KR20190062195A - MASK Sheet AND PREPARTION METHOD THEREOF - Google Patents

Abstract

The present invention relates to a mask sheet with an excellent cosmetic effect while increasing the convenience of a user. The mask sheet of the present invention increases the convenience of the user because of being used in a high humidity environment, is easy to use, and hygienic, because the contents do not get on hands during handling, and has excellent skin adhesion and excellent usability even if moisture or water gets on the mask sheet. In addition, the mask sheet is impregnated with a high viscosity formulation such as cream or gel and then can be utilized as a high moisturizing and high nutrition pack.

Description

MASK SHEET AND MANUFACTURING METHOD THEREOF MASK SHEET AND PREPARATION METHOD THEREOF

The present invention relates to a mask sheet having an excellent cosmetic effect while enhancing user's convenience.

The mask pack is applied to the skin and allowed to stand for a predetermined time and then removed. The mask pack is classified into various kinds according to its formulation and use method.

Among them, the wash-off type mask pack is a product which is rinsed and rinsed out after 15 to 20 minutes after application to the skin. In this wash-off type mask pack, cosmetically effective ingredients are not sufficiently absorbed or delivered to the skin within a time of about 20 minutes, so that the effect of cosmetics is insufficient and the user has to take care of facial cleansing.

Accordingly, research has been conducted to increase the convenience of the user by reducing the hassle of cleansing after a certain period of time, and to find a way to increase the sustainability of the effect of the beauty.

Specifically, Korean Patent Registration No. 10-0525905 discloses that 0.5 to 30 parts by weight of a clay mineral having a ratio of bentonite to kaolin of 1: 3 to 1:10, a ratio of titanium dioxide to a photochromic inorganic pigment of 1:10 to 1 : 15 to 0.5 to 30 parts by weight, and the package cosmetic composition can visually confirm the pack removal time according to the color change of the coating film according to the light, It is possible to maximize the sex. Korean Patent Registration No. 10-1762902 discloses a skin sheet for contact with skin having a good skin-dispersing ability and a product using the skin sheet. The present invention discloses a cosmetic sheet of a melted formulation having high skin permeability and absorption amount have.

However, when the mask pack is applied to the skin and used in a high humidity environment or in a shower or a bath, the cosmetic effect can not be exhibited, which is very limited in the cosmetic method.

On the other hand, the mask sheet is a product in which a cosmetic solution containing a moisturizing agent, a whitening agent, a wrinkle remover, and other functional cosmetic ingredients is impregnated in a sheet-like base material, and is used in such a manner that it is attached to the user's skin for a certain period of time and removed. The mask sheet is one of the most common forms of mask packs because it has excellent portability and ease of use, and research and development is continuously carried out to meet various needs of consumers.

Most of the currently available mask sheets are manufactured by impregnating a base material such as a nonwoven fabric with a cosmetic composition, folding the base material into a packaging bag, and then injecting and sealing the contents. Therefore, as the contents to be injected, a lotion or a serum having a low viscosity and excellent flowability is used so as to be easily impregnated into a substrate. On the other hand, high viscosity formulations such as creams and gels have low fluidity and are difficult to impregnate into the substrate in the same manner as described above, so that there are restrictions on their use as contents.

Therefore, it is possible to use in a high humidity environment, thereby enhancing the convenience of the user, developing a new mask sheet having excellent skin adhesion even when water or water is deposited on a mask sheet, and using a high viscosity formulation as a content, .

In addition, the mask sheet is applied to the skin before showering or bathing, and after the shower or bath is finished, the mask sheet is removed, so that the mask sheet removal time is not required, and the moisturizing and exfoliation reduction effect It is necessary to develop a cosmetic method that can give the user a good feeling.

Korean Patent Registration No. 10-0525905, photo sensitive pack cosmetic composition Korean Patent Registration No. 10-1762902, a skin-contacting fibrous sheet having excellent skin dispersibility and a product using the same

The inventors of the present invention have completed the present invention by studying a mask sheet having a high cosmetic effect because it can be used in a high humidity environment, a shower or a bath, thereby increasing the convenience of the user and supporting the contents of a high viscosity formulation.

Accordingly, it is an object of the present invention to provide a mask sheet which improves user's convenience and has a high cosmetic effect.

Another object of the present invention is to provide a method of manufacturing the mask sheet.

Another object of the present invention is to provide a cosmetic method using the mask sheet.

In order to accomplish the above object, the present invention provides a cosmetic composition comprising: a base layer impregnated with a wash-off type cosmetic composition; And a blocking layer which is laminated on one surface of the base layer and is waterproof so that external water droplets do not penetrate the base layer.

The base layer may be a nonwoven fabric, a cotton fabric, a woven fabric, a paper, a foam or a sponge.

The material of the base layer may be at least one material selected from the group consisting of viscose rayon, modal, lyocell, tencel, cupra, polyester, polypropylene, polyethylene terephthalate, nylon, cotton, hemp, pulp and cellulose .

The water content of the base layer may be 100 to 200%.

The thickness of the base layer may be 20 [mu] m to 2 mm.

The thickness of the occlusion layer may be in the range of 10 탆 to 500 탆.

The occlusion layer may be formed of at least one selected from the group consisting of a fluorine-based, silicone-based, urethane-based, Teflon-based, polyacrylonitrile (PAN), polyethylene oxide (PEO), polyethylene terephthalate (PET), polystyrene (PS), polyvinylidene fluoride (PU), polyvinyl propylene (PVP), polyvinyl alcohol (PVA), nylon, polyethersulfone (PES), polyetherimide (PEI), poly (styrene-butadiene- styrene) (SBS), carboxymethylcellulose (CMC) polyethylene (PE), an ethylene vinyl acetate resin, and a styrene-isoprene-styrene block copolymer.

The average pore diameter of the occlusion layer may be 0.4 nm to 100 탆.

The laminate of two or more layers constituting the mask sheet is made of at least one adhesive selected from the group consisting of an acrylic adhesive, a rubber adhesive, a polyurethane adhesive, a polyester adhesive, a silicone adhesive, and a hot-melt adhesive .

The viscosity of the wash-off type cosmetic composition may be from 5,000 to 200,000 cps.

The wash-off type cosmetic composition may comprise one or more kinds of raw materials selected from the group consisting of plants, tea leaves, petals, sugar, and scrub agents.

At this time, the raw material may be contained in an amount of 0.001 to 50% by weight based on the whole cosmetic composition.

The mask sheet may further include a release film on the outer surface of the base layer on which the cosmetic composition is supported.

In addition,

S1) preparing a base layer;

S2) laminating a closure layer on one side of the base layer;

S3) applying a wash-off type cosmetic composition to the other surface of the base layer.

Also, the wash-off type cosmetic composition comprises at least one raw material selected from the group consisting of plants, tea leaves, petals, sugar, and a scrub agent; The raw material may be contained in an amount of 0.001 to 50% by weight based on the entire wash-off type cosmetic composition.

The method may further comprise, between steps S2) and S3), laminating a release film on the base layer such that one side of the base layer faces one side of the release film coated with the wash-off type cosmetic composition.

The method may further include folding the mask sheet so that the wash-off type cosmetic composition is not exposed to the outside after step S3).

Further, the present invention provides a cosmetic method using the mask sheet,

Applying the mask sheet to the skin;

Removing the mask sheet after a shower or bath; And

And a step of rinsing the skin on which the mask sheet has been applied with water.

The mask sheet of the present invention can be used in a high humidity environment, thereby enhancing the convenience of the user. The mask sheet is hygienic because the contents are not hung on the hands during handling and is hygienic. Even if moisture or water is deposited on the mask sheet, Is excellent and excellent in feeling. In addition, the mask sheet may be impregnated with a highly viscous formulation such as cream or gel, and used as a moisturizing and high nutritional pack.

1 is a cross-sectional view of a mask sheet according to an embodiment of the present invention.
2 is a cross-sectional view of a mask sheet according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. These drawings may be embodied in various different forms as an embodiment for explaining the present invention, and are not limited thereto. In the drawings, parts not relating to the description are omitted for clarifying the present invention, and similar reference numerals are used for similar parts throughout the specification. Also, the size and relative size of the components shown in the figures are independent of the actual scale and may be reduced or exaggerated for clarity of description.

mask sheet

The present invention provides a cosmetic composition comprising: a base layer impregnated with a wash-off type cosmetic composition; And a blocking layer which is laminated on one surface of the base layer and is waterproof so that external water droplets do not penetrate the base layer.

1 is a cross-sectional view of a mask sheet according to an embodiment of the present invention. 1, the mask sheet of the present invention includes a base layer 21 and an occlusion layer 22. [ At this time, the wash-off type cosmetic composition is impregnated in the base layer 21 and does not come out of the occlusion layer 22.

The mask sheet of the present invention is impregnated with a wash-off type cosmetic composition on only one side, and the mask sheet may be folded so that the wash-off type cosmetic composition is not exposed to the outside. In this way, it is easy to use because the contents do not touch the hands.

In addition, although the mask sheet includes the occlusion layer, it exhibits excellent skin adhesion and a pleasant feeling of use. In addition, the mask sheet of the present invention is impregnated with a high-viscosity formulation such as cream or gel, unlike conventional prototypes, and can provide high moisturizing and nutritive effects.

2, the mask sheet may further include a release film 10 laminated on the outer surface of the base layer 21. The wash-off type cosmetic composition impregnated by the release film may be applied to the user's It does not get stuck in the hands and can not evaporate out.

The releasing film 10 protects the skin contact surface of the mask sheet 20 before adhering to the skin and prevents contamination and evaporation of the cosmetic composition carried on the base layer 21, And the base layer 21 of the mask sheet 20 with which the release film 10 is in contact becomes the skin contact surface.

The material of the release film 10 is not particularly limited and any material known to be usable as a release film in the art can be used without limitation. In particular, a PET film, a PET film subjected to embossing treatment, a PP film and the like are preferable.

In the present invention, the mask sheet 20 includes a base layer 21 used as a surface to which a wash-off type cosmetic composition is impregnated and attached to the skin.

The base layer 21 has a plurality of pores so that the wash-off type cosmetic composition can be impregnated, and the shape and the material of the base layer 21 are not particularly limited as long as they are excellent in liquid retention.

For example, the base layer 21 may be a nonwoven fabric, a cotton fabric, a woven fabric, a paper, a foam or a sponge. The base material may be viscose rayon, modal, lyocell, tencel, cupra, polyester, polyethylene (PE) Polypropylene (PP), polyethylene terephthalate (PET), polyvinyl alcohol (PVA), polyvinyl chloride (PVC), polyacrylonitrile (PAN), polyamide, polyurethane (PU), polylactic acid (PLA) , Nylon, cotton, hemp, pulp, and cellulose, but is not limited thereto. Preferably, the base layer may be viscose rayon nonwoven, tencel nonwoven, cupra nonwoven or cotton nonwoven.

The mass per unit area of the base layer 21 is not particularly limited, but may be 10 to 150 gsm (g / m ² ). Also, the water content of the base layer 21 may be in a range of 100 to 200% of the weight of the base layer itself, but is not limited thereto.

The thickness of the base layer 21 is not particularly limited in the present invention and may be appropriately adjusted as required, but it is preferably in the range of 20 μm to 2 mm. If the thickness of the base layer is less than 20 탆, the mask sheet may not be easily spreadable and easily torn, and when it is more than 2 mm, the mask sheet becomes excessively thick, Therefore, it is properly adjusted within the above range.

In the present invention, the occlusion layer 22 is laminated on one side of the base layer 21, but the wash-off type cosmetic composition impregnated in the base layer 21 is not impregnated or absorbed into the occlusion layer 21, The occlusion layer 22 has a function of preventing foreign matter and water droplets from penetrating into the occlusion layer 22 so that the occlusion layer 22 can mix the wash-off type cosmetic composition impregnated in the base layer 21 with external water droplets Can be prevented.

The blocking layer 22 may be formed by a laminating method. Here, the laminating method is a method of adhering a film to a fiber or a substrate. Since the lamination method is to adhere a thin film to a fiber or base material having high flexibility, the flexibility of the base material to be adhered is not deteriorated, and a soft touch and an adhesion can be obtained.

The closure layer 22 may be manufactured by laminating two or more kinds of microporous films to the base layer 21 several times. At this time, the materials of the two or more kinds of microporous films may be different from each other or may be the same, and the different sizes of the micropores may be given different functions.

The closure layer 22 is preferably formed in a thin film form so as not to deteriorate the inherent flexibility of the base layer 21. Accordingly, the thickness of the occluding layer 22 may be 10 to 500 탆.

If the thickness of the occluding layer is less than 10 mu m, the releasability of the mask sheet lowers and tearing easily occurs. When the thickness of the occluding layer exceeds 500 mu m, separation from the base layer may occur, and the mask sheet becomes too thick There is a problem that the adhesion is lowered and the flexibility is lowered when adhered to the skin. Therefore, it is preferable to appropriately adjust within the above range.

The occlusion layer 22 has fine holes smaller than the diameter of the water vapor. Through the fine holes, moisture in the form of water vapor such as sweat is passed through, but water drops can not pass through.

The average pore diameter of the occlusion layer may be 0.4 nm to 100 탆. If the diameter of the micropores is less than 0.4 nm, the skin becomes more airtight and uncomfortable feeling can be obtained. If the diameter is more than 100 탆, foreign matter or water droplets can penetrate into the mask sheet. More preferably 10 nm to 35 탆, but is not limited thereto.

As the material of the occlusion layer 22, a synthetic polymer, a natural polymer, or a combination thereof may be used.

 Specifically, the material of the occluding layer may be a fluorine-based material, a silicon-based material, a polyacrylonitrile (PAN), a polyethylene oxide (PEO), a polyethylene terephthalate (PET), a polystyrene (PS), a polyvinylidene fluoride (PU), polyvinyl propylene (PVP), polyvinyl alcohol (PVA), nylon, polyethersulfone (PES), polyetherimide (PEI), poly (styrene-butadiene-styrene) (SBS), carboxymethylcellulose CMC) polyethylene (PE), ethylene vinyl acetate resin, and styrene-isoprene-styrene block copolymer. Preferably, one or more selected from the group consisting of silicone, At least one selected from the group consisting of polyurethane and polyacrylonatryl can be used.

In the present invention, the occlusion layer 22 may further have oil repellency so as to prevent the cosmetic composition from being transferred and to exhibit a blocking effect. That is, the occlusion layer may be made of a waterproof and oil repellent component, or may be a water repellent or oil repellent component-free or a water repellent component coated on a weak substrate.

The closure layer 22 of the present invention is preferably formed in a thin film form so as to serve as a shielding film without reducing the flexibility of the base layer 21. [ Specifically, the occluding layer may be formed with a mass per unit area of 1 to 50 gsm, more preferably 1 to 20 gsm. If the mass per unit area of the occlusive layer is less than 1 gsm, permeation and evaporation of the cosmetic composition impregnated into the base layer is difficult to prevent, and if it exceeds 50 gsm, the flexibility of the base layer is lowered, It can show a feeling of stuffy feeling.

Such a closure layer 22 exhibits excellent adhesion when bonded to the base layer 21 and is manufactured so as not to impair the skin adhesion property because of its high flexibility. The cosmetic composition of the wash-off type is not leaked to the outside, Water droplets do not pass and the wash-off type cosmetic composition contained in the mask sheet is not evaporated, so that it can be used in a high humidity environment, thereby enhancing the convenience of the user, and even if foreign substances and water droplets are deposited on the mask sheet Skin adhesion can be maintained.

In addition, since the mask sheet includes the occlusion layer, the contents are not hung on the hands during handling, which is easy to use and hygienic.

In an embodiment of the present invention, two or more layers of the layers constituting the mask sheet may be laminated by an adhesive, thermal fusion, ultrasonic waves, or stitching.

Here, the lamination may be performed by one or more adhesives selected from the group consisting of an acrylic adhesive, a rubber adhesive, a polyurethane adhesive, a polyester adhesive, a silicone adhesive, and a hot-melt adhesive. At this time, in order to prevent the permeability of the mask sheet from being lowered by the adhesive, the adhesive can be applied by point fusion.

Preferably, a hot-melt adhesive may be used as the adhesive. The hot-melt adhesive is an adhesive which does not use water or a solvent at all but adheres to a nonvolatile, nonflammable or thermoplastic resin which is solid at room temperature while being melted by heat. The hot-melt adhesives are environment-friendly because they do not contain solvents and have less skin irritation.

The kind of the hot-melt adhesive is not particularly limited, and adhesives conventionally used in the art can be used without limitation. Specifically, the hot-melt adhesive may include a resin such as an ethylene-vinyl acetate copolymer (EVA), a polyethylene (PE), a polypropylene (PP), a styrene-isoprene- styrene block copolymer, a polyester, a polyamide, (Such as paraffin wax and polyethylene wax), a tackifier resin (rosin resin, terpine resin, coumarone resin, petroleum resin and the like), a plasticizer (paraffin, aromatic oil and the like) , Fillers (calcium carbonate, cray, etc.), antioxidants (phenols, aromatic amines, etc.), and the like.

The amount of the adhesive to be used in the present invention is not particularly limited and may be appropriately adjusted as needed, but may be in the range of 0.1 to 10 gsm, for example. When the above range is satisfied, it is possible to ensure appropriate adhesiveness, and it is possible to avoid the problem that the air permeability of the mask sheet is lowered due to excessive application of the adhesive, which is preferable.

The formulation of the wash-off type cosmetic composition impregnated in the mask sheet 20 of the present invention is not particularly limited as long as it can be impregnated in the base layer 21, but it is preferable to use a high viscosity formulation having a viscosity of 5,000 to 200,000 cps desirable.

The cosmetic composition of the above-mentioned high viscosity form is superior in moisture permeability as compared with a highly flowable formulation such as emulsion, lotion and the like, and can increase the content of the oil component and the active ingredient. Therefore, And has the advantage of maximizing the moisturizing effect and the regeneration effect. In addition, when a high-viscosity formulation is applied, the content is not flowed down from the mask sheet during circulation or use of the mask sheet, and thus convenience in use is also excellent.

At this time, the viscosity of the wash-off type cosmetic composition can be measured by a viscosity measuring instrument. Specifically, 100 g of the sample was placed in a container and kept in a thermostatic chamber at 30 ° C. for 12 hours or more. Then, a BROOKFIELD RVDV-II + pro viscometer (SPK) was set at a spindle number of 64 and a spindle speed of 12 rpm ), And the viscosity of the cosmetic composition can be measured by measuring the viscosity value by operating the instrument for 2 minutes.

The components of the wash-off type cosmetic composition are not particularly limited in the present invention and include moisturizing ingredients such as fatty alcohols, waxes, oils and glycerin, improving wrinkles, whitening the skin, protecting against UV rays, preventing aging, , A natural extract, and the like can be used.

For example, the active ingredients of the skin may be selected from the group consisting of plants, petals, tea leaves, retinol, retinyl palmitate, retinyl acetate, retinoic acid, coenzyme Q10, elastin, collagen, hyaluronic acid, ceramide, collagen, caffeine, chitosan, ascorbic acid, At least one selected from the group consisting of ascorbyl glucoside, alpha bissabellol, tocopherol, tocopherol acetate, arbutin, niacinamide, adenosine, retinol acetate, vitamins A, D, E and natural extracts.

The natural extract may be selected from the group consisting of roses, aloe, green tea, ginseng, red ginseng, pearl, vinegar, pine leaf, ginkgo leaf, propolis, mulberry leaf, silkworm, snail slime, kakaduplum, camucam, yashiyama, squalane, caviar, Berry, locust hanger, acerola, chlorella, mangosteen, guava, coriander, carrot, caffeine, hamamelis, spirulina, salmon roe, It may be at least one selected from the group consisting of red pepper, turmeric, edelweiss, chamomile, lavender, peppermint, eucalyptus, lemon balm, oregano, tea tree, gold,

The wash-off type cosmetic composition is meant to include a component that can give a cosmetic effect to the skin in a short period of time, but must be subjected to a step of removing the cosmetic composition. Such a wash-off type cosmetic composition may contain a high content of plants, petals, tea leaves, raw materials, and solids, so that any substance exhibiting a skin-cosmetic effect can be carried.

In one embodiment of the present invention, the mask sheet may carry a wash-off type cosmetic composition.

At this time, the wash-off type cosmetic composition may include one or more kinds of raw materials selected from the group consisting of plants, tea leaves, petals, sugar, solids, and scrubbing agents. %. If the raw material is less than 0.001% by weight based on the whole cosmetic composition, the effect as an external preparation for skin is very poor. If it exceeds 50% by weight, there is a fear of skin safety and it is difficult to blend with other materials.

Here, the solid matter may include, for example, walnut shell powder, seed powder, grain powder, coffee powder, yoghurt protein, various vitamins, vegetable powder, and the like.

On the other hand, a scrubbing agent can be divided into a disintegrating scrubbing agent which is disintegrated or dissolved into smaller particles in use and a non-decomposing scrubbing agent which is swollen and not disintegrated in the medium. Examples of the disintegrating scrubbing agent include inorganic salts such as chlorides, carbonates, hydrogencarbonates, sulfates and phosphates of alkali metals or alkaline earth metals; Sugar (sugar); Carbonates, erythritol (4-carbon), traitol, arabitol (5-carbon), xylitol, ribitol, mannitol (6-carbon), sorbitol, galactitol, iditol, inositol, , Or sugar alcohols such as sugar alcohols of peat sugar; Other crystalline natural materials may be mentioned. Non-rusting scrubbing agents include natural scrubbing agents such as artificial scrubbing agents such as polyethylene, nutshell powder, fruit seed powder, carbon black, graphite, metal oxides such as silica, titania, zirconia, zinc oxide, Powder (for example, garnet powder).

For example, the wash-off type cosmetic composition includes a high-margin type cosmetic composition as a scouring agent.

By carrying the wash-off type cosmetic composition, the mask sheet according to the present invention has adhesiveness higher than that of the existing wash-off type mask pack, thereby improving the delivery power of the effective ingredient of the skin and providing an excellent cosmetic effect to the skin in a short time And it is possible to perform other work at the same time while attaching the mask sheet, thereby improving the convenience of the user.

In one embodiment of the present invention, the cosmetic composition may include at least one member selected from the group consisting of a sequestering agent, a moisturizer, a water-soluble thickener, an emulsifier stabilizer, a pH adjuster, a surfactant, a perfume and purified water.

In addition, the cosmetic composition may further contain preservatives, fatty acids, antioxidants, pigments, lipids and the like widely used in the art as additives.

As described above, the mask sheet of the present invention includes the base layer 21 impregnated with the cosmetic composition and the occlusion layer 22, so that the mask sheet can be used in a high humidity environment, thereby enhancing the convenience of the user, Even if it is buried in the mask sheet, the skin adhesion is excellent and the feeling of use is excellent. In addition, the cosmetic composition impregnated in the mask sheet of the present invention exhibits a high moisturizing and nutritive effect as compared with a mask sheet impregnated with conventional low-viscosity formulations, by using a formulation such as a high viscosity cream or gel.

Manufacturing method of mask sheet

The method for producing the mask sheet of the present invention is not particularly limited,

S1) preparing a base layer;

S2) laminating a closure layer on one side of the base layer;

S3) applying a wash-off type cosmetic composition to the other surface of the base layer.

When such a method is adopted, it is easy to use in a shower or bath, which is a high humidity environment, and it is easy to impregnate a mask sheet with a high viscosity formulation such as cream or gel. In addition, the cosmetic composition and the external substance do not adhere to portions other than the base layer, which is the skin contact surface, so that it is possible to manufacture a mask sheet that is easy to handle.

Hereinafter, a manufacturing method according to an embodiment of the present invention will be described in detail in stages.

In step S1), a base layer is prepared.

At this time, the material and shape of the base layer are as described above, and the base layer may be a commercially available material or may be directly manufactured and used

In the step S2), the cladding layer is laminated on one side of the base layer.

In the present invention, the laminating process may be to adhere a thin film to the base layer as described above. In addition, the laminating process may be performed several times using two or more types of microporous films.

The laminating process may be a dry laminating process or a wet laminating process, preferably a wet laminating process, but is not limited thereto. Here, the dry laminating process is to adhere the fiber material and the film using heat, and the wet laminating process is to adhere the film to the fiber material with an adhesive, followed by applying pressure to the fiber material.

As the material of the occlusion layer, a synthetic polymer, a natural polymer, or a combination thereof may be used as described above, and it is not particularly limited as long as it is a material usable for the laminating process.

The conditions of the laminating process for forming the occluding layer may be generally known methods and are not particularly limited. For example, the laminating temperature may be set at 10 to 150 ° C and the pressure may be 1 to 10 kgf / cm ² .

The occlusion layer may be formed by bonding the film onto the base layer, or by laminating the film on one side of the base layer. At this time, in order to facilitate bonding of the occlusion layer and the base layer, the above-mentioned adhesive may be applied on the base layer before bonding the occluding layer, and an occlusion layer may be formed thereon.

In the step S3), a wash-off type cosmetic composition is coated on the other side of the base layer. The method used in the related art can be used as a method of applying the cosmetic composition, and a highly viscous wash- The off-type cosmetic composition is not particularly limited as long as it is a method of sufficiently impregnating the base layer.

According to an embodiment of the present invention, a step of laminating a release film on a base layer such that one side of the base layer faces one side of a release film coated with a wash-off type cosmetic composition between steps S1) and S2) . The step of laminating a release film on the base layer may further include coating the cosmetic composition of the high viscosity wash-off type on the release film before impregnating the base layer.

At this time, the coating method is not particularly limited in the present invention, and for example, methods such as comma coating, reverse coating, slot die coating, spray coating, doctor blade and the like can be used.

The coating thickness of the wash-off type cosmetic composition is not particularly limited, but is preferably in the range of 100 to 5,000 mu m, more preferably 200 to 1000 mu m.

Next, in step S3), the cosmetic composition may be applied on the base layer prepared in step S1) on the wash-off type cosmetic composition coated on the release film.

When such a method is used, a high viscosity wash-off type cosmetic composition having poor flowability can be sufficiently applied to the base layer. In addition, it is preferable that the cosmetic composition can be selectively applied only to the skin-adhered surface.

In one embodiment of the present invention, the method may further include a step of folding the mask sheet so that the wash-off type cosmetic composition is not exposed to the outside after the step S3). Preferably, It is a way to stretch the mask sheet without overlapping the cosmetic composition on the hands, although some overlap. An example is a folded structure folded along the outline of the forehead and nose to form a half face.

The method of claim 1, further comprising the step of folding the mask sheet after the step (S3), whereby the wash-off type cosmetic composition impregnated in the base layer is not evaporated to the outside and the cosmetic composition is not applied to the hands .

On the other hand, when the wash-off type cosmetic composition immediately after preparation having the temperature of 30 to 80 ° C is used in the step S3), the impregnation of the cosmetic composition can be smoothly performed.

The mask sheet of the present invention has a structure in which the base layer impregnated with the wash-off type cosmetic composition and the occlusion layer are stacked in this order through the above-described manufacturing method. Therefore, when the mask sheet is handled, the base layer is not directly in contact with the hand, so it is convenient and hygienic. In addition, when the same manufacturing method as in the present invention is used, a formulation such as a gel having a high viscosity can be carried on the mask sheet, so that it is possible to manufacture a highly nutritious and highly moisturizing pack.

A cosmetic method using a mask sheet according to the present invention, comprising the steps of: applying the mask sheet to skin; Removing the mask sheet after a shower or bath; And a step of rinsing the skin on which the mask sheet has been applied with water.

At this time, it is convenient that the user removes the mask sheet after the completion of the shower or bath without taking the time to remove the mask sheet, and can perform other work while giving a cosmetic effect to the skin. In addition, the present invention provides a convenient beauty treatment method in which the skin is rinsed with water in order to remove substances remaining on the skin after handling the mask sheet or to relieve the stiffness to the skin, in a shower or bath.

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 scope and spirit of the invention as disclosed in the accompanying claims. Changes and modifications may fall within the scope of the appended claims.

[Example]

Manufacturing example  One: Wash - Off-type Cosmetics  Preparation of composition

As a wash-off type cosmetic composition to be impregnated into the base layer of the mask sheet, a gel having the composition shown in the following Table 1 was prepared.

ingredient Content (% by weight) One Purified water To 100 2 Disodium di-dithia (EDTA-2Na) 0.05 3 glycerin 5 4 Butylene glycol 5 5 Carbomer 0.2 6 Triethanolamine 0.13 7 Dry rose petals 5 8 Rose 0.05

<Manufacturing Method>

1) Mix raw materials 1 to 5 at room temperature while putting them in a manufacturing container.

2) 1) is slowly stirred and 6 is added to form a viscosity.

3) While mixing 2) slowly, mix 7 ~ 8 times and mix.

The viscosity of the prepared gel was measured by the following viscosity measuring instrument and measuring method. As a result, the viscosity of the gel was 30,000 cps.

<Viscosity Measurement Method>

1) Viscosity measuring instrument: BROOKFIELD RVDV-II + pro viscometer

2) Viscosity measurement Sample preparation: 100 g of the sample to be measured is put in a container and stored in a 30 ° C thermostat for at least 12 hours.

3) Measuring instrument conditions: Spindle Number 64, Spindle Speed 12 rpm, Measurement Time 2 min

4) The sample of 2) is loaded on the instrument of 1) set under condition 3), and the viscosity of the sample is measured by operating the instrument for 2 minutes.

Manufacturing example  2: Gomaj  Type Cosmetics  Preparation of composition

A gel having the composition shown in Table 2 below was prepared as a high-margin cosmetic composition to be impregnated into the base layer of the mask sheet. The cosmetic composition of the present invention is a cosmetic composition having a method of using a method of applying a cosmetic composition to the skin in order to remove waste products from the skin and then pushing the applied cosmetic composition as if pushing the herd to remove the dead skin of the skin Means a cosmetic composition.

ingredient Content (% by weight) One Purified water To 100 2 Disodium di-dithia (EDTA-2Na) 0.02 3 Butylene glycol 5 4 glycerin 2 5 cellulose 10 6 Spices 0.1

<Manufacturing Method>

1) Mix the raw materials 1 to 4 at room temperature while putting them in a manufacturing container.

2) 1) is slowly dispersed while slowly stirring 5 times at a slow rate.

3) 2) is slowly added while mixing 6 with stirring.

The viscosity of the prepared gel was measured by the same viscosity measuring apparatus and measuring method as in Production Example 1, and as a result, the viscosity of the gel was 28,300 cps.

Example  1: Manufacture of mask sheet

Cotton (60 gsm) hot on-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm and then, to the hydrophobic polyurethane layer to supplement the water-resistant laminated with 3 gsm to form a closed layer of the mask sheet .

Then, the wash-off type cosmetic composition prepared in Preparation Example 1 was applied onto the pure surface to prepare a mask sheet.

Example  2: Manufacture of mask sheet

Cotton (60 gsm) hot on-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm and then, to the hydrophobic polyurethane layer to supplement the water-resistant laminated with 3 gsm to form a closed layer of the mask sheet .

Separately, the wash-off type cosmetic composition prepared in Preparation Example 1 was applied onto a release film (PET film having a thickness of 20 탆), and the cosmetic composition was evenly coated with a thickness of 700 탆 using a comma coater (Ikeda, Japan) Respectively.

The prepared mask sheet was placed on the wash-off type cosmetic composition coated on the release film, and pressed at a constant pressure to impregnate the wash-off type cosmetic composition on the cotton face to prepare a mask sheet.

Example  3: Manufacture of mask sheet

Cotton (60 gsm) hot on-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm and then, to the hydrophobic polyurethane layer to supplement the water-resistant laminated with 3 gsm to form a closed layer of the mask sheet .

Then, the wash-off type cosmetic composition prepared in Preparation Example 1 was applied onto the pure cotton surface, and then folded along the outline of the forehead and nose to form a folded mask sheet in half face shape.

Example  4: Manufacture of mask sheet

Cotton (60 gsm) hot on-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm and then, to the hydrophobic polyurethane layer to supplement the water-resistant laminated with 3 gsm to form a closed layer of the mask sheet .

Then, the cosmetic composition of the hypermagent type prepared in Preparation Example 2 was coated on the pure surface to prepare a mask sheet.

The diameter of the micropores formed on the occluding layer of the mask sheet thus prepared was measured, and it was confirmed that the average micropores had a diameter of 22.04 μm. Thus, the mask sheet according to the present invention includes the occlusion layer in which the micropores are formed, so that it is confirmed that when the mask sheet is applied to the skin, it is possible to reduce the stiffness of the skin and prevent external foreign matter or water droplets from penetrating into the mask sheet.

The mask sheet thus prepared was easy to handle and hygienic because the wash-off type or high-margin type cosmetic composition impregnated in the base layer owing to the occlusion layer did not appear on the outside. In addition, since a gel having a high viscosity is used as a wash-off type cosmetic composition, it has high moisturizing power as compared with a conventional mask sheet and can be used in a high humidity environment, thereby enhancing convenience for the user, The skin adhesion was excellent and the feeling of use was excellent.

As shown in Table 3 below, a comparative example was prepared to confirm the moisturizing effect and the exfoliation effect.

division Comparative Example  One Comparative Example  2 Comparative Example  3 Comparative Example  4 Cosmetic composition 5% rose petals The wash-off type cosmetic composition prepared in Preparation Example 1 The cosmetic composition of the present invention prepared in Preparation Example 2 The cosmetic composition of the present invention prepared in Preparation Example 2 mask sheet - Sheets made of paper - Sheets made of paper

Experimental Example  One: Moisturizing effect

In order to examine the skin moisturizing effect of the above Comparative Examples and Examples, 20 test subjects (male 7 female, female female) in 20 to 30 year old adults were allowed to apply the test material on the inner surface of the drop bottom.

The moisture content of the skin at 30 minutes after cleansing, 30 minutes after cleansing, and 1 hour after cleansing was measured three times with a corneometer (Corneometer CM825 (C + K GmbH, Germany)) immediately after cleansing The averages were obtained and the results are shown in Table 4 below. The coneometer is a device that measures the degree of moisture present in the epidermis of the skin by measuring and quantifying the electrical conductivity of the skin by moisture using a sensor.

Electrical conductivity (mean ± standard deviation, ACU) division Before application Immediately after washing for 30 minutes 30 minutes after cleansing 1 hour after cleansing Comparative Example 1 26.73 + - 4.99 42.31 + - 5.37 31.33 + - 4.01 29.85 ± 3.90 Comparative Example 2 29.31 + - 4.70 53.77 ± 5.10 38.92 + - 4.87 34.46 ± 2.92 Example 1 28.80 ± 3.98 60.04 + - 4.49 50.82 ± 5.11 45.57 + - 4.05

As can be seen from Table 4, the skin moisture content tended to increase not only immediately after cleansing but also after 30 minutes and 1 hour as compared with Comparative Examples 1 and 2 when Example 1 according to the present invention was used. Accordingly, it can be seen that the mask sheet according to the present invention effectively preserves the moisture of the skin after use and has excellent skin moisturizing power.

Thread  2: Mass reduction effect

To investigate the effect of reducing the mass of each of the comparative examples and the examples, 20 test subjects (male 7, female 13) in healthy 20 to 30 year old adults were applied to the inner surface of the drop bottom.

(Black tape, D-squame) was used to collect the keratin materials, and then the Charmview scope (Moritex, Japan) was applied to the areas coated with the non-woven area, Comparative Examples 1 and 2 and Example 1 Table 5 shows the results of calculating the reduction rate of keratin in comparison with the non-coated area by calculating the area (pixel number) of the keratin attached to the black tape.

division Comparative Example 1 Comparative Example 2 Example 1 Percent reduction of horny area (%) 12.22 19.35 26.72

As can be seen from the above Table 5, when the Example 1 according to the present invention was used, the area of keratinous matter collected by black tape tended to decrease as compared with Comparative Examples 1 and 2. Therefore, it can be seen that the beauty kit according to the present invention is effective in relieving the mass of the skin surface effectively after use to smooth the skin.

Experimental Example  3: Usability and satisfaction rating

In order to compare convenience and user satisfaction in the use of the above comparative examples and examples, 30 healthy women in their 20s and 30s were allowed to use the test material directly on the face.

The ease of use, the ease of removing keratin and the smoothness of skin after use were evaluated for the subjects of Example 4, Comparative Example 3 and Comparative Example 4 using the following criteria. The average values of the results are shown in Table 6 below.

<Usage>

Each of Example 4, Comparative Example 3, and Comparative Example 4 was applied or applied to the face, and after five minutes, the skin was rubbed by hand as it was being rubbed.

<Usability Evaluation Standard>

1 point: Very inconvenient to use

3 points: Somewhat inconvenient to use

5 points: Average

7 points: Somewhat convenient to use

9 points: Very convenient to use

<Estimation of ease of removing keratin>

1 point: very difficult to remove keratin

3 points: difficult to remove keratin

5 points: Average

7 points: Easily removed keratin

9 points: Very easy removal of keratin

<Evaluation criteria of skin softness after use>

1 point: similar to skin before use

3 points: It is somewhat soft compared to before use

5 points: Smoother than before use

7 points: Smooth and smooth skin before use

9 points: The skin is so soft compared to before use, it feels like baby skin

division Example 4 Comparative Example 3 Comparative Example 4 Ease of Use 7.40 4.07 2.93 Ease of removing keratin 6.47 6.53 6.13 Softness of skin after use 7.60 5.47 4.07

As can be seen from the above Table 6, the use of Example 4 according to the present invention showed ease of removing keratin, which is almost the same as Comparative Examples 3 and 4. On the other hand, regarding the ease of use and satisfaction with the degree of softness of the skin after use, Example 4 showed a relatively higher score than Comparative Examples 3 and 4. Accordingly, the mask sheet according to the present invention can improve the convenience of use by enhancing user's convenience by maintaining ease of removing keratin, while using the cosmetic composition for general exfoliation, and more effectively hydrating the skin during use And it is effective for the skin softness afterwards.

Experimental Example  4: Adhesion evaluation

In order to evaluate the adhesion of the comparative example and the example, 20 adult women were applied to the face of each of Example 1 and Comparative Example 2, and skin adhesion was evaluated according to the following adhesion evaluation criteria, .

&Lt; Adhesion evaluation standard &

1 point: Not very good

3 points: Not good

5 points: Average

7 points: Good

9 points: Very good

division Example 1 Comparative Example 2 Adhesion 7.4 3.7

As can be seen from the above Table 7, when Example 1 according to the present invention was used, a higher score was obtained in terms of adhesion force that the user felt when compared to Comparative Example 2 of the cotton sheet material. Therefore, it can be seen that the mask sheet according to the present invention has an excellent adhesion property at the time of use as compared with a general mask sheet material including a pure surface.

10: release film
20: Mask sheet
21: Base layer
22: Closed layer

Claims (17)

A base layer impregnated with a wash-off type cosmetic composition; And
And a blocking layer which is laminated on one side of the base layer and is waterproof so that external water droplets are not penetrated into the base layer.
mask sheet. The method according to claim 1,
Wherein the base layer is a nonwoven fabric, a cotton fabric, a woven fabric, a paper, a foam or a sponge. The method according to claim 1,
Wherein the material of the base layer is at least one selected from the group consisting of viscose rayon, modal, lyocell, tencel, cupra, polyester, polypropylene, polyethylene terephthalate, nylon, cotton, hemp, pulp, Sheet. The method according to claim 1,
Wherein the base layer has a water content of 100 to 200%. The method according to claim 1,
Wherein the thickness of the base layer is 20 占 퐉 to 2 mm. The method according to claim 1,
Wherein the thickness of the occluding layer is 10 to 500 m. The method according to claim 1,
The occlusion layer may be formed of at least one selected from the group consisting of a fluorine-based, silicone-based, urethane-based, Teflon-based, polyacrylonitrile (PAN), polyethylene oxide (PEO), polyethylene terephthalate (PET), polystyrene (PS), polyvinylidene fluoride (PU), polyvinyl propylene (PVP), polyvinyl alcohol (PVA), nylon, polyethersulfone (PES), polyetherimide (PEI), poly (styrene-butadiene- styrene) (SBS), carboxymethylcellulose (CMC) polyethylene (PE), ethylene vinyl acetate resin, and styrene-isoprene-styrene block copolymer. The method according to claim 1,
Wherein the average pore diameter of the occluding layer is 0.4 nm to 100 탆. The method according to claim 1,
The laminate of two or more layers constituting the mask sheet is made of at least one adhesive selected from the group consisting of an acrylic adhesive, a rubber adhesive, a polyurethane adhesive, a polyester adhesive, a silicone adhesive, and a hot-melt adhesive Mask sheet. The method according to claim 1,
Wherein the wash-off type cosmetic composition has a viscosity of 5,000 to 200,000 cps. The method according to claim 1,
Wherein the wash-off type cosmetic composition comprises at least one raw material selected from the group consisting of plants, tea leaves, petals, sugar, and a scrub agent;
Wherein the raw material comprises 0.001 to 50% by weight of the total wash-off type cosmetic composition. The method according to claim 1,
Wherein the mask sheet further comprises a release film laminated on the outer surface of the base layer carrying the wash-off type cosmetic composition. S1) preparing a base layer;
S2) laminating a closure layer on one side of the base layer;
S3) applying a wash-off type cosmetic composition to the other surface of the base layer. 14. The method of claim 13,
Wherein the wash-off type cosmetic composition comprises at least one raw material selected from the group consisting of plants, tea leaves, petals, sugar, and a scrub agent;
Wherein the raw material comprises 0.001 to 50% by weight of the total wash-off type cosmetic composition. 14. The method of claim 13,
Further comprising laminating a release film on the base layer such that one side of the base layer faces one side of the release film coated with the wash-off type cosmetic composition between steps S2) and S3) Way. 14. The method of claim 13,
Further comprising the step of folding the mask sheet so that the wash-off type cosmetic composition is not exposed to the outside after the step (S3). A cosmetic method using a mask sheet according to any one of claims 1 to 12,
Applying the mask sheet to the skin;
Removing the mask sheet after a shower or bath; And
And rinsing the skin to which the mask sheet has been applied with water.

Images