An artificial nail includes: an artificial nail body having a shape corresponding to a shape of at least one portion of the natural nail, and including an upper surface provided to be away from a surface of the natural nail and a lower surface structured to face the surface of the natural nail; and an adhesive member disposed on a first surface of the lower surface of the artificial nail body. The lower surface of the artificial nail body includes the first surface overlapping the natural nail when attached to the surface of the natural nail and a second surface other than the first surface, and at least one portion of the first surface has a first roughness greater than a roughness of the second surface.

An artificial nail includes: an artificial nail body having a shape corresponding to a shape of at least one portion of the natural nail, and including an upper surface provided to be away from a surface of the natural nail and a lower surface structured to face the surface of the natural nail; and an adhesive member disposed on a first surface of the lower surface of the artificial nail body. The lower surface of the artificial nail body includes the first surface overlapping the natural nail when attached to the surface of the natural nail and a second surface other than the first surface, and at least one portion of the first surface has a first roughness greater than a roughness of the second surface.

This disclosure introduces an innovative cosmetic nail enhancement system comprising air permeable artificial nails with a removable and reusable adhesive coating. Designed to mimic the look and feel of professionally enhanced nails, these artificial nails offer users a versatile range of customization options in size, shape, color, and design, accommodating various personal styles and occasions. The invention's cornerstone is its unique adhesive technology, formulated to ensure a strong yet non-damaging bond with the natural nail, allowing for easy, gentle removal and multiple reapplications, as well as strategically placed micro-perforations to ensure natural nail health. These features not only enhances the product's economic and environmental appeal by promoting reuse but also bridges the gap between traditional permanent enhancements and the demand for flexible, temporary nail decoration solutions. Through this invention, users gain the ability to frequently and conveniently change their nail aesthetics without compromising natural nail health.

This disclosure introduces an innovative cosmetic nail enhancement system comprising air permeable artificial nails with a removable and reusable adhesive coating. Designed to mimic the look and feel of professionally enhanced nails, these artificial nails offer users a versatile range of customization options in size, shape, color, and design, accommodating various personal styles and occasions. The invention's cornerstone is its unique adhesive technology, formulated to ensure a strong yet non-damaging bond with the natural nail, allowing for easy, gentle removal and multiple reapplications, as well as strategically placed micro-perforations to ensure natural nail health. These features not only enhances the product's economic and environmental appeal by promoting reuse but also bridges the gap between traditional permanent enhancements and the demand for flexible, temporary nail decoration solutions. Through this invention, users gain the ability to frequently and conveniently change their nail aesthetics without compromising natural nail health.

The present disclosure provides a cosmetic laminate that can firmly adhere to a part of the living body and can be easily peeled off from the living body at any timing. The cosmetic laminate of the present disclosure includes a cosmetic layer adhering to a part of living body and a cover coat layer. The cosmetic layer and the cover coat layer are disposed, the cosmetic layer being positioned between the living body and the cover coat layer. The cosmetic layer contains a resin composition for a cosmetic including a stimulus-responsive material that undergoes a volume change by an external stimulus, and adheres to a part of the living body with a solidified matter of the resin composition for a cosmetic. A water contact angle with respect to a surface of the solidified matter of the resin composition for a cosmetic is from 30 to 110, inclusive. The cosmetic layer reduces an adhesion strength with a part of the living body by a volume change of the solidified matter caused by application of the external stimulus to the solidified matter of the resin composition for a cosmetic. The cover coat layer has a porosity of less than or equal to 40%.

The present disclosure provides a cosmetic laminate that can firmly adhere to a part of the living body and can be easily peeled off from the living body at any timing. The cosmetic laminate of the present disclosure includes a cosmetic layer adhering to a part of living body and a cover coat layer. The cosmetic layer and the cover coat layer are disposed, the cosmetic layer being positioned between the living body and the cover coat layer. The cosmetic layer contains a resin composition for a cosmetic including a stimulus-responsive material that undergoes a volume change by an external stimulus, and adheres to a part of the living body with a solidified matter of the resin composition for a cosmetic. A water contact angle with respect to a surface of the solidified matter of the resin composition for a cosmetic is from 30 to 110, inclusive. The cosmetic layer reduces an adhesion strength with a part of the living body by a volume change of the solidified matter caused by application of the external stimulus to the solidified matter of the resin composition for a cosmetic. The cover coat layer has a porosity of less than or equal to 40%.

A reusable false fingernail device includes a false nail and a nail plate configured to be secured to a natural nail. The false nail and nail plate engage through concealed mechanical coupling without adhesive. In one form, a convex mound on the nail plate contains a female socket that receives a male prong on the false nail to form a dovetail-type joint. In another form, the false nail includes an attachment tab slidingly received in a grooved channel having one or more retention notches for adjustable locking. In yet another form, a grooved channel within the false nail engages one or more projecting male tabs on the nail plate. Each configuration permits repeated attachment and removal while maintaining natural appearance, comfort, and structural integrity. The device limits excessive repeated use of adhesives, improves hygiene, accommodates nail growth, and provides durable, customizable artificial nails.

A reusable false fingernail device includes a false nail and a nail plate configured to be secured to a natural nail. The false nail and nail plate engage through concealed mechanical coupling without adhesive. In one form, a convex mound on the nail plate contains a female socket that receives a male prong on the false nail to form a dovetail-type joint. In another form, the false nail includes an attachment tab slidingly received in a grooved channel having one or more retention notches for adjustable locking. In yet another form, a grooved channel within the false nail engages one or more projecting male tabs on the nail plate. Each configuration permits repeated attachment and removal while maintaining natural appearance, comfort, and structural integrity. The device limits excessive repeated use of adhesives, improves hygiene, accommodates nail growth, and provides durable, customizable artificial nails.

Implementations of an artificial nail measurement system and method (artificial nail measurement) are provided. In some implementations, the artificial nail measurement may comprise a mold casting kit. In some implementations, the artificial nail measurement may further comprise a mold extraction kit. In some implementations, a method for the artificial nail measurement comprises a user receiving and using a mold casting kit to form a mold of the user's fingernails, shipping the mold to a nail technician to form a cast or replica of the user's fingernails, and the nail technician using the cast to measure the user's fingernails to select from pre-made artificial nails that then designed and shipped to the user for use.

Implementations of an artificial nail measurement system and method (artificial nail measurement) are provided. In some implementations, the artificial nail measurement may comprise a mold casting kit. In some implementations, the artificial nail measurement may further comprise a mold extraction kit. In some implementations, a method for the artificial nail measurement comprises a user receiving and using a mold casting kit to form a mold of the user's fingernails, shipping the mold to a nail technician to form a cast or replica of the user's fingernails, and the nail technician using the cast to measure the user's fingernails to select from pre-made artificial nails that then designed and shipped to the user for use.