IT201800007690A1 - Graphene as a texturizing and functional agent in cosmetic lip products - Google Patents
Graphene as a texturizing and functional agent in cosmetic lip products Download PDFInfo
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- IT201800007690A1 IT201800007690A1 IT102018000007690A IT201800007690A IT201800007690A1 IT 201800007690 A1 IT201800007690 A1 IT 201800007690A1 IT 102018000007690 A IT102018000007690 A IT 102018000007690A IT 201800007690 A IT201800007690 A IT 201800007690A IT 201800007690 A1 IT201800007690 A1 IT 201800007690A1
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- 229910021389 graphene Inorganic materials 0.000 title claims description 40
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
- A61Q1/06—Lipsticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
Description
DESCRIZIONE DESCRIPTION
CAMPO DELL'INVENZIONE FIELD OF THE INVENTION
La presente invenzione attiene al campo dei prodotti cosmetici applicabili alle labbra quali rossetti, stick, balm, emulsioni, geli, ecc. Si descrivono nuove composizioni per la protezione e make-up delle labbra contenenti grafene. The present invention relates to the field of cosmetic products applicable to lips such as lipsticks, sticks, balms, emulsions, gels, etc. We describe new compositions for the protection and make-up of the lips containing graphene.
STATO DELLA TECNICA STATE OF THE TECHNIQUE
Il mercato globale di prodotti per make-up è in continua crescita, alimentata da una richiesta di colori e texture innovative accanto a performance in grado di conferire effetti benefici multifunzionali. The global market for make-up products is constantly growing, fueled by a demand for innovative colors and textures alongside performances capable of conferring multifunctional beneficial effects.
Le labbra, in primo piano nella attuale cosmesi decorativa, richiedono colori intensi ma anche caratteristiche applicative eccellenti quali skin feel, durata, facilità di applicazione, resistenza all’acqua e proprietà multifunzionali quali idratazione, protezione solare, ecc. Lips, in the foreground in current decorative cosmetics, require intense colors but also excellent application characteristics such as skin feel, durability, ease of application, water resistance and multifunctional properties such as hydration, sun protection, etc.
Nello stesso tempo occorre tener conto del fatto che il consumatore è rivolto sempre di più a prodotti formulati con ingredienti naturali ed eco-friendly. Nell’analisi delle proprietà di un cosmetico per le labbra occorre valutare anche la capacità del cosmetico stesso di suscitare nel consumatore sensazioni gradevoli, come la sensorialità del prodotto. Sempre più importante sta diventando l'analisi sensoriale nel settore cosmetico. Le proprietà reologiche e sensoriali dei prodotti per labbra sono molto legate al mix di lipidi fluidi e cere che li costituiscono che presentano natura chimica diversa, dai prodotti di origine vegetale (es. trigliceridi, alcoli, acidi grassi) agli idrocarburi (derivati dal petrolio, es. parafinum liquidarli) ai prodotti di sintesi ottenuti da rielaborazione di sostanze naturali At the same time it must be taken into account that the consumer is increasingly turning to products formulated with natural and eco-friendly ingredients. In analyzing the properties of a cosmetic for the lips, it is also necessary to evaluate the ability of the cosmetic itself to arouse pleasant sensations in the consumer, such as the sensoriality of the product. Sensory analysis is becoming increasingly important in the cosmetic sector. The rheological and sensory properties of lip products are closely linked to the mix of fluid lipids and waxes that constitute them which have a different chemical nature, from products of vegetable origin (e.g. triglycerides, alcohols, fatty acids) to hydrocarbons (derived from petroleum, eg parafinum liquid them) to synthetic products obtained by reworking natural substances
Nel caso del prodotto decorativo, stick o balm, gel o emulsione, la miscela di cere, oli e grassi viene usata come mezzo di dispersione di coloranti e additivi. In the case of the decorative product, stick or balm, gel or emulsion, the mixture of waxes, oils and fats is used as a dispersion medium for dyes and additives.
Molti sono i requisiti richiesti per la formulazione di un prodotto per labbra e ancora di più per un rossetto in quanto oltre alla facilità di applicazione (film omogeneo e flessibile, stabilità...), si aggiungono i problemi relativi alla dispersione dei pigmenti, all’effetto leggero ma coprente, alla lucentezza, alle caratteristiche funzionali (emollienza, protezione, tollerabilità sulle mucose....} e a quelle sensoriali già citate quali gradevolezza, tocco setoso e morbido ma non appiccicoso. E’ indispensabile un perfetto equilibrio dei componenti del rossetto per poter realizzare una base con le idonee caratteristiche tecnologiche e sensoriali. Le più importanti in un rossetto sono determinate dal punto di goccia (contatto soffice con le labbra), carico di rottura (per evitare fessurazioni o spaccature), punto di rammollimento (resistenza e facile applicazione a varie condizioni di temperatura). Sebbene molta ricerca sia stata condotta per cercare di ottenere i suddetti effetti cosmetici, pochi sono i lavori che valutano il carattere protettivo in prodotti cosmetici per le labbra. Ciò rappresenta un limite importante: perché la radiazione luminosa UV, può creare un danno all’epitelio labiale per gli utenti maggiormente fotosensibili, specialmente durante la stagione estiva durante la quale l’esposizione solare è maggiore; tale problema è aggravato dal fatto che le labbra non contengono melanociti e non vengono normalmente protette con creme solari. Sebbene siano noti stick fotoprotettivi per le labbra in settori specializzati (tipicamente per l’esposizione alle alte quote di sciatori, alpinisti, ecc.), questi prodotti non hanno un’idonea texture cosmetica e presentano a loro volta problemi di stendibilità, uniformità di copertura, ecc.; risulta peraltro poco pratico e cosmeticamente fallimentare stratificare, sulle labbra trattate con tali prodotti, un rossetto o altro prodotto per labbra con funzione cosmetica. D’altro canto, non è facile ottenere prodotti per labbra che soddisfino contemporaneamente/ efficacemente alla funzione cosmetica e fotoprotettiva. There are many requirements for the formulation of a lip product and even more for a lipstick as in addition to the ease of application (homogeneous and flexible film, stability ...), there are also problems related to the dispersion of pigments, 'light but covering effect, to the shine, to the functional characteristics (emolliency, protection, tolerability on the mucous membranes ...} and to the sensory ones already mentioned such as pleasantness, silky and soft but not sticky touch. A perfect balance of the components of the lipstick in order to create a base with suitable technological and sensory characteristics. The most important in a lipstick are determined by the drop point (soft contact with the lips), breaking load (to avoid cracks or splits), softening point (resistance and easy application under various temperature conditions.) Although much research has been conducted to try to achieve the aforementioned effects so metic, there are few works that evaluate the protective character in cosmetic products for the lips. This represents an important limitation: because the UV light radiation can create damage to the lip epithelium for the most photosensitive users, especially during the summer season when sun exposure is greater; this problem is aggravated by the fact that the lips do not contain melanocytes and are not normally protected with sun creams. Although photoprotective lip sticks are known in specialized sectors (typically for exposure to high altitudes by skiers, mountaineers, etc.), these products do not have a suitable cosmetic texture and in turn present problems of spreadability, uniformity of coverage. , etc.; however, it is impractical and cosmetically unsuccessful to lay a lipstick or other lip product with a cosmetic function on the lips treated with such products. On the other hand, it is not easy to obtain lip products that simultaneously / effectively satisfy the cosmetic and photoprotective function.
SOMMARIO SUMMARY
La presente invenzione è diretta a nuove composizioni per l’applicazione sulle labbra in varie forme chimi co -fisiche (stick, balm, emulsioni, oilgel, waxgel) allo scopo di proteggerle o di abbellirle con un effetto cosmetico di make-up. Tali composizioni contengono grafene in combinazione con gli eccipienti adatti alla produzione delle forme cosmetiche previste. Si è osservato che l’inserimento di grafene in concentrazione in peso variabile (generalmente 0,05-5 %) nei prodotti applicati sulle labbra presenta molti effetti positivi non ancora conosciuti in quanto non esiste nella letteratura scientifica e brevettuale l’applicazione del grafene in prodotti per labbra. Il grafene conferisce ottime proprietà reologiche, fisiche, funzionali e sensoriali ai formulati (creando un film flessibile e modulando il punto di goccia nei rossetti) oltre ad una maggiore stabilità riducendo l’indesiderato danno fotoossidativo (comportamento antiossidante) . Il grafene è risultato inoltre conferire, in associazione con eccipienti e pigmenti comunemente utilizzati in prodotti per labbra, una colorazione cosmeticamente gradevole e naturale, coniugando così in modo efficace le esigenze di un prodotto per labbra ad elevato valore cosmetico e con una forte componente foto-protettiva. L’invenzione permette quindi di accedere a nuovi prodotti cosmetici per le labbra (ad es. rossetti per il make up delle labbra), migliorati dal punto di vista della componente di foto-protezione; analogamente rende disponibili nuovi prodotti destinati alla foto-protezione delle labbra (ad es. stick per sportivi), migliorati dal punto di vista della prestazione cosmetica. The present invention is aimed at new compositions for application on the lips in various chemical and physical forms (stick, balm, emulsions, oilgel, waxgel) in order to protect or embellish them with a cosmetic make-up effect. Such compositions contain graphene in combination with the excipients suitable for the production of the envisaged cosmetic forms. It has been observed that the inclusion of graphene in variable weight concentration (generally 0.05-5%) in the products applied to the lips has many positive effects not yet known as the application of graphene in the scientific and patent literature does not exist in lip products. Graphene gives excellent rheological, physical, functional and sensory properties to the formulations (creating a flexible film and modulating the dropping point in lipsticks) as well as greater stability by reducing unwanted photooxidative damage (antioxidant behavior). Graphene was also found to confer, in association with excipients and pigments commonly used in lip products, a cosmetically pleasing and natural color, thus effectively combining the needs of a high cosmetic value lip product with a strong photo- protective. The invention therefore allows access to new cosmetic products for the lips (eg lipsticks for lip make-up), improved from the point of view of the photo-protection component; similarly, it makes available new products intended for the photo-protection of the lips (eg stick for sportsmen), improved from the point of view of cosmetic performance.
DESCRIZIONE DELLE FIGURE DESCRIPTION OF THE FIGURES
Figura 1: Lipbalm: Esempio 1 (A); Esempio 2 (B). Figure 1: Lipbalm: Example 1 (A); Example 2 (B).
Figura 2: Rossetto Matt: Esempio 5 (A); Esempio 6 (B). Figure 2: Matt Lipstick: Example 5 (A); Example 6 (B).
Figura 3: Rossetto effetto glossi Esempio 7 (A); Esempio 8 (B) Figure 3: Glossy lipstick Example 7 (A); Example 8 (B)
DESCRIZIONE DETTAGLIATA DELL’INVENZIONE DETAILED DESCRIPTION OF THE INVENTION
La presente invenzione è rivolta a nuove composizioni da applicare sulle labbra allo scopo di proteggerle dai problemi legati all’ambiente (freddo, vento, radiazione solare, inquinamento). La protezione dalla radiazione solare è particolarmente importante data la mancanza di melanociti, nella zona di applicazione, in grado di esercitare un’azione di protezione dai raggi solari nocivi. La presente invenzione è rivolta anche a proteggere e allo stesso tempo abbellire le labbra con un effetto cosmetico di make-up. The present invention is aimed at new compositions to be applied on the lips in order to protect them from problems related to the environment (cold, wind, solar radiation, pollution). Protection from solar radiation is particularly important given the lack of melanocytes in the area of application, capable of protecting against harmful sun rays. The present invention is also aimed at protecting and at the same time beautifying the lips with a cosmetic make-up effect.
Le composizioni in oggetto, di cui si riportano alcuni esempi non limitativi, contengono grafene in combinazione con gli eccipienti adatti alla formulazione delle forme cosmetiche previste oggetto della presente domanda. The compositions in question, of which some non-limiting examples are given, contain graphene in combination with the excipients suitable for the formulation of the cosmetic forms envisaged as the subject of the present application.
Ai lini della presente domanda, per grafene si intende grafene prodotto da grafite naturale e ottenuto per espansione fisica. E’ preferibilmente un prodotto particolato le cui particelle hanno dimensioni comprese tra 0,5 e 20 μm . Una forma preferita di grafene che risponde ai suddetti requisiti è distribuita da For the purposes of this application, by graphene we mean graphene produced from natural graphite and obtained by physical expansion. It is preferably a particulate product whose particles have dimensions between 0.5 and 20 μm. A preferred form of graphene that meets the above requirements is distributed by
come “Progress Graphene”. Il grafene è preferibilmente utilizzato ad una concentrazione in peso compresa tra 0,05 e 5%, più preferibilmente tra 0,08 e 1%, sul peso della composizione; concentrazioni superiori ai suddetti limiti possono anche essere inoltre utilizzate. such as "Progress Graphene". Graphene is preferably used at a concentration by weight of between 0.05 and 5%, more preferably between 0.08 and 1%, on the weight of the composition; concentrations above the aforementioned limits can also be used.
Nella presente invenzione, il grafene in presenza della fase lipofila presente nei formulati (in presenza di biossido di titanio e pigmenti) conferisce caratteristiche ideali di ricopertura delle labbra senza appesantire la superficie della pelle particolarmente sensibile. Esercita inoltre un’azione che migliora la spreadability del prodotto, sia del lip balm protettivo che del rossetto che si stendono più facilmente. Questo aspetto è molto importante ad esempio negli stick protettivi che sono in genere difficili da stendere soprattutto quando applicati in montagna a bassa temperatura. In the present invention, graphene in the presence of the lipophilic phase present in the formulations (in the presence of titanium dioxide and pigments) confers ideal characteristics of covering the lips without weighing down the surface of the particularly sensitive skin. It also has an action that improves the spreadability of the product, both of the protective lip balm and of the lipstick that spread more easily. This aspect is very important for example in protective sticks which are generally difficult to apply especially when applied in the mountains at low temperatures.
Un punto particolarmente importante nella formulazione di rossetti riguarda l’adesione del colore alle labbra onde evitare sbavature o macchie di colore per il quale in genere nei formulati vengono utilizzati copolimeri sintetici per aumentare l’adesione del colore. A particularly important point in the formulation of lipsticks concerns the adhesion of color to the lips in order to avoid smudges or spots of color for which synthetic copolymers are generally used in the formulations to increase color adhesion.
Vengono anche usati derivati poliossipropilenici per dar e spalmabilità e brillantezza, simili all’effetto dei siliconi. Questi problemi sono superati nella presente invenzione con l’uso del grafene che, anche quando presente in piccola percentuale nella formula, conferisce al prodotto le proprietà desiderate in termini di distribuzione omogenea del colore, maggiore brillantezza e copertura associata ad una più prolungata permanenza sulle labbra. Questa è dovuta alla sua particolare struttura e alla idrorepellenza. Polyoxypropylene derivatives are also used to give spreadability and shine, similar to the effect of silicones. These problems are overcome in the present invention with the use of graphene which, even when present in a small percentage in the formula, gives the product the desired properties in terms of homogeneous color distribution, greater brilliance and coverage associated with a longer stay on the lips. . This is due to its particular structure and water repellency.
Nella presente invenzione, il grafene svolge anche un’azione ritardante nei riguardi dell’ossidazione particolarmente utile in questa tipologia di prodotti in cui i componenti lipofili sono soggetti all’autossidazione o a fenomeni di fotoossidazione indotta ad esempio da ossidi quali biossido di titanio e ossido di zinco (se presenti). In the present invention, graphene also has a retarding action with regard to oxidation, which is particularly useful in this type of products in which the lipophilic components are subject to self-oxidation or photo-oxidation phenomena induced for example by oxides such as titanium dioxide and oxide of zinc (if any).
Nella presente invenzione, il grafene esercita inoltre un forte effetto quale booster di SPF ( sun protection factor) , molto importante e richiesto sia in prodotti protettivi che in prodotti per make-up (rossetti) anche senza l’impiego di filtri chimici (esempi 2 e 6). Il grado di protezione UV (SPF) ottenuto dai presenti prodotti può essere valutato con mezzi di analisi comunemente noti nell’industria cosmetica: nelle prove sperimentali qui allegate, è stata effettuata un’analisi in vitro della trasmittanza diffusa utilizzando uno spettrofotometro Labsphere UV-2000S dotato di sfera integratrice che permette la valutazione di campioni opachi. La trasmittanza è la percentuale di radiazione UV che passa attraverso il campione senza essere riflessa o assorbita da questo. Nell’ambito della presente invenzione sono stati ottenuti prodotti con significativi valori di SPF (ovvero superiori a 6, o superiori a 10, ad es. compresi tra 12 e 25), utilizzando concentrazioni anche molto basse di grafene senza necessità di ricorrere a filtri chimici e prodotti correlati. In the present invention, graphene also exerts a strong effect as a booster of SPF (sun protection factor), very important and required both in protective products and in make-up products (lipsticks) even without the use of chemical filters (examples 2 and 6). The degree of UV protection (SPF) obtained by these products can be assessed by means of analysis commonly known in the cosmetic industry: in the experimental tests attached hereto, an in vitro analysis of the diffuse transmittance was carried out using a Labsphere UV-2000S spectrophotometer. equipped with integrating sphere that allows the evaluation of opaque samples. Transmittance is the percentage of UV radiation that passes through the sample without being reflected or absorbed by it. Within the scope of the present invention, products with significant SPF values have been obtained (i.e. higher than 6, or higher than 10, e.g. between 12 and 25), using even very low concentrations of graphene without the need to resort to chemical filters. and related products.
In aggiunta al grafene, le presenti composizioni contengono eccipienti scelti tra quelli tipicamente usati in prodotti per labbra, quali i rossetti. Detti eccipienti comprendono: emollienti, quali ad es. olio di ricino, esteri, alcoli tipo ottildodecanolo, siliconi organicamente modificati, Meadwfoam seed oil, olio di jojoba esteri e trigliceridi; cere, quali ad es. candelilla, carnauba, cera d’api, cera micro cristallina, ozocherite, alchilsiliconi, polietilene, paraffina; coloranti, eventualmente emulsionati, quali ad es. biossido di titanio, ossidi di ferro, ossido di zinco, perle; filler, quali ad es. acido ialuronico; antiossidanti, quali ad esempio tocoferolo, tocoferolo acetato; plasticizzanti e gelificanti, quali ad es. gliceril behenato; agenti texturizzanti, quali ad es. nylon, amidi, mica; copolimeri acrilici, ecc.. Nel caso dei rossetti no-transfer occorre un idoneo bilanciamento tra solventi ed emollienti affinché il prodotto non divenga troppo secco sulle labbra. In questo caso si usano solventi come isoparaffine, alchilsiliconi, emollienti come siliconi (fluidi e paste), esteri oli vegetali, in associazione a componenti standard per rossetti classici. In addition to graphene, the present compositions contain excipients selected from those typically used in lip products, such as lipsticks. Said excipients include: emollients, such as eg. castor oil, esters, octyldodecanol-like alcohols, organically modified silicones, Meadwfoam seed oil, jojoba oil esters and triglycerides; waxes, such as eg. candelilla, carnauba, beeswax, micro crystalline wax, ozocherite, alkyl silicones, polyethylene, paraffin; dyes, possibly emulsified, such as e.g. titanium dioxide, iron oxides, zinc oxide, pearls; fillers, such as eg. hyaluronic acid; antioxidants, such as for example tocopherol, tocopherol acetate; plasticizers and gelling agents, such as eg. glyceryl behenate; texturizing agents, such as eg. nylon, starch, mica; acrylic copolymers, etc. In the case of no-transfer lipsticks, a suitable balance between solvents and emollients is required so that the product does not become too dry on the lips. In this case, solvents such as isoparaffins, alkylsilicones, emollients such as silicones (fluids and pastes), vegetable oil esters are used, in association with standard components for classic lipsticks.
Oltre ai suddetti eccipienti, le composizioni dell’invenzione possono includere principi attivi utili per un’applicazione alle labbra; tra essi si può citare, ad esempio: ascorbil palmi tato, ceramidi, panteolo, beta-carotene, tocoferilacetato, ecc.. In addition to the aforementioned excipients, the compositions of the invention may include active ingredients useful for application to the lips; among them we can mention, for example: ascorbil palmi tato, ceramides, pantheol, beta-carotene, tocopheryl acetate, etc.
Le presenti composizioni sono ulteriormente caratterizzabili in base alle loro concentrazioni preferenziali di oli, cere e grassi (dove lo stato di fisico di olio /cera / grasso è inteso alla temperatura ambiente di 25°C): detti oli sono presenti, nel loro insieme, ad una concentrazione in peso compresa tra 30 e 80%, più preferibilmente tra 40 e 70%, sul peso della composizione; dette cere sono presenti, nel loro insieme, ad una concentrazione in peso compresa tra 2 e 30%, più preferibilmente tra 5 e 15%, sul peso della composizione; detti grassi sono presenti, nel loro insieme, ad una concentrazione in peso compresa tra 5 e 40%, più preferibilmente tra 10 e 30%, sul peso della composizione. The present compositions can be further characterized on the basis of their preferential concentrations of oils, waxes and fats (where the physical state of oil / wax / fat is intended at the ambient temperature of 25 ° C): said oils are present, as a whole, at a concentration by weight of between 30 and 80%, more preferably between 40 and 70%, on the weight of the composition; said waxes are present, as a whole, at a concentration by weight of between 2 and 30%, more preferably between 5 and 15%, on the weight of the composition; said fats are present, as a whole, at a concentration by weight of between 5 and 40%, more preferably between 10 and 30%, on the weight of the composition.
Vantaggiosamente, nella presente invenzione il grafene ha anche azione testurizzante, rendendo quindi opzionale l’aggiunta dei testurizzanti classici sopra riportati, molti dei quali sono polimeri sintetici (nylon, poliacrilati, ecc.). Pertanto, un’ulteriore realizzazione dell’invenzione è rappresentata da un prodotto cosmetico per applicazione alle labbra come fin qui descritto, ma esente da polimeri sintetici; questa variante accresce la connotazione naturale del prodotto, rendendolo così più rispettoso del delicato epitelio labiale e particolarmente gradito al consumatore. Advantageously, in the present invention, graphene also has a texturizing action, thus making the addition of the above-mentioned classic texturizers optional, many of which are synthetic polymers (nylon, polyacrylates, etc.). Therefore, a further embodiment of the invention is represented by a cosmetic product for application to the lips as described above, but free from synthetic polymers; this variant increases the natural connotation of the product, thus making it more respectful of the delicate lip epithelium and particularly pleasing to the consumer.
E’ stato inoltre osservato che l’aggiunta di anche piccole quantità di grafene in preparati per l’applicazione alle labbra (prevalentemente costituiti da oli, grassi e cere) accresce in modo massiccio il fattore di protezione solare del prodotto, così da permettere la realizzazione di prodotti per le labbra efficacemente foto-protettivi, pur in assenza di filtri chimici comunemente utilizzati in prodotti cosmetici, quali ad es. gli esteri di acidi alcossicinnamici. Pertanto, un'ulteriore realizzazione dell’invenzione è rappresentata da un prodotto cosmetico per applicazione alle labbra come fin qui descritto, ma esente da filtri chimici; anche questa variante accresce la connotazione naturale del prodotto, rendendolo più rispettoso del delicato epitelio labiale e particolarmente gradito al consumatore. It has also been observed that the addition of even small quantities of graphene in preparations for application to the lips (mainly consisting of oils, fats and waxes) massively increases the sun protection factor of the product, so as to allow the realization of effectively photo-protective lip products, even in the absence of chemical filters commonly used in cosmetic products, such as eg. esters of alkoxycinnamic acids. Therefore, a further embodiment of the invention is represented by a cosmetic product for application to the lips as described above, but free from chemical filters; this variant also increases the natural connotation of the product, making it more respectful of the delicate lip epithelium and particularly pleasing to the consumer.
Vantaggiosamente, nella presente invenzione il grafene svolge anche un ruolo nella protezione nei riguardi dell’ossidazione attenuando la produzione delle specie radicaliche dell’ossigeno (ROS) (azione antiaging). Advantageously, in the present invention, graphene also plays a role in protecting against oxidation by attenuating the production of radical oxygen species (ROS) (antiaging action).
ESEMPI SPERIMENTALI EXPERIMENTAL EXAMPLES
Riportiamo di seguito alcuni esempi non limitativi di prodotti per applicazione alle labbra, senza grafene (riferimento) / con grafene (invenzione): lip balm protettivo (esempi 1 / 2); lip balm su base commerciale comprendenti filtri chimici (esempi 3 / 4); rossetti matt (esempi 5 / 6), rossetti gloss (esempi 7 / 8). Here are some non-limiting examples of products for application to the lips, without graphene (reference) / with graphene (invention): protective lip balm (examples 1/2); commercial-based lip balms comprising chemical filters (examples 3/4); matt lipsticks (examples 5/6), gloss lipsticks (examples 7/8).
Negli esempi riportati per il lip balm (esempi 1-2) sono state scelte materie prime a carattere naturale. Come si può osservare, la presenza di una bassa (0,2%) quantità di grafene nell’esempio 2 ha determinato un forte (+22%) aumento del fattore di protezione solare SPF rispetto all’esempio comparativo 1. Si è così vantaggiosamente ottenuta una composizione fortemente foto -protetta, pur esente da filtri chimici. In figura 1, si mostra l’effetto cromatico della composizione: la presenza del grafene conferisce una piacevole colorazione al prodotto che non è più percepibile dopo la sua applicazione cutanea. In the examples shown for the lip balm (examples 1-2) natural raw materials have been chosen. As can be seen, the presence of a low (0.2%) quantity of graphene in example 2 determined a strong (+ 22%) increase in the sun protection factor SPF compared to comparative example 1. It was thus advantageously obtained a highly photo-protected composition, although free from chemical filters. Figure 1 shows the chromatic effect of the composition: the presence of graphene gives a pleasant color to the product that is no longer perceptible after its skin application.
Negli ulteriori esempi riportati per il lip balm (esempi 3-4) si è valutato l'effetto dell'aggiunta di graiene ad una composizione commerciale (SFP 10). Anche in questo caso, la presenza di una piccola (0,2%) quantità di grafene nell'esempio 4 ha determinato un aumento molto forte (+35%) del fattore di protezione SPF rispetto al corrispondente commerciale dell'esempio 3. In the further examples reported for the lip balm (examples 3-4) the effect of adding graene to a commercial composition (SFP 10) was evaluated. Also in this case, the presence of a small (0.2%) quantity of graphene in example 4 determined a very strong increase (+ 35%) of the protection factor SPF compared to the commercial equivalent of example 3.
L'esempio 6 riporta la composizione di un rossetto stick matt secondo l'invenzione; il suo effetto cosmetico dopo applicazione su pelle umana è visibile nella figura 2, a confronto con il corrispondente prodotto di riferimento senza grafene (esempio 5). Example 6 reports the composition of a lipstick stick matt according to the invention; its cosmetic effect after application on human skin is visible in figure 2, in comparison with the corresponding reference product without graphene (example 5).
L’aggiunta di grafene, pur in piccola quantità (0,2%), ha determinato un forte (+22%) aumento del fattore di protezione SPF, ottenendo inoltre un rating Good nell'UVA ed una importante protezione dalle radiazioni UV. Il prodotto presenta inoltre ottime caratteristiche di applicazione, di copertura, di luminosità e texture. The addition of graphene, albeit in small quantities (0.2%), resulted in a strong (+ 22%) increase in the SPF protection factor, also obtaining a Good rating in UVA and an important protection from UV radiation. The product also has excellent characteristics of application, coverage, brightness and texture.
L’esempio 8 riporta la composizione di un rossetto gloss secondo l’invenzione; il suo effetto cosmetico dopo applicazione su pelle umana è visibile nella figura 3, a confronto con il corrispondente prodotto di riferimento senza grafene (esempio 7). Example 8 shows the composition of a gloss lipstick according to the invention; its cosmetic effect after application on human skin is visible in figure 3, in comparison with the corresponding reference product without graphene (example 7).
Il prodotto secondo l’esempio 8 ha mostrato un forte aumento del fattore di protezione SPF, così come ottime caratteristiche di applicazione, di copertura, di luminosità e texture. The product according to example 8 showed a strong increase in the SPF protection factor, as well as excellent application, coverage, brightness and texture characteristics.
I suddetti esempi mostrano, in modo non limitativo, l’efficace utilizzo del grafene in formulati per labbra. Modifiche delle formulazioni presentate sono possibili in funzione del risultato richiesto, anche in termini di colorazione finale del prodotto, sia in prodotti con connotazione naturale che in presenza di derivati sintetici. The above examples show, in a non-limiting way, the effective use of graphene in formulations for lips. Modifications of the formulations presented are possible depending on the required result, also in terms of the final coloring of the product, both in products with natural connotations and in the presence of synthetic derivatives.
ESEMPIO 1 (LIP BALM) EXAMPLE 1 (LIP BALM)
ESEMPIO 2 (LIP BALM GRAFENE) EXAMPLE 2 (LIP BALM GRAPHENE)
ESEMPIO 3: LIP BALM COMMERCIALE (SPF 10) EXAMPLE 3: COMMERCIAL LIP BALM (SPF 10)
INGREDIENTS: Hydrogenated Coconut Oil, Cera Alba, Ethylhexyl Methoxycinnamate, Simmondsia Chinensis (Jojoba) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Cariota Oil, Jojoba Esters, Tocopheryl Acetate, Dimethicone, Chamomilla Recutita (Maticaria) Flower Extract, Phenoxyethanol, Isopropyl Myristate, Vanillin, Aloe Barbadensis Leaf Juice, Ci77891, Saccharin, Alumina, Polyhydroxystearic Acid, Silica. INGREDIENTS: Hydrogenated Coconut Oil, Cera Alba, Ethylhexyl Methoxycinnamate, Simmondsia Chinensis (Jojoba) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Cariota Oil, Jojoba Esters, Tocopheryl Acetate, Dimethicone, Chamomilla Recutita (Maticeno Flower Extracthicaria) Myristate, Vanillin, Aloe Barbadensis Leaf Juice, Ci77891, Saccharin, Alumina, Polyhydroxystearic Acid, Silica.
ESEMPIO 4: LIP BALM COMMERCIALE (esempio 3) 0,2% EXAMPLE 4: COMMERCIAL LIP BALM (example 3) 0.2%
GRAFENE (SPF 13,47 0,84) GRAPHENE (SPF 13.47 0.84)
INGREDIENTE: Hydrogenated Coconut Oil, Cera Alba, Ethylhexyl Methoxycinnamate, Simmondsia Chinensis (Jojoba) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Canola Oil, Jojoba Esters, Tocopheryl Acetate, Dimethicone, Chamomilla Recutita (Matricaria) Flower Extract, Phenoxyethanol, Isopropyl Myristate, Vanillin, Aloe Barbadensis Leaf Juice, Ci77891, Saccharin, Alumìna, Polyhydroxystearic Acid, Silica, Graphene 0,2%. INGREDIENT: Hydrogenated Coconut Oil, Cera Alba, Ethylhexyl Methoxycinnamate, Simmondsia Chinensis (Jojoba) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Canola Oil, Jojoba Esters, Tocopheryl Acetate, Dimethicone, Chamomilla Recutita (Matricenoyl Extract) Myristate, Vanillin, Aloe Barbadensis Leaf Juice, Ci77891, Saccharin, Alumìna, Polyhydroxystearic Acid, Silica, Graphene 0.2%.
ESEMPIO 5 (ROSSETTO MATT) EXAMPLE 5 (MATT LIPSTICK)
ESEMPIO 6 (ROSSETTO MATT GRAFENE) EXAMPLE 6 (MATT GRAPHENE LIPSTICK)
ESEMPIO 7 (ROSSETTO EFFETTO GLOSS) EXAMPLE 7 (GLOSS EFFECT LIPSTICK)
ESEMPIO 8 (ROSSETTO EFFETTO GLOSS GRAFENE) EXAMPLE 8 (GRAPHENE GLOSS EFFECT LIPSTICK)
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102018000007690A IT201800007690A1 (en) | 2018-07-31 | 2018-07-31 | Graphene as a texturizing and functional agent in cosmetic lip products |
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| IT102018000007690A IT201800007690A1 (en) | 2018-07-31 | 2018-07-31 | Graphene as a texturizing and functional agent in cosmetic lip products |
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| IT201800007690A1 true IT201800007690A1 (en) | 2020-01-31 |
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| IT102018000007690A IT201800007690A1 (en) | 2018-07-31 | 2018-07-31 | Graphene as a texturizing and functional agent in cosmetic lip products |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2848446A1 (en) * | 2002-12-12 | 2004-06-18 | Oreal | Fluid composition for make-up or care of the skin or lips, e.g. lip gloss, comprises nanotubes of a Group IIA, IIIA, IVA, VA, IB, IIB, IIIB, VIB or VIIB element |
| FR2848418A1 (en) * | 2002-12-12 | 2004-06-18 | Oreal | Nonfluid composition for make-up or care of the skin or lips, e.g. lipstick, comprises nanotubes of a Group IIA, IIIA, IVA, VA, IB, IIB, IIIB, VIB or VIIB element |
| CN106806049A (en) * | 2015-12-02 | 2017-06-09 | 珠海和凡医药股份有限公司 | A kind of medical application of novel graphite alkene material |
| CN108078875A (en) * | 2018-02-27 | 2018-05-29 | 贵安新区瑞诚生物工程有限公司 | The preparation method and its production system of a kind of small molecule Chinese medicine antibacterial toothpaste and skin care item |
-
2018
- 2018-07-31 IT IT102018000007690A patent/IT201800007690A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2848446A1 (en) * | 2002-12-12 | 2004-06-18 | Oreal | Fluid composition for make-up or care of the skin or lips, e.g. lip gloss, comprises nanotubes of a Group IIA, IIIA, IVA, VA, IB, IIB, IIIB, VIB or VIIB element |
| FR2848418A1 (en) * | 2002-12-12 | 2004-06-18 | Oreal | Nonfluid composition for make-up or care of the skin or lips, e.g. lipstick, comprises nanotubes of a Group IIA, IIIA, IVA, VA, IB, IIB, IIIB, VIB or VIIB element |
| CN106806049A (en) * | 2015-12-02 | 2017-06-09 | 珠海和凡医药股份有限公司 | A kind of medical application of novel graphite alkene material |
| CN108078875A (en) * | 2018-02-27 | 2018-05-29 | 贵安新区瑞诚生物工程有限公司 | The preparation method and its production system of a kind of small molecule Chinese medicine antibacterial toothpaste and skin care item |
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