Method and apparatus for producing cosmetic products
The method and apparatus for producing electrospun cosmetic patches with high active ingredient concentrations address application and skin compatibility issues, providing efficient, residue-free, and stable cosmetic products.
Patent Information
- Application Number
- JP2022548883
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-02-13
- Filing Date
- 2021-02-12
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2041-02-12
AI Technical Summary
Existing cosmetic products face challenges such as difficulty in application, residue on fingers and applicators, improper transport and release of active ingredients, and compounds that affect skin health due to lack of compatibility, leading to issues like drying and sensitization.
A method and apparatus for producing a cosmetic patch product using electrospun nanofiber substrates, which are packaged to maintain product integrity and allow high concentrations of active ingredients like hyaluronic acid, using biocompatible polymers and a packaging process that includes electrospinning, heat sealing, and cutting to form sealed packages.
The solution enables efficient, skin-compatible cosmetic products with high active ingredient concentrations, reducing residue and ensuring effective application and skin benefits while maintaining product stability.
Smart Images

Figure 0007825559000001 
Figure 0007825559000002
Abstract
Description
[Technical Field]
[0001] The present invention relates to a method for producing a cosmetic product and a corresponding device. More particularly, the present invention relates to a method and a device for producing a cosmetic patch product and packaging based on a polymeric compound that can be absorbed by the skin and is preferably biocompatible. The cosmetic patch product is composed of fibers, in particular nanofibers, preferably fibers obtained by electrospinning. [Background technology]
[0002] Cosmetics for direct application to the skin, such as emulsions, creams, lotions, serums, gels, powders, oils, sunscreens, etc., are widely known and are manufactured in a variety of forms that are compatible with and / or absorbed by the skin.
[0003] However, these products can be difficult to apply to the skin, require prolonged application or prolonged massage to ensure complete absorption into the dermis, and can leave cosmetic residue on fingers, hands, and applicators. There are also cosmetic products that are generally applied via a fibrous physical support, which facilitates application to the skin, such as makeup remover wipes that are impregnated with special cleansing compositions.
[0004] A drawback of this type of cosmetic product is that after use, the fibrous physical support, which itself has no cosmetic function, and the packaging must be discarded. Furthermore, known fibrous physical supports have certain surfaces that do not allow for proper transport and release of the active ingredient.
[0005] Furthermore, cosmetic compositions for the skin, such as topical applications such as creams or general cosmetic pastes, generally present the problem of providing for the use of functional compounds for the skin and compounds that function exclusively for the structure of the formulation.
[0006] Skin functional compounds are those that are partially or totally absorbed by the skin and exert a beneficial effect on the treated area of the body. Generally, compounds of this type represent so-called active ingredients. The compounds whose sole function is to structure the formulation are those that contribute to obtaining a cosmetic composition, whether it be an emulsion, serum, or fluid, oleolite, water, or gel.
[0007] The effect of compounds that function exclusively in the formulation structure can affect the storage method or the texture of the cosmetic composition before and / or during use, and therefore when spread on the treated skin. For example, compounds that function exclusively in the formulation structure can make the cosmetic composition soft, fluid, or viscous; they can gel and prevent the separation of oily compounds from aqueous compounds in emulsions. Furthermore, compounds that function exclusively in the formulation structure can make the cosmetic composition preserved, especially in the presence of water.
[0008] However, the problem arises that many of the compounds used act on the structure of the formulation, and therefore do not bring any benefit to the skin, and may even cause further deterioration of the treated skin.In fact, some compounds that act only on the structure of the formulation remain irrelevant to the skin, or may cause, for example, further dryness, clogged pores, or the development of allergies, dermatitis, etc.
[0009] Among the compounds that have an exclusive function in the structure of the formulation, for example silicones, petrolatum (e.g. paraffin), alcohols, fragrances, stabilizers, preservatives, emulsifiers have been identified, whose main function is to give the formulation of the cosmetic composition a "silk effect" texture in contact with the skin and / or to provide stability to the oily part, or to increase the viscosity of a gel formulation and / or to increase the emollient and moisturizing effect of an emulsion.
[0010] For example, one problem that arises with these compounds that function exclusively in the structure of the formulation is a lack of skin compatibility, which prevents the skin from breathing and leads, for example, to its progressive drying, pore closure and / or greater sensitization.
[0011] It is also known that the presence of alcohol and preservatives, on the one hand, allows preservation of the cosmetic composition, but on the other hand, increases the sensitization of the skin in the development of dermatitis, allergies or similar pathologies.
[0012] For example, document KR20160070910 describes a method and an apparatus for producing cosmetics, which provides for feeding a sheet-like support along a predetermined path along which there are three electrospinning devices and for electrospinning three different solutions based on biocompatible polymers onto successive layers. The electrospun layer is then covered with a protective sheet that is bonded to the layer of electrospun material by compression, and the finished product, which is not yet fully packaged, is then wound onto a reel. At least one of the solutions to be electrospun comprises a biocompatible polymer, in particular polyvinyl alcohol PVA and / or polyvinylpyrrolidone PVP, and a functional substance, such as a crosslinker.
[0013] US6770286 discloses a method and apparatus for producing a cosmetic patch product, but the patch is not electrospun. In this document, a solution of two cosmetic substances is deposited on a first sheet supplied from a first reel, which is then covered with a second sheet supplied from a second reel. The combination is then compressed and heated in an oven, after which the patch product is separated from the resulting strip. The resulting product is then ready for sale.
[0014] EP 3549758 discloses a sheet-like product comprising a layer of nanofibers obtained by electrospinning, in direct contact with a support layer. The document does not disclose a method for packaging the product, nor an apparatus for carrying out said packaging. [Prior art documents] [Patent documents]
[0015] [Patent Document 1] KR20160070910 [Patent Document 2] US6770286 [Patent Document 3] EP3549758 Summary of the Invention [Problem to be solved by the invention]
[0016] One solution proposed by the applicant to the above problem provides a cosmetic patch product based on a skin-absorbable film substrate, which may contain one or more active ingredients. In particular, the film substrate is manufactured by electrospinning. Preferably, the cosmetic patch product is packaged to protect its cosmetic properties.
[0017] Currently, there are no process or equipment solutions for producing such cosmetics on an industrial scale.
[0018] Therefore, there is a need to achieve a method for producing cosmetic products and a corresponding apparatus that can overcome at least one of the drawbacks of the prior art. In particular, one object of the present invention is to provide a method for producing cosmetics that are already packaged and can maintain the properties of the product.
[0019] Another object of the present invention is to provide an apparatus which makes it possible to produce pre-packaged cosmetic products on an industrial scale. Applicant has conceived, tested and embodied the present invention to overcome the shortcomings of the prior art and to obtain these and other objects and advantages. [Means for solving the problem]
[0020] The invention is defined and characterized in the independent claims. The dependent claims describe other features of the invention or variants to the main inventive idea.
[0021] In accordance with the above objectives, the present invention has devised a method for manufacturing cosmetics that overcomes the limitations of current methods and eliminates the existing drawbacks, and has realized an apparatus for manufacturing cosmetics.
[0022] According to some embodiments, a method for producing a cosmetic product is provided, comprising the step of electrospinning a composition based on a biocompatible polymer material. This step preferably results in the formation of an electrospun film substrate (electrospun film substrate) composed of at least one fiber, more preferably nanofiber. The electrospun film substrate is deposited directly onto a support film fed along a transport path (feed path). The support film can be fed continuously or intermittently.
[0023] Preferably, the electrospinning step is carried out in a controlled atmosphere. Following the electrospinning step, the method provides a step of packaging the resulting electrospun film substrate. In particular, the packaging step provides for obtaining an electrospun film substrate packaged in a package, preferably sealed, more preferably individually. The packaged product thus obtained can be put on the market without further processing.
[0024] According to some embodiments, the packaging step includes a coating step in which a covering film is fed along the transport path and applied to the support film to cover the membrane substrate.
[0025] The packaging step then provides for joining the support film and the cover film together, advantageously so as to form an interior space surrounding the electrospun substrate, and the joining of the support film and the cover film is preferably performed by heat sealing.
[0026] It should be noted that in a preferred embodiment, the cover film covers but is not bonded to the membrane substrate, but is bonded only to the support film so as not to alter or damage the membrane substrate. In particular, the cover film is not pressed against the membrane substrate. Preferably, the heat sealing is performed in the area where the support film and the cover film are in contact with each other, i.e., in the area where there is no membrane substrate between them.
[0027] Advantageously, the support film and the covering film are heat-sealable and are preferably made of polybutylene succinate adipate (PBSA) or polylactic acid (PLA).
[0028] The method preferably also provides a cutting step for cutting the joint between the support film and the cover film containing the cosmetic product, so that the support film and the cover film joined in this way form a package containing the cosmetic product, in which the cosmetic product is actually packaged.
[0029] The package is constructed by joining a support base and a covering layer. The support base is the part of the support film cut, and the covering layer is the part of the covering film cut in the cutting step. Advantageously, the composition based on a biocompatible polymer material comprises a first compound to be electrospun and a spinning promoter. The spinning promoter has the function of assisting (promoting) the spinning of the first compound, in particular the function of establishing the electrospinning process to obtain normal fibers.
[0030] The first compound to be electrospun is a biocompatible polymer suitable for electrospinning and is selected from the group consisting of a first polysaccharide, collagen, hydroxypropyl methylcellulose (HPMC), and derivatives thereof. Note that the first polysaccharide is selected from polysaccharides, i.e., can be any polysaccharide.
[0031] Preferably, the first polysaccharide of the composition is selected from hyaluronic acid HA, starch, amylose, cellulose, chitosan, glycogen, pectin, and agar.
[0032] The spinning aid is a carrier polymer, which may or may not contain a filler, selected from the group consisting of a second polysaccharide that is chemically different from the first polysaccharide, and may also have poly(oxyethylene) PEO present. Preferably, the carrier polymer may also be filler-free and biocompatible. Like the first polysaccharide, the second polysaccharide can be selected from polysaccharides, i.e., any polysaccharide, as long as it is chemically different from the first polysaccharide. The phrase "chemically different from the first polysaccharide" means that the first polysaccharide and the second polysaccharide are two molecules with different chemical structures.
[0033] Suitably, the second polysaccharide of the composition is selected from alginate and pullulan. Preferably, the electrospinning aid is selected from pullulan and a mixture of alginate and poly(oxyethylene). Also, according to some embodiments, the composition comprises an active ingredient, which may be selected from, for example, a polypeptide.
[0034] One advantage of such a method is that it allows the preparation of cosmetics with, for example, much higher topical concentrations of hyaluronic acid than those obtained with conventional formulations. With known methods, it is virtually impossible to achieve high concentrations, even with hyaluronic acid, polysaccharides, collagen, hydroxypropylmethylcellulose HPMC, and their low molecular weight derivatives, because the viscosity of the product increases too much and it is not possible to exceed 5-10% by weight. The composition of the invention makes it possible to obtain cosmetic products that can be applied to the skin with hyaluronic acid in concentrations of up to 50% by weight.
[0035] According to one aspect, there is also provided an apparatus for producing cosmetic products, comprising a station for supplying a support film, an electrospinning station, and a packaging unit. Preferably, the packaging unit comprises a station for supplying a cover film and a station for joining the support film and the cover film to each other. These stations are arranged consecutively along a transport path for the support film.
[0036] Preferably, the apparatus also includes a cutting station for cutting the joint between the support film and the covering film enclosing the cosmetic product. The cutting station can be located downstream of the station for joining the films together or can be coincident with it. That is, the station for joining the films together can include the joining and cutting device.
[0037] The support and cover films are advantageously supplied by suitable supply members, for example of the belt conveyor type, which are preferably arranged at an intermediate position between the supply station corresponding to each film and the cutting station. [Brief explanation of the drawings]
[0038] These and other aspects, features and advantages of the present invention will become apparent from the following description of some embodiments thereof, given by way of non-limiting example with reference to the accompanying drawings, in which: [Figure 1] FIG. 1 is a schematic diagram of an apparatus for producing cosmetic products according to one embodiment. [Figure 2] FIG. 2 is a plan view of a packaged cosmetic product obtained with the apparatus of FIG. DETAILED DESCRIPTION OF THE INVENTION
[0039] For ease of understanding, the same reference numbers have been used, wherever possible, in the figures to identify the same common elements, it being understood that elements and features of one embodiment may be advantageously incorporated in other embodiments without further clarification.
[0040] Reference will now be made in detail to possible embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention and should not be understood as a limitation thereof. For example, one or more features shown or described as part of one embodiment can be changed or employed on or in conjunction with other embodiments to produce yet another embodiment. It is understood that the invention includes all such modifications and variations.
[0041] Before describing these embodiments, it should also be made clear that this specification is not limited in its application to the details of construction and the arrangement of components set forth in the following description using the accompanying drawings. This specification is capable of other embodiments and of being obtained or carried out in various other ways. It should also be made clear that the phraseology and terminology used herein is for the purpose of description only and should not be regarded as limiting.
[0042] 1 shows a schematic diagram of an apparatus 10 for producing packaged cosmetic products. The apparatus 10 comprises, in order, a station 11 for supplying a support film 21, an electrospinning station 12, a station 13 for supplying a cover film 23, and a station 14 for bonding the support film 21 and the cover film 23 together. The station 13 for supplying the cover film 23 and the station 14 for bonding the films 21 and 23 together form a packaging unit 15. Preferably, the support film 21 and the cover film 23 are made of a heat-sealable material, such as polybutylene succinate adipate (PBSA) or polylactic acid (PLA), and they can both be made of the same material or they can be made of two different materials.
[0043] The station 11 for supplying the support film 21 preferably has a reel 21A of the support film 21. The support film 21 is fed from the reel 21A along a transport path (feed path), advantageously oriented in a feed direction A. In the example shown, this feed direction A is contained in the plane of the sheet, is horizontal and points to the right. However, other orientations can also be provided. Conveniently, the electrospinning station 12 and the packaging unit 15, i.e. the station 13 for supplying the covering film 23 and the interconnection station 14, are arranged along the transport path of the support film 21.
[0044] The electrospinning station 12 in turn comprises an electrospinning device provided with an electrospinning head 120 having corresponding delivery (supply) members 121, for example needles. The electrospinning apparatus also preferably comprises a collector 122 made of an electrically conductive material, for example a metal, positioned facing the delivery member 121 . The electrospinning device is positioned so that the support film 21 slides in at an intermediate position between the delivery member 121 and the collector 122, and the electrospun fibers are deposited directly onto the support film 21 at the exit from the delivery member 121. The support film 21 may slide against the collector 122 or may slide at a distance therefrom.
[0045] The electrospinning apparatus 120 is of a known type and comprises means for feeding the composition towards the head 120, and a voltage generator connected to the electrospinning head 120 and the metal collector 122 for applying an electric field between the two, the electric field preferably having a potential difference greater than 8 kV.
[0046] In the illustrated example, the electrospinning head 120 is oriented so that the delivery member 121 is vertically oriented toward the bottom and thus the support film 21 below the head 120. In this way, gravity is utilized in addition to the electric field to further assist in the formation of the electrospun fibers. Alternatively, the electrospinning head 120 and collector 122 can be arranged horizontally side by side, or they can be arranged vertically with the delivery member 121 facing upward and the collector 122 above the electrospinning head 120. In such cases, the electric field must be such that it overcomes gravity.
[0047] To guide the deposition of electrospun nanofibers in a predetermined area, openings with controlled shapes and sizes can be provided, and a mask made of insulating material such as Teflon can also be applied, thus preventing material waste. Preferably, the electrospinning apparatus is enclosed within a sealed chamber (not shown in FIG. 1 for simplicity) so that the atmosphere therein can be controlled.
[0048] Corresponding to the electrospinning station 12, a membrane-type electrospun substrate 22 (electrospun substrate) is produced, which is deposited directly on a support film 21. As a result, the electrospun substrate 22 is transported along a transport path by the support film 21 and then passes through subsequent stations 13 which provide a coating film 23 and stations 14 which bond the films together. Preferably, the electrospun substrate 22 is in the form of a nonwoven fabric.
[0049] The station 13 for supplying the coating film 23 conveniently includes a reel 23A on which the coating film 23 is supplied. The reel 23A of the coating film 23 is positioned on the side of the support film 21 on which the electrospun substrate 22 is deposited. The coating film 23 is then placed over and overlaps the support film 21 so as to completely cover the electrospun substrate 22.
[0050] The two overlapping films 21, 23 and the electrospun substrate 22 are then conveyed together through a film-together bonding station 14. This station conveniently comprises a device 24 for bonding the films together, such as a heat sealer of known type.
[0051] The heat sealer 24 preferably performs longitudinal seals corresponding to the two outer edges (outer edges) of the film of the support 21 and coating 23, and at least one transverse seal of the film between the two electrospun substrates 22. Longitudinal and transverse are meant here with respect to the feed direction A of the support film 21, as defined above.
[0052] The heat sealer can be configured to act only on the films 21, 23 to be joined together, and not on the electrospun substrate 22. For example, as shown in the drawing, it is possible to form a continuous electrospun substrate 22 and provide a transverse seal between two continuous electrospun substrates 22.
[0053] The device 10 for producing packaged cosmetic products also preferably comprises a cutting station, whereby the mutually joined films 21, 23 are correspondingly cut. The cutting is performed transversely to the feed direction A, conveniently corresponding in particular to the transverse heat seal between the two electrospun substrates 22. In this way, a hermetically closed cosmetic product is obtained between a portion of the support film 21 and a portion of the cover film 23, these two portions forming respectively the support substrate and the cover layer of the package 30 for packaging the cosmetic product, as shown in Figure 2.
[0054] According to some embodiments, the cutting station is arranged downstream of and therefore separate from the mutual splicing station 14. Alternatively, the cutting station can be integrated into the mutual splicing station 14. In this case, the joining device 24 can also be a cutting device.
[0055] Conveniently, package 30 comprises four heat seals 31, 32, 33, and 34 corresponding to its four outer edges. The four heat seals 31, 32, 33, and 34 define spaces 35 therebetween (formed between the support substrate and the coating layer) within which the cosmetic product is hermetically enclosed. Preferably, electrospun substrate 22 is spaced apart from, i.e., does not contact, any of heat seals 31, 32, 33, and 34, as shown schematically in FIG. 2.
[0056] The cosmetic product advantageously comprises at least one active ingredient, for example selected from peptides, amino acids, antioxidants and vitamins. The active ingredient can be incorporated into the electrospun composition and thus be included in the cosmetic product directly from its electrospinning, or can be included in the membrane substrate 22 after electrospinning. In this case, it is advantageous to provide a special functionalization station, not shown in Figure 1, arranged between the electrospinning station 12 and the station 13 for supplying the coated film 23.
[0057] According to some embodiments, the apparatus also comprises a cosmetic stabilization station located along the transport path after the electrospinning station 12 and preferably before the station 13 for supplying the coating film 23. The stabilization of the electrospun fibers is carried out in this station (not shown), for example by heat treatment or by spraying with a stabilizing compound, for example a crosslinking agent, especially if the fibers comprise alginate.
[0058] It should be noted that preferably the support film 21 and the covering film 23 are fed, i.e. moved, by respective conveying members (feeding members) arranged at intermediate positions between the respective feeding stations 11, 13 and the cutting station, and preferably these conveying members each consist of a belt conveyor.
[0059] According to another aspect, the present invention relates to a method for producing packaged cosmetic products, which can be carried out by the apparatus 10 described above. The method provides for feeding a support film 21 along a conveying path, which advantageously passes through an electrospinning station 12 and a packaging unit 15.
[0060] According to some embodiments, the packaging unit 15 comprises a station 13 for supplying a cover film 23 and a station 14 for joining the support film 21 and the cover film 23 to one another.
[0061] Corresponding to the electrospinning station 12, a step of electrospinning a composition based on a biocompatible polymer material is carried out, thereby forming at least one electrospun fiber, preferably a nanofiber, which can be deposited directly on the support film 21 or, by using a special mask of insulating material, in one or more predetermined areas. Preferably, the electrospinning step is carried out under controlled atmosphere, for example under controlled humidity and / or controlled temperature conditions, and may be carried out in an inert gas atmosphere such as argon or nitrogen.
[0062] According to some embodiments, the polymeric material-based composition comprises a first compound to be electrospun, which also comprises a biocompatible polymer suitable for being electrospun, selected from the group consisting of a first polysaccharide, collagen, hydroxypropyl methylcellulose HPMC, and derivatives thereof. It should be noted that the first polysaccharide is selected from polysaccharides, ie, can be any polysaccharide. Preferably, the first polysaccharide of the composition is selected from hyaluronic acid HA, starch, amylose, cellulose, chitosan, glycogen, pectin, and agar.
[0063] According to some embodiments, the first compound to be electrospun comprises hyaluronic acid. This first compound can comprise linear hyaluronic acid mixed with cross-linked hyaluronic acid. Preferably, the hyaluronic acid has a molecular weight below 10,000 Da (Daltons). This molecular weight is advantageous for the complete absorption of hyaluronic acid by the skin.
[0064] The composition based on a biocompatible polymer material also contains a spinning aid, whose function is to facilitate at least the initial spinning step of the first compound. The spinning aid is selected from the group consisting of a second polysaccharide (polysaccharide) that is chemically different from the first polysaccharide, and poly(oxyethylene) PEO may also be present. Advantageously, the carrier polymer without filler is also biocompatible. Like the first polysaccharide, the second polysaccharide is selected from polysaccharides, i.e., it can be any polysaccharide as long as it is chemically different from the first polysaccharide. Preferably, the second polysaccharide of the composition is selected from alginate and pullulan.
[0065] Preferably, the electrospinning aid is selected from alginate mixed with pullulan and poly(oxyethylene).
[0066] The cosmetic product obtained during the electrospinning step consists of an electrospun film substrate, which has at least one fiber, preferably a nanofiber, consisting of the electrospun first compound of the composition described above, where nanofiber means a fiber whose diameter is on the order of nanometers, more particularly a fiber whose diameter is less than 10 μm.
[0067] After the electrospinning step, a product packaging step is carried out, which corresponds to a station 13 for providing a coating film 23, which is placed on top of the support film 21 on the side on which the electrospun substrate 22 formed in the previous electrospinning step has been deposited. In this way, the coating film 23 completely covers the electrospun substrate 22.
[0068] Next, a step of bonding the support film 21 and the cover film 23 to each other is provided, corresponding to the bonding station 14. In this step, the bonding is preferably airtight, forming a space between the two films 21, 23 and enclosing the electrospun substrate 22 therein. In other words, the two films 21, 23 are bonded around the electrospun substrate 22. Preferably, the two films 21, 23 are bonded longitudinally corresponding to their longitudinal ends and transversely corresponding to the intermediate position between two consecutive substrates 22.
[0069] As already mentioned, the films 21, 23 are preferably joined to one another by heat sealing.
[0070] Following or simultaneously with the step of joining the films 21, 23, a step of cutting the films is performed to separate the joined film portions located between the two transverse joints or seals and encapsulating the electrospun substrate 22. This results in a packaged cosmetic product.
[0071] The packaged product is ready to be marketed and / or stored for a predetermined period of time because package 30 defines an interior space 35 hermetically closed by seals 31, 32, 33, 34, within which membrane substrate 22 is contained. Advantageously, the package consists of a portion of support film 21 and a portion of coating film 23 joined together, the portion of support film 21 forming the support substrate and the portion of coating film 23 forming the coating layer.
[0072] When the end user desires to use the cosmetic product, it is sufficient to remove the coating layer or a portion thereof to expose the electrospun substrate 22. The electrospun substrate 22 is already disposed on its supporting substrate and is therefore ready for use.
[0073] According to some embodiments, the method also includes a step of functionalizing the membrane substrate 22, which corresponds to a functionalization station and is carried out between the electrospinning step and the coating step, providing that at least one active ingredient, preferably selected from polypeptides, is added to the electrospun substrate 22.
[0074] According to some embodiments, the method also includes a step of stabilizing the membrane substrate 22, preferably performed between the electrospinning and coating steps, corresponding to a stabilization station, which provides for a heat treatment of the membrane substrate or a spraying of a stabilizing compound, which may be a cross-linking agent.
[0075] It will be apparent that modifications and / or additions of portions or steps may be made to the apparatus and methods as hereinbefore described without departing from the field and scope of the present invention as defined by the claims.
[0076] Furthermore, although the present invention has been described with reference to several specific examples, it is clear that a person skilled in the art will certainly be able to achieve many other equivalent forms of methods and devices for producing cosmetic products having the characteristics as defined in the claims, and therefore all falling within the field of protection defined thereby.
[0077] In the following claims, references in parentheses are for ease of reading only and shall not be considered as limiting elements with respect to the field of protection claimed in a particular claim.
Claims
1. 1. A method for producing a packaged cosmetic product, comprising: conveying a support film (21) along a conveying path; Electrospinning a composition based on polymers and biocompatible materials, which forms an electrospun substrate (22) and is deposited directly on the transported support film (21); packaging the electrospun substrate (22); Equipped with The packaging step includes: feeding a covering film (23) along the transport path and attaching it onto the support film (21) so as to cover the electrospun substrate (22), thereby covering the electrospun substrate (22); and joining the support film (21) and the covering film (23) to each other, The composition based on a polymer and a biocompatible material comprises a first compound to be electrospun and a spinning aid; the electrospun first compound is selected from the group consisting of a first polysaccharide (excluding pullulan and alginate), collagen, hydroxypropyl methylcellulose, and derivatives thereof; the spinning aid is selected from the group consisting of a second polysaccharide that is chemically different from the first polysaccharide; 10. The method of claim 9, wherein the first compound to be electrospun comprises hyaluronic acid and the spinning aid comprises pullulan and / or a mixture of alginate and polyoxyethylene.
2. 2. The method according to claim 1, wherein the step of bonding the support film (21) and the covering film (23) to each other is characterized in that the support film (21) and the covering film (23) are bonded in the areas where they are in contact with each other.
3. The method according to claim 1 or 2, characterized in that in the step of bonding the support film (21) and the covering film (23) to each other, the support film (21) and the covering film (23) are bonded to each other so as to form an internal space (35) surrounding the electrospun substrate (22).
4. The method according to any one of claims 1 to 3, characterized in that after the packaging step, a cutting step is included in which the portion surrounding the electrospun substrate (22) and where the support film (21) and the covering film (23) are joined to each other is cut.
5. 2. The method of claim 1, wherein the electrospun first compound other than the hyaluronic acid is selected from starch, amylose, cellulose, chitosan, glycogen, pectin, and agar.
6. An apparatus for producing packaged cosmetics, a station (11) for supplying a support film (21); an electrospinning station (12); a packaging unit (15) disposed next along the transport path of the support film (21); The packaging unit (15) comprises a station (13) for supplying a covering film (23) and a station (14) for joining the support film (21) and the covering film (23) together; An apparatus characterized in that in said electrospinning station (12) an electrospun substrate (22) is deposited directly onto a provided support film (21).
7. The station (14) for joining the support film (21) and the covering film (23) together is a station (14) for joining the support film (21) and the covering film (23) together.
7. The device according to claim 6, characterized in that it is configured to join the support film (21) and the covering film (23) in the area where they are joined.
8. The electrospinning station (12) comprises an electrospinning device having an electrospinning head (120) to which an electric field is applied and a collector (122); 8. Apparatus according to claim 6 or 7, characterized in that the electrospinning device is arranged so that the support film is fed between the electrospinning head (120) and the collector (122).
9. 9. The device according to claim 7 or 8, characterized in that it comprises a cutting station arranged downstream of the splicing station (14) along the transport path of the support film (21) or integrated into the splicing station (14).
10. 10. The device according to claim 9, characterized in that the supply member for the support film (21) is arranged at an intermediate position between the station (11) and the cutting station, and the supply member for the cover film (23) is arranged at an intermediate position between the station (13) and the cutting station.
11. It is a packaged cosmetic product, An electrospun substrate (22) wrapped in a packaging body (30), The packaging (30) is comprised of a support substrate and a covering layer joined together to define an interior space (35) that accommodates the electrospun substrate (22); A packaged cosmetic product, characterized in that the packaged cosmetic product is obtained by the method according to any one of claims 1 to 5.
12. It is a packaged cosmetic product, An electrospun substrate (22) wrapped in a packaging body (30), The packaging (30) is comprised of a support substrate and a covering layer joined together to define an interior space (35) that accommodates the electrospun substrate (22); The packaged cosmetic product is obtained by the device according to any one of claims 6 to 10, the electrospun substrate (22) is an electrospun polymer and biocompatible material-based composition comprising an electrospun first compound and a spinning aid; the electrospun first compound is selected from the group consisting of a first polysaccharide (excluding pullulan and alginate), collagen, hydroxypropyl methylcellulose, and derivatives thereof; the spinning aid is selected from the group consisting of a second polysaccharide that is chemically different from the first polysaccharide; 1. A packaged cosmetic product, characterized in that the first compound to be electrospun comprises hyaluronic acid, and the spinning aid comprises pullulan and / or a mixture of alginate and polyoxyethylene.
13. 13. The packaged cosmetic product according to claim 11 or 12, wherein the internal space (35) is defined by at least one heat seal (31, 32, 33, 34) that joins the supporting substrate and the coating layer together.
Citation Information
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