JP2023039780A - Container for two-liquid-type skin-revitalizing cosmetic - Google Patents

Abstract

To make it possible to reliably acquire two kinds of compositions in desired quantities respectively and to evenly mix them in a container for a two-liquid-type cosmetic that takes effect of skin-revitalizing action with immediate effectiveness.SOLUTION: In a container for two-liquid-type skin-revitalizing cosmetic where a first part and a second part are housed in a non-contact state, the first part contains sodium silicate and water, the second part contains carbomer and water, peripheral edge parts of layered first film and second film are bonded, a housing space where fluid can be housed between the first film and the second film is formed, and the housing space has a first chamber for housing the first part and a second chamber for housing the second part. The first chamber and the second chamber are separated by a boundary part where the first film and the second film are bonded with bonding strength weaker than the peripheral edge parts.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a container for a two-component skin-improving cosmetic composition.

2. Description of the Related Art Conventionally, as a cosmetic having an immediate skin-improving effect, such as a wrinkle-improving effect, there has been known a cosmetic comprising a combination of a polymer component capable of forming a film on the skin surface and a component having a skin-contracting effect.

For example, U.S. Pat. No. 5,300,003 discloses a skin-compatible medium containing an amount of at least one tightening agent and an amount of at least one elastomeric, water-insoluble, film-forming linear block ethylenic polymer. A cosmetic composition adapted for topical application to the skin is described comprising: Patent Document 2 describes a cosmetic composition for improving skin elasticity and wrinkles, containing a skin-contracting silicate and a predetermined acrylic polymer.

In the above cosmetics, mixing the film-forming polymer component with the contractile component accelerates the cross-linking reaction of the polymer. Aggregation progresses as time passes, and it tends to become difficult to use. Therefore, two kinds of compositions each containing each component are usually housed in separate containers, and are provided as a two-component cosmetic that is used by mixing immediately before use.

For example, two types of compositions are accommodated in desired amounts (or required amounts for exhibiting skin improving effects) in a dish-shaped container and a bottle-shaped container as shown in FIG. The operator mixes both compositions with a brush or the like.

Japanese Patent Publication No. 2007-506708 Korean Patent Publication No. 10-2017-0040461

However, the work up to the application of such a two-component cosmetic composition, that is, the work of taking out the composition from the container, the work of mixing two kinds of compositions, etc., is troublesome for the user. Also, it may not be possible to accurately dispense the desired amounts of the two compositions or to mix the compositions uniformly. In that case, the cosmetic after mixing may not be able to exhibit a sufficient skin-improving effect.

Therefore, one aspect of the present invention is to reliably obtain desired amounts of each of the two compositions in a container for a two-component cosmetic that exhibits an immediate skin-improving effect, and to mix them uniformly. The challenge is to make it possible.

One aspect of the present invention for solving the above problems is a container for a two-component skin improving cosmetic in which a first part and a second part are accommodated in a non-contact state, wherein the first part is , sodium silicate, and water, wherein the second part comprises carbomer and water, the peripheries of the stacked first and second films are joined, and the first film and the second film are joined together; An accommodation space capable of accommodating a fluid is formed between the The first chamber and the second chamber are separated by a boundary formed by bonding the first film and the second film with a bonding strength weaker than that of the peripheral portion.

ADVANTAGE OF THE INVENTION According to one aspect of the present invention, it is possible to provide a cosmetic that exhibits a wide range of skin-improving effects.

1 is a front view of a container according to one embodiment of the invention; FIG. FIG. 2 is a rear view of a container according to one embodiment of the invention; FIG. 2 is a sectional view taken along the line II of FIG. 1; FIG. 2 is a diagram illustrating how to use a container according to one embodiment; FIG. 2 is a diagram illustrating how to use a container according to one embodiment; FIG. 2 is a diagram illustrating how to use a container according to one embodiment; FIG. 2 is a diagram illustrating how to use a container according to one embodiment; 1 shows a container according to the prior art; FIG.

<Two-liquid type skin improving cosmetic>
One form of the present invention is a two-component skin-improving cosmetic. As used herein, skin improvement refers to cosmetic or aesthetic improvement of skin, more specifically, one or more of wrinkles, pores, sagging, and tone. may include improvements to The two-liquid type skin-improving cosmetic composition according to the present embodiment is particularly effective in improving wrinkles and pores. The subject to which the cosmetic according to this embodiment is applied is mainly the face, but it may also be applied to parts other than the face, such as the décolleté (neck, shoulders, and chest) and the back.

As used herein, the two-pack type refers to a form in which at least two compositions are mixed immediately before application to the skin. Therefore, the skin-improving cosmetic according to this embodiment is provided in a state in which the first part (first composition) and the second part (second composition) do not come into contact with each other. The mode of accommodation will be detailed later.

The properties of the cosmetic according to the present embodiment are not particularly limited, but when the mixture obtained by mixing the first part and the second part is applied to the surface of the skin, it forms a film with a certain thickness on the skin. For example, those capable of forming a coating with a thickness of 100 μm or more and 200 μm or more in a normal usage form are preferable. Therefore, it is preferable that the cosmetic according to the present embodiment has properties called gel (gel), cream, base, or balm immediately before being applied to the skin.

The skin-improving cosmetic in which Part 1 and Part 2 are mixed contains a carboxyvinyl polymer, sodium silicate, and water. A combination of these ingredients can provide a cosmetic that exhibits a wide range of skin-improving effects. The skin-improving action of the skin-improving cosmetic has an immediate effect, and the action continues even after the cosmetic is washed away. More specifically, according to the present embodiment, it is possible to provide a cosmetic that exhibits an excellent wrinkle-improving effect and/or pore-improving effect that is fast-acting and highly durable.

In this specification, the wrinkle-improving action refers to reducing the depth of wrinkles (groove-shaped depressions formed on the surface of the skin), reducing the width, or shortening the length, or wrinkles. It refers to the action of smoothing the surface of the skin. In addition, the pore-improving action refers to reducing the depth of pores, reducing the diameter of pores, or reducing the number of pores. The wrinkle-improving action is also closely related to the sagging-improving action and the like. When the wrinkle-improving action is enhanced, sagging of the skin is also reduced or eliminated, and the skin can be made firmer. The action of reducing wrinkles and sagging and providing firmness is sometimes called a lift-up action. According to this form, immediate or immediate skin improvement effect can be obtained without surgically invasive treatment, and the effect is sustained for a long period of time.

In the following, first, the two-liquid type skin-improving cosmetic contained in the container according to this embodiment will be described.

<Part 1 (Carboxyvinyl polymer-containing composition)>
The first part of the two-component skin-improving cosmetic contained in this embodiment may be a composition containing a carboxyvinyl polymer and water, that is, an aqueous dispersion or aqueous solution of the carboxyvinyl polymer. Carboxyvinyl polymer (carbomer) is a cross-linked copolymer of acrylic acid. Since the first part contains the carboxyvinyl polymer, when the mixture obtained by mixing with the second part is applied on the skin at the time of use, the coating (thin layer) has a more uniform thickness and adheres more closely to the skin. can be enhanced. In addition, when the first part and the second part are mixed, the carboxyvinyl polymer can bring the cosmetic into a good gel state by combining with the sodium silicate contained in the second part. It exerts an excellent anti-wrinkle effect, ie, an effect of shrinking the surface of the skin and shallowing or eliminating grooves formed on the skin.

Specific examples of carboxyvinyl polymers include Lubrizol Corporation's Carbopol (registered trademark) 940, Carbopol 941, Carbopol 980 and Carbopol 981, Sumitomo Seika Co., Ltd.'s AQUPEC (registered trademark) HV-501E and AQUPEC HV- 505E, Hivis Wako (registered trademark) 103, Hivis Wako 104, and Hivis Wako 105 manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. Carbopol 980 is particularly preferred. The above carboxyvinyl polymers can be used alone or in combination of two or more.

The content of the carboxyvinyl polymer is preferably 0.3% by mass or more and 5% by mass or less, more preferably 0.5% by mass or more and 3% by mass or less, and still more preferably 0.8% by mass, based on the total amount of Part 1. % or more and 2 mass % or less. By setting the content of the carboxyvinyl polymer in the above range, the cosmetic obtained by mixing with Part 2 at the time of use can have an appropriate viscosity, and when applied to the skin, it has a skin-improving effect. A coating having sufficient thickness and uniformity to perform well can be formed. Also, the carboxyvinyl polymer can be well dispersed in the first part.

In addition, the content of the carboxyvinyl polymer is preferably 0.2% by mass or more and 4% by mass or less, more preferably 0.4% by mass or more and 2% by mass or less, based on the total amount of the first part and the second part. can be In addition, the content of the carboxyvinyl polymer is preferably 0.2% by mass or more and 4% by mass or less, more preferably 0.4% by mass or more and 2% by mass or less with respect to the total amount of the cosmetic after mixing immediately before application. It's okay.

The water contained in Part 1 may be purified water, ion-exchanged water, natural water, tap water, or the like. Water may be preferably 80% by mass or more and 99.7% by mass or less, more preferably 90% by mass or more and 98% by mass or less, relative to the total amount of Part 1.

Part 1 may contain other ingredients than those mentioned above. For example, Part 1 may contain amino acid, peptide, or protein-based drugs (cosmetic ingredients) that can further improve the skin-improving action. By adding such cosmetic ingredients, the durability of the skin-improving action, particularly the wrinkle-improving action and/or the pore-improving action, can be enhanced. The cosmetic ingredients can be used singly or in combination of two or more. Moreover, such cosmetic ingredients may be included in the second part described later, but are preferably included only in the first part.

In addition, Part 1 may contain antioxidants, plant-derived components, animal-derived components, emulsifiers, preservatives, pigments, surfactants, humectants, thickeners, fragrances, etc. as other components. .

The emulsifier contained in Part 1 may be a polymeric emulsifier that aids in the dispersion of the carboxyvinyl polymer, such as an acrylic polymeric emulsifier with hydrophilic groups, specifically acrylates/alkyl acrylates (C10-30) It may be a crosspolymer. The content of the polymer emulsifier may be 0.005 parts by mass or more and 0.5 parts by mass or less with respect to 1 part by mass of the carboxyvinyl polymer.

<Part 2 (sodium silicate-containing composition)>
The second part of the two-component skin-improving cosmetic contained in this embodiment may be a composition containing sodium silicate and water, that is, an aqueous dispersion of sodium silicate. Since the second part contains sodium silicate, when the mixture obtained by mixing the second part and the first part is applied on the skin, the contraction effect of the skin, that is, the area of the skin surface is reduced. It can improve the action and give firmness to the skin. In addition, when the first part and the second part are mixed, the sodium silicate can bring the cosmetic into a good gel state by combining with the above-mentioned carboxyvinyl polymer contained in the first part. Furthermore, it can exhibit an excellent anti-wrinkle effect, that is, an effect of reducing the surface area of the skin and shallowing or eliminating grooves formed on the skin.

The sodium _silicates used are sodium metasilicate ( _{Na2SiO3 )} , sodium orthosilicate ( _{Na4SiO4 ) ,} sodium disilicate ( _Na2Si2O5 ), _sodium tetrasilicate ( _{Na2Si4O 9} ), and one or more of their hydrated moieties, preferably consisting primarily of sodium metasilicate. Sodium silicate can _be generally represented by the formula _{of Na2O.nSiO2.xH2O} . The factor n in the formula is the molar ratio (molar ratio of _SiO2 to _Na2O ). The molar ratio of sodium silicate to be used is preferably 2 or more and 4 or less, more preferably 2.3 or more and 3.5 or less, and still more preferably 3.0 or more, from the viewpoint of adjusting the pH of the cosmetic to be obtained. It may be 3.5 or less.

In preparing Part 2, sodium silicate is preferably added in a state of being dispersed in water. The dispersion of sodium silicate is preferably a dispersion of 25% by mass or more and 60% by mass or less, or preferably has a viscosity of 80 cp or more and 500 cp or less.

The content of sodium silicate is preferably 5% by mass or more and 30% by mass or less, more preferably 7% by mass or more and 22% by mass or less, still more preferably 13% by mass or more and 22% by mass or less, based on the total amount of Part 2. can be By setting the content of sodium silicate in Part 2 within the above range, the cosmetic obtained by mixing Part 1 and Part 2 can have an appropriate viscosity, and when applied to the skin, , it is possible to form a film having sufficient thickness and uniformity to exhibit a skin-improving effect. Also, the sodium silicate in the second part can be well dispersed.

The content of sodium silicate is preferably 0.5% by mass or more and 5% by mass or less, more preferably 1% by mass or more and 4% by mass or less with respect to the total amount of Part 1 and Part 2. . The content of sodium silicate may be preferably 0.5% by mass or more and 5% by mass or less, more preferably 1% by mass or more and 4% by mass or less with respect to the total amount of the cosmetic after mixing immediately before application.

The water contained in the second part may be purified water, ion-exchanged water, natural water, tap water, or the like. Water may be preferably 75% by mass or more and 95% by mass or less, more preferably 90% by mass or more and 98% by mass or less, relative to the total amount of Part 2.

The second part may contain other ingredients than those mentioned above. For example, other ingredients contained in Part 2 may be antioxidants, preservatives, pigments, perfumes, and the like. Part 2 may also contain silicates other than sodium silicate, such as magnesium silicate, and salts other than silicates.

Although the first and second parts can be combined in any amount, the ratio (W1/W2) of the mass of the first part (W1) to the mass of the second part (W2) is preferably 3 It may be more than or equal to 10 or less, more preferably 4 or more and 8 or less. By combining the first part and the second part in the above ratio, the first part and the second part can be well mixed, and a film having a thickness and uniformity that can sufficiently exhibit the skin improving effect can be formed on the skin. . Also, the pH of the mixture of Part 1 and Part 2 can be in a range favorable to the skin.

In addition, the ratio (w _CV /w _SC ) of the mass (w _CV ) of the carboxyvinyl polymer to the mass (w _SC ) of sodium silicate is preferably 0.3 or more and 0.42 or less. By mixing sodium silicate in the above ratio, the mixture has an appropriate viscosity and aggregation is suppressed, so that a film having a thickness and uniformity that exhibits a good skin improvement effect is formed on the skin. can. In addition, operability is improved.

The pH of the cosmetic in the state where the first part and the second part are mixed may preferably be 10.0 or more and 11.0 or less.

Both Part 1 and Part 2 may be flowable, water-based fluids. Furthermore, it is desirable that the cosmetic in the state where the first part and the second part are mixed also has fluidity.

<Glycylglycine>
Part 1 or Part 2, or both, may further contain glycylglycine. By containing glycylglycine, the resulting cosmetic improves its pore-improving effect, and also improves its wrinkle-improving effect. Therefore, it is possible to provide a cosmetic that exhibits a wider range of skin-improving effects from the viewpoint of beauty.

In the two-component skin-improving cosmetic, the content of glycylglycine is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.01% by mass or more and 5% by mass or less, based on the total amount of Part 1 and Part 2 described later. It may be 0.03% by mass or more and 3% by mass or less. By setting the content of glycylglycine within the above range, it is possible to improve wrinkle-reducing action and pore-reducing action, particularly pore-reducing action. In addition, the content of glycylglycine is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.03% by mass or more and 3% by mass or less with respect to the total amount of the cosmetic after mixing immediately before application. It's okay.

In addition, it is preferable that the second part contains glycylglycine because preparation of each part becomes easier. When the second part contains glycylglycine, the content of glycylglycine is preferably 0.05% by mass or more and 10% by mass or less, more preferably 0.1% by mass, relative to the total amount of the second part % or more and 5 mass % or less.

<Container for two-liquid type skin-improving cosmetic>
Next, a container for containing the two-pack type skin improving cosmetic in which the first part and the second part are combined will be described. In the container according to this aspect, the first part (first composition) and the second part (second composition) are accommodated in a non-contact state. When Part 1 and Part 2 are mixed, the cross-linking reaction of the carboxyvinyl polymer contained in Part 2 proceeds, and the mixture tends to aggregate and harden. In that case, if a long period of time elapses after mixing, there is a possibility that it will not be possible to apply the composition to the skin in a desired thickness, or that it will not be possible to apply the composition to the skin. Therefore, if the first part and the second part are accommodated and stored in a non-contact state as in the present embodiment and can be mixed immediately before use, the mixture in good condition can be applied to the skin. A container according to this aspect may be a container having two separated chambers formed by laminating films.

An example of the container according to this embodiment will be described below with reference to the drawings. FIG. 1 is a plan view of the container according to this embodiment as viewed from one side (front). FIG. 2 is a plan view seen from the opposite side (rear surface) of FIG. FIG. 3 is a sectional view taken along line II in FIG. Note that illustration of the contents is omitted in FIG.

As shown in FIGS. 1 to 3, the container 1 is formed by laminating a first film 2 and a second film 3, which are inseparably joined at a peripheral edge portion 32 thereof. By joining the peripheral edge portion 32, a storage space can be formed in the region where the first film 2 and the second film 3 are not joined, and cosmetics can be stored in the storage space. Here, as shown in FIGS. 1 to 3, the housing space is separated into a first chamber 11 and a second chamber 12. FIG. The first chamber 11 and the second chamber 12 contain the above-described first part (first composition or first fluid composition) C1 and second part (second composition or second fluid composition) C2, respectively. can do. The first chamber 11 and the second chamber 12 are partitioned by a separable boundary portion 31 to isolate both chambers. The separable boundary portion 31 is formed by joining the first film 2 and the second film 3 together. In this specification, separable means that when the user applies force in a normal manner during use of the container 1, for example, both the first film 2 itself and the second film 3 themselves are damaged. It means that the bond is broken without On the other hand, non-separable means that the bonding cannot be released when the user applies force in a normal manner (when the configurations of the first film 2 and the second film 3 are not changed, and when the first film 2 and the second film 3 are not changed). including the case where at least one of the second films 3 is damaged).

One end of the container 1 is formed with a tab portion 35 which is separable and by which the container 1 can be opened. In this specification, the side on which the tab portion 35 is provided may be called the upper side, and the opposite side may be called the lower side.

The joining of the peripheral portion 32 can be performed by heat sealing. That is, the first film 2 and the second film 3 are laminated in contact with each other, and the first film 2 and the second film 3 are separated by applying pressure and heat from both sides to the peripheral edge portion 32 of the laminated film. It is joined by pasting together. The bonding of the peripheral portion 32 is a bonding (strong bonding) that cannot be separated when the user uses the container 1 according to the present embodiment in a normal manner of use. On the other hand, the boundary portion 31 at the boundary between the first chamber 11 and the second chamber 12 is also formed by heat sealing, but the bonding strength between the two films at the boundary portion 31 is smaller than the bonding strength at the peripheral edge portion 32. . The bonding strength between the two films at the boundary portion 31 is such that the user can separate them with normal force when using the container 1 .

The means for forming the bond between the first film 2 and the second film 3 is not limited to heat sealing, and other means such as adhesive, part coating, and sandwiching of another adhesive film may be used. However, it is preferable to use heat sealing because it is relatively easy to adjust the bonding strength and the operation is not complicated.

As shown in FIG. 3, the first film 2 may be planar. On the other hand, the second film 3 may be preliminarily provided with a shape that bulges outward in the thickness direction instead of being planar. As a result, the first film 2 and the second film 3 are separated from each other even in a state in which the contents (the first part and/or the second part) are not stored, and the spaces (the first chamber 11 and the second chamber 11) are formed inside. 12) is preferably formed.

At least one of the first film 2 and the second film 3 may be transparent. In the illustrated example, the first film 2 is transparent and the second film 3 is opaque. It is preferable that at least one of the first film 2 and the second film 3 is a transparent film, because the presence or absence of the contents of the container and the movement of the contents can be confirmed from the transparent film side.

If the first film 2 is made of a flexible material, it is preferable because the mixing operation and the discharging operation (described later) can be performed more satisfactorily. Specific examples of the material used for the first film 2 include resins such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), and polyamide (PA) such as nylon. . The first film 2 may be a single-layer film, or may be a laminated film formed by laminating a plurality of layers made of the same or different materials.

Specific examples of the first film 2 include laminated films such as PET/PE, PET/PP, and PET/PET/PE.

On the other hand, the second film 3 may or may not have flexibility. However, it is preferable to have some degree of flexibility because it allows better mixing and discharging operations (described later). Furthermore, the second film 3 may have a certain degree of shape retention, that is, a property that once a shape is given, it can maintain that shape until an external force is applied (a property that it does not deform due to gravity or the like).

The second film 3 may be a film comprising a metal film, for example an aluminum film (AL). The second film 3 may also be a single-layer film, or may be a laminated film formed by laminating a plurality of layers made of the same or different materials. In the case of a laminated film formed by laminating a plurality of layers, it may be a film formed by laminating a resin film on at least the surface of the metal film facing the first film 2 . By forming the second film 3 as a laminated film in which a metal film and a resin film are laminated, the shape retention of the second film 3 is improved, and the above-mentioned heat resistance of the first film 2 and the second film 3 is improved. Sealing can be performed more easily and more reliably. When the second film 3 is a laminated film containing a metal film and a resin film, the resin material used for the resin film is polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate. (PET), polyamide (PA) such as nylon, and the like.

Specific examples of the second film 3 include laminate films such as PET/AL/PE, PET/AL/PP, and PET/AL/PET/PE.

As shown in FIGS. 2 and 3 , the first chamber 11 has a first convex wall 21 formed by the second film 3 . The second chamber 12 also has a second convex wall 22 formed by the second film 3 .

The first convex wall 21 includes a top wall 211 including a position that is most bulging in the thickness direction (farthest from the first film 2), and a top wall 211 that gently extends in the thickness direction toward the top wall 211 (in the direction away from the first film 2). (d) has an upper wall 212 that rises and a lower wall 213 that rises more sharply in the thickness direction than the upper wall 212 toward the top wall 211 . When using the container 1, the user needs to press the container 1 in the thickness direction to separate the joint of the boundary portion 31 (boundary portion separation operation described later). In that case, the upper wall 212 having an extending direction closer to the extending direction of the first film 2 than the extending direction of the lower wall 213 being closer to the extending direction of the first film 2 has less finger space. Easy to place and easy to apply force in the thickness direction. Therefore, it is possible to apply force to the upper wall 212 (in some cases, the upper wall 212 and the top wall 211) to press the first chamber 11 in a natural motion, thereby allowing the contents inside the first chamber 11 to move. It becomes easier to bring an object to the boundary portion 31 and apply pressure to the boundary portion 31 .

Further, in this embodiment, a discharge passage forming portion 18 communicating with the first chamber 11 is formed at the end portion of the first chamber 11 . When using the container 1, the upper end portion of the discharge passage forming portion 18 can be cut off together with the tab portion 35 described above, and a passage for discharging the cosmetic can be formed. The discharge passage forming portion 18 is also formed by the space between the first film 2 and the second film 3 . Note that the discharge passage forming portion 18 may be a portion that communicates with the second chamber 12 instead of the first chamber 11 . In that case, in the example shown in FIGS. 1 to 3, a tab portion 35 is formed on the lower side.

The tab portion 35 may be a portion formed by joining the first film 2 and the second film 3 continuously to the peripheral edge portion 32 . Both the tab portion 35 and the peripheral edge portion 32 may be inseparably joined. Therefore, when manufacturing the container 1, the bonding of the tab portion 35 and the bonding of the peripheral edge portion 32 can be formed at the same time. Moreover, the tab portion 35 may be a portion having higher rigidity than the peripheral edge portion 32 so that the user can easily grip and cut off the tab portion 35 . For this purpose, for example, a resin film may be further laminated on the tab portion 35 to increase its thickness. In addition, unevenness may be formed on the surface of the tab portion 35 so that the finger does not slip even when the user grips it.

As described above for the composition, the ratio (W1/W2) of the mass (W1) of the first part C1 to the mass (W2) of the second part C2 is preferably 3 or more and 10 or less. Thus, in the combination of the first part and the second part according to this embodiment, the mass of the first part C1 is preferably larger than the mass of the second part C2. Also, the volume of the first part C1 is preferably larger than the volume of the second part C2. Therefore, it is preferable that the volume (v1) of the first chamber 11 containing the first portion C1 is larger than the volume (v2) of the second chamber 12 containing the second portion C2. Furthermore, the ratio (v1/v2) of the volume (v1) of the first chamber 11 to the volume (v2) of the second chamber 12 is preferably 3 or more and 10 or less, more preferably 4 or more and 8 or less. can be done.

The volume (v1) of the first chamber 11 may be preferably 1 cm ³ or more and 60 cm ³ or less, more preferably 5 cm ³ or more and 30 cm ^{3 or} less. Also, the volume (v2) of the second chamber 12 may be preferably 0.1 cm ³ or more and 20 cm ³ or less, more preferably 0.5 cm ³ or more and 10 cm ^{3 or} less.

The size of the entire container 1 is not particularly limited, but as shown in FIG. It's okay. Furthermore, the maximum thickness h1 of the portion where the first chamber 11 is formed may be 3 mm or more and 50 mm or less, and the maximum thickness h2 of the portion where the second chamber 12 is formed may be 3 mm or more and 30 mm or less. Thus, the container 1 is sized so that the user can hold it with one hand and apply pressure with one hand.

The ratio of the space in the first chamber 11 occupied by the first part C1 may be 20% or more and 100% or less, and the ratio of the space in the second chamber 12 occupied by the second part C2 may be 20% or more and 100% or less. It's okay. However, the first portion C1 preferably does not completely fill the first chamber 11, and the second portion C2 preferably does not completely fill the second chamber 12 either. That is, each of the first chamber 11 and the second chamber C2 may contain gas (air or gas other than air that does not affect the contents) in addition to the contents for forming the cosmetics.

It is preferable that the container 1 contains cosmetics for one use. That is, the user can open a new container and use the cosmetic each time the skin-improving cosmetic in this embodiment is used.

Next, how to use the container 1 will be described with reference to FIGS. 4 to 7. FIG. First, as shown in FIG. 4, the user holds the container 1 with the hand H and presses either the first chamber 11 or the second chamber 12 . For example, the container 1 can be held between the thumb and the fingers other than the thumb, and force can be applied. In the example shown in FIG. 4, the user can apply force to the first chamber 11 to increase the pressure within the first chamber 11 . At that time, the user can easily place his or her finger on the upper wall 212 and/or the top wall 211, particularly the upper wall 212, which forms the first chamber 11 and which is part of the second film 3, as described above. It is possible to press the upper portion of the first chamber 11 in the thickness direction with such an operation. Further, since the maximum thickness h1 of the portion where the first chamber 11 is formed as described above is greater than the maximum thickness h2 of the portion where the second chamber 12 is formed, a force is applied to the first chamber 11. Easy to hang. Thereby, the movement of the first part C1 can be directed from the upper side to the lower side.

Due to the increased pressure in the first chamber 11 , the joint of the boundary 31 can be at least partially separated (boundary separation action) and the first chamber 11 and the second chamber 12 can be communicated. Then, during this boundary separation operation, the first portion C1 (and possibly the enclosed gas) contained in the first chamber 11 moves to the second chamber 12 as indicated by the arrow in FIG. pushed out to As a result, the first portion C1 and the second portion C2 come into contact with each other and are mixed. In the above-described boundary separation operation, the first part C1 housed in the first chamber 11 is pushed out into the second chamber 12, and the second part C2 housed in the second chamber 12 is also pushed out into the first chamber 11. can be extruded to This promotes mixing of the first portion C1 and the second portion C2.

Separation of the boundary portion 31 forms an enlarged chamber 13 in which the first chamber 11 and the second chamber 12 are connected, as shown in FIG. The expansion chamber 13 accommodates the first portion C1 and the second portion C2. Here, the user presses the expanding chamber 13 from the outside and repeats the pressing (mixing operation) to cause the contents in the expanding chamber 13 to flow, thereby forming the first portion C1 and the second portion C2. can be mixed more uniformly. In the mixing operation, for example, the contents including the first part C1 and the second part C2 move mainly in the vertical direction as indicated by the arrows in FIG. 5 to mix the two compositions.

As described above, each of the first chamber 11 and the second chamber 12 is filled with gas, and therefore the expansion chamber 13 also contains gas. Therefore, in the mixing operation, the flow of the contents can be promoted, and the first part C1 and the second part C2 can be mixed with less force in a shorter time. In addition, in this embodiment, since the first film 2 and the second film 3 have flexibility, the shape of the space in the first chamber 11 and the second chamber 12 and the shape of the space in the expansion chamber 13 are Since it deforms easily, this also facilitates the mixing action. Therefore, the container 1 according to this embodiment can be used by a weak user without burden.

In addition, when at least one of the first film 2 and the second film 3 is transparent, the user can perform the mixing operation while confirming the mixed state of the contents from the outside.

After mixing the contents in the expansion chamber 13, the tab portion 35 can be cut from the body of the container 1, as shown in FIG. A connection portion of the tab portion 35 with the main body of the container 1 is formed with a constricted portion 38 that is sharply recessed in a plan view. The tab portion 35 can be separated by holding the portion (main body) other than the tab portion 35 with the other hand. By providing a break guide line along the position where the tab portion 35 is to be cut off, the tab portion 35 can be cut off more easily. When the tab portion 35 is cut off, a portion of the upper side of the discharge passage forming portion 18 is cut off at the same time as the cut-off, thereby forming the discharge passage 8 that communicates the enlarged chamber 13 with the outside.

After the discharge passage 8 is formed, as shown in FIG. 7, the mixed skin-improving cosmetic can be discharged, for example, onto the palm of the hand with the discharge passage 8 facing downward (discharging operation). At this time, pressure may be applied to both sides of the container 1 to push out the contents.

Thus, according to this embodiment, the discharge passage 8 can be formed after the cosmetics (the first part C1 and the second part C2) are completely mixed in the sealed space. In addition, there is no fear that the cosmetics will scatter outside the container. Further, since the first chamber 11 and the second chamber 12 respectively contain the required amounts of the first portion C1 and the second portion C2 in advance, the user weighs the first portion C1 and the second portion C2. No need. Further, when the first part C1 and the second part C2 are housed in separate containers, it is necessary to take out the contents from at least one of the containers. Depending on conditions such as humidity, a large amount of the contents may remain in the container, and the first part C1 and the second part C2 may not be mixed at the desired ratio. On the other hand, according to this embodiment, two compositions that have been stored in one container in advance can be mixed in the container. , the skin improving effect of the cosmetic can be sufficiently exhibited.

Although the number of chambers in the container according to this embodiment is two, this embodiment may have one or more additional chambers. Thus, for example, a first chamber 11 containing a first part containing carboxyvinyl polymer, a second chamber 12 containing a second part containing sodium silicate, and a separate A third chamber may be provided containing a composition comprising the components of In that case, the first film 2 and the second film 3 are bonded to the boundary between the third chamber and at least one of the first chamber 11 and the second chamber 12 with a bonding strength weaker than that of the peripheral portion 32. Another boundary may be formed.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments. In addition, the above embodiments can be modified, modified, replaced, added, deleted, combined, etc. within the scope of the claims, and these also belong to the technical scope of the present invention.

1 Two-liquid type skin-improving cosmetic container 2 First film 3 Second film 8 Discharge passage 11 First chamber 12 Second chamber 13 Enlarged chamber 18 Discharge passage forming part 21 First convex wall 22 Second convex wall 31 Boundary part 32 peripheral edge portion 35 tab portion 38 constricted portion 211 top wall (of first convex wall) 212 upper wall (of first convex wall) 213 lower wall (of first convex wall) C1 first part (first composition)
C2 Part 2 (second composition)

Claims (5)

A container for a two-component skin-improving cosmetic in which the first part and the second part are accommodated in a non-contact state,
the first part comprises a carboxyvinyl polymer and water;
the second part comprises sodium silicate and water;
Peripheral portions of the first film and the second film that are superimposed are joined, and a storage space capable of storing a fluid is formed between the first film and the second film,
The accommodation space has a first chamber for accommodating the first portion and a second chamber for accommodating the second portion, and the first chamber and the second chamber are separated from each other by the second chamber. 1. A container, wherein the first film and the second film are separated by a boundary formed by bonding with a bonding strength weaker than that of the peripheral edge. 3. By pressing at least one of the first chamber and the second chamber from the outside, at least a part of the junction of the boundary portion is released, and the first portion and the second portion can be mixed. 1. The container according to 1. 3. A container according to claim 1 or 2, wherein said first film is planar and said second film has a bulging shape. A separable tab portion is formed on the peripheral portion,
4. A container according to any one of claims 1 to 3, wherein separation of the tab portion can form a discharge passage communicating with the first chamber or the second chamber. 5. A container according to any preceding claim, wherein at least one of said first part or said second part comprises glycylglycine.

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