JP5202871B2 - The manufacturing method of the decorative molded object for compact containers, and the decorative molded object for compact containers obtained by it. - Google Patents

Description

The present invention relates to preparation and decorative molded body compact container obtained thereby compact container decorative molded body having a shading pattern on at least a portion of the molding surface.

  A compact container, a lipstick container, and the like that contain cosmetics are required not only to have functionality but also to have a good design and a design that reflects the product image. As a technique that meets such a requirement, for example, a technique is disclosed in which a decorative film is integrated with a lid of a compact container without using an adhesive (see Patent Document 1).

In addition, a technique is disclosed in which a thin film layer provided on the front and back surfaces of the lid is irradiated with a laser, and a watermark pattern of a pattern composed of fine lines and dots is formed on the thin film layer (Patent Literature). 2 and 3).
JP 2001-292828 A JP 2006-34623 A JP 2006-334122 A

  However, as in the above-mentioned Patent Document 1, there is a problem in that a decorative film is deteriorated in appearance, worn or damaged over time, and looks bad. In addition, as in Patent Document 2, a fine watermark pattern formed with a laser is beautiful and excellent in durability, but the pattern has no three-dimensional effect or shadow, and the pattern tends to be monotonous. There is.

  On the other hand, the thing of the said patent document 3 is combining the fine watermark pattern and uneven | corrugated pattern which are formed with a laser, there exists a three-dimensional effect, and it is very interesting. However, it is necessary to give a fine uneven shape to the watermark pattern formation portion in advance in in-mold transfer molding or the like, and in the next step, an appropriate arrangement is made to the uneven shape forming portion. Therefore, there is a problem that a watermark pattern by a laser has to be provided, the process is complicated, and the manufacturing cost is increased.

The present invention has been made in view of such circumstances, simply at low cost, capable of forming a shading pattern capable of providing a wide variety of impression, preparation of superior compact container decorative molded body And the objective is to provide a decorative molded body for a compact container obtained thereby.

In order to achieve the above object, the present invention provides a molding comprising a transparent layer formed by molding a transparent member, and a non-transparent thin film layer formed on at least a part of the surface of the transparent layer or at least a part of the back surface. preparing a body, the irradiated with CO ₂ laser to a given region of the non-transparent thin film layer, and a non-transparent thin film layer is removed in the specific region, and a partial removal process of the transparent layer below it at the same time And forming a shading pattern in the specific area, and forming a concave surface having a regular shadow by closely arranging the linear melt removal marks in the CO ₂ laser irradiation to the specific area . A method for producing a decorative molded body for a compact container in which irradiation is combined with a second irradiation that forms a single line composed of a linear melt removal trace that is wider and deeper than the linear melt removal trace is described above . It is set as the summary of 1.

Further, the present invention provides a step of preparing a molded body having a transparent layer formed by molding a transparent member and a metal thin film layer formed on at least a part of the back surface of the transparent layer, and the surface of the transparent layer, The specific region corresponding to the portion where the metal thin film layer is formed is irradiated with a CO ₂ laser, and the transparent layer is partially removed to form a shading pattern in the specific region. A first irradiation for forming a concave surface having a regular shadow by closely arranging the linear melt removal traces in the CO ₂ laser irradiation to the specific region ; A method for producing a decorative molded body for a compact container , which is combined with the second irradiation for forming a single line consisting of a linear melt removal trace that is wider and deeper than the linear melt removal trace , The gist.

And this invention is the decorative molded object for compact containers obtained by the manufacturing method which is the said 1st summary, Comprising: The transparent layer which shape | molds a transparent member, At least one part or the back surface of the surface of the said transparent layer A non-transparent thin film layer formed on at least a part of the non-transparent thin film layer, and a specific region of the non-transparent thin film layer is removed and a transparent layer under the non-transparent thin film layer is partially removed by irradiation with a CO ₂ laser. In addition, a shadow pattern is formed in the specific region, and the shadow pattern is formed by a concave surface where a regular shadow is formed by densely arranging linear melt removal traces by a CO ₂ laser, and also by CO ₂ laser irradiation. the decorative molded body for a compact container that consists of a single wire made of deep linear melting removing trace having from width wider depth the linear melting removing trace shall be the third aspect.

Further, the present invention is a decorative molded body for a compact container obtained by the production method according to the second aspect, formed on at least a part of the transparent layer formed by molding a transparent member and the back surface of the transparent layer. The specific region of the transparent layer surface corresponding to the portion where the metal thin film layer is formed is partially removed by CO ₂ laser irradiation , and the specific layer is formed. A shadow pattern is formed in the area, and this shadow pattern is reflected on the metal thin film layer on the back surface through the transparent layer. The shadow pattern is regularly aligned with the traces of the linear melt removal by the CO ₂ laser. Decoration for a compact container composed of a concave surface with a simple shadow and a single line consisting of a linear melt removal trace that is wider and deeper than the linear melt removal trace by CO ₂ laser irradiation. a fourth aspect of the molded body That.

The present invention irradiates a specific area of a non-transparent thin film layer laminated on a transparent layer with a CO ₂ laser to remove the non-transparent thin film layer in the specific area, and at the same time, partially removes the transparent layer below it. By removing the surface, the watermark pattern is formed on the part covered with the non-transparent thin film layer, and at the same time, the surface of the transparent layer exposed from the opening of the pattern is processed into a concave shape to form a three-dimensional shape with a characteristic shadow. As a result, the first characteristic is that a watermark pattern with shadows is formed in one step.

Further, the present invention irradiates a specific region of the transparent layer having a metal thin film layer on the back side with a CO ₂ laser, and has a characteristic shadow on the surface of the transparent layer in the same manner as described above. A second feature is that a three-dimensional shadow pattern is formed and the shadow pattern is reflected on the metal thin film layer on the back surface side through the transparent layer.

According to the method of the present invention, such a three-dimensional shadow pattern having a characteristic shadow (hereinafter referred to as a “shadow pattern” including a watermark pattern having a shadow) is applied to the first laser irradiation and the second laser irradiation. It can be formed in one step of laser irradiation combined with laser irradiation, and the labor and cost of manufacturing can be greatly reduced. In addition, by combining the laser irradiation setting conditions, the layer forming the shadow pattern and the arrangement of other layers, etc., it is possible to give a shadow pattern with a completely different impression. It has the advantage that a variety of products can be delivered.

Moreover , in the present invention , in particular, in the CO ₂ laser irradiation with respect to the specific region, the first irradiation that forms a concave surface having a regular shadow by arranging the linear melt removal traces closely, and the linear melt removal traces Since it is combined with the second irradiation that forms a single line consisting of deep and deep linear melt removal traces, it is complicated by adding contour lines and emphasis lines to concave surfaces with subtle irregularities. A shady pattern with a simple impression can be obtained, and a decorative molded body with more fun can be obtained.

In addition, the decorative molded body for a compact container obtained by the production method of the present invention has a three-dimensional shading pattern having a characteristic shadow on a very thin transparent layer, and is provided on the front or back surface thereof. A combination of a transparent thin film layer and a metal thin film layer has a very interesting appearance. And the three-dimensional shading pattern which has the characteristic shadow is excellent in durability, and has the advantage that the external appearance is maintained beautifully for a long period of time.

  Next, the best mode for carrying out the present invention will be described.

  FIG. 1 is a perspective view of a compact container that is the best mode for carrying out the present invention, and FIG. 2 is a sectional view taken along line XX ′. In these drawings, reference numeral 1 denotes a main body, and a cosmetic 2 such as a foundation is accommodated and held in a recess 2 provided on the left side toward the inside thereof. Further, a puff for applying cosmetics to the skin is accommodated and held in the recess 3 provided on the right side.

  And, as shown in FIG. 4 which is an exploded perspective view, the lid body 4 that covers the upper opening of the main body 1 has a lid frame body 6 having an aluminum vapor deposition film formed on the entire surface thereof and having a metallic luster, It is comprised with the cover plate 7 fitted and integrated with the upper surface of the cover frame body 6. FIG.

  A hinge portion 6a protrudes downward from the rear end portion of the lid frame 6, and the hinge portion 6a engages the rear end portion of the main body portion 1 so that it is indicated by a chain line in FIG. In addition, the lid 4 opens upward. A mirror 5 is attached to the inner side surface of the lid frame 6 (see FIG. 2).

  The lid plate 7 is composed of a transparent layer 8 made of a transparent acrylic resin molded body and a non-transparent thin film layer 9 (hereinafter simply referred to as “thin film layer”) made of a white printed layer formed on the back surface thereof. A part of the thin film layer 9 is removed by a special method described below so that the transparent layer 8 is exposed and a watermark pattern P having a shadow is given. A part of the watermark pattern P is shown in FIG.

  The watermark pattern P can be obtained, for example, as follows. That is, first, a mold for shaping the lid plate 7 is prepared. Then, the mold is closed with the white transfer film disposed on the side of the mold on which the back surface of the lid plate 7 is shaped, and a transparent acrylic resin material that is a material for forming the transparent layer 8 is injected. Molding is performed (in-mold transfer molding). Thereby, as shown in FIG. 5, the cover plate 7 in which the white thin film layer 9 is integrally formed on the back surface of the transparent layer 8 can be obtained.

Next, as shown in FIG. 6A, the thin film layer 9 in the region A in which the watermark pattern P is to be formed is melted and removed by irradiation with CO ₂ laser, and the thin film layer 9 is further removed. The exposed surface of the transparent layer 8 below (upper in the drawing) is removed into a concave shape to create a shaded watermark P. The region A is shown in FIG.

The irradiation condition of the CO ₂ laser is set so that the entire surface of the thin film layer 9 in the region A is removed as a surface. More specifically, the entire surface of the thin film layer 9 in the region A is removed by scanning the laser beam so that the linear melt removal traces are arranged in parallel at a dense interval. Therefore, parallel concave stripes are arranged on the surface of the transparent layer 8 exposed by this irradiation based on the scanning pitch of the laser beam, thereby forming a concave surface having a delicate wavy pattern shadow.

The linear melt removal trace that is melted and removed by irradiation with the CO ₂ laser is appropriately set according to the shading pattern to be applied, but the interval between adjacent melt removal traces is a linear melt removal trace. However, it is preferable to set the density so as to overlap each other. However, in the present invention, the “depth of the melt removal trace” refers to the depth from the surface of the thin film layer 9 to the bottom of the concave portion of the transparent layer 8 that is removed in a concave shape, and in FIG. In FIG. 7A, this is indicated by “D ′”.

Next, as shown in FIG. 7A, when it is desired to further insert the outline of the watermark pattern P or a sharp line in the design in the portion of the region A from which the entire thin film layer 9 has been removed, In order to form a linear melt removal trace that is clearer than in the case of the surface removal, a CO ₂ laser irradiation is performed on that portion. As a result, the outline of the watermark P is clarified, and in this example, a sharp cut line such as an edge of a diamond cut enters, and a concave surface having a subtle wavy pattern shadow formed on the entire surface of the region A. As a result, a watermark pattern P that is very shaded as a whole is obtained.

In this case, the linear melt removal trace that is melted and removed by irradiation with the CO ₂ laser is more than the linear melt removal trace formed in parallel at a dense interval in order to remove the surface in a concave shape. It is necessary to set the width to be large and the depth to be deep.

  According to this configuration, the metallic gloss surface of the lid frame 6 underneath can be seen through the watermark pattern P of the lid plate 7, and the shadow of the subtle wavy pattern imparted to the entire surface of the watermark pattern P can be obtained. The sharp outline and the shadow of the line showing the edge of the diamond cut shine in response to the reflected light from the lower metallic glossy surface, giving an unprecedented and beautiful impression.

The watermark pattern P is formed from the back side of the cover plate 7, and the surface itself of the cover plate 7 maintains its original smoothness, so that these patterns are worn and damaged over time. It will not get dirty. Further, the shaded watermark pattern P can be easily formed by irradiation with a CO ₂ laser, and has the advantage that it does not cause a significant increase in cost and restrictions on the production lot.

  In the above example, the transparent member that constitutes the transparent layer 8 of the cover plate 7 may be any transparent member that has been conventionally used for molded products such as containers. Other examples include polystyrene, ABS resin, and polycarbonate. These must be transparent in order to show the shadow of the watermark P, but they need not be colorless, and even if they are slightly colored, there is no problem as long as the opposite side can be seen through.

  In addition, as the thin film layer 9 formed on the back surface of the transparent layer 8, the white print layer transferred from the white transfer film is used in the above example, but the material is not particularly limited. Any thin film layer 9 used for decorating the molded body may be used. However, in contrast to the transparent layer 8, it must be non-transparent, and various materials such as a hologram sheet, a metal foil, a metal vapor-deposited layer, and a paint coating film are used in addition to a colored film (sheet). Of course, as the method for forming the thin film layer 9, an appropriate method may be employed depending on the material such as vapor deposition, sputtering, plating, hot stamping, coating, etc. in addition to in-mold transfer molding. The term “non-transparent” means that when the removed portion and the non-removed portion of the thin film layer 9 are compared, it is not transparent so that it can be recognized that there is a difference in appearance. ""

In the above example, the watermark pattern P is formed by combining a relatively shallow CO ₂ laser irradiation that forms a concave surface and a relatively deep CO ₂ laser irradiation that forms a single line. but, it is necessary to combine two of this. In other words , when the watermark pattern P is created only by CO ₂ laser irradiation that forms a single line, the watermark pattern P appears to be composed only of lines with the naked eye, and the watermark pattern P is not very interesting. Therefore , it is necessary to make a pattern combining a concave surface having a certain area and a relatively deep single line .

  In the above example, laser irradiation for forming a concave surface is first performed, and then laser irradiation for forming a single line such as a contour line is performed. However, the order may be reversed. However, in order to obtain a sharper single line, it is preferable to form this last.

  In the above example, the watermark P is formed from the back side on the cover plate 7 made of the transparent layer 8 having the thin film layer 9 on the back side, and this is covered from the lid frame body 6 having a metallic luster. However, the metal foil, hologram foil, other glossy sheet, colored sheet or the like is sandwiched between the transparent or colored lid frame body 6 and the lid plate 7 so as to be fitted. There is no problem. Or you may make it stick non-transparent materials, such as the said metal foil, directly on the back surface side of the cover board 7 in which the watermark pattern P was formed. In this case, it is not necessary to divide the lid body 4 into two members, that is, the lid frame body 6 and the lid plate 8, and a single member can be obtained.

  Moreover, instead of interposing these colored sheets and glossy sheets, a colored layer may be formed by applying a colored paint on the upper surface of the lid frame 6. Alternatively, the watermark pattern P can be displayed under the watermark pattern P without the presence of a non-transparent layer such as a colored sheet, so that the color of the contents contained in the container below the watermark pattern P can be displayed. There is no problem.

  Of course, when the colored sheet or the like is interposed, they may not be directly applied to the back surface side of the lid plate 7 but opposed to each other with a certain space therebetween. For example, as shown in FIG. 8, in a compact container or the like having a lid plate 7 ′ (which itself is a lid) on which a watermark pattern P is formed and an inner lid 30, the above-mentioned coloring is applied on the inner lid 30. The same effect as in the above example can be obtained by simply sandwiching the sheet 20 or the like. Further, as shown in FIG. 9, a colored sheet 20 or the like may be directly attached to the upper surface of the inner lid 30 or a colored layer may be formed.

  Further, the color visible from the watermark pattern P need not be a single color, and the color visible from the watermark pattern P can be changed by partially changing the color of a non-transparent material such as a colored sheet placed under the watermark pattern P. , The pattern part can be different colors. In this way, a more vivid impression can be given.

  Further, in the above series of examples, in the cover plates 7 and 7 ′, the watermark pattern P is formed on the thin film layer 9 provided on the back surface side of the transparent layer 8, and the lower color is seen through. However, as another example, a thin film layer 9 may be provided on the surface side of the transparent layer 8, and a watermark pattern P may be formed on the thin film layer 9.

And as a different example of the present invention, for example, as shown in FIG. 10 (a), a metal thin film layer 21 is provided on the back side of the transparent layer 8, and the surface of the transparent layer 8 is the same as described above. The shading pattern P ′ may be applied by performing removal processing by irradiation with CO ₂ laser. According to this example, as shown in FIG. 10B, the shadow of the shadow pattern P ′ is reflected on the metal thin film layer 21 on the back surface via the transparent layer 8, and the three-dimensional shadow is doubled. Because it looks, it becomes more interesting. In FIG. 10B, an image in which the shadow pattern P ′ is reflected on the metal thin film layer 21 is indicated by Q.

Further, in the present invention, when a concave surface is formed by repeatedly arranging and forming linear melt removal traces by irradiation with a CO ₂ laser, for example, as shown in FIG. A more impressive shade pattern can be obtained by arranging the surfaces in combination. For example, as shown in FIG. 11B, when a linear melt removal trace is formed radially from the center of a surface having a circular or polygonal outline, a shadow pattern of an impression spreading outward from the center of the surface is obtained. Can be obtained. Further, for example, as shown in FIG. 11C, a smoother concave surface can be obtained by superimposing linear melt removal traces having different directions such as vertical and horizontal directions or diagonal directions.

Incidentally, these examples are all SANYO according to the present invention in a compact container, moldings of applying the present invention, Ru resin molding der for the compact case.

It is a perspective view of one Example of this invention. It is XX 'sectional drawing of FIG. It is explanatory drawing of the watermark pattern in the said Example. It is a disassembled perspective view of the cover body in the said Example. It is detailed explanatory drawing of the formation method of the translucent part in the said Example. (A) is explanatory drawing of the formation method of the watermark pattern in the said Example, (b) is the top view of the watermark pattern. (A) is explanatory drawing of the formation method of the watermark pattern in the said Example, (b) is the top view of the watermark pattern. It is explanatory drawing of the other Example of this invention. It is explanatory drawing of other Example of this invention. (A) is explanatory drawing of the formation method of the shadow pattern in the other Example of this invention, (b) is explanatory drawing of the appearance of the shadow pattern. (A)-(c) is explanatory drawing of the modification of the pattern formation method in this invention.

Explanation of symbols

4 Lid 7 Lid 8 Transparent layer 9 Non-transparent thin film layer P Watermark pattern

Claims (4)

A step of preparing a molded body having a transparent layer formed by molding a transparent member, and a non-transparent thin film layer formed on at least a part of the surface of the transparent layer or at least a part of the back surface, and the non-transparent thin film layer A shadow pattern is formed in the specific area by irradiating the specific area with a CO ₂ laser and simultaneously removing the non-transparent thin film layer in the specific area and partially removing the transparent layer below the specific area. A first irradiation for forming a concave surface having a regular shadow by closely arranging the linear melt removal traces in the CO ₂ laser irradiation for the specific region, and a width wider than that of the linear melt removal traces. A method for producing a decorative molded body for a compact container , characterized in that it is combined with a second irradiation that forms a single line composed of thick and deep linear melt removal traces . A step of preparing a molded body having a transparent layer formed by molding a transparent member and a metal thin film layer formed on at least a part of the back surface of the transparent layer, and forming the metal thin film layer on the surface of the transparent layer The specific region corresponding to the formed portion is irradiated with a CO ₂ laser, and the transparent layer is partially removed to form a shadow pattern in the specific region. A first irradiation for forming a concave surface having a regular shadow by closely arranging the linear melt removal traces in the CO ₂ laser irradiation for the specific region, and the linear melt removal A method for producing a decorative molded body for a compact container , characterized in that it is combined with a second irradiation that forms a single line consisting of a linear melt removal trace that is wider and deeper than the trace . A decorative molded body for a compact container obtained by the production method according to claim 1, wherein the transparent layer is formed on a transparent layer and at least a part of a surface of the transparent layer or at least a part of a back surface. A non-transparent thin film layer, and a specific area of the non-transparent thin film layer is removed and a transparent layer under the non-transparent thin film layer is partially removed by irradiation with a CO ₂ laser, and a shadow pattern is formed on the specific area. The shading pattern is formed from the concave surface where the linear melt removal traces by the CO ₂ laser are closely arranged and the regular shadow is formed, and the linear melt removal traces by the CO ₂ laser irradiation. A decorative molded body for a compact container , characterized in that it is composed of a single line made of a linear melt removal trace having a large width and a deep depth . A decorative molded body for a compact container obtained by the production method according to claim 2, comprising: a transparent layer formed by molding a transparent member; and a metal thin film layer formed on at least a part of the back surface of the transparent layer. And a specific region of the surface of the transparent layer corresponding to the portion where the metal thin film layer is formed is partially removed by CO ₂ laser irradiation to form a shadow pattern in the specific region. This shadow pattern is reflected on the metal thin film layer on the back surface through the transparent layer, and the above-mentioned shadow pattern is a concave surface on which a regular shadow is formed by densely arranging the linear melt removal traces by the CO ₂ laser. If, like CO ₂ by laser irradiation, the linear melting removal compact container decorative molded body, characterized in that the width is composed of a single wire made of deep linear melting removing traces of thicker depth than trace .

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