Method for manufacturing a container-coupled nozzle tip and a nozzle tip manufactured thereby

Abstract

The present invention relates to a method for manufacturing a container-coupled nozzle tip and a nozzle tip manufactured thereby. Since a coating material made of a polymer synthetic resin is provided as a thin film on a silicone surface, it enables surface printing of the nozzle tip and also provides the effect of preventing deformation by improving the durability of the nozzle tip. A manufacturing method of the present invention for realizing this comprises: a coating fabric preparation step (ST 1) of preparing a coating fabric (10) made of a polymer synthetic resin material to a certain size; a screen printing step (ST 2) of performing a silk screen printing operation on the surface of the prepared coating fabric (10); a drying step (ST 3) of drying the coating fabric (10) on which printing has been performed; a reference hole punching step (ST 4) of punching a reference hole (11) in the coating fabric (10) on which drying has been performed; a silicone dispensing step (ST 5) of dispensing a predetermined amount of silicone (20) onto the coating fabric (10); and a mold insertion step (ST 6) of inserting the coating fabric (10) on which silicone has been dispensed into a molding mold. The method is characterized by including: a press step (ST 7) in which a nozzle tip (100) with an internal hollow hole is formed by pressing a sheet (30) on top of the discharged silicone (20) and then using the upper plate (40) and lower plate (50) of the molding die; and an extraction step (ST 8) in which the nozzle tip (100) formed inside the mold is extracted after raising the upper plate (40) of the mold.

Description

Technology Field

[0001] The present invention relates to a nozzle tip, and more specifically, to a method for manufacturing a container-coupled nozzle tip that enables surface printing of a nozzle tip coupled to the tip of a tubular cosmetic container to control the discharge of contents, and to a nozzle tip manufactured thereby. Background Technology

[0003] In general, cosmetics used for makeup differ significantly in the structure of their storage containers depending on their purpose and ingredients, and furthermore, the method of applying makeup also varies depending on the structure of the container.

[0004] In other words, while there are cosmetic products applied using separate tools such as powder puffs, there are also tube-type cosmetic products equipped to dispense the contents stored in the container through the outlet, making them suitable for application.

[0005] In particular, in the case of tube-type cosmetics, since the cosmetic is in the form of a gel or liquid, the user applies the contents discharged to the outside through the nozzle tip provided at the tip of the tube body by rubbing them directly onto the skin with their hands.

[0006] Meanwhile, the nozzle tip in the conventional technology is made of silicone material, and the discharge hole for discharging the contents forms a hollow structure.

[0007] However, since the surface of the nozzle tip in the conventional technology is made of silicone material, it is easily deformed by external friction, and there was a problem in that it was difficult to print color or patterns on the surface. Prior art literature

[0009] Republic of Korea Patent Registration No. 1981953 (Registered on May 20, 2019) Republic of Korea Patent Registration No. 2222809 (Registered on February 25, 2021) The problem to be solved

[0010] The present invention is proposed to improve upon the problems of the aforementioned prior art, and aims to enhance consumer satisfaction by preventing deformation through improved durability of the nozzle tip used in conjunction with a cosmetic container, while also enabling surface printing. means of solving the problem

[0012] The method for manufacturing a nozzle tip according to the present invention for achieving the above objective comprises: a coating material preparation step of preparing a coating material made of a polymer synthetic resin material to a predetermined size; a screen printing step of performing a silk screen printing operation on the surface of the prepared coating material; a drying step of drying the coating material on which the printing has been performed; a reference hole punching step of punching a reference hole in the coating material on which the drying has been performed; a silicone dispensing step of dispensing a predetermined amount of silicone onto the coating material; a mold insertion step of inserting the coating material on which the silicone has been dispensing into a molding die; a press step of forming a nozzle tip with an internal hollow hole by placing a sheet on top of the dispensing silicone and then applying pressure using the upper and lower plates of the mold; and an extraction step of extracting the nozzle tip formed inside after raising the upper plate of the mold.

[0013] In addition, the sheet material prepared in the above sheet material preparation step is characterized by being made of one of TPU, PE, PET, or PC. Effects of the invention

[0015] The container-coupled nozzle tip of the present invention, by having a thin film of a coating material made of a polymer synthetic resin on the silicone surface, enables printing on the nozzle tip surface and also exhibits the effect of preventing deformation by improving the durability of the nozzle tip.

[0016] In addition, the side locking groove structure provides the advantage of improved container bonding strength. Brief explanation of the drawing

[0018] FIG. 1 is a flowchart of the nozzle tip manufacturing process according to one embodiment of the present invention. FIG. 2 is a diagram of the pre-printing state of the coated fabric during the manufacturing process of the present invention. FIG. 3 is a diagram showing the state in which color printing is performed on a coated fabric during the manufacturing process of the present invention. FIG. 4 is an enlarged view of the reference hole perforation in the coated fabric during the manufacturing process of the present invention. FIG. 5 is a cross-sectional view of the separated state of the press mold in the present invention. FIG. 6 is of a press mold in the present invention FIG. 7 is a cross-sectional view of the press state of the press mold in the present invention. Figure 8 is a cross-sectional structural diagram of the nozzle tip molding state in the present chestnut. FIG. 9 is a cross-sectional structural diagram of a nozzle tip that is cut after molding in the present invention. FIG. 10 is a perspective view of the external appearance of a nozzle tip formed in the present invention. Specific details for implementing the invention

[0019] Hereinafter, specific embodiments of the present invention will be examined in detail with reference to the attached drawings.

[0020] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art.

[0021] Accordingly, the shapes of components depicted in the drawings may be exaggerated to emphasize clearer explanations. It should be noted that identical components in each drawing may be illustrated with the same reference numeral. Furthermore, detailed descriptions of functions and configurations of known technology that are deemed to unnecessarily obscure the essence of the invention may be omitted.

[0022] First, the manufacturing process of a container-coupled nozzle tip according to one embodiment of the present invention is as follows, as illustrated in FIGS. 1 to 8.

[0023] <Coated Fabric Preparation Stage> (ST 1)

[0024] In the fabric preparation stage, a coated fabric (10) made of a polymer synthetic resin material is prepared in a certain size as shown in Fig. 2.

[0025] That is, at this time, a coated fabric (10) made of any one of TPU, PE, PET, or PC is used.

[0026] <Screen Printing Step>(ST 2)

[0027] Afterwards, a silk screen printing operation is performed on the surface of the prepared coating fabric (10).

[0028] That is, in this case, when the coated fabric (10) is made of TPU material, a high-viscosity tint ink that can improve three-dimensionality and durability is printed, and then a silicone binder printing process is performed.

[0029] In this embodiment, a known tint ink was used, which has a mixed composition of carbon black, dimethyl succinate, methyl glutaric acid, dimethyl lipid, polyester resin, ethyl beta-ethoxypropionic acid, and barium sulfate. This ink is a two-component type thermosetting ink and has the characteristic of strong adhesion to the material.

[0030] Meanwhile, when the coated fabric (10) is made of PE, PET, or PC material, a conventional silicone binder printing process is performed using ink manufactured using a silicone-based binder (binder), through which a specific color or a specific pattern can be printed on the coated fabric (10) as shown in FIG. 3.

[0031] <Drying Stage>(ST 3)

[0032] Afterwards, the coated fabric (10) on which the above printing has been done is dried by selecting either a hot air drying method or a natural drying method.

[0033] <Standard Hole Drilling Stage>(ST 4)

[0034] Afterwards, a standard hole (11) as shown in Fig. 4 is drilled in the coated fabric (10) that has been dried as described above.

[0035] <Silicone Dispensing Step> (ST 5)

[0036] Afterwards, a certain amount of silicone (20) is dispensed onto the coating fabric (10).

[0037] The silicone used in this embodiment is an addition-curing two-component silicone rubber, which is an injection-moldable silicone gel type and exhibits characteristics of low hardness and excellent flexibility.

[0038] Meanwhile, at this time, the silicone binder adhesive is sprayed simultaneously with the silicone (20) discharge, thereby increasing the adhesive strength between the coating fabric (10) and the silicone (20).

[0039] In addition, the adhesive sprayed at this time may have a mixed composition of additional functional materials to improve functionality. In this case, it is preferable to have a mixed composition in the ratio of silicone binder 30-60 wt%, polyetheretherketone (PEEK) 10-20 wt%, bromate 5-10 wt%, polybutene 5-15 wt%, polybutylene succinate 5-15 wt%, mineral oil 5-10 wt%, cerium oxide 1-10 wt%, potassium 1-5 wt%, and ammonium ferrous sulfate 1-5 wt%.

[0040] Since the silicone binder forming such a mixed composition contains polyetheretherketone components with polymeric properties, heat resistance can be improved; the bromate acts as an adhesive catalyst for the silicone binder, thereby improving adhesive quality; the polybutylene succinate and mineral oil can improve the dispersibility and fluidity of the binder during the spraying process; and the polybutene performs the function of increasing the viscosity of the composition. In addition, the added cerium oxide and potassium exhibit an advanced effect of preventing deterioration and discoloration of the coating fabric (10).

[0041] <Mold Insertion Step> (ST 6)

[0042] Afterwards, the process of inserting the coating fabric (10) on which the above silicone has been ejected into a molding die is carried out.

[0043] As can be seen in FIG. 5, the molding die at this time has the structure of a conventional molding die in which a middle plate (60) is provided between the upper plate (40) and the lower plate (50), and as can be seen in FIG. 6, a molding groove (51) in the shape of a nozzle tip is formed in a protrusion that protrudes upward to a certain height in the center of the lower plate (50).

[0044] <Press Stage>(ST 7)

[0045] Afterwards, a sheet (30) made of one of TPU, PE, PST, or PC is placed on top of the discharged silicone (20) to form a certain thickness, and then the nozzle tip (100) with an internal hollow hole is formed by applying pressure as shown in FIG. 7 using the upper plate (40) and lower plate (50) of the molding die.

[0046] That is, at this time, the silicone (20) is introduced into the molding groove (51) together with the thin film coating material (10) by the downward pressure of the mold top plate (40), and molding is performed along the shape of the molding groove (51), and the sheet (30) having a certain thickness is pressed by the middle plate (60) together with the coating material (10).

[0047] This shows the advantage that the vacuum state of the molding space can be maintained by the pressure of the middle plate (60), thereby improving the molding quality.

[0048] <Extraction Step>(ST 8)

[0049] Afterwards, the mold top plate (40) is raised, and the nozzle tip (100) formed inside the mold is extracted.

[0050] FIG. 8 is a cross-sectional view showing the molded state of a nozzle tip (100). After extraction, a cutting operation is performed to match the shape of the product, thereby producing a nozzle tip (100) product with a cross-sectional shape as shown in FIG. 9. As shown in FIG. 10, the nozzle tip (100) of the present invention has a catch groove (120) formed on its outer surface, so that when it is coupled to the discharge side of a cosmetic container for use, the container coupling force is increased and the phenomenon of detachment is prevented.

[0051] In addition, it can be seen that leakage and deformation of the silicone (20) can be prevented due to the coating fabric (10) provided as a coating on the surface of the silicone (20), and that the appearance of the product can be differentiated because silk screen printing is performed on the surface of the coating fabric (10).

[0052] Accordingly, the container-coupled nozzle tip of the present invention enables surface printing of the nozzle tip by providing a thin film of a coating fabric made of a polymer synthetic resin material on the surface of the silicone, which is the internal filler, and also exhibits the effect of preventing deformation by improving the durability of the nozzle tip.

[0053] In addition, the side locking groove structure provides the advantage of improved container bonding strength.

[0055] Furthermore, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the nozzle tip manufacturing process of the present invention can be implemented with various modifications by those skilled in the art.

[0056] For example, in the above embodiment, a form in which a single nozzle tip is molded and manufactured by a molding die has been described and illustrated; however, if necessary, a plurality of molding grooves may be formed in the lower plate of the mold so that a plurality of nozzle tips can be molded simultaneously.

[0057] Therefore, such modified embodiments should not be understood separately from the technical spirit or scope of the present invention, and such modified embodiments should be considered to be included within the appended claims of the present invention. Explanation of the symbols

[0059] 10 : Coated fabric 11 : Reference hole 20 : Silicone 30 : Sheet 40 : Mold top plate 50 : Mold bottom plate 51 : Molding groove 60 : Middle plate 100 : Nozzle tip 110 : Hollow hole 120 : Locking groove

Claims

Claim 1 A coating fabric preparation step (ST 1) for preparing a coating fabric (10) made of a polymer synthetic resin material to a certain size; a screen printing step (ST 2) for performing a silk screen printing operation on the surface of the prepared coating fabric (10); a drying step (ST 3) for drying the coating fabric (10) on which printing has been performed; a reference hole punching step (ST 4) for punching a reference hole (11) in the coated fabric (10) on which drying has been performed; a silicone dispensing step (ST 5) for dispensing a certain amount of silicone (20) onto the coating fabric (10); a mold insertion step (ST 6) for inserting the coating fabric (10) on which silicone has been dispensed into a molding mold; and a sheet (30) placed on top of the dispensed silicone (20), then inserted between the upper plate (40) and the lower plate (50) of the molding mold and pressed, so that an internal hollow hole (110) is formed by the molding groove formed in the lower plate (50). A method for manufacturing a container-coupled nozzle tip, characterized by including: a press step (ST 7) in which the nozzle tip (100) is formed; and an extraction step (ST 8) in which the nozzle tip (100) formed inside the mold is extracted after the mold top plate (40) is raised. Claim 2 A method for manufacturing a container-coupled nozzle tip according to claim 1, characterized in that the coating material prepared in the coating material preparation step (ST 1) is made of one of TPU, PE, PET, and PC. Claim 3 A method for manufacturing a container-coupled nozzle tip according to claim 1, characterized in that in the silk screen printing step (ST 2), tint ink is printed on a coated fabric made of TPU material, and then a silicone binder printing operation is performed. Claim 4 A method for manufacturing a container-coupled nozzle tip according to claim 1, characterized in that in the silicone dispensing step (ST 5), an adhesive containing a silicone binder is sprayed. Claim 5 A method for manufacturing a container-bonded nozzle tip according to claim 1, wherein in the press step (ST 7), a coating fabric (10) is coated on the surface of the silicone (20), and a locking groove (120) for improving container bonding strength is formed on the outer surface of the nozzle tip (100), and a vacuum state of the molding space is maintained by applying pressure to the coating fabric (10) and the sheet (30) by a middle plate (60) provided between the upper plate (40) and the lower plate (50). Claim 6 A container-coupled nozzle tip characterized by being manufactured by the manufacturing method of any one of claims 1 to 5 and used by being coupled to the discharge portion of a cosmetic container.

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