Emblem for automobile and method of manufacturing the same

Abstract

A method of manufacturing an automobile emblem is disclosed, which is for manufacturing an emblem that is to be disposed on a front surface of an automobile and represents a particular shape. A method of manufacturing an automobile emblem according to an embodiment of the invention can provide an automobile emblem that has a metallic texture and a silver luster without hindering the reception of waves for an automobile front radar.

Claims

1. A method of manufacturing an automobile emblem, the automobile emblem configured to be disposed on a front surface of an automobile and representing a particular shape, the method comprising: transfer-molding a polyester-based resin and demolding to provide a first processed object; annealing the first processed object under a condition of a first temperature to provide a second processed object; coating an outward surface of the second processed object with a first coating material to provide a third processed object, the first coating material comprising a UV resin or an epoxy-based resin and directly contacting the outward surface of the polyester-based resin; irradiating UV rays with a first dose such that the first coating material of the third processed object is hardened to provide a fourth processed object; sputtering a metal-color paint on the first coating material such that the metal-color paint is deposited on an outward surface of the fourth processed object to provide a fifth processed object; laser etching the metal-color paint of the fifth processed object into the particular shape to provide a sixth processed object; applying black-painting on an outward surface of the sixth processed object with a first paint to provide a seventh processed object; applying adhesion-painting on an outward surface of the seventh processed object with a second paint to provide an eighth processed object; transfer-molding a polyvinyl-based resin directly on an outward surface of the adhesion-painting of the eighth processed object and demolding to provide a ninth processed object; coating an outward surface of the polyvinyl-based resin of the ninth processed object with a second coating material to provide a tenth processed object, the second coating material comprising a UV resin or an epoxy-based resin; and irradiating UV rays with a second dose such that the second coating material of the tenth processed object is hardened to provide the automobile emblem.

2. The method of manufacturing an automobile emblem according to claim 1, wherein said step of transfer-molding a polyester-based resin comprises: transfer-molding the polyester-based resin to provide a processed object no. 1-1; and drying said processed object no. 1-1, wherein said transfer-molding comprises: manufacturing said processed object no. 1-1 by way of a first mold comprising a first upper half mold and a first lower half mold, and a first cavity therebetween, the first upper half mold and the first lower half mold configured to provide a first holding space, and the first cavity connecting with the first holding space, wherein the first upper half mold is maintained at a temperature of 135 to 145° C., wherein the first lower half mold is maintained at a temperature of 75 to 85° C., where the first upper half mold and the first lower half mold are pressed together with a clamping pressure of 1200 to 1300 kgf/cm.sup.2, wherein the first cavity is maintained at a temperature of 60 to 70° C., and wherein said processed object no. 1-1 is manufactured by transfer-molding as the polyester-based resin is transported from the first holding space into the first cavity.

3. The method of manufacturing an automobile emblem according to claim 2, wherein the polyester-based resin comprises any one of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate (PC), and polyarylate (PAR).

4. The method of manufacturing an automobile emblem according to claim 2, wherein said step of drying said processed object no. 1-1 is performed for 1 to 2 hours at 115 to 125° C.

5. The method of manufacturing an automobile emblem according to claim 2, wherein said step of transfer-molding the polyester-based resin further comprises keeping said processed object no. 1-1 at a holding pressure of 900 to 950 kgf/cm.sup.2.

6. The method of manufacturing an automobile emblem according to claim 1, wherein said step of annealing comprises: annealing for 15 to 20 minutes at the first temperature; and cooling for 10 minutes at a temperature of 25 to 35° C., and wherein the first temperature is from 30 to 40° C.

7. The method of manufacturing an automobile emblem according to claim 1, wherein the first coating material has a viscosity of 11 to 13 g/cm.Math.s at room temperature, and wherein a spraying device for spraying the first coating material onto the outward surface of the second processed object has an ejection pressure of 1.2 to 1.4 bar.

8. The method of manufacturing an automobile emblem according to claim 1, wherein said step of irradiating UV rays with a first dose comprises: preheating the third processed object for 3 to 5 minutes at 60 to 80° C. to provide a processed object no. 4-1; irradiating the UV rays with the first dose onto said processed object no. 4-1 to provide a processed object no. 4-2; irradiating IR rays onto said processed object no. 4-2 for 5 to 10 minutes at 28 to 32° C. to provide a processed object no. 4-3;and cooling said processed object no. 4-3 at 20 to 25° C. to provide a processed object no. 4-4, and wherein the first dose is 750 to 850 mJ/cm.sup.2.

9. The method of manufacturing an automobile emblem according to claim 1, wherein said step of sputtering comprises: sputtering the metal-color paint onto the outward surface of the fourth processed object while maintaining a flow of argon gas at a first flow rate and under a condition of a DC power of 2.4 kW.

10. The method of manufacturing an automobile emblem according to claim 9, wherein the first flow rate is 25 to 27 sccm, and wherein the metal-color paint is deposited on the outward surface of the fourth processed object for a duration of 3 seconds.

11. The method of manufacturing an automobile emblem according to claim 1, wherein said step of applying black-painting comprises: applying black-painting on the outward surface of the sixth processed object with the first paint by way of a spraying device to provide a processed object no. 7-1; and drying said processed object no. 7-1 for 25 to 30 minutes at a temperature of 60 to 80° C., wherein the first paint has a viscosity of 13 to 15 g/cm.Math.s at room temperature, wherein the spraying device for spraying the first paint onto the outward surface of the sixth processed object has an ejection pressure of 0.8 to 1.0 bar, and wherein said processed object no. 7-1 has the first paint coated in a thickness of 20 to 50 μm.

12. The method of manufacturing an automobile emblem according to claim 1, wherein said step of applying adhesion-painting comprises: applying adhesion-painting on the outward surface of the seventh processed object with the second paint by way of a spraying device to provide a processed object no. 8-1; and drying said processed object no. 8-1 for 25 to 30 minutes at 50 to 60° C., wherein the second paint has a viscosity of 14 to 16 g/cm.Math.s at room temperature, and wherein the spraying device for spraying the second paint onto the outward surface of the seventh processed object has an ejection pressure of 1.7 to 1.8 bar, and wherein the second paint is an adhesive paint configured to improve adhesion between the seventh processed object and the polyvinyl-based resin during the transfer-molding of the polyvinyl-based resin.

13. The method of manufacturing an automobile emblem according to claim 1, wherein said step of transfer-molding a polyvinyl-based resin comprises: preheating the eighth processed object at a second temperature to provide a processed object no. 9-1; transfer-molding the polyvinyl-based resin on top of said processed object no. 9-1 to provide a processed object no. 9-2; and drying said processed object no. 9-2, wherein said transfer-molding comprises: manufacturing said processed object no. 9-2 by way of a second mold comprising a second upper half mold and a second lower half mold, and a second cavity therebetween, the second upper half mold and the second lower half mold configured to provide a second holding space, and the second cavity connecting with the second holding space, wherein the second upper half mold is maintained at a temperature of 55 to 65° C., wherein the second lower half mold is maintained at a temperature of 50 to 60° C., wherein the second upper half mold and the second lower half mold are pressed together with a clamping pressure of 2900 to 3100 kgf/cm.sup.2, wherein the second cavity is maintained at a temperature of 50 to 60° C., and wherein said processed object no. 9-2 is manufactured by transfer-molding as the polyvinyl-based resin is transported from the second holding space into the second cavity.

14. The method of manufacturing an automobile emblem according to claim 13, wherein the polyvinyl-based resin comprises any one of polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyvinyl acetate (PVAC), polyvinyl alcohol (PVAL), polyvinyl acetals, polystyrene (PS), AS resins, ABS resins, poly(methyl methacrylate) (PMMA), and fluorine resins.

15. The method of manufacturing an automobile emblem according to claim 13, wherein said step of preheating the eighth processed object is performed for 60 to 70 minutes at 60 to 80° C.

16. The method of manufacturing an automobile emblem according to claim 13, wherein said step of transfer-molding the polyvinyl-based resin further comprises keeping said processed object no. 9-2 at a holding pressure of 500 to 530 kgf/cm.sup.2.

17. The method of manufacturing an automobile emblem according to claim 13, wherein said step of drying said processed object no. 9-2 is performed for 1 to 2 hours at 85 to 95° C.

18. The method of manufacturing an automobile emblem according to claim 1, wherein the second coating material has a viscosity of 11 to 13 g/cm.Math.s at room temperature, and wherein a spraying device for spraying the second coating material onto the outward surface of the ninth processed object has an ejection pressure of 0.8 to 0.9 bar.

19. The method of manufacturing an automobile emblem according to claim 1, wherein said step of irradiating UV rays with a second dose comprises: preheating the tenth processed object for 3 to 5 minutes at 60 to 80° C. to provide a processed object no. 11-1; irradiating the UV rays with the second dose onto said processed object no. 11-1 to provide a processed object no. 11-2; irradiating IR rays onto said processed object no. 11-2 for 7 to 9 minutes at 55 to 60 ° C. to provide a processed object no. 11-3; and cooling said processed object no. 11-3 at 20 to 25° C. to provide the automobile emblem, and wherein the second dose is 2900 to 3100 mJ/cm.sup.2.

20. An emblem for an automobile manufactured by the method of manufacturing an automobile emblem according to claim 1, the emblem having a metallic texture and a silver luster, wherein the emblem does not hinder a reception of electromagnetic waves of a vehicle front radar.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a flowchart illustrating a method of manufacturing an automobile emblem according to an embodiment of the invention.

(2) FIG. 2 is a perspective view conceptually illustrating an automobile emblem manufactured by a method of manufacturing an automobile emblem according to an embodiment of the invention.

(3) FIGS. 3A to 3D conceptually illustrate a first step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(4) FIGS. 4A to 4D conceptually illustrate a second step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(5) FIGS. 5A and 5B conceptually illustrate a third step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(6) FIGS. 6A to 6D and FIGS. 7A to 7D conceptually illustrate a fourth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(7) FIGS. 8A and 8B conceptually illustrate a fifth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(8) FIGS. 9A and 9B conceptually illustrate a sixth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(9) FIGS. 10A to 10D conceptually illustrate a seventh step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(10) FIGS. 11A to 11D conceptually illustrate an eighth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(11) FIGS. 12A and 12B and FIGS. 13A to 13D conceptually illustrate a ninth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(12) FIGS. 14A and 14B conceptually illustrate a tenth step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

(13) FIGS. 15A to 15D and FIGS. 16A to 16D conceptually illustrate an eleventh step in a method of manufacturing an automobile emblem according to an embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

(14) A specific embodiment of the present invention is described below with reference to the accompanying drawings. However, the spirit of the invention is not to be limited by the embodiment presented herein, and while a skilled person understanding the spirit of the invention would be able to readily propose a less inventive implementation or other embodiments that are encompassed within the scope of the present inventive spirit by adding, modifying, or omitting certain components within the scope of the same inventive spirit, it should be appreciated that such implementations and embodiments remain within the scope of the present inventive spirit.

(15) Elements having the same function within the scope of the same concept shown in the drawings for each embodiment are described using the same reference numerals.

(16) FIG. 1 is a flowchart illustrating a method of manufacturing an automobile emblem according to an embodiment of the invention, and FIG. 2 is a perspective view conceptually illustrating an automobile emblem manufactured by a method of manufacturing an automobile emblem according to an embodiment of the invention.

(17) Also, FIGS. 3A to 16D conceptually illustrate the steps of a method of manufacturing an automobile emblem according to an embodiment of the invention.

(18) Referring to FIG. 1 and FIG. 2, a method of manufacturing an automobile emblem according to an embodiment of the invention can be a method of manufacturing an automobile emblem E that is disposed on the front of an automobile to represent a particular shape R.

(19) The particular shape R may serve as a seal that represents a particular company or organization in a simple manner by means of shapes, characters, or a combination thereof that represent the name, mark, logo, etc., of the company or organization.

(20) An automobile emblem E manufactured by a manufacturing method according to an embodiment of the invention is an object that is formed in a particular shape R and attached to the surface or exterior of a product provided by a manufacturer so as to let consumers know that the product is from said manufacturer.

(21) A method of manufacturing an automobile emblem according to an embodiment of the invention can be implemented by sequentially performing a first step S1 through an eleventh step S11.

(22) A description is provided below of the chronological progression from the first step S1 to the eleventh step S11.

(23) Referring to FIGS. 3A to 3D, the first step S1 can be a step of applying injection molding on a polyester-based resin W1 to provide a first processed object P1.

(24) More specifically, the first step S1 can include step no. 1-1 of applying transfer molding on the polyester-based resin W1 to provide a processed object P1-1 and step no. 1-2 of drying the processed object P1-1.

(25) Step no. 1-1 can be implemented by a first molding cast 10, which may include a first upper cast 11 and a first lower cast 12 that form a first holding space 13 and a first injection space 14 that connects with the first holding space 13.

(26) The polyester-based resin W1 can be injected into the first injection space 14 from the first holding space 13 provided by the first upper cast 11 and the first lower cast 12 and can then undergo transfer molding between the first upper cast 11 and first lower cast 12 and the first injection space 14, which have been heated to preset temperatures.

(27) Here, transfer molding refers to a type of injection molding that involves applying a vacuum pressure at one side of a molding space and applying an injection pressure at the other side of the molding space, so that the molded resin is transported by the pressure into the molding space.

(28) The first upper cast 11 can be maintained at 135 to 145° C., and the first lower cast 12 can be maintained at 75 to 85° C.

(29) Also, the first upper cast 11 and the first lower cast 12 can provide a pressure of 1200 to 1300 kgf/cm.sup.2 and can preferably be pressed together with a pressure of 1200 kgf/cm.sup.2 for implementing the injection molding of the polyester-based resin W1.

(30) Also, the temperature of the first injection space 14 can be maintained at 60 to 70° C., preferably 65° C.

(31) The polyester-based resin W1 can include any one of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate (PC), and polyarylate (PAR).

(32) Step no. 1-1 can further include keeping the processed object P1-1 at a pressure of 900 to 950 kgf/cm.sup.2.

(33) This step of maintaining pressure can be a step of maintaining the filling pressure for a duration of time after the injection filling of the processed object P1-1 molded by the first molding cast 10 and can be for compensating the volume decrease resulting from compression as the processed object P1-1 is cooled.

(34) Step no. 1-2 can be a step of drying the processed object P1-1 for 1 to 2 hours at 115 to 125° C., and step no. 1-2 can provide a processed object P1-2.

(35) Here, the processed object P1-2 can refer to the first processed object P1 described above.

(36) Referring to FIGS. 4A to 4D, the second step S2 can be a step of annealing the first processed object P1 under the condition of a first temperature to provide a second processed object P2.

(37) More specifically, the second step S2 can include step no. 2-1 of annealing the first processed object P1 for 15 to 20 minutes at the first temperature to provide a processed object P2-1 and step no. 2-2 of cooling the processed object P2-1 for 10 minutes at a temperature of 25 to 35° C. to provide a processed object P2-2.

(38) Here, the first temperature can be from 30 to 40° C., preferably 36° C., and the annealing can be performed preferably for 18 minutes.

(39) The annealing refers to a heat treatment of gradually cooling the processed object P1-2 that has been dried at a high temperature in step no. 1-2. Such an annealing heat treatment can be for: firstly, removing any remaining stresses in the processed object; secondly, improving ductility and toughness; and thirdly, forming a specific microstructure.

(40) The processed object P2-2 can refer to the second processed object P2 produced by the second step S2 described above.

(41) Referring to FIGS. 5A and 5B, the third step S3 can be a step of coating the second processed object P2 with a first coating material C1, which may include a UV resin or an epoxy-based resin, to provide a third processed object P3.

(42) The first coating material C1 can have a viscosity of 11 to 13 g/cm.Math.s, preferably 12 g/cm.Math.s.

(43) Also, the spraying device for spraying the first coating material C1 onto a surface of the second processed object P2 can have an ejection pressure of 1.2 to 1.4 bar, preferably 1.3 bar.

(44) The misting pressure of the spraying device can be 1.9 to 2.1 bar, preferably 2.0 bar, and the pattern pressure of the spraying device can be 0.5 to 0.7 bar, preferably 0.6 bar.

(45) Here, the spraying device can be a type of coating robot.

(46) Referring to FIGS. 6A to 6D and FIGS. 7A to 7D, the fourth step S4 can be a step of irradiating UV rays with a first dose such that the first coating material C1 of the third processed object P3 is hardened to provide a fourth processed object P4.

(47) More specifically, the fourth step S4 can include: step no. 4-1 of preheating the third processed object P3 for 3 to 5 minutes at 60 to 80° C. to provide a processed object P4-1, step no. 4-2 of irradiating the UV (ultraviolet) rays with the first dose onto the processed object P4-1 to provide a processed object P4-2, step no. 4-3 of irradiating IR (infrared) rays onto the processed object P4-2 for 5 to 10 minutes at 28 to 32° C. to provide a processed object P4-3, and step no. 4-4 of cooling the processed object P4-3 at 20 to 25° C. to provide a processed object P4-4.

(48) Here, the first dose can be 750 to 850 mJ/cm.sup.2.

(49) Also, the processed object P4-4 can refer to the fourth processed object P4 described above.

(50) Referring to FIGS. 8A and 8B, the fifth step S5 can be a step of sputtering a metal-color paint such that the metal-color paint is deposited on a surface of the fourth processed object P4 to provide a fifth processed object P5.

(51) More specifically, the fifth step S5 can include sputtering the metal-color paint onto a surface of the fourth processed object P4 while maintaining a flow of argon gas at a first flow rate and under a DC power of 2.4 kW.

(52) Here, the first flow rate can be 25 to 27 sccm, preferably 26 sccm.

(53) Also, the duration of depositing the metal-color paint on the surface of the fourth processed object P4 can be 3 seconds.

(54) Referring to FIGS. 9A and 9B, the sixth step S6 can be a step of laser etching one side of the fifth processed object P5 into the particular shape R to provide a sixth processed object P6.

(55) Referring to FIGS. 10A to 10D, the seventh step S7 can be a step of applying black-painting on the sixth processed object P6 with a first paint Q1 to provide a seventh processed object P7.

(56) More specifically, the seventh step S7 can include step no. 7-1 of applying black-painting on a surface of the sixth processed object P6 with the first paint Q1 by way of a spraying device to provide a processed object P7-1 and step no. 7-2 of drying the processed object P7-1 for 25 to 30 minutes at a temperature of 60 to 80° C. to provide a processed object P7-2.

(57) Here, the processed object P7-2 can refer to the seventh processed object P7 described above.

(58) The first paint can have a viscosity of 13 to 15 g/cm.Math.s, preferably 14 g/cm.Math.s.

(59) Also, the spraying device for spraying the first paint Q1 onto a surface of the sixth processed object P6 can have an ejection pressure of 0.8 to 1.0 bar, preferably 1.9 bar.

(60) Also, the misting pressure of the spraying device can be 0.7 to 0.9 bar, preferably 0.8 bar.

(61) Also, the pattern pressure of the spraying device can be 1.3 to 1.5 bar, preferably 1.4 bar.

(62) With the processed object P7-1 coated by the first paint Q1 to a thickness of 20 to 50 μm, a surface of the processed object P7-1 may be coated in a black color to provide shading to the particular shape R of the automobile emblem E, so that the particular shape R can be viewed with a visually more 3-dimensional effect.

(63) Referring to FIGS. 11A to 11D, the eighth step S8 can be a step of applying adhesion-painting on the seventh processed object P7 with a second paint Q2 to provide an eighth processed object P8.

(64) More specifically, the eighth step S8 can include step no. 8-1 of applying adhesion-painting on a surface of the seventh processed object P7 with the second paint Q2 by way of a spraying device to provide a processed object P8-1 and step no. 8-2 of drying the processed object P8-1 for 25 to 30 minutes at 50 to 60° C. to provide a processed object P8-2.

(65) Here, the processed object P8-2 can refer to the eighth processed object P8 described above.

(66) In step no. 8-1, the second paint Q2 can have a viscosity of 14 to 16 g/cm.Math.s, preferably 15 g/cm.Math.s.

(67) Also, the spraying device for spraying the second paint Q2 onto a surface of the seventh processed object P7 can have an ejection pressure of 1.7 to 1.8 bar, preferably 1.75 bar.

(68) The misting pressure of the spraying device can be 1.9 to 2.1 bar, preferably 2.0 bar, and the pattern pressure of the spraying device can be 0.8 to 1.0 bar, preferably 0.9 bar.

(69) The second paint Q2 can be an adhesive paint that improves adhesion between the seventh processed object P7 and the polyvinyl-based resin W2 during the insert molding of the seventh processed object P7 and polyvinyl-based resin W2.

(70) In other words, the adhesive paint can be interposed between the seventh processed object P7 and the polyvinyl-based resin W2 to increase adhesion between the polyvinyl-based resin W2 and the seventh processed object P7.

(71) Referring to FIGS. 12A and 12B and FIGS. 13A to 13D, the ninth step S9 can be a step of applying insert molding on the eighth processed object P8 with a polyvinyl-based resin W2 to provide a ninth processed object P9.

(72) More specifically, the ninth step S9 can include step no. 9-1 of preheating the eighth processed object P8 at a second temperature to provide a processed object P9-1, step no. 9-2 of applying transfer molding on the processed object P9-1 with the polyvinyl-based resin W2 to provide a processed object P9-2, and step no. 9-3 of drying the processed object P9-2 to provide a processed object P9-3.

(73) Step no. 9-1 can be a step of preheating the eighth processed object P8 for 60 to 70 minutes at 60 to 80° C.

(74) Step no. 9-2 can include manufacturing the processed object P9-2 by way of a second molding cast 20, which may include a second upper cast 21 and a second lower cast 22 that form a second holding space 23 and a second injection space 24 that connects with the second holding space 23.

(75) The polyvinyl-based resin W2 can be injected into the second injection space 24 from the second holding space 23 provided by the second upper cast 21 and the second lower cast 22 and can then undergo transfer molding between the second upper cast 21 and second lower cast 22 and the second injection space 24, which have been heated to preset temperatures.

(76) The temperature of the second upper cast 21 can be maintained at 55 to 65° C., and the temperature of the second lower cast 22 can be maintained at 50 to 60° C.

(77) Also, the second upper cast 21 and the second lower cast 22 can provide a pressure of 2900 to 3100 kgf/cm.sup.2 and can preferably be pressed together with a pressure of 3000 kgf/cm.sup.2 for implementing the injection molding of the polyvinyl-based resin W2.

(78) Also, the temperature of the second injection space 24 can be maintained at 50 to 60° C., preferably 55° C.

(79) The polyvinyl-based resin W2 can include any one of polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyvinyl acetate (PVAC), polyvinyl alcohol (PVAL), polyvinyl acetals, polystyrene (PS), AS resins, ABS resins, poly(methyl methacrylate) (PMMA), and fluorine resins.

(80) The processed object P9-2 may be manufactured by transfer molding as the polyvinyl-based resin W2 is transported from the second holding space 23 to the second injection space 24.

(81) Also, step no. 9-2 can further include keeping the processed object P9-2 at a pressure of 500 to 530 kgf/cm.sup.2.

(82) This step of maintaining pressure can be a step of maintaining the filling pressure for a duration of time after the injection filling of the processed object P9-2 molded by the second molding cast 20 and can be for compensating the volume decrease resulting from compression as the processed object P9-2 is cooled.

(83) Step no. 9-3 can be a step of drying the processed object P9-2 for 1 to 2 hours at 85 to 95° C.

(84) The processed object P9-3 obtained at step no. 9-3 can refer to the ninth processed object P9 described above.

(85) Referring to FIGS. 14A and 14B, the tenth step S10 can be a step of coating the ninth processed object P9 with a second coating material C2, which may include a UV resin or an epoxy-based resin, to provide a tenth processed object P10.

(86) The second coating material C2 can have a viscosity of 11 to 13 g/cm.Math.s, preferably 12 g/cm.Math.s.

(87) A spraying device for spraying the second coating material C2 onto a surface of the ninth processed object P9 can have an ejection pressure of 0.8 to 0.9 bar, preferably 0.85 bar.

(88) Also, the misting pressure of the spraying device can be 0.7 to 0.9 bar, preferably 0.8 bar, and the pattern pressure of the spraying device can be 1.7 to 1.9 bar, preferably 1.8 bar.

(89) Referring to FIGS. 15A to 15D and FIGS. 16A to 16D, the eleventh step S11 can be a step of irradiating UV rays with a second dose such that the second coating material C2 of the tenth processed object P10 is hardened to provide the automobile emblem E.

(90) More specifically, the eleventh step S11 can include step no. 11-1 of preheating the tenth processed object P10 for 3 to 5 minutes at 60 to 80° C. to provide a processed object P11-1, step no. 11-2 of irradiating the UV rays with the second dose onto the processed object P11-1 to provide a processed object P11-2, step no. 11-3 of irradiating IR rays onto the processed object P11-2 for 7 to 9 minutes at 55 to 60° C. to provide a processed object P11-3, and step no. 11-4 of cooling the processed object P11-3 at 20 to 25° C. to provide the automobile emblem E.

(91) The second dose can be 2900 to 3100 mJ/cm.sup.2, preferably 3000 mJ/cm.sup.2.

(92) An automobile emblem E according to an embodiment of the invention can be manufactured by the method for manufacturing an automobile emblem described above.

(93) Although the foregoing describes the elements and features of the present invention with reference to an embodiment of the invention, the present invention is not limited to or by the embodiment, and it is apparent to the person skilled in the field of art to which the invention pertains that various modifications or alterations are possible without departing from the spirit and scope of the invention. It should thus be understood that such modifications or alterations fall within the scope of the appended claims.