Patent Publication Number: US-2005133947-A1

Title: Grip for makeup brush and method of manufacturing the same

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to a brush grip, and more particularly to a grip for a makeup brush having beauty appearance and made of synthetic resin with good strength and its manufacturing method.  
      2. Description of the Related Art  
      Generally, a makeup brush includes a grip  2 , hair  4  and a combining unit  3  for fixing the grip  2  and the hair  4 , as shown in  FIG. 1 .  
      The grip  2  of such a makeup brush  1  is generally made of wood, and its surface is coated and then a trademark or specification is printed or carved thereon.  
      Thus, the wooden makeup brush grips  1  commonly have a stereotyped design with no difference to other products, so they does not follow up the taste of young customers who prefer novel designs.  
      In addition, the wooden grip can be easily broken down from exterior impacts.  
     SUMMARY OF THE INVENTION  
      Therefore, the present invention is designed to overcome the problems of the prior art, and it is an object of the present invention to provide a grip for a makeup brush with good strength and beauty appearance.  
      In order to accomplish the above object, the present invention provides a grip for a makeup brush having the grip, the hair and a combining unit thereof, which includes a core made of synthetic resin and included in the grip and a brilliant transparent resin layer formed on an outer surface of the core.  
      Another object of the present invention is to provide a method of manufacturing such a grip for a makeup brush.  
      In order to obtain the above object, there is provided a method of manufacturing a grip for a makeup brush, which includes comprising the 3 steps of molding a core by pouring core melt containing resin and pigment into a core mold and then removing the core mold after the core melt is coagulated; molding a grip by pouring transparent resin melt into a grip mold with the molded core fixed at the center of the grip mold and then removing the grip mold after the resin melt is coagulated; cutting an outer surface of the molded grip smooth and cutting an end of the grip, which is to be combined with a combining unit, to have a rough surface with a reduced diameter by using a lathe; and polishing the outer surface of the cut grip by using a sand paper. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      Other objects and aspects of the present invention will become apparent from the following description of embodiments with reference to the accompanying drawing in which:  
       FIG. 1  is a perspective view showing a conventional makeup brush;  
       FIG. 2  is a perspective view showing a makeup brush according to the present invention;  
       FIG. 3  is a flow chart for illustrating the process of making a grip of the makeup brush according to the present invention;  
       FIG. 4  is a flow chart for illustrating the process of molding a core;  
       FIG. 5  is a perspective view showing the core;  
       FIG. 6  is a flow chart for illustrating the molding process of the grip;  
       FIG. 7  exemplarily shows the molding process of the grip;  
       FIG. 8  is a perspective view showing the molded grip;  
       FIG. 9  is a perspective view showing the finished grip; and  
       FIG. 10  is a sectional view showing the grip for the makeup brush according to the present invention. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
      Hereinafter, the present invention will be described in more detail referring to the drawings, and characteristics and advantages of the present invention will be more clearly understood with the following detailed description.  
      First, as shown in  FIGS. 2, 9  and  10 , a grip  20  for a makeup brush  10  according to the present invention includes a core  21  and a transparent resin layer  22 .  
      The core  21  is made by molding resin mixed with a pigment to have a long circular bar shape and then included in the center of the grip  20  along a longitudinal direction of the grip  20 . The resin used for molding the core  21  is preferably synthetic resin such as polyethylene and polypropylene.  
      The transparent resin layer  22  is formed at an outer surface of the core  21  as shown in the figures. This resin layer  22  is also made of polyethylene or polypropylene, and preferably the resin layer  22  is transparent so that the core  21  inside the grip  20  can be seen from outside. Also, the transparent resin layer  22  preferably has brilliance.  
      On the while, the present invention provides a method of manufacturing the grip  20  for a makeup brush  10  constructed as above, which includes a core molding process S 100 , a grip molding process S 200 , a lathe-cutting process S 300 , a polishing process S 400  and complete the grip process S 500  the product as shown in  FIG. 3 . This method is described below with reference to FIGS.  4  to  9 .  
      First, in the core molding process S 100  as shown in  FIG. 4 , resin is mixed with a pigment to make core melt S 102 . The mixed and melted core melt is poured into a long cylindrical hollow core mold S 104 , and then the core melt is coagulated in the core mold S 106 . If the core melt is coagulated, the core mold is removed S 108 , and then the core  21  having a long circular bar shape as shown in  FIG. 5  is completely molded S 110 . At this time, the core  21  may have only one color, but the core  21  may also have unique and beautiful colors with at least two pigments mixed.  
      Then, in the grip molding process S 200  as shown in  FIGS. 6 and 7 , the core  21  molded as above is fixed to an internal center of a grip mold  60 , and then transparent resin melt  22 ′ is poured into the grip mold  60 . Then, after the resin melt  22 ′ is coagulated, the grip mold  60  is removed and then the completed grip  20  is obtained. This transparent resin layer  22  is formed on an outer surface of the colored core  21  as shown in  FIG. 8 .  
      On the other hand, there can be suggested another way to mold the grip more easily. In this modified way, the grip molding process S 200  is conducted using a fixed holder  50 . The fixed holder  50  has a disk-type support  51  and a cylindrical hollow fixing unit  52  protruded from an upper center of the disk-type support  51 , as shown in  FIG. 7 . Thus, during the grip molding process as shown in  FIG. 7 , an end of the molded core  21  is inserted and fixed into the fixing unit  52  of the fixed holder  50  S 202 . Then, an end of a long cylindrical hollow grip mold  60  is inserted and fixed around the fixing unit  52  S 204 . And then, the resin melt  22 ′ is poured into the grip mold  60  S 206  and then coagulated S 208 . If the resin melt  22 ′ is completely coagulated, the grip mold  60  and the fixed holder  50  are removed S 210  and the grip can be more easily molded S 212 . Reference numeral  61  denotes a beaker.  
      In the lathe-cutting process S 300 , a lathe cuts the grip  20  molded in the former process. This process is required for cutting an outer surface of the grip  20  smooth since the molded surface is generally rough and uneven. In addition to cutting the outer surface of the grip  20  smooth, the lathe-cutting process S 200  also performs cutting a combining portion  23 , at which a combining unit  30  for fixing the hair  40  and the grip  20  is combined and fixed, to have a rough surface with a reduced diameter. If the lathe-cutting process is completed, the grip  20  having a shape shown in  FIG. 9  is obtained.  
      Finally, in the polishing process S 400 , the lathe-cut grip  20  is scrubbed with a sand paper to polish a surface of the grip  20 . For such a polishing process, the sand paper polishes the outer surface of the grip  20  to have brilliance while the combining portion  23  of the grip  20  is engaged to a chuck and rotated at high speed.  
      Though not shown in the figures, the polished grip  20  is transferred to the process of assembling the hair  40  and the combining unit  30  through checking and testing processes, and then finally assembled to make the makeup brush  10  as shown in  FIG. 2 .  
      The grip  20  manufactured as above has beautiful and unique appearance and more suitable for the taste of the moderns who pursuit novelty and individuality, rather than the conventional makeup brush grip having a surface of a simple wooden design, since the grip  20  has a dual-type structure in which the core  21  having pretty colors is provided inside the grip  20  and the brilliant transparent resin layer  22  is formed on the surface of the core  21 .  
      In addition, the grip  20  of the present invention has better durability in comparison to the conventional wooden grip since the grip  20  has a dual-type structure of the synthetic resin core  21  and the transparent resin layer  22 .  
     APPLICABILITY TO THE INDUSTRY  
      The present invention provides the grip for a makeup brush having more beautiful appearance and better durability than the conventional one and its manufacturing method.