U.S. patent application number 10/323269 was filed with the patent office on 2003-11-13 for artificial nail-decorative stones and a manufacturing method thereof.
This patent application is currently assigned to KOSAM CORPORATION LTD.. Invention is credited to Park, Kyung Hoon.
Application Number | 20030209249 10/323269 |
Document ID | / |
Family ID | 29398520 |
Filed Date | 2003-11-13 |
United States Patent
Application |
20030209249 |
Kind Code |
A1 |
Park, Kyung Hoon |
November 13, 2003 |
Artificial nail-decorative stones and a manufacturing method
thereof
Abstract
The present invention relates to artificial nail-decorative
stones and a manufacturing method thereof, and the artificial
nail-decorative stones of the present invention are obtained from
coating an acrylic resin-based molded material with a transparent
UV-curing paint and depositing aluminum foil on the bottom of the
molded material. A method for manufacturing artificial
nail-decorative stones comprises steps of injecting acrylic resin
to form an artificial nail-decorative molded material of various
designs, coating the entire molded material with a transparent
UV-curing paint, radiating ultraviolet light on the coated material
for curing, depositing aluminum foil on stone bottoms to be adhered
to natural nails, and cutting the foil-deposited material into
individual pieces by using ultrasonic wave.
Inventors: |
Park, Kyung Hoon; (Seoul,
KR) |
Correspondence
Address: |
Ladas & Parry
26 West 61st Street
New York
NY
10023
US
|
Assignee: |
KOSAM CORPORATION LTD.
|
Family ID: |
29398520 |
Appl. No.: |
10/323269 |
Filed: |
December 19, 2002 |
Current U.S.
Class: |
132/73 |
Current CPC
Class: |
A45D 29/001
20130101 |
Class at
Publication: |
132/73 |
International
Class: |
A45D 029/00 |
Foreign Application Data
Date |
Code |
Application Number |
May 13, 2002 |
KR |
P 2002-26282 |
Claims
What is claimed is:
1. Artificial nail-decorative stones obtained from coating an
acrylic resin-based molded material with a transparent UV-curing
paint and depositing aluminum foil on the bottom of the molded
material.
2. A method for manufacturing artificial nail-decorative stones
comprising steps of injecting acrylic resin to form an artificial
nail-decorative molded material of predetermined designs, coating
the entire molded material with a transparent UV-curing paint,
radiating ultraviolet light on the coated material for curing,
depositing aluminum foil on stone bottoms to be adhered to natural
nails, and cutting the foil-deposited material into individual
pieces by using ultrasonic wave.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to artificial nail-decorative
stones and a manufacturing method thereof, and more particularly to
artificial nail-decorative stones that are obtained from coating an
UV-curing paint on acrylic resin and a manufacturing method
thereof.
[0003] 2. Description of Prior Art
[0004] There are lots of nail-decorative accessories such as
so-called nail hanger or dangle accessories which are nail hangers
of hundreds of cubic designs with rhinestones of diverse sizes and
shapes (these accessories are hung on nail tips by using O rings or
adhesive-type coupling rings), and nail charms which are plainly
curved accessories put on nails (these accessories are adhered on
nails by using the top coat or nail adhesives).
[0005] The rhinestone is typical as a material for conventional
nail decorations, and most materials for the other nail-decorative
accessories are cubic ones and the like such as nail hangers or
nail charms formed by coating gold or silver on the substance of
zinc or brass.
[0006] However, the rhinestone is expensive and hard, and a lump of
rhinestone is cut into pieces for machining, so that difficulties
exists in the machining as well as lots of time and cost are
required. In particular, the nail hangers and nail charms of
existing metal coat have been developed and sold only in two
colors, so that there exists a limit in expressing diverse colors
for decorations.
[0007] Further, it is relatively heavy, which causes
inconvenience.
SUMMARY OF THE INVENTION
[0008] Accordingly, it is an object of the present invention to
provide a simple and economic method for manufacturing artificial
nail-decorative stones by solving the above problems.
[0009] It is another object of the present invention to provide
artificial nail-decorative stones which are light-weighted and
cheap.
[0010] The object of the present invention is achieved by
artificial nail-decorative stones obtained from coating an acrylic
resin-based molded material with a transparent UV-curing paint and
depositing aluminum foil on the bottom of the molded material.
[0011] The other object of the present invention is achieved by a
method for manufacturing artificial nail-decorative stones
comprising steps of injecting acrylic resin to form an artificial
nail-decorative molded material of various designs, coating the
entire molded material with a transparent UV-curing paint,
radiating ultraviolet light on the coated material for curing,
depositing aluminum foil on stone bottoms to be adhered to natural
nails, and cutting the foil-deposited material into individual
pieces by using ultrasonic wave.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The above objects and other features of the present
invention will become more apparent by describing in detail a
preferred embodiment thereof with reference to the attached
drawings, in which:
[0013] FIG. 1 is a cross-sectioned view for showing an artificial
nail-decorative stone according to an embodiment of the present
invention;
[0014] FIG. 2 is a view for showing a hand nail on which an
artificial stone manufactured according to the present invention is
decorated;
[0015] FIG. 3 is a view for explaining the cutting of an acrylic
resin-based stone material; and
[0016] FIG. 4 is a photograph for showing stones decorating the
natural nails.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] FIG. 1 is a cross-sectioned view for showing an artificial
nail-decorative stone according to an embodiment of the present
invention.
[0018] In case that an acrylic resin-based molded material is used
for nail-decorative stones and the material is used, as it is, in
the state that aluminum foil is deposited on the lower side
thereof, ill effects are causes that the acrylic resin is dissolved
by the acetone solvent contained in manicure, top coat, and the
like and the colors of the acrylic resin-based stones fade out.
Accordingly, the present invention, before depositing the aluminum
foil, coats a transparent UV-curing paint 12 on the entire
artificial stones, applies the ultraviolet light to the stones for
curing the paint, and deposits the aluminum foil on the cured
stones, to thereby manufacture the desired stones. A modified
acrylic paint is preferably used for the transparent UV-curing
paint. The UV-curing paint is preferably coated in a thickness of
15-25 microns in the spray-coating manner. It makes a coating
process difficult to obtain too thin a coating, and full protection
effects can not be obtained through such a thin coating. Too thick
a coating has a drawback that the gloss of stone dies away in half
since the angled portions come blunt. A coating thickness is
preferably 10-25 microns. Further, before the coating, it is
preferable the stones are ultrasonically washed, electrically
discharged, and treated dust-free for the coating. After the
coating, the stones are heated under the far infrared radiations at
temperatures of 50-70.degree. C. for 90-180 seconds, cooled at the
room temperature for 20-50.degree. C., and ultraviolet-radiated. A
high-pressure mercury lamp or metal halite lamp is used for the
ultraviolet radiations, and an amount of the ultraviolet radiations
is preferably adjusted to 800-1200 J/cm.sup.2. The room temperature
is adjusted below 80.degree. C. upon curing.
[0019] Aluminum foil is deposited on the lower side of a material
10 molded by injecting acrylic resin. The aluminum foil is
deposited in the same manner as in the conventional rhinestone, so
the general aluminum foil deposition method is used for the
coating, and there is no specific restriction imposed on the
coating methods and materials.
[0020] FIG. 2 is a view for showing a hand nail on which an
artificial stone manufactured according to the present invention is
decorated, that is, for showing an implementation of the artificial
stone according to the invention. In case that a hand nail is
decorated with the artificial stone of the present invention,
first, manicure is applied on the hand nail, an artificial stone is
attached on a desired portion of the nail, top coat is applied over
it and cured.
[0021] If the UV-curing paint coating, curing, and the aluminum
foil deposition are completed through the process, the stone of
acrylic resin-based material is ultrasonically cut into individual
pieces. FIG. 3 is a view for showing a step for cutting the stone
of acrylic resin-based material. As shown in FIG. 3, the acrylic
resin-based stone material is not formed in individual unit pieces,
but in one plate having hundreds of individual unit pieces
connected together. The UV-coating and the aluminum foil deposition
on the bottom of the material are completed in the plate state, and
the positions marked A and B where the individual unit pieces are
in weak connections are cut by using the ultrasonic wave, to
thereby complete products.
[0022] [EMBODIMENT 1]
[0023] Nail-decorative molded material of diverse shapes such as
hemisphere, rectangle, and the like was fabricated with acrylic
resin through the injection molding manner. after ultrasonic
cleaning on the material, a process for electrical discharge and
dust removal proceeded with the material. A transparent UV-curing
paint (Ubiron 417A, manufactured by Mitsubishi plastics
engineering) which is primarily a mixture of modified acrylate
oligomer and monomer was diluted in a diluting agent (No. 25 or 27,
manufactured by Mitsubishi plastics engineering) to have a
viscosity of 10.+-.2 seconds (Ford Cap NO 4) at temperature of
25.degree. C. Nozzles of 0.8-11.0 mm were used to jet the paint at
an air pressure of 3.0-3.5 kg/cm.sup.2, to thereby spray-coat the
material in a coat thickness of 20 microns. After I.R (60.degree.
C., 120 seconds) settings, the material was cooled at 25.degree. C.
for 40 seconds. The room temperature was adjusted below 0.degree.
C., the high-pressure mercury lamp of 80 W/cm was used and the UV
radiation amount was controlled to 1000 J/cm.sup.2, and ultraviolet
light was radiated for curing the coated material. In a next step,
aluminum foil was deposited on the bottom of the material which
will be attached on natural nails. The foil-deposited material was
cut into individual pieces by using the ultrasonic wave. Manicure
was applied on natural nails, the natural nails were decorated by
stones of various shapes, and top coat was applied on the decorated
stones and cured. FIG. 4 is a photograph for showing stones
decorating the natural nails.
[0024] As can be seen in the detailed description and the
accompanying drawings of the present invention, the artificial
stones of the present invention are molded through the injection
molding manner without extra machining such as cutting and so on,
so diverse shapes can be easily obtained such as rectangle,
hemisphere, star, heart, cubic or 3D-nail hanger, nail charm which
is a plainly curved accessory, and so on, rather than 8-angled
shape, 12-angled shape, and the like of the conventional
rhinestone. Further, the present invention enables artificial
nail-decorative stones to be manufactured in a simple process and a
low cost.
[0025] In particular, the acrylic resin-based stones have
advantages of hundreds of diverse colors and excellent gloss, as
well as that the stones are light-weighted.
* * * * *