JP2019017854A - Cosmetic production method - Google Patents

Abstract

To provide a cosmetic production method capable of surely and stably producing cosmetic even when a thin and light-weight container is used for suppressing cost.SOLUTION: There is provided a method for producing cosmetic by filling a cosmetic from a lower side of a container, to the dish-shaped vacuum molding container 1 having a recess space 10 for cosmetic storage, comprising: a step for, after setting teh container 1 at a prescribed position of a holder 2 for cosmetic filling, acting a negative pressure to the container 1 for sucking and fixing the container 1 to the holder 2 for cosmetic filling; and a cosmetic filling step for filling a slurry-state cosmetic CS into the recess space by using a filling nozzle 4 from a lower side of the bottom part of the container. In the container fixing step, plural positions on the container are sucked for fixing the container to the holder for cosmetic filling, and the state is maintained for executing the cosmetic filling step.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cosmetic production method using a container obtained by vacuum molding a synthetic resin.

  In the cosmetics market, sample products, trial products, or subdivided cosmetics (hereinafter simply referred to as cosmetics) may be provided as related products of the regular product (this product). And in such cosmetics, a thin product in which a cosmetic dish is filled in a shallow bottom dish is often provided. An inner dish filled with cosmetics is generally provided to the user in a state of being accommodated in an outer container having an accommodating part or a lid part of the inner dish, but the cosmetic container is accommodated without using the inner dish. In some cases, cosmetics are filled directly into the part. As a conventional general cosmetic, there is a product obtained by dry-pressing a powdery cosmetic material by adopting a metal plate or a synthetic resin made by injection (injection molding) as the inner plate. In this dry press, the powder cosmetic is pressed and solidified, so there is a concern about deformation of the inner plate during pressing, and therefore a metal plate having a certain level of rigidity or a synthetic resin plate made by injection has been adopted. Furthermore, powdery cosmetics are difficult to adjust in a minute amount, and the total amount of cosmetics is relatively large. Therefore, from the viewpoint of ensuring the strength of cosmetics as a finished product, it has sufficient rigidity. A solid medium dish was used.

For the above situation, there is a wet filling method in which powder cosmetics are slurried and filled with water or a solvent. This slurry filling has an advantage that cosmetics can be manufactured by greatly reducing the pressing pressure as compared with the case of the dry press described above. In addition, in the case of a slurry-like cosmetic, since it contains a large amount of solvent, it is easy to adjust the amount of cosmetic to be filled. Therefore, it is suitable for manufacturing methods such as sample products, trial products, or subdivided cosmetics. .
As described above, there are various methods of manufacturing cosmetics by filling the cosmetic material in the form of a slurry. For example, there is one that is performed by fixing the inner dish to a predetermined filling holder. In this filling, there are known a filling method called so-called front filling in which cosmetics are filled from the upper side of the middle dish and a so-called back filling method in which cosmetics are filled from the lower side of the middle dish. However, back filling is often employed for reasons such as quality stability and manufacturing efficiency.

  For example, Patent Document 1 discloses a method for manufacturing cosmetics by back-filling a slurry-like cosmetic material into a flat thick plate-shaped intermediate dish formed of a synthetic resin.

JP 2012-192020 A

  What is disclosed in Patent Document 1 is one in which a synthetic resin is injected (injection molding) or the like, and uses an intermediate dish having a certain thickness and sufficient rigidity. Therefore, the container can be relatively easily and stably fixed to the filling holder, and the slurry-like cosmetic can be filled.

However, in recent years when the cycle of cosmetics has been shortened, there has been a great demand for cost reduction of molds for inner dishes and outer containers. Here, the cost of the synthetic resin middle tray mold by injection is expensive, which is against the above requirement.
Therefore, it is necessary to use a lower-cost one for the above-described middle dish (hereinafter referred to as a container), but such a container is usually thin (thin), lightweight, and rigid. It will be low. For this reason, the container cannot be stably fixed to the filling holder, and when the slurry-like cosmetic is poured into the container, the bottom of the container may be deformed and floated, which may cause a situation in which it cannot be properly filled. . As a result, problems such as poor filling of cosmetics and surrounding contamination become a problem.

  Therefore, an object of the present invention is to propose a production method capable of producing a cosmetic product stably and reliably even when a thin and lightweight container with reduced cost is used.

The above-mentioned object is a method for manufacturing cosmetics by filling cosmetics into the dish-shaped vacuum formed container having a concave space for storing cosmetics from the lower side of the container,
A container fixing step of fixing the container to the cosmetic filling holder after the container is set at a predetermined position of the cosmetic filling holder and sucked by applying a negative pressure to the container;
A cosmetic filling step of filling slurry-like cosmetic into the recessed space using a filling nozzle from below the bottom of the container;
In the container fixing step, a plurality of portions of the container are sucked and fixed to the cosmetic filling holder, and the cosmetic filling step is executed while maintaining the state. From the cosmetic manufacturing method, Can be achieved.

In the container fixing step, it is preferable that at least three portions of the container are sucked and fixed to the cosmetic filling holder.
In the container fixing step, the container is placed in the cosmetic filling holder with the same center angle and the same distance from the center to the portion where the container is sucked at the same center angle. Is preferably fixed.

  Further, in the container fixing step, the container is placed in the cosmetic filling holder so that the position of the filling nozzle is within a plane defined by a straight line connecting the at least three places for sucking the container. It is preferable to fix.

  In the cosmetic filling step, it is preferable to simultaneously remove the solvent by applying a negative pressure to the cosmetic in the recessed space.

  In the cosmetic filling step, it is possible to manufacture a cosmetic that holds a multicolored cosmetic by filling a plurality of cosmetics into the recessed space using a plurality of the filling nozzles.

  According to the production method of the present invention, even if a synthetic resin vacuum molded container obtained at low cost is adopted, the container is securely fixed to the cosmetic filling holder, and the cosmetic is stored in the concave space for storing the cosmetic. Cosmetics can be manufactured by supplying a stable and reliable material. Therefore, cosmetics can be produced efficiently without contaminating the surroundings.

It is a container used for manufacturing cosmetics of the present invention, (a) is a container used for cosmetics filled with monochromatic cosmetics, (b) is a diagram showing a container used for cosmetics filled with multicolor cosmetics. is there. It is the figure shown about the holder for cosmetics filling used when filling cosmetics in the container shown to Fig.1 (a). It is the figure shown in order to demonstrate the manufacturing method of the cosmetics which concern on this invention. It is the figure shown in order to demonstrate the example of the suction location at the time of providing a several through-hole in the container of cosmetics. It is the figure shown in order to demonstrate the example in the case of setting only two suction locations around the through-hole of a cosmetic container.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a view showing a container 1 used for cosmetics, in which (a) is a container used for cosmetics filled with monochromatic cosmetics, and (b) is a cosmetic filled with multicolored cosmetics (three colors in the example). It shows about the container used for.
The container 1 is a resin product obtained by a vacuum molding (also called vacuum molding) method. Here, the vacuum molding method means that a synthetic resin film is heated, and a suction structure based on vacuum is applied to the synthetic resin film and pressed against a previously prepared molding die, thereby forming a resin structure having a desired three-dimensional shape. It is a manufacturing method to obtain a body. The vacuum forming method uses a synthetic resin film as a base material, and is known as a preferable processing technique for obtaining a relatively thin (thin) resin structure. This vacuum molding method can reduce the manufacturing cost at a low cost compared to the case where a resin structure is obtained using other injection molding methods, etc., and the resin structure has a certain level of presence in appearance. Although it has the advantage of being able to obtain things, it also has the disadvantage of being easily deformed when subjected to external forces.

The synthetic resin film of the base material forming the container 1 is preferably selected from the group of polyethylene terephthalate (PET), polypropylene (PP), vinyl chloride and polystyrene (PS).
The container 1 preferably comprises PET as a base material, and a dish having a shallow concave space 10 formed by a bottom portion 12 of the base material 11 and a peripheral frame portion 13 provided annularly around the base material 11. It is molded into a shape.

  In addition, the thickness of PET used as the substrate is, for example, 0.5 mm, the height of the peripheral frame portion 13 is, for example, 2.5 mm, and the depth of the recessed space 10 formed in the center is, for example, 2.0 mm, and 40 mm. Formed to have an area of × 40 mm, the container 1 has a shallow dish shape.

The difference between the containers 1 shown in FIGS. 1A and 1B is the number and arrangement positions of the through holes 15 formed in the bottom portion 12. In the container 1 of FIG. 1A, only one through hole 15 is formed at the center. In the case of the container 1 in FIG. 1B, three through holes 15a, 15b, 15b are formed on the central line with a space. These through holes 15 are holes for back-filling cosmetics. At the time of manufacturing the cosmetic, a cosmetic filling nozzle is disposed below the through hole 15, and the concave space 10 of the container 1 is filled with the slurry-like cosmetic.
Therefore, the container 1 in FIG. 1A becomes a container used for cosmetics filled with a single color cosmetic, and the container 1 in FIG. 1B is used for cosmetics filled with multicolor (three colors in the example) cosmetics. It becomes a container.
In addition, the position (namely, makeup | decoration) which sets the through-holes 15 and 15c provided in the container 1 by the reason on design, manufacture, the kind of cosmetics to be filled, the area occupation ratio of each cosmetics in a container, etc. The filling position of the material is appropriately changed and adjusted. Therefore, the setting positions of the through holes 15 and 15a to 15c shown in FIGS. 1A and 1B are merely examples.
Below, in order to simplify description, the case where the container 1 shown to Fig.1 (a) is used is demonstrated.

FIG. 2 is a diagram showing a cosmetic filling holder 2 that is used when the container 1 shown in FIG. Since the container 1 of FIG. 1 (a) is filled with a single color (a kind) of cosmetic, the cosmetic filling holder 2 is also provided with one through hole 25. The through hole 25 on the holder 2 side is set at a position corresponding to the through hole 15 on the container 1 side in FIG.
At the time of filling the cosmetic, a filling nozzle (not shown here) is arranged from the lower side of the cosmetic filling holder 2 so as to face the through holes 25, 15, and is in a slurry state in the recessed space 10 of the container 1. The cosmetic is injected with a predetermined pressure.
In addition, if the detail of the cosmetics to be used is demonstrated easily, cosmetics will be made into slurry form and prepared beforehand. Any known solvent can be used for mixing into the slurry, for example, lower alcohols such as ethyl alcohol and isopropyl alcohol, hydrocarbon solvents, silicone oil solvents, cyclic silicone solvents, water, or These mixtures are mentioned. What is necessary is just to adjust suitably the ratio to mix according to powder cosmetics. For example, when the powder cosmetic is eye shadow, 60 parts by mass of eye shadow and 40 parts by mass of isopropyl alcohol can be mixed to obtain a slurry having a solid content concentration of 60% by mass.

As shown in FIG. 2, the upper surface of the cosmetic filling holder 2 is provided with irregularities corresponding to the shape of the container 1 so that the container 1 can be set at a predetermined position. Therefore, in a state where no external force is applied, the container 1 can be easily and stably set at a predetermined position on the cosmetic filling holder 2.
However, during actual cosmetic production, since the slurry-like cosmetic is injected with pressure as described above, the bottom 12 of the container 1 may be deformed and floated under the influence. Sometimes the disadvantages described above occur.

Therefore, a structure for holding the set container 1 in a predetermined position is incorporated in the cosmetic filling holder 2 of FIG. Specifically, the cosmetic filling holder 2 is provided with a suction mechanism for sucking the bottom 12 of the set container 1 from the lower side.
The suction mechanism includes a suction hole 21 that is set at the bottom of the cosmetic filling holder 2 to generate negative pressure, a negative pressure supply hose 22 that is connected to an external negative pressure generator (vacuum device) 24, and a makeup A negative pressure line 23 that is set inside the material filling holder 2 and supplies the negative pressure from the negative pressure generator 24 to the suction hole 21 is formed.

In the cosmetic filling holder 2 of FIG. 2, the case where four suction holes 21 are provided so as to surround the through hole 25 is illustrated.
In order to prevent the bottom 12 of the container 1 from being deformed and floating when the slurry-like cosmetic is poured into the container 1, the bottom 12 of the container 1 is sucked at a plurality of points (points). It is preferable to support. A position facing the four (plurality) of suction holes 21 is a place where the container 1 is sucked. Although FIG. 2 shows the case where the container 1 is sucked at four places, the bottom 12 of the container 1 is fixed to the cosmetic filling holder 2 side by sucking at least three places (three points). it can.

Here, the filling position where the filling nozzle is arranged is in a plane defined by a straight line connecting the places (at least three places) where the container 1 is sucked, that is, the sucking position surrounds the filling position. Thus, it is preferable to fix the container 1. If it does in this way, when slurry-like cosmetics are poured from a filling nozzle, it can control that bottom 12 of container 1 changes and floats up.
For example, when the container 1 is a flat and equilateral triangle, it is preferable to set a place to be sucked (a place where the suction holes 21 are arranged) corresponding to three corners with the substantially center of the container 1 as a filling position. In this case, the distance (pitch) from the center to each suction hole 21 is the same at the same center angle (120 degrees) with the filling position (position of the filling nozzle) as the center. With such a setting, the pressure received at the center (that is, the injection pressure of the slurry-like cosmetic material) can be equally divided and received, so that the container 1 can be more securely fixed to the cosmetic filling holder. . Even when the container 1 is polygonal, circular, or the like, it is preferable to set the relationship between the filling position and the suction hole 21 based on the technical viewpoint as described above.

  Therefore, as illustrated in FIG. 2, when the outer shape of the container 1 is planar and rectangular, and the filling position is substantially the center of the container 1, four suction points corresponding to the four corners are provided. It is preferable to set (location where the suction hole 21 is disposed). In addition, when the container is a regular polygon having a quadrangular shape or more, it is possible to set a location to be sucked corresponding to the corner position. When the polygon is an even number such as 4, 6, 8, and the like, a location to be sucked may be set on the diagonal line. In addition, when the regular polygon is an odd number such as 5, 7, 9, and the like, a suction point may be set on a line connecting the center point and each apex angle.

In the container 1 illustrated in the above description and FIG. 1A, the filling position is set at a position where the setting of the suction hole 21 is relatively easy.
However, the filling position may be changed as necessary for design reasons. For example, the position of the through hole 15 illustrated in FIG. 1A is the center of the bottom portion 12, but may be set to a position shifted from the center. In this case, with the same center angle around the filling position (position of the filling nozzle 4 and the through-hole 15), the distance from the center to the location where the container 2 is sucked is the same, and the cosmetic It is preferable to suck and fix the container to the filling holder 2. That is, the container is fixed by adopting a structure in which the distance (pitch) to each suction hole 21 is set to the same length at the same central angle with respect to the filling position. At least if it is set in this way, even when receiving an injection pressure from the slurry-like cosmetic injected through the through-hole 15, the container 1 is a holder for filling the cosmetic by generating an even resistance force. It is possible to prevent floating from 2.

FIGS. 3A and 3B are diagrams showing a process for producing cosmetics using the monochromatic cosmetic container 1 shown in FIG. 1A, wherein FIG. 3A is a container fixing step, and FIG. 3B is cosmetic filling. Steps are shown.
In FIG. 3, the manufacturing equipment used for manufacture is shown in a simplified manner. In FIG. 3 (a), the apparatus spaced apart upward is shown with its upper surface when slurry-like cosmetic is poured into the container 1. This is a press head device 3 having a suction function of sucking and removing excess solvent contained in the cosmetic while being regulated and drying and solidifying. The press head device 3 can be brought into contact with the cosmetic filling holder 2 disposed below by an elevating mechanism (not shown).
More specifically, the press head device 3 can apply a negative pressure while applying a pressing pressure to the cosmetic in the container 1 fixed on the cosmetic filling holder 2. A plurality of suction holes 31 are provided on the lower surface of the press head device 3, and the suction holes 31 are connected to an external suction device (vacuum device) 32 via a hose 33, and generate negative pressure in the suction holes 31. be able to.
Here, the press head device 3 is designed to have a size that fits in the concave space 10 of the container 1 and does not rattle, and has a height corresponding to the filling amount of the cosmetic filled in the concave space 10. Adjustment is also possible.

In addition, a filling nozzle 4 for supplying slurry-like cosmetic material is disposed below the position corresponding to the filling hole 25 of the cosmetic filling holder 2. The filling nozzle 4 is also brought into contact with the lower side of the bottom of the cosmetic filling holder 2 existing above by an elevating mechanism (not shown) to supply the slurry-like cosmetic CS while applying a predetermined injection pressure. Is possible.
In addition, what was illustrated between the cosmetic filling holder 2 and the press head device 3 is a protective sheet material 5 that is preferably used when manufacturing cosmetics. As the protective sheet material, a porous sheet such as paper, cloth, and nonwoven fabric can be used, and these can be used by overlapping or combining them. Here, a case where the protective sheet material 5 is configured by stacking the cloth 51 and the paper 52 is shown. When porous sheets made of different materials are used in this manner, the cosmetic CS can be obtained by drying and solidifying it by removing unnecessary solvents while reliably protecting the cosmetic.

  FIG. 3A shows the state of the container fixing step, and the container 1 is set at a predetermined position of the cosmetic filling holder 2. As described above, the cosmetic filling holder 2 includes the suction mechanism, and fixes the container 1 by the suction force based on the negative pressure by the suction hole 21.

Further, as shown in FIG. 3B, the press head device 3 and the filling nozzle 4 abut against the cosmetic filling holder 2 from above and below, respectively, and below the bottom of the container 1 (FIG. 3). The lower side of the container 1 is filled with the slurry-like cosmetic CS in the concave space 10 using the filling nozzle 4, while the press head device 3 is placed on the cosmetic CS from the front side of the container 1 (upper side in FIG. 3). Apply negative pressure to
At this time, the operation in the container fixing step is maintained, and the suction force based on the plurality of suction holes 21 set around the through hole 15 of the container 1 is effectively acting, so that the container 1 is securely It is stably fixed on the cosmetic filling holder 2 side.
Here, when the slurry-like cosmetic is poured into the concave space 10 from below the bottom portion and filled, there is no inconvenience such as the peripheral portion of the through hole 15 being lifted. Moreover, since the lower end part of the press head device 3 is joined with the protective sheet material 5 in a state where no gap is formed in the recessed space 10 with respect to the upper side of the cosmetic, the container 1 is positioned from above and below. It has become. Therefore, cosmetics can be produced by stably and reliably filling cosmetics in the container 1 without contaminating the periphery of the filling nozzle.

The cosmetic manufacturing method described above is a case where a monochromatic cosmetic is manufactured using the container 1 shown in FIG. 1A, but the present invention is not limited to the case where a monochromatic cosmetic is manufactured. FIG. 1B shows a container 1 used when manufacturing multicolor (three colors) cosmetics, and the number of through holes 15 set in the bottom 12 of the container 1 is determined according to the number of colors.
As shown in FIG.1 (b), when the three through-holes 15a-15c are formed in the container 1, also about each through-hole 15a-15c (filling position) about the holder for cosmetics filling in which this container is set The suction holes are appropriately designed so as to surely suck around the surroundings. An example is as follows.

FIG. 4 shows the locations where the container 1 in which the three through holes 15a to 15c shown in FIG. 1 (b) are formed are preferably sucked (positions where the container 1 is sucked, indicated by x). It is the figure which has illustrated. The cosmetic filling holder 2 shown in FIG. 2 is configured to arrange four suction holes 21 with respect to one through hole 25 and sucks the periphery of one through hole 15 toward the container 1 side. But apply that configuration.
In FIG. 4, around the two left and right through-holes 15 a and 15 c, four locations are sucked in the same manner as in FIG. 2 to prevent the bottom of the container 1 from being deformed and floating. On the other hand, the central through hole 15b is designed so that one side of the suction locations for the through holes 15a and 15c on both sides is used together. If it does in this way, it can be made into eight places instead of twelve places. Although not shown, the cosmetic filling holder 2 illustrated in FIG. 2 is provided with three through holes 25a to 25c and eight suction holes 21 at positions corresponding to the eight suction locations. It will be modified to provide.
It should be noted that, in any of the three through holes 15a to 15c, it is of course possible to set four places for suction and fix the container 1 to the cosmetic filling holder 2 side with a total of twelve places. Good.

In addition, also when manufacturing multicolor cosmetics, cosmetics can be manufactured similarly by the container fixing step and cosmetic filling step described above.
However, in the case of multicolor cosmetics, different cosmetics are filled into the container 1 from the plurality of filling nozzles according to the number of colors. Further, a cosmetic partitioning jig (partition plate) is arranged in the recessed space 10 so that the cosmetics to be filled do not come into contact with each other, and makeup is applied while being pressed and sucked by the press head device 3. It is preferred to carry out the filling step.

  According to the manufacturing method of the present invention described above, even if a thin and lightweight container formed of a vacuum-formed product with reduced cost is used, the cosmetic is stably fixed while the container is securely fixed to the cosmetic filling holder. Can be manufactured reliably.

Although the description of the embodiment has been completed above, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the scope of the invention.
In the description of the above-described embodiment, a case has been described in which at least three suction locations (locations opposed to the suction holes 21) are set around the through-hole 15 of the container 1, but the present invention is not limited thereto. . For example, as shown in FIG. 5, when the through-hole 15 provided in the container 1 is in the vicinity of the peripheral frame portion 13, the periphery of the through-hole 15 is obtained by cooperation of the peripheral frame portion 13 and two (plural) suction locations. May be fixed to the cosmetic filling holder 2 side. As shown in FIG. 3, the surface of the cosmetic filling holder 2 below the peripheral frame portion 13 is formed with irregularities corresponding to the shape of the container 1, so that it fits firmly. As a result, a structure that is difficult to deform is secured around the peripheral frame portion 13. Therefore, it is possible to make two suction locations (indicated by x marks) by utilizing the peripheral frame portion 13. That is, the through hole 15 of the container 1 may be set in a region surrounded by the peripheral frame portion 13 and the two suction locations. Such a configuration is also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Container 2 Holder for cosmetic filling 3 Press head apparatus 4 Filling nozzle 5 Protection sheet material 10 Recessed space 15, 15a-15c Through-hole 21 Suction hole 25 Through-hole CS Cosmetic

Claims (6)

A method of manufacturing cosmetics by filling cosmetics into the dish-shaped vacuum forming container having a concave space for storing cosmetics from the lower side of the container,
A container fixing step of fixing the container to the cosmetic filling holder after the container is set at a predetermined position of the cosmetic filling holder and sucked by applying a negative pressure to the container;
A cosmetic filling step of filling slurry-like cosmetic into the recessed space using a filling nozzle from below the bottom of the container;
In the container fixing step, a plurality of portions of the container are sucked and fixed to the cosmetic filling holder, and the cosmetic filling step is executed while maintaining the state.   The method for manufacturing a cosmetic according to claim 1, wherein, in the container fixing step, at least three portions of the container are sucked and fixed to the cosmetic filling holder.   In the container fixing step, the container is fixed to the cosmetic filling holder with the same center angle and the same distance from the center to the portion where the container is sucked at the same center angle. The method for producing a cosmetic product according to claim 2, wherein:   In the container fixing step, the container is fixed to the cosmetic filling holder so that the position of the filling nozzle is in a plane defined by a straight line connecting the at least three places for sucking the container. The method for producing a cosmetic product according to claim 2.   5. The method for manufacturing a cosmetic according to claim 1, wherein in the cosmetic filling step, a solvent is removed by applying a negative pressure to the cosmetic in the recessed space at the same time.   The cosmetic filling step uses a plurality of the filling nozzles to manufacture a cosmetic that holds a multicolored cosmetic by filling a plurality of cosmetics in the recessed space. 6. A method for producing a cosmetic according to any one of 5 above.

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