WO2001076407A1

WO2001076407A1 - Method for the manufacture of an artificial nail and artificial nails produced thereby

Info

Publication number: WO2001076407A1
Application number: PCT/NL2001/000291
Authority: WO
Inventors: Caroline Simone Elenbaas
Original assignee: Caroline Simone Elenbaas
Priority date: 2000-04-11
Filing date: 2001-04-11
Publication date: 2001-10-18
Also published as: EP1278438A1; NL1016716C2; AU2001250655A1; EP1278438B1; JP2003529476A; DE60104001D1; DE60104001T2; US20030102597A1; ATE269646T1

Abstract

The invention relates to a method for the manufacture of an artificial nail, which comprises placing a mouldable and curable material into a mould, allowing the material to cure, and removing the thus formed artificial nail from the mould. According to the invention, this method is characterized in that in a first step the method comprises in addition a decorative element (3) being placed in the mould (1), such that the decorative element (3) forms the top side of the formed artificial nail (9) and the decorative element (3) is bonded with the curable material. The decorative element may be a film material comprising an image.

Description

METHOD FOR^' THE MANUFACTURE OF AN ARTIFICIAL NAIL AND ARTIFICIAL NAILS

PRODUCED THEREBY

The present invention relates to a method for the manufacture of an artificial nail, which comprises placing a mouldable and curable material into a mould, allowing the material to cure, and removing the thus formed artifi- cial nail from the mould. The invention also relates to an artificial nail manufactured according to such a method.

The manufacture of artificial nails according to the method described above is generally known in the art. To this end a mould formed like an artificial nail is filled with a mouldable, for example, liquid and curable plastic and this plastic is allowed to cure, after which it can be removed from the mould. According to this method, an artificial nail is obtained ready for use. As such artificial nails generally do not already possess the desired colour, said artificial nails are often decorated only after their application on the natural nail . Decoration may involve coating with a nail varnish. In special nail studios it is possible to have the appropriate desired decoration applied on the nail by means of, for ex- ample, air brushing. This method is very labour-intensive. Consequently the costs are high.

An object of the invention is therefore to provide a simplified method for the manufacture of an artificial nail, with which it is possible to apply on the arti- ficial nail any decoration desired simultaneously with the manufacture of the artificial nails. An object of the invention is also to provide an environmentally friendly method for the manufacture of artificial nails. A particular object is to provide a method wherein it is not neces- sary to use nail varnish for obtaining a desired colour and surface finish on an artificial nail. It is a further object of the invention to provide a cheap method of manufacture for an artificial nail. It is also an object of the invention to provide a method by which any desired decoration can be applied on the artificial nail.

To this end a method as mentioned in the preamble is provided in accordance with the invention, character- ized in that in a first step the method in addition comprises a decorative element being placed in the mould, such that the decorative element forms the top side of the formed artificial nail and the decorative element is bonded with the curable material . By this method the above mentioned objectives can be achieved. In particular, the invention provides a method by which it is very simple to obtain excellent bonding between the basic material of the artificial nail and the decorative element . According to this method it is further possible, to manufacture artifi- cial nails with a desired decoration in a manner that in terms of environment is very friendly.

According to a preferred embodiment, the decorative element is formed by a film material. According to another preferred embodiment, the film material and the curable material are made of same material. This means that the final artificial nail is a mono product, being a product comprised of one single material . According to a particular preferred embodiment, this material is an acrylonitrile butadiene styrene resin. According to a further preferred embodiment, the curable material is added at a temperature of 200-300°C, preferably at a temperature of 240-260°C, while according to yet another preferred embodiment, the film material fuses at least partly, resulting in an excellent bonding between the film material and the curable material. This is in particular well possible when both components consist of the same material, and/or they have at least substantially the same softening or fusion temperature. This provides a very strong and solid bond between the origi- nally separate components, resulting in the aforementioned mono product. In this way damage to the artificial nail is to a large extent avoided, in contrast with the usual artificial nails that are finished with nail varnish. The method is especially convenient if the materials soften, or melt at least partly at the processing temperature, because in that case no solvents are required.

The decoration applied on the artificial nail, and which forms part of the film material, may comprise any desired image. It is also possible, for example, to make the decorative element in the form of a hologram, or a fluorescent or otherwise luminous surface. Of course, it is also possible to have decorative elements projecting from the top surface of the artificial nail to be manufactured, for which purpose the mould may also be provided with recesses for receiving said projecting elements during the manufacture of the artificial nail .

The invention will now be elucidated with refer- ence to the drawing.

Figures 1 to 3 show various steps in the forming of an artificial nail according to the present method.

Figure 4, shows a particular embodiment of a bottom mould. According to the method of the present invention, it is very simple to manufacture an artificial nail provided with an appropriate desired decoration. To begin with, the decoration is applied to a film material. In the drawing a mould is used consisting of two mould halves; a bottom half of a mould or bottom mould, and a top half of a mould or top mould. As shown in Figure 1, a film material 3 is placed into a bottom mould 1, which is provided with a depression 2. The film material has a first main surface 4 and a second main surface 5. The main surface 4 is provided with a desired decoration, and lies on the surface of the bottom mould 1. Figure 2 , shows a following step in a method for the manufacture of an artificial nail according to the invention. In this case the main surface 4 of the film material 3 lies on the shaped surface of the bottom mould 1. A top mould 6 is now placed on the bottom mould 1. This creates a space 7 the location of the artificial nail to be formed. Via an inlet opening 8, mould- able material is injected in an arbitrary direction (see arrow) into the space 7. This occurs under such pressure that the space 7 is completely filled, while there are also outlet openings provided (not shown) . Preferably the material of the film material at the second main surface 5 consists of the same material as the injected mouldable material. When the entire space 7 has been filled, the injected curable material is allowed to cool, or to cure in another way, after which the top mould 6 is removed. To this end the two mould halves may be provided with cooling facilities.

Figure 3 shows that the top half of the mould 6 is removed, leaving a moulded artificial nail 9 in the bottom half of the mould 1. Naturally, this process may also take place the other way around, leaving the artifi- cial nail 9 at the top half of the mould 6. In the embodiment represented here, the film material is not distributed over the entire mould surface, which is, of course, also possible. The artificial nail may now simply be removed from the mould 1. In accordance with an advantageous embodiment, the curable material from which the artificial nail is manufactured, is an acrylonitrile butadiene styrene resin. After curing, this material has sufficient rigidity and is sufficiently tear and break resistant. The film material is preferably also an acrylonitrile butadiene styrene resin material. If the image is desired to have a particular appearance, e.g. with respect to gloss, or another decorative quality, the film material may be laminated, wherein the side of the film material that, as represented in the Figures 1 to 3 faces upwards, is provided with a same material as the curable and mouldable material, for example, the acrylonitrile butadiene styrene resin material, from which the basic part of the artificial nail is formed. In that case an excellent bond will be obtained between the injected curable and mouldable material, and the film material . Because of the elevated temperature of the injected curable material, at least a part of the ma- •

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Claims

1. A method for the manufacture of an artificial nail, which comprises placing a mouldable and curable material into a mould, allowing the material to cure, and removing the thus formed artificial nail from the mould, characterized in that in a first step the method in addition comprises a decorative element being placed in the mould, such that the decorative element forms the top side of the formed artificial nail and the decorative element is bonded with the curable material.

2. A method according to claim 1, characterized in that the decorative element comprises a film material .

3. A method according to claim 1 or 2, characterized in that the curable material is an acrylonitrile butadiene styrene resin.

4. A method according to claim 1 or 2 , characterized in that the film material comprises an acrylonitrile butadiene styrene resin.

5. A method according to one of the claims 2 to 4, characterized in that the film material and the curable material are comprised of same material.

6. A method according to one of the preceding claims, characterized in that the curable material is added at a temperature of 200-300°C, preferably at a temperature of 240-260°C.

7. A method according to one of the claims 2 to

6, characterized in that the same comprises the at least partial fusion of the film material and the curable material upon the addition of the curable material into the mould.

8. An artificial nail, comprising a covering film layer and a basic part obtained by a method according to one of the preceding claims, characterized in that the film layer and the basic part are substantially comprised of one piece.

9. An artificial nail according to claim 8, characterized in that the film material comprises a decorative element at the topside.

10. An artificial nail according to claim 9, char- acterized in that the decorative element is chosen from one or more of an image, a hologram, one or more fluorescent or otherwise luminous surfaces, or the like.