JP2011218587A - Method for manufacturing plate-like decorated molded body, plate-like decorated molded body obtained by this method and decorative resin sheet used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a plate-like decorated molded body which is excellent for enabling implementation of design of various impressions combining a three-dimensional pattern with a color pattern, the plate-like decorated molded body obtained by this method, and a decorative resin sheet used for the plate-like decorated molded body.SOLUTION: The method for manufacturing the plate-like decorated molded body comprises: the process to form a three-dimensional pattern Q on a transparent plate 6; the process to obtain the decorative resin sheet 8 by forming a punched pattern Q' through removing a part corresponding with the three-dimensional pattern Q from a translucent resin sheet 1; and the process to register the positions of the decorative resin sheet 8 and the transparent plate 6, and thereby, integrate them using a self-adhesive thin film layer 2 located on the back of the decorative resin sheet 8.

Description

  The present invention relates to a method for producing an excellent plate-shaped decorative molded body capable of forming three-dimensional patterns with a wide variety of impressions on the surface, the plate-shaped decorative molded body obtained by the method, and a decorative resin used therefor It relates to the sheet.

  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. In order to meet such demands, for example, a three-dimensional pattern is formed by forming irregularities on the surface of the lid portion of the compact container, and a color pattern is printed so as to correspond to this three-dimensional pattern. The ones that have been made are available.

  As a method of providing a design combining such a three-dimensional pattern and a color pattern, conventionally, an unevenness for giving a three-dimensional pattern is formed on the inner peripheral surface of a mold for molding a lid, and this Generally, it is common practice to place a transfer foil with a color pattern corresponding to a three-dimensional pattern in the mold, and simultaneously apply the three-dimensional pattern and the corresponding color pattern to the lid by in-mold molding. (For example, see Patent Document 1). In addition, a lid having a three-dimensional pattern is first formed, and then a color pattern is applied with a transfer foil so as to correspond to the three-dimensional pattern, thereby integrating the three-dimensional pattern and the corresponding color pattern. There is also a method.

JP-A-6-344377

  However, in the conventional method using a mold or a transfer foil for providing a color pattern corresponding to a three-dimensional pattern, it is difficult to realize a fine design, and there is a limit to the design that can be provided. Further, in order to produce a transfer foil having a separated portion, complicated processing such as celite processing and pasta processing is required, and a special apparatus and labor are required. Further, there is a problem that it is difficult to align the three-dimensional pattern and the transfer foil, and it is difficult to obtain a desired design.

  The present invention was made by overcoming the common general knowledge of using molds and transfer foils, and was designed at low cost and with a wide variety of impressions, combining three-dimensional patterns and color patterns. A method for producing an excellent plate-shaped decorative molded body, which can be realized on the surface of the molded body, and whose specifications can be flexibly changed, and a plate-shaped decorative molded body obtained thereby, as well as the additive used therefor The purpose is to provide a decorative resin sheet.

  In order to achieve the above object, the present invention provides a process for forming a three-dimensional pattern on at least a part of the surface of a transparent plate and an opaque resin sheet having an adhesive thin film layer on the back surface. Removing the portion corresponding to the three-dimensional pattern and forming a cutout pattern to obtain a decorative resin sheet, the back surface of the decorative resin sheet on which the cutout pattern is formed, and the surface of the transparent plate And a step of aligning the three-dimensional pattern forming portion of the transparent plate and the punched pattern forming portion of the decorative resin sheet in a state of facing each other, and using the adhesive thin film layer of the decorative resin sheet. Let the manufacturing method of a plate-shaped decoration molded object be a 1st summary.

  And this invention is a plate-shaped decorative molded body obtained by the said manufacturing method, Comprising: With the back surface of the said decorative resin sheet, and the surface of the said transparent plate facing, the solid pattern formation part of a transparent plate, A plate-shaped decorative molded body that is aligned with the punched pattern forming portion of the decorative resin sheet and integrated using the adhesive thin film layer of the decorative resin sheet is defined as a second gist.

  Furthermore, the present invention is a decorative resin sheet used in the manufacturing method of the first aspect or the plate-like decorative molded body of the second aspect, and the three-dimensional structure of an opaque resin sheet having an adhesive thin film layer on the back surface. A decorative resin sheet from which a portion corresponding to the pattern is removed and a blank pattern is formed is taken as a third gist.

  The production method of the present invention uses a transparent plate having a three-dimensional pattern formed on at least a part of the surface and an opaque resin sheet having an adhesive thin film layer on the back surface, and first corresponds to the three-dimensional pattern of the opaque resin sheet. After obtaining the decorative resin sheet by removing the part and forming the cut pattern, the three-dimensional pattern forming part of the transparent plate with the back surface of the decorative resin sheet and the surface of the transparent plate facing each other Align the decorative pattern of the decorative resin sheet and make the three-dimensional pattern of the transparent plate and the decorative pattern of the decorative resin sheet overlap, and integrate using the adhesive thin film layer of the decorative resin sheet, This is a design that combines a three-dimensional pattern and a color pattern. According to this manufacturing method, a color pattern can be easily combined with a three-dimensional pattern with a fine design and separated parts, which could not be realized by the conventional method using a mold or a transfer foil, and a special and expensive apparatus is unnecessary. It becomes. In addition, since the transparent plate and the decorative resin sheet that is not in the form of a roll are overlapped, it is easy to align the three-dimensional pattern forming portion and the punched pattern forming portion. Furthermore, since it is easy to change the design including coloring and to adjust the quantity at the stage of producing the decorative resin sheet, it is possible to respond quickly to orders in small lots.

  In particular, if the opaque resin sheet is one in which the surface of the resin sheet is silk-printed and provided with a printing layer, even if the type of resin sheet is the same, the type of silk printing ink and Since various colors can be obtained only by changing the blending and the like, it is preferable. Further, according to silk printing, the thickness of the printing layer can be formed thick, and it is easy to realize a high-quality appearance. Furthermore, since the printing layer can be formed thick, it is possible to easily make the resin sheet opaque even when a transparent resin sheet is used and a light color is selected as the ink for silk printing. it can. At that time, ink is saved by not printing on the portion where the pattern is to be formed, and the cost can be reduced.

  Moreover, the plate-like decorative molded body of the present invention has a three-dimensional pattern (transparent portion) of the transparent plate and a base portion (opaque portion) other than this, and the three-dimensional pattern is recognized more three-dimensionally. And it will be very impressive. Furthermore, since the decorative resin sheet is the outermost surface, the color (color pattern) of the decorative resin sheet appears directly on the surface of the plate-like decorative molded body, giving a stronger impression.

  Furthermore, the decorative resin sheet of the present invention can be easily combined with a three-dimensional pattern and a color pattern to form one design by being used for a transparent plate-like transparent plate having a three-dimensional pattern.

  In the present invention, the “opaque resin sheet” means not only the resin sheet itself is opaque, but also the formation of an opaque printing layer on the transparent resin sheet, resulting in the resin sheet becoming opaque. This also includes the case where

It is a perspective view of one Example of this invention. It is a disassembled perspective view of the cover body in the said Example. It is a partial longitudinal cross-sectional view of the plate-like decorative molded body in the above-described embodiment. (A), (b), (c) is explanatory drawing of the manufacturing method of the said plate-shaped decorating molded object. (A), (b) is explanatory drawing of the manufacturing method of the said plate-shaped decorating molded object, respectively.

  Next, an embodiment for carrying out the present invention will be described. However, the present invention is not limited to this embodiment.

  FIG. 1 is a perspective view of a compact container which is a form for carrying out the present invention, in which 21 is a main body and 22 is a lid. As shown in FIG. 2, which is a partially exploded perspective view of the lid body 22, a lid frame body 9 having a metallic luster (silver) and a plate that is fitted and integrated with the upper surface of the lid frame body 9. And the decorative decorative molded body 5. In the plate-like decorative molded body 5, the opaque white pearl color of the printed layer 4 is directly visible in the ground portion (the portion where the three-dimensional pattern Q is not formed), and the printed layer 4 is formed. A transparent glossy layer 7 having an aurora-like gloss is seen through in a non-jewel-like three-dimensional pattern Q. Therefore, the surface of the lid body 22 on which the plate-like decorative molded body 5 is fitted and integrated is as if an aurora-like shape derived from the glossy layer 7 on an opaque white pearl plate derived from the printed layer 4. A plurality of jewels having complicated colors in which the gloss and the silver gloss derived from the lid frame 9 are combined are seen as if they were encrusted. A hinge portion 9a projects downward from the rear end portion of the lid frame 9, and this hinge portion 9a engages with the rear end portion (not shown) of the main body portion 21. As a result, the lid 22 opens upward.

  More specifically, the plate-like decorative molded body 5 includes a transparent plate 6 having a gloss layer 7 and a three-dimensional pattern Q, an adhesive thin film layer 2, a resin sheet, as shown in a partial cross-sectional view in FIG. 1 and a decorative resin sheet 8 having a printed layer 4. The three-dimensional pattern Q on the surface of the transparent plate 6 is provided with jewel-like irregularities (jewel style such as cabochon cut, brilliant cut, and rose cut). The gloss layer 7 is vapor-deposited from the back surface of the transparent plate 6 so as to have an aurora-like gloss. On the other hand, the decorative resin sheet 8 has an opaque white pearl print layer 4 formed on the surface of a colorless and transparent resin sheet 1 made of polyethylene terephthalate (hereinafter referred to as “PET”) resin, and the three-dimensional structure. The portion of the resin sheet 1 corresponding to the pattern Q, the adhesive thin film layer 2 and the release layer 3 are removed, and a blank pattern Q ′ is formed. Then, the three-dimensional pattern Q forming portion of the transparent plate 6 and the punched pattern Q ′ forming portion of the decorative resin sheet 8 are aligned and integrated using the adhesive thin film layer 2 on the back surface of the decorative resin sheet. It has a configuration. In addition, in FIG. 3, the cross section of each said layer is typical, and it differs from actual thickness (the same also in the following figures).

  The plate-like decorative molded body 5 can be obtained, for example, as follows. That is, first, a colorless transparent plate 6 which is a resin molded product having a three-dimensional pattern Q formed on a part of its surface is molded using an injection molding machine or the like. Then, aurora deposition is performed on the back surface of the molded transparent plate 6 to form a gloss layer 7 having an aurora-like gloss.

On the other hand, as shown in FIG. 4 (a), a resin sheet 1 (colorless / thickness 100 to 250 μm) having an adhesive thin film layer 2 and a release layer 3 on the back surface is prepared, and as shown in FIG. 4 (b), A white pearl opaque printing layer 4 (thickness 50 to 100 μm) is formed by silk printing, leaving a portion (q) corresponding to the three-dimensional pattern Q forming portion on the surface. Subsequently, as shown in FIG. 4 (c), the portion (q) corresponding to the three-dimensional pattern Q forming portion where the printing layer 4 is not formed is irradiated with a CO ₂ laser (ML-Z9500: Keyence Corporation). Manufactured / conditions: power 70%, scan speed 100), the resin sheet 1 is removed together with the adhesive thin film layer 2 and the release layer 3, and a portion (q) corresponding to the three-dimensional pattern Q is formed in the cut pattern Q ′. The decorative resin sheet 8 is prepared.

As shown in FIG. 5A, in the formation of the printed layer 4 by the silk printing and the formation of the cut pattern Q ′ by the CO ₂ laser irradiation, by using the data at the time of forming the three-dimensional pattern Q, Positions corresponding to each other can be accurately positioned. And the peeling layer 3 of the back surface of the said decorative resin sheet 8 is peeled, the adhesion thin film layer 2 is exposed, and the three-dimensional pattern Q formation part of the said transparent plate 6 and the drawing pattern Q 'formation of the decorative resin sheet 8 are formed. Are aligned using the adhesive thin film layer 2. Thereby, the plate-like decorative molded body 5 shown in FIG. 5 (b) can be obtained, which looks like a plurality of jewels having an aurora-like luster on the surface of white pearl color.

  According to this method, when the three-dimensional pattern Q and the color pattern are combined into one design, a fine color pattern or a color pattern with a separation portion, which has been difficult to realize by a method using a mold or a transfer foil, is conventionally used. It can be combined with the three-dimensional pattern Q, and an unprecedented design can be realized. Further, since the decorative resin sheet 8 having the cut pattern Q ′ formed on the resin sheet 1 is used, the alignment with the three-dimensional pattern Q forming portion of the transparent plate 6 can be performed accurately and easily. Furthermore, since the adhesive thin film layer 2 is provided on the back surface of the decorative resin sheet 8, integration with the transparent plate 6 can be easily performed. In addition, this method does not require a special and expensive device such as an in-mold device or a transfer device, so that it can be easily introduced and the cost can be reduced.

Since the decorative resin sheet 8 is produced by forming the cut pattern Q ′ and the color pattern portion (printing layer 4) on the resin sheet 1, the color pattern can be changed and the quantity can be adjusted with the sheet. Therefore, it is possible to provide a design that meets the needs of consumers more quickly. In addition, since the cut pattern Q ′ is formed by CO ₂ laser irradiation, removal traces such as fine portions and separated portions are formed accurately and beautifully.

The resin sheet 1 is made of colorless and transparent PET having a thickness of 100 to 250 μm, and this is irradiated with a CO ₂ laser (conditions: power 70%, scan speed 100). Without removing the resin-made sheet to be irradiated, the portion corresponding to the three-dimensional pattern can be accurately removed to obtain the desired cut pattern Q ′.

  Further, in this plate-like decorative molded body 5, the opaque printed layer 4 constituting the color pattern of the base portion appears on the outermost surface, and the gloss layer 7 on the back surface can be seen through the transparent three-dimensional pattern Q forming portion. Is. Therefore, when viewed from the surface of the plate-like decorative molded body 5, there is an advantage that the three-dimensional pattern Q appears to have a sense of depth. Further, since the printing layer 4 is opaque and the three-dimensional pattern Q forming portion is transparent, the three-dimensional pattern Q is more clearly expressed by contrast between the two.

  Moreover, the gloss layer 7 underneath is visible through the three-dimensional pattern Q forming portion of the transparent plate 6, and the light reflected by the gloss of the gloss layer 7 strikes the uneven surface of the three-dimensional pattern Q forming portion. It becomes complicated reflected light, and gives the shine of a jewel and a more three-dimensional shadow to the three-dimensional pattern Q forming part. Accordingly, in combination with the contrast with the opaque print layer 4, it has an appearance full of luxury and three-dimensional appearance.

  In the present invention, “transparent” means that the light transmittance is high and the opposite side can be seen through, and so-called “translucent” is included as long as it can be recognized that the opposite side can be seen through. . “Opaque” means that the transmittance of light is low, the opposite side is transparent and difficult to recognize, and does not necessarily require a transmittance of 0%. It is meant to include those close to “transparent”.

  In the above example, the transparent plate 6 used to form the three-dimensional pattern Q is made of PET, but other synthetic resins can be used. In particular, if synthetic resin is PET, methacrylic resin (PMMA), acrylonitrile / styrene resin (AS), acrylonitrile / butadiene / styrene resin (ABS), or polypropylene (PP), moldability, durability, and light weight are obtained. This is preferable. Moreover, it may not be colorless but may be colored.

In the above example, the resin sheet 1 used to form the cut pattern Q ′ is made of PET, but other synthetic resins or the like can be used. In particular, if synthetic resin is PET, methacrylic resin (PMMA), acrylonitrile / styrene resin (AS), acrylonitrile / butadiene / styrene resin (ABS), or polypropylene (PP), moldability, durability, and light weight are achieved. This is preferable. However, if it is too thick, the resin sheet 1 becomes meaninglessly heavy. As a result, there is a tendency to inhibit the weight reduction of the entire compact container. On the other hand, if it is too thin, the sheet strength becomes weak. _In the process of ₂ laser irradiation and the process of integration with the transparent plate 6, there is a possibility that work efficiency is lowered.

  The resin sheet 1 may be not only colorless but also colored, not only transparent, but also opaque. If it is opaque, there is an advantage that it is not necessary to provide a step of forming the printing layer 4 and labor and cost can be saved. In the case of being transparent, it is necessary to provide a step of forming the printing layer 4, but there is an advantage that a desired color can be given more easily and its change is easy. Further, when a colored resin sheet is selected and the color and the color of the printing layer 4 are combined, a more complicated color can be obtained.

  Moreover, in said example, since it is excellent in working efficiency, although the double-sided adhesive tape is used as the adhesion thin film layer 2, other various adhesive agents can be used. Among these, the use of an epoxy-based, polyurethane-based, modified acrylic resin-based, or hot-melt adhesive is preferable in terms of adhesion between the resin sheet 1 and the transparent plate 6 and thin film properties.

  In the above example, the printing layer 4 is formed by silk printing. However, the same printing as the silk printing can be formed by gravure printing and pad printing. However, silk printing is the most excellent in that the thickness of the printing layer can be formed more easily and a high-quality appearance can be realized.

  Furthermore, in the above example, the printing layer 4 is formed of an opaque white pearl ink, but inks of various colors can be arbitrarily used. This makes it possible to realize an interesting design. Moreover, the printing layer 4 may not only be a single layer but also a stack of two or more layers. Moreover, you may make it protect the surface of the plate-shaped decorative molded body 5 by forming what is called a coating layer using the ink which mix | blended UV cut component etc. in the outermost layer. And as above-mentioned, when the resin sheet 1 itself consists of an opaque raw material, this printing layer 4 does not necessarily need to be provided. Furthermore, when the print layer 4 is formed, if the print data and the data at the time of forming the three-dimensional pattern Q are shared, a print pattern corresponding to the three-dimensional pattern Q can be formed more accurately and beautifully, Ink can be saved and cost can be reduced.

Further, in the above example, punching pattern Q 'irradiates CO ₂ lasers, but with the resin sheet 1 is obtained by removing the adhesive film layer 2 and the release layer 3, also in this case, CO ₂ laser irradiation If the data for use and the data at the time of forming the three-dimensional pattern Q are shared, it is preferable that the cut pattern Q ′ corresponding to the three-dimensional pattern Q can be formed more precisely and beautifully.

Furthermore, in the above example, the cut pattern Q ′ is obtained by CO ₂ laser irradiation, but an equally beautiful one can be obtained by Thomson processing. However, the finish using the CO ₂ laser is the best.

  In the above example, the gloss layer 7 is formed by aurora vapor deposition, but may be formed using a simple colored transfer sheet (film), metal foil, or the like. Of course, as the method for forming the gloss layer 7, in addition to the above, an appropriate method such as transfer, vapor deposition, sputtering, plating, hot stamping, coating, or the like may be adopted. The color of the gloss layer 7 is not limited to a single color, and may be a color pattern composed of two or more colors. The gloss layer 7 may be transparent or opaque. When the gloss layer 7 is transparent, the gloss of the gloss layer 7 and the metal gloss of the lid frame 9 are combined in a case where the lid frame 9 has a metallic luster, which is more complicated and interesting. A color can be given to the three-dimensional pattern Q. If the gloss layer 7 is opaque, the gloss of the gloss layer 7 can be imparted to the three-dimensional pattern Q as it is, regardless of the color of the lid frame 9.

  Further, when the lid frame body 9 has a metallic luster, the plate-shaped decorative molded body 5 is simply fitted on the upper surface of the lid frame body 9 without forming the gloss layer 7. Since the same effect as the case where the gloss layer 7 is formed can be obtained, it is preferable. In the case of a design that does not require such a metallic luster, the gloss layer 7 is not formed, and the lid frame 9 also has no metallic luster.

  In addition, although the example of FIG. 1 all applies the present invention to a compact container, the object to which the present invention is applied is not limited to the container, and various resin molded products, or other members on the resin molded products. It can be applied to combined molded products. For example, it can be widely applied to mobile phones, stationery, home appliances, various cases, and the like.

  The method for producing a plate-like decorative molded body of the present invention can be used for the production of molded products that require decorative properties such as cosmetic containers and mobile phones.

DESCRIPTION OF SYMBOLS 1 Resin sheet 2 Adhesive thin film layer 4 Printing layer 5 Plate-shaped decorative molded body 6 Transparent board 7 Glossy layer 8 Decorative resin sheet Q Three-dimensional pattern Q 'removal pattern

Claims (4)

  The step of forming a three-dimensional pattern on at least a part of the surface of the transparent plate, and preparing an opaque resin sheet having an adhesive thin film layer on the back surface, removing the portion corresponding to the three-dimensional pattern of the opaque resin sheet, The process of obtaining a decorative resin sheet by forming a punched pattern, and the formation of a three-dimensional pattern on the transparent plate with the back surface of the decorative resin sheet on which the punched pattern is formed and the surface of the transparent plate facing each other And a step of aligning the cut-out pattern forming portion of the decorative resin sheet and integrating them using the adhesive thin film layer of the decorative resin sheet. Manufacturing method.   The method for producing a plate-like decorative molded body according to claim 1, wherein the opaque resin sheet is provided with a printed layer by performing silk printing on the surface of the resin sheet.   A plate-like decorative molded body obtained by the production method according to claim 1 or 2, wherein the back surface of the decorative resin sheet and the surface of the transparent plate face each other, and the three-dimensional pattern forming portion of the transparent plate; A plate-like decorative molded body characterized by being aligned with a cut pattern forming portion of a decorative resin sheet and integrated using an adhesive thin film layer of the decorative resin sheet.   A method for producing a plate-shaped decorative molded body according to claim 1 or 2, or a decorative resin sheet used for the plate-shaped decorative molded body according to claim 3, wherein the opaque resin sheet has an adhesive thin film layer on the back surface. A decorative resin sheet, wherein a portion corresponding to the three-dimensional pattern is removed to form a punched pattern.

Images