JP4863087B2 - Plastic decorative container - Google Patents

Description

  The present invention relates to a synthetic resin container in which an outer surface is decorated by laminating a vapor deposition film layer and a colored coating film layer.

  In containers for cosmetics and the like, where the decorativeness of the package occupies a large portion of the product power, it is desired that the product image is greatly improved by exhibiting various decorative properties by vapor deposition, painting, printing, and the like. For example, Patent Document 1 describes an invention related to a cosmetic container in which a metallic decoration is three-dimensionally applied using a hot stamp method, and is high-grade by imparting a metallic luster to the surface. An image can be given.

In addition, the method of decorating by forming a pattern in this transparent part by making a part of an opaque container transparent is also a method with high decoration effect, including the advantage that the state of the contents can be seen. Various methods have been tried. Specifically, using a transparent or translucent container body, partially masking and painting, partially overprinting with a shrink film that remains transparent without printing, insert molding, 2 It is a method such as color molding. Among these, from the viewpoint of luxury, the method of painting with masking is excellent.
Japanese Patent Application Laid-Open No. 6-286397

  However, in the above-described coating method using masking, it takes time to apply the masking film and to remove the film after painting, and the process and work are complicated, and when the film is peeled off, the coating film is pulled together and the edge is removed. There is a problem that the part floats or becomes jagged, dissatisfaction remains in terms of delicateness and high quality, and the defect rate is high.

  Therefore, the object of the present invention is to provide an unprecedented aesthetically superior and high-quality appearance by making use of the transparency of the deposited film layer, the colored coating layer, and the container body, and the delicate pattern and optical visual effect. The object is to provide a synthetic resin container.

The configuration of the present invention for solving the above problems is as follows.
In a synthetic resin decorative container,
Transparent or translucent, having a colored film layered with a vapor-deposited film layer mainly composed of metal on the outer surface of a synthetic resin container body, and a colored coating layer on the outside thereof,
Forming a light transmission part formed by removing the deposited film layer and the colored coating film layer together by irradiating the colored part with laser light;
Having a clear coat layer covering the colored portion including the transparent portion;
It is said to be decorated by the formation pattern of the transmissive part in the colored part.

As a method of forming the transmission part by removing the vapor deposition film layer and the colored coating film layer together by irradiation with laser light, a method of scanning the coating film layer with laser light in conjunction with a computer storing a predetermined irradiation pattern There is a method in which a coating layer is irradiated with laser light from a masking type laser light shielding plate having a predetermined pattern.
The colored film layer and the deposited film layer can be removed by heating, decomposing, transpiration, and sublimation in the portion irradiated with the laser beam by such a method, and the colored portion area is more delicate and high quality by the transmission portion. A pattern can be formed.

  And, in the inner peripheral surface portion of the container body corresponding to the colored portion, the vapor deposition film layer appears through the wall of the transparent container body, and when the transparent content liquid is filled, depending on the viewing direction, the transmission portion Through this, an optical visual effect can be produced such that the light reflected by the deposited film layer shines in the container.

In addition, moire patterns can be revealed by the optical interference of the patterns on the near side and the far side transmission part, combined with the visual effect due to the reflection on the deposited film layer, giving an unprecedented decorative effect. It becomes possible to make it appear.
In addition, not only a pattern but a character, a symbol, and a mark can also be displayed by a transparent part, and some information can be marked on a container with a decoration effect.

In addition, when irradiating with laser light, the focus or irradiation energy is appropriately set so that the synthetic resin forming the container body is not affected. The outer surface smoothed in a mirror shape may be slightly roughened.
Here, the deposited film layer exhibits not only the above-described optical decoration effect, but also a function of mitigating adverse effects such as roughening of the container body surface due to laser light irradiation as described above, and scratches. . That is, the vapor deposition film layer mainly composed of metal instantly sublimates upon irradiation with laser light, so that the adverse effect on the surface of the container body due to irradiation with laser light can be effectively suppressed.

In addition, the clear coat layer covers the entire coating layer including the transmissive part to prevent the coating layer from being damaged or partially peeled off, and to prevent a step between the colored part and the transmissive part. Smooth and aesthetically pleasing appearance.
In addition, in combination with the above-described effects of the deposited film layer, the transparent portion can be covered with a clear coat layer to compensate for the roughening caused by laser light irradiation, and the transparent portion can be made smooth. The transparency of the can be maintained in a clear state.

For the container body 1, for example, a transparent resin such as a polycarbonate resin, a styrene resin, an acrylic resin or the like can be used, and a crystalline resin such as a polypropylene resin, a polyethylene resin, or a nylon resin has an appropriate thickness. Resin that can be used as a translucent resin if it is too thin, and is a crystalline resin such as a biaxially stretched blow molded polyethylene terephthalate resin, but can ensure transparency or translucency by a molding method Can also be used.
Further, the container body may be colorless and transparent or colored and transparent.
In addition, the container body can be molded by any molding method such as injection molding, blow molding, or thermoforming.

  Various metal and alloy compounds can be applied to the metal-deposited film layer, and there are no limitations on the materials, and usually aluminum, silver, gold, copper, rhodium, chromium, nickel, platinum, titanium, molybdenum, tungsten And various compounds such as silicon oxide, tin oxide, cerium oxide, titanium oxide, zinc oxide, zinc sulfide, and magnesium fluoride can be used according to the purpose.

  The paint that forms the coating layer contains pigments for coloring, colorants, etc., and for example, UV curable paints, acrylic paints, urethane paints, etc. can be used. Since it absorbs efficiently (hereinafter, a material having such a function as a pigment may be referred to as a light absorbing material) and is heated, the entire coating layer is easily heated, decomposed and evaporated by irradiation with laser light. be able to.

  There is no restriction | limiting in particular about the pigment to be used, For example, carbon black, iron oxide, ultramarine blue, titanium oxide, titanium yellow, titanium dioxide, an inorganic silicon compound (mica, kaolins), etc. can be used.

  In addition, the colored coating layer is usually preferably colored and opaque in consideration of the contrast with the pattern formed in the transmission part, but it can also be colored and transparent by slightly dispersing the colorant. In some cases, a vapor-deposited film layer laminated on the inner side can provide a metallic appearance as a whole.

  As the clear coat layer, transparent, for example, UV curable paint, acrylic paint, urethane paint, and the like can be used. However, in the case of UV curable paint, since it can be dried in a short time by irradiating with UV light, it is efficient.

  The type of laser light to be used is not particularly limited, and can be selected in consideration of the removability of the deposited film layer or coating layer, the influence on the container body, etc., for example, carbon dioxide laser, ruby laser, semiconductor Laser, argon laser, excimer laser, YAG laser, etc. are listed.

  In addition, as a method of forming a pattern by laser light irradiation, as described above, a method using a shielding plate on which a predetermined pattern is formed, or scanning with laser light in conjunction with a computer storing a predetermined irradiation pattern. Although there is a method, in particular, a method of scanning a laser beam in conjunction with a computer can easily cope with any design, that is, a wide variety of designs without impairing mass productivity.

  Another configuration of the present invention is that a vapor deposition film layer is laminated on the outer surface of the container main body through a transparent anchor layer in addition to the above configuration.

  The anchor layer is also referred to as the undercoat layer, and acrylic resin-based ultraviolet (UV) cured coatings and heat-drying type coatings are often used. The anchor layer firmly secures the deposited film layer outside the container body. It can be fixed tightly to the surface, can prevent partial peeling of the deposited film layer, and can maintain the decoration effect with high quality.

  The anchor layer can be removed together with the deposited film layer and the coating film layer by irradiation with laser light, or can be left. When removing, it is preferable to finely disperse the light absorbing material to such an extent that the transparency is not impaired. Further, the decoration effect can be further changed by leaving the colored transparent anchor layer.

Since the present invention has the above-described configuration,
In the portion irradiated with the laser light, the colored coating layer and the deposited film layer can be removed by heating, decomposition, evaporation, sublimation, and the transmission portion can be formed into a delicate and high-quality pattern.
In addition, there are unprecedented decorative effects such as visual effects due to light reflection on the vapor deposition film layer on the far side through the transmissive part on the front side, moire patterns due to interference of patterns facing the front side and the far side, etc. You can make it appear.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below along the examples with reference to the drawings.
1 and 2 show a first embodiment of a decorative container made of a synthetic resin according to the present invention. FIG. 1 is an overall perspective view, and FIG. It is a schematic explanatory drawing shown in a cross section. This container is for cosmetics, and the container body 1 is a colorless and transparent small bag made of polyethylene terephthalate resin by biaxial stretch blow molding, and has a mouth tube portion 2, a cylindrical body portion 3, and a bottom portion 4. Have.

  As shown in FIG. 1, the container body 1 has a colored portion 5 except for the mouth tube portion 2, and the colored portion 5 has a transmissive portion 6 in which a plurality of curved strips are arranged in parallel. The central angle of the barrel 3 is formed over a range of approximately 300 °.

  The layer structure of the colored portion 5 and the transmissive portion 6 is as shown in FIG. 2, and the colored portion 5 includes a colorless and transparent anchor layer 11 / aluminum deposited film layer 12 / black coating layer 13 / clear coat layer. 14 and the transparent portion 6 is laminated on the outer surface of the body 3 of the container body 1 as a base material.

The decoration by the colored part 5 and the transmissive part 6 as described above is generally performed in the following steps.
(1) A colorless and transparent anchor layer 11 formed by UV-curing an acrylic resin-based paint is formed on the outer surface of the container body 1 excluding the mouth tube portion 2, and an aluminum deposition film is formed on the outside by a vacuum deposition machine. The coating layer 13 is formed by forming a layer 12 and UV-curing an acrylic resin-based paint in which a black pigment is dispersed and colored black on the outside thereof.
(2) Next, as shown in FIG. 1, the YAG laser beam is used on the coating layer 13 in conjunction with a computer in which the pattern of the transmissive portion 6 in which a plurality of curved strips are arranged in parallel is stored in advance. , And the coating layer 13, the deposited film layer 12, and the anchor layer 11 are removed by heating, decomposition, transpiration, and sublimation to form the transmission portion 6.
(3) Next, the acrylic resin-based paint is UV-cured, and the entire coating layer 13 including the transmission portion 6 is covered with the clear coat layer 14.

In such a process, the container decorated with the colored portion 5 and the transmissive portion 6 as shown in FIG. 1 exhibits the following visual effects and decorative effects depending on the type of content liquid, the direction of viewing the container, and the like. Is done.
(1) Since the boundary between the laser-transmitted portion 6 and the adjacent colored portion 5 is formed clear, the black colored portion 5 has a high-quality pattern formed by the transmissive portion 6.
(2) When the transparent content liquid is filled, the colored portion 5b and the transmissive portion 6b on the opposite side can be seen through the transmissive portion 6f formed on the near side through the content liquid.
In particular, the vapor deposition film layer 12 is laminated over the transparent anchor layer 11 on the inner peripheral surface of the barrel portion 3 of the colored portion 5b on the opposite side, and depending on the viewing direction, the vapor reflection of the vapor deposition film layer 12 causes light reflection. A visual effect that sparkles inside appears.
(3) Further, the transmissive portion 6 in which a large number of strips are arranged in parallel causes the narrow striped pattern on the near side to optically interfere with the narrow striped pattern on the opposite side, and a moire pattern appears.

FIG. 3 is an overall perspective view showing a second embodiment of the synthetic resin decorative container of the present invention. The container body 1 of this embodiment has a gourd-shaped body portion 3, and a portion excluding the mouth tube portion 2 is a colored portion 5, and a transparent portion 6 in which a narrow band is spirally formed is formed on the colored portion 5. Yes.
The layer structure of the colored portion 5 and the transmissive portion 6 is the same as that in the first embodiment.

  In the conventional method of partial masking and painting, it is not possible to form the transmissive portion 6 of this type of pattern on the container body 1 having a curved surface shape like a gourd, but a computer in which the pattern is stored in advance. According to the method of scanning the laser beam in conjunction with this, the rotation of the container body 1 around the central axis and the vertical movement of the laser light source are synchronized, so that the transmission part 6 having such a pattern can be easily and Can be formed into a product.

As mentioned above, although embodiment of this invention was described along the Example, this invention is not limited to these Examples.
For example, in the above embodiment, a pattern is formed by the transmissive portions 6 in which a large number of curved strips are arranged in parallel or spirally, but the pattern can be drawn in various modes by irradiation with laser light. Delicate patterns can be drawn freely, such as making fine thin lines mesh.
Further, the transparent portion 6 may represent characters, symbols, or landmarks.

  Further, the material used for the container body 1 and each layer for decorating is not limited to the above embodiment, but can be selected according to the purpose of use. The container body 1 or the clear coat layer 14 is colored and transparent. Moreover, the coating-film layer 13 is not limited to black, It can also be colored in another color, and also can be colored transparency. Further, the colored transparent anchor layer 11 can be left in the transmissive portion 6 without dispersing the light absorbing material in the anchor layer 11.

  The synthetic resin decorative container of the present invention forms a transparent part in a delicate and high-quality pattern by removing the colored coating layer and the deposited film layer by heating, decomposing, transpiration, sublimation by laser irradiation. It is possible to provide a container having unprecedented decorating properties in combination with light reflection and interference effects, and is expected to be widely used in the field of cosmetic containers and the like.

It is a perspective view which shows 1st Example of the decorating container of this invention. It is a schematic explanatory drawing which shows the lamination | stacking state of each layer for decoration of the container of FIG. 1 with the plane cross section of a trunk | drum. It is a perspective view which shows 2nd Example of the decorating container of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Container body 2; Mouth part 3; Body part 4; Bottom part 5 (5f, 5b); Colored part 6 (6f, 6b); Transmission part 11; Anchor layer 12; Deposition film layer 13; Clear coat layer

Claims (2)

A transparent or translucent colored portion (5) in which a metal-deposited film layer (12) is laminated on the outer surface of a synthetic resin container body (1), and a colored coating layer (13) is laminated on the outside thereof. Having the light-transmitting portion (6) formed by removing the vapor-deposited film layer (12) and the colored coating layer (13) by irradiating laser light to the colored portion (5), A structure having a clear coat layer (14) covering the colored portion (5) including the transmissive portion (6), and decorating with a formation pattern of the transmissive portion (6) in the colored portion (5); Synthetic resin decoration container. The decorative container made of synthetic resin according to claim 1, wherein a vapor deposition film layer (12) is laminated on the outer surface of the container body (1) through a transparent anchor layer (11).