of Example 1.

Example 2 to Example 7 and Comparative Example 1 to Comparative Example 5

Examples 2 to 7 and Comparative Examples 1 to 5 were prepared in the same manner as in Example 1. The difference is that the usage amount of the polyurethane-35 (A-1) of Examples 2 to 4 and Comparative Examples 1 to 2 is different from that of Example 1. The usage amount of polyurethane-35 (A-1) and the usage amount of PEG/PPG/polybutylene glycol-8/5/3 glycerol (B) of Example 5 to Example 6 and Comparative Example 4 and Example 1 different. The usage amount of polyurethane-35 (A-1) in Example 7 is different from that in Example 1, and hydroxyethyl acrylate/sodium acryl dimethyl taurate copolymer (C-4) is used to replace acrylic acid (ester) ) / vinyl isodecanoate cross-linked polymer (C-1) and acrylic acid / carbon number 10 to 30 Alkylacrylic acid cross-linked polymer (C-2). The usage amount of polyurethane-35 (A-1), the usage amount of PEG/PPG/polybutylene glycol-8/5/3 glycerin (B) and the usage amount of dipropylene glycol (D-1) of Comparative Example 3 are the same as Example 1 is different. In Comparative Example 5, polyvinyl alcohol (A-2) and polyvinylpyrrolidone (A-3) were used instead of polyurethane-35 (A-1). Table 1 shows the specific conditions of Examples 2 to 7 and Comparative Examples 1 to 5.

Example 8

Example 8 was formulated in the same manner as Example 1. The difference is that the usage amount of polyurethane-35 (A-1) in Example 8 is different from that in Example 1, and glycerol (D-2), caprylic/capric triglyceride (F3-1), methacrylic acid are added. Methyl ester cross-linked polymer (C-3), retinol (G2-1), hydrogenated lecithin (F2-2), cholesterol (F3-2), butylated hydroxytoluene (G2-2), tocopheryl acetate Ester (G2-4), mung bean seed extract (G3-3), butylated hydroxyanisole (G2-3) and oat meal extract (G3-4). The specific conditions of Example 8 are shown in Table 1.

Example 9 to Example 10 and Comparative Example 6 to Comparative Example 7

Examples 9 to 10 and Comparative Examples 6 to 7 were prepared in the same manner as in Example 8. The difference is that the usage amount of PEG/PPG/polybutylene glycol-8/5/3 glycerol (B) in Examples 9 to 10 and Comparative Example 6 is different from that in Example 8. The usage amount of PEG/PPG/polybutylene glycol-8/5/3 glycerol (B) and the usage amount of dipropylene glycol (D-1) in Comparative Example 7 were different from those in Example 8. Table 1 shows the specific conditions of Examples 9 to 10 and Comparative Examples 6 to 7.

Comparative Example 8

Comparative Example 8 uses a product called Hadalabo PHOTO Extremely Run Perfect High Moisturizing Multi-Effect Mask (or called Hadalab Moisturizing Gel Mask, which is manufactured by Mentholatum, https://jp.rohto.com/hadalabo/rich-gokujun-perfect -mask/), and it is a patch mask.

Table 1

Note: The sum of the usage amounts of all the asterisk (*) marks in a single example is 5 weight percent. The sum of the usage levels of all hash marks (#) in a single example is 1 weight percent.

A-1 Polyurethane-35 (polyurethane-35)

A-2 Polyvinyl alcohol (PVA)

A-3 Polyvinylpyrrolidone (polyvinylpyrrolidone, PVP)

B PEG/PPG/polybutylene glycol-8/5/3 glycerin (PEG/PPG/polybutylene glycol-8/5/3 glycerin)

C-1 Acrylates/vinyl isodecanoate crosspolymer (acrylates/vinyl isodecanoate crosspolymer)

C-2 Acrylic acid/C10-30 alkyl acrylate crosspolymer (acrylate/C10-30 alkyl acrylate crosspolymer)

C-3 methyl methacrylate crosspolymer (methyl methacrylate crosspolymer)

C-4 hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer

D-1 Dipropylene glycol

D-2 Glycerin (glycerin)

E water

F1-1 Arginine (arginine)

F1-2 Citric acid

F2-1 Hydrogenated ethylhexyl oleoate/hydrogenated olive oil unsaponifiables (hydrogenated ethylhexyl olivate/hydrogenated olive oil unsaponifiables)

F2-2 Hydrogenated lecithin

F3-1 Caprylic/capric triglyceride

F3-2 cholesterol (cholesterol)

F4 isopropyl methylphenol (isopropyl methylphenol)

F5 Ethanol (ethanol)

G1-1 Nicotinamide (niacinamide)

G1-2 tranexamic acid

G2-1 Retinol

G2-2 Butylated hydroxytoluene (dibutyl hydroxy toluene, BHT)

G2-3 Butylated hydroxyanisole (BHA)

G2-4 Tocopheryl acetate

G3-1 Bisabolol

G3-2 Ginger root extract (zingiber officinale(ginger) root extract)

G3-3 Mung bean seed extract (phaseolus radiatus seed extract)

G3-4 oat meal extract (avena sativa(oat)meal extract)

1. Comfort

The comfort referred to in the present invention is that the facial mask compositions of Examples 1 to 7 and Comparative Examples 1 to 5 are applied to the face of a subject, wherein each of the Examples and Comparative Examples has 50 subjects. perform a comfort test. After eight hours, the evaluation was performed according to the subjective feeling of the facial skin of the above-mentioned subjects, and the specific evaluation criteria were as follows. The results are shown in Table 2.

5:00: Comfort is very high

4 points: high comfort

3 points: normal

2 points: low comfort

1 point: very low comfort

2. Skin fit

The skin-sticking degree referred to in the present invention refers to applying the facial mask compositions of Examples 1 to 7 and Comparative Examples 1 to 5 on the face of a subject, wherein each of the Examples and Comparative Examples has 50 subjects. The subjects performed a skin-stick test. After eight hours, the degree of adhesion of the mask to the skin was observed for evaluation, and the specific evaluation criteria were as follows. The results are shown in Table 2 and FIGS. 1A to 1F .

5 points: The adhesion is very high, and the edge of the mask does not have any warping

4 points: high adhesion, the edge of the mask is slightly warped

3 points: The adhesion is normal, and the mask part peels off

2 points: The adhesion is low, and the mask peels off obviously

1 point: Adhesion is very low, the mask peels off completely

3. Ease of stripping

The ease of peeling referred to in the present invention is a test conducted by applying the mask compositions of Examples 1 to 7 and Comparative Examples 1 to 5 on the face of a subject, wherein Examples and Comparative Examples There were 50 subjects each. After 8 hours, after moistening with water, peel off the mask with bare hands, and evaluate according to the ease of peeling off the mask, the completeness of peeling off the mask, and whether there is any residue after peeling off the mask, and the specific evaluation criteria are as follows. The results are as follows shown in Table 2.

5 points: When peeling off, the mask does not break, and the whole piece can be peeled off at one time

4 points: When peeling off, the mask is slightly broken, but it can still be peeled off in one piece

3 points: When peeling off, the mask breaks and needs to be peeled off multiple times

2 points: When peeling off, the mask breaks and leaves debris, which needs to be peeled off multiple times

1 point: When peeled off, the mask breaks into crumbs and remains on the face without Tear off in sheet form

4. Moisturizing effect

The moisturizing effect referred to in the present invention is tested with 12 subjects, and a double-blind test method is adopted. After the subjects washed their faces with water, they were allowed to acclimate the skin in a room with controlled temperature (24°C to 26°C) and humidity (50% to 60%) for 30 minutes, and then used an epidermal moisture meter (Corneometer CM825 , Courage-Khazaka electronic GmbH, Germany) to measure the water content of the stratum corneum on both sides of the cheeks of the subjects, whose unit is arbitrary capacitance units (arbitrary capacitance units, ACU). Next, the composition of Example 2 was applied to the face of the subject to form a mask with a thickness of about 0.2 mm. After eight hours, peel off the mask after moisturizing with water. with the aforementioned After the skin was acclimated by the acclimation method, the water content of the stratum corneum on both sides of the cheeks of the subjects was measured again. Then, the percentage increase (%) of the moisture content of the stratum corneum before applying the above-mentioned composition was calculated, and the moisturizing effect was expressed as the percentage increase of the moisture content, and then the same method was used to measure Example 5, Example 6, Table 2 shows the results of the moisturizing effects of the compositions of Comparative Example 3 and Comparative Example 4.

Table 2

Please refer to Table 2 and FIGS. 1A to 1F , wherein Table 2 is the results of the aforementioned evaluation tests of comfort, skin fit, ease of peeling and moisturizing effect, and FIGS. 1A to 1B , 1C to 1D and FIGS. 1E to 1F are photographs of 8 hours after the facial mask compositions of Example 2, Comparative Example 3 and Comparative Example 5 of the present invention are applied to the face of a subject, respectively.

Table 2 shows: compared with the composition of 8 weight percent polyurethane-35 (A-1) of Comparative Example 1, the mask formed by the composition of 12 weight percent polyurethane-35 (A-1) of Example 2 has a higher Excellent peeling ease. Compared with the composition of 22% by weight of polyurethane-35 (A-1) in Comparative Example 2, the mask formed by the composition of 12% by weight of polyurethane-35 (A-1) in Example 2 has better comfort . Compared with the compositions of Comparative Examples 3 and 4 without the addition of PEG/PPG/polybutylene glycol-8/5/3 glycerol (B), the addition of PEG/ The mask formed by the composition of PPG/polybutylene glycol-8/5/3 glycerin (B) has better comfort Feeling, skin fit, ease of peeling off and moisturizing effect, in general, the effect of using the amount of 3 weight percent of Example 2 is better.

5. The degree of stratum corneum damage

The degree of keratin damage referred to in the present invention is that the facial mask compositions of Example 2 and Comparative Example 5 were applied to the face of the subject. After eight hours, the facial mask formed by the facial mask composition of Example 2 was After moistening with water, the mask was peeled off with bare hands, and the mask formed by the mask composition of Comparative Example 5 was directly peeled off with bare hands. The stratum corneum on the skin surface before applying the mask composition and after peeling off the mask was observed under a microscope, and evaluated according to the appearance of the stratum corneum, and the specific evaluation criteria were as follows.

○: The appearance of the stratum corneum is smooth and the stratum corneum is not damaged

×: The appearance of the stratum corneum is rough and the stratum corneum is damaged

6. Isolation effect

The isolation effect referred to in the present invention is a breathable tape (manufactured by Taiwan Minnesota Mining Manufacturing Company, and the product name is 3M breathable tape) to simulate the skin with pores, and the mask composition of Example 2 is coated on one side of the breathable tape And cover the mask of Comparative Example 8, and keep the area not coated with the mask composition as a blank group. After the mask is formed, apply lipstick and foundation on the mask and the tape without the mask composition, and stack the other side of the tape on four layers of paper towels. After 90 minutes, remove the breathable tape according to the lipstick and foundation. The penetration into the paper towel was used to evaluate the isolation effect of the mask formed by the mask composition of Example 2 and the mask of Comparative Example 8 on color cosmetics, and the specific evaluation criteria were as follows. The results are shown in Table 3 and Figures 3A to 3B.

○: Lipstick and foundation did not penetrate into the tissue after application

×: After application, the lipstick and foundation penetrated into the tissue

7. Anti-adhesion

The anti-adhesion property referred to in the present invention is that after coating the facial mask composition of Example 2, the facial mask covering Comparative Example 8 and coating the oil-in-water emulsion on pigskin simulating human skin, two Silicon oxide nano-powder and carbon black, and then use shaking to remove non-adhering nano-powder and using a hair dryer to remove non-adhering carbon black, and evaluate the examples according to the amount of nano-powder and carbon black adhered to pig skin 2. Adhesion resistance of the mask formed by the mask composition and the mask of Comparative Example 8 to nano-powder and carbon black. The aforementioned emulsion-coated pigskin represents the emulsion-only skin and is designated as the emulsion group. In addition, glass slides were used to replace pigskin and sea sand was used to replace nano-powder to evaluate the adhesion resistance of the mask formed by the mask composition of Example 2 and the mask of Comparative Example 8 to sea sand, and the specific evaluation criteria were as follows. The results are shown in Table 3 and FIGS. 4A to 4C .

○: Nano powder, carbon black or sea sand is not easy to adhere to pig skin or glass slide, almost no nano powder, carbon black or sea sand is attached to pig skin or glass slide

×: Nano-powder, carbon black or sea sand are easily attached to pigskin or glass slides, and a large amount of nano-powder, carbon black or sea sand is attached to pigskin or glass slides

8. Ease of makeup removal

The ease of removal of make-up referred to in the present invention is the application of the mask composition of Example 2 on the skin of a subject's arm. After the mask was formed, makeup was applied on the formed mask and uncoated skin (representing the blank group). After the makeup removal treatment, according to the residue of the makeup, the ease of removing the makeup was evaluated. In Example 2, a little water at room temperature was sprayed on the mask. After the mask was wet, the mask was peeled off by hand and removed. makeup, while the blank group uses a lot of of water to wash makeup. The specific evaluation criteria are as follows, and the results are shown in Table 3 and FIGS. 5A to 5B .

○: No makeup residue

×: Makeup remains and is hardly removed

table 3

Please refer to Table 3 and FIGS. 2A to 2D , wherein FIGS. 2A and 2C are photographs of the stratum corneum of the subjects of Example 2 and Comparative Example 5, respectively, before applying the mask composition, and FIGS. 2B and 2D are 2A and 2C, respectively, are the photographs of the subject's stratum corneum after peeling off the facial masks formed by the facial mask compositions of Example 2 and Comparative Example 5. The results show that: compared with the polyvinyl alcohol/polyvinylpyrrolidone composition of Comparative Example 5, the mask formed by the polyurethane-35 (A-1) composition of Example 2 has a lower degree of damage to the stratum corneum.

Please refer to Table 3 and FIGS. 3A to 3B , wherein FIG. 3A is a photo of the breathable tape coated lipstick (red block) and foundation (light brown block) of Example 2 and Comparative Example 8, and FIG. 3B is an adjacent view Photo of 3A's breathable tape paper towel absorbing lipstick and foundation that penetrated from the breathable tape. The tissue part of Example 2 has no penetration of lipstick and foundation, but the tissue part of Comparative Example 8 shows penetration of lipstick and foundation. The results show that: compared with Comparative Example 8 The mask formed by the composition of the polyurethane-35 (A-1) of Example 2 has the effect of effectively isolating color makeup.

Please refer to Table 3 and FIGS. 4A to 4C , wherein FIG. 4A is a photo of the pigskin of Example 2 and Comparative Example 8 after the nanopowder anti-adhesion test, and FIG. 4B is the pigskin of Example 2 and Comparative Example 8 The photo after the carbon black adhesion resistance test, and FIG. 4C is the photo of the glass slides of Example 2 and Comparative Example 8 after the sea sand adhesion resistance test. In FIGS. 4A to 4C , the pigskin of Example 2 has less nanopowder and carbon black attached, and the glass slide of Example 2 has less sea sand attached.

The foregoing results show that, compared with the patch type mask of Comparative Example 8, the mask formed by the leave-on mask composition of Example 2 has a good anti-adhesion effect on nano-powder, carbon black and sea sand.

Please refer to Table 3 and FIGS. 5A to 5B , wherein FIG. 5A is a photo of the subject's arm skin in Example 2 with makeup (left side) and a photo of the arm skin without a mask (right side). FIG. 5B is a photo after makeup removal according to FIG. 5A . FIG. 5A shows that the color makeup is applied to the mask formed by the mask composition of Example 2 without smearing, and the makeup on the mask has the same makeup feeling as the makeup on the skin. In addition, the makeup on the mask can be removed by moistening the mask with a little water at room temperature, and then removing the mask while peeling off the mask. As mentioned above, since the mask of Example 2 has good peeling ease and can effectively isolate the makeup, the makeup can be easily and completely removed while peeling off the mask. Use water to wash off the unmasked skin, but make-up cannot be washed off with a lot of water. The aforementioned results show that the mask formed by the mask composition of Example 2 has good makeup removal ease.

9. Whitening effect

The whitening effect test is to evaluate the whitening effect of the coated or uncoated compositions of Examples 8 to 10 and Comparative Examples 6 to 7 with 4 subjects. After washing the subject's arm skin with 12% sodium lauryl ether sulfate (SLES) foam cleanser, apply 30% dihydroxyacetone on the arm skin with an area of 2cm ² The solution was used for 40 minutes, then rinsed with water, and waited for 24 hours to fully brown the keratin of the skin to simulate the state of tanned skin. The appearance of the skin is shown in Figure 6A. Then, the epidermal melanin content of the subject's skin and The L value, and the individual typology angle (ITA) was calculated as the data of the skin "before treatment".

The skin black/red pigment probe is to obtain the amount of light absorbed by the skin by measuring the amount of light reflected by a known amount of light of a specific wavelength after irradiating the skin, and to indicate the content of melanin, and its unit is any colorimetric unit (arbitrary unit). mexameter unit).

ITA is a skin color measurement index based on the CIE (International Commission on Illumination) L*a*b* color space. The higher the ITA, the better the whitening effect, and the ITA can be calculated by the following formula (I): ITA (degrees )={Arc Tangent[(L-50)/b]}×180/π (I)

The L value represents light and dark, and the value ranges from 0 (black) to 100 (white)

b value represents yellow/blue light

Then, the compositions of Example 8 to Example 10 and Comparative Example 6 to Comparative Example 7 were applied on the skin of the test subject to form a facial mask, wherein the applied amount of the composition was 120 mg, and peeled off after 8 hours. Remove the mask. After 5 consecutive days at a frequency of once a day, the epidermal melanin content and L value of the skin of the subjects with and without the mask were measured, and the ITA was calculated as the data of the skin "after treatment", and The change rate of melanin content, L value and ITA was calculated to evaluate the whitening effect of Examples and Comparative Examples. The above results are shown in Table 4, while the appearance of the treated skin is shown in Figure 6B.

Regarding the change rate of melanin content, L value and ITA, the calculation method is shown in formula (II):

Please refer to Table 4, FIG. 6A and FIG. 6B, wherein Table 4 is the result of the aforementioned whitening effect test, and FIG. 6A is a photo of the subject's arm skin after being treated with dihydroxyacetone solution, and FIG. Photographs of subjects' arm skin with or without the compositions of Examples 8 to 10 and Comparative Examples 6 to 7.

Table 4

From Table 4, FIG. 6A and FIG. 6B : compared with the composition of Comparative Example 6 and Comparative Example 7 without the addition of PEG/PPG/polybutylene glycol-8/5/3 glycerol (B), Example 8 , The facial mask formed by the composition of adding PEG/PPG/polybutylene glycol-8/5/3 glycerol (B) of Example 9 and Example 10 has a better whitening effect on the skin of the subject's arm, wherein the The whitening effect of the use amount of 3 weight percent of Example 8 is better. This shows that PEG/PPG/polybutylene glycol-8/5/3 glycerin (B) can enhance tranexamic acid (G1-2) and retinol (G2-1) in the composition of the leave-on mask of the present invention whitening effect.

To sum up, the composition of the leave-on facial mask of the present invention is applied by controlling the amount of the film-forming agent (A) and the weight ratio of the film-forming agent (A) to the moisturizing penetrating agent (B). After a preset period of use, the leave-on mask can indeed provide good comfort, skin fit, ease of peeling, and moisturizing effect, and can effectively isolate makeup and anti-adherent pollutants. Furthermore, due to the good ease of peeling off, peeling off the mask will not cause damage to the skin keratin, and after moisturizing the mask with a little water at room temperature, the mask can be peeled off and the makeup on the mask can be removed at the same time. In addition, the composition of the leave-on facial mask of the present invention can enhance the transdermal penetration of the active additive (G) through the moisturizing penetrant (B), thereby helping to enhance the efficacy of the active additive (G).

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the appended patent application.

Claims (7)

A composition of a staying type facial mask, the composition is composed of a film-forming agent (A) with polyurethane-35 (A-1), a moisturizing penetrant (B), a flow regulator (C), and a wetting agent (D), water (E), a functional additive (F) and an active additive (G) are formed, it is characterized in that: this moisturizing penetrant (B) is polyoxyethyl polyoxypropyl polyoxybutyl Glycerol, and based on the total usage amount of the composition being 100 weight percent, a usage amount of the film-forming agent (A) is 10 weight percent to 20 weight percent but not including 10 weight percent and 20 weight percent, and the film forming The weight ratio of agent (A) to the moisturizing penetrant (B) is 2.4. The composition according to item 1 of the claimed scope, wherein based on the total usage amount of the composition being 100 weight percent, the usage amount of the moisturizing penetrant (B) is 0.5 weight percent to 5.5 weight percent. The composition of claim 1, wherein the rheology modifier (C) comprises at least one of polymers of acrylic acid and/or derivatives thereof. The composition according to item 1 of the claimed scope, wherein based on the total usage amount of the composition being 100 weight percent, a usage amount of the rheology modifier (C) is 0.1 weight percent to 2 weight percent. The composition of claim 1, wherein the wetting agent (D) is selected from the group consisting of liquid polyols, water-soluble alkoxylated nonionic polymers and any combination thereof. The composition according to item 1 of the claimed scope, wherein based on the total usage amount of the composition being 100 weight percent, a usage amount of the wetting agent (D) is 5 weight percent to 8 weight percent. The composition as described in item 1 of the claimed scope, wherein the functional additive (F) is selected from the group consisting of pH adjuster (F1), surfactant (F2), emollient (F3), antibacterial agent (F1), At least one of the group consisting of F4) and ethanol (F5), and the active additive (G) is selected from the group consisting of whitening agent (G1), antioxidant (G2) and sensitizer (G3) at least one of them.

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