A photocurable composition for a nail or artificial nail which exhibits surface curability corresponding to a UV irradiator and LED irradiation and of which the cured product can exhibit both durability to maintain stable adhesive property in everyday life and soak off property, is colorless and transparent, and is not turbid, or a base coat agent containing the same. The photocurable composition for nail or artificial nail can contain a compound having a (meth)acryloyl group, rosin or a rosin derivative, and a photoinitiator.

A photocurable composition for a nail or artificial nail which exhibits surface curability corresponding to a UV irradiator and LED irradiation and of which the cured product can exhibit both durability to maintain stable adhesive property in everyday life and soak off property, is colorless and transparent, and is not turbid, or a base coat agent containing the same. The photocurable composition for nail or artificial nail can contain a compound having a (meth)acryloyl group, rosin or a rosin derivative, and a photoinitiator.

A method for removing an artificial fingernail from an underlying natural fingernail to which it is attached by an adhesive has the steps of: (a) soaking the fingertips in warm, soapy water; (b) providing a prying tool comprising a thin, smooth sheet of semi-rigid material; (c) inserting the prying tool between the artificial and the underlying natural fingernails; (d) lifting the artificial fingernail away from the underlying natural fingernail; and (e) manually removing the artificial fingernail from the fingertip.

An applying method of a nail polish on a nail surface via an airbrush applicator, including the steps of: filling a predetermined amount of nail polish in a polish container of the airbrush applicator; actuating an air compressor of the airbrush applicator, which is powered by a rechargeable battery thereof, for generating pressurized air; controlling a flow of the pressurized air to mix with the nail polish so as to form an aerosol on the nail surface; and drying the nail polish on the nail surface to form a nail coating thereon.

The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) at least one photocrosslinkable urethane (meth)acrylate compound P2 comprising at least one polyether chain, said compound having a molar mass greater than or equal to 1000 g/mol, at least one film-forming polymer P3, at least one photoinitiator, and at least one volatile solvent chosen from acetone, ethyl acetate, and propyl acetate, said solvent being present in said composition at a content greater than or equal to 20%, preferably greater than or equal to 30%, by weight in relation to the total weight of said composition, wherein the ratio of the total mass of P1 and P2 to the total mass of P3 is less than or equal to 4.0. ##STR00001##

The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) at least one photocrosslinkable urethane (meth)acrylate compound P2 comprising at least one polyether chain, said compound having a molar mass greater than or equal to 1000 g/mol, at least one film-forming polymer P3, at least one photoinitiator, and at least one volatile solvent chosen from acetone, ethyl acetate, and propyl acetate, said solvent being present in said composition at a content greater than or equal to 20%, preferably greater than or equal to 30%, by weight in relation to the total weight of said composition, wherein the ratio of the total mass of P1 and P2 to the total mass of P3 is less than or equal to 4.0. ##STR00001##

A system and method for manufacturing custom fit artificial nails includes a 3D surface scanning module and a 3D printing module and use thereof. A central processing module is connected to the 3D surface scanning module and the 3D printing module and performs: operating the 3D surface scanning module to obtain an image of a user's hands/feet; processing the image to create an input 3D model of nails of the user; generating an output 3D model corresponding to artificial nails matching dimensions of the user's nails according to the 3D input model; operating the 3D printing module to manufacture artificial nails according to the output 3D model; and generating medical data by correlating the identified features of the user's nails with known medical conditions, in order to diagnose a medical condition of the user which is known to exhibit the identified features as a symptom. Alternatively, or additionally, medicinal ingredient may be included in the artificial nail to treat the medical condition of the user. Embedded devices, sensors or an RFID chip may be integrated into the artificial nail.

A system and method for manufacturing custom fit artificial nails includes a 3D surface scanning module and a 3D printing module and use thereof. A central processing module is connected to the 3D surface scanning module and the 3D printing module and performs: operating the 3D surface scanning module to obtain an image of a user's hands/feet; processing the image to create an input 3D model of nails of the user; generating an output 3D model corresponding to artificial nails matching dimensions of the user's nails according to the 3D input model; operating the 3D printing module to manufacture artificial nails according to the output 3D model; and generating medical data by correlating the identified features of the user's nails with known medical conditions, in order to diagnose a medical condition of the user which is known to exhibit the identified features as a symptom. Alternatively, or additionally, medicinal ingredient may be included in the artificial nail to treat the medical condition of the user. Embedded devices, sensors or an RFID chip may be integrated into the artificial nail.

Disclosed herein are a model reconstruction apparatus and method using photogrammetry. The model reconstruction apparatus using photogrammetry includes an image-receiving unit for receiving image data in which images of a nail of a target, for which an artificial nail model is to be generated, and a standard specification object are taken together, an image-analyzing unit for recognizing shapes of a nail plate and a nail tip of the nail of the target from the image data, and determining parameters for the shape of the nail plate and the shape of the nail tip based on the standard specification object, and a model-generating unit for generating an artificial nail model based on the parameters.

Disclosed herein are a model reconstruction apparatus and method using photogrammetry. The model reconstruction apparatus using photogrammetry includes an image-receiving unit for receiving image data in which images of a nail of a target, for which an artificial nail model is to be generated, and a standard specification object are taken together, an image-analyzing unit for recognizing shapes of a nail plate and a nail tip of the nail of the target from the image data, and determining parameters for the shape of the nail plate and the shape of the nail tip based on the standard specification object, and a model-generating unit for generating an artificial nail model based on the parameters.