KR101909569B1 - Cosmetic composition supporter foam, method for preparing the same and cosmetic product containing the same - Google Patents

Abstract

The present invention relates to a cosmetic composition support foam, a method for manufacturing the same, and a cosmetic comprising the same. More particularly, the present invention relates to a cosmetic composition support foam comprising a low-density amino resin foam, wherein the low-density amino resin foam has a density of 30 kg/m^3 or less, and an open cell and having a net structure, and to a method for manufacturing the same and a cosmetic comprising the same. According to the present invention, a cosmetic composition support foam can be provided, wherein the cosmetic composition support foam has lower density than a polyurethane foam, which is a conventional cosmetic support foam, and has excellent durability, impregnation properties, structural stability, and cushioning properties, and a method for manufacturing the same and a cosmetic comprising the same can be provided.

Description

TECHNICAL FIELD The present invention relates to a cosmetic composition, a method of preparing the same, a cosmetic composition containing the same, a cosmetic composition containing the same,

The present invention relates to a foam for supporting a cosmetic composition, a method for producing the same, and a cosmetic product containing the same, and more particularly, to a cosmetic composition having a durability lower than that of a conventional polyurethane foam, The present invention relates to a foam for supporting a cosmetic composition, a method for producing the same, and a cosmetic product containing the foam, which can greatly enhance the quality and ease of use of cosmetics because of excellent structural stability and cushioning property.

Various cosmetic products in which a liquid cosmetic composition is impregnated with a carrier of a polyurethane foam material have been developed in order to enhance convenience in use of cosmetics and to provide various functions.

The polyurethane foam is a polyether type and a polyester type, all of which have a porous foam form of a network-like structure.

However, the polyester type polyurethane foam has a low resistance to moisture, resulting in breakage in use, and the polyether type polyurethane foam has a large size of the porous cell, so that it is difficult to impregnate the liquid cosmetic composition, There is a problem that the cushioning property is deteriorated due to low hardness.

Accordingly, there is a demand for development of a foam for supporting a cosmetic composition having improved durability, impregnation property, supportability, structural stability and cushioning property.

Korean Patent Publication No. 2012-0108509

In order to solve the problems of the prior art as described above, the present invention provides a cosmetic composition which is low in density, polyurethane foam, And a method for producing the same, and a cosmetic product containing the same.

These and other objects of the present invention can be achieved by the present invention described below.

In order to achieve the above object, the present invention provides a low-density amino resin foamed foam, which has a density of 30 kg / m ³ or less, includes an open cell, The present invention provides a foamed foam for supporting a cosmetic composition.

Also, the present invention provides a method for producing an amino resin, comprising the steps of: a) condensing an amino compound and an aldehyde compound in a molar ratio of 1: 2 to 1: 4 under a base catalyst to produce an amino resin; b) 10 to 70 parts by weight of water, 0.1 to 5 parts by weight of an emulsifier, 0.1 to 10 parts by weight of an emulsifier, 0.1 to 50 parts by weight of a foaming agent, 0.1 to 7 parts by weight of a curing agent, 0 to 10 parts by weight of a dye, 0 to 10 parts by weight of a fluorescent whitening agent and 0 to 30 parts by weight of an additive are mixed and heated to produce an amino resin foam; And c) heat-treating the amino resin foam at 100 to 250 ° C to produce a low-density amino resin foam.

In addition, the present invention relates to a cosmetic composition, wherein the cosmetic composition is supported on the cosmetic composition supporting foam, wherein the cosmetic composition is a makeup primer, a makeup base, a foundation, a skin cover, a lipstick, a lip gloss, a face powder, a lip liner pencil, , A compact powder, a twin cake, a fact, a powder fact, an eyebrow, an eye shadow, a concealer, a blusher, a powder foundation or an airless formulation.

According to the present invention, it is possible to provide a cosmetic composition supporting foam which is less denser than polyurethane foam, which is a conventional foam for supporting a cosmetic composition, and which is excellent in durability, impregnability, supportability, structural stability and cushionability, A method for producing the same, and cosmetics containing the same.

Hereinafter, the foamed foam of the present invention, a method for producing the same, and cosmetics containing the same will be described in detail.

The present inventors have found that when a hard amino resin used in conventional construction materials and the like is made into a foamed foam and softened by controlling the density, hardness, elongation and rebound resilience so that it is used as a foamed foam for supporting a cosmetic composition, , Impregnation property, supportability, structural stability and cushioning property, and the present invention has been completed on the basis thereof.

In the present description, softening means that the amino resin, conventionally classified as a hard resin, has a soft property through cell size or structure control by foaming, and the density, hardness, Elongation and rebound elasticity.

The cosmetic composition supporting foam of the present invention includes a low density amino resin foam, wherein the low density amino resin foam has a density of 30 kg / m ³ or less, includes an open cell, and has a network structure .

In the present specification, the network refers to a structure forming a three-dimensional network, and is not particularly limited when it is a network structure that is generally understood and defined in the polymer field.

The low-density amino resin foam preferably has a density of 20 kg / m ³ or less, 15 kg / m ³ or less, 11 kg / m ³ or less, 5 to 20 kg / m ^3, from 5 to 15 kg / m ^3, or 9 to 11 kg / m < ³ >, and the cushioning effect is excellent even when the foam is not broken or broken within this range.

For example, the low density amino resin foam may have an elongation of 20% or more, 25% or more, 27% or 25% or 50%, and a rebound resilience of 40% or more, 45% or more, 50% or more, 53% To 60%, and the cushioning effect is excellent even if the foam is not broken or crushed within this range.

For example, the low density amino resin foamed foam has an open cell ratio of 80% or more, 85% or more, and preferably 90% or more, and has excellent impregnating property and storage property within this range.

The open cell ratio in this specification is measured by the ASTM D-6226 "Open cell content of Rigid Cellular Plastics" measurement standard.

The low-density amino resin foamed foam may have a cell size of 50 to 300 μm, 50 to 200 μm, preferably 50 to 150 μm or 100 to 150 μm, for example, and the cushioning, impregnating And an excellent effect of the supporting property.

The low density amino resin foamed foam may have an excellent hardness (ASKER "F") of 10 to 100, 40 to 90, 50 to 80, or 60 to 80 and excellent durability and structural stability within this range .

The low density amino resin foam may have an absorption capacity of 0.9 g / cm ³ or more, 0.90 to 1.5 g / cm ³ , 0.90 to 1.2 g / cm ³ , or 0.95 to 1.0 g / cm ³ , Durability and structural stability.

For example, the low density amino resin foamed foam may have a supporting force of 0.06 g / cm ³ or more, 0.1 to 0.3 g / cm ³ , 0.11 to 0.2 g / cm ³ , or 0.15 to 0.18 g / cm ³ , And has excellent durability and structural stability.

In this specification, the absorbency and the supporting force are measured according to the measurement standard of EN 13726-1 "Test methods for primary wound dressing".

The low-density amino resin foamed foam may be, for example, a synthetic resin foamed foam prepared by condensing an amine compound and an aldehyde compound. In this case, the low-density amino resin foamed foam has low durability and excellent durability and structural stability.

The low-density amino resin foamed foam may have an amine compound and an aldehyde compound in a molar ratio of 1: 2 to 1: 4, preferably 1: 2.1 to 1: 3.5, more preferably 1: 2.1 to 1: 3.0, Can be a synthetic resin foamed foam condensed with 1: 2.5 to 1: 2.9, and is excellent in durability, impregnation property, structural stability and cushioning property within this range, thereby greatly improving the quality and ease of use of cosmetics.

The low-density amino resin may be, for example, an alcohol-free low-density amino resin synthesized from only an amine compound and an aldehyde compound, and has excellent durability, impregnation property, structural stability and cushioning property within this range, It is effective.

As a specific example, the low-density amino resin foamed foam may be a foamed foam obtained by foaming and curing a mixture of a condensation agent, an emulsifier, a foaming agent and a curing agent to a synthetic resin obtained by condensing an amine compound and an aldehyde compound. In this case, , Durability, and structural stability.

The condensation agent may be used in an amount of 0.1 to 5 parts by weight, the emulsifier may be used in an amount of 0.1 to 10 parts by weight, the blowing agent may be used in an amount of 0.1 to 50 parts by weight, and the curing agent may be used in an amount of 0.1 to 7 parts by weight relative to 100 parts by weight of the synthetic resin, In this case, it has an excellent effect of heat resistance, durability, structural stability and the like while being low in density.

As another example, 0.1 to 1 part by weight of a condensation agent, 1 to 10 parts by weight of an emulsifier, 0.5 to 10 parts by weight of a foaming agent and 0.1 to 2 parts by weight of a curing agent are added to 100 parts by weight of a synthetic resin prepared by condensing the amine compound and an aldehyde compound In this case, it has an excellent effect of heat resistance, durability, structural stability and the like while being low in density.

As another example, 0.3 to 0.8 parts by weight of a condensing agent, 3 to 10 parts by weight of an emulsifier, 0.5 to 7 parts by weight of a foaming agent and 0.2 to 1 part by weight of a curing agent are added to 100 parts by weight of a synthetic resin obtained by condensing the amine compound and an aldehyde compound In this case, it has an excellent effect of heat resistance, durability, structural stability and the like while being low in density.

The condensing agent may be at least one selected from the group consisting of sodium bisulfite, ammonium sulfamate and sodium formate. In this case, the condensing agent is excellent in heat resistance and the like .

The emulsifier may be, for example, an anionic surfactant. Specific examples thereof include alkyl phosphates, polyoxyethylene alkyl phosphates, alkyl sulfonates, polyoxyethylene alkyl aryl sulfites, polyoxyethylene alkyl sulfites and sodium dodecylbenzene sulfonates , And in this case, there is an effect of excellent mechanical strength. Here, the alkyl group is not particularly limited when it corresponds to the alkyl group category of an emulsifier containing an alkyl group which is commercially available or conventionally synthesized.

Examples of the foaming agent include trichloromonofluoromethane (F-11), trichlorotrifluoroethane (F-113), dichlorotetrafluoroethane (F-114), furon (F- Heptane, cyclohexane, cyclopentane, and isopropyl ether. In this case, the heat resistance, mechanical properties, and cell characteristics are all excellent.

The curing agent may be at least one selected from the group consisting of sulfuric acid, phosphoric acid, hydrochloric acid, formic acid, benzenesulfonic acid, toluenesulfonic acid, phenolsulfonic acid and xylylenesulfonic acid.

The low-density amino resin foamed foam may further include 0.01 to 10 parts by weight of a dye and / or 0.01 to 10 parts by weight of a fluorescent brightening agent based on 100 parts by weight of a synthetic resin prepared by condensing an amine compound and an aldehyde compound. There is an excellent effect of aesthetics within.

As another example, the low-density amino resin foamed foam may further include 0.01 to 1 part by weight of a dye and / or 0.01 to 1 part by weight of a fluorescent brightener, based on 100 parts by weight of a synthetic resin obtained by condensing an amine compound and an aldehyde compound There is an excellent effect of aesthetics within this range.

The dye may be, for example, an azo dye. Specific examples thereof include 1 - ((2-methoxy-5-nitrophenyl) diazenyl) naphthalen- ) naphthalen-2-ol, DYCHEM Black 820s, Dyechem Red 336, Dyechem Green 520 and ORIKO Yellow 210. In this case, there is an effect of improving the sense of aesthetics without deteriorating other physical properties .

The fluorescent whitening agent may be, for example, a stilbene fluorescent whitening agent. Specific examples thereof include 1,4-bis- (4-cyan-styryl) -benzol ), BLANKOPHOR ER, and BLANKOPHOR DS. In this case, there is an effect of improving aesthetics without deteriorating other physical properties.

The amine compound may be at least one selected from the group consisting of melamine, melamine derivatives, urea, urea derivatives, guanamine, benzoguanamine, carboxyimide, dicyandiimide, sulfonimide, aliphatic amine, glycol, hydroquinone, resorcinol, Phenol, and derivatives thereof, and has an excellent durability and structural stability while having a low density within this range.

The melamine derivative may be, for example, a compound represented by the following general formula (1).

[Chemical Formula 1]

In Formula 1, X, X 'and X''is' selected from the group consisting of, but are not all -NH _2, R and R' respectively, -NH _2, -NHR and -NHR are HO-R _a, respectively, _{HO-R b - (OR c} -) - n, and NH ₂ -R _d - is selected from the group consisting of, wherein R _a is alkylene having 2 to 10, R _b is alkylene having 2 to 4 carbon atoms R _d is alkylene having 2 to 12 carbon atoms, and n is an integer of 1 to 5.

As another example, the amine compound may be a mixture of melamine and a melamine derivative, and in this case preferably composed of 85 to 99.9 mol% of melamine and 0.1 to 15 mol% of a melamine derivative, and within this range, It is effective.

The aldehyde compound may be at least one selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, octylphenol formaldehyde bromide, trimethylolacetaldehyde, benzaldehyde, glutaraldehyde, phthalaldehyde and terephthalaldehyde, And has excellent durability and structural stability while having low density within the range.

As another example, the cosmetic composition carrier foam of the present invention comprises a softened amino resin foam foam, wherein the softened amino resin foam foam has a density of 30 kg / m ³ or less, includes an open cell, The present invention is characterized by having a network structure, and when the cosmetic composition is supported on the cosmetic composition, the weight of the cosmetic composition is reduced, and durability, impregnation property, supportability, structural stability and cushioning property are greatly improved.

The softening can be defined, for example, within the range of density, hardness, elongation and rebound resilience of the present invention.

The process for preparing a cosmetic composition supported foam of the present invention comprises the steps of: a) condensing an amino compound and an aldehyde compound in a molar ratio of 1: 2 to 1: 4 under a base catalyst to produce an amino resin; b) 10 to 70 parts by weight of water, 0.1 to 5 parts by weight of an emulsifier, 0.1 to 10 parts by weight of an emulsifier, 0.1 to 50 parts by weight of a foaming agent, 0.1 to 7 parts by weight of a curing agent, 0 to 10 parts by weight of a dye, 0 to 10 parts by weight of a fluorescent whitening agent and 0 to 30 parts by weight of an additive are mixed and heated to produce an amino resin foam; And c) heat-treating the amino resin foam at a temperature of 100 to 250 ° C to produce a low-density amino resin foam. In this case, it is more convenient to use cosmetics than conventional polyurethane materials, , Cushioning property, and the like can be produced by using the low-density porous microcell. Such a manufacturing method includes all the features of the above-described cosmetic composition supporting foam.

The condensation reaction in step a) may be carried out under the conditions of 80 to 200 ° C and 100 to 500 kPa. As another example, the condensation reaction may be carried out under the conditions of 100 to 160 ° C and 100 to 300 kPa, 150 < 0 > C and 100 to 200 kPa. Within this range, an amino resin suitable for producing the low density amino resin foamed foam of the present invention, that is, a condensation product is produced.

The condensation reaction in step a) may be, for example, 30 minutes to 5 hours, 1 hour to 3 hours, or 1 hour to 2 hours. Within this range, the amino resin suitable for producing the low density amino resin foamed foam of the present invention , That is, a condensation product is produced.

The base catalyst of step a) may be added in an amount such that the pH of the reaction mixture containing the amino compound and the aldehyde compound is in the range of 6 to 10, and within this range, the low-density amino resin foamed foam of the present invention An amino resin suitable for the production of a condensation product.

The base catalyst of the step a) is not particularly limited when it is a base catalyst that can be used in a condensation reaction. For example, it may be an amine compound or a metal hydroxide, preferably sodium hydroxide. In this case, An amino resin suitable for the production of an amino resin foamed foam is produced.

In the step (b), the water may be, for example, 15 to 65 parts by weight or 20 to 60 parts by weight, and the low density amino resin foam of the present invention is stably produced within this range. Here, the amount of water means the amount of water contained in the mixture before foaming, so that if the amount of water in the mixture does not fall within the above range, water may be added to fall within the above range.

The mixing in the step b) may be performed by using a twin-screw extruder. In this case, homogenization is stable and well, and the physical properties of the low-density amino resin foam of the present invention are stably expressed.

The heating foaming in the step b) is not particularly limited when it is not lower than the vaporization or decomposition temperature of the foaming agent to be used. For example, it may be from 150 to 250 캜 or from 180 to 210 캜. Within this range, There is an effect that the physical properties of the foamed foam are stably expressed.

The heating foaming in the step b) may be carried out by irradiating a high frequency wave of 0.95 to 3.0 GHz per g with an output of 3 to 30 W, 10 to 25 W, or 12 to 18 W, and within this range, the low density amino There is an effect that the physical properties of the resin foamed foam are stably expressed.

The additive in the step b) is not particularly limited as long as it is an additive used in the production of foamed foam in the technical field of the present invention and does not significantly deteriorate the properties of the low density amino resin foamed foam of the present invention. For example, And 0 to 30 parts by weight, 0.1 to 20 parts by weight, or 0.5 to 10 parts by weight of such an additive may be used.

The heat treatment in step c) may be carried out at a temperature of 100 to 250 ° C, 130 to 220 ° C, or 150 to 200 ° C for 30 minutes to 3 hours, 50 minutes to 2 hours, or 1 hour to 1 hour and 30 minutes And there is an effect of aging effect, re-assembly or stabilization within this range.

For example, the foamed foam of the present invention may be produced by subjecting the foam to a high frequency of 0.95 to 3.0 GHz per g for 5 to 60 minutes or 1 to 15 W / 10 to 30 minutes, 5 to 12 W, or 8 to 12 W, and drying. In this case, the effect of stably expressing the physical properties of the low-density amino resin foam of the present invention can be obtained.

The cosmetic composition of the present invention is characterized in that the cosmetic composition is carried on the cosmetic composition supporting foam of the present invention, wherein the cosmetic composition is at least one selected from the group consisting of makeup primer, makeup base, foundation, skin cover, lipstick, lip gloss, face powder, lip liner pencil, Cheek color, compact powder, twin cake, fact, powder fact, eyebrow, eye shadow, concealer, blusher, powder foundation or airless formulation.

The cosmetic composition may be, for example, a water in oil (W / O) type or an O / W (oil in water) type emulsion type cosmetic composition.

For example, the cosmetic composition may have a viscosity of 5000 to 15000 cps. The cosmetic composition is excellent in impregnation property within the above range, and is less tacky when applied to skin.

In the present description, the viscosity refers to the Centi Poise viscosity commonly used in the art of cosmetic composition.

The cosmetic composition may comprise, for example, an active ingredient (active ingredient), an oily ingredient, an emulsifier, a pigment and an aqueous ingredient.

The active ingredient is not particularly limited insofar as it is a component that can be used as an active ingredient in a cosmetic composition. For example, a skin whitening agent, an anti-aging agent, an ultraviolet ray blocking agent, tocopherol, a retinoid, L-ascorbic acid, vitamin B, kojic acid, Wherein the cosmetic composition is at least one selected from the group consisting of carboxymethylcellulose, carboxymethylcellulose, carboxymethylcellulose, carboxymethylcellulose, carboxymethylcellulose, carboxymethylcellulose, caffeic acid, coixilaminopropyl phosphate, arbutin, green tea extract, grape seed extract, L-ascorbyl phosphate, L- May be from 0.1 to 30% by weight, from 0.1 to 20% by weight, or from 0.1 to 10% by weight based on the total weight, and the desired cosmetic effect is well expressed within this range.

Examples of the oily component include vegetable oils such as rosehip oil, safflower oil, peach seed oil, methofom seed oil, sunflower seed oil, dicaprilyl carbonate, squalane, neopentylglycol diheptanoate, tocopheryl acetate , Trioctanoin, C12-15 alkyl benzoate, C12-15 alkyl ethyl hexanoate, octyldodecyl myristate, tricaprylyl, octyldodecyl stearoyl stearate, bis-hydroxyethoxypropyl dimethicone , Caprylic, capric triglyceride, isotridecylisononanoate, polyglyceryl-2 triisostearate, diisostearyl malate, dipentaerythritol pentaacrylate ester, cetyl octanoate, ozone And synthetic esters such as carbon tetrachloride, etc., and silicones such as hydrocarbons, phenyltrimethicone, cyclomethicone, dimethicone, decamethylcyclopentasiloxane, etc. Of at least one, relative to the total weight of the cosmetic composition may be contained in an amount of from 20 to 79% by weight, the stability of the cosmetic composition excellent in this range, there is a less sticky feeling, a good effect.

The emulsifier can be, for example, a nonionic surfactant having an HLB range of 1 to 6, and more specifically, cyclopentasiloxane and PEG / PPG-18/18 Dimethicone, But are not limited to, glyceryl stearate, sorbitan sesquioleate, glyceryl oleate, glycoll distearate, propylene glycol monostearate, glyceryl stearate, (PEG-10 Dimethicone), cyclopentasiloxane / PEG.PPG-30, Dipolyhydroxystearate, Glyceryl Stearate, Sorbitan Stearate, PEG-30 Dipolyhydroxystearate, 19.19 Dimethicone, PEG.PPG-19.19 Dimethicone, Sorbitan Isostearate, Lauryl PEG.PPG-18.18 Methicone, Cetyl PEG.PPG-10.1 Dimethicone, Cety 1 PEG-PPD-10.1 dimethicone) and lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Lewyl PEG-9 Polydimethylsiloxyethyl Dimethicone), 0.01 to 10 wt% based on the total weight of the cosmetic composition %, An emulsion is formed within this range, the stability of the cosmetic composition is excellent, and the stickiness and inherent odor of the emulsifier itself are suppressed.

The pigment may be at least one selected from among PMMA (polymethylmethacrylate), silica, nylon, polyurethane, ultramarine, iron oxide, pearl, synthetic mica, mica, talc, cerasite and boron nitride The cosmetic composition according to the present invention may contain the cosmetic composition in an amount of 0.1 to 20% by weight based on the total weight of the cosmetic composition. Within this range, the cosmetic composition has an excellent adherence, color expression, thickening power, feeling and stability.

The aqueous component may be contained in an amount of 20 to 70% by weight, based on the total weight of the cosmetic composition, of at least one selected from the group consisting of purified water, propylene glycol, 1,3-butylene glycol and glycerin, Within this range, there is an effect of excellent stability and feeling of use of the formulation.

The cosmetic composition may further include at least one selected from preservatives, fragrances, and other cosmetic additives.

The preservative may be at least one selected from the group consisting of parabens such as methylparaben, propylparaben, butylparaben, ethylparaben, and phenoxyethanol.

The fragrance is not particularly limited when the fragrance can be used in cosmetics, and it is preferable that the fragrance is added at the last stage in the production of the cosmetic composition.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Such variations and modifications are intended to be within the scope of the appended claims.

[Example]

≪ Preparation of low density open cell amino resin foamed foam &

Example  One

A mixture of 85 mol% of a melamine compound and 15 mol% of octylphenol formaldehyde having a softening point of 80 and a formaldehyde at a molar ratio of 1: 2.2 were mixed under a sodium hydroxide catalyst, and the mixture was stirred at 120 DEG C for 70 minutes A condensation product (amino resin) was prepared. Here, the melamine compound is a mixture of 90 mol% of melamine and 10 mol% of trimethylolmelamine.

0.5 parts by weight of sodium formate and 8 parts by weight of sodium dodecylbenzenesulfonate were added to 100 parts by weight of the resulting uncured condensation product and dispersed for a predetermined period of time. Then, 1.2 parts by weight of dichlorotetrafluoroethane and 0.3 parts by weight of formic acid were added, The mixture was mixed with an extruder, and the mixture was irradiated with a high-frequency power of 15 W per 1 g in a high frequency generator to prepare a foam. The fabricated foam was dried by irradiating a high-frequency power of 10 W per 1 g for 10 to 30 minutes in a high-frequency generator. The dried foam was aged by heat treatment at 170 ° C for 1 hour using hot air.

Example  2

A mixture of a mixture of 99.9 mol% of a melamine compound and 0.1 mol% of octylphenol formaldehyde having a softening point of 80 and a molar ratio of formaldehyde to a melamine compound of 1: 3.4 were mixed under a sodium hydroxide catalyst at 120 DEG C Lt; / RTI > for 70 minutes to produce a condensation product. Here, the melamine compound is a mixture of 99 mol% of melamine and 1 mol% of trimethylolmelamine.

0.5 parts by weight of sodium formate and 8 parts by weight of sodium dodecylbenzenesulfonate were added to 100 parts by weight of the resulting uncured condensation product and dispersed for a predetermined time. Then, 1.2 parts by weight of dichlorotetrafluoroethane and 0.3 parts by weight of formic acid were added The mixture was mixed with a twin-screw extruder, and the mixture was irradiated with a high-frequency power of 15 W per 1 g in a high-frequency generator to prepare a foam. The fabricated foam was dried by irradiating a high-frequency power of 10 W per 1 g for 10 to 30 minutes in a high-frequency generator. The dried foam was aged by heat treatment at 170 DEG C for 1 hour using hot air.

Example  3

37% of an aqueous solution of melamine and formaldehyde was mixed with a molar ratio of 1: 2.7 (melamine: formaldehyde) under a sodium hydroxide catalyst and stirred at 90 DEG C for 120 minutes to prepare a condensation product.

0.5 parts by weight of sodium formate and 8 parts by weight of sodium dodecylbenzenesulfonate were added to 100 parts by weight of the resulting uncured condensation product and dispersed for a predetermined time. Then, 1.2 parts by weight of dichlorotetrafluoroethane and 0.3 parts by weight of formic acid were added The mixture was mixed with a twin-screw extruder, and the mixture was irradiated with a high-frequency power of 15 W per 1 g in a high-frequency generator to prepare a foam. The fabricated foam was dried by irradiating a high-frequency power of 10 W per 1 g for 10 to 30 minutes in a high-frequency generator. The dried foam was aged by heat treatment at 170 ° C for 1 hour using hot air.

[Test Example 1]

The characteristics of the low density open cell amino resin foamed foam prepared according to Examples 1 to 3 were measured by the following test methods, and the results are shown in Table 1 below.

1) Density: The density value was measured according to the density measurement method from the volume of KA A0602.

2) Mechanical properties: The hardness, tensile strength and elongation were measured using an Instron universal testing machine according to KM M6518

3) Rebound Elasticity: The rebound resistance value was measured according to KS M ISO 8307.

4) Cell analysis: An enlarged photograph was taken and analyzed using an electron microscope according to KS D ISO 16700. The cell size measurement was taken at a ratio of 100 times or more using an electron microscope, and the average value was measured by measuring at least 10 cell sizes using a scale bar.

Test Items Example 1 Example 2 Example 3 Density (kg / m3) 10.5 9.3 10.7 Hardness (ASKER "F") 65 63 75 Tensile strength (kg / cm 2) 5.8 5.7 6.1 Elongation (%) 30 32 27 Resilience (%) 52 55 53 Cell size (탆)

50 to 150 50 to 150 50 to 150

As shown in Table 1, it was confirmed that the foamed foam of the present invention had a low density, a network structure, and softness.

[Test Example 2]

The comparison of the cell properties of the low density open-celled amino resin foam prepared in Example 3 with the conventional polyurethane foam for impregnating the cosmetic composition with the aid of the mechanical properties, the absorption capacity, the supporting force and the electron microscope was carried out. Are shown in Table 2 below.

For reference, a conventional polyurethane foam for impregnating a cosmetic composition is prepared by washing a commercially available product with ethanol and drying

1) Absorbency and carrier force were measured according to the EN 13726-1 "Test methods for primary wound dressing" measurement standard.

(Comparative test results with polyurethane foam for impregnating conventional cosmetic compositions)

Test Items Company A -1 Company A -2 Company B Example 3
Amino resin foam Density (kg / m3) 80 70 60 10 Hardness (ASKER "F") 65 60 68 75 Rebound resilience 32 33 31 53 Absorption power (g / cm3) 0.78 0.89 0.85 0.98 Carrier force (g / cm3) 0.04 0.05 0.045 0.16 Cell size (탆)

100 to 400 100 to 400 150-300 50 to 200 Product picture

As shown in the above Table 2, the cosmetic composition supporting foam of the present invention (Example 3) is more open and polygonal than the conventional polyurethane foam (products of Company A and Company B) and is a carrier for impregnating a cosmetic composition, And it was confirmed that there was a high rebound resilience showing excellent cushion performance.

These results indicate that when a liquid cosmetic composition is carried on the foamed foam of the present invention, a larger amount of the cosmetic composition can be stably supported in comparison with a case where a liquid cosmetic composition is carried on a conventional polyurethane foam Could know.

Claims (13)

Low-density amino resin foam,
The low-density amino resin foam is foamed by foaming and curing a mixture of a condensation agent, an emulsifier, a foaming agent and a curing agent to a synthetic resin obtained by condensing an amine compound and an aldehyde compound,
Further comprising 0.01 to 10 parts by weight of a dye and / or 0.01 to 10 parts by weight of a fluorescent whitening agent based on 100 parts by weight of the synthetic resin,
A density of 30 kg / m ³ or less, an open cell, and a network structure
Low density cosmetic composition carrier foams. The method according to claim 1,
Wherein the low-density amino resin foamed foam is an amino resin foamed foam which is elongated at a stretch ratio of 20% or higher and a rebound resilience of at least 40%
Low density cosmetic composition carrier foams. The method according to claim 1,
The low density amino resin foam is characterized in that the open cell ratio is 80% or more
Low density cosmetic composition carrier foams. The method according to claim 1,
The low-density amino resin foamed foam has a cell size of 50 to 300 mu m
Low density cosmetic composition carrier foams. The method according to claim 1,
The low-density amino resin foamed foam has a hardness (ASKER "F") of 10 to 100
Low density cosmetic composition carrier foams. delete delete The method according to claim 1,
0.1 to 5 parts by weight of a condensation agent, 0.1 to 10 parts by weight of an emulsifier, 0.1 to 50 parts by weight of a blowing agent and 0.1 to 7 parts by weight of a curing agent, based on 100 parts by weight of a synthetic resin obtained by condensing the amine compound and an aldehyde compound
Low density cosmetic composition carrier foams. delete The method according to claim 1,
The amine compound may be at least one selected from the group consisting of melamine, melamine derivatives, urea, urea derivatives, guanamine, benzoguanamine, carboxyimide, dicyandiimide, sulfoneimide, aliphatic amine, glycol, hydroquinone, resorcinol, Phenol, and derivatives thereof.
Low density cosmetic composition carrier foams. The method according to claim 1,
Wherein the aldehyde compound is at least one selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, octylphenol formaldehyde bromide, trimethylolacetaldehyde, benzaldehyde, glutaraldehyde, phthalaldehyde and terephthalaldehyde
Low density cosmetic composition carrier foams. a) condensing an amino compound with an aldehyde compound in a molar ratio of 1: 2 to 1: 4 under a base catalyst to produce an amino resin;
b) 10 to 70 parts by weight of water, 0.1 to 5 parts by weight of an emulsifier, 0.1 to 10 parts by weight of an emulsifier, 0.1 to 50 parts by weight of a foaming agent, 0.1 to 7 parts by weight of a curing agent, 0 to 10 parts by weight of a dye, 0 to 10 parts by weight of a fluorescent whitening agent and 0 to 30 parts by weight of an additive are mixed and heated to produce an amino resin foam; And
c) heat-treating the amino resin foam at 100 to 250 ° C to produce a softened amino resin foam.
(JP) METHOD FOR PREPARING LOW CODING COSMETIC COMPOSITION FOLDING FOAM The cosmetic composition of claim 1, wherein the low-density cosmetic composition-supporting foam according to any one of claims 1 to 5, 8, 10, 11,
The cosmetic composition may be used as a makeup primer, a makeup base, a foundation, a skin cover, a lipstick, a lip gloss, a face powder, a lip liner pencil, an eyeliner, a cheek collar, a compact powder, a twin cake, a fact, , A concealer, a blusher, a powder foundation or an airless formulation
cosmetics.