JPH06118628A - Transfer film with rugged pattern and its production - Google Patents

Abstract

PURPOSE:To exactly color rugged patterns by forming the rugged patterns on one surface of a synthetic resin film and forming colored layers for transfer in the parts of the other surface in such a manner that the colors are changed in each of prescribed regions or all the regions have the same color. CONSTITUTION:A film 15 is disposed on the base of the lower mold 23 of molds 24 consisting of an upper mold 22 and the lower mold 23 by downward positioning the rugged patterns 20 formed on one surface of the film 7. The peak surfaces of the projecting parts 2a of the transfer film 15 with the rugged patterns attain the state of coming into tight contact with the base of the lower mold 23 and further the film 15 in the parts of the recessed parts 2b of the rugged patterns 20 attains the state of coming into tight contact with the base of the lower mold 23 by the injection pressure of an ABS resin and the heat at the time of molding when the ABS resin is packed into the moles 24 and is molded after the lower mold 23 and the upper mold 22 are closed. The plastic molded articles, i.e., the plastic molded articles, such as compact for cosmetics, having the rugged patterns which are distinctly colored on the bases of the recessed parts by the colored layers 14 are obtd. when the molds are opened after the molding in such a manner.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Recently, various types of 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 with the above design,
The compact that lacks three-dimensional effect and has the above-mentioned uneven pattern,
Although it has a three-dimensional effect, it has the drawback of being poor in 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 described above. 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 a concave-convex 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 concave-convex 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 molding die 51 composed of upper and lower dies and having an uneven pattern 50,
There is a method in which a film 53 having an ink layer 52 formed thereon is placed, and a molding material is filled and molded. However, in this method, the ink layer 52 is easily displaced from the uneven pattern 50 of the molding die 51 due to stretching of the film 53, and the film 5
The pattern change of No. 3 has a problem that it cannot be easily performed especially when the shape of the molding die 51 is a curved surface. For this reason, it has been difficult to manufacture a compact with an uneven pattern rich in colors by the conventional manufacturing method.

The present invention has been made in view of the above circumstances, and a transfer film with an uneven pattern, in which a concave or convex portion having an uneven pattern is accurately colored, which allows easy production of a molded product with an uneven pattern, is provided. And the provision of the manufacturing method thereof.

[0005]

In order to achieve the above object, the present invention provides a synthetic resin film with a concavo-convex pattern made of a synthetic resin formed on one surface of the synthetic resin film by transfer using a concave portion or a convex portion of a transfer machine base. A coloring layer for transfer is formed on at least one of the other surface portions (A) and (B) of the synthetic resin film so that the color is changed every predetermined area or all areas have the same color. A transfer film with a concavo-convex pattern, which is characterized by the above, is provided as a first gist, and a rotary drum having a concave pattern formed on an outer peripheral surface thereof is prepared, and a paste-like synthetic resin is placed in the concave part of the concave pattern of the rotary drum. The synthetic resin film is filled and brought into contact with the outer peripheral surface of the rotary drum in synchronism with the rotation of the rotary drum while rotating the rotary drum, and the paste-like synthetic resin filled in the recesses is cured to allow the above-mentioned mixture to occur. Integrated with the resin film, then,
By separating the synthetic resin film from the rotary drum, the cured synthetic resin is peeled off from the recesses to form a concavo-convex pattern on one surface of the synthetic resin film, and the other surface portion (A) or (B). (2) A method for producing a transfer film with an uneven pattern is obtained by forming a colored layer for transfer on a predetermined area by changing the color for each predetermined area or so that all areas have the same color. And

[0006]

According to the present invention, for example, a rotating drum having a concave pattern formed on the outer peripheral surface thereof is used, and the concave pattern is filled with an uncured paste-like synthetic resin while rotating the drum.
One surface of a synthetic resin film such as a belt is brought into contact with the outer peripheral surface of the rotary drum, for example, in a state of being synchronized with rotation of the rotary drum. Then, the synthetic resin in the concave pattern is cured and integrated on one surface of the synthetic resin film, and then the synthetic resin film is separated from the outer peripheral surface of the rotary drum, and the synthetic resin in the concave pattern is made to be synthetic resin film. It is transferred in a convex pattern on one surface. Next, on the other surface of the synthetic resin film, at least one of the convex portion of the convex pattern and the concave portion between the convex portion and the convex portion, a color layer is changed in each predetermined region by screen printing or the like. By forming such that all areas have the same color, a convex pattern (made of synthetic resin) is formed on one surface, and a predetermined portion on the other surface (a portion corresponding to the convex portion and the convex portion). The uneven transfer pattern-provided transfer film in which a colored layer is formed in at least one of the recesses between the projections and the projections is manufactured. As described above, according to the present invention, since the rotary drum having the concave pattern formed on the outer peripheral surface is used to form the convex pattern made of the synthetic resin on one surface of the synthetic resin film,
It is possible to form a thick convex pattern and also to continuously form a convex pattern. Further, since the uneven pattern is transferred and formed by using the concave or convex portion of the transfer machine base, the uneven pattern transferred and formed on the film by accurately forming the concave or convex portion of the transfer machine base. Will be accurate. Furthermore, since the colored layer formed on the other surface of the synthetic resin film can be formed by screen printing or the like as described above, it is possible to realize rich colors and patterns. When an injection-molded article such as a compact with an uneven pattern is manufactured using the obtained film, for example, the above-mentioned film is arranged on the bottom surface of the injection molding die with the uneven surface facing downward, and the mold is molded in that state. Close the mold to fill the raw material, and peel the transfer film with an uneven pattern from the obtained compact, an uneven pattern is formed on the surface,
A compact is obtained in which at least one of the concave portion and the convex portion is colored by transferring the colored layer of the film.

Next, the present invention will be described in detail based on examples.

[0008]

EXAMPLES FIG. 1 is an explanatory view showing the production of a transfer film with an uneven pattern according to the present invention. In the figure, reference numeral 1 is a hollow rotary drum which is rotated in the direction of the arrow by a motor (not shown), and a concave portion 2 for forming various concave-convex patterns, characters and symbols is formed on the outer peripheral surface thereof. In this recess 2, a paste-like UV-curable resin 4 (urethane acryl-based, epoxy acryl-based, silicon acryl-based, etc.) housed in a storage tank 3 provided on the lower side of the rotary drum 1 is provided. Supplied. The supply is performed by the application roller 5 that rotates by receiving the rotational force of the rotary drum 1. The coating roller 5 is composed of a lower roller 5a and an upper roller 5b. The upper roller 5b comes into contact with the rotating drum 1 and is rotated together, and the lower roller 5a receives its rotational force to rotate in the storage tank 3. An ultraviolet curable resin 4 is attached to the outer periphery of the rotary drum 1, and the upper roller 5b receives the resin 4 and attaches it to the outer peripheral surface of the rotary drum 1. A part of the pasted ultraviolet ray-curable resin 4 adhered enters between the recesses 2 of the rotary drum 1, and the rest exists on the other surface portion. The remaining portion of the paste-like ultraviolet curable resin 4 is scraped off by the rotation of the rotary drum 1 with a doctor knife 6 fixed on the front side with respect to the rotating direction of the rotary drum 1. Around the outer peripheral portion of the rotary drum 1 on the rotational direction side of the doctor knife 6, a rotatable roller 7a is wound around and a thickness of 25 to 1 is drawn by the winding force of the winding roller 16.
00 micron PET (polyethylene terephthalate)
A transparent synthetic resin film 7 such as a film or a PVC (vinyl chloride resin) film is pressed by the action of the pressing roll 9. An adhesive layer 8 is formed on the surface of the synthetic resin film 7 (the surface in contact with the rotary drum 1). Then, when the synthetic resin film 7 is pressed by the pressing roll 9, the paste-like ultraviolet curable resin 4 filled in the recess 2 of the rotary drum 1 is adhered to the surface of the synthetic resin film 7 in an uncured state. Adhere via layer 8. Then, as shown in the drawing, the ultraviolet ray irradiation lamp 10 irradiates the synthetic resin film 7 with ultraviolet rays, so that the ultraviolet curable resin 4 in the recess 2 is cured and integrated with the synthetic resin film 7. Next, the synthetic resin film 7 is reversely peeled off via the peeling roll 11, so that the ultraviolet curable resin 4 in the recess 2 is peeled from the recess. As a result, the convex pattern 2a formed in the recess 2 of the rotary drum 1 is transferred to the surface of the synthetic resin film 7. The transfer film with the uneven pattern thus obtained is sent to the lower side of the silk screen plate 12 for multicolor printing by the winding force of the winding roller 16.

This silk screen plate 12 is in contact with the other surface of the synthetic resin film having a concavo-convex pattern formed on one surface (the surface opposite to the surface on which the convex pattern is formed), and a predetermined portion of the other surface (the convex part of the convex pattern is formed). The corresponding portion) is printed with printing ink to form a printing ink layer 14. Reference numeral 13 is a squeegee that pushes out the printing ink from the silk screen plate 12. And the convex pattern 2a on one surface, the other surface (the portion corresponding to the convex pattern)
The transfer film 15 with a concavo-convex pattern of the present invention, on which the printing ink layer 14 is formed, is wound up by the winding roller 16. The take-up roller 16 is rotationally driven in a state of being synchronized with the rotary drum 1. FIG. 2 shows the transfer film 15 with the uneven pattern of the present invention.

This film 15, as shown in FIG.
The concavo-convex pattern 20 formed on one surface of the film 7 is arranged downward on the bottom surface of the lower mold 23 of the molding mold 24 including the upper mold 22 and the lower mold 23. Next, the lower mold 23 and the upper mold 22 are closed, and the ABS resin 25 is filled in the molding die 24. As shown in FIG. 4, the injection pressure of the resin and the heat during molding (in this case, the temperature of the ABS resin). Is 210 degrees), the top surface of the convex portion 2a of the transfer film 15 with an uneven pattern is brought into close contact with the bottom surface of the lower mold 23, and the concave portion 2b of the uneven pattern 20 is further formed.
The film 15 in the area of (3) comes into close contact with the bottom surface of the lower mold 23. After molding in this manner, when the mold is opened, the plastic molded product shown in FIG. 5, that is, the plastic molded product such as a cosmetic compact having a concave and convex pattern whose concave portion bottom surface 26a is clearly colored by the colored layer 14 is formed. can get.

The above is the case where the concavo-convex pattern is formed on one surface of the synthetic resin film and the printing layer is applied to a predetermined portion (the portion corresponding to the convex portion of the concavo-convex pattern) of the other surface, as shown in FIG. On the other surface of the synthetic resin film, the same treatment as above (FIG. 7) is performed except that a printing layer is applied to a portion corresponding to the concave portion between the convex portions of the convex pattern. The plastic molded product shown in FIG. 8, that is, a plastic molded product such as a cosmetic compact having the inlaid concavo-convex pattern in which the convex top surface 26b is colored by the colored layer 14 is obtained.
In addition, a concavo-convex pattern is formed on one surface of the synthetic resin film, and printed on a predetermined portion of the other surface (both the portion corresponding to the convex portion of the concavo-convex pattern and the portion corresponding to the concave portion between the convex portion and the convex portion). It is also conceivable to apply layers.

As the paste-like UV-curable resin, Diabeam (manufactured by Mitsubishi Rayon Co., Ltd.) is usually used, and as the UV irradiation lamp 10, a lamp manufactured by Iwasaki Electric is used. Then, the irradiation time is set to about 15 seconds.

Further, an uneven pattern 20 is formed on one surface of the synthetic resin film by ultraviolet curing, and the printing ink layer 14 is formed on a predetermined portion of the other surface (a portion corresponding to the concave or convex portion of the uneven pattern) as described above. Instead, a plurality of silk screen plates 12 shown in FIG. 1 are used, and as shown in FIGS. 9 and 10, a release material ink layer 17, a metallic ink layer 18, a thermosetting adhesive layer (not yet (Cured state) 19 may be formed.

In the above embodiment, the ultraviolet curable resin 4 is cured by irradiating the ultraviolet curable resin 4 supplied in the recess 2 formed on the outer peripheral surface of the rotary drum 1 with ultraviolet rays. However, the present invention is not limited to this, and a paste-like vinyl chloride resin may be supplied into the recess 2 and heated by a burner or the like to cure the vinyl chloride resin. Further, a fast-curing resin or an electric ray curable resin may be used instead of the ultraviolet curable resin or vinyl chloride resin.

In the above embodiment, the printing ink layer 14 is formed with the same color ink, but instead of this, a plurality of silk screen plates are used, and the ink color is changed for each predetermined area. You may make it form a printing ink layer.

[0016]

INDUSTRIAL APPLICABILITY As described above, the transfer film with a concave-convex pattern of the present invention uses a rotary drum having, for example, a concave pattern on its outer peripheral surface, and uses the concave pattern on one surface of a synthetic resin film to synthesize a synthetic resin film. Forming various convex patterns with a resin, on the other surface of the synthetic resin film, a colored layer is formed on at least one of the portion corresponding to the convex portion of this convex pattern and the portion corresponding to the concave portion between the convex portions. Formed and configured. Therefore, when manufacturing a compact with uneven pattern using this, for example, the film is placed on the bottom surface of the injection molding die with the uneven surface facing downward, and the molding die is closed in that state to fill and mold the raw material. Then, by peeling the uneven transfer pattern-bearing transfer film from the obtained compact, an uneven pattern is formed on the surface, at least one of the concave portion and the convex portion,
A colored compact can be easily obtained by transferring the colored layer of the film. Moreover, since the uneven pattern is transferred and formed by using the concave or convex portion of the transfer machine base, the uneven pattern transferred and formed on the film by accurately forming the concave or convex portion of the transfer machine base. Will be accurate. Further, according to the manufacturing method of the present invention, a rotary drum having a recessed pattern formed on the outer peripheral surface is used, and various recessed patterns are formed on one surface of a synthetic resin film by using the recessed pattern, and this is formed into a film. Then, the colored layer is formed on at least one of the portion corresponding to the convex portion of the convex pattern and the portion corresponding to the concave portion between the convex portions on the other surface of the synthetic resin film. That is, according to the manufacturing method of the present invention, since the convex pattern is formed by using the rotary drum, the thick convex pattern can be formed easily and continuously. Further, since the colored layer can be formed by subjecting the convex pattern to screen printing, for example, it is possible to realize an abundance of colors and patterns.

As described above, according to the present invention, a transfer film with an uneven pattern can be manufactured at low cost, in which at least one of the concave portion and the convex portion of the uneven pattern is accurately colored so that a molded product with the uneven pattern can be easily manufactured. It can be mass-produced.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a manufacturing apparatus of the present invention.

FIG. 2 is a sectional view showing the above embodiment.

FIG. 3 is an explanatory diagram of a manufacturing process using the present invention.

FIG. 4 is an explanatory diagram of a manufacturing process using the present invention.

FIG. 5 is an explanatory diagram of a manufacturing process using the present invention.

FIG. 6 is a sectional view showing another embodiment of the present invention.

FIG. 7 is an explanatory diagram of a manufacturing process using the present invention.

FIG. 8 is an explanatory diagram of a manufacturing process using the present invention.

FIG. 9 is a cross-sectional view showing another embodiment of the present invention.

FIG. 10 is a sectional view showing another embodiment of the present invention.

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

[0016]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotating drum 2a convex pattern 4 ultraviolet curing resin 7 synthetic resin film 14 printing ink layer 15 transfer film with uneven pattern 20 uneven pattern

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Keiichi Ishikawa 12-28 Kashida Higashi-cho, Higashi-Osaka City, Osaka Prefecture Meiwa Gravia Co., Ltd.

Claims (3)

[Claims] 1. A synthetic resin film having a concavo-convex pattern formed on one surface thereof by transfer using a concave portion or a convex portion of a transfer machine base, and the other surface portions (A) and (B) of the synthetic resin film. ), A transfer coloring layer is formed on at least one of the transfer layers so that the color is changed for each predetermined area or 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 transfer film with an uneven pattern according to claim 1, wherein the synthetic resin forming the uneven pattern is an ultraviolet curable resin. 3. A rotary drum having a concave pattern formed on its outer peripheral surface is prepared, and a paste-like synthetic resin is filled into the concave pattern of the rotary drum, and the synthetic resin is rotated while rotating the rotary drum. The film is brought into contact with the outer peripheral surface of the rotary drum in synchronism with the rotation of the rotary drum, and the paste-like synthetic resin filled in the recess is cured and integrated with the synthetic resin film, and then the synthetic resin film. By separating from the rotary drum, the cured synthetic resin is peeled from the recess, and a concavo-convex pattern is formed on one surface of the synthetic resin film, and at least one of the other surfaces (A) and (B) is formed. A concavo-convex pattern having a concavo-convex pattern formed by forming a colored layer for transfer by changing the color for each predetermined region or so that all regions have the same color. Manufacturing method of patterned transfer film. (A) A portion corresponding to the convex portion of the uneven pattern. (B) A portion corresponding to a concave and convex portion.