JP7565258B2 - Solid cosmetic preparation and method for producing the same - Google Patents

Description

The present invention relates to cosmetics and methods for producing cosmetics, and in particular to cosmetics and methods for producing cosmetics that have a changing pattern that changes depending on the viewing angle.

Conventionally, cosmetics such as foundation, blush, and lipstick are known that have patterns such as figures and letters on the surface of the cosmetic. Examples of such patterns include forming patterns by cutting out the cosmetic with a mold (see Patent Document 1 and Patent Document 2), forming patterns by burning with laser light (see Patent Document 3), and forming patterns by transferring printing powder to the cosmetic surface using an electrostatic screen printing method (see Patent Document 4).

JP 2002-326908 A JP 2008-174474 A JP 2000-247832 A JP 2005-144935 A

However, all conventional patterned cosmetics only had one unchanging pattern that was designed in advance and applied to part or all of the surface of the cosmetic. As a result, conventional patterned cosmetics had problems in that the overall pattern that could be adopted for one cosmetic was limited to one type, which placed great restrictions on the design of the pattern and also limited the variation in the pattern.

The object of the present invention is to provide a cosmetic product and a method for manufacturing the cosmetic product that are highly decorative by having a decorative structure in which the pattern seen changes depending on the viewing angle. In particular, the present invention aims to apply changing technology, which has not previously been considered for application to cosmetics, to the cosmetic product and its manufacturing method.

To achieve the above object, the cosmetic of the present invention is a cosmetic having a pattern on its surface, characterized in that the pattern is a line drawing that combines a first pattern formed by a collection of linear grooves arranged in the same direction, and a second pattern formed by a collection of linear grooves arranged in a different direction from the grooves that make up the first pattern.

The cosmetic product of the present invention is also characterized in that the grooves constituting the first pattern and the grooves constituting the second pattern are arranged in a dashed line with a gap in the linear direction, and are spaced apart in the width direction of the grooves.

In addition, in the cosmetic product of the present invention, the pattern is a line drawing that is further synthesized from a base pattern formed by a collection of linear grooves that are arranged in a different direction from both the grooves that make up the first pattern and the grooves that make up the second pattern.

The cosmetic material of the present invention is also characterized in that the width of the grooves is 0.5 mm or less.

The cosmetic material of the present invention is also characterized in that the depth of the grooves is 0.05 mm to 0.2 mm.

The cosmetic material of the present invention is also characterized in that the distance between adjacent grooves arranged in the same direction is 0.5 mm or less.

The cosmetic material of the present invention is also characterized in that the length of the grooves is 0.07 mm to 0.6 mm.

The method for producing a cosmetic product according to the present invention is a method for producing a cosmetic product having a pattern on its surface, and is characterized by comprising the steps of: producing a master mold on which a line drawing is formed that combines a first pattern formed by a collection of linear grooves arranged in the same direction and a second pattern formed by a collection of linear grooves arranged in a different direction from the grooves that make up the first pattern; producing an elastic mold using the master mold with a mold surface that corresponds to the pattern; and filling and solidifying the cosmetic product using the elastic mold.

The present invention provides a highly decorative cosmetic product and a method for producing the cosmetic product by having a decorative structure in which the pattern seen changes depending on the viewing angle.

FIG. 2 is a diagram illustrating a basic line drawing according to an embodiment of the present invention. 1A and 1B are diagrams illustrating a pattern line drawing and a unit pattern according to an embodiment of the present invention. 1A to 1C are diagrams illustrating an example of a configuration of a changing pattern according to an embodiment of the present invention. 4 is a diagram illustrating how the changing pattern shown in FIG. 3 looks different when the viewing angle is changed. FIG. 13A to 13C are diagrams illustrating another example of the configuration of a changing pattern according to an embodiment of the present invention. 6 is a diagram illustrating how the changing pattern shown in FIG. 5 looks different when the viewing angle is changed. FIG. 1A to 1C are diagrams illustrating how the intensity of reflected light changes with respect to the concave stripes that constitute the changing pattern according to an embodiment of the present invention. 4A to 4C are diagrams illustrating the structure of the grooves that make up the changing pattern according to an embodiment of the present invention. 1 is a flowchart of a method for producing a cosmetic according to an embodiment of the present invention. 1A to 1C are schematic cross-sectional views illustrating a method for producing a cosmetic according to an embodiment of the present invention. 1 is a schematic diagram showing a cosmetic manufacturing system according to an embodiment of the present invention.

The following describes the cosmetic material and the method for producing the cosmetic material according to the embodiment of the present invention with reference to the drawings. Note that in this specification, the term "cosmetics" includes cosmetic products in which the cosmetic material is filled in a container, work-in-progress products, and semi-finished products.

[Cosmetics]
As an example, the cosmetic product 1 has a decorative structure in which a pattern (hereinafter also referred to as a "changing pattern") is formed on the surface 6a (see Figure 10 (f)) of a cosmetic material 6 filled in a flat, bottomed cylindrical container 2, which is a line drawing made up of two or more designs that change when viewed from a different angle.

The cosmetic product according to the embodiment of the present invention, and in particular the changing pattern formed on the surface of the cosmetic product, will be described with reference to Figs. 1 to 8. Fig. 1 is a diagram for explaining a basic line drawing according to the embodiment of the present invention, Fig. 2 is a diagram for explaining a pattern line drawing and a unit pattern according to the embodiment of the present invention, Fig. 3 is a diagram for explaining an example of the configuration of a changing pattern according to the embodiment of the present invention, Fig. 4 is a diagram for explaining the change in appearance when the viewing angle of the changing pattern shown in Fig. 3 is changed, Fig. 5 is a diagram for explaining another example of the configuration of a changing pattern according to the embodiment of the present invention, Fig. 6 is a diagram for explaining the change in appearance when the viewing angle of the changing pattern shown in Fig. 5 is changed, Fig. 7 is a diagram for explaining the manner in which the intensity of reflected light changes with respect to the concave stripes that constitute the changing pattern according to the embodiment of the present invention, and Fig. 8 is a diagram for explaining the structure of the concave stripes that constitute the changing pattern according to the embodiment of the present invention.

The surface 6a of the cosmetic material 6 according to this embodiment has a decorative structure in which the pattern seen changes depending on the viewing angle. More specifically, as shown in Figures 4(a) and (b), the surface 6a of the cosmetic material 6 (see Figure 10(f)) has a changing pattern 31a in which the visibility of multiple designs 38a, 38b, and 38c changes depending on the viewing angle.

The changing pattern 31a is a line drawing formed by combining line drawings 35a, 35b, and 35c relating to the multiple designs 38a, 38b, and 38c shown in Figures 3(a) to (c). In the changing pattern 31a, the area in which two or more of the designs 38a, 38b, and 38c are combined is composed of the pattern line drawing 36 (36a, 36b, 36c, and 36d) shown in Figures 2(a), (b), (e), and (f).

Pattern line drawing 36 (36a, 36b, 36c, 36d) is formed by combining basic line drawings 35a, 35b, 35c. In this embodiment, as an example, basic line drawing 35 (35a, 35b, 35c) is formed by a collection of straight short lines 32 (32a, 32b, 32c) arranged in the same direction as shown in Figures 1 (a) to (c), and three patterns with different angles are used.

In order to create such a changing pattern 31a, in this embodiment, each basic line drawing 35 (35a, 35b, 35c) shown in Figures 1(a) to (c) is created using computer image editing software or the like, and these basic line drawings 35a, 35b, 35c are used as a background or are formed into a desired shape of pattern, letter, etc.

In this embodiment, the basic line drawing 35a shown in Fig. 1(a) is used as the base pattern, the basic line drawing 35b shown in Fig. 1(b) is used as the first pattern, and the basic line drawing 35c shown in Fig. 1(c) is used as the second pattern. All of these basic line drawings 35a, 35b, and 35c are formed by continuously arranging dashed line arrangements 34a, 34b, and 34c, in which short lines 32a, 32b, and 32c are continuously arranged in the linear direction at a constant interval 33 (d1), as shown in Figs. 1(a) to (c), with the short lines 32a, 32b, and 32c continuously arranged in the width direction at a constant interval d2.

In this embodiment, the angles of formation of the basic line drawings 35a, 35b, and 35c shown in Figures 1(a) to (c) are different from each other. As an example, each short line 32a constituting the basic line drawing 35a in Figure 1(a) is formed at an inclination of θ1 = 30° counterclockwise from the horizontal line (i.e., inclined to the right), each short line 32b constituting the basic line drawing 35b in Figure 1(b) is formed in the vertical direction, and each short line 32c constituting the basic line drawing 35c shown in Figure 1(c) is formed at an inclination of θ2 = 30° clockwise from the horizontal line (i.e., inclined to the left).

In this embodiment, the pattern line drawing 36 (36a, 36b, 36c, 36d) shown in Figures 2(a), (b), (e), and (f) is formed by appropriately combining the line drawing 35a forming the base pattern shown in Figure 1(a), the line drawing 35b forming the first pattern shown in Figure 1(b), and the line drawing 35c forming the second pattern shown in Figure 1(c). This pattern line drawing 36 (36a, 36b, 36c, 36d) is formed by continuously arranging a pattern consisting of a plurality of short lines 32 (32a, 32b, 32c) as described above.

More specifically, using the line drawings 35a, 35b, and 35c shown in Figures 1(a) to (c), a unit pattern 39a is formed by combining three diamonds as shown in Figure 2(a), and this unit pattern 39a is arranged vertically and horizontally without gaps to form the pattern line drawing 36a.

Similarly, as shown in FIG. 2(b), a unit pattern 39b consisting of a diamond shape tilted to the left is formed using the line drawings 35b and 35c shown in FIG. 1(b) and (c), and this unit pattern 39b is arranged continuously to form the pattern line drawing 36b.

Similarly, as shown in FIG. 2(e), a unit pattern 39c consisting of a diamond shape tilted to the right is formed using the line drawings 35a and 35b shown in FIG. 1(a) and (b), and this unit pattern 39c is arranged continuously to form pattern line drawing 36c.

Similarly, as shown in FIG. 2(f), a unit pattern 39d consisting of a horizontally inverted diamond shape is formed using the line drawings 35a and 35c shown in FIG. 1(a) and (c), and this unit pattern 39d is continuously arranged in the horizontal direction to form a pattern line drawing 36d.

Next, an embodiment in which a specific pattern is drawn using the above three types of basic line drawings 35a, 35b, and 35c will be described. As shown in FIG. 3(a), a base pattern 38a is formed using the basic line drawing 35a in FIG. 1(a). As shown in FIG. 3(b), a first pattern 38b is formed using the basic line drawing 35b in FIG. 1(b). As shown in FIG. 3(c), a second pattern 38c is formed using the basic line drawing 35c in FIG. 1(c).

More specifically, Fig. 3(a) shows a base pattern 38a that forms the background. The base pattern 38a is formed by a basic line drawing 35a (see Fig. 1(a)) in which each short line 32a is arranged at an angle to the right, and this basic line drawing 35a is formed over the entire background area.

Figure 3(b) shows the first pattern 38b. The first pattern 38b is formed by a basic line drawing 35b (see Figure 1(b)) in which the short lines 32b are arranged vertically, and as an example, the outer shape is a star.

Furthermore, Fig. 3(c) shows the second pattern 38c. The second pattern 38c is formed by a basic line drawing 35c (see Fig. 1(c)) in which each short line 32c is arranged at an angle to the left, and as an example, the outer shape is a regular pentagon.

In this embodiment, the first pattern 38b has a star shape, and the second pattern 38c has a regular pentagon shape, but the present invention is not limited to this, and the patterns may be various figures, designs, or letters (including symbols).

Then, the basic line drawing 35a (see FIG. 3(a)) for the base pattern 38a, the basic line drawing 35b (see FIG. 3(b)) for the first pattern 38b, and the basic line drawing 35c (see FIG. 3(c)) for the second pattern are combined to obtain the changing pattern 31a as a combined pattern line drawing, as shown in FIG. 3(d).

In this embodiment, the changing pattern 31a shown in FIG. 3(d) is designed using computer image editing software as described above, and a master mold (not shown) described below is produced based on this. As shown in FIG. 7, the short lines 32a, 32b, and 32c that make up the changing pattern 31a are formed by grooves 41 (41a, 41b, and 41c) in the master mold. As an example, the short lines 32a, 32b, and 32c that make up the changing pattern 31a are formed by engraving them into grooves using a laser processing machine. The master mold produced in this manner is used to produce an elastic mold 5, and the cosmetic material 6 is filled and solidified using the elastic mold 5, so that the changing pattern 31a formed in the master mold is formed on the surface 6a of the cosmetic material 6 (see FIG. 9).

In this embodiment, the cosmetic 6 that forms the changing pattern 31a as described above is an oil-based solid cosmetic, and examples include various solid cosmetic products that can maintain their shape at room temperature, such as lipstick, lip gloss, lip cream, concealer, foundation, eye color, and cheek color.

The dimensions of the grooves 41 constituting each short line 32, which are preferable for filling and solidifying the cosmetic material 6 using the elastic mold 5 as described above to form the changing pattern 31a on the surface 6a and fully exerting the changing effect of multiple patterns, will be described with reference to Figure 8. The width w of the grooves 41 (short line 32) is preferably 0.5 mm or less. The distance d2 between the grooves 41 (short line 32) in the width direction of the grooves 41 (short line 32) is preferably 0.5 mm or less. Furthermore, the depth d3 of the grooves 41 (short line 32) is preferably 0.05 mm to 0.2 mm. The length l (see Figure 1 (b)) of the grooves 41 (short line 32) is preferably 0.07 mm to 0.6 mm, for example.

As described above, the changing pattern 31a formed on the surface 6a of the cosmetic 6 is a line drawing that combines at least a first pattern 38b formed by a collection of linear grooves 41b arranged in the same direction, and a second pattern 38c formed by a collection of linear grooves 41c arranged in a different direction from the grooves 41b that make up the first pattern 38b.

The grooves 41b constituting the first handle 38b and the grooves 41c constituting the second handle 38c are arranged in a dashed line with a distance d1 between them in the linear direction, and are spaced apart in the width direction of the grooves 41b, 41c.

In addition, the changing pattern 31a is a line drawing that is further synthesized from a base pattern 38a formed by a collection of linear recesses 41a that are arranged in a different direction from both the recesses 41b that make up the first pattern 38b and the recesses 41c that make up the second pattern 38c.

As shown in FIG. 7, the recessed lines 41a, 41b, and 41c that make up the short lines 32a, 32b, and 32c of the changing pattern 31a have different intensities of reflected light when the viewing angle is changed, and therefore some recessed lines 41 are clearly visible and others are not, depending on the viewing angle, causing the visibility to change.

Due to this changing effect, the pattern that is clearly visible changes depending on the viewing direction, as shown in Figures 4(a) and (b). That is, when viewed from a direction where the reflected light from the grooves 41c that make up the short line 32c is weak and the reflected light from each of the grooves 41a and 41b that make up the short line 32a and short line 32b is strong, the background base pattern 38a and the star-shaped first pattern 38b are clearly visible, as shown in Figure 4(a). On the other hand, when viewed from a direction where the reflected light from the grooves 41b that make up the short line 32b is weak and the reflected light from each of the grooves 41a and 41c that make up the short line 32a and short line 32c is strong, the background base pattern 38a and the regular pentagonal second pattern 38c are clearly visible, as shown in Figure 4(b). In this way, by having a decorative structure in which the pattern that is visible changes depending on the viewing angle, a highly decorative cosmetic product can be obtained.

As a modification of this embodiment, an area in which the basic line drawing 35a is not formed may be provided in the area of the background base pattern 38a corresponding to the patterns (38b, 38c) to be combined with this base pattern 38a. For example, according to the example shown in FIG. 5(a), a blank area 40 in which the basic line drawing 35a is not formed is provided in the star-shaped area of the base pattern 38a corresponding to the first pattern 38b to be overlaid on the base pattern 38a. In this case, by overlaying the star-shaped first pattern 38b (basic line drawing 35b) of FIG. 5(b) on the area of the blank area 40, and further overlaying the regular pentagonal second pattern 38c (basic line drawing 35c) of FIG. 5(c), it is possible to form the changing pattern 31b as a combined pattern line drawing shown in FIG. 5(d).

According to the above configuration, when viewed from a direction where the reflected light from the grooves 41c that make up the short line 32c is weak and the reflected light from each of the grooves 41a, 41b that make up the short line 32a and short line 32b is strong, as shown in Figure 6 (a), the background base pattern 38a and the star-shaped first pattern 38b are clearly visible, but since the basic line drawing 35a is not formed in the star-shaped area corresponding to the first pattern 38b, only the first pattern 38b (basic line drawing 35b) is visible in the star-shaped area corresponding to the first pattern 38b.

In contrast, since the white space 40 is not formed in the star-shaped region of the first pattern 38b shown in FIG. 4(a) above, in the star-shaped region corresponding to the first pattern 38b, not only the basic line drawing 35b forming the first pattern 38b but also the basic line drawing 35a forming the base pattern 38a are seen combined together. Therefore, the first pattern 38b of the changing pattern 31b (FIG. 6(a)) can be made more clearly visible than the first pattern 38b of the changing pattern 31a (FIG. 4(a)).

In the above embodiment, changing patterns 31a and 31b are described that are composed of a base pattern 38a, a first pattern 38b, and a second pattern 38c. However, it goes without saying that a changing pattern in which the pattern changes depending on the viewing angle in three or more different ways can be created by adding a third pattern, a fourth pattern, etc. by adding more types of basic line drawings 35.

In addition, in the above embodiment, an example was described in which the concave stripes 41 were formed by short lines 32, but the length does not necessarily have to be short and may be set appropriately depending on the design of the changing pattern.

[Production method of cosmetics]
The method for producing a cosmetic product according to the embodiment will be described below with reference to Figures 9 to 11. Figure 9 is a flowchart of the method for producing a cosmetic product according to the embodiment of the present invention, Figure 10 is a schematic cross-sectional view showing the method for producing a cosmetic product according to the embodiment of the present invention, and Figure 11 is a schematic view showing a system for producing a cosmetic product according to the embodiment of the present invention.

[Master mold production process]
A master mold (not shown) for producing the elastic mold 5 is produced (step S1 in FIG. 9). Specifically, the master mold is produced as a metal mold by cutting, and the delicate shape parts corresponding to the above-mentioned changing patterns 31a and 31b are produced by engraving them with a laser processing machine, for example.

The master mold is formed with a line drawing that combines at least a first pattern 38b formed by an assembly of linear grooves 41b arranged in the same direction, and a second pattern 38c formed by an assembly of linear grooves 41c arranged in a different direction from the grooves 41b that constitute the first pattern 38b. Furthermore, the master mold may be formed with a line drawing that further combines a base pattern 38a formed by an assembly of linear grooves 41a arranged in a different direction from both the grooves 41b and the grooves 41c. In this way, the master mold is formed with a pattern (groove 41) that is the same as the desired changing patterns 31a, 31b to be formed on the surface 6a of the cosmetic 6 (see FIG. 10(f)).

[Elastic mold manufacturing process]
The master mold is used to manufacture the elastic mold 5 (step S2 in FIG. 9). Specifically, the elastic mold 5 is manufactured by compression molding using the master mold.

It is preferable to use an elastic material (such as silicone resin or rubber) for the material of the elastic mold 5 so that the desired shape (including the pattern) can be easily and neatly molded by bending the entire mold when demolding, as described below.

The surface 5a of the elastic mold 5 is formed with convex ridges (not shown) that correspond to the concave ridges 41 that constitute the changing patterns 31a, 31b formed on the master mold. The shape of the surface 5a (mold surface) of the elastic mold 5 corresponds to the changing patterns 31a, 31b that are desired as the surface design of the cosmetic 6 after molding (surface 6a of the cosmetic 6). According to the example shown in FIG. 10, the engaging portion 5b of the surface 5a of the elastic mold 5 is formed into a protruding shape so that it can abut against and enter the inner peripheral surface 3d of the surrounding member 3.

[Filling process]
10(a), 10(b) and 11(a), an elastic mold 5 is attached to the first opening 3b side of the surrounding member 3 made of thermoplastic resin, and the cosmetic material 6 is filled into the inside of the surrounding member 3 from the second opening 3c of the surrounding member 3 (step S3 in FIG. 9). This will be described in detail below.

The surrounding member 3 has an arbitrary outer peripheral shape configured to surround a predetermined range at a certain height. In this embodiment, the surrounding member 3 is a member that surrounds and holds the solidified cosmetic material 6 with its inner peripheral surface 3d. The surrounding member in the present invention is described as an example of a low-height frame-like member that can be stored in a flat and compact manner. The surrounding member 3 has a first opening 3b that is closed when the elastic mold 5 is attached, and a second opening 3c that is closed when the bottom member 4 described below is adhered. Ultimately, the surrounding member 3, together with the bottom member 4 that is adhered to the second opening 3c side, constitutes the container 2 (as an example, a middle plate).

The surrounding member 3 is provided with a positioning means on the second opening 3c side for bonding to the bottom member 4. In this embodiment, as shown in FIG. 10(a) etc., a recess 3a is provided on the end of the outer peripheral surface 3e of the surrounding member 3 on the second opening 3c side, and is configured to be able to fit into a protrusion 4b of the bottom member 4 described below.

The surrounding member 3 is preferably made of a thermoplastic resin so that it can be bonded to the bottom member 4 (described below) by ultrasonic welding, high frequency welding, or heat welding. However, the surrounding member 3 and the bottom member 4 may be bonded using other means (e.g., adhesive), and the material of the surrounding member in the present invention is not limited to a thermoplastic resin. Note that the surrounding member 3 may be formed into an elliptical or polygonal shape to prevent the cosmetic material 6 from rotating within the surrounding member 3 after solidification.

The elastic mold 5 is attached to the surrounding member 3 by inserting the engaging portion 5b on the surface 5a of the elastic mold 5 into the first opening 3b of the surrounding member 3 while abutting against the inner peripheral surface 3d (see FIG. 10(a)), and the surrounding member 3 is supplied to the upstream supply point P2 of the conveyor 12 of the filling device 11 (see FIG. 11(a)). The conveyor 12 is driven by a driving means (not shown) according to preset driving conditions.

Next, the cosmetic material 6 is filled inside the surrounding member 3 attached to the elastic mold 5 (see FIG. 10(b)). The cosmetic material 6 is supplied from the nozzle 13a and filled into the space surrounded by the surface 5a of the elastic mold 5 and the inner peripheral surface 3d of the surrounding member 3 from the second opening 3c side of the surrounding member 3. More specifically, the cosmetic material 6 (bulk) as an oil-based solid cosmetic material in a fluid state that has been heated and melted at a predetermined temperature in advance is placed in the hopper 13 of the filling device 11 after being subjected to a process such as degassing, and this cosmetic material 6 is filled from the nozzle 13a in a constant amount (i.e., an amount corresponding to the volume of the space surrounded by the surface 5a of the elastic mold 5 and the inner peripheral surface 3d of the surrounding member 3) into the elastic mold 5 to which the surrounding member 3 is attached, which is flowing by the conveyor 12 (see FIG. 11(a)). In addition, in order to keep the cosmetic material 6 in a fluid state, the hopper 13 and nozzle 13a can be heated to a predetermined temperature.

The cosmetic material 6 filled into the elastic mold 5 and the surrounding member 3 is subjected to a reheating process in the heating section 14 of the filling device 11 shown in FIG. 11(a). This makes it possible to eliminate unevenness on the surface of the cosmetic material 6, and obtain a smooth surface 6b (see FIG. 10(c)). As an example of the heating section 14, an electric heating wire or the like may be used. It is preferable to set the reheating time short so that the surrounding member 3 made of thermoplastic resin does not melt. Note that the implementation of the reheating process is optional.

As described above, the cosmetic material 6 in a fluid state is filled through the large second opening 3c of the surrounding member 3, so that the cosmetic material 6 can easily reach every corner of the elastic mold 5, improving quality and increasing yield.

[Solidification process]
As shown in FIG. 10(c) and FIG. 11(a), the cosmetic material 6 filled in the filling step is solidified (step S4 in FIG. 9).

The cosmetic material 6 (see FIG. 10(c)) filled into the elastic mold 5 and the surrounding member 3 is moved to the cooling section 15 by the conveyor 12 of the filling device 11 shown in FIG. 11(a), where it is cooled to a set temperature and solidified.

As shown in FIG. 11(a), the cooling unit 15 as the solidification device in this embodiment is equipped with any cooling means, and performs a cooling process on the object to be cooled that is moved by the conveyor 12. In order to improve the cooling effect of the cooling unit 15, it is preferable to cover the cooling area of the cooling unit 15 with a cover 16.

In this embodiment, an example in which the cooling unit 15 as a cooling device is configured integrally with the filling device 11 has been described, but it goes without saying that the filling device 11 and the cooling unit 15 as a cooling device may be configured separately. In addition, the solidification process (step S4 in FIG. 9) in this embodiment is not limited to the process of performing a cooling treatment as described above, as long as the cosmetic material 6 filled into the elastic mold 5 and the surrounding member 3 is solidified, and may be, for example, a cooling process in which the object to be cooled is left to cool to room temperature, and is not particularly limited.

The cosmetic material 6 solidified by the cooling section 15 is conveyed away together with the elastic mold 5 and the surrounding member 3 at the collection point P3 of the conveyor 12 shown in FIG. 11(a).

As shown in FIG. 10(d), after the elastic mold 5 and the surrounding member 3 filled with the cosmetic 6 and solidified are conveyed out of the filling device 11, the surrounding member 3 and the cosmetic 6 are removed from the surface 5a of the elastic mold 5. As a result, the cosmetic 6 on the first opening 3b side of the surrounding member 3 has a surface 6a with changing patterns 31a, 31b molded to correspond to the shape of the surface 5a of the elastic mold 5. On the other hand, on the second opening 3c side of the surrounding member 3, the cosmetic 6 has a smooth surface 6b that is flush with the end of the second opening 3c side of the surrounding member 3.

[Bonding process]
After the cosmetic material 6 is solidified by the solidification step (solidification device), as shown in Fig. 10(d), (e) and Fig. 11(b), a bottom member 4 made of a thermoplastic resin that closes the second opening 3c of the surrounding member 3 is adhered to the surrounding member 3 (step S5 in Fig. 9). In the adhesion step, the bottom member 4 is adhered to the end of the surrounding member 3 on the second opening 3c side. More preferably, in the adhesion step (adhesion device), the bottom member 4 is adhered to the entire periphery of the end of the surrounding member 3 on the second opening side 3c.

In this embodiment, the bottom member 4 has a smooth portion 4a for closing the second opening 3c of the surrounding member 3, and is shaped to correspond to the outer peripheral shape of the surrounding member 3, but is not particularly limited as long as it has a shape that can close the second opening 3c of the surrounding member 3. Ultimately, the bottom member 4 and the surrounding member 3 form the container 2 (see FIG. 10(f)).

The bottom member 4 is provided with a positioning means for bonding with the second opening 3c of the surrounding member 3. In this embodiment, as shown in FIG. 10(d), a protrusion 4b is provided on the periphery of the bottom member 4, and is configured to be able to fit into the recess 3a of the surrounding member 3.

The bottom member 4 is preferably made of a thermoplastic resin so that it can be bonded to the surrounding member 3 by ultrasonic welding, high frequency welding, or heat welding. However, the surrounding member 3 and the bottom member 4 may be bonded by other means (e.g., adhesive), and the material of the bottom member 4 in the present invention is not limited to a thermoplastic resin.

The bottom member 4 is bonded to the surrounding member 3 using a bonding device 17 shown in FIG. 11(b). The bonding device 17 mainly includes a turntable 18 and a bonding machine 19. The turntable 18 includes, as an example, four stations 18a to 18d, each of which can be rotated counterclockwise by a driving means (not shown). The rotation direction of the turntable 18 is not limited to counterclockwise, but may be clockwise, and a conveying means other than a turntable (e.g., a conveyor) may be used. Furthermore, in this embodiment, a bonding device 17 including a turntable 18 is described as an example, but it is sufficient that the bonding device includes at least the bonding machine 19.

At the station at position A in FIG. 11(b), the surrounding member 3 is supplied with the bottom member 4 fitted into the second opening 3c of the surrounding member 3 (see FIG. 10(e)). Similarly, at the station at position C, the bonding process between the bottom member 4 and the surrounding member 3 is carried out, and at the station at position D, the bonded bottom member 4 and surrounding member 3 (container 2; see FIG. 10(f)) are discharged. The station at position B is used as a waiting zone immediately prior to the bonding process.

Each of stations 18a to 18d is provided with a holder (not shown) capable of holding the surrounding member 3 and the bottom member 4. When bonding the surrounding member 3 and the bottom member 4, it is preferable that the surrounding member 3 and the bottom member 4 are held by the holder of each station at position A shown in FIG. 11(b). In this embodiment, the bonding between the surrounding member 3 and the bottom member 4 is described as being performed with the first opening 3b of the surrounding member 3 facing downward as an example, but it may also be performed with the first opening 3b of the surrounding member 3 facing upward.

The process flow in the bonding device 17 is as follows, focusing on one station.
(1) The surrounding member 3 and the bottom member 4 are held by the holder of the station located at position A shown in FIG. 11(b) (see FIG. 10(e)).
(2) The turntable 18 rotates, the station moves to position B, and preparation for the bonding process is completed.
(3) When the turntable 18 rotates and the station moves to position C, the bonding machine 19 carries out a bonding process on the surrounding member 3 and the bottom member 4 .
(4) Next, the turntable 18 rotates and the station moves to position D, whereupon the bonded surrounding member 3 and bottom member 4 (container 2; see Figure 10 (f)) are ejected onto the ejection slider 20 by an ejection means (not shown) and collected onto the collection tray 21.
(5) The turntable 18 rotates, the station moves to position A, and the process from (1) above is repeated.

In this embodiment, the bonding machine 19 in the bonding device 17 is preferably configured as an ultrasonic welder. As is already known, the ultrasonic welder only needs to have a predetermined configuration, such as an oscillator, a vibrator, and a horn, and a detailed description will be omitted.

When using such an ultrasonic welding machine, the surface of the bottom member 4 and the surrounding member 3 generates very little heat, and the joint P1 (see Figure 10 (e)) between the surrounding member 3, which is made of thermoplastic resin, and the bottom member 4 is instantly melted and bonded by the frictional heat and pressure generated by the ultrasonic vibrations.

As shown in FIG. 11, a manufacturing system 10 for cosmetics 1 is configured, which includes a filling device 11 that fills the inside of a thermoplastic resin surrounding member 3 that is attached to an elastic mold 5 that can be molded into a desired shape with cosmetic material 6, a cooling unit 15 that acts as a solidification device that solidifies the cosmetic material 6 filled by the filling device 11, and an adhesion device 17 that adheres a thermoplastic resin bottom member 4 that closes the second opening 3c of the surrounding member 3 to the surrounding member 3 after the cosmetic material 6 has been solidified by the cooling unit 15.

In addition, instead of the above-described filling step (step S3), solidifying step (step S4), and bonding step (step S5), a method known as hot back, which has been widely used in the past, may be adopted. That is, two holes (a filling hole and an air hole) are provided in advance on the bottom surface of a cylindrical container (not shown), the container is attached to the elastic mold 5 with the inside of the container facing the mold surface, and a cosmetic material that has been heated to a molten state is filled into the internal space surrounded by the elastic mold 5 and the inner surface of the container through the filling hole of the container, and after the cosmetic material has solidified, the elastic mold 5 is removed, thereby obtaining a cosmetic material having a changing pattern that corresponds to the mold surface.

The present invention has been described with reference to the above embodiment, but the present invention is not limited to the above embodiment, and improvements or modifications are possible within the scope of the purpose of improvement or the concept of the present invention.

REFERENCE SIGNS LIST 1 Cosmetic 2 Container 3 Surrounding member 3a Recess 3b First opening 3c Second opening 3d Inner peripheral surface 3e Outer peripheral surface 4 Bottom member 4a Smooth portion 4b Protrusion 5 Elastic mold 5a Surface (mold surface)
5b Engagement section 6 Cosmetic material 6a, 6b Surface 10 Cosmetic manufacturing system 11 Filling device 12 Conveyor 13 Hopper 13a Nozzle 14 Heating section 15 Cooling section (solidification device)
16 Cover 17 Bonding device 18 Turntable 18a, 18b, 18c, 18d Station 19 Bonding machine 20 Discharge slider 21 Collection tray 31a, 31b Changing pattern 32 (32a, 32b, 32c) Short line 33 Distance between short lines 34 (34a, 34b, 34c) Broken line arrangement 35 (35a, 35b, 35c) Basic line drawing 36a, 36b, 36e, 36d Pattern line drawing 38a Design (base design)
38b Design (first design)
38c Design (2nd design)
39a, 39b, 39c, 39d Unit pattern 40 White 41 (41a, 41b, 41c) Concave stripe A to D Position P1 Bonding portion P2 Supply point P3 Recovery point d1 Distance between short lines in the straight line direction d2 Distance between short lines in the width direction of the short lines d3 Depth of concave stripe (short line) l Length of concave stripe (single line) w Width of concave stripe (short line) θ1, θ2 Angle of short line

Claims (6)

A solid cosmetic having a pattern on its surface,
the pattern is a line drawing obtained by combining a first pattern formed by a collection of linear concave stripes arranged in the same direction and a second pattern formed by a collection of linear concave stripes arranged in a direction different from that of the concave stripes constituting the first pattern ,
The width of the groove is from 1 μm to 0.5 mm;
A solid cosmetic preparation, characterized in that the depth of the grooves is 0.05 mm to 0.2 mm . 2. The solid cosmetic product according to claim 1, wherein the grooves constituting the first pattern and the grooves constituting the second pattern are arranged in a dashed line at intervals in a linear direction and spaced apart in a width direction of the grooves. 3. The solid cosmetic product according to claim 1, wherein the pattern is a line drawing further synthesized from a base pattern formed by an assembly of linear grooves arranged in a different direction from both the grooves constituting the first pattern and the grooves constituting the second pattern. 4. The solid cosmetic material according to claim 1, wherein the distance between adjacent grooves arranged in the same direction is 0.5 mm or less. 5. The solid cosmetic product according to claim 1, wherein the length of the grooves is from 0.07 mm to 0.6 mm. A method for producing a solid cosmetic having a pattern on its surface, comprising the steps of:
A process of producing a master mold on which a line drawing is formed by combining a first pattern formed by a collection of linear concave stripes arranged in the same direction and a second pattern formed by a collection of linear concave stripes arranged in a direction different from that of the concave stripes constituting the first pattern;
using the master mold to fabricate an elastomeric mold having a mold surface corresponding to the pattern;
filling and solidifying a cosmetic material using the elastic mold;
having
A method for producing a solid cosmetic product, wherein the width of the grooves is from 1 μm to 0.5 mm, and the depth of the grooves is from 0.05 mm to 0.2 mm .

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