Production method and cosmetic

Abstract

To suppress generation of a mixed color in a production process of stick-shaped cosmetic including a plurality of materials.SOLUTION: A production method of the present invention is a production method of stick-shaped cosmetic including a first material and a second material. The production method includes the steps of: loading the first material to a central region and adjacent regions being a plurality of regions adjacent in an outer periphery of the central region and separated from each other in a circumferential direction of a virtual center line; moving a discharge body provided with a discharge port of the second material to a space between the adjacent regions in the circumferential direction and arranging the discharge port at a position lower than an upper end of the loaded first material; and moving at least one of the first material and the discharge body and loading the second material while moving the discharge port of the discharge body toward an upper end side.SELECTED DRAWING: Figure 6-1

Description

Technical Field

[0001] The present invention relates to a manufacturing method and a cosmetic.

Background Art

[0002] Patent Document 1 describes a stick-shaped oily solid cosmetic having a transparent outer layer portion and a colored inner layer portion that are in contact with each other, and provides a stick-shaped oily solid cosmetic in which the boundary surface is clear, the usability is excellent, and the aesthetic property is excellent.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when manufacturing a stick-shaped cosmetic including a plurality of materials, for example, a process of filling each material in order may be employed. In such a filling process, color mixing may occur due to the mixing of the already filled material and the newly filled material.

[0005] Therefore, an object of the present invention is to suppress the occurrence of color mixing in the manufacturing process of a stick-shaped cosmetic including a plurality of materials.

Means for Solving the Problems

[0006] For this purpose, the technology disclosed in this specification is a method for manufacturing a stick-shaped cosmetic comprising a first material and a second material. The method includes steps of filling a central region, which is a region along the virtual center line of the cosmetic, and adjacent regions, which are a plurality of regions adjacent to the central region on the outer periphery of the central region and spaced apart from each other in the circumferential direction of the virtual center line, with the first material; disposing a discharge body provided with a discharge port of the second material between the adjacent regions in the circumferential direction of the virtual center line at a position lower than the upper end of the filled first material; and filling the second material while moving at least one of the first material and the discharge body to direct the discharge port of the discharge body toward the upper end side. Also, it is preferable that at least three or more adjacent regions are formed along the circumferential direction of the virtual center line. Also, it is preferable that the outer diameter of the discharge body is 5 mm or less. Also, it is preferable that the filling temperatures of the first material and the second material are 70°C to 150°C. Also, the discharge body is covered by a covering body on the outer periphery, and is provided movably below the covering body. The covering body is heated to 70°C to 200°C, and the discharge body is moved from the covering body to a position below the covering body to dispose the discharge port at the position. Also, it is preferable that the maximum length of the cosmetic in the direction of the virtual center line is 10 mm to 100 mm, and the maximum length in the orthogonal direction perpendicular to the center line is 5 mm to 50 mm. Also, it is preferable that the distance from the virtual center line of the cosmetic to the second material is a length of 0.5% to 35% of the outer diameter of the cosmetic. Also, it is preferable that the first material and the second material contain an oil gelling agent and silicone oil. Also, it is preferable that the filling temperature of the second material is equal to or lower than the filling temperature of the first material. Also, the first material is discharged from another discharge port of another discharge body, and the outer dimension of the discharge body in the direction intersecting the longitudinal direction of the discharge body is preferably smaller than the outer dimension of the other discharge body in the direction intersecting the longitudinal direction of the other discharge body.

[0007] Viewed from yet another perspective, the technology disclosed in this specification is a method for manufacturing a cosmetic having a stick-shaped cosmetic comprising a first material and a second material, the method including: filling a central region, which is a region along the virtual center line of the cosmetic, and adjacent regions, which are a plurality of regions adjacent to the central region at the outer periphery of the central region and spaced apart from each other in the circumferential direction of the virtual center line, with the first material; disposing a discharge body provided with a discharge port of the second material between the adjacent regions in the circumferential direction of the virtual center line at a position lower than the upper end of the filled first material; filling the second material while moving at least one of the first material and the discharge body so that the discharge port of the discharge body faces the upper end side; and inserting the stick-shaped cosmetic comprising the first material and the second material into a container.

Advantages of the Invention

[0008] According to the present invention, it is possible to suppress the occurrence of color mixing in the manufacturing process of a stick-shaped cosmetic comprising a plurality of materials.

Brief Description of the Drawings

[0009]

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6-1

Fig. 6-2

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Embodiments for Carrying Out the Invention

[0010] Hereinafter, with reference to the accompanying drawings, other embodiments of the present invention will be described. <Cosmetic 1> FIG. 1 is an overall configuration diagram of Cosmetic 1 manufactured in the present embodiment. First, with reference to FIG. 1, the overall configuration of Cosmetic 1 manufactured in the present embodiment will be described.

[0011] Cosmetic 1 includes a cosmetic material body 10, a cylindrical container body 11 that houses the cosmetic material body 10, a container lid 15 that covers the container body 11, and a feeding mechanism 17 provided in the container body 11 for feeding out the cosmetic material body 10. Cosmetic 1 uses the cosmetic material body 10 fed out from the tip of the container body 11 by the feeding mechanism 17 for makeup.

[0012] <Cosmetic material body 10> FIG. 2 is a schematic configuration diagram of the cosmetic material body 10. FIG. 3 is a detailed configuration diagram of the first cosmetic material 110 and the second cosmetic material 130. Next, with reference to FIGS. 2 and 3, the configuration of the cosmetic material body 10 will be described.

[0013] As shown in FIG. 2, the cosmetic material body 10 is a cosmetic material having a substantially cylindrical shape, that is, a stick-shaped cosmetic material. This cosmetic material body 10 is a lipstick formed by combining a plurality of stick-shaped cosmetic materials of different colors. More specifically, the cosmetic material body 10 has a first cosmetic material 110 of a first color and a second cosmetic material 130 of a second color different from the first color. And the first cosmetic material 110 and the second cosmetic material 130 are in a state of being fixed to each other.

[0014] The first cosmetic 110 and the second cosmetic 130 are oil-based cosmetics. Here, the oil-based cosmetic is a cosmetic in which the oil phase of an oily component such as an oil agent or an oil-soluble compound is the continuous phase. This oil-based cosmetic is a cosmetic that substantially does not contain water or, if it contains water, contains 1% by mass or less. There are no particular restrictions on the compounding components of the first cosmetic 110 and the second cosmetic 130, but in terms of physical properties, fluidity during filling and solidification after filling or an increase in the apparent viscosity of non-Newtonian fluidity are required. The first cosmetic 110 and the second cosmetic 130 in the following description are assumed to melt at a high temperature to become a liquid phase and become a solid phase due to a temperature drop.

[0015] For example, the first cosmetic 110 and the second cosmetic 130 contain an oil gelling agent and a silicone oil.

[0016] Note that the fact that the first cosmetic 110 and the second cosmetic 130 are different colors from each other includes (or alternatively), in addition to being different colors as constituent components of the cosmetic, a difference to such an extent that they are visually perceived as different, such as a sense of transparency.

[0017] In the following description, the direction along the central axis CL of the cosmetic body 10 may be simply referred to as the axial direction. The tip side (the upper side in FIG. 2(A)) of the cosmetic body 10 in this axial direction may be simply referred to as the tip side, and the base side of the cosmetic body 10 may be simply referred to as the base side (the lower side in FIG. 2(A)). Also, the circumferential direction centered on the central axis CL may be simply referred to as the circumferential direction. Also, the diameter direction of the central axis CL may be simply referred to as the radial direction.

[0018] Here, with reference to FIG. 3(A), the shape of the first cosmetic 110 will be described in detail. The first cosmetic 110 has a stick shape with a plurality of notches along the axial direction provided on the outer peripheral surface. More specifically, the first cosmetic 110 has a first groove 112, a second groove 114, and a third groove 116 formed at predetermined intervals in the circumferential direction. Although details will be described later, the cosmetic body 10 is formed by filling the first groove 112, the second groove 114, and the third groove 116 of the first cosmetic 110 with the liquid-phase second cosmetic 130.

[0019] The first cosmetic 110 has a first outer peripheral portion 111, a second outer peripheral portion 113, a third outer peripheral portion 115, and a central portion 117. The first outer peripheral portion 111, the second outer peripheral portion 113, and the third outer peripheral portion 115 are stick-shaped portions each having a substantially fan-shaped cross section. Note that the cross-sectional shapes of the first outer peripheral portion 111, the second outer peripheral portion 113, and the third outer peripheral portion 115 shown in the figure can be regarded as substantially triangular. Also, the central portion 117 is a stick-shaped portion having a substantially circular cross section formed along the axial direction.

[0020] Here, the central portion 117 connects the first outer peripheral portion 111, the second outer peripheral portion 113, and the third outer peripheral portion 115 to each other. Thereby, the strength of the first cosmetic 110 is ensured. Note that, as shown in FIG. 3(A-2), the cross-sectional shape of the first cosmetic 110 can be regarded as a radial pattern.

[0021] Here, as shown in FIGS. 3(A-1) and (A-2), the first outer peripheral portion 111 has a first tip portion 121 formed on the axial tip side and a first base portion 122 formed on the axial base side and having a width in the circumferential direction larger than that of the first tip portion 121. Similarly, the second outer peripheral portion 113 has a second tip portion 123 and a second base portion 124. Also, the third outer peripheral portion 115 has a third tip portion 125 and a third base portion 126.

[0022] Next, while referring to FIG. 3(B), the shape of the second cosmetic 130 will be described. The second cosmetic 130 has a plurality (three in the illustrated example) of independent components each consisting of a first component 131, a second component 132, and a third component 133. The first component 131 to the third component 133 are stick-shaped portions each having a substantially fan-shaped cross section.

[0023] Also, the first component 131 to the third component 133 of the second cosmetic 130 have a first end portion 141, a second end portion 142, and a third end portion 143 which are end portions on the central axis CL side. The first end portion 141 to the third end portion 143 are the portions closest to the central axis CL in the first component 131, the second component 132, and the third component 133.

[0024] The first end portion 141 to the third end portion 143 are not so-called corner portions but are formed by a curved surface. As a result, the filling of the liquid-phase second cosmetic 130 is surely made up to the bottoms (first bottom 212, second bottom 214, third bottom 216) of the first groove 112, the second groove 114, and the third groove 116 which are the spaces sandwiched by each of the first component 131 to the third component 133. Additionally, since the first end portion 141 to the third end portion 143 are formed by a curved surface, the adhesive force between the first cosmetic 110 and each of the first component 131, the second component 132, and the third component 133 increases.

[0025] Next, while referring to FIG. 2 again, the positional relationship between the first cosmetic 110 and the second cosmetic 130 will be described. First, the first component 131 to the third component 133 of the second cosmetic 130 are provided sandwiched between the first outer peripheral portions 111 to the third outer peripheral portions 115 in the circumferential direction. Also, the first component 131 to the third component 133 of the second cosmetic 130 are covered by the first base portions 122, the second base portions 124, and the third base portions 126 of the first cosmetic 110 on the outer side in the radial direction of each. As a result, it is suppressed that each of the first component 131 to the third component 133 comes off from the first cosmetic 110. Further, when the user of the cosmetic 1 applies makeup, etc., it is suppressed that the first cosmetic 110 and the second cosmetic 130 break when receiving an external force.

[0026] Here, the outer diameter of the first cosmetic 110 is 5 mm to 50 mm, more preferably 7 mm to 20 mm. If the outer diameter of the first cosmetic 110 is smaller than the above range, the first cosmetic 110 is likely to break. If it is larger than the above range, it becomes difficult for the user of the cosmetic 1 to handle when applying makeup. Also, the distance R from the central axis CL to the first end portion 141 is a length of 0.5% to 35% of the outer diameter of the first cosmetic 110. In other words, the outer diameter of the central portion 117 (a length twice the distance R from the central axis CL to the first end portion 141) is 1% to 70% of the outer diameter of the first cosmetic 110. If the outer diameter of the central portion 117 is smaller than the above range, the strength of the first cosmetic 110 becomes insufficient. If it is larger than the above range, the aesthetic appearance is inferior.

[0027] Also, the axial length L10 of the first cosmetic 110, the first component part 131 to the third component part 133 is 10 mm to 100 mm, more preferably 20 mm to 70 mm. If the axial length L10 is smaller than the above range, it becomes difficult for the user of the cosmetic 1 to handle when applying makeup. If it is larger than the above range, the cosmetic body 10 is likely to break.

[0028] Also, the length L20 of the portion where the first component part 131 to the third component part 133 contact the first tip portions 121 to 125 of the first cosmetics 110 adjacent in the circumferential direction is 2 mm to 100 mm, more preferably 3 mm to 50 mm. If the length L20 is smaller than the above range, the adhesion strength with the first cosmetic 110 becomes insufficient. If it is larger than the above range, the layout limitations when designing the cosmetic body 10 become greater.

[0029] <Molding die 50> FIG. 4 is a schematic configuration diagram of the molding die 50. To explain further, FIG. 4 is an exploded perspective view of the molding die 50. Next, with reference to FIG. 4, the configuration of the molding die 50 for forming the cosmetic body 10 will be described.

[0030] As shown in FIG. 4, the forming mold 50 includes a frame body 51, a first insertion body 61, and a second insertion body 71. These frame body 51, first insertion body 61, and second insertion body 71 are made of a metal material such as stainless steel, for example.

[0031] In the illustrated forming mold 50, the material of the cosmetic body 10 is filled into the internal space (refer to the gap CA shown in FIG. 6-1(A) described later) formed by combining the frame body 51 with either the first insertion body 61 or the second insertion body 71, thereby forming the cosmetic body 10. More specifically, by combining the frame body 51 and the first insertion body 61 and filling the liquid-phase first cosmetic 110 therein, a stick-shaped first cosmetic 110 is formed. Also, by combining the frame body 51 and the second insertion body 71 and filling the liquid-phase second cosmetic 130 therein, a stick-shaped second cosmetic 130 is formed.

[0032] Although not shown in the drawings, the relative positions of the frame body 51, the first insertion body 61, and the second insertion body 71 are prevented from shifting by a well-known positioning mechanism such as inserting positioning pins formed on each into positioning holes.

[0033] Also, the cosmetic body 10 is formed upside down inside the forming mold 50. More specifically, in the state where the frame body 51 and the first insertion body 61 are combined, the first insertion body 61 side (the lower side in the vertical direction in FIG. 4) becomes the tip side of the first cosmetic 110 formed inside the frame body 51 and the first insertion body 61. Also, in the state where the frame body 51 and the second insertion body 71 are combined, the second insertion body 71 side (the lower side in the vertical direction in FIG. 4) becomes the tip side of the second cosmetic 130 formed inside the frame body 51 and the second insertion body 71.

[0034] Hereinafter, the respective configurations of the frame body 51, the first insertion body 61, and the second insertion body 71 will be described in order. First, the frame body 51 will be described. The frame body 51 has a first frame body 53, a second frame body 55, and a third frame body 57, each formed as a separate body.

[0035] The first frame body 53 is a member in a substantially flat plate shape. The first frame body 53 has a first through hole 530 at the center of the plate surface. Further, the first frame body 53 has a recess 533 at the center of the plate surface on the base side surface 532. To further explain, the first through hole 530 is formed at the center of the recess 533.

[0036] The second frame body 55 is a member in a substantially rectangular parallelepiped shape. The second frame body 55 has a second through hole 550 at the center of the plate surface on the base side surface 552 which is the plate surface facing the base side. The second through hole 550 has a first diameter-expanded region 551, a second notch region 553, and a third notch region 555 which are portions each spreading outward in the radial direction.

[0037] The third frame body 57 is a member in a substantially flat plate shape. The third frame body 57 has a first insertion hole 571, a second insertion hole 573, and a third insertion hole 575 on the central side of the plate surface. These first insertion hole 571, second insertion hole 573, and third insertion hole 575 are formed side by side at a predetermined interval in the circumferential direction. Further, between each of the first insertion hole 571, second insertion hole 573, and third insertion hole 575 on the base side surface 572, there are a first recess 581, a second recess 583, and a third recess 585.

[0038] Next, the first insert body 61 will be described. The first insert body 61 has a first substrate 610, a first collar 611, a second collar 613, and a third collar 615. The first substrate 610 is a member in a substantially flat plate shape. Further, on the first substrate 610, the first collar 611, the second collar 613, and the third collar 615 are formed in a direction protruding from the central side of the plate surface on the base side surface 612 which is the plate surface facing the base side, toward the base side.

[0039] The first color 611 is a columnar member. The first color 611 has a first base portion 621 located on the side of the first substrate 610 and a first other end portion 622 on the side opposite to the first substrate 610. The cross-section of the first base portion 621 is substantially triangular. Also, the cross-section of the first other end portion 622 is substantially fan-shaped. Note that the cross-sectional area of the first other end portion 622 is smaller than that of the first base portion 621. Similarly, the second color 613 has a second base portion 623 and a second other end portion 624. Also, the third color 615 has a third base portion 625 and a third other end portion 626.

[0040] Here, in the state where the frame body 51 and the first insert body 61 are combined, the first color 611 is inserted into the first insertion hole 571 of the third frame body 57, the first enlarged diameter region 551 of the second frame body 55, and the first through hole 530 of the first frame body 53. To explain further, the first base portion 621 of the first color 611 is inserted into the first insertion hole 571 of the third frame body 57 and the first enlarged diameter region 551 of the second frame body 55. Also, the first other end portion 622 of the first color 611 is inserted into the first through hole 530 of the first frame body 53.

[0041] Similarly, the second color 613 is inserted into the second insertion hole 573 of the third frame body 57, the second notch region 553 of the second frame body 55, and the first through hole 530 of the frame body 51. Also, the third color 615 is inserted into the third insertion hole 575 of the third frame body 57, the third notch region 555 of the second frame body 55, and the first through hole 530 of the frame body 51.

[0042] In this way, in the state where the frame body 51 and the first insert body 61 are combined, the first cosmetic 110 is formed among the first color 611, the second color 613, and the third color 615.

[0043] To explain further, in a state where the frame body 51 and the first insert body 61 are combined, the first collar 611, the second collar 613, and the third collar 615 are formed so as to be spaced apart from each other on the central axis CL side. As a result, a central space 619 is formed on the central axis CL side and is sandwiched between the first collar 611, the second collar 613, and the third collar 615. The central portion 117 of the first cosmetic 110 is formed in this central space 619.

[0044] Next, the second insert body 71 will be described. The second insert body 71 includes a second substrate 710, a first collar 711, a second collar 713, and a third collar 715. The second substrate 710 is a substantially flat plate-like member. Further, on the second substrate 710, the first collar 711, the second collar 713, and the third collar 715 are formed so as to project toward the root side from the center side of the plate surface on the root side surface 612 that faces the root side.

[0045] The first collar 711 is a columnar member having a substantially triangular cross section. The first collar 711 has a notch 712 having a substantially sector-shaped cross section on the side opposite to the second substrate 710 and on the central axis CL side. As a result, the first collar 711 has a first base portion 721 located on the second substrate 710 side and a first outer portion 722 located on the side opposite to the second substrate 710 side and on the radially outer side. Here, a first recess 731 is formed on the surface of the first base portion 721 that faces the side opposite to the second substrate 710.

[0046] Similarly, the second collar 713 has a notch 714, a second base portion 723, and a second outer portion 724. Further, a second recess 733 is formed on the surface of the second base portion 723 that faces the side opposite to the second substrate 710. The third collar 715 has a notch 716, a third base portion 725, and a third outer portion 726. Further, a third recess 735 is formed on the surface of the third base portion 725 that faces the side opposite to the second substrate 710.

[0047] Here, in a state where the frame body 51 and the second insert body 71 are combined, the first collar 711 is inserted into the first insertion hole 571 of the third frame body 57, the first enlarged diameter region 551 of the second frame body 55, and the first through hole 530 of the first frame body 53. To explain further, the first base portion 721 of the first collar 711 is inserted into the first insertion hole 571 of the third frame body 57. Also, the first outer portion 722 of the first collar 711 is inserted into the first enlarged diameter region 551 of the second frame body 55 and the first through hole 530 of the first frame body 53.

[0048] Similarly, the second collar 713 is inserted into the second insertion hole 573 of the third frame body 57, the second notch region 553 of the second frame body 55, and the first through hole 530 of the frame body 51. Also, the third collar 715 is inserted into the third insertion hole 575 of the third frame body 57, the third notch region 555 of the second frame body 55, and the first through hole 530 of the frame body 51.

[0049] In this way, in a state where the frame body 51 and the second insert body 71 are combined, the first collar 711, the second collar 713, and the third collar 715 form the second cosmetic 130. To explain further, the first collar 711 defines the shape on the outer side in the radial direction and on the side of the second substrate 710 of the first component 131. Similarly, the second collar 713 forms the second component 132, and the third collar 715 forms the third component 133.

[0050] Here, as described above, the first recess 581, the second recess 583, and the third recess 585 are formed in the third frame body 57. By these recesses supporting the first cosmetic 110, the tips of the first outer peripheral portion 111, the second outer peripheral portion 113, and the third outer peripheral portion 115 of the first cosmetic 110 are formed in a convex shape. Due to this convex shape, when the first cosmetic 110 is taken out from the mold 50, the first cosmetic 110 is likely to come off when taken out from the mold 50, suppressing the breakage of the first cosmetic 110.

[0051] Further, as described above, the second insert 71 is formed with a first recess 731 to a third recess 735. By these recesses supporting the second cosmetic 130, the tips of the first component 131 to the third component 133 of the second cosmetic 130 are formed in a convex shape. This convex shape makes it easier for the second cosmetic 130 to come off when it is taken out of the forming mold 50, and suppresses the second cosmetic 130 from breaking.

[0052] <Manufacturing apparatus 30> FIG. 5 is a schematic configuration diagram of the manufacturing apparatus 30. Next, the schematic configuration of the manufacturing apparatus 30 will be described with reference to FIG. 5.

[0053] The manufacturing apparatus 30 includes a first supply unit 31 that supplies the first cosmetic 110, a second supply unit 33 that supplies the second cosmetic 130, a drive unit 35 that moves the frame body 51 under the drive from a drive source such as a servo motor, and a control unit 37 that controls each of the above functional components.

[0054] The first supply unit 31 includes a substantially cylindrical first nozzle 311 that discharges the liquid-phase first cosmetic 110, and a first heater 313 that heats the first nozzle 311.

[0055] The second supply unit 33 includes a substantially cylindrical second nozzle 331 that discharges the liquid-phase second cosmetic 130, and a second heater 333 that heats the second nozzle 331.

[0056] Here, the drive unit 35 is described as moving the frame body 51, but it is not limited to this. That is, it is only necessary that the relative position of the frame body 51 with respect to the first nozzle 311 and the relative position of the frame body 51 with respect to the second nozzle 331 can be changed. For example, the drive unit 35 may be configured to move at least one of the first nozzle 311 and the second nozzle 331 together with the movement of the frame body 51 or instead of the movement of the frame body 51.

[0057] <Manufacturing method> FIGS. 6-1 and 6-2 are diagrams for explaining the manufacturing method of the cosmetic body 10. Next, with reference to FIGS. 6-1 and 6-2, the manufacturing method of the cosmetic body 10 will be described.

[0058] The outline of the manufacturing method of the cosmetic body 10 is as follows. First, the liquid-phase first cosmetic 110 is discharged into the forming mold 50 in which the frame body 51 and the first insertion body 61 are combined, and the first cosmetic 110 is solidified. Next, while the first cosmetic 110 is accommodated inside the frame body 51, the first insertion body 61 and the second insertion body 71 are replaced. Then, the liquid-phase second cosmetic 130 is discharged into the forming mold 50, and the second cosmetic 130 is solidified. As a result, the cosmetic body 10 in which the first cosmetic 110 and the second cosmetic 130 are fixed to each other is formed.

[0059] Hereinafter, the manufacturing method of the cosmetic body 10 will be described in detail. First, as shown in FIG. 6-1(A), in the forming mold 50, the frame body 51 and the first insertion body 61 are combined. An air gap CA is formed inside this forming mold 50.

[0060] Next, as shown in FIG. 6-1(B), the first nozzle 311 is arranged outside the upper part of the forming mold 50. Then, the liquid-phase first cosmetic 110 is discharged from the first nozzle 311. The liquid-phase first cosmetic 110 is filled and solidified in the air gap CA of the frame body 51, whereby the first cosmetic 110 is integrally formed in the frame body 51.

[0061] Next, as shown in FIG. 6-1(C), the first insertion body 61 is pulled out from the frame body 51, and the second insertion body 71 is inserted into the frame body 51. At this time, the first cosmetic 110 remains held in the frame body 51. That is, in the illustrated example, the first insertion body 61 and the second insertion body 71 are replaced without taking out the first cosmetic 110 from inside the frame body 51.

[0062] Next, as shown in FIG. 6-1(D), the second nozzle 331 is inserted into the forming mold 50 (see arrow D1 in the figure).

[0063] Next, as shown in FIG. 6-2(E), the second cosmetic 130 in a liquid phase is discharged from the second nozzle 331. At this time, the second nozzle 331 moves outward (upward in the vertical direction) of the mold 50 while discharging the second cosmetic 130 in the liquid phase (see arrow D2 in the figure). Then, as shown in FIG. 6-2(F), when the discharged second cosmetic 130 solidifies, the first component 131 of the second cosmetic 130 is formed within the frame body 51.

[0064] Although detailed description is omitted, similarly to the first component 131, the second nozzle 331 is inserted inside the mold 50, and the second component 132 of the second cosmetic 130 is formed by discharging the second cosmetic 130 in the liquid phase from the second nozzle 331 (see FIG. 6-2(G)).

[0065] Similarly, the second nozzle 331 is inserted inside the mold 50, and the third component 133 is formed by discharging the second cosmetic 130 in the liquid phase from the second nozzle 331 (see FIG. 6-2(H)). In this step, a larger volume of the second cosmetic 130 in the liquid phase is supplied compared to when forming the first component 131 and the second component 132. As a result, a part of the second cosmetic 130 overflows to form a convex portion 136 protruding upward.

[0066] This convex portion 136 covers the upper side (axial direction root side) of the first cosmetic 110 and the second cosmetic 130. This convex portion 136 functions as a covering member (lid) that covers the gap formed between the first cosmetic 110 and the second cosmetic 130. And by forming this convex portion 136, the displacement of the first cosmetic 110 and the second cosmetic 130 is suppressed. Although not shown in the figure, the convex portion 136 is cut off in a predetermined process such as after the cosmetic body 10 is taken out from the frame body 51. That is, through a process of flattening the end portion on the root side of the cosmetic body 10, the cosmetic 1 is manufactured.

[0067] Here, the temperatures of the first cosmetic 110 and the second cosmetic 130 discharged from the first nozzle 311 and the second nozzle 331 will be described. The temperature of the second cosmetic 130 discharged from the second nozzle 331 is lower than the temperature of the first cosmetic 110 discharged from the first nozzle 311. That is, the set temperature of the second heater 333 is lower than the set temperature of the first heater 313. It is preferable that the melting point of the second cosmetic 130 is lower than the melting point of the first cosmetic 110.

[0068] Here, for example, when the temperature of the second cosmetic 130 is higher than the temperature of the first cosmetic 110, in the forming process of the second cosmetic 130, a part of the interface of the already formed first cosmetic 110 may melt. Due to this melting, the boundary surface between the first cosmetic 110 and the second cosmetic 130 becomes unclear, and color mixing may occur. In the present embodiment, by setting the temperature when discharging the second cosmetic 130 to be equal to or lower than the temperature when discharging the first cosmetic 110, color mixing of the first cosmetic 110 and the second cosmetic 130 is suppressed.

[0069] The set temperatures of the first heater 313 and the second heater 333, that is, the filling temperatures of the first cosmetic 110 and the second cosmetic 130 are 70°C to 150°C. More specifically, the filling temperature of the first cosmetic 110 is 80°C to 150°C, and the filling temperature of the second cosmetic 130 is 70°C to 130°C. If the filling temperatures of the first cosmetic 110 and the second cosmetic 130 are lower than the above range, the viscosities of the first cosmetic 110 and the second cosmetic 130 will increase, resulting in insufficient discharge of each. If they are higher than the above range, the first cosmetic 110 and the second cosmetic 130 may deteriorate.

[0070] Next, the dimensions of the second nozzle 331 will be described. The outer diameter of the second nozzle 331 is smaller than the outer diameter of the first nozzle 311. More specifically, the outer diameter of the second nozzle 331 is, for example, from 1 mm to 5 mm. More preferably, it is from 1.5 mm to 3 mm. If the outer diameter of the second nozzle 331 is smaller than the above range, the flow path resistance of the second cosmetic 130 passing through the second nozzle 331 will increase and the discharge will be insufficient. If it is larger than the above range, the second nozzle 331 may come into contact with the first cosmetic 110.

[0071] Note that the cosmetic body 10 formed through the above steps is inserted into the container body 11 shown in FIG. 1 and covered with the container lid 15, whereby the cosmetic 1 is manufactured.

[0072] <Filling Step of the Second Cosmetic 130> FIG. 7 is a diagram for explaining the filling step of the second cosmetic 130. Next, with reference to FIG. 7, the arrangement of the second nozzle 331 in the filling step of the second cosmetic 130 will be described.

[0073] As described above, with the second nozzle 331 inserted inside the frame body 51, the liquid-phase second cosmetic 130 is discharged. Then, the discharge port (opening) 332 of the second nozzle 331 is positioned above the second cosmetic 130, and the second nozzle 331 rises while maintaining the distance from the discharge port 332 to the upper surface 138.

[0074] Here, the position of the second nozzle 331 will be described. First, regarding the position at the start of discharge, the distance L1 from the upper surface 531 of the frame body 51 (the upper end surface of the first cosmetic 110) in the axial direction to the tip of the second nozzle 331, that is, the position of the discharge port 332, is larger than 1 / 2 of the axial length L0 of the second cosmetic 130. That is, the discharge port 332, which is the tip of the second nozzle 331, is inserted to a deep position in the internal space of the frame body 51. This shortens the distance L2 from the discharge port 332 to the upper surface 138.

[0075] Further, for example, unlike the present embodiment, when the discharge port 332 of the second nozzle 331 discharges the liquid-phase second cosmetic 130 while being disposed outside the frame body 51, the discharged liquid-phase second cosmetic 130 may be filled into the frame body 51 while entraining air. The air entrained in the second cosmetic 130 can cause poor strength of the second cosmetic 130 or the like. Therefore, in the present embodiment, the discharge port 332 of the second nozzle 331 is disposed inside the frame body 51 to suppress the second cosmetic 130 from entraining air.

[0076] Further, in the illustrated example, the liquid-phase second cosmetic 130 is discharged while moving the second nozzle 331 upward (see arrow D2 in the figure) as described above. As a result, the distance L2 from the discharge port 332 to the upper surface 138 is shortened, and it is suppressed that the liquid-phase second cosmetic 130 is filled in a state containing air. Further, by shortening the distance L2, it is suppressed that the liquid-phase second cosmetic 130 is cooled in the air after being discharged from the discharge port 332 of the second nozzle 331.

[0077] Further, by aligning the rising speed of the upper surface 138 and the rising speed of the second nozzle 331, it is suppressed that the second nozzle 331 comes into contact with the upper surface 138 and the second nozzle 331 gets dirty. More specifically, by aligning the rising speeds of the upper surface 138 and the second nozzle 331, the distance L2 is maintained at a constant length. As a result, the second cosmetic 130 can be homogenized.

[0078] As described above, in the present embodiment, the first cosmetic 110 occupying the central portion of the cosmetic body 10 and the second cosmetic 130 adjacent to the first cosmetic 110 are filled in two or more steps. Further, for the second cosmetic 130, it is filled from a position lower than the upper surface of the first cosmetic 110. As a result, a cosmetic body 10 having excellent folding strength and suppressed color mixing (the boundary surface between adjacent compositions is clear) is formed. In this cosmetic body 10, a complicated multi-color filling with a radially patterned cross section is realized. Further, in the present embodiment, a cosmetic body 10 having a multi-color characteristic pattern is supplied from the viewpoint of external aesthetic properties and the like.

[0079] <Operation of the Second Heater 333> FIG. 8 is a diagram for explaining the operation of the second heater 333. Next, the operation of the second heater 333 will be described with reference to FIG. 8.

[0080] First, the second heater 333 is provided with a first movable part 335 and a second movable part 337 that sandwich the second nozzle 331 and function as a jacket of the second nozzle 331. These first movable part 335 and second movable part 337 are driven by the drive part 35 and can be separated from and approached to each other. Then, the first movable part 335 and the second movable part 337 heat the second nozzle 331 in a state where they are close to each other with the second nozzle 331 sandwiched therebetween. By heating the second nozzle 331, this second heater 333 suppresses a decrease in the temperature of the liquid-phase second cosmetic 130 supplied through the second nozzle 331.

[0081] Next, the operation of the second heater 333 will be described in detail. First, as shown in FIG. 8(A), before the supply of the liquid-phase second cosmetic 130, the second nozzle 331 is in a state of being heated with the first movable part 335 and the second movable part 337 sandwiching it.

[0082] Next, as shown in FIG. 8(B), when starting the supply of the liquid-phase second cosmetic 130, the first movable part 335 and the second movable part 337 separate (see arrow D11 in the figure). Then, as shown in FIG. 8(C), the second nozzle 331 is inserted into the inside of the frame body 51 (see arrow D1 in the figure).

[0083] Next, as shown in FIG. 8(D), the second nozzle 331 rises (see arrow D2 in the figure) while supplying the liquid-phase second cosmetic 130 and moves to the outside of the frame body 51.

[0084] Next, as shown in FIG. 8(E), the first movable part 335 and the second movable part 337 move in a direction approaching each other (see arrow D12 in the figure). Then, the first movable part 335 and the second movable part 337 sandwich the second nozzle 331 and heat the second nozzle 331.

[0085] In this way, before the start of the descent of the second nozzle 331, it is kept warm by the first movable part 335 and the second movable part 337 which are jackets, and by detaching from the first movable part 335 and the second movable part 337 at the start of the descent, the second nozzle 331 which is small in diameter and easily cooled is kept warm. By keeping the second nozzle 331 warm, the occurrence of clogging of the second cosmetic 130 inside the second nozzle 331 is suppressed. Note that the set temperatures of the first movable part 335 and the second movable part 337 are 70°C to 200°C as described above.

[0086] <Modification example> FIG. 9 is a diagram showing a modification example of the cosmetic body 10. FIG. 10 is a diagram showing a modification example of the frame body 51. Next, a modification example of the present embodiment will be described with reference to FIGS. 9 and 10.

[0087] In the above example, it was described that the first cosmetic 110 and the second cosmetic 130 are of two different colors, but it is not limited to this, and three or more colors may be used. For example, as in the cosmetic 910 shown in FIG. 9, a configuration including a first cosmetic 911 which is the first color, a first component 913 which is the second color, a second component 915 which is the third color, and a third component 917 which is the fourth color may be used.

[0088] Also, in the above example, it was described that the first end portion 141, the second end portion 142, and the third end portion 143 which are the end portions on the central axis CL side are formed by a curved surface, but it is not limited to this. For example, a part or all of the first end portion 141, the second end portion 142, and the third end portion 143 may be in a shape forming a corner. Further explaining, a part or all of the first end portion 141, the second end portion 142, and the third end portion 143 may be configured by an acute angle.

[0089] Also, in the above example, it was explained that the cross-sections of the first outer peripheral portion 111 to the third outer peripheral portion 115 and the first component portion 131 to the third component portion 133 are substantially fan-shaped. Note that these cross-sectional shapes can be regarded as a so-called droplet shape in which the side surface along the radial direction is curved in a direction protruding outward. Also, in the above example, it was explained that three of the first outer peripheral portion 111 to the third outer peripheral portion 115 and the first component portion 913 to the third component portion 917 are formed respectively. However, it is not limited to the configuration described above.

[0090] For example, the side surfaces along the radial direction of part or all of the first outer peripheral portion 111 to the third outer peripheral portion 115 and the first component portion 131 to the third component portion 133 may be formed linearly. In other words, part or all of the first outer peripheral portion 111 to the third outer peripheral portion 115 and the first component portion 131 to the third component portion 133 may be formed in an annular sector shape.

[0091] Also, the number of each of the first outer peripheral portion 111 to the third outer peripheral portion 115 and the first component portion 131 to the third component portion 133 is not limited to three. For example, the number of each may be two, or may be four or more.

[0092] Also, in the above example, it was explained that the central portion 117 has a small diameter, but it is not limited thereto. For example, the central portion 117 may have a large diameter. Further explaining, the radial dimension of the central portion 117 may be larger than that of the first outer peripheral portion 111 to the third outer peripheral portion 115.

[0093] Also, the shapes of the first cosmetic 110 and the second cosmetic 130 are not limited to the shapes described above. As long as the first cosmetic 110 is connected to the first outer peripheral portions 111 to 115 and the like, which are portions formed on the outer periphery via the central portion 117, and the second cosmetic 130 is disposed between the first outer peripheral portions 111 to 115. For example, the first cosmetic 110 may have a windmill shape. Further, to explain in more detail, a shape in which the crescent-shaped first outer peripheral portions 111 to 115 are provided at predetermined intervals on the outer periphery of the central portion 117 may be used. Note that the crescent-shaped first outer peripheral portions 111 to 115 are an example of a shape in which the circumferential width becomes narrower as the distance from the central portion 117 increases. Also, the crescent-shaped first outer peripheral portions 111 to 115 are an example of a shape in which the outer peripheral side ends of the first outer peripheral portions 111 to 115 form corners. Further, to explain in more detail, the crescent-shaped first outer peripheral portions 111 to 115 are an example of a shape in which the outer peripheral side ends of the first outer peripheral portions 111 to 115 form acute angles.

[0094] Also, in the above example, a configuration in which one gap CA is formed in the forming die 50 has been described, but the present invention is not limited to this. For example, as shown in FIG. 10, a configuration in which a plurality of gaps CA are provided in the forming die 700 may be used. Although not shown, a plurality of sets of the first nozzles 311 or a plurality of sets of the second nozzles 331 may be provided. Further, to explain in more detail, for example, a configuration in which the second cosmetic 130 is simultaneously discharged through a plurality of sets of the second nozzles 331 with respect to the plurality of gaps CA may be used.

[0095] Also, the forming die 50 may be maintained at a predetermined set temperature by a forming die heater (not shown) that heats the forming die 50. Note that the first set temperature when forming the first cosmetic 110 and the second set temperature when forming the second cosmetic 130 may be different. For example, by combining the frame body 51 and the second insertion body 71, the second set temperature for forming the second cosmetic 130 may be made lower than the first set temperature for forming the first cosmetic 110 by combining the frame body 51 and the first insertion body 61. Thereby, when forming the second cosmetic 130, the color mixing of the first cosmetic 110 and the second cosmetic 130 can be suppressed.

[0096] In the above example, it has been described that the first nozzle 311 and the second nozzle 331 are substantially cylindrical. However, if the first nozzle 311 and the second nozzle 331 are hollow members, their shapes are not limited to this. For example, the outer shapes of the first nozzle 311 and the second nozzle 331 may be polygonal prisms such as square prisms, elliptical prisms, or the like.

[0097] In the above description, it has been described that the cosmetic 1 is a lipstick, but it is not limited to this. The cosmetic 1 may be any one that includes a stick-shaped cosmetic body 10, and for example, it may be a lip cream, a blusher, an eye color, a concealer, a foundation, or the like.

[0098] In the above, various embodiments and modification examples have been described, but it is of course possible to combine and configure these embodiments and modification examples with each other. Moreover, the present disclosure is not limited to the above-described embodiments at all, and can be implemented in various forms without departing from the gist of the present disclosure.

[0099] The cosmetic body 10 is an example of a cosmetic. The first cosmetic 110 is an example of a first material. The second cosmetic 130 is an example of a second material. The central axis CL is an example of a virtual center line. The first outer peripheral portion 111, the second outer peripheral portion 113, and the third outer peripheral portion 115 are examples of adjacent regions. The central portion 117 is an example of a central region. The second nozzle 331 is an example of a discharge body. The first movable portion 335 and the second movable portion 337 are examples of a covering body.

Explanation of Reference Numerals

[0100] 1... Cosmetic, 10... Cosmetic body, 110... First cosmetic, 130... Second cosmetic, 331... Second nozzle, 332... Discharge port

Claims

1. A method for manufacturing a stick-shaped cosmetic comprising a first material and a second material, a step of filling the first material into a central region which is a region along the virtual center line of the cosmetic, and adjacent regions which are a plurality of regions adjacent to the central region on the outer periphery of the central region and separated from each other in the circumferential direction of the virtual center line; a step of arranging a discharge body provided with a discharge port of the second material between the adjacent regions in the circumferential direction of the virtual center line, and positioning the discharge port at a position lower than the upper end of the filled first material; a step of filling the second material while moving at least one of the first material and the discharge body so that the discharge port of the discharge body faces the upper end side; A manufacturing method including the above steps.

2. The manufacturing method according to claim 1, wherein at least three or more adjacent regions are formed along the circumferential direction of the virtual center line.

3. The manufacturing method according to claim 1, wherein the outer diameter of the discharge body is 5 mm or less.

4. The manufacturing method according to any one of claims 1 to 3, wherein the filling temperature of the first material and the second material is 70°C to 150°C.

5. The discharge body is covered by a covering body on the outer periphery, and is provided movably below the covering body, the covering body is heated to 70°C to 200°C, The manufacturing method according to any one of claims 1 to 3, wherein the discharge body is moved from the covering body to a position below the covering body, and the discharge port is arranged at the position.

6. The manufacturing method according to any one of claims 1 to 3, wherein the maximum length of the cosmetic in the direction of the virtual center line is 10 mm to 100 mm, and the maximum length in the direction orthogonal to the center line is 5 mm to 50 mm.

7. The manufacturing method according to any one of claims 1 to 3, wherein the distance from the virtual center line of the cosmetic to the second material is a length of 0.5% to 35% of the outer diameter of the cosmetic.

8. The manufacturing method according to any one of claims 1 to 3, wherein the first material and the second material contain an oil gelling agent and silicone oil.

9. The manufacturing method according to any one of claims 1 to 3, wherein the filling temperature of the second material is equal to or lower than the filling temperature of the first material.

10. The first material is discharged from another discharge port of another discharge body, The manufacturing method according to any one of claims 1 to 3, wherein the outer dimension of the discharge body in the direction intersecting the longitudinal direction is smaller than the outer dimension of the other discharge body in the direction intersecting the longitudinal direction.

11. A method for manufacturing a cosmetic product having a stick-shaped cosmetic containing a first material and a second material, comprising: filling the first material into a central region, which is a region along the virtual center line of the cosmetic, and adjacent regions, which are a plurality of regions adjacent to the central region on the outer periphery of the central region and spaced apart from each other in the circumferential direction of the virtual center line; placing a discharge body provided with a discharge port of the second material between the adjacent regions in the circumferential direction of the virtual center line at a position lower than the upper end of the filled first material; filling the second material while moving at least one of the first material and the discharge body to direct the discharge port of the discharge body toward the upper end side; inserting the stick-shaped cosmetic containing the first material and the second material into a container; A manufacturing method including the above steps.

Images