Face pack

Abstract

To radiate far infrared rays from inorganic powder to bare skin, with the inorganic powder stuck to the face, while preventing it from flowing down the skin.SOLUTION: A face pack 100 includes inorganic powder 10 disposed, with it diffused in a surface direction of a flexible base sheet 1, where the base sheet 1 is a flexible nonwoven fabric formed by three-dimensionally collecting synthetic fibers without any direction, and the nonwoven fabric includes the inorganic powder 10 smaller than a fiber diameter, embedded in the synthetic fibers.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a face pack that is attached to the human face via a pack material and radiates far infrared rays to the skin using inorganic powder. [Background technology]

[0002] A face pack has been developed in which ceramic powder is layered on the surface of fabric using a packing agent (see Patent Document 1). This face pack is made by impregnating and applying a jelly-like or paste-like packing agent made by kneading fine powder of tourmaline ore alone or ceramics containing tourmaline with one or more gelling agents selected from agar, pectin, and gelatin, and / or animal and vegetable oils and fats, and extracts from animals and plants, onto natural or synthetic fiber fabric.

[0003] Furthermore, a face pack has also been developed in which a nonwoven fabric is impregnated with a lotion containing clay powder via the lotion (see Patent Document 2). In this face pack, the nonwoven fabric base is impregnated with 250 to 800% by weight of lotion relative to the nonwoven fabric. Clay powder is contained in the lotion at 5.0 to 15.0% by weight. Bentonite is contained in a content of 0.7% by weight or less relative to the lotion. A mesh-type nonwoven fabric is used. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-226633 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-1645 Summary of the Invention [Problem to be solved by the invention]

[0005] The face pack of Patent Document 1 is impregnated or coated with a jelly-like or paste-like pack agent, which is a mixture of fine ceramic powder containing tourmaline ore, gelling agents such as agar, pectin, or gelatin, and / or animal or vegetable oils and fats, and animal or vegetable extracts, on the surface of a fabric. However, the pack agent impregnated or coated on the surface reduces flexibility, making it difficult to apply over a wide area to an uneven face. Furthermore, the pack agent tends to run off when applied to the face. Similarly to Patent Document 1, the face pack of Patent Document 2 also suffers from the drawback that the lotion impregnated in the nonwoven fabric runs off when applied to the face, staining the user's clothing. The inorganic powder that runs off along with the pack agent or lotion cannot be easily removed by wiping, unlike lotion. In particular, the finer the inorganic powder, the greater its surface area relative to its weight and the higher the far-infrared radiation efficiency, the more easily the fine powder particles penetrate narrow gaps in clothing mesh and the like, making it difficult to remove like a liquid.

[0006] The present invention was developed with the aim of overcoming the above drawbacks, and one object of the present invention is to provide a face pack that can radiate far-infrared rays from fine inorganic powder to bare skin while preventing the inorganic powder from flowing off when attached to the face.

[0007] A face pack according to one embodiment of the present invention comprises a flexible base sheet and inorganic powders dispersed in the surface direction of the base sheet. The inorganic powder is a sintered powder of natural stone, The base sheet is a flexible nonwoven fabric made of synthetic fibers assembled three-dimensionally without any directionality, and the particle size of the inorganic powder is smaller than the diameter of the synthetic fibers in the nonwoven fabric, and the inorganic powder of the sintered powder is embedded in the synthetic fibers. This prevents the inorganic powder from flowing off along with the pack agent and leaving a mess, and after using the face pack, the inorganic powder can be peeled off without remaining on bare skin.

[0008] The face packs described above are made by embedding inorganic powder in synthetic fibers, which are then assembled three-dimensionally and without directionality to form a nonwoven fabric. Therefore, despite the inorganic powder being contained within, the nonwoven fabric does not lose its flexibility and can be applied in a flexible state to uneven facial skin. In particular, because the inorganic powder is embedded in the fibers of the nonwoven fabric, the inorganic powder does not flow off along with the pack agent and cause stains. Furthermore, after use, the inorganic powder can be removed without remaining on the skin, eliminating the need to wipe off the inorganic powder remaining on the skin after removal, as with conventional face packs. Therefore, the face packs described above are convenient, clean, and easy to use, allowing far-infrared radiation to be radiated to the face.

[0009] The face pack described above is made of flexible nonwoven fabric fibers that can be mass-produced efficiently and contain sintered inorganic powder. Because this face pack has calcined inorganic powder embedded in the nonwoven fabric fibers, it can be applied to the user's face using a face pack agent such as a lotion, and radiate far-infrared rays to the skin. The sintered inorganic powder embedded in the fibers is excited by the radiant energy from the skin and radiates far-infrared rays. When applied close to the skin, it absorbs the energy from the face and effectively radiates far-infrared rays to the skin.

[0010] The face packs described above are characterized by being able to deform to fit the uneven surface of the face, adhering to a wide area of ​​the bare skin surface, effectively irradiating the bare skin with far-infrared rays, and further preventing the inorganic powder from running off while adhering to the face.

[0011] Another embodiment of the face pack of the present invention uses a nonwoven fabric in which inorganic powder obtained by burning and crushing natural stone to form sintered powder is embedded in the fibers.

[0012] This face pack uses sintered natural stone powder as the inorganic powder embedded in the fibers of the nonwoven fabric. However, natural stone hardens and becomes brittle when sintered, making it easy to crush and process into small-particle sintered powder. The inorganic powder embedded in the synthetic fibers of the nonwoven fabric must be smaller than the fiber diameter. Synthetic fibers embedded with inorganic powder larger than the fiber diameter lose strength and break into fine fibers during use, which adhere to the face. Natural stone, which has become highly hard after sintering, easily breaks into fine particles. Therefore, by crushing and processing it into fine sintered powder, this powder can be added to resin materials such as acrylic and polyester, which are used to process synthetic fibers, and then processing them into fibers. This efficiently produces strong, unbreakable synthetic fibers with embedded sintered powder. These synthetic fibers can then be assembled in a three-dimensional, non-directional manner to produce nonwoven fabrics with fired natural stone powder embedded in the fibers. Therefore, the above face pack efficiently produces nonwoven fabrics with embedded inorganic powder, achieving the ability to irradiate far-infrared rays to the face.

[0013] In another embodiment of the face pack of the present invention, the inorganic powder embedded in the synthetic fibers may have a volume average diameter of 5 μm or less.

[0014] In another embodiment of the face pack of the present invention, a nonwoven fabric of synthetic fibers containing 0.1% by weight or more of inorganic powder can be used.

[0015] Another embodiment of the face pack of the present invention uses sintered rhyolite powder, which is obtained by firing rhyolite into powder, as the inorganic powder embedded in the synthetic fibers of the nonwoven fabric.

[0016] Rhyolite contains a few percent of potassium oxide, which has a low melting point, so it can be sintered by melting low-melting potassium oxide during firing. The molten potassium oxide sinters the rhyolite, hardening it. Furthermore, during the sintering process, rhyolite loses its burnt components, creating tiny voids, and is sintered in a porous state. Rhyolite that has been sintered to a porous, highly hard state can be more efficiently crushed into fine powder and embedded in nonwoven fabric fibers. Therefore, this face pack has the advantage of being able to be mass-produced more efficiently by sintering rhyolite, crushing it, and embedding the sintered powder obtained in the fibers.

[0017] Furthermore, the porous nature of rhyolite improves its water absorption properties because the minute voids inside are interconnected. Incidentally, when water droplets are placed on the surface of uncalcined rhyolite, the water adheres as droplets without being absorbed into the interior due to surface tension, whereas when water is placed on the surface of calcined rhyolite, it quickly penetrates and is absorbed without forming droplets on the surface. Fibers embedded with inorganic powders with excellent water absorption properties can be embedded in absorbent synthetic fibers such as rayon or acrylic, improving the absorbency of the entire fiber, i.e., the absorbency of the nonwoven fabric, and allowing packs such as lotions to adhere smoothly to bare skin.

[0018] In another embodiment of the face pack of the present invention, the nonwoven fabric can be a binder-free nonwoven fabric. Since the intersections of the fibers are not bound by a binder, the binder-free nonwoven fabric is flexible and deformable, allowing it to fit over a wider area to the uneven surface of the face.

[0019] In another embodiment of the face pack of the present invention, the synthetic fiber of the nonwoven fabric is rayon. Because this face pack uses rayon as the synthetic fiber of the nonwoven fabric, the excellent water absorption and moisture absorption properties of rayon fiber allow the face pack to be effectively attached to the face via an aqueous lotion. Furthermore, the soft texture of rayon fiber allows the face pack to freely deform to conform to the contours of the face, allowing it to be attached over a wide area of ​​the face with a comfortable feel. Furthermore, rayon fiber is biodegradable, making it easy to dispose of. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic diagram showing a state in which a face pack according to a first embodiment of the present invention is used. [Figure 2] FIG. 2 is an enlarged cross-sectional view of the face pack of FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be described in detail below with reference to the drawings. In the following description, terms indicating specific directions or positions (e.g., "upper," "lower," and other terms incorporating these terms) will be used as necessary. However, the use of these terms is intended to facilitate understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. Furthermore, parts with the same reference numerals appearing in multiple drawings indicate the same or equivalent parts or components. Furthermore, the embodiments described below are illustrative examples of the technical concept of the present invention and do not limit the scope of the present invention to the following. Furthermore, unless otherwise specified, the dimensions, materials, shapes, relative positions, and the like of the components described below are intended for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, the content described in one embodiment or example may also be applicable to other embodiments or examples. Furthermore, the sizes and positional relationships of components shown in the drawings may be exaggerated for clarity. (Embodiment 1)

[0022] The face pack 100 in Fig. 1 has a flexible base sheet 1 made of nonwoven fabric, with synthetic fibers in which inorganic powder 10 is embedded. The base sheet 1 is a flexible nonwoven fabric in which synthetic fibers are gathered three-dimensionally with no orientation, and the fibers have inorganic powder 10 made of sintered powder of natural stone embedded in them, as shown in the enlarged cross-sectional view of Fig. 2. The sintered powder of natural stone is embedded in the synthetic fibers of the nonwoven fabric with a particle size smaller than the diameter of the synthetic fibers in the nonwoven fabric. The face pack 100 is made by cutting the nonwoven fabric into a shape that can be applied to the face. (nonwoven fabric)

[0023] Rayon fiber is preferably used as the synthetic fiber for the nonwoven fabric. Rayon fiber is water-absorbent and hygroscopic, making it suitable for applying the face pack 100 to the face using an aqueous lotion. This nonwoven fabric has a soft texture, allowing it to freely conform to the contours of the face, adhering comfortably to bare skin. It is also biodegradable, making it easy to dispose of. However, the present invention does not limit the fiber used for the nonwoven fabric to rayon fiber; other synthetic fibers, such as acrylic fiber and polylactic acid fiber, can also be used. Acrylic fiber is water-absorbent and soft, making nonwoven fabrics made from this fiber easy to apply to the face using lotions and other products, and providing a pleasant feel against bare skin. Polylactic acid fiber is biodegradable, making this nonwoven fabric easy to dispose of.

[0024] Synthetic fibers, for example, have a fiber diameter (weight fineness) of 0.3 decitex (dtex) or more and 5 decitex or less, preferably 0.5 decitex or more and 3 decitex or less, and are assembled three-dimensionally without directionality and processed into a nonwoven fabric. Nonwoven fabrics with a fiber diameter of 0.3 decitex or less are difficult to embed inorganic powders into and achieve sufficient strength, while fibers with a fiber diameter of 5 decitex or more result in a loss of the soft, fluffy feel of the nonwoven fabric, making it difficult for the fabric to adhere comfortably to bare skin. A fiber diameter of approximately 1.4 decitex is optimal for nonwoven fabrics, as this allows for sufficient strength to embed inorganic powders and provides a soft feel. Therefore, the optimal nonwoven fabric for the face pack 100 has a fiber diameter of 1 to 3 decitex.

[0025] Since the intensity of far-infrared radiation can be increased by increasing the amount of inorganic powder embedded in the fibers of a nonwoven fabric, it is preferable to embed 0.1% by weight or more of inorganic powder in the fibers. However, if too much inorganic powder is embedded in the fibers, the strength decreases, and the fibers may break when the face pack adheres to the face and then peels off, so the amount of embedded inorganic powder is preferably 10% by weight or less. Furthermore, the amount of inorganic powder 10 added to the fibers of the nonwoven fabric is 0.5% by weight or more and 5% by weight or less, so that the fibers can effectively radiate far-infrared radiation to the face while maintaining sufficient strength, and the amount of inorganic powder 10 added is preferably within this range.

[0026] Nonwoven fabrics can be produced by bonding the intersections of fibers with a binder, but binderless nonwoven fabrics, which do not use a binder to bind the fibers, are preferable. Binderless nonwoven fabrics are soft to the touch and easily deformable, so they can conform to the contours of the face and adhere to the skin over a wide area, effectively irradiating far-infrared rays and providing a more comfortable fit. Binderless nonwoven fabrics can be produced by three-dimensionally assembling fibers embedded with inorganic powder 10 and entangling the fibers using methods such as spunlace and needle punching. (Inorganic powder 10)

[0027] The inorganic powder 10 can be any inorganic fine powder that emits far-infrared rays when excited by temperature. However, a sintered powder of natural stone, which is produced by calcining and pulverizing natural stone (described in detail below), is preferred. However, the present invention does not limit the inorganic powder 10 to sintered natural stone powder; any inorganic powder that emits far-infrared rays, such as silica powder or alumina powder, can be used. The inorganic powder 10 is prepared by calcining natural stone, pulverizing it to a particle size smaller than the diameter of the synthetic fibers of the nonwoven fabric, and then embedding the particles in the fibers. The inorganic powder 10 preferably has a volume average diameter of 5 μm or less, more preferably 1 μm or less, and optimally approximately 0.3 μm. The nonwoven fabric can achieve sufficient strength and flexibility while effectively radiating far-infrared rays by embedding 2% by weight of inorganic powder with a volume average diameter of 0.3 μm in synthetic fibers with a fiber diameter (weight fineness) of 1.4 decitex. The volume average diameter is the arithmetic average diameter in a particle size distribution based on volume, and the particle size distribution can be measured using, for example, a particle size distribution meter (manufactured by Nikkiso Co., Ltd., product name: MT3300).

[0028] The inorganic powder natural stone is preferably rhyolite collected in Shigenobu Town, Ehime Prefecture. This fired rhyolite contains the following components in X-ray fluorescence analysis (EZ scan). Silicon dioxide (SiO2) 70.9% Aluminum oxide (Al2O3)...16.6% Sodium oxide (Na2O)...3.7% Potassium oxide (K2O)……………·2.8% Ferric oxide (Fe2O3) 2.2% Calcium oxide (CaO) 3.0% Magnesium oxide (MgO)...0.2% Titanium dioxide (TiO2) 0.2%

[0029] Rhyolite is crushed to the size of gravel, a coarse aggregate, and fired in an oxidizing atmosphere. Rhyolite is crushed to the size of gravel and fired. Gravel-like rhyolite can be heated to its interior and sintered. Rhyolite contains potassium oxide, which has a low melting point. During the firing process, the low-melting potassium oxide melts and is then heated to a high temperature, eliminating the burned components contained in the rhyolite, creating micropores and sintering the material into a porous form. During firing, the molten potassium oxide acts as a flux, sintering the rhyolite into a hard, porous form. After firing, the porous rhyolite's internal micropores become interconnected, improving its water absorption properties. Water droplets deposited on the surface of uncalcined rhyolite adhere to the surface without being absorbed into the interior, whereas water quickly penetrates and is absorbed into the interior of calcined rhyolite. Rhyolite, which becomes porous and hard when fired, is easier to crush than unfired rhyolite and can be efficiently processed into a fine sintered powder.

[0030] If the firing temperature for rhyolite is too low, it will not be sintered uniformly to the inside, resulting in low hardness. Conversely, if the firing temperature is too high, the firing cost will increase and the porosity will decrease as the rhyolite melts. Since rhyolite melts at 700°C to 900°C, the firing temperature for rhyolite is, for example, 600°C to 900°C, preferably 800°C to 900°C. To fire rhyolite, crushed rhyolite is fed into a rotating trommel placed on a downward slope, and the trommel stirs and transports the material for efficient and uniform firing.

[0031] The face pack 100 described above can be mass-produced efficiently using nonwoven fabric made from synthetic fibers in which inorganic powder 10, such as sintered powder of natural stone, is embedded. This face pack 100 has inorganic powder 10, such as fired powder of natural stone, embedded in the fibers of the nonwoven fabric, so that it can be applied to the user's face using a pack agent such as lotion and radiate far-infrared rays to bare skin. The inorganic powder 10, such as sintered powder of natural stone, embedded in the fibers is excited by radiant energy from bare skin and radiates far-infrared rays. When applied close to bare skin, it absorbs energy from the face and effectively radiates far-infrared rays to bare skin.

[0032] Furthermore, because the face pack 100 has inorganic powder 10 embedded in nonwoven synthetic fibers, unlike conventional face packs, the inorganic powder 10 does not flow off along with the pack agent and stain clothes, and after use, the inorganic powder 10 can be peeled off the face without remaining on the skin, eliminating the need to wipe off the inorganic powder remaining on the skin after peeling, as with conventional face packs. Therefore, the face pack 100 has the advantage of being convenient, clean, and easy to use, allowing far-infrared rays to be irradiated onto the face. [Industrial Applicability]

[0033] The present invention can be effectively used as a face pack that is attached to the face and irradiates far infrared rays. [Explanation of symbols]

[0034] 100...Face pack 1...Base sheet 10...Inorganic powder

Claims

1. a flexible base sheet; and inorganic powders dispersed and arranged in a surface direction of the base sheet, The inorganic powder is a sintered powder of natural stone, The base sheet is a flexible nonwoven fabric made by assembling synthetic fibers in a three-dimensional manner without any directionality, the nonwoven fabric is formed by embedding the inorganic powder, which is smaller than the fiber diameter, in the synthetic fibers; The inorganic powder does not flow off together with the packing agent and cause a mess, Furthermore, this face pack is characterized in that after use, the inorganic powder can be peeled off without remaining on bare skin.

2. A face pack according to claim 1, The natural stone is When water is applied to the surface without firing, it forms droplets and adheres to the surface. This face pack is characterized in that when water is applied to the surface in a baked state, it quickly penetrates into the interior and absorbs it.

3. A face pack according to claim 1, The inorganic powder is a sintered powder of rhyolite obtained by firing rhyolite, The synthetic fiber contains the inorganic powder, The face pack is characterized in that the nonwoven fabric does not lose its flexibility and can be attached in a flexible state to uneven bare skin of the face.

4. 4. The face pack according to claim 1, The inorganic powder embedded in the synthetic fiber is A face pack which is a sintered powder characterized in that the powder has a volume average diameter of 5 μm or less.

5. 5. The face pack according to claim 1, The synthetic fiber is A face pack comprising 0.1% by weight or more of the inorganic powder.

6. 6. The face pack according to claim 1, A face pack characterized in that the nonwoven fabric is a binderless nonwoven fabric.

7. 7. The face pack according to claim 1, A face pack characterized in that the synthetic fiber of the nonwoven fabric is rayon.

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