A magnetic nail system includes an artificial nail having an upper face and an opposing under surface; a first magnetic element to be applied to a fingernail or toenail; and a second magnetic element provided on the artificial nail to be magnetically attracted to the first magnetic element. The artificial nail adheres to the fingernail or toenail by magnetic attraction between the first magnetic element and the second magnetic element. The first magnetic element and the second magnetic element include either a permanent magnet, a magnetic strip, or a magnetic slurry having magnetic particles suspended in a mixture with a drying liquid, polymer material or the magnetic slurry particles are suspended in a nail polish material.

A magnetic nail system includes an artificial nail having an upper face and an opposing under surface; a first magnetic element to be applied to a fingernail or toenail; and a second magnetic element provided on the artificial nail to be magnetically attracted to the first magnetic element. The artificial nail adheres to the fingernail or toenail by magnetic attraction between the first magnetic element and the second magnetic element. The first magnetic element and the second magnetic element include either a permanent magnet, a magnetic strip, or a magnetic slurry having magnetic particles suspended in a mixture with a drying liquid, polymer material or the magnetic slurry particles are suspended in a nail polish material.

An apparatus, kit, and method for applying a decal to a nail of a human digit are provided. A base coat of base nail polish is applied to a nail. The base coat has a tacky surface when dry. A decal application product is pressed against the tacky surface of the base coat, and includes a substrate and at least one decal adhered thereto. The at least one decal and the substrate have a first adhesion coefficient therebetween. The at least one decal and the tacky surface have a second adhesion coefficient that is greater than the first adhesion coefficient to cause a subset of the at least one decal to adhere to the base coat. A top coat of a top nail polish is applied atop of the base coat and the subset of the at least one decal to seal the subset of the at least one decal and the base coat.

An apparatus, kit, and method for applying a decal to a nail of a human digit are provided. A base coat of base nail polish is applied to a nail. The base coat has a tacky surface when dry. A decal application product is pressed against the tacky surface of the base coat, and includes a substrate and at least one decal adhered thereto. The at least one decal and the substrate have a first adhesion coefficient therebetween. The at least one decal and the tacky surface have a second adhesion coefficient that is greater than the first adhesion coefficient to cause a subset of the at least one decal to adhere to the base coat. A top coat of a top nail polish is applied atop of the base coat and the subset of the at least one decal to seal the subset of the at least one decal and the base coat.

A fake nail including an electronic paper as a display member and having a simple structure, which can easily update a display, is provided. A fake nail 1 including the electronic paper as the display member is mounted on a nail of a user using a fixing member 2 such as an electrically-conductive binding material and the like. In a state wherein the fake nail 1 is mounted, a display update device 3 generates an ion wind, and the generated ion wind is blown onto the fake nail 1. By electrical charging caused by the ion wind, an electric potential is applied to the electronic paper contained in the fake nail 1, and the display of the electronic paper is updated to a color according to the electric potential.

A fake nail including an electronic paper as a display member and having a simple structure, which can easily update a display, is provided. A fake nail 1 including the electronic paper as the display member is mounted on a nail of a user using a fixing member 2 such as an electrically-conductive binding material and the like. In a state wherein the fake nail 1 is mounted, a display update device 3 generates an ion wind, and the generated ion wind is blown onto the fake nail 1. By electrical charging caused by the ion wind, an electric potential is applied to the electronic paper contained in the fake nail 1, and the display of the electronic paper is updated to a color according to the electric potential.

Provided is a composition including: an acrylamide compound represented by general formula (1) below; urethane (meth)acrylate having a SI value of 3 or less in a skin sensitization test; and a polymerization initiator having a molecular weight of 800 or greater,

##STR00001##

where in general formula (1), R.sub.1 represents an alkyl group containing 1 through 6 carbon atoms, X represents an alkylene group containing 1 through 6 carbon atoms, and Y represents any one selected from the group consisting of general formula (2) below and general formula (3) below,

##STR00002##

where in general formula (2), R.sub.2 represents an alkyl group containing 1 through 10 carbon atoms, and * represents a binding site with X above,

##STR00003##

where in general formula (3), R.sub.2 represents an alkyl group containing 1 through 10 carbon atoms, and * represents a binding site with X above.

Provided is a composition including: an acrylamide compound represented by general formula (1) in 20% by mass or greater but 50% by mass or less; a multifunctional monomer in 40% by mass or greater but 70% by mass or less; and a polymerization initiator,

##STR00001##

where in general formula (1), R.sub.1 represents alkyl group containing 1 through 6 carbon atoms, X represents alkylene group containing 1 through 6 carbon atoms, and Y represents any one selected from the group consisting of general formula (2) below and general formula (3) below,

##STR00002##

where in general formula (2), R.sub.2 represents alkyl group containing 1 through 10 carbon atoms, and * represents binding site with X above,

##STR00003##

where in general formula (3), R.sub.2 represents alkyl group containing 1 through 10 carbon atoms, and * represents binding site with X above.

The invention relates to a false nail comprising at least: one front layer (12) forming the body of the false nail (1), and a rear layer (11) of an adhesive material for attaching the body of the false nail to a natural nail. The rear layer (11) is formed by a fast-drying polymer adhesive with desiccating capacity, and the front layer (12) is made of a composite material and comprises at least a first layer (12a) of micro-hybrid composite with low contraction capacity in contact with the polymer adhesive. The invention also relates to a method for shaping the false nail on a natural nail and the use of composite material to shape same.

The invention relates to a false nail comprising at least: one front layer (12) forming the body of the false nail (1), and a rear layer (11) of an adhesive material for attaching the body of the false nail to a natural nail. The rear layer (11) is formed by a fast-drying polymer adhesive with desiccating capacity, and the front layer (12) is made of a composite material and comprises at least a first layer (12a) of micro-hybrid composite with low contraction capacity in contact with the polymer adhesive. The invention also relates to a method for shaping the false nail on a natural nail and the use of composite material to shape same.