(19)
(11)EP 3 315 265 A1

(12)EUROPEAN PATENT APPLICATION

(43)Date of publication:
02.05.2018 Bulletin 2018/18

(21)Application number: 17192047.3

(22)Date of filing:  20.09.2017
(51)International Patent Classification (IPC): 
B25G 1/10(2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30)Priority: 17.10.2016 KR 20160134333

(71)Applicant: F.S. Korea Industries Inc.
Gangbuk-gu, Seoul 10162 (KR)

(72)Inventor:
  • Hwang, Jae Kwang
    Seoul (KR)

(74)Representative: Gulde & Partner 
Patent- und Rechtsanwaltskanzlei mbB Wallstraße 58/59
10179 Berlin
10179 Berlin (DE)

  


(54)BRUSH HANDLE AND METHOD FOR MANUFACTURING SAME


(57) The present invention relates to a method for manufacturing a brush handle having a metal surface material by depositing metal on a wood substrate at a low cost and a brush handle manufactured according to the method.
According to the present invention, by improving the problem that a wood material is burned out or metal deposition is not made uniform by a high temperature deposition process which occurs previously when a metal is deposited on the wood material, it is possible to stably form a metal deposition layer on the surface of the wood material without blackening or burning the wood material. In addition, it is possible to manufacture a brush handle having metallic surface gloss by using a wood material as a base material without forming a separate mold or using an expensive material, thereby manufacturing a brush handle of luxurious appearance at a low cost.


Description

BACKGROUND OF THE INVENTION


Field of the Invention



[0001] The present invention relates to a brush handle and a method of manufacturing the brush handle and, more particularly, to a method of manufacturing a brush handle having a metal surface material at a low cost by depositing metal on a wood material substrate and a brush handle manufactured by the method.

Background Art



[0002] Generally, brushes are used in many ways from writing or painting to the women's use for make-up or nail art. Depending on the use or purpose of the brush, the size and shape of the brush as well as the type and length of the hair of the brush are determined in various ways.

[0003] Since such a brush is hand held by a user when using the same, the handle thereof has various shapes to enable convenient gripping and is manufactured in various colors and textures so as to have aesthetics as well as functionality.

[0004] Especially, when considering that most users of cosmetic brushes are women, there are many cases, in which the appearance of the brush is brilliantly made to have a visual shape and pattern which are well suited to the eye level of the women who are fashion conscious and sensitive by nature.

[0005] As a method for making the appearance of a brush handle brilliant, there has been used a method of depositing metal such as silver or aluminum on a handle material so as to have metallic luster. However, in order to deposit metal, there has been a problem that it is necessary to separately manufacture a mold for a base material such as plastics or glass so that the process cost thereof is inefficiently high or the material itself is expensive to be used.

[0006] Furthermore, in the case of wood materials, there are advantages that it is not necessary to produce a mold separately and a large number of handles can be manufactured at a low cost since the wood materials are light in weight. However, such a wood handle still has a disadvantage that it contains moisture inside and thus cannot withstand a high temperature deposition process during the metal deposition, thereby being blackened or burned out.

[0007] Therefore, there is a need for a technique for depositing metal on the surface of a wood material in a stable manner so as to obtain metal luster while using a wood material as the material of the brush handle.

SUMMARY OF THE INVENTION



[0008] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior arts, and it is an objective of the present invention to provide a method for manufacturing a brush handle, in which a metal is stably deposited on a wood material that has conventionally been difficult to deposit metal.

[0009] It is also an objective of the present invention to provide a brush handle having a metal deposition layer on a wood material substrate.

[0010] To accomplish the above objectives, according to one embodiment of the present invention, there is provided a method for manufacturing a brush handle, comprising the steps of: processing a wood material into a predetermined shape; forming a first primer layer on the processed wood material; forming a metal deposition layer by depositing metal on the first primer layer; and forming a second primer layer on the metal deposition layer.

[0011] According to another embodiment of the present invention, there is provided a method for manufacturing a brush handle, comprising the steps of: processing a wood material into a predetermined shape; coating a first paint on the processed wood material; forming a first primer layer on the first paint; forming a first UV coating layer on the first primer layer; forming a metal deposition layer by depositing metal on the first UV coating layer; forming a second primer layer on the metal deposition layer; coating a second paint on the second primer layer; and forming a second UV coating layer on the second paint.

[0012] According to the present invention, the processed wood material may have a marginal length of 3 to 5 cm, and the method for manufacturing a brush handle according to the present invention may further comprise the step of cutting the marginal length, after the UV coating layer forming step.

[0013] According to the present invention, the first paint coating step may be performed by dipping, and the method for manufacturing a brush handle according to the present invention may further comprise the steps of cleaning and drying the wood material coated with the first paint, after the first paint coating step.

[0014] According to the present invention, the first primer layer includes one or more selected from the group consisting of polyethylene terephthalate(PET), polymethyl methacrylate(PMMA), Polycarbonate(PC), and acrylonitrile butadiene styrene(ABS).

[0015] In addition, according to the present invention, the metal includes at least one selected from gold, silver, copper, chromium and aluminum.

[0016] According to a further embodiment of the present invention, there is provided a method for manufacturing a brush handle, in which the metal deposition layer forming step is performed by a vacuum deposition method.

[0017] According to the present invention, the second paint coating step may be performed by spraying, wherein the spraying is performed using 16 to 24 spray guns.

[0018] Besides, according to still another embodiment of the present invention, there is provided a brush handle, comprising: a wood material; a first primer layer formed on the wood material; a metal deposition layer formed on the first primer layer; and a second primer layer formed on the metal deposition layer.

[0019] According to a still further embodiment of the present invention, there is provided a brush handle, comprising: a wood material; a first paint layer formed on the wood material; a first primer layer formed on the first paint layer; a first UV coating layer formed on the first primer layer; a metal deposition layer formed on the first UV coating layer; a second primer layer formed on the metal deposition layer; a second paint layer formed on the second primer layer; and a second UV coating layer formed on the second paint layer.

[0020] According to the present invention, by improving the problem that a wood material is burned out or metal deposition is not made uniform by a high temperature deposition process which occurs previously when a metal is deposited on a wood material, it is possible to stably form a metal deposition layer on the surface of the wood material without blackening or burning the wood material. In addition, it is possible to manufacture a brush handle having metallic surface gloss by using a wood material as a base material without forming a separate mold or using an expensive material, thereby manufacturing a brush handle of luxurious appearance at a low cost.

BRIEF DESCRIPTION OF DRAWINGS



[0021] 

Fig. 1 is a flow chart illustrating a method of manufacturing a brush handle according to an embodiment of the present invention,

Fig. 2 is a flow chart of a method of manufacturing a brush handle according to another embodiment of the present invention, and

Fig. 3 shows a brush equipped with a brush handle manufactured by a manufacturing method according to the present invention.


DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT



[0022] The present invention relates to a method for manufacturing a wood material handle for a brush, on which a metal is deposited, and the method includes the steps of: processing a wood material into a predetermined shape; forming a first primer layer on the processed wood material; forming a metal deposition layer by depositing metal on the first primer layer; and forming a second primer layer on the metal deposition layer.

[0023] According to another embodiment of the present invention, a method for manufacturing a brush handle, includes the steps of: processing a wood material into a predetermined shape; coating a first paint on the processed wood material; forming a first primer layer on the first paint; forming a first UV coating layer on the first primer layer; forming a metal deposition layer by depositing metal on the first UV coating layer; forming a second primer layer on the metal deposition layer; coating a second paint on the second primer layer; and forming a second UV coating layer on the second paint.

[0024] Hereinafter, the specific manufacturing method according to the present invention will be described step by step as follows.

1. Wood material processing step



[0025] In order to manufacture the brush handle of the present invention, a wood material that can be used as a handle is first provided and the step of processing the wood material into the appearance of a brush handle to be manufactured is carried out. It is preferable that the wood material is dried for a sufficient time before processing.

[0026] The wood material is processed in the form of a handle to be finally manufactured, wherein it is preferable that the wood material is processed to have a predetermined marginal length additionally. That is, the shape of the wood material is formed into a shape having a length longer than the length of the brush handle to be finally completed. In the present description, the wording "marginal length" means an additional length portion added to the final handle portion.

[0027] By processing the wood material so as to have a marginal length, the wood material can be easily and firmly fixed to a jig, and the wood material can be prevented from being released in subsequent steps. In addition, since the wood material contains moisture therein even though the wood material is sufficiently dried, the wood material may be blackened due to the water being discharged from the wood material at a high temperature during a later metal deposition process. If the vacuum deposition process is performed by fixing the wood material on the jig such that the marginal length portion is directed in the downward direction, the metal can be stably deposited on the wood material by adjustment so that the soot is formed only to the marginal length portion and is not actually formed in the portion to be used as a handle. To this end, it is preferable that the marginal length is formed in the range of 1 to 6 cm and preferably 3 to 5 cm.

2. First paint coating step



[0028] In one embodiment of the present invention, the processed wood material may be subjected to a process of forming a film by coating first paint. By forming the paint film in this manner, the pores of the wood can be blocked such that the coating can be smoothly formed when the primer layer or the metal deposition layer is formed later. The first paint may be selected from white or black depending on the color of the handle to be finally completed, wherein if the color of a final handle is bright, it is preferable to set the first paint to white, and the color of a final handle is dark, it is preferable to set the first paint to black. By coating the first paint in this way, the amount of the paint to be used in the step of coating the second paint can be effectively reduced.

[0029] The coating of the first paint is preferably carried out by a dipping method, in which the processed wood material is immersed in a bath containing the paint and then removed. In addition, it is preferable that the coating of the first paint is applied only to the portion to be actually used as the handle except for the marginal portion.

[0030] After the coating of the first paint is formed as described above, it is preferable to carry out a cleaning operation to remove grease from the surface. If the cleaning operation is not performed, the primer layer or the metal deposition layer may not be properly adhered to the surface, resulting in the nonuniformity of the surface.

[0031] Further, in one embodiment of the present invention, the wood material, for which the washing operation is completed, may be subjected to a drying step. If the wood material is dried and the internal moisture thereof is sufficiently removed, then the wood material can withstand the metal deposition process of high temperature without burning.

3. First primer layer forming step



[0032] The first primer layer can be formed on the first paint by applying a resin material to the wood material that has been cleaned according to the above-described steps. By forming the primer layer on the wood material, it is possible to form the deposition layer more stably in the next step of depositing metal.

[0033] The resin material which may be used for the first primer layer includes, for example, polyethylene terephthalate(PET), polymethyl methacrylate(PMMA), polycarbonate(PC), acrylonitrile butadiene styrene(ABS) and the like, and acrylonitrile butadiene styrene(ABS) may be most preferably used in view of workability and quality control.

[0034] The first primer layer may be formed by applying a resin material by a known method and it is preferably to use a spraying method, in which a spray gun is used. The first primer layer may be formed to a thickness of 30 to 100 µm, preferably 35 to 50 µm.

4. First UV coating layer forming step



[0035] In one embodiment of the present invention, the handle with the first primer layer may have a UV coating layer formed on the first primer layer. The UV coating layer is not particularly limited and may be formed through a commonly used process. For example, the UV coating layer may by formed by a spraying method of spraying a UV coating solution, which includes 40 to 55 wt% of a polyester acrylate oligomer, 5 to 10 wt% of an ultraviolet curing initiator, 35 to 40 wt% of an acrylate monomer, and 5 to 10 wt% of additives, by means of spray guns. When the UV coating layer is coated by spraying, it is preferable to carry out the spraying by using 16 to 24 spray guns.

[0036] The UV coating layer is preferably coated to a thickness of 1 to 10 µm. By setting the thickness of the UV coating layer in this manner, it is possible to improve the light resistance, chemical resistance, a high gloss finish, scratch resistance, abrasion resistance, etc. of a product surface.

[0037] In one embodiment of the present invention, a method for manufacturing a brush handle may further include the step of drying the handle having the first UV coating layer. This step is to remove the moisture remaining in the wood material so that the wood material can withstand without burning the following metal deposition step of high temperatures.

5. Metal deposition layer forming step



[0038] The handle with the first primer layer (or the first UV coating layer formed thereon) can have a metallic lustrous surface by depositing metal on the surface thereof later. Previously, it is technically difficult to deposit metal on the surface of the wood material containing moisture, since metal deposition generally uses high temperature steam. According to the method of the present invention, it is possible to reliably deposit metal on the wood material by adjusting, in the initial wood material processing step, the length of the processed wood material longer than the length of a finished handle such that the blackening of the wood material caused by the moisture is limited to the marginal length. Also, as a pre-metal deposition step, the surface of the wood material is coated with a polymer resin material such that the metal material can be stably deposited on the surface of the wood material in a similar manner to depositing the metal on the surface of a plastic material.

[0039] The metal used for the deposition may be one or more selected from gold, silver, copper, chromium, aluminum, etc., and it is preferable to deposit silver. In addition, the metal deposition layer is preferably formed to a thickness of 10 to 1000 µm.

[0040] It is preferable to employ a vacuum deposition method in the deposition step. Since the wood material is easily blackened or burned at a high temperature, the deposition can be carried out stably under a completely vacuum condition so that the metal deposition layer can be reliably formed without burning the wood material.

6. Second primer layer forming step



[0041] In the present invention, after the metal deposition layer is formed, a second primer layer is formed on the metal deposition layer. The second primer layer may be formed using the same material by the same method as the first primer layer.

7. Second paint coating step



[0042] In an embodiment of the present invention, after the second primer layer is formed, second paint may be coated on the second primer layer so that the finished handle may exhibit various colors. Herein, since color variation may be increased and color aggregation may occur when the coating material is mixed with a UV coating liquid, it is preferable to carry out the coating of the paint separately from the UV coating.

[0043] The second paint may be coated on the second primer layer by a spraying method using a spray gun, wherein the spraying is preferably performed using 16 to 24 spray guns.

8. Second UV coating layer forming step



[0044] The handle with the second primer layer (or the second paint thereon) can have a second UV coating layer, which can protect the surface thereof finally. Such a second UV coating layer can be formed in the same manner as the first UV coating layer as described above.

[0045] In an embodiment of the present invention, the handle formed with the second UV coating layer may be subject to an additional drying step.

[0046] The brush handle manufactured by the above-described process can be completed by cutting the marginal length portion to a desired size by laser processing or the like.

[0047] The present invention also relates to a brush handle, including: a wood material; a first primer layer formed on the wood material; a metal deposition layer formed on the first primer layer; and a second primer layer formed on the metal deposition layer. Each of the layers constituting the brush handle may be formed according to the process as described above.

[0048] In another embodiment of the present invention, a brush handle includes: a wood material; a first paint layer formed on the wood material; a first primer layer formed on the first paint layer; a first UV coating layer formed on the first primer layer; a metal deposition layer formed on the first UV coating layer; a second primer layer formed on the metal deposition layer; a second paint layer formed on the second primer layer; and a second UV coating layer formed on the second paint layer. Each of the layers constituting the brush handle may be formed according to the process as described above.

[0049] While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that the present invention is not limited to the disclosed embodiments, but, on the contrary, it should be understood that the present invention may be embodied with various changes and modifications without departing from the spirit or scope of the invention and such modifications and variations are also intended to be within the technical scope of the present invention.


Claims

1. A method for manufacturing a brush handle, comprising the steps of:

processing a wood material into a predetermined shape;

forming a first primer layer on the processed wood material;

forming a metal deposition layer by depositing metal on the first primer layer; and

forming a second primer layer on the metal deposition layer.


 
2. The method for manufacturing a brush handle according to claim 1, wherein the processed wood material has a marginal length of 1 to 6 cm.
 
3. The method for manufacturing a brush handle according to claim 2, further comprising the step of cutting the marginal length, after the second primer layer forming step.
 
4. The method for manufacturing a brush handle according to claim 1, further comprising the steps of:

coating a first paint on the processed wood material, after the wood material processing step; and

coating a second paint on the second primer layer, after the second primer layer forming step.


 
5. The method for manufacturing a brush handle according to claim 4, wherein the first paint coating step is performed by dipping.
 
6. The method for manufacturing a brush handle according to claim 4, further comprising the step of cleaning the wood material coated with the first paint, after the first paint coating step.
 
7. The method for manufacturing a brush handle according to claim 4, further comprising the step of drying the wood material coated with the first paint, after the first paint coating step.
 
8. The method for manufacturing a brush handle according to claim 1, wherein the first primer layer includes one or more selected from the group consisting of polyethylene terephthalate(PET), polymethyl methacrylate(PMMA), Polycarbonate(PC), and acrylonitrile butadiene styrene(ABS).
 
9. The method for manufacturing a brush handle according to claim 1, further comprising the step of forming a first UV coating layer after the first primer layer forming step.
 
10. The method for manufacturing a brush handle according to claim 9, further comprising a drying step after the first UV coating layer forming step.
 
10. The method for manufacturing a brush handle according to claim 1, wherein the metal includes at least one selected from gold, silver, copper, chromium and aluminum.
 
12. The method for manufacturing a brush handle according to claim 1, wherein the metal deposition layer forming step is performed by a vacuum deposition method.
 
13. The method for manufacturing a brush handle according to claim 4, wherein the second paint coating step is performed by spraying.
 
14. The method for manufacturing a brush handle according to claim 13, wherein the spraying is performed using 16 to 24 spray guns.
 
15. The method for manufacturing a brush handle according to claim 1, further comprising the step of forming a second UV coating layer on the second primer layer.
 


Amended claims in accordance with Rule 137(2) EPC.


1. A method for manufacturing a brush handle, comprising the steps of:

processing a wood material into a predetermined shape;

forming a first primer layer on the processed wood material;

forming a metal deposition layer by depositing metal on the first primer layer; and

forming a second primer layer on the metal deposition layer.


 
2. The method for manufacturing a brush handle according to claim 1, wherein the processed wood material has a marginal length of 1 to 6 cm.
 
3. The method for manufacturing a brush handle according to claim 2, further comprising the step of cutting the marginal length, after the second primer layer forming step.
 
4. The method for manufacturing a brush handle according to claim 1, further comprising the steps of:

coating a first paint on the processed wood material, after the wood material processing step; and

coating a second paint on the second primer layer, after the second primer layer forming step.


 
5. The method for manufacturing a brush handle according to claim 4, wherein the first paint coating step is performed by dipping.
 
6. The method for manufacturing a brush handle according to claim 4, further comprising the step of cleaning the wood material coated with the first paint, after the first paint coating step.
 
7. The method for manufacturing a brush handle according to claim 4, further comprising the step of drying the wood material coated with the first paint, after the first paint coating step.
 
8. The method for manufacturing a brush handle according to claim 1, wherein the first primer layer includes one or more selected from the group consisting of polyethylene terephthalate(PET), polymethyl methacrylate(PMMA), Polycarbonate(PC), and acrylonitrile butadiene styrene(ABS).
 
9. The method for manufacturing a brush handle according to claim 1, further comprising the step of forming a first UV coating layer after the first primer layer forming step.
 
10. The method for manufacturing a brush handle according to claim 9, further comprising a drying step after the first UV coating layer forming step.
 
11. The method for manufacturing a brush handle according to claim 1, wherein the metal includes at least one selected from gold, silver, copper, chromium and aluminum.
 
12. The method for manufacturing a brush handle according to claim 1, wherein the metal deposition layer forming step is performed by a vacuum deposition method.
 
13. The method for manufacturing a brush handle according to claim 4, wherein the second paint coating step is performed by spraying.
 
14. The method for manufacturing a brush handle according to claim 13, wherein the spraying is performed using 16 to 24 spray guns.
 
15. The method for manufacturing a brush handle according to claim 1, further comprising the step of forming a second UV coating layer on the second primer layer.
 




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