JP2006158513A - Cosmetic molding apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic molding apparatus and method where a molding condition can precisely be set and a space is saved. <P>SOLUTION: A Peltier element 22 which can be heated or cooled is arranged on the outer surface of a mold 10 which can be filled with lip stick material. A control part 24 controls a current value to energize the Peltier element 22 and the direction of current to control the temperature of the mold 10 through the Peltier element 22. Thus, the temperature of the mold 10 is controlled easily, and set precisely. Thus, a high-quality lip stick is molded. Moreover, a temperature history on which the crystal structure of the lip stick etc. depends is adjusted flexibly. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cosmetic molding apparatus and a cosmetic molding method for molding cosmetics such as lipstick or eyeliner.

  For stick-shaped cosmetics such as lipsticks and eyeliners, pigments and pearl pigments are kneaded with oil or solid wax, then melted by heating (cosmetic materials), and poured into a mold for molding cosmetics. Then, after cooling the mold and solidifying the cosmetic material, the solidified cosmetic material is released from the mold (for example, Patent Document 1).

  In this way, the molding method using a mold is easy to process even for products with complicated shapes and is excellent in mass productivity, so various products are manufactured, but molded products such as lipsticks and eyeliners are Since oil and solid wax are the main components and are intended to be applied to the skin of the human body, the solidification temperature is lower than that of plastic molding and the molding is also very soft. Further, the crystal structure of the wax changes depending on the history of temperature change during the cooling process, and the break strength, appearance, and feeling of use are greatly different.

  Molded products such as lipsticks and eyeliners have a narrow range of molding conditions such as cosmetic material temperature, pouring temperature, mold temperature, etc., and it is very difficult to mold stably and with high quality. .

  For example, the molding temperature of lipstick is as follows. That is, when the lipstick of the molding material is in a molten state (hereinafter referred to as lipstick material), the higher the temperature of the lipstick material, the better the fluidity of the material, and conversely, the lower the temperature, the poorer the fluidity.

  However, when the temperature of the lipstick material is too high, when it is poured into the mold, a pattern such as so-called “unevenness” is generated by convection of the lipstick pigment or the pearl material. On the other hand, if the temperature of the lipstick material is too low, the fluidity of the lipstick material is poor, and the lipstick material cannot be sufficiently filled in the back of the mold corresponding to the tip of the lipstick, and the lipstick has a sharp edge line. And can't get a flat part.

  As for the mold temperature, the closer the mold temperature is to the temperature of the lipstick material, the better the fluidity of the lipstick material. Therefore, the lipstick material can be filled to the back of the mold corresponding to the tip of the lipstick. However, if the mold temperature is set high, the time until the lipstick material solidifies in the mold becomes long, and the cooling time for cooling the mold must be lengthened. Conversely, if the mold temperature is set low in order to shorten the cooling time, a flow mark is generated on the surface of the lipstick and the appearance becomes dirty.

  Therefore, conventionally, as an example, as shown in FIG. 5A, after the heater 102 is brought into contact with the surface of the mold 100 and the temperature of the mold 100 is raised, as shown in FIG. The lipstick material is filled into the mold 100 from each nozzle 106 provided in the filling machine 104 containing the lipstick material.

  Next, as shown in FIG. 5C, a metal cooling plate 108 cooled by circulating cold water or refrigerant (for convenience, pipes for flowing cold water and refrigerant are not shown). After the mold 100 is closely adhered to the mold 100 and cooled to solidify the lipstick material, as shown in FIGS. 5D and 5E, the upper mold 100A constituting the mold 100 is removed, Instead of the upper mold 100A, as shown in FIG. 5 (F), a holder 114 in which a lipstick case 112 provided with a lipstick storage cylinder 110 is disposed is attached to the lower mold 100B.

  Then, after removing the holding member 115 holding the lower mold 100B from the lower mold 100B, with the lower mold 100B slightly opened, the holder 114 is lifted upward, as shown in FIG. The molded lipstick 116 is released from the lower mold 100B.

  By the way, molded products such as lipsticks create a desired feeling of use by mixing oil and wax. However, in lipsticks, the crystal structure of the wax component changes depending on the temperature, and depending on the size of the crystals, the surface of the lipstick looks like sweat. There may be a sweating phenomenon in which oil is ejected, or a blooming phenomenon in which only a wax that is difficult to melt is deposited in the oil and the white powder is ejected when the oil returns to the molded product.

  The size of such a crystal becomes smaller when cooled rapidly and becomes larger when cooled slowly. When the crystal is small, the hardness of lipstick and the like is high, but the feeling of use is hard, and when the crystal is large, the hardness is low but the feeling of use is soft.

  The size of the crystal that causes the oil to be easily ejected, such as sweating, varies depending on the compatibility of the oil with the wax and the formulation, and the control of the crystal state can be controlled by how the molded product is cooled. Therefore, in order to secure an appropriate cooling method, the mold 100 may be cooled in stages, and in this case, the mold 100 passes between a plurality of cooling plates 108 having different temperatures (FIG. 5). (See (C)).

However, when the mold temperature is raised using the heater 102 or the mold 100 is cooled using the cooling plate 108, it is difficult to set the mold temperature with high accuracy. Further, in the cooling plate 108, when cooling is performed by circulating cold water or a refrigerant, the facility becomes large, and a space for that is required separately.
Japanese Patent No. 2810323

  In view of the above facts, an object of the present invention is to provide a cosmetic molding apparatus and a cosmetic molding method capable of setting molding conditions with high accuracy and reducing the space.

  According to the first aspect of the present invention, in the cosmetic molding apparatus, a discharge device capable of discharging a melted cosmetic material, and a cosmetic material discharged from the discharge device can be filled, and can be heated or cooled on the outer surface. A cosmetic mold in which a Peltier member is disposed, and a control unit that is connected to the Peltier member and controls the temperature of the cosmetic mold through the Peltier member by controlling a current value and a direction of current to be energized; It is characterized by having.

  In the first aspect of the present invention, a Peltier member that can be heated or cooled is disposed on the outer surface of a cosmetic mold that can be filled with a cosmetic material, and the controller controls the current value and direction of the current that is supplied to the Peltier member. The temperature of the cosmetic mold is controlled through the Peltier member.

  Here, the Peltier member is a member having a Peltier effect. This Peltier effect is a kind of thermoelectric effect in which heat energy and electrical energy are converted to each other. When a current is passed through the contact surface of different conductors, heat is generated or absorbed by the contact surface. When the direction of the current is changed, the heat generation or endotherm is reversed.

  By controlling the temperature of the cosmetic mold with this Peltier member, the temperature of the cosmetic mold can be easily controlled, and the temperature can be set with high accuracy. For this reason, a high-quality product can be molded. Moreover, the temperature history which influences crystal structures, such as a lipstick, can be adjusted flexibly.

  Furthermore, for example, the temperature of the cosmetic mold can be cooled faster than a cooling plate or the like, and the molding cycle can be shortened. Moreover, since the temperature of the cosmetic mold can be cooled stepwise, the sweating phenomenon of lipstick can be prevented.

  The invention according to claim 2 is a preheating step of preheating a mold for molding a cosmetic, and a filling step of filling the molten cosmetic material into the mold after the mold is preheated in the preheating step. And a cooling step for cooling the cosmetic material filled in the mold in the filling step, wherein a Peltier member capable of heating or cooling is disposed on the outer surface of the die The mold is heated or cooled to perform the preheating step and the cooling step.

  In the invention according to claim 2, a cosmetic mold is formed by disposing a Peltier member that can be heated or cooled on the outer surface of the mold, and heating or cooling the mold to perform a preheating step and a cooling step. The preheating step, the filling step, and the cooling step can be performed on the spot without being moved. For this reason, the space can be narrowed.

  Since the present invention is configured as described above, in the invention described in claim 1, by controlling the temperature of the cosmetic mold by the Peltier member, the temperature control of the cosmetic mold is facilitated, and the temperature is accurately set. Therefore, a high quality product can be molded. Moreover, the temperature history which influences crystal structures, such as a lipstick, can be adjusted flexibly. Furthermore, for example, since the temperature of the cosmetic mold can be cooled faster than a cooling plate or the like, the molding cycle can be shortened. Further, the temperature of the cosmetic mold can be cooled stepwise, and the sweating phenomenon of lipstick can be prevented.

  In the invention according to claim 2, a cosmetic mold is formed by disposing a Peltier member that can be heated or cooled on the outer surface of the mold, and heating or cooling the mold to perform a preheating step and a cooling step. Since the preheating step, the filling step, and the cooling step can be performed on the spot without being moved, the space can be reduced.

  Next, a cosmetic molding apparatus according to an embodiment of the present invention will be described.

  When molding lipstick, as shown in FIG. 1, a plurality of lipsticks are molded with a single mold 10 (in this example, five are used for convenience, but generally 8 to 16 are used). The mold 10 is made of aluminum or brass, and is composed of a lower mold 12 and an upper mold 14 as shown in FIGS. 2A and 2B. The lower mold 12 is in a molten state. A cylindrical filling portion (not shown) that can be filled with lipstick (hereinafter referred to as “lipstick material”) is formed. On the other hand, a hole 18 communicating with the filling portion is formed in the upper die 14 corresponding to the lower die 12.

  The lower mold 12 is divided into two along the center in the width direction, and can be opened along the width direction. For this reason, the substantially U-shaped holding member 20 is fitted to both ends of the mold 10 in the longitudinal direction, and the clamping force of the lower mold 12 and the upper mold 14 is held and filled. The lipstick material is prevented from leaking from the filling part.

  Further, Peltier elements 22 are disposed on the outer surface of the lower mold 12 over substantially the entire surface. When a current is passed through the Peltier element 22, an endothermic reaction occurs on one surface and an exothermic reaction occurs on the other surface due to the Peltier effect described above. As a result, one side is cooled and the other side is heated. Since this reaction is a reversible reaction, the endothermic reaction surface can be changed to an exothermic reaction surface and the exothermic reaction surface can be changed to an endothermic reaction surface by changing the direction of current flow.

  As shown in FIG. 1, a control unit 24 is connected to the Peltier element 22. The control unit 24 is connected to a power supply circuit that applies a DC voltage to the Peltier element 22 and the power supply circuit (not shown). Drivers are provided.

  By changing the voltage by the power supply circuit through this driver, the temperature of the Peltier element 22 is changed, and the temperature of the mold 10 is controlled via the Peltier element 22. Further, heating or cooling of the Peltier element 22 is switched by changing the direction of the current.

  On the other hand, a filling machine 26 in which a lipstick material is accommodated is provided above the mold 10. In the filling machine 26, five nozzles 28 hang down corresponding to the holes 18 of the mold 10. When the filling machine 26 is activated, a fixed amount of lipstick material is discharged from each nozzle 28 and filled into the filling portion through the hole 18.

  Next, a cosmetic molding method according to an embodiment of the present invention will be described.

  As shown in FIGS. 1 and 4, first, the controller 24 raises the temperature of the Peltier element 22 and raises the temperature of the mold 10. Thereby, the metal mold | die 10 is preheated (about 15-30 degreeC). When the mold 10 reaches a predetermined temperature (the time may be controlled, or a temperature sensor (not shown) is provided in the mold 10 and the temperature sensor and the control unit 24 are connected to each other depending on the temperature of the temperature sensor. The melted lipstick material (about 85 to 95 ° C.) is discharged from the filling machine 26 by a predetermined amount and filled into the filling part through the hole 18.

  Next, the control unit 24 changes the direction of the current to lower the temperature of the Peltier element 22 and cool the temperature of the mold 10 (about 10 to 30 ° C.). At this time, the applied voltage value may be changed depending on the crystal structure of the lipstick material, and the mold 10 may be cooled step by step (cooling I and II).

  When the lipstick material is solidified and the upper mold 14 constituting the mold 10 is removed as shown in FIG. 2B, the upper surface of the lower mold 12 has a lipstick at a position corresponding to the hole 18. The rear end of 30 is exposed.

  Then, instead of the upper mold 14, as shown in FIG. 2C, a holder 36 in which a lipstick case 34 provided with a lipstick storage cylinder 32 is disposed is mounted on the lower mold 12. As a result, the rear end portion of the lipstick 30 is stored in the lipstick storage cylinder 32.

  Next, as shown in FIG. 2 (D), the holding member 20 fitted to both ends of the lower mold 12 is removed, and the holder 36 is lifted upward with the lower mold 12 slightly opened. As shown in (E), the molded lipstick 30 is released from the lower mold 12.

  Then, as shown in FIG. 3, the lipstick case 34 is placed on the belt conveyor 38 (note that the holder for holding the lipstick case 34 is not shown here) and is arranged on both sides of the belt conveyor 38. The surface of the lipstick 30 is heated by the burner 40 (so-called framing treatment). Thereby, the crystal structure of the surface of the lipstick 30 is reconstructed, and the surface gloss of the lipstick 30, prevention of sweating, prevention of powdering, etc. are obtained.

  Next, the operation of the cosmetic molding apparatus according to the embodiment of the present invention will be described.

  As shown in FIG. 1, in the present invention, a Peltier element 22 that can be heated or cooled is disposed on the outer surface of a mold 10 that can be filled with lipstick material, and a current value that is supplied to the Peltier element 22 by a control unit 24. In addition, by controlling the direction of the current and controlling the temperature of the mold 10 via the Peltier element 22, the temperature control of the mold 10 is facilitated, and the temperature can be set with high accuracy. For this reason, the high quality lipstick 30 can be molded. Moreover, the temperature history which influences crystal structures, such as lipstick 30, can be adjusted flexibly.

  Furthermore, for example, the temperature of the mold 10 can be cooled faster than a cooling plate or the like, and the molding cycle can be shortened. Moreover, since the temperature of the mold 10 can be cooled stepwise, the sweating phenomenon of the lipstick 30 can be prevented.

  In addition, a Peltier element 22 that can be heated or cooled is disposed on the outer surface of the mold 10, and the mold 10 can be heated or cooled, so that a preheating process and a cooling process of the mold 10 are performed by the Peltier element 22. It can be performed. Thereby, a preheating process, a filling process, and a cooling process can be performed on the spot, without moving the metal mold | die 10. FIG. For this reason, the space can be narrowed.

  In addition, this form is an Example to the last, and it cannot be overemphasized that it can change suitably in the range which does not deviate from the main point of this invention.

  For example, although the lipstick 30 has been described in the present embodiment, the present invention can also be applied to eyeliners and other cosmetics. In this case, the temperature, time, etc. in heating and cooling of the mold 10 vary depending on the cosmetic.

  Further, here, one Peltier element 22 is disposed over substantially the entire outer surface of the lower mold 12, but this is not restrictive. For example, although not shown, it may be below the outer surface of the lower mold, and a plurality of Peltier elements are arranged in the vertical direction on the outer surface of the lower mold so that the opening side and the back of the filling part of the lower mold are arranged. You may enable it to control temperature by each side.

It is a perspective view explaining the structure of the molding apparatus which concerns on embodiment of this invention. (A)-(E) are perspective views which show the process after the shaping | molding by the shaping | molding apparatus which concerns on embodiment of this invention. It is a perspective view which shows a framing process. It is a graph which shows the molding conditions by the molding device concerning an embodiment of the invention. (A)-(C) are perspective views which show the conventional shaping | molding method. (D)-(H) are perspective views which show the process after the conventional shaping | molding.

Explanation of symbols

10 Mold (Cosmetic mold)
22 Peltier elements (Peltier members)
24 control unit 26 filling machine (discharge device)

Claims (2)

A discharge device capable of discharging molten cosmetic material;
A cosmetic mold provided with a cosmetic material discharged from the discharge device so as to be filled, and a Peltier member which can be heated or cooled on the outer surface;
A controller that is connected to the Peltier member and controls the temperature of the cosmetic mold via the Peltier member by controlling the current value and the direction of current to be energized;
A cosmetic molding apparatus characterized by comprising: A preheating process for preheating a mold for molding cosmetics;
After the mold is preheated in the preheating step, a filling step of filling the molten cosmetic material into the mold;
A cooling step of cooling the cosmetic material filled in the mold in the filling step;
In a cosmetic molding method comprising:
A cosmetic molding method, wherein a Peltier member capable of being heated or cooled is disposed on an outer surface of the mold, and the mold is heated or cooled to perform the preheating step and the cooling step.

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