KR20190037437A - Mask pack and prepartion method thereof - Google Patents

Abstract

The present invention relates to a mask pack. The mask pack of the present invention is easy to be used since the content is not caught on hands during using, thereby being hygienic and having excellent skin adhesion and feeling. Also, the mask pack is impregnated with a highly viscous formulation such as cream, and thus can be used as a high-moisture and high-nutrition pack. The mask pack comprises a mask sheet which has only one surface impregnated with the cosmetic content.

Description

[0001] MASK PACK AND PREPARATION METHOD THEREOF [0002]

The present invention relates to a mask pack excellent in feeling of use.

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 mask sheet is a product in which a cosmetic solution containing a moisturizing agent, a whitening agent, a wrinkle improving agent, 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.

In the conventional mask sheet thus produced, a considerable amount of contents are contained not only in the substrate but also in the packaging bag. In addition, both sides of the mask sheet are not particularly distinguished, but are all wetted with the contents. Such a mask sheet is problematic in that all of the injected contents are evaporated rather than being supplied to the skin or remain in the packaging bag and lose a considerable amount, and the content of the mask sheet is buried in the hands and the contents of the low- There is a problem that the feeling of use is lowered.

In order to solve the above problems, the Korean Utility Model Registration No. 20-0464720 discloses a facial tissue sheet impregnated with lotion water, which is detachably attached to one side of a packaging film to integrally form a packaging film, Pack. Since the mask pack is a method in which the outer edge portion of the packaging film stretched is held by hand, the content can be prevented from being stained on the hand, and evaporation of the lotion can be prevented by the packaging film. However, the mask pack has a problem in that the flexibility of the face sheet is reduced due to the packaging film and the skin adhesion is deteriorated. In addition, this method has a disadvantage in that the amount of impregnation of the contents is limited.

Therefore, it is required to develop a new mask sheet which is not hygienic and easy to handle, has good skin adhesion, good feeling of use, and can use a high-viscosity formulation as its contents.

Korean Registered Utility Model No. 20-0464720, unfoldable integral packing mask pack

The inventors of the present invention completed the present invention upon studying a mask pack in which contents are not handled during handling and which is easy to use and in which the contents of a high viscosity formulation can be carried.

Accordingly, it is an object of the present invention to provide a mask pack exhibiting an improved feeling of use.

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

In order to achieve the above object, the present invention provides a mask pack comprising a mask sheet impregnated on one side only of a cosmetic composition,

In the mask sheet,

A base layer impregnated with the cosmetic composition;

A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And

And a barrier supplement layer which complements the water solubility and bioactivity of the barrier layer,

The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Wherein the mask layer is formed on two or more layers on the outer surface of the barrier layer.

The blocking supplement layer may be formed of two or more layers, and one layer may be a water repellent layer and one layer may be a oil repellent layer.

The base layer may be nonwoven, woven, paper, foam or 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 5000%.

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

The barrier layer may be composed of nanofibers.

The barrier layer may further include at least one water-repellent polymer selected from the group consisting of a water-repellent polyolefin, a water-repellent polyurethane, a water-repellent polyvinylidene fluoride, and a Teflon-based resin coated on the nanofibers.

The water-repellent polymer may include 0.01 to 5% by weight of the total weight of the barrier layer.

The mass per unit area of the barrier layer may be 1 to 50 gsm.

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 blocking supplement layer may be a waterproof film or a coating layer formed by coating one or more materials selected from the group consisting of fluorine, silicone, urethane, and Teflon.

The barrier supplement layer may be formed of titanium oxide (TiO ₂ ), zinc oxide (ZnO), iron oxide (Fe ₂ O ₃ ), zirconium oxide (ZrO ₂ ), silicon dioxide (SiO ₂ ), manganese oxide (MnO), aluminum oxide (Al ₂ O ₃ ), cerium oxide (CeO ₃ ), mica, silica, mica, talc, and kaolin have.

The inorganic material may be included in an amount of 0.01 to 0.5% by weight based on the total weight of the blocking complementary layer.

The mass per unit area of the blocking complementary layer may be 0.1 to 20 gsm.

The viscosity of the cosmetic composition impregnated in the base layer may range from 5,000 to 200,000 cps.

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) a base layer impregnated with the cosmetic composition;

A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And

And a barrier supplement layer which complements the water solubility and bioactivity of the barrier layer,

The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Preparing a mask sheet having two or more layers on the outer surface of the barrier layer; And

S2) impregnating the base layer with a cosmetic composition.

In addition, in the step S1), the barrier supplement layer may be formed of one or more layers between the base layer and the barrier layer.

In addition, in the step S1), the barrier supplement layer may be formed on the outer surface of the barrier layer in two or more layers.

The method may further include a step of laminating a release film on the base layer such that one side of the release layer faces the one side of the release film coated with the cosmetic composition between steps S1) and S2).

And then folding the mask sheet so that the cosmetic composition is not exposed to the outside after step S2).

The mask pack of the present invention is easy to use because its contents are not caught on the hands during handling, is hygienic, has excellent skin adhesion and feeling. Also, the mask pack may be impregnated with a highly viscous formulation such as cream, and used as a high moisture and high nutrition pack.

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

The present invention relates to a mask pack comprising a mask sheet impregnated on one side only of a cosmetic composition,

The mask sheet comprises: a base layer impregnated with a cosmetic composition; A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And a blocking complementary layer that complements the solubility of the blocking layer and the ability to form the blocking layer, wherein the blocking complementary layer is formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Wherein the mask layer is formed on two or more layers on the outer surface of the barrier layer.

In the mask pack of the present invention, the cosmetic composition is impregnated only on one side of the mask sheet, and the mask sheet is folded so that it is protected by a release film or the cosmetic composition is not exposed to the outside. . In addition, although the mask sheet includes the barrier layer and the barrier supplement layer, the mask sheet is excellent in skin adhesion and exhibits a pleasant feeling of use. Also, unlike the conventional mask pack, the mask pack of the present invention is impregnated with a high-viscosity formulation such as a cream, and can provide a high moisturizing and nutritive effect.

1 is a cross-sectional view of a mask pack according to an embodiment of the present invention. 1, the mask pack of the present invention includes a mask sheet 20, which includes a base layer 21, a blocking supplement layer 22 and a barrier layer 23 . The blocking complementary layer 22 includes a first blocking complementary layer 221 and a second blocking complementary layer 222. In addition, the cosmetic composition is impregnated in the base layer 21 and does not come out of the barrier layer 23.

2, the mask sheet may further include a release film 10 laminated on the outer surface of the base layer 21. By including the release film, the impregnated cosmetic composition is not buried in the user's hands , It may 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, Is peeled from the mask sheet when the user uses the mask pack 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 the cosmetic composition is impregnated and attached to the skin.

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

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

The mass per unit area of the base layer 21 is not particularly limited, but may be 10 to 150 gsm (g / m ² ). In addition, the water content of the base layer 21 may be in a range of 100 to 5000% 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.

The mask sheet 20 of the present invention includes a barrier layer 23 for blocking the outflow of the cosmetic composition impregnated in the above-mentioned base layer. The barrier layer 23 prevents the cosmetic composition impregnated in the base layer 21 from flowing out or evaporating from the base layer 21 and preventing the contents from being deposited on the surface of the mask sheet 20 . At this time, it is preferable that the barrier layer 23 is formed in a thin film form so as not to deteriorate the inherent flexibility of the base layer 21.

In the present invention, the barrier layer 23 may be made of nanofibers. Here, the term " nanofiber " means a fiber having a single fiber diameter of 1 to 500 nm by number average. Such nanofibers exhibit excellent adhesion at the time of bonding to the base layer 21 and are suitable for use as a material of the barrier layer 23 since they can be made of a thin film.

The nanofibers are prepared by electrospinning. Electrospinning is a method in which a polymer solution or polymer in a molten state is ejected from a nozzle by applying a high voltage (for example, 10 to 60 kV) to spin the polymer in a fiber form. Since the electrospinning method uses a polymer solution or a polymer in a molten state as a raw material, almost all kinds of fiber materials can be used.

The material of the nanofiber is not particularly limited as long as it is an electrospun material, and synthetic polymers, natural polymers, or a combination thereof can be used. Specifically, the material of the barrier layer may be at least one selected from the group consisting of polyacrylonitrile (PAN), polyethylene oxide (PEO), polyethylene terephthalate (PET), polystyrene (PS), polyvinylidene fluoride (PVDF) (PVA), nylon, polyethersulfone (PES), polyetherimide (PEI), poly (styrene-butadiene-styrene) (SBS), and carboxymethylcellulose (CMC) , And preferably at least one selected from the group consisting of polyacrylonitrile, polyvinylidene fluoride, and polyurethane can be used.

In the present invention, the barrier layer 23 preferably has water repellency and oil repellency so as to prevent the cosmetic composition from being transferred and to exhibit a blocking effect. That is, the barrier layer may be made of a water-repellent and oil-repellent component, or a water-repellent and oil-repellent component may be coated on a substrate having little or no water-repellent and oil-repellent components.

According to an embodiment of the present invention, the barrier layer 23 may be a nanofiber sheet prepared by including a water-repellent polymer applied to a nanofiber. At this time, examples of the water-repellent polymer include, but are not limited to, water repellent polyolefin, water repellent polyurethane (for example, fluorine-containing polyurethane), water repellent polyvinylidene fluoride, and Teflon resin. The water-repellent polymer may be included in the range of 0.01 to 5 wt%, or 0.1 to 2 wt% of the total weight of the barrier layer.

The barrier layer 23 of the present invention is preferably formed in the form of a thin film so as to serve as a barrier film without deteriorating the flexibility of the base layer 21. Specifically, the barrier 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 barrier layer is less than 1 gsm, penetration 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.

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 includes a base resin such as ethylene-vinyl acetate copolymer (EVA), polyethylene (PE), polypropylene (PP), SIS, polyester, polyamide, polyurethane, (Paraffin, aromatic oil, etc.), fillers (such as calcium carbonate, crayon, and the like), a filler (e.g., 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 barrier-compensating layer 22 of the present invention is intended to complement the ability of the barrier layer 23 to remove the water, and to prevent the contents inside the mask sheet from being exposed to the outside, It is preferable that it is formed as a thin film, and it is preferable not to hinder the air permeability of the sheet. For example, the blocking supplement layer 22 may have a mass per unit area of 0.1 to 20 gsm.

The blocking supplement layer 22 may be a waterproof film or a coating layer coated with at least one material selected from the group consisting of fluorine, silicon, urethane, and Teflon. Preferably, the blocking supplement layer 22 may impart a water repellency and a footing ability to a urethane coating layer having hydrophobic or hydrophilic properties.

The blocking supplement layer 22 may be formed of titanium oxide (TiO ₂ ), zinc oxide (ZnO), iron oxide (Fe ₂ O ₃ ), zirconium oxide (ZrO ₂ ), or the like, which makes the contents inside the mask sheet non- At least one inorganic material selected from the group consisting of silicon dioxide (SiO ₂ ), manganese oxide (MnO), aluminum oxide (Al ₂ O ₃ ), cerium oxide (CeO ₃ ), mica, silica, mica, talc, , And preferably titanium oxide or zinc oxide.

In this case, the inorganic material may be included in an amount of 0.01 to 0.5% by weight based on the total weight of the blocking supplement layer 22. If the inorganic material is contained in an amount of less than 0.01% by weight, the water repellent and oil- If it is contained in an amount of more than 10% by weight, flexibility of the entire mask sheet may be deteriorated.

The pattern may be transferred or printed on the surface of the blocking complementary layer 22, that is, the surface not bonded to the blocking layer. By transferring or printing the pattern onto the surface of the blocking complementary layer 22, Of the contents can be provided without being exposed to the outside. At this time, the transfer or printing method is not particularly limited, and a method known in the art can be used.

Further, as shown in Fig. 1, the mask sheet of the present invention may include two or more layers of barrier-restricting layers. Since the blocking supplement layer is formed of two or more layers, the water repellent or oil repellent component contained in the blocking layer can be prevented from flowing out or being evaporated. As shown in FIG. 1, the first blocking complementary layer 221 is formed on the outer surface of the barrier layer 23, And the second blocking complementary layer 222 can be performed so that the water repellent component of the blocking layer 23 does not flow out or evaporate.

The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Or two or more layers may be formed on the outer surface of the barrier layer.

The blocking supplement layer is formed in at least one layer between the base layer and the barrier layer so that the cosmetic composition impregnated in the base layer is prevented from being evaporated through the barrier layer to evaporate, And can prevent the active ingredient from mixing with the cosmetic composition.

In addition, the barrier-restraining layer may be formed in at least one layer between both the base layer and the barrier layer and on the outer surface of the barrier layer, thereby preventing the water-repellent function or foot-printable component contained in the barrier layer from being mixed with the cosmetic composition, It is possible to compensate for evaporation of the cosmetic composition to the outside.

In addition, since the blocking complementary layer is formed in two or more layers on the outer surface of the blocking layer, the water repellent component of the blocking layer does not leak to the outside, the oil-repellent component of the blocking layer does not leak to the outside, .

In one embodiment of the present invention, the blocking complementary layer may be layered on one surface and / or the other surface of the selected one of the base layer and the blocking layer. Preferably, the order of lamination may vary depending on whether the base layer, the first blocking complementary layer, the blocking layer or the second blocking complementary layer are laminated in order, or the composition of the cosmetic composition or barrier layer impregnated in the base layer. Preferably, the barrier layer is laminated so as to compensate for the water-repellant ability or the foot-discharging ability of the barrier layer.

Further, the two or more barrier-restricting layers may not be continuously laminated or continuously laminated. For example, the base layer 21, the barrier layer 23, the first blocking complementary layer 221, and the second blocking complementary layer 222 may be stacked in this order as shown in FIG. 3, The complementary layer 221 and the second blocking complementary layer 222 physically lengthen the path through which the cosmetic composition is evaporated to the outside, thereby forming a bilayer. Accordingly, the amount of the cosmetic composition to be evaporated to the outside can be remarkably lowered.

The formulation of the cosmetic composition to be 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.

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, convenience of use is also excellent because the contents do not flow down from the mask sheet during circulation or use of the mask pack.

At this time, the viscosity of the 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 cosmetic composition are not particularly limited in the present invention and include skin moisturizing agents such as fatty alcohols, waxes, oils and glycerin, wrinkles, skin whitening, ultraviolet rays, anti-aging, moisture supply, An active ingredient, 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 retinol, retinyl palmitate, retinyl acetate, retinoic acid, coenzyme quetin, elastin, collagen, hyaluronic acid, ceramide, collagen, caffeine, chitosan, ascorbic acid, ascorbyl glucoside, It may be at least one or more selected from the group consisting of biscotti, 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 aloe, green tea, ginseng, red ginseng, pearl, wood vinegar, ginkgo leaf, propolis, mulberry leaf, silkworm, snail slime, kakaduplum, camucam, yashiyama, squalane, caviar, broccoli, It is a place where it is possible to have a lot of fruits and vegetables such as asparagus, raspberry, raspberry, raspberry, mugwort, chrysanthemum, cherry, mangosteen, guacamole, mangosteen, guava, corn, carrot, caffeine, hammamelis, spirulina, It may be at least one selected from the group consisting of mung bean, edelweiss, chamomile, lavender, peppermint, eucalyptus, lemon balm, oregano, tea tree, gold,

In addition, the cosmetic composition may further contain preservatives, thickeners, perfumes, surfactants and the like widely used in the art as additives.

As described above, the mask pack of the present invention includes the mask sheet 20 impregnated only on one side of the cosmetic composition, so that the contents are not buried in the hand while the mask pack is being handled, which is easy to use. In addition, the mask pack of the present invention shows high moisturizing and nutritive effect as compared with a conventional mask pack impregnated with a low-viscosity formulation, using a formulation such as a high-viscosity cream as a cosmetic composition to be impregnated.

Manufacturing method of mask pack

The method of manufacturing the mask pack of the present invention is not particularly limited,

S1) a base layer impregnated with the cosmetic composition;

A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And

And a barrier supplement layer which complements the water solubility and bioactivity of the barrier layer,

The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Preparing a mask sheet having two or more layers on the outer surface of the barrier layer; And

S2) impregnating the base layer with the cosmetic composition.

When such a method is adopted, it is easy to impregnate the mask sheet with a high-viscosity formulation such as a cream. In addition, the cosmetic composition does not adhere to portions other than the base layer, which is the skin contact surface, so that it is possible to manufacture a mask pack which is easy to handle.

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

The base layer impregnated with the cosmetic composition in the step S1); A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And a blocking complementary layer that complements the solubility of the blocking layer and the ability to form the blocking layer, wherein the blocking complementary layer is formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; A mask sheet formed on two or more layers on the outer surface of the barrier layer is prepared.

The material and the 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.

The barrier layer may be composed of nanofibers as described above. In this case, the nanofiber barrier layer may be prepared by electrospinning.

In the electrospinning process, a polymer solution or a molten polymer may be used as described above. The polymer solution is composed of a nano-fiber raw material polymer, a water-repellent polymer, and a solvent, and the solvent is not particularly limited as long as it can dissolve the raw polymer and the water-repellent polymer. In one embodiment of the present invention, a polymer solution prepared by dissolving 14.5% by weight of polyurethane and a trace amount of fluorine-containing polyurethane as a water repellent agent in methyl ethyl ketone as a solvent was used as an electrospinning solution.

The conditions of the electrospinning process for forming the blocking layer can be generally known methods and are not particularly limited. For example, the electrospinning can be performed at a temperature of 20 to 25 ° C, a humidity of 20 to 40%, and a voltage of 40,000 to 55,000 V.

In the present invention, the electrospinning method is not particularly limited, and any one of electrospinning, air-electrospinning (AES), centrifugal electrospinning, and flash-electrospinning Can be used.

The blocking layer may be formed by bonding the prepared nanofiber layer on the base layer or the blocking complementary layer, or may be formed by directly electrospinning the polymer solution on one side of the base layer or the blocking complementary layer.

As described above, the barrier supplement layer can be complemented with the barrier layer by the coating layer.

In the step S1), the blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer, and the blocking complementary layer may be formed of two or more layers on the outer surface of the blocking layer. When the mask sheet is laminated in this manner, the path through which the cosmetic composition physically evaporates outward becomes longer, as described above, and a double film is formed.

The method of forming the coating layer on the barrier layer is not particularly limited. For example, a method of laminating a waterproof film and a method of coating a water repellent agent on the barrier layer by a conventional coating method may be used.

In the step S2), the base layer is impregnated with the cosmetic composition. The impregnating method may be a method used in the related art, and a highly viscous cosmetic composition having poor flowability may be sufficiently impregnated in the base layer Method, it is not particularly limited.

In one embodiment of the present invention, a step of laminating the release film on the base layer such that one side of the base layer faces one side of the release film coated with the cosmetic composition may be further included between steps S1) and S2) . The step of laminating a release film on the base layer may further include coating the release layer on the release film prior to impregnating the base layer with the high viscosity cosmetic composition.

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 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 S2), the mask sheet prepared in step S1) may be placed on the cosmetic composition coated on the release film to impregnate the cosmetic composition.

When such a method is used, a highly viscous cosmetic composition having poor flowability can be sufficiently impregnated in the base layer. In addition, the cosmetic composition can be selectively impregnated only on the skin-adhered surface, which is preferable.

In one embodiment of the present invention, the method may further include a step of folding the mask sheet so that the cosmetic composition is not exposed to the outside after the step S2). Preferably, the mask layer is partially overlapped with one side of the base layer impregnated with the cosmetic material, The mask sheet can be spread without the cosmetic composition being applied to the skin. An example would be a structure folded along the outline of the forehead and nose and folded into half the shape of the face.

The step of S2) may further comprise folding the mask sheet so that the cosmetic composition impregnated in the base layer is not evaporated to the outside and the cosmetic composition may not be applied to the hands because the cosmetic composition is not present on the surface.

On the other hand, when the cosmetic composition immediately after preparation having the temperature of 30 to 80 캜 is used in the step S2), the impregnation of the cosmetic composition can be smoothly performed.

In the mask pack of the present invention, the base layer and the barrier layer impregnated with the cosmetic composition are laminated in this order, and have a structure including two or more barrier-compensating layers. Therefore, when the mask pack is handled, the base layer does not directly touch the hand, so it is convenient and hygienic. Further, when the same manufacturing method as in the present invention is used, it is possible to carry a formulation such as cream having a high viscosity onto the mask pack, thus making it possible to manufacture a highly nutritious and highly moisturizing pack.

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]

Production Example 1: Preparation of cosmetic composition

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

ingredient Content (% by weight) One Stearic acid 2 2 Glyceryl stearate 2 3 Cetearyl alcohol 0.5 4 Hydrogenated polydecene 8 5 Pentaerythrityl tetraisostearate 3 6 Coco-caprylate / caprate 3 7 Deionized water To 100 8 glycerin 5 9 Arginine 0.65

<Manufacturing Method>

1) Raw materials 1 to 6 are heated to 75.

2) Put raw materials from 7 to 9 in a separate manufacturing container and warm to 90.

3) Mix the above 1) into the production container of 2).

4) Cool rapidly until 30, and do not stir while cooling.

The viscosity of the prepared cream was measured by the following viscosity measuring instrument and measuring method, and the viscosity of the cream was found to be 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 thermostat for 30 hours for 12 hours or more.

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

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

Example  1: Manufacture of mask pack

Viscose rayon (viscose rayon), and PET (weight ratio 8: 2) -PET rayon spun lace (60 gsm) on a nonwoven fabric comprising hot-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm, and then electrospun A mask sheet was prepared by forming a 6 gsm nanofiber barrier layer. At this time, the electrospinning solution used was a polymer solution prepared by dissolving methyl ethyl ketone 75 wt% as a solvent, 14.5 wt% polyurethane and 3 wt% fluorine-containing polyurethane as a water repellent agent, Conditions were 20 ~ 25 ℃, 20 ~ 40% humidity and 40,000 ~ 55,000V.

To complement the water-repellent function, a hydrophilic polyurethane layer was laminated on an electrospinning sheet in an amount of 3 gsm, and a hydrophilic polyurethane layer containing 0.15% of TiO ₂ was further added and laminated on a hydrophilic polyurethane layer having a fluid- And finally laminated with an adhesive to produce a sheet.

Then, the cosmetic composition prepared in Preparation Example 1 was applied onto a rayon-PET spunlaced nonwoven fabric to prepare a mask pack.

Example 2: Preparation of mask pack

Viscose rayon (viscose rayon), and PET (weight ratio 8: 2) -PET rayon spun lace (60 gsm) on a nonwoven fabric comprising hot-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm, and then electrospun A mask sheet was prepared by forming a 6 gsm nanofiber barrier layer. At this time, the electrospinning solution used was a polymer solution prepared by dissolving methyl ethyl ketone 75 wt% as a solvent, 14.5 wt% polyurethane and 3 wt% fluorine-containing polyurethane as a water repellent agent, Conditions were 20 ~ 25 ℃, 20 ~ 40% humidity and 40,000 ~ 55,000V.

To complement the water-repellent function, a hydrophilic polyurethane layer was laminated on an electrospinning sheet in an amount of 3 gsm, and a hydrophilic polyurethane layer containing 0.15% of TiO ₂ was further added and laminated on a hydrophilic polyurethane layer having a fluid- And finally laminated with an adhesive to produce a sheet.

Separately, the cosmetic composition prepared in Preparation Example 1 was coated on a release film (PET film having a thickness of 20 占 퐉), and the cosmetic composition was evenly coated to a thickness of 700 占 퐉 using a comma coater (Ikeda, Japan).

The prepared mask sheet was placed on the cosmetic composition coated on the release film, and pressed at a constant pressure to impregnate the nonwoven fabric with the cosmetic composition to prepare a mask pack.

Example 3: Preparation of mask pack

Viscose rayon (viscose rayon), and PET (weight ratio 8: 2) -PET rayon spun lace (60 gsm) on a nonwoven fabric comprising hot-melt polyurethane adhesive (Henkel, Purmelt ^®) coated with 1 gsm, and then electrospun A mask sheet was prepared by forming a 6 gsm nanofiber barrier layer. At this time, the electrospinning solution used was a polymer solution prepared by dissolving methyl ethyl ketone 75 wt% as a solvent, 14.5 wt% polyurethane and 3 wt% fluorine-containing polyurethane as a water repellent agent, Conditions were 20 ~ 25 ℃, 20 ~ 40% humidity and 40,000 ~ 55,000V.

To complement the water-repellent function, a hydrophilic polyurethane layer was laminated on an electrospinning sheet in an amount of 3 gsm, and a hydrophilic polyurethane layer containing 0.15% of TiO ₂ was further added and laminated on a hydrophilic polyurethane layer having a fluid- And finally laminated with an adhesive to produce a sheet.

Then, the cosmetic composition prepared in Preparation Example 1 was coated on the rayon-PET spunlaced nonwoven fabric, and then folded along the outline of the forehead and nose to form a folded mask pack in half face shape.

The mask packs of Examples 1 to 3 prepared as described above were easy to handle and hygienic because the cosmetic composition impregnated into the base layer did not appear on the outside because of the barrier layer and the barrier supplement layer. In addition, high viscosity cream was used as a cosmetic composition, and it showed high moisturizing power as compared with the conventional mask pack. Air permeability was ensured even though it contained a barrier layer and a barrier supplement layer. .

10: release film
20: Mask sheet
21: Base layer
22: blocking complementary layer
221: first blocking complementary layer
222: second blocking complementary layer
23:

Claims (22)

A mask pack comprising a mask sheet impregnated on one side only of a cosmetic composition,
In the mask sheet,
A base layer impregnated with the cosmetic composition;
A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And
And a barrier supplement layer which complements the water solubility and bioactivity of the barrier layer,
The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Wherein the mask layer has two or more layers formed on the outer surface of the barrier layer. The method according to claim 1,
Wherein the blocking supplement layer is formed of two or more layers, and one layer is a water repellent layer and one layer is a oil repellent layer. The method according to claim 1,
Wherein the base layer is a nonwoven 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, pack. The method according to claim 1,
Wherein the base layer has a water content of 100 to 5000%. 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 barrier layer is made of nanofibers. 8. The method of claim 7,
Wherein the barrier layer further comprises at least one water-repellent polymer selected from the group consisting of a water-repellent polyolefin, a water-repellent polyurethane, a water-repellent polyvinylidene fluoride, and a Teflon-based resin coated on the nanofibers. 9. The method of claim 8,
Wherein the water-repellent polymer is contained in an amount of 0.01 to 5% by weight based on the total weight of the barrier layer. The method according to claim 1,
And the mass per unit area of the blocking layer is 1 to 50 gsm. 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 pack. The method according to claim 1,
Wherein the blocking supplement layer is a coating layer formed by coating at least one material selected from the group consisting of a waterproof film, fluorine-based, silicone-based, urethane-based, and Teflon-based. The method according to claim 1,
The barrier supplement layer may be formed of titanium oxide (TiO ₂ ), zinc oxide (ZnO), iron oxide (Fe ₂ O ₃ ), zirconium oxide (ZrO ₂ ), and dioctic oxide to render the contents inside the mask sheet non- And at least one inorganic material selected from the group consisting of silicon (SiO ₂ ), manganese oxide (MnO), aluminum oxide (Al ₂ O ₃ ), cerium oxide (CeO ₃ ), mica, silica, mica, talc, , Mask Pack. 14. The method of claim 13,
Wherein the inorganic material is contained in an amount of 0.01 to 0.5% by weight based on the total weight of the blocking complementary layer. The method according to claim 1,
And the mass per unit area of the blocking supplement layer is 0.1 to 20 gsm. The method according to claim 1,
Wherein the viscosity of the cosmetic composition impregnated in the base layer is 5,000 to 200,000 cps. The method according to claim 1,
Wherein the mask sheet further comprises a release film laminated on the outer surface of the base layer on which the cosmetic composition is carried. S1) a base layer impregnated with the cosmetic composition;
A barrier layer intercepting leakage of the cosmetic composition impregnated into the base layer; And
And a barrier supplement layer which complements the water solubility and bioactivity of the barrier layer,
The blocking complementary layer may be formed of one or more layers between the base layer and the blocking layer; One or more layers may be formed on both the base layer and the barrier layer and on the outer surface of the barrier layer; Preparing a mask sheet having two or more layers on the outer surface of the barrier layer; And
S2) impregnating the base layer with a cosmetic composition. 19. The method of claim 18,
Wherein the blocking complementary layer is formed in at least one layer between the base layer and the blocking layer in the step S1). 19. The method of claim 18,
Wherein the blocking complementary layer is formed on the outer surface of the blocking layer in two or more layers in the step S1). 19. The method of claim 18,
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 on which the cosmetic composition is coated between steps S1) and S2). 19. The method of claim 18,
Further comprising the step of folding the mask sheet so that the cosmetic composition is not exposed to the outside after step S2).

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