JPH0692090A - Film having uneven pattern and manufacture thereof - Google Patents

Abstract

PURPOSE:To manufacture a film having uneven pattern at low cost by forming uneven pattern on one face of a synthetic resin film, filling recessed parts with curing synthetic resin, and forming a transferring coloring layer on other face of the synthetic resin film such that the whole area will have the same color. CONSTITUTION:An uneven pattern 2 is formed on one face of a synthetic resin film 1 and recessed parts 2a are filled with an ultraviolet setting resin 3, which is cured by irradiation of ultraviolet rays. On other face of the synthetic resin film 1, a surface finishing agent layer 4 is printed on parts corresponding to the recessed parts 2a of the uneven pattern 2 such that the whole area will have the same color so as to obtain a film 5 having uneven pattern. Thereafter, in a molding die 12 consisting of an upper die 10 and a lower die 11, the film 5 having uneven pattern is set and the die 12 is filled with a synthetic resin 13, so that a plastic molded piece 14 having the surface finishing agent layer 4 formed on the bottom face of the recessed parts 15a of the uneven pattern 15 can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film with a concavo-convex pattern in which one surface has a concavo-convex pattern and a predetermined portion (concave or convex part of the concavo-convex pattern) on the other surface is colored, and a method for producing the film. is there.

[0002]

2. Description of the Related Art Recently, compacts for accommodating cosmetics such as foundations and eye shadows have been diversified to meet the needs of consumers. For example, there are those in which a design is printed on the surface of the container and those in which an uneven pattern is formed on the surface. However, the compact having the above-mentioned pattern has a poor three-dimensional effect, and the compact having the uneven pattern has a three-dimensional effect but a poor color. Therefore, a compact with a concavo-convex pattern having a concavo-convex pattern on the surface and colored concave or convex portions of the concavo-convex pattern is conceivable, which is a combination of both compacts. As a method of manufacturing the compact having an uneven pattern, a method of forming a container having an uneven pattern on the surface in advance and coloring the top surface of the convex portion of the uneven pattern of the container by printing is considered.

[0003]

However, when the compact with the uneven pattern is manufactured by the above method, it is difficult to print on the rising portion of the convex portion, and the color protrudes or shifts from the convex portion of the uneven pattern. . There is also a method of coloring the concave portion of the container having an uneven pattern with ink or the like, but it has a problem that it takes time and costs increase. On the other hand, as shown in FIG.
In a mold 21 having an upper and lower molds and having an uneven pattern 20,
There is a method in which a film 23 on which the ink layer 22 is formed is arranged and a molding material is filled in that state to mold a molded product. However, in this method, the ink layer 22 is easily displaced from the concave-convex pattern 20 of the molding die 21 due to stretching of the film 23, and the pattern of the film 23 can be easily changed especially when the shape of the molding die 21 is a curved surface. It has a problem that it can not be done.

Therefore, the present applicant has filed Japanese Patent Application No. 3-3547.
No. 72 (filed on December 18, 1991) was proposed. As shown in FIG. 12, first, as shown in FIG. 12, a UV curable resin 26 is filled in the concave pattern 25a on the upper surface of the molding die 25, and then a polyester film 27 is placed on the upper surface, Then, the ultraviolet curable resin 26 is cured by irradiating it with ultraviolet rays, whereby a film 27 having an uneven pattern on its surface is manufactured. After that, FIG.
As shown in FIG. 3, a release layer 29 made of a release agent is formed on the surface of the uneven pattern 28 of the film 27, and the release layer 29 is formed.
The surface finish material layer 30 made of ink is printed on the convex portions 28a of the unevenness pattern 28, and then the adhesive layer 31 is formed on the surface finish material layer 30 to manufacture the uneven textured film 32. . Then, as shown in FIG. 14, the film 32 with the concavo-convex pattern obtained in this manner is used as a lower mold 3 of a mold 37 composed of an upper mold 35 and a lower mold 36.
After arranging with the back surface of the film 27 facing the bottom surface of 6,
As shown in FIG. 15, by closing the upper mold 35 and the lower mold 36, A
The BS resin 38 is filled in the molding die 37 to mold a compact with an uneven pattern. According to this method, by filling the molding die 37 with the ABS resin 38, the back surface of the film 27 adheres to the bottom surface of the molding die 37, and
AB is formed on the concave portion 28b of the uneven pattern 28 of the film 27.
The S resin 38 is filled. Therefore, when the molding die 37 is opened, as shown in FIG. 16, a compact 40 with a concavo-convex pattern in which the surface finish material layer 30 is formed on the bottom surface of the concave portion 41 a of the concavo-convex pattern 41 by the action of the adhesive layer 31 is obtained. .

According to the above-mentioned method, the uneven pattern 28 is formed on the surface, and the film 27 having the surface finishing material layer 30 made of ink printed on the convex portion 28a of the uneven pattern 28 is placed on the molding die 37. Just put it on the surface and the uneven pattern 4
1 is formed, and the bottom surface of the concave portion 41a is colored with the surface finish material layer 30 to easily obtain the compact 40 with an uneven pattern. Further, the compact 40 with an uneven pattern obtained in this manner is accurately colored with the surface finish material layer 30 in accordance with the concave portions 41 a of the uneven pattern 41.

However, according to the above method, in order to manufacture the film 27 having the uneven pattern 28, the uneven pattern 2 is used.
Since the molding die 25 having the 5a formed therein is used, there is a drawback that the manufacturing cost becomes high.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an uneven patterned film having a low manufacturing cost and a manufacturing method thereof.

[0008]

In order to achieve the above-mentioned object, the present invention has a concavo-convex pattern formed on one surface of a synthetic resin film, and the concave part of the concavo-convex pattern on this one surface is filled with a cured synthetic resin, A first aspect of the present invention is a film with an uneven pattern, in which a colored layer for transfer is formed on the other surface (A) or (B) so that the color is changed for each predetermined area or all areas have the same color. And forming a concavo-convex pattern on one surface of the synthetic resin film by pressing, etc., filling the concave portion of the concave-convex pattern on this one surface with synthetic resin, and then curing the synthetic resin filled in the concave portion, The method for producing a film with an uneven pattern in which a colored layer for transfer is formed on the other surface (A) or (B) by changing the color for each predetermined area or so that all areas have the same color Use as a summary. (A) A portion corresponding to the convex portion of the uneven pattern. (B) A portion corresponding to a concave and convex portion.

[0009]

That is, according to the method for producing a film with a concavo-convex pattern of the present invention, a concavo-convex pattern is formed on one surface of a synthetic resin film by press working, and the concave portion of the concavo-convex pattern on this one surface is filled with synthetic resin, and then the concave portion is formed. The filled synthetic resin is cured, and then a colored layer for transfer is applied to (A) or (B) on the other surface of the synthetic resin film by changing the color in predetermined areas or making the entire area the same color. Is formed.
As a result, a concavo-convex pattern is formed on one surface, and the color layer for transfer is changed to a predetermined area (concave or convex portion of the concavo-convex pattern) on the other surface, or the entire area has the same color. Thus, the uneven patterned film can be obtained. Thus, in the production method of the present invention, in order to produce a film having an uneven pattern, the synthetic resin film is directly subjected to the uneven pattern by mechanical processing such as pressing, and then the concave part of the uneven pattern is filled with the synthetic resin. So that it hardens. Therefore, the manufacturing cost is lower than that of a conventional example that uses a mold having an uneven pattern to manufacture a film having an uneven pattern. Then, in the case of producing an uneven patterned compact or the like using the uneven patterned film of the present invention, for example, the uneven pattern surface is arranged upward on the bottom surface of the injection mold of the film,
In that state, the molding die is closed and the raw material is filled and molded, and by removing the uneven patterned film from the obtained compact, an uneven pattern is formed on the surface, and the concave portion or the convex portion is a colored layer of the film. A compact colored by transfer is obtained.

Next, examples will be described.

[0011]

EXAMPLE FIG. 1 shows a cross-sectional view of an example of an uneven patterned film of the present invention. That is, in the figure, 1 is a synthetic resin film (for example, a transparent polyethylene film having a thickness of 50 μm to 100 μm), 2 is a concavo-convex pattern formed on one surface of the film 1, and 3 is a concavity 2 of the concavo-convex pattern 2.
Urethane acrylic resin, epoxy acrylic resin, silicone acrylic resin, etc., which are filled in the area a
Reference numeral 4 denotes a surface finishing material layer formed on the other surface of the synthetic resin film 1 in the concave portion 2a of the uneven pattern 2.

The uneven patterned film is manufactured, for example, as follows. First, as shown in FIG. 2, the synthetic resin film 1 is formed by pressing the synthetic resin film 1.
The uneven pattern 2 is formed on one surface. Then, as shown in FIG. 3, the ultraviolet curable resin 3 is poured into the concave portion 2a of the concave-convex pattern 2. Next, ultraviolet rays are irradiated to cure the ultraviolet curable resin 3, and then the film 1
A surface finishing material layer 4 made of ink is printed on the other surface of the concave portion 2a of the concave-convex pattern 2 by screen printing or the like so that all areas have the same color. In this way, the target film 5 having an uneven pattern is obtained.

As shown in FIG. 4, the uneven patterned film 5 obtained as described above is formed on one surface of the film 5 on the bottom surface of the lower mold 11 of the mold 12 including the upper mold 10 and the lower mold 11. The concavo-convex pattern 2 thus formed is arranged facing upward. Next, the lower mold 11 and the upper mold 10 are closed, and ABS resin is molded into the mold 1.
2 is filled and molded, as shown in FIG. 5, the injection pressure of the resin 13 and the heat at the time of molding (in this case, the ABS resin 13
The surface of the film 5 and the surface of the ultraviolet curable resin 3 are brought into close contact with the bottom surface of the molding die 12 by the temperature of 210 ° C.), and the uneven pattern 2 of the film 5 is filled with the ABS resin 13. After molding in this way, when the molding die 12 is opened, as shown in FIG. can get.

According to the above manufacturing method, the synthetic resin film 1 is subjected to mechanical processing such as pressing to form the uneven pattern 2, so that the uneven patterned film 5 can be manufactured at low cost. Further, the uneven pattern 15 is formed on the surface only by placing the uneven pattern film 5 obtained as described above on the molding die 12, and the surface finish made of ink is formed on the bottom surface of the concave part 15 a of the uneven pattern 15. The molded product 14 on which the material layer 4 is printed can be manufactured at low cost. Further, the molded product 14 obtained in this manner has the concave portions 15a of the uneven pattern 15.
In accordance with the above, the surface finish material layer 4 is accurately colored.

The above is a case in which a concavo-convex pattern is formed on one surface of the synthetic resin film, and a colored layer is applied to a predetermined portion (a portion corresponding to the concave portion of the concavo-convex pattern) on the other surface. As shown in FIG. On the other surface of the synthetic resin film 1, the colored layer 4 is applied to a portion corresponding to the concave portion 2a of the concave-convex pattern 2 and the convex portion 2b between the concave portions 2a, and otherwise, the same treatment as described above (FIG. 8). ), The plastic molded product 1 shown in FIG.
4, that is, a plastic molded product 14 such as a cosmetic compact having an uneven pattern in which the convex top surface 15b is colored by the colored layer 4 is obtained.

As shown in FIG. 10, the film 5 with the uneven pattern wound around a roll is formed into the upper mold 16 of the molding mold 18.
By automatically supplying and winding the lower mold 17, the plastic molded product can be continuously manufactured.

Further, in the above embodiment, the ultraviolet curable resin 3 is poured into the concave portion 2a of the uneven pattern 2 formed on the synthetic resin film 1, and the ultraviolet curable resin 3 is cured by irradiating it with ultraviolet rays. I try to
The present invention is not limited to this, and the concave portion 2 of the concave-convex pattern 2 is not limited to this.
A vinyl chloride resin in a paste form may be poured into the portion a and heated by a burner or the like to cure the vinyl chloride resin. In addition, the above ultraviolet curable resin,
An electric ray curable resin may be used instead of the vinyl chloride resin.

Further, in the above embodiment, the surface finish material layer 4 is printed with the same color, but the present invention is not limited to this, and the surface finish is achieved by changing the color of the ink for each predetermined area. The material layer 4 may be printed.

[0019]

As described above, according to the manufacturing method of the present invention,
In order to manufacture a film having an uneven pattern, a synthetic resin film is directly provided with an uneven pattern by mechanical processing such as pressing, and then the concave part of the uneven pattern is filled with a synthetic resin and cured. Therefore, like the conventional example,
The manufacturing cost is lower than that of using a mold having an uneven pattern to manufacture a film having an uneven pattern. Then, in the case of manufacturing a compact with uneven pattern using the uneven film of the present invention, for example, the film is arranged on the bottom surface of the injection molding die with the uneven surface facing upward, and the molding die in that state. By closing and filling with the raw material, and peeling the film with the uneven pattern from the obtained compact, an uneven pattern is formed on the surface, and the recesses or protrusions are colored by the transfer of the colored layer of the film. Compact size is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a manufacturing process of the above embodiment.

FIG. 3 is an explanatory diagram of a manufacturing process of the above embodiment.

FIG. 4 is an explanatory diagram of a process of manufacturing a molded product using the above example.

FIG. 5 is an explanatory diagram of a process of manufacturing a molded product using the above example.

FIG. 6 is an explanatory view of a molded product manufactured by using the above-mentioned embodiment.

FIG. 7 is a sectional view showing another embodiment of the present invention.

FIG. 8 is an explanatory diagram of a process of manufacturing a molded product using the other embodiment.

FIG. 9 is an explanatory diagram of a molded product manufactured using the other embodiment.

FIG. 10 is an explanatory view of another manufacturing method using the present invention.

FIG. 11 is an explanatory diagram of a conventional manufacturing process.

FIG. 12 is an explanatory view of a manufacturing process of a conventional film with an uneven pattern.

FIG. 13 is an explanatory view of a manufacturing process of a conventional film with a textured pattern.

FIG. 14 is an explanatory diagram of a process of manufacturing a molded product using a conventional film with a textured pattern.

FIG. 15 is an explanatory diagram of a process for producing a molded product using a conventional film with a textured pattern.

FIG. 16 is an explanatory diagram of a molded product manufactured using a conventional film with a textured pattern.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic resin film 2 Concavo-convex pattern 2a Recess 3 UV curable resin 4 Surface finishing material layer

Claims (3)

[Claims] 1. A synthetic resin film having a concavo-convex pattern formed on one surface, the concave portion of the concavo-convex pattern on the one surface is filled with a cured synthetic resin, and a colored layer for transfer is provided on (A) or (B) on the other surface. Is formed by changing the color for each predetermined area or so that all areas have the same color. (A) A portion corresponding to the convex portion of the uneven pattern. (B) A portion corresponding to a concave and convex portion. 2. The uneven patterned film according to claim 1, wherein the cured resin is an ultraviolet curable resin cured by irradiation with ultraviolet rays. 3. A synthetic resin film is provided with a concavo-convex pattern on one surface by pressing or the like, the concave portion of the concavo-convex pattern on this one surface is filled with synthetic resin, and then the synthetic resin filled in the concave portion is cured, (A) on the other side of the synthetic resin film
Alternatively, in (B), a colored layer for transfer is formed by changing a color for each predetermined area or so that all areas have the same color, and a method for producing a film with an uneven pattern. (A) A portion corresponding to the convex portion of the uneven pattern. (B) A portion corresponding to a concave and convex portion.