Patent Publication Number: US-8109278-B2

Title: Dye container and hair dyeing device using the same

Description:
TECHNICAL FIELD 
     The present invention relates to a hair dyeing device, and more particularly to a hair dyeing device which is capable of easily using dyes in dye containers (for example, tubes, bottles, or bags) containing dyeing liquids therein without forcibly extracting the dyeing liquids from the dye containers when hair (for example, hair of the head, fiber, or body hair) is to be dyed (for example, decolored, colored, developed, or coated), which is capable of using dyes in dye containers as much as desired without wasting dyes, which is capable of easily and quickly mixing various dyes (for example, a base dyestuff and a stabilizer, a developer, a decolorizer, or other dyestuffs to be mixed with the base dyestuff) as much as desired, whereby hair is easily and conveniently dyed with new colors. The present invention also relates to a dye container which can be used in such a hair dyeing dev ice. 
     BACKGROUND ART 
     Up to now, various hair dyeing devices have been proposed, examples of which are disclosed in the following patents.
         1. Korean Utility Model No. 200270351 filed on October 2001 in the name of Esther Cos. Co., Ltd.   2. Korean Utility Model No. 200151735 filed on July 1997 in the name of Dong Sung Pharm. Co., Ltd.   3. Korean Utility Model No. 200151736 filed on March 1997 in the name of Dong Sung Pharm. Co., Ltd.   4. U.S. Pat. No. 6,513,534 filed on October 1999 in the name of Montec Products Development Ltd. (Ill.)   5. U.S. Pat. No. 6,460,546 filed on August 2001 in the name of Montec Products Development Ltd. (Ill.)   6. U.S. Pat. No. 6,457,476 filed on January 2001 in the name of The Procter &amp; Gamble Co.   7. U.S. Pat. No. 6,453,909 filed on March 2000 in the name of L&#39;Oreal S. A. (Paris, FR)   8. U.S. Pat. No. 6,450,366 filed on October 2000 in the name of L&#39;Oreal S. A. (Paris, FR)   9. U.S. Pat. No. 6,431,178 filed on January 2000 in the name of Pentel Kabushiki Kaisha (JP)   10. U.S. Pat. No. 6,390,101 filed on May 2000 in the name of Larry Rush Alexander (Evanston, Ill.)   11. U.S. Pat. No. 6,386,778 filed on January 2001 in the name of The Gillette Company (Boston, Mass.)   12. U.S. Pat. No. 6,357,450 filed on December 2000 in the name of Andrew Paice (GB)   13. U.S. Pat. No. 6,357,449 filed on November 2000 in the name of New Basics, Inc. (Boston, Mass.)   14. U.S. Design Pat. No. D442,331 filed on April 2000 in the name of New Basics, Inc. (Boston, Mass.)   15. U.S. Pat. No. 6,334,727 filed on April 2000 in the name of L&#39;Oreal S. A. (Paris, FR)   16. U.S. Pat. No. 6,334,449 filed on May 2000 in the name of The Procter &amp; Gamble Co.   17. U.S. Pat. No. 6,285,518 filed on August 1999 in the name of Michel Laporte (FR)   18. U.S. Pat. No. 6,260,557 filed on July 2000 in the name of Christine Yarbrough (Fla.)   19. U.S. Pat. No. 6,244,433 filed on February 2000 in the name of L&#39;Oreal S. A. (Paris, FR)   20. U.S. Pat. No. 6,182,822 filed on August 1998 in the name of L&#39;Oreal S. A. (Paris, FR)   21. U.S. Pat. No. 6,176,389 filed on December 1998 in the name of L&#39;Oreal S. A. (Paris, FR)   22. U.S. Pat. No. 6,145,513 filed on February 1999 in the name of New Basics, Inc. (Boston, Mass.)   23. U.S. Pat. No. 6,142,157 filed on February 1999 in the name of L&#39;Oreal S. A. (Paris, FR)   24. U.S. Pat. No. 6,062,230 filed on July 1998 in the name of Zarko Kajgana (Ohio)   25. U.S. Pat. No. 6,053,177 filed on February 1999 in the name of Montec Products Development Ltd. (Ill.)   26. U.S. Pat. No. 6,012,462 filed on April 1999 in the name of Rodney L. Schmittou (Calif.)   27. U.S. Pat. No. 6,009,881 filed on October 1998 in the name of L&#39;Oreal S. A. (Paris, FR)   28. U.S. Pat. No. 5,937,866 filed on April 1998 in the name of Laila Magharehi (Calif.)   29. U.S. Pat. No. 5,913,314 filed on October 1998 in the name of Michelle R. Garrett (MD.)   30. U.S. Pat. No. 5,848,730 filed on December 1998 in the name of Kao Corporation (Tokyo, JP)   31. U.S. Pat. No. 5,778,902 filed on December 1996 in the name of Christine Nagy (N.Y.)   32. U.S. Pat. No. 5,676,480 filed on April 1996 in the name of Nada Tosto (N.Y.)   33. U.S. Pat. No. 5,593,065 filed on January 1997 in the name of Pakmax, Inc. (N.J.)   34. U.S. Pat. No. 5,569,368 filed on June 1995 in the name of Edvin G. Larsky (Va.)   35. U.S. Pat. No. 5,472,456 filed on January 1995 in the name of Edvin G. Larsky (Va.)   36. European Pat. No. 1,018,309 filed on July 2000 in the names of Pentel Kabushiki Kaisha (JP) and Taico Co. (JP)       

     The above-mentioned conventional hair dyeing devices may be classified into several types of hair dyeing devices, which will be now described. 
     A first type of hair dyeing device, which is shown in  FIG. 1   a , is a device wherein a predetermined amount of dye (or paste) is taken out of each of dye containers  1 , which are not connected to a main body  3  of the hair dyeing device, so that the dyes taken out of the dye containers  1  are mixed, the mixed dyes are filled into a cylinder  2  of the hair dyeing device, which is formed in the shape of a syringe or an airtight container, and a piston is pushed so that the mixed dyes are discharged through holes  4  defined in tines or through holes  4   a  defined between the tines. 
     A second type of hair dyeing device is a device wherein a predetermined amount of dye is taken out of each of dye containers  1 , which are not connected to the hair dyeing device, so that the dyes taken out of the dye containers  1  are mixed, as in the first type of hair dyeing device, the mixed dyes are filled into a collapsible bag, which is pressed so that the mixed dyes are discharged through holes  4  defined in tines or through holes  4   a  defined between the tines. 
     A third type of hair dyeing device, which is shown in  FIG. 1   b , is a device wherein a predetermined amount of dye is taken out of each of dye containers  1 , which are not connected to a main body  6  of the hair dyeing device, so that the dyes taken out of the dye containers  1  are mixed, as in the first or second type of hair dyeing device, the mixed dyes are filled into a cylinder  2  of the hair dyeing device, and the mixed dyes in the cylinder  2  are discharged through holes (not shown) defined in tines by means of a driving unit comprising motor  5 , a gear  8 , and a cam  9 . 
     In each of the first to third types of hair dyeing devices with the above-stated constructions, a predetermined amount of dye must be taken out of each of the dye containers  1 , which are not connected to the main body  3  or  6  the hair dyeing device, the dyes taken out of the dye containers  1  must be mixed by hand or other various means, and then the mixed dyes must be put into the cylinder  2  of the hair dyeing device. The above-mentioned process must be repeatedly carried out when the mixed dyes are insufficient or excessive during a dyeing operation. Furthermore, flow channels formed in the cylinder  2  or the tines may become clogged, but there is provided no means for opening the clogged flow channels. Consequently, hands, the hair dyeing devices, or the environment may be easily contaminated when the dyeing operation is carried out using any of the aforesaid hair dyeing devices. 
     A fourth type of hair dyeing device is a device wherein a spray can is attached to the outside of the hair dyeing device or attached to a main body of the hair dyeing device in such a manner that the spray can serves as a handle, so that a dye and a developer are sprayed due to the pressure of gas in the spray can. This type of hair dyeing device has advantages in that the hair dyeing device is not equipped with a cylinder and piston unit for discharging the dye and in that there is no necessity for taking out two dyes from the containers, mixing the taken-out dyes, and filling the mixed dyes into the cylinder of the hair dyeing device. However, the fourth type of hair dyeing device also has disadvantages in that the dye is scattered due to being aerosolized, and thus the skin of a user is contaminated, the aerosolized dye gets into the eyes of the user, or the environment is contaminated. 
     A fifth type of hair dyeing device is a device wherein dye is filled into a pressure container, which is in turn hermetically sealed, so that the dye is discharged through a hose by means of a pressure difference created when an external pressurized air is blown into the pressure container. Although no previous mixing process of dyes is required, the dye must be taken out of a dye container containing the dye and filled into the pressure container, and then the pressure container must be hermitically sealed. Furthermore, air may be introduced into the hose when the pressure container is shaken or tilted. As a result, the dye is dangerously spouted. Consequently, this type of hair dyeing device has disadvantages in that only a watery dye can be used in the hair dyeing device. 
     Moreover, the dye cannot be uniformly distributed by force through the holes defined in the tines according to the first to fifth types of hair dyeing devices and other conventional hair dyeing devices. Specifically, the dye is distributed to the respective holes through orifices and is then discharged through the holes, or the dye is distributed to the respective orifices and is then discharged through the orifices in all of the conventional hair dyeing devices. However, the dye is discharged through naturally opened holes since the respective dye holes communicate with each other. Consequently, the conventional hair dyeing devices are not capable of uniformly distributing in force the dye. Especially when the flow of the dye is obstructed or the holes are clogged, the dye is applied to the head of a user partially excessively and partially insufficiently since the flow rate of the dye passing through the obstructed holes is quite different from that of the dye passing through the remaining normal hole. As a result, the dye may run down the face of the user or splash. 
     DISCLOSURE OF THE INVENTION 
     Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a hair dyeing device which is capable of easily using dyes in dye containers containing dyeing liquids therein without forcibly extracting the dyeing liquids from the dye containers when hair is to be dyed, which is capable of using dyes in dye containers as much as desired without wasting dyes, which is capable of easily and quickly mixing various dyes as much as desired, whereby hair is easily and conveniently dyed with new colors. 
     It is another object of the present invention to provide a dye container which can be used in such a hair dyeing device. 
     In accordance with one aspect of the present invention, the above and other objects can be accomplished by the provision of a dye container for storing a hair dye, comprising: a dye-containing space adapted not to make contact with the air introduced by discharging the dye; the dye-containing space being defined in a thin resin film, the thin resin film being easily collapsible so that a negative pressure applied to the dye-containing space is small when the dye is sucked from the dye container; and at least one mouth adapted so that the dye is discharged through the mouth. 
     Preferably, the dye container further comprises at least one hole formed at the outside of the dye container adjacent to the dye-containing space so that the negative pressure created by diminution of the dye is reduced. 
     In accordance with another aspect of the present invention, there is provided a hair dyeing device for discharging dye by means of an electric force to dye hair, comprising: a main body having a motor, a power source, a switch, and a port formed so that at least one dye container as mentioned above is attached to the main body through the port; a comb assembly attached to the main body, the comb assembly comprising a plurality of tines, each of the tines having at least one flow channel formed therein; at least one pump connected to the motor for supplying dye contained in the dye container attached to the main body to the tines of the comb assembly; and flow channels formed so that the dye supplied by the pump flows to the respective tines along the corresponding flow channels. 
     Preferably, the comb assembly is pivotably attached to one end of the main body. 
     Preferably, each of the tines of the comb assembly has one to eight flow channels formed therein. 
     Preferably, the pump mounted in the main body is a multi channel pump having a plurality of pumping elements divided by partitions, the pumping elements being coaxially arranged, and wherein the number of the pumping elements corresponds to that of the tines. 
     Preferably, the hair dyeing device further comprises a valve mounted in each of the flow channels formed between the pump and the comb assembly so that the dye is discharged through each of the flow channels while the dye is mixed with another dye or the dye is discharged through each of the flow channels while the dye is not mixed with another dye depending upon selected positions of the valve. 
     Preferably, the hair dyeing device further comprises an intermediate plate attached to the port formed in the main body so that the dye container is easily replaced irrespective of the size of a mouth of the dye container. 
     Preferably, the hair dyeing device further comprises a plurality of dispensers disposed between the pump and the comb assembly for uniformly distributing the dye supplied by the pump, wherein each of the dispensers has a plurality of rotors arranged on the same shaft. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: 
         FIGS. 1   a  and  1   b  are schematic views showing conventional hair dyeing devices, respectively; 
         FIG. 2  is a perspective view of a hair dyeing device according to a first preferred embodiment of the present invention; 
         FIG. 3  is a side view, partially cut away, of the hair dyeing device of  FIG. 2  showing the interior of the hair dyeing device; 
         FIG. 4  is a plan view, partially cut away, of the hair dyeing device of  FIG. 2  showing the interior of the hair dyeing device; 
         FIG. 5  is a view showing a dye container of the present invention; 
         FIG. 6  is a sectional view of a comb assembly of the hair dyeing device of  FIG. 2  showing the mixing operation of the comb assembly; 
         FIG. 7  is a sectional view of a comb assembly of the hair dyeing device of  FIG. 2  showing the separating operation of the comb assembly, 
         FIG. 8  is a view showing a multi channel pump of the hair dyeing device of  FIG. 2 ; 
         FIG. 9  is a projection view showing an outer casing of the multi channel pump of  FIG. 8 ; 
         FIG. 10  is a projection view showing an inner casing of the multi channel pump of  FIG. 8 ; 
         FIG. 11  is a projection view showing a rotor of the multi channel pump of  FIG. 8 ; 
         FIG. 12  is an assembled sectional view showing a valve of the hair dyeing device of  FIG. 2 ; 
         FIG. 13  is a sectional view showing an outer casing, to which the comb assembly is attached, of the valve of  FIG. 12 ; 
         FIG. 14  is a sectional view showing an inner casing, to which the comb assembly is attached, of the valve of  FIG. 12 ; 
         FIG. 15  is a sectional view showing a valve casing of the valve of  FIG. 12 ; 
         FIGS. 16   a  and  16   b  are projection views respectively showing the valve of  FIG. 12 ; 
         FIGS. 17   a  to  17   c  are projection views respectively showing an intermediate plate of the present invention; 
         FIG. 18  is a hydraulic circuit diagram of the hair dyeing device according to the first preferred embodiment of the present invention; 
         FIG. 19  is a side view, partially cut away, of a hair dyeing device according to a second preferred embodiment of the present invention showing the interior of the hair dyeing device; 
         FIG. 20  is a view showing a multi channel dispenser of the present invention; 
         FIG. 21  is a projection view showing an outer casing of the multi channel dispenser of  FIG. 20 ; 
         FIG. 22  is a projection view showing an inner casing of the multi channel dispenser of  FIG. 20 ; 
         FIG. 23  is a projection view showing an rotor of the multi channel dispenser of  FIG. 20 ; and 
         FIG. 24  is a hydraulic circuit diagram of the hair dyeing device of  FIG. 19 . 
     
    
    
     BEST MODE FOR CARRYING OUT THE INVENTION 
     The present invention relates to a dye container and a hair dyeing device using the same. The general constructions of the dye container and the hair dyeing device will be first described with reference to  FIGS. 2 to 4 , and then the dye container will be described in detail with reference to  FIG. 5 . 
     Referring to  FIGS. 2 to 4 , the hair dyeing device according to a first preferred embodiment of the present invention comprises a main body  20 , a head unit  30 , and a comb assembly  40 . The main body  20  serves as a handle. 
     Dye containers  10  for containing dye are detachably attached to ports  150 , which are formed in the main body  20  or the head unit  30  so that the dye containers  10  can be easily attached to or detached from the ports  150 . 
     The head unit  30  is coupled with the comb assembly  40 . Also, the head unit  30  is hinged to the main body  20  of the hair dyeing device in a similar fashion to a hair drier. 
     Various kinds of containers having different capacities may be used as the dye containers  10  according to the use thereof, for example, depending upon whether they are disposable or rechargeable. Preferably, the dye containers  10  each formed in the shape of a tube of toothpaste as shown in  FIG. 2  may be conveniently used. Alternatively, cartridge-type dye containers  10 ′ as shown in  FIG. 5  may be also advantageously used in that the dye containers  10 ′ can be repeatedly reused. Whichever containers  10  or  10 ′ are used, it is most preferable that the respective containers  10  or  10 ′ have structures wherein the dyes do not make contact with air when the dye is diminished so that degeneration of the dyes caused by contact of the dyes with the air is prevented. 
     The tube-type dye containers  10  prevent introduction of air into the dye containers while the dyes are discharged. 
     In the hair dyeing device of the present invention, the dyes are sucked from the dye containers by using a pump. Consequently, no external force is applied to the tube-type dye containers  10  as compared to the case that the tube-type dye containers are pressed by hands to extract the dyes from the tube-type dye containers. For this reason, each of the tube-type dye containers  10  may be made of a soft synthetic resin and manufactured with as small a thickness as possible so that little negative pressure is applied to the interior of each of the dye containers  10  or no negative pressure is applied to the interior of each of the dye containers  10 . 
     Each of the cartridge-type dye containers  10 ′ as shown in  FIG. 5  preferably comprises: a casing  10 ′ a , made of a hard synthetic resin, having mouths  10 ′ c;  and thin bags  10 ′ b  disposed in the casing  10 ′ a . The casing  10 ′ a  has holes  10 ′ d  formed therethrough. In the cartridge-type dye containers  10 ′, the thin bags  10 ′ b  are flexibly contracted when the dyes filled in the thin bags  10 ′ b  are pumping out, whereby contact of the dyes and the air is prevented while the resistance of the thin bags  10 ′ b  is reduced. 
     As shown in  FIG. 3 , in the interior of the main body  20  of the hair dyeing device are mounted a power source  50 , a motor  60 , and a pump  80 . On the exterior of the main body  20  of the hair dyeing device is mounted a switch (not shown) for regulating the power applied to the motor  60 . As the pump  80  may be used a vane pump for easily controlling a discharge amount of the dye by means of the motor  60 , although a positive-displacement pump, such as a gear pump or a rotary pump, may be used depending upon the characteristics of the dyes. Preferably, a pump with a small capacity, for example, 5-30 cc/min is selected. A reduction gear  70  may be provided depending upon the kind of the motor  60 . The comb assembly  40  can be rotated to the position indicated by numerical number  40 ′ so that the angle of the comb assembly  40  can be easily adjusted when the hair dyeing device is in use or stored. 
     As shown in  FIGS. 6 and 7 , the comb assembly  40  includes a plurality of tines  41 , each of which is made of a plate-shaped member with wider width than the conventional comb. Each of the tines  41  has inner flow channels  41   a  and  41   b  longitudinally formed therethrough. The tines  41  are preferably arranged on the basis of the section of each of the tines  41 . Specifically, when each of the tines  41  is formed in the shape of a thin and wide plate-shaped member, the tines  41  may be arranged in one or two rows so that the comb assembly has two combing directions when the hair of the user is combed. When each of the tines  41  is formed in the shape of a thin and round member, the tines  41  may be arranged in several rows and columns, like a brush, so that the comb assembly has no combing direction when the hair of the user is combed. When the width of each of the tines  41  is large, the number and the shape of the inner flow channels  41   a  and  41   b  are easily changed. Furthermore, it is advantageous to prevent deformation, damage, and wear caused by friction between the tines  41  and the hair during the dyeing process. The flow channels  41   a  and  41   b  may be completely separated from each other. Alternatively, the flow channels  41   a  and  41   b  may be connected to each other at the upper parts, the middle parts, or the lower parts of the flow channels  41   a  and  41   b , by which dyeing patterns are changed. As shown in  FIG. 7 , the lower end of each of the tines  41  is pointed so that the combing operation is successfully carried out, and the lower ends of the flow channels  41   a  and  41   b  are exposed. 
     Each of the tines  41  of the comb assembly  40  has one to eight flow channels  41   a  and  41   b  formed therein. The number of the flow channels  41   a  and  41   b  preferably corresponds to that of the dyes so that not only the dyes are properly mixed but also the dyes are properly separated or the holes through which the dyes have passed are properly washed. 
     Each of the tines  41  may be manufactured by means of extrusion molding or deformation processing of a metal sheet when the lengths of the tines  41  are large. On the other hand, each of the tines  41  may be manufactured by means of injection molding when the lengths of the tines  41  are small. 
     As the pump  80  of the present invention may be preferably used a dual (double) pump or a multi mump having pump units, the number of which corresponds to that of the dyes to be supplied. The pump  80  has an inlet  81   a  and a plurality of outlets  81   b  so that a plurality of dyes are uniformly distributed by force. In other words, a multi channel system is most preferable in which pumping elements  83  ( FIG. 11 ), the number of which corresponds to that of the tines  41  each having the flow channels  41   a  and  41   b  formed therethrough, are coaxially connected so that the pumping elements  83  are synchronized. 
     Referring to  FIGS. 8 to 11 , the pump  80  comprises an outer casing  81  ( FIG. 9 ), an inner casing  82  ( FIG. 10 ), and pumping elements  83  ( FIG. 11 ). The total discharge amount of the pumping elements  83  equals the discharge amount of the pump  80  of the hair dyeing device. 
     The inner casing  82  is disposed in the outer casing  81 . The outer casing  81  is provided at the upper part thereof with an inlet  81   a  corresponding to an inlet  82   a  of the inner casing  82 . The outer casing  81  is provided at the lower part thereof with a plurality of outlets  81   b  corresponding to outlets  82   b  of the inner casing  82 . 
     The inner casing  82  comprises an upper casing part  82   u  and a lower casing part  821 . The upper casing part  82   u  is engaged with the lower casing part  821 . The inlet  82   a  is provided at the upper part of the inner casing  82 , and the outlets  82   b  are provided at the lower part of the inner casing  82 . The interior space of the inner casing  82  comprising the upper casing part  82   u  and the lower casing part  821  is composed of a plurality of chambers  82   d  divided from each other by partitions  82   c . Chambers each having a separated partition may be coaxially arranged or chambers may be arranged in such a manner that the neighboring chambers have a common partition to coaxially integrate all of the chambers. 
     Each of the pumping elements  83  comprises a plurality of rotors  83   a  arranged on the same shaft. Each of the pumping elements  83  is provided at one end thereof with a coupling  84  for connecting with the motor  60  or the reduction gear  70 . 
     An external gear pump, an internal gear pump, a trochoid pump, a rotary pump, a plunger pump, a squeeze pump, a peristaltic pump, a diaphragm pump, a vane pump, or any other pumps may be applied to the basic mechanism of the pump  80  of the present invention. When the design of the multi channel pump is considered, however, the gear pump or the rotary pump, which is the positive-displacement pump, is preferably used. The pump  80  shown in  FIG. 8  is the external gear pump. 
     The main body  20  or the head unit  30  of the hair dyeing device of the present invention has the ports  150  formed therein, in which the dye containers  10  or  10 ′ are mounted. It is preferable to standardize the ports in manufacturing the main body of the hair dyeing device. Various dye containers with different sizes may be attached to the main body  20  or the head unit  30  of the hair dyeing device by disposing an intermediate plate  110 , which will be described later, between the dye containers and the main body or the head unit of the hair dyeing device. 
     Also, the hair dyeing device of the present invention comprises flow channels  90  through which the dyes are supplied to the respective tines  41  of the comb assembly  40  by means of the pump  80 . It is preferable that the inner diameter of each of the flow channels  90  for supplying to the tines  41  of the comb assembly the dyes delivered by the pump  80  in such a manner that the dyes are uniformly distributed by force is larger than that of the each of the flow channels  41   a  and  41   b  of the tines  41 , and sections of flow channels through which the dyes are supplied from the dye containers  10  or  10 ′ to the pump  80  are larger than the sum of the inner diameters of the flow channels  90  though which the dyes are supplied to the tines  41  by means of the pump  80 , whereby flow resistance and choke effect are reduced. The flow channels  90  are preferably made of flexible materials, for example, flexible hoses, so that they are not damaged when the comb assembly  40  is folded or unfolded. 
     As shown in  FIGS. 12 to 16 , the hair dyeing device of the present invention may comprise a valve  100  mounted in the main body  20  of the hair dyeing device for controlling the flow of the dyes. Also, the hair dyeing device of the present invention may further comprise another valve  100  mounted in the head unit  30  of the hair dyeing device for controlling the flow of the dye. The valve  100  mounted in the head unit  30  for selecting a mixing position B-B′ and a separating position A-A′ is shown in  FIGS. 2 to 4 . 
     It is most preferable that the valve  100  is capable of selecting mixing-isolating-separating positions. It is also possible, however, that desired positions are selectively chosen from among the mixing-isolating-separating positions, and then the chosen positions are combined. The combination of the chosen positions results in the provision of a 4 ports-2 positions valve or a 4 ports-3 positions valve. The most preferable combination is a 4 ports  102   a ,  102   b ,  102   c  and  102   d  (FIG.  14 )—2 positions A-A′ and B-B′ valve that is capable of selecting the mixing position B-B′ and the separating position A-A′. An example of the dye mixing position B-B′ of the 4 ports-2 positions valve is shown in  FIG. 6  while an example of the dye separating position A-A′ of the 4 ports-2 positions valve is shown in  FIG. 7 . 
     Preferably, the mixing valve has a neck part  104   c  disposed between a first chamber  104   a  and a second chamber  104   b  so that the dyes are easily stirred and mixed. Means for operating the mixing-isolating-separating valves comprises a lever or cam (not shown). 
     As described above, the ports  150 , through which the dye containers  10  or  10 ′ are detachably attached to the main body  20  or the head unit  30  of the hair dyeing device of the present invention, is formed in the main body  20  or the head unit  30  of the hair dyeing device, and the intermediate plate  110  ( FIG. 17 ) is disposed between the ports  150  and the dye containers  10  or  10 ′ so that a user can choose his/her desired dye containers among various dye containers and then attached the chosen dye containers to the intermediate plate  110 . 
     The intermediate plate  110  ( FIG. 17 ) has dye container attachment parts  110   a , each of which corresponds to the mouth (not shown) of each of the dye containers  10  in terms of shape and size, and main body attachment parts  110   b,  which correspond to the ports  150  formed in the main body  20  or the head unit  30  of the hair dyeing device in terms of shape and size, respectively. Consequently, it is possible to easily change the dye containers by simply replacing the intermediate plate  110 . 
     The ports  150  are formed in the main body  20  or the head unit  30  of the hair dyeing device. Each of the ports  150  has an inner thread part formed in the inner surface thereof so that the dye containers  10  or  10 ′ can be securely engaged in the ports, respectively. Alternatively, each of the ports  150  may be formed in the shape of a truncated cone so that the dye containers  10  or  10 ′ can be more easily engaged in the ports, respectively. Preferably, the dye containers  10  or  10 ′ are easily engaged in or disengaged from the above-mentioned threaded or conical ports  150  while the airtightness of each of the dye containers  10  or  10 ′ is ensured. 
       FIG. 18  shows controlling the hair dyeing device of the present invention to discharge a mixture of two dyes or separately discharge two dyes through flow channels  41   a  and  41   b  of tines  41  of the comb assembly  40 . As shown in  FIG. 18 , two pumps  80  are connected to a single motor  60  so that the pumps  80  are synchronously driven, and dyes in two dye containers  10  or  10 ′ are discharged by the pumps  80 , respectively. On the main body  20  of the hair dyeing device is mounted a switch (not shown) for switching on/off the motor  60 . The valves  100  of the hair dyeing device are disposed in such a manner that the flow channels  41   a  and  41   b  of the tines  41  communicate with each other, are separated from each other, or are opened/closed at the same time. Consequently, the mixed or separated dyes are uniformly discharged through all of the flow channels of the tines  41  of the comb assembly  40  when the position A-A′ or B-B′ of each of the valves  100  is selected and then the motor  60  is operated. 
     It is preferable for safety reasons that the discharge speed of the dyes, in which the dyes supplied along the flow channels  90  are discharged out of the tines  41  of the comb assembly  40 , is not more than 30 mm/sec. It is preferable that a section of each of the flow channels  90  is determined on the basis of the number of the tines  41  and the number of the flow channels  41   a  and  41   b  formed in each tines  41  considering that the volume of a dose of the dye is approximately 120 ml. 
       FIGS. 19 to 24  show a hair dyeing device according to a second preferred embodiment of the present invention. 
     According to this embodiment, a plurality of dispensers  140  are mounted in a head unit  30 ′, with which a comb assembly  40  is coupled. 
     To the head unit  30 ′, with which the comb assembly  40  is coupled, is attached a main body  20  as in the first preferred embodiment described with reference to  FIG. 2 . The head unit  30 ′ is pivotably attached to the main body  20  of the hair dyeing device by means of a hinge  120 . The hair dyeing device according to the second preferred embodiment of the present invention is similar to the hair dyeing device according to the first preferred embodiment of the present invention in that a power source  50 , a motor  60 , and a pump  80  are mounted in the interior of the main body  20  of the hair dyeing device, and in that the comb assembly  40  comprises a plurality of tines  41 . The hair dyeing device according to the second preferred embodiment of the present invention is different from the hair dyeing device according to the first preferred embodiment of the present invention in that the dispensers  140  are mounted in the head unit  30 ′ of the hair dyeing device according to the second preferred embodiment of the present invention. 
     As shown in  FIGS. 20 to 23 , each of the dispensers  140  comprises an outer casing  111 , an inner casing comprising an upper casing part  112   u  and a lower casing part  112   l , and pumping elements  113 . 
     The interior of the inner casing comprising the upper casing part  112   u  and the lower casing part  112   l  may be composed of a plurality of chambers  112   d , each of which has a partition  112   c , as in the multi channel pump of the first preferred embodiment of the present invention. Alternatively, the chambers  112   d  may be arranged in such a manner that the neighboring chambers have a common partition  112   c  to coaxially integrate all of the chambers. It is preferable that the number of the chambers  112   d  corresponds to the number of the tines  41  through which the dyes are discharged irrespective of whether the chambers  112   d  is the separated chambers or the integrated chambers. In the upper casing part  112   u  is formed an inlet  112   a , and in the lower casing part  112   l  are formed a plurality of outlets  112   b,  the number of which corresponds to that of the tines  41 . In the outer casing  111 , in which the inner casing  112   u  and  112   l  is disposed, are formed an inlet  111   a,  which corresponds to the inlet  112   a  of the upper casing part  112   u , and a plurality of outlets  111   b , which correspond to the outlets  112   b  of the lower casing part  112   l,  respectively. To the outer surface of the outer casing  111  are attached brackets, which serve to support flexible flow channels. Each of the pumping elements  113  comprises a plurality of rotors  113   a  arranged on the same shaft. The pumping elements  113  are rotatably mounted in the inner casing  112   u  and  112   l  as in the pump  80  of the first preferred embodiment of the present invention. However, the pumping elements  113  are not connected to the motor  60  so that the axial force from the motor  60  is not transmitted to the pumping elements  113 . The pumping elements  113  are operated by means of the pressure of the dyes discharged by the pump. 
     As shown in  FIGS. 19 to 24 , a single channel-multi pump system is adopted instead of the multi channel-multi pump system shown in  FIGS. 2 to 4 . The dispensers  140  are mounted in the head unit  30 ′ of the hair dyeing device. It is possible to mount the dispensers  140  at required positions on a hydraulic circuit. 
     The dispensers  140  act as a substitute to the multi channel pump  80 . Consequently, even though there exists resistance in the flow channel formed in any one of the tines  41 , the pumping elements in the remaining flow channels serve as the motor to forcibly perform a pumping operation in the flow channel with the resistance so that the discharge amount of the dyes is uniformly maintained. In this way, the dyes discharged by each of the single pumps are uniformly distributed by force when passing through the multi channel dispensers  140 . 
     As the hair dyeing device is equipped with the dispensers  140 , the structure of the pump  80  is simplified as a single pump. The dispensers  140  and the single pumps together perform the same function as the multi channel pump. A trochoid pump, a rotary pump, or any other pump may be used. However, a gear pump system is advantageous considering design of the hair dyeing device based on a small size. 
     When assembling the hair dyeing device of the present invention, to the inlet  111   a  of the outer casing  111  is connected the flexible flow channel of the pump  80 , and to the outlets  111   b  of the outer casing  111  are connected the upper ends of the flow channels formed in the tines  41 . 
       FIG. 24  is a hydraulic circuit diagram of the hair dyeing device according to the second preferred embodiment of the present invention, which is similar to  FIG. 18 . As shown in  FIG. 24 , the dispensers  140  are disposed between the pumps  80  and the comb assembly  40 . It should be noted, however, that the provision of the dispensers  140  is dispensable. In the case that each of the pumps  80  is a multi channel pump, the construction as shown in  FIG. 18  may be adopted. 
     The head unit  30 ′ as shown in  FIG. 19  is formed in a square shape, whereas the head unit  30  as shown in  FIGS. 2 to 4  is formed in a round shape. Various dye containers with different shapes can be detachably attached to the main body  20  or the head unit  30  or  30 ′ irrespective of the shape of the head unit  30  or  30 ′ of the hair dyeing device. 
     Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. 
     INDUSTRIAL APPLICABILITY 
     As apparent from the above description, the present invention provides a hair dyeing device which is capable of easily using all kinds of dye containers without difficulty of replacement of the dye containers so that selection of desired dyes (including decolorizers, stabilizers, developers, or coating agents) is easy and convenient when hair is to be dyed, for example, developed, colored, decolored, or coated permanently, semi-permanently, or temporarily, which is capable of easily control dyeing speed and dyeing pattern by controlling a power switch and a speed switch, and which is capable of uniformly discharging dyes supplied by pumps through flow channels formed in tines. 
     With the hair dyeing device of the present invention, the dyes can be extracted from the dye containers as much as desired or the same volumes of the dyes can be supplied. Furthermore, the dyes can be easily and conveniently supplemented while the hair is dyed, and the flow channels formed in the tines clogged by the dyes can be easily washed. Also, the skin of a user is not stained with the dyes, and introduction of the dyes into the eyes of the user is effectively prevented. 
     Moreover, the hair dyeing device of the present invention can be conveniently used by general consumers as well as beauty experts, and the hair dyeing device of the present invention can be easily and comfortably used as a general hair drier. Accordingly, the hair dyeing device of the present invention can meet not only special demands but also general demands.