JP6379396B2 - Manufacturing method of multicolored bar - Google Patents

Description

  The present invention relates to a method for producing a multicolored rod-shaped article.

  Conventionally, as a method for producing a multi-colored bar-shaped cosmetic material, more specifically, as a method for producing a bar-shaped cosmetic material having different colors at the outer peripheral portion and the inner peripheral portion inside the outer peripheral portion, it is described in Patent Document 1 below. The method is known. In this manufacturing method, a molten cosmetic material of one color tone is injected from a nozzle arranged outside the cylinder into a cylinder having an inner dish at the bottom, and then a columnar heating insertion rod is inserted into the cylinder. After forming a color tone of the melted cosmetic into a bottomed cylindrical shape and solidifying the one color of the melted cosmetic, another color of the melted cosmetic is injected from the nozzle, and the outer peripheral part and the inner peripheral part have different color tones. It is to obtain stick-shaped cosmetics.

  Here, a multicolor stick-shaped cosmetic, specifically a two-color pencil, comprising a plurality of cores arranged in different colors in the axial direction, and a shaft cylinder that holds the cores so as to surround them. As described above, when manufacturing a double-ended multicolor stick-shaped cosmetic material in which core materials of different colors are exposed from both ends, the following manufacturing method is generally adopted. That is, referring to FIG. 4, first, the shaft cylinder 13 is arranged so as to stand on the base B, and the molten cosmetic material of one color tone is discharged into the shaft cylinder 13 from the nozzle 14 disposed above the shaft cylinder 13. When the molten cosmetic material of one color tone is solidified, the molten cosmetic material of another color tone is discharged from the nozzle 14 to be filled and solidified, whereby a multi-color bar shape in which different colors are arranged in the axial direction. Cosmetics can be obtained.

JP-A-2-167105

  Here, as the molten cosmetic material of one color cools, it contracts, and as shown in FIG. 4, the surface of the cosmetic material M of one color tone and the so-called sink mark H recessed in the axial direction from the periphery of the shaft center. Produce. After that, in order to fill the surface of the core material of one color tone, which is caused by sink marks H, by discharging molten cosmetic material of another color tone, the other color tone melts in the sink mark H of the core material of one color tone. There is a problem that the cosmetic material enters and is filled, and the boundary portion between the cores of different colors becomes a sink H shape, and the boundary is not beautiful.

  Further, the molten cosmetic material of one color tone discharged from the nozzle 14 scatters in the shaft tube 13 and adheres to the inner surface of the shaft tube 13, and the splattered cosmetic material of one color tone has another color tone to be discharged next time. There is also a problem that a mixed portion of color tone occurs in the core material of the finished product because it adheres to the surface of the molten cosmetic material.

  Therefore, the present invention is a method for producing a multicolored bar-shaped article such as a multicolored bar-shaped cosmetic, wherein the boundary between different-colored cores becomes a beautiful boundary, and a mixed color tone portion is formed on the core. An object of the present invention is to provide a manufacturing method for manufacturing a multi-colored bar which is difficult to be performed.

A method for producing a multicolored rod-like object according to the present invention is formed by solidifying a molten material, and a plurality of core members arranged in different colors in the axial direction and a shaft that holds the plurality of core members so as to surround them. A method of manufacturing a multi-colored rod-shaped article including a tube, and an insertion step of collecting nozzles that discharge molten materials of various colors and inserting the nozzles from above into a space portion of the shaft tube, and the collected nozzles A discharge / filling process in which the molten material of each color tone is sequentially discharged from each nozzle and the space is sequentially filled while the nozzle tip is positioned near the surface of the molten material. The process is characterized by discharging the molten material of the other color and filling the space portion before the sink of the molten material of one color tone discharged and filled in the space portion starts.

  According to such a method for producing a multicolored rod-like object, the nozzles for discharging the molten material of each color tone are collected and inserted into the space of the shaft cylinder from above, and the collected nozzles are pulled up, Molten material of color tone is discharged from each nozzle sequentially and filled into the space of the shaft cylinder, and before the sink of one color of molten material that has been discharged and filled begins, the molten material of another color is discharged. Therefore, the boundary between the cores arranged with different color tones in the axial direction can be made a beautiful boundary. Further, since the molten material is discharged while the nozzle is pulled up in this manner, the nozzle at the time of discharge and the discharged molten material can be brought close to each other, and the molten material can be made difficult to scatter. For this reason, it is difficult to form a mixed color tone portion on the core material. In addition, as described above, since the molten material of the other color is discharged without waiting for the solid material of one color tone to be solidified, the molten material of the other color tone is discharged after waiting for the solidification. Thus, the manufacturing time can be shortened, and a multicolored rod-shaped product can be manufactured efficiently.

  As described above, according to the present invention, the boundary between different color cores becomes a beautiful boundary, and a mixed color tone portion is difficult to be formed in the core, and a method for manufacturing a multicolored bar-like material that can be efficiently manufactured. Can provide.

It is a perspective view which shows the 2 color filling nozzle used for the manufacturing method of the multicolor stick-shaped object which concerns on embodiment of this invention. It is a front view of the two-color filling nozzle shown in FIG. It is explanatory drawing which shows the discharge and filling process using the 2 color filling nozzle shown in FIG.1 and FIG.2. It is explanatory drawing which shows the conventional problem.

  Hereinafter, a preferred embodiment of a method for producing a multicolored bar according to the present invention will be described with reference to FIGS.

  As shown in FIG. 3 (d), the multicolored rod-like product obtained by the manufacturing method of the present invention surrounds the core materials 1 and 2 arranged with different color tones in the axial direction, and the core materials 1 and 2. The shaft cylinder 3 to be held in the case of the two-color bar-shaped cosmetic 10 will be described here. When manufacturing such a two-color bar-shaped cosmetic 10, the two-color filling nozzle 4 shown in FIGS. 1 and 2 is used in this embodiment.

  FIG. 1 shows a perspective view of the two-color filling nozzle 4, and FIG. 2 shows a front view of the two-color filling nozzle.

  As shown in FIGS. 1 and 2, the two-color filling nozzle 4 includes a nozzle 4 a for discharging a molten cosmetic material (molten material) having one color tone, and a molten cosmetic material having another color tone different from the one color tone. And a nozzle 4b for discharging (melting material), and these nozzles 4a and 4b are combined.

  Specifically, the nozzles 4a and 4b are formed in a long shape, and the front half thereof is bundled and held by the holding pipe 4h while being passed through the holding pipe 4h. The tips 4c and 4d of the nozzles 4a and 4b protrude from the holding pipe 4h forward (downward in FIG. 2), respectively, and portions extending from the holding pipe 4h of the nozzles 4a and 4b to the rear (upward in FIG. 2) It is formed in a shape that extends obliquely in directions away from each other so as to form a Y-shape, and then extends straight, and is connected to a large-diameter pipe (not shown).

  Next, a manufacturing method of the two-color bar-shaped cosmetic material 10 using the two-color filling nozzle 4 having such a configuration will be described with reference to FIG. FIG. 3 is an explanatory view showing a discharging / filling process using the two-color filling nozzle shown in FIGS. 1 and 2, wherein (a) is a diagram in which discharge of molten cosmetic material of one color tone is started, (b) ) Is a diagram showing the completed discharge of the molten cosmetic material of one color tone, (c) is a diagram of starting the discharge of the molten cosmetic material of another color tone, and (d) is a discharge of the molten cosmetic material of another color tone. FIG.

  First, an insertion step is performed prior to the discharge / filling step shown in FIG. Specifically, referring to FIG. 3A, the holding pipe 4 h of the two-color filling nozzle 4 is inserted from above into the space in the shaft cylinder 3 arranged upright on the base B. At this time, the nozzle tips 4c and 4d of the two-color filling nozzle 4 are inserted so as to be positioned in the vicinity of the base B.

  Next, the discharging / filling process shown in FIG. 3 is performed. Specifically, first, as shown in FIG. 3A, while the two-color filling nozzle 4 is pulled up, the molten cosmetic material C of one color tone is discharged from the nozzle 4a to fill the space in the shaft tube 3. To go.

  At this time, the two-color filling nozzle 4 is pulled up so that the nozzle tips 4c and 4d are positioned in the vicinity of the surface of the molten cosmetic material C.

  When the two-color filling nozzle 4 is pulled up and a predetermined amount of the molten cosmetic material C having a single color tone is discharged from the nozzle 4a, as shown in FIG. 3B, the molten cosmetic material of one color tone from the nozzle 4a. Finish discharging C. At this time, the nozzle tips 4c and 4d are located in the vicinity of the surface of the melted cosmetic C filled with a predetermined amount.

  Next, as shown in FIG. 3C, while pulling up the two-color filling nozzle 4, the molten cosmetic material D of another color tone is discharged from the nozzle 4 b to fill the space in the shaft cylinder 3.

  Specifically, after the two-color filling nozzle 4 is pulled up and the molten cosmetic material C having one color tone is discharged, the molten cosmetic material D having another color tone may be discharged while the two-color filling nozzle 4 is continuously lifted. Further, the discharge of the melted cosmetic material C of one color is stopped and the pulling up of the two-color filling nozzle 4 is stopped. The molten cosmetic material D may be discharged. In short, the molten cosmetic material D of another color may be discharged before the sink of the molten cosmetic material C of one color previously discharged and filled starts.

  Also at this time, the two-color filling nozzle 4 is pulled up so that the nozzle tips 4c and 4d are positioned in the vicinity of the surface of the molten cosmetic material D.

  When the two-color filling nozzle 4 is pulled up in this manner, a predetermined amount of the molten cosmetic material D of another color tone is discharged from the nozzle 4b and filled to fill the shaft tube 3, as shown in FIG. 3 (d). Then, the discharge of the molten cosmetic material D having another color tone from the nozzle 4b is finished.

  Then, when the molten cosmetics C and D are cooled and solidified, the molten cosmetic C becomes the core material 1 and the molten cosmetic material D becomes the core material 2, and as a result, they are arranged with different colors in the axial direction. A two-color bar-shaped cosmetic material 10 including the core materials 1 and 2 and the shaft tube 3 that holds the core materials 1 and 2 so as to surround them can be obtained.

  Thus, in this embodiment, each nozzle 4a, 4b which discharges the melted cosmetics C, D of each color is collected and inserted into the space portion of the shaft tube 3 from above, and each collected nozzle 4a, While the color 4b is pulled up, the melted cosmetics C and D of each color tone are sequentially ejected from the nozzles 4a and 4b and are sequentially filled into the space of the shaft tube 3, and the melted makeup of one color tone that is ejected and filled first. Before the sink of the material C begins, the melted cosmetic material D of another color tone is discharged and filled, so that the boundary between the core materials 1 and 2 arranged with different color tones in the axial direction is made a beautiful boundary. be able to. Moreover, since the molten cosmetics C and D are discharged while the nozzles 4a and 4b are pulled up in this way, the nozzles 4a and 4b at the time of discharge can be brought close to the discharged molten cosmetics C and D, Molten cosmetics C and D can be made difficult to scatter. For this reason, it is difficult to form a mixed color tone portion on the core material 2. Further, as described above, since the molten cosmetic material D of another color tone is discharged without waiting for the solidification of the molten cosmetic material C of one color tone, the molten material of another color tone is discharged after waiting for the solidification. Compared with technology, the manufacturing time can be shortened, and the two-color bar-shaped cosmetic 10 can be efficiently manufactured.

  As described above, the present invention has been specifically described based on the embodiment. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the two color core materials 1 and 2 are axially arranged. However, the present invention can also be applied to multi-color bar-shaped cosmetics in which cores of three or more colors are arranged in the axial direction. In addition, the present invention can be applied to, for example, multicolored color pencils other than the multicolored bar-shaped cosmetics. In short, the present invention can be applied to multicolored bar-shaped objects. The filling nozzle is also a collection of a plurality of nozzles corresponding to a plurality of core materials.

  DESCRIPTION OF SYMBOLS 1, 2 ... Core material, 3 ... Shaft cylinder, 4 ... Two-color filling nozzle, 4a, 4b ... Nozzle, 4c, 4d ... Nozzle tip, 10 ... Two-color stick-shaped cosmetics (multi-color stick-shaped article), C, D ... Molten cosmetic (molten material).

Claims (1)

A multi-colored rod-shaped object comprising a plurality of core members formed by solidifying a molten material and arranged with different color tones in an axial direction, and a shaft tube that holds the plurality of core members so as to surround them. A manufacturing method comprising:
An insertion step of collecting the nozzles that discharge the molten material of each color tone and inserting the nozzles into the space portion of the shaft tube from above,
A discharge / filling step of sequentially discharging the molten material of each color tone from each nozzle and sequentially filling the space portion while pulling up the collected nozzles so that the nozzle tip is positioned near the surface of the molten material, With
In the discharging / filling step, before the sink of the molten material of one color tone that has been discharged and filled in the space portion starts, the molten material of another color tone is discharged to fill the space portion. A method for producing a featured multicolored bar.

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