JP2008093897A - Manufacturing method of molded body with translucent pattern, and molded body with translucent pattern obtained thereby - Google Patents

Manufacturing method of molded body with translucent pattern, and molded body with translucent pattern obtained thereby Download PDF

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JP2008093897A
JP2008093897A JP2006276547A JP2006276547A JP2008093897A JP 2008093897 A JP2008093897 A JP 2008093897A JP 2006276547 A JP2006276547 A JP 2006276547A JP 2006276547 A JP2006276547 A JP 2006276547A JP 2008093897 A JP2008093897 A JP 2008093897A
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transparent
translucent
thin film
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molded
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JP5255757B2 (en
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Naoaki Inoue
直明 井上
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Key Tranding Co Ltd
紀伊産業株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an excellent molded body with a translucent pattern which enables the extremely easy formation of the translucent pattern and moreover can keep a part constituting the translucent pattern beautiful over a long period of time, and the molded body with the translucent pattern obtained thereby. <P>SOLUTION: A cover body 4 has a glossy part 10 and a translucent part 11 whose aluminum thin-film layer at the back side is removed at minute intervals by intermittent irradiation with laser light. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、成形面の少なくとも一部に半透明模様を有する半透明模様付成形体の製法およびそれによって得られる半透明模様付成形体に関するものである。   The present invention relates to a method for producing a translucent-patterned molded body having a translucent pattern on at least a part of a molding surface, and a translucent-patterned molded body obtained thereby.
化粧料を収容したコンパクト容器や口紅容器等には、単に機能性だけでなく、見栄えがよい、商品イメージを反映したデザインである、といった意匠性も要求される。このような要求に応える技術として、例えば、透明素材からなる容器の内表面に金属メッキ層による光沢を付与したもの(特許文献1参照)や、容器表面にパール光沢を付与したもの(特許文献2参照)があげられる。また、最近は、メタリック調の光沢を有しながら内側から見ると半透明になっているハーフミラー層を備えた容器(特許文献3参照)も提案されている。
特開2000−129448公報 特開平11−981号公報 特開2003−310343公報
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 to meet such a demand, for example, a technique in which a gloss by a metal plating layer is imparted to the inner surface of a container made of a transparent material (see Patent Document 1), or a technique in which a pearl gloss is imparted to the container surface (Patent Document 2). Reference). Recently, a container (see Patent Document 3) including a half mirror layer that has a metallic gloss and is translucent when viewed from the inside has also been proposed.
JP 2000-129448 A Japanese Patent Laid-Open No. 11-981 JP 2003-310343 A
ところで、最近、中が透けて見える仕様になっている商品が、「スケルトン仕様」として人気を博しており、化粧料容器においても、蓋全体が着色透明になっていたり、着色層を一部切り欠いて透かし模様を付与したものが多く出回っている。しかし、上記特許文献3においても記載されているように、例えばコンパクト容器の場合、蓋の内側に鏡を取り付けたものが多いため、あからさまに中が透けてみえると、上記鏡の取り付け部が表側に透けて美観を損なうという問題がある。   By the way, recently, products that have specifications that show through the interior have gained popularity as “skeleton specifications”, and even in cosmetic containers, the entire lid is colored and transparent, or some of the colored layers are Many of them are notched and have watermarks. However, as described in Patent Document 3 described above, for example, in the case of a compact container, since many mirrors are attached to the inside of the lid, when the inside is clearly seen through, the attachment part of the mirror is the front side. There is a problem of losing aesthetics through.
そこで、ある程度中が透け、軽やかな雰囲気を醸して興趣に富むものでありながら、中がはっきりとは見えない、半透明の模様領域(全面が半透明の場合も「半透明模様」という)を設ける技術について、関心が高まっている。   Therefore, a semi-transparent pattern area (even if the entire surface is translucent is also called a “translucent pattern”), although the interior is transparent to a certain extent and has a light atmosphere and is interesting, but the interior is not clearly visible. There is growing interest in the technology that is provided.
このような半透明模様は、例えば、成形体を透明プラスチックで成形し、その成形面に、蒸着量を制限する特殊な条件下で金属蒸着を行うことにより得ることができる。また、このようなハーフ蒸着膜を転写層として備えた転写シートを用いて、透明プラスチック成形体の所定面にこれを転写することにより、目的とする半透明模様を得ることができる。   Such a translucent pattern can be obtained, for example, by molding a molded body with a transparent plastic and performing metal deposition on the molding surface under special conditions that limit the deposition amount. Moreover, the target translucent pattern can be obtained by transferring this to the predetermined surface of a transparent plastic molding using the transfer sheet provided with such a half vapor deposition film as a transfer layer.
しかしながら、上記ハーフ蒸着膜を得るには、蒸着条件のコントロールが容易でなく、目的とする透明度のものを簡単に得ることができないという問題がある。また、より印象的な模様をつくるために、半透明部分と非透明部分を組み合わせたり、さらには、これらに凹凸模様や着色模様を組み合わせたりする場合、模様付与のための工程数が多くなり、煩雑な手間を要するという問題がある。   However, in order to obtain the above half-deposited film, there is a problem that it is not easy to control the deposition conditions, and the desired transparency cannot be easily obtained. In addition, in order to create a more impressive pattern, when combining a translucent part and a non-transparent part, and further combining these with a concavo-convex pattern or a colored pattern, the number of processes for pattern addition increases, There is a problem of requiring troublesome work.
本発明は、このような事情に鑑みなされたもので、非常に簡単に半透明模様を形成することができ、しかも上記半透明模様を構成する部分を長期にわたって美麗に維持することのできる、優れた半透明模様付成形体の製法と、それによって得られる半透明半透明模様付成形体の提供をその目的とする。   The present invention has been made in view of such circumstances, can form a translucent pattern very easily, and can maintain the portion constituting the translucent pattern beautifully over a long period of time. Another object of the present invention is to provide a method for producing a molded article with a translucent pattern and to provide a molded article with a translucent translucent pattern obtained thereby.
上記の目的を達成するため、本発明は、透明部材からなる成形面と、上記成形面の表面もしくは裏面の少なくとも一部に形成された非透明薄膜層とを有する成形体を準備し、上記非透明薄膜層の少なくとも一部の領域Aに対し、レーザ光を断続照射しながら走査し、上記領域Aの非透明薄膜層を微細な間隔で照射除去することにより、上記領域Aを半透明にする半透明模様付成形体の製法を第1の要旨とする。   In order to achieve the above object, the present invention provides a molded body having a molded surface made of a transparent member and a non-transparent thin film layer formed on at least a part of the front surface or the back surface of the molded surface. The region A of the transparent thin film layer is scanned while intermittently irradiating laser light, and the non-transparent thin film layer in the region A is irradiated and removed at a fine interval, thereby making the region A translucent. The manufacturing method of the molded body with a translucent pattern is the first gist.
また、本発明は、そのなかでも、特に、上記レーザ光の断続照射によって形成される照射除去部が、幅25〜100μmの微細な線状もしくは点状となり、互いに隣り合う照射除去部の間隔が50〜500μmとなるよう設定されている半透明模様付成形体の製法を第2の要旨とする。   In particular, the present invention has an irradiation removal portion formed by the intermittent irradiation of the laser beam in the form of a fine line or dot having a width of 25 to 100 μm, and the interval between the irradiation removal portions adjacent to each other is particularly large. A method for producing a translucent-patterned molded body set to 50 to 500 μm is set as a second gist.
さらに、本発明は、上記第1の要旨である製法によって得られる成形体であって、透明部材からなる成形面と、上記成形面の表面もしくは裏面の少なくとも一部に形成された非透明薄膜層とを有し、上記非透明薄膜層の少なくとも一部の領域Aが、走査されるレーザ光の断続照射によって、微細な間隔で照射除去されて、半透明になっている半透明模様付成形体を第3の要旨とする。   Furthermore, the present invention is a molded body obtained by the manufacturing method according to the first aspect, wherein the molded surface is formed of a transparent member, and the non-transparent thin film layer is formed on at least a part of the front surface or the back surface of the molded surface. And a semi-transparent patterned molded body in which at least a part of the region A of the non-transparent thin film layer is irradiated and removed at fine intervals by intermittent irradiation of a scanned laser beam. Is the third gist.
そして、本発明は、上記レーザ光の断続照射によって形成される照射除去部が、幅25〜100μmの微細な線状もしくは点状であり、互いに隣り合う照射除去部の間隔が50〜500μmである半透明模様付成形体を第4の要旨とする。   In the present invention, the irradiation removal portion formed by the intermittent irradiation of the laser beam is a fine line or dot having a width of 25 to 100 μm, and the interval between the irradiation removal portions adjacent to each other is 50 to 500 μm. The molded body with a translucent pattern is the fourth gist.
なお、本発明において、「透明」、「半透明」、「非透明」の各透明度は、光透過率等の数値で限定されるものではなく、同一平面上に形成されたそれぞれの領域が、互いに、他の領域の透明度と異なると認識される程度に透明度に差があれば足りる。互いの透明度の差によって、意識的に模様が付与されていることが視認されればよいからである。   In the present invention, the transparency of “transparent”, “semi-transparent”, and “non-transparent” is not limited by numerical values such as light transmittance, but the respective regions formed on the same plane, It suffices if there is a difference in transparency to the extent that they are recognized as being different from the transparency of other regions. This is because it is only necessary to visually recognize that the pattern is consciously given due to the difference in transparency.
本発明は、本来、一定の領域を凹状に除去加工したり、穴あけ加工するのに用いられていたレーザ光照射を、透明成形体表面(裏面)に形成された非透明薄膜層に対し、微細な間隔で断続的に行うことにより、ごく微細な照射除去部を多数分散形成して、その面を半透明にするようにしたものである。この製法によれば、半透明模様を、求める透明度で、非常に簡単に形成することができる。しかも、レーザ光照射領域を、予め設定しておけば、その半透明模様の形成領域を、高精度で繰り返し再現することができ、作業効率が高い。そして、非透明薄膜層による非透明部と半透明部、さらには、半透明部と、完全に非透明薄膜層を除去した透明部、といった透明度の異なる領域を組み合わせることによって、さまざまな印象の模様を付与することができ、興趣に富むデザインの半透明模様付成形体を得ることができる。   In the present invention, the laser beam irradiation that was originally used for removing or drilling a certain area in a concave shape is finely applied to the non-transparent thin film layer formed on the surface (back surface) of the transparent molded body. By performing intermittently at regular intervals, a large number of very fine irradiation removal portions are dispersedly formed, and the surface thereof is made translucent. According to this manufacturing method, a translucent pattern can be formed very easily with the required transparency. Moreover, if the laser beam irradiation area is set in advance, the semi-transparent pattern formation area can be repeatedly reproduced with high accuracy, and the working efficiency is high. Various patterns of impression can be obtained by combining areas with different transparency, such as non-transparent parts and semi-transparent parts by non-transparent thin film layers, and further translucent parts and transparent parts from which non-transparent thin film layers have been completely removed. Can be provided, and a molded article with a translucent pattern having an interesting design can be obtained.
そして、本発明のなかでも、特に、上記レーザ光の断続照射によって形成される照射除去部を、幅25〜100μmの微細な線状もしくは点状とし、互いに隣り合う照射除去部の間隔を50〜500μmとなるよう設定したものは、完全に透明な部分と、完全に非透明な部分との中間の、好ましい透明度の半透明模様を得ることができ、好適である。   And especially in this invention, the irradiation removal part formed by the intermittent irradiation of the said laser beam is made into a fine linear or dot shape with a width | variety of 25-100 micrometers, and the space | interval of the irradiation removal parts adjacent to each other is 50-. What was set so that it might become 500 micrometers can obtain the semi-transparent pattern of preferable transparency in the middle of a completely transparent part and a completely non-transparent part, and is suitable.
また、本発明の製法によって得られる半透明模様付成形体は、長期にわたって、その表面に付与された半透明模様が良好な状態を維持するものであり、付加価値の高い商品となる。しかも、上記半透明模様部分と他の部分に殆ど高低差がなく、手触りがよいという利点を有する。   Moreover, the semi-transparent pattern-formed body obtained by the production method of the present invention maintains a good state of the translucent pattern provided on the surface over a long period of time, and becomes a product with high added value. Moreover, there is an advantage that there is almost no difference in height between the translucent pattern portion and other portions, and the touch is good.
つぎに、本発明を実施するための最良の形態について説明する。   Next, the best mode for carrying out the present invention will be described.
図1は、本発明を実施するための最良の形態であるコンパクト容器の斜視図であり、図2は、そのX−X′断面図である。これらの図において、1は本体部で、その内側の向かって左側に設けられた凹部2には、ファンデーション等の化粧料が収容保持されるようになっている。また、向かって右側に設けられた凹部3には、化粧料を肌に塗布するためのパフが収容保持されるようになっている。   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 portion, and a cosmetic material such as a foundation is accommodated and held in a concave portion 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.
そして、上記本体部1の上部開口を蓋する蓋体4は、その分解斜視図である図4に示すように、蓋枠体6と、その上面全面に貼着されるホログラム箔7と、上記ホログラム箔7が貼着された蓋枠体6の上面に接合一体化される蓋板8とで構成されている。   And the cover body 4 which covers the upper opening of the said main-body part 1 is shown in FIG. 4 which is the disassembled perspective view, the hologram frame 7 stuck on the whole upper surface of the cover frame body 6, and the said It is comprised with the cover plate 8 joined and integrated on the upper surface of the lid frame 6 to which the hologram foil 7 was stuck.
上記蓋枠体6の後端部には、下向きにヒンジ部6aが突設されており、このヒンジ部6aが本体部1の後端部を係合することにより、図1において鎖線で示すように、蓋体4が上方に開くようになっている。また、上記蓋枠体6の内側面には、鏡5が貼着されている(図2参照)。   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).
上記蓋板8は、透明アクリル樹脂成形体からなる透明部材で構成されており、裏面にアルミニウム薄膜層9を有し表面からみて光沢を有する非透明の光沢部10と、同じく上記アルミニウム薄膜層9を有し、そのアルミニウム薄膜層9が後述する特殊な方法によって断続的に除去されて半透明に見える半透明部11の2つの領域が設けられている。そして、上記光沢部10と半透明部11にまたがって、正六角錐台形状の大小の凹部と、正六角錐形状の大小の凹部とを組み合わせてなる凹凸模様Pが付与されており、この凹凸模様Pを構成する凹部のうち、半透明部11に設けられた比較的大きな正六角錐台形状の凹部内のアルミニウム薄膜層9は除去されずにそのまま残され、小さい凹部P′は、他の半透明部11と同様、その凹部内が断続的に除去されて、半透明になっている。   The lid plate 8 is made of a transparent member made of a transparent acrylic resin molded body, and has an aluminum thin film layer 9 on the back surface and a non-transparent glossy portion 10 that is glossy when viewed from the front surface, and the aluminum thin film layer 9. The aluminum thin film layer 9 is intermittently removed by a special method to be described later, and two regions of the semi-transparent portion 11 that appears translucent are provided. And the uneven | corrugated pattern P which combines the large and small recessed part of a regular hexagonal frustum shape and the large and small recessed part of a regular hexagonal pyramid shape is given over the said glossy part 10 and the translucent part 11, This uneven | corrugated pattern P Of the relatively thin regular hexagonal frustum-shaped recess provided in the semitransparent portion 11 is left without being removed, and the small recess P ′ Similar to 11, the inside of the concave portion is intermittently removed to make it translucent.
上記半透明部11は、例えばつぎのようにして得ることができる。すなわち、まず、蓋板8を賦形するための金型を用意する。この金型の、蓋板8の裏面を賦形する側の面には、大小の正六角錐台形状の凹部と正六角錐形状の凹部で構成された凹凸模様を転写するための凹凸部も設けられている。そして、上記金型の、蓋板8の裏面を賦形する側に、アルミニウム箔の転写シートを配置させた状態で金型を閉じ、樹脂材料を射出することにより成形を行う(インモールド成形)。これにより、図3(a)に示すように、蓋板8の裏面側へのアルミニウム薄膜層9の一体化と、凹凸模様Pが付与された蓋板8の賦形を、同時に行うことができる。ただし、この状態では、凹凸模様Pが付与された蓋板8の裏面全体が、アルミニウム薄膜層9で被覆されている。   The translucent part 11 can be obtained, for example, as follows. That is, first, a mold for shaping the cover plate 8 is prepared. The surface of the mold on the side where the back surface of the lid plate 8 is shaped is also provided with a concavo-convex portion for transferring a concavo-convex pattern made up of large and small regular hexagonal truncated cone-shaped recesses and regular hexagonal pyramid-shaped recesses. ing. Then, the mold is closed by placing the aluminum foil transfer sheet on the side of the mold on which the back surface of the cover plate 8 is shaped, and molding is performed by injecting a resin material (in-mold molding). . Thereby, as shown to Fig.3 (a), integration of the aluminum thin film layer 9 to the back surface side of the cover board 8, and shaping of the cover board 8 to which the uneven | corrugated pattern P was provided can be performed simultaneously. . However, in this state, the entire back surface of the cover plate 8 provided with the concavo-convex pattern P is covered with the aluminum thin film layer 9.
そこで、図3(b)に示すように、上記アルミニウム薄膜層9のうち、半透明部11にしようとする領域のアルミニウム薄膜層9を、レーザ光の照射によって断続的に気化除去することにより、上記領域内に、アルミニウム薄膜層9が除去された、微細な照射除去部T(蓋板8の透明樹脂が露出する透明部分)を緻密な間隔で分散形成し、半透明部11を得ることができる。ただし、凹凸模様Pのうち、比較的大きいものの凹部内のアルミニウム薄膜層9は、美観上残している。   Therefore, as shown in FIG. 3 (b), the aluminum thin film layer 9 in the region to be the semitransparent portion 11 in the aluminum thin film layer 9 is intermittently vaporized and removed by laser light irradiation. Fine irradiation removal portions T (transparent portions where the transparent resin of the cover plate 8 is exposed) from which the aluminum thin film layer 9 has been removed are dispersed and formed at a fine interval in the above-described region to obtain the translucent portion 11. it can. However, the aluminum thin film layer 9 in the concave portion of the concavo-convex pattern P, which is relatively large, remains aesthetically pleasing.
なお、上記のレーザ光の照射には、従来から金属加工等に用いられるNd:YAGレーザ等を用いることができる。そして、上記アルミニウム薄膜層9等の薄膜層を除去する加工方法、加工条件は、用いるレーザ装置、除去対象となる薄膜の種類等に応じて適宜に選択することができる。   For the laser light irradiation, an Nd: YAG laser or the like conventionally used for metal processing or the like can be used. And the processing method and processing conditions which remove thin film layers, such as the said aluminum thin film layer 9, can be suitably selected according to the laser apparatus to be used, the kind of thin film to be removed, etc.
上記レーザ光照射による半透明部11の形成について、より詳細に説明する。すなわち、通常、レーザ光の照射は、目的とする領域に対し、レーザ光の連続的な照射、もしくは断続的な照射の繰り返しによって、目的とする領域内を完全に凹状に気化除去して凹形状を付与したり切欠き穴を形成したりするものであるが、本発明では、図5に示すように、半透明予定部に対し、レーザ光(矢印Lで示す)を断続的に照射しながら、太矢印Mで示す方向に走査する。これにより、半透明予定部のアルミニウム薄膜層9が、図6(a)に示すように、所定の幅Wで、断続的に走査方向に除去されて、多数の微細な照射除去部Tが形成される。そして、このレーザ光照射の走査方向を、小ピッチずつずらしながら断続照射を繰り返すことにより、半透明部11を得ることができる。   The formation of the translucent part 11 by the laser light irradiation will be described in more detail. That is, normally, laser light irradiation is performed by continuously evaporating and removing the target area into a concave shape by repeating continuous or intermittent laser light irradiation. In the present invention, as shown in FIG. 5, the laser beam (indicated by the arrow L) is intermittently applied to the semi-transparent portion as shown in FIG. Scan in the direction indicated by thick arrow M. As a result, as shown in FIG. 6A, the semi-transparent scheduled portion of the aluminum thin film layer 9 is intermittently removed in the scanning direction with a predetermined width W to form a large number of fine irradiation removal portions T. Is done. And the translucent part 11 can be obtained by repeating intermittent irradiation, shifting the scanning direction of this laser beam irradiation by small pitch.
ただし、上記レーザ光による照射除去部Tは、図6(a)に示すような長方形の他、同図(b)に示すような線状であってもよい。また、ごく微小な点々であってもよい。そして、上記半透明部11が、光沢部10等の非透明部に比べて、明らかに光透過率が高く、反対側が透けて「半透明」であることが明確に認識できるようにするには、上記照射除去部Tの幅Wを、25〜100μmに設定し、隣り合う照射除去部Tの間隔Sを、縦、横等の方向に関係なく、50〜500μmに設定することが好適である。すなわち、上記照射除去部Tの幅Wおよび互いの間隔Sが上記範囲を外れると、レーザ光照射の制御が困難になったり、半透明性が乏しくなったりするおそれがあり、好ましくない。   However, the irradiation removal portion T by the laser beam may be a linear shape as shown in FIG. 6B in addition to the rectangular shape as shown in FIG. Also, it may be very small points. To make it possible to clearly recognize that the translucent portion 11 has a clearly higher light transmittance than the non-transparent portion such as the glossy portion 10 and the other side is “translucent”. It is preferable that the width W of the irradiation removal portion T is set to 25 to 100 μm, and the interval S between the adjacent irradiation removal portions T is set to 50 to 500 μm regardless of the vertical and horizontal directions. . That is, if the width W of the irradiation removal portion T and the interval S between the two are out of the above ranges, it may be difficult to control the laser beam irradiation or the semi-transparency may be poor.
このようにして得られた半透明部11を表面側から見ると、図7に示すように、蓋板8の裏面側から付与された大小の正六角錘台形状の凹部からなる凹凸模様Pが、あたかも花が並んだような模様になっており、各凹部内のテーパのある6つの側面と底面が、それぞれ裏面のアルミニウム薄膜層9によって光沢が与えられ、しかも各面の光沢面が、それぞれ異なる向きに光を反射するため、興趣に富む。そして、その周囲の部分が、上記凹凸模様Pおよび光沢部10(図1参照)とは全く印象の異なる半透明になっているため、両者の対比によって、光沢部分がより鮮明に見える。   When the translucent portion 11 obtained in this way is viewed from the front surface side, as shown in FIG. 7, the uneven pattern P composed of large and small regular hexagonal frustum-shaped concave portions provided from the back surface side of the cover plate 8 is formed. The patterns are as if the flowers are lined up, and the six tapered sides and bottom in each recess are glossed by the aluminum thin film layer 9 on the back, and the glossy side of each side is It is interesting because it reflects light in different directions. And since the surrounding part is the semi-transparency which has a completely different impression from the said uneven | corrugated pattern P and the glossy part 10 (refer FIG. 1), a glossy part looks clearer by contrast of both.
そして、上記半透明部11が形成された蓋板8は、前記ホログラム箔7が貼着された蓋枠体6と接合一体化されている(図1、図4参照)。なお、上記接合は、上記ホログラム箔7の上面もしくは蓋板8の裏面に、上記半透明部11と重ならないよう接着剤を塗布したり、接着テープ等を用いることによって行われる。もちろん、両者に係合部を設けて互いに係合させることにより、両者を接合一体化しても差し支えない。   The lid plate 8 on which the translucent portion 11 is formed is joined and integrated with the lid frame 6 to which the hologram foil 7 is adhered (see FIGS. 1 and 4). The bonding is performed by applying an adhesive on the upper surface of the hologram foil 7 or the back surface of the cover plate 8 so as not to overlap the translucent portion 11 or using an adhesive tape or the like. Of course, both of them may be joined and integrated by providing engaging portions and engaging each other.
この構成によれば、上記蓋板8の半透明部11から、その下のホログラム箔7が透けて見え、しかも、半透明部11に形成された微細な照射除去部Tによって、上記ホログラム箔7による虹色の光が微妙な陰影を伴うため、従来にない、美麗な印象を与える。そして、上記半透明部11の、アルミニウム薄膜層9で被覆された凹凸模様Pも、その光沢ある凹部内の反射面によって、非常に立体的な光沢模様となる。一方、光沢部10は、滑らかな光沢感があり、この光沢面と、上記ホログラム箔7を透かした特殊な半透明部11の対比によって、非常に興趣に富む外観の蓋体4となる。   According to this configuration, the hologram foil 7 underneath can be seen through from the translucent portion 11 of the lid plate 8, and the hologram foil 7 is formed by the fine irradiation removal portion T formed in the translucent portion 11. Because the rainbow-colored light with subtle shadows, it gives an unprecedented beautiful impression. And the uneven | corrugated pattern P of the said translucent part 11 coat | covered with the aluminum thin film layer 9 also becomes a very three-dimensional glossy pattern by the reflective surface in the glossy recessed part. On the other hand, the glossy part 10 has a smooth glossy feeling, and the contrast of the glossy surface and the special translucent part 11 through the hologram foil 7 makes the lid 4 with a very interesting appearance.
そして、上記半透明部11と光沢部10とは、透明な蓋板8の裏面側から形成されており、蓋板8の表面自体は、本来の平滑性が維持されているため、これらの模様が経時的に摩耗・損傷したり汚れたりすることがない。また、上記半透明部11は、レーザ光の照射によって、簡単に形成することができ、大きなコストアップや製造ロットの制約につながりにくいという利点を有する。しかも、半透明部11の透明度や形成領域のコントロールが容易で、目的の品質のものを、高い精度および高い作業効率で製造することができるという利点を有する。   The translucent part 11 and the glossy part 10 are formed from the back side of the transparent cover plate 8, and the surface of the cover plate 8 itself maintains its original smoothness. Will not be worn, damaged or soiled over time. Further, the translucent portion 11 can be easily formed by irradiation with laser light, and has an advantage that it is difficult to lead to a large cost increase and restrictions on a production lot. In addition, the transparency and formation area of the translucent portion 11 can be easily controlled, and the desired quality can be manufactured with high accuracy and high work efficiency.
さらに、上記蓋板8の裏面は、半透明部11において微細な照射除去部Tが多数形成されているものの、その照射除去部Tの周囲には、ごく細いアルミニウム薄膜層9が残っているとともに、光沢部10では、アルミニウム薄膜層9がそのまま形成されており、さらに、ホログラム箔7が貼着された蓋枠体6と接合一体化されているため、これらの各部材の厚みを比較的薄く設定しても、蓋体4の全体としては、高い強度を得ることができ、この部分を、薄くコンパクトなデザインにすることができる。   Further, the back surface of the cover plate 8 has a number of fine irradiation removal portions T formed in the translucent portion 11, but a very thin aluminum thin film layer 9 remains around the irradiation removal portion T. In the glossy portion 10, the aluminum thin film layer 9 is formed as it is, and furthermore, since it is joined and integrated with the lid frame body 6 to which the hologram foil 7 is adhered, the thickness of each of these members is relatively thin. Even if it is set, the lid 4 as a whole can have high strength, and this portion can be made thin and compact.
なお、上記の例において、蓋板8を構成する透明部材は、従来から容器等の成形品に用いられる透明部材であれば、どのようなものであってもよく、アクリル樹脂の他、例えば、ポリスチレン、ABS樹脂、ポリカーボネート等があげられる。そして、その透明な成形面の裏面に形成されたアルミニウム薄膜層9を断続的に除去して半透明にするためには、透明でなければならないが、無色である必要はなく、多少着色されていても、反対側が透けて見えるものであれば差し支えはない。   In the above example, the transparent member constituting the cover plate 8 may be any transparent member as long as it is conventionally used for molded products such as containers. Examples thereof include polystyrene, ABS resin, and polycarbonate. And in order to remove the aluminum thin film layer 9 formed on the back surface of the transparent molding surface intermittently and make it semi-transparent, it must be transparent, but it does not need to be colorless and is slightly colored. However, there is no problem as long as the other side can be seen through.
また、上記蓋板8の裏面に一体的に形成される上記アルミニウム薄膜層9は、インモールド成形の他、予め凹凸模様が形成された蓋板8の裏面に、蒸着、スパッタリング、メッキ、ホットスタンプ等によって、上記凹凸模様と一体的にアルミニウム薄膜層9を形成することもできる。   The aluminum thin film layer 9 integrally formed on the back surface of the cover plate 8 is vapor-deposited, sputtered, plated, hot stamped on the back surface of the cover plate 8 on which a concavo-convex pattern has been formed in addition to in-mold molding. For example, the aluminum thin film layer 9 can be formed integrally with the uneven pattern.
そして、本発明において、蓋板8の裏面に形成される薄膜層は、上記の例のように、アルミニウムに限らず、ステンレス等を用いてもよい。さらに、非透明であれば、金属に限らず、各種のコーティング層や樹脂フィルムを用いてもよい。ただし、強度や薄膜層形成面の平滑性維持の点から、金属薄膜を用いることが好適である。   In the present invention, the thin film layer formed on the back surface of the cover plate 8 is not limited to aluminum as in the above example, and may be stainless steel or the like. Furthermore, as long as it is non-transparent, not only a metal but various coating layers and resin films may be used. However, it is preferable to use a metal thin film from the viewpoint of strength and smoothness of the surface on which the thin film layer is formed.
なお、上記の例では、凹凸模様Pを構成する各凹部の形状を、正六角錐形状や正六角錐台形状にしたが、これは、凹部の各側面が互いに向きの異なるテーパ面となり、光の反射が複雑になって立体的な印象が強くなることを考慮したものである。このように、多角錘形状や、多角錘台形状にすると、その凹部各面が、裏面側のアルミニウム薄膜層9によって互いに異なる向きに反射する光沢面となり、興趣に富む凹凸模様Pが得られるが、凹凸模様Pの形状は、特に限定するものではない。また、このような凹凸模様P自体がなくてもよい。   In the above example, the shape of each concave portion constituting the concavo-convex pattern P is a regular hexagonal pyramid shape or a regular hexagonal truncated pyramid shape. Considering that the three-dimensional impression becomes stronger due to the complexity. As described above, when the polygonal pyramid shape or the polygonal truncated pyramid shape is used, each surface of the concave portion becomes a glossy surface that is reflected in different directions by the aluminum thin film layer 9 on the back surface side, and an interesting uneven pattern P is obtained. The shape of the concavo-convex pattern P is not particularly limited. Further, such a concavo-convex pattern P itself may not be present.
例えば、上記の例のように、蓋板8の裏面側から凹部形状を付与するのではなく、表側から凹部形状を付与してもよい。あるいは、図8に示すように、表側に、凸形状による凹凸模様Qを付与するようにしても差し支えない。   For example, as in the above example, the concave shape may be given from the front side instead of the concave shape from the back side of the cover plate 8. Alternatively, as shown in FIG. 8, it may be possible to provide a concavo-convex pattern Q with a convex shape on the front side.
また、蓋板8に凹凸模様P(Q)を形成せず、非透明薄膜層で表面もしくは裏面が被覆された非透明部(前記の例の光沢部10に相当)と、上記の例のようにレーザ光の断続照射によって上記非透明薄膜層が微細に分布除去された半透明部11と、もともと非透明薄膜層が形成されていないか、完全に非透明薄膜層が除去されて透明部材が露出した透明部とが、適宜の配置で組み合わせられて模様が付与されたものであってもよい。   In addition, a non-transparent portion (corresponding to the glossy portion 10 in the above example) in which the concave or convex pattern P (Q) is not formed on the cover plate 8 and the front or back surface is covered with a non-transparent thin film layer, and the above example The semi-transparent portion 11 in which the non-transparent thin film layer is finely distributed and removed by the intermittent irradiation of the laser beam, and the non-transparent thin film layer is not formed originally or the transparent member is completely removed. The exposed transparent portion may be combined with an appropriate arrangement and provided with a pattern.
例えば、図9(a)は、蓋板8の表面に、非透明部10′と半透明部11とを組み合わせた模様が形成されている例である。他の構成は、前記の例と同様であり、その説明を省略する(以下同じ)。   For example, FIG. 9A is an example in which a pattern in which the non-transparent portion 10 ′ and the translucent portion 11 are combined is formed on the surface of the lid plate 8. Other configurations are the same as those in the above example, and the description thereof is omitted (the same applies hereinafter).
また、図9(b)は、蓋板8の全面が、半透明部11で形成されている例である。これものも、半透明模様といえるが、さらに変化をつけたい場合は、この半透明部11を形成する際、レーザ光照射の断続の間隔を適宜変化させることにより、透明度が場所ごとに異なるようにして、濃淡のあるグラデーション模様をつけることができる。   FIG. 9B shows an example in which the entire surface of the cover plate 8 is formed of a semitransparent portion 11. Although this can also be said to be a semi-transparent pattern, when it is desired to further change, when the semi-transparent portion 11 is formed, the transparency varies depending on the location by appropriately changing the interval of intermittent laser light irradiation. In this way, a gradation pattern with shading can be added.
さらに、図10(a)は、半透明部11と、完全に透明な透明部20とを組み合わせた模様が形成されている例、同図(b)は、非透明部10′と、半透明部11と、透明部20とが組み合わせられている例である。これらの模様も、レーザ光照射による非透明薄膜層の除去パターンを、適宜にコントロールすることにより、簡単に得ることができる。   Further, FIG. 10A shows an example in which a pattern in which a translucent portion 11 and a completely transparent transparent portion 20 are combined is formed, and FIG. 10B shows a non-transparent portion 10 ′ and a translucent portion. This is an example in which the part 11 and the transparent part 20 are combined. These patterns can also be easily obtained by appropriately controlling the removal pattern of the non-transparent thin film layer by laser light irradiation.
また、前記の例では、半透明部11から透かして見える下の面(蓋枠体6の上面、図2、図4参照)に、ホログラム箔7を貼着して、これを半透明部11から透かして見せるようにしているが、蓋枠体6と蓋板8の間に、ホログラム箔7を挟み込むだけであっても差し支えない。あるいは、上記ホログラム箔7を、蓋板8の、アルミニウム薄膜層9が形成された裏面側に、直接貼着するようにしてもよい。この場合、蓋体4を、蓋枠体6と蓋板8の2つの部材に分ける必要がなく、単一の部材にすることができる。   In the above example, the hologram foil 7 is attached to the lower surface (see the upper surface of the lid frame 6, see FIGS. 2 and 4) seen through the translucent portion 11, and this is attached to the translucent portion 11. However, there is no problem even if the hologram foil 7 is simply sandwiched between the lid frame body 6 and the lid plate 8. Alternatively, the hologram foil 7 may be directly attached to the back side of the cover plate 8 on which the aluminum thin film layer 9 is 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.
また、ホログラム箔7に代えて、オーロラ調シートやオパール調シートといった、見る角度によって色調の変わる光沢シートを用いるようにしても、同様の効果を得ることができる。さらに、これらの光沢シートに代えて、単なる着色シートを用いてもよい。なお、上記着色シートを貼着するのに代えて、着色塗料を塗工して着色層を形成するようにしてもよい。あるいは、ホログラム箔7や着色シートを用いたり、着色層等を形成したりすることなく、半透明部11から、その下の部材自体の色や、容器に収容される内容物の色を見せるようにしても差し支えない。   The same effect can be obtained by using a glossy sheet whose color tone changes depending on the viewing angle, such as an aurora tone sheet or an opal tone sheet, instead of the hologram foil 7. Furthermore, instead of these glossy sheets, simple colored sheets may be used. In addition, it may replace with sticking the said colored sheet | seat and may make it form a colored layer by applying a colored coating material. Alternatively, without using the hologram foil 7 or a colored sheet, or forming a colored layer or the like, the color of the member itself below or the color of the contents accommodated in the container can be shown from the translucent portion 11. But it doesn't matter.
なお、上記ホログラム箔7や着色シートを用いる場合、これらを、蓋板8の裏面側に直接当てるのではなく、一定の空間を隔てて対峙させるようにしてもよい。例えば、図11に示すように、前記の例と同様、半透明部11が形成された蓋体4′と、中蓋30とを有するコンパクト容器等において、この中蓋30の上に、上記ホログラム箔7や着色シート等を挟むだけでも、前記の例と同様の効果を得ることができる。また、図12に示すように、上記中蓋30の上面に、直接ホログラム箔7や着色シートを貼着したり、着色層を形成したりしても差し支えない。   In the case of using the hologram foil 7 or the colored sheet, they may be opposed to each other with a certain space, instead of directly contacting the back surface side of the cover plate 8. For example, as shown in FIG. 11, as in the above example, in a compact container or the like having a lid 4 ′ having a semi-transparent portion 11 and an inner lid 30, the hologram is placed on the inner lid 30. The same effect as in the above example can be obtained only by sandwiching the foil 7 or the colored sheet. Moreover, as shown in FIG. 12, the hologram foil 7 or a colored sheet may be directly attached to the upper surface of the inner lid 30 or a colored layer may be formed.
さらに、前記の例では、蓋板8の裏面側にアルミニウム薄膜層9を形成したが、アルミニウム薄膜層9等の非透明薄膜層を、蓋板8の表面側に形成し、この非透明薄膜層に、表面側からレーザ光の断続照射を行い、その少なくもと一部の領域を、半透明部11にすることもできる。   Further, in the above example, the aluminum thin film layer 9 is formed on the back surface side of the cover plate 8, but a non-transparent thin film layer such as the aluminum thin film layer 9 is formed on the front surface side of the cover plate 8, and this non-transparent thin film layer is formed. In addition, the laser beam can be intermittently irradiated from the surface side, and at least a part of the region can be made the translucent portion 11.
なお、これらの例は、本発明をコンパクト容器に適用したものであるが、容器の種類や形状は、これに限るものではない。   In these examples, the present invention is applied to a compact container, but the type and shape of the container are not limited thereto.
本発明の一実施例の斜視図である。It is a perspective view of one Example of this invention. 図1のX−X′断面図である。It is XX 'sectional drawing of FIG. (a)は上記実施例における凹凸模様の形成方法の説明図、(b)は上記実施例における半透明部の形成方法の説明図である。(A) is explanatory drawing of the formation method of the uneven | corrugated pattern in the said Example, (b) is explanatory drawing of the formation method of the translucent part in the said Example. 上記実施例における蓋体の分解斜視図である。It is a disassembled perspective view of the cover body in the said Example. 上記実施例における半透明部の形成方法の詳細説明図である。It is detailed explanatory drawing of the formation method of the translucent part in the said Example. (a)は上記実施例における半透明部の説明図、(b)はその変形例の説明図である。(A) is explanatory drawing of the translucent part in the said Example, (b) is explanatory drawing of the modification. 上記実施例における蓋板の説明図である。It is explanatory drawing of the cover plate in the said Example. 本発明の他の実施例における蓋板の説明図である。It is explanatory drawing of the cover plate in the other Example of this invention. (a)、(b)は、それぞれ本発明のさらに他の実施例における蓋板の説明図である。(A), (b) is explanatory drawing of the cover plate in the further another Example of this invention, respectively. (a)、(b)は、それぞれ本発明の他の実施例における蓋板の説明図である。(A), (b) is explanatory drawing of the cover plate in the other Example of this invention, respectively. 本発明の他の実施例の説明図である。It is explanatory drawing of the other Example of this invention. 本発明のさらに他の実施例の説明図である。It is explanatory drawing of other Example of this invention.
符号の説明Explanation of symbols
4 蓋体
10 光沢部
11 半透明部
4 Lid 10 Glossy part 11 Translucent part

Claims (4)

  1. 透明部材からなる成形面と、上記成形面の表面もしくは裏面の少なくとも一部に形成された非透明薄膜層とを有する成形体を準備し、上記非透明薄膜層の少なくとも一部の領域Aに対し、レーザ光を断続照射しながら走査し、上記領域Aの非透明薄膜層を微細な間隔で照射除去することにより、上記領域Aを半透明にすることを特徴とする半透明模様付成形体の製法。   A molded body having a molding surface made of a transparent member and a non-transparent thin film layer formed on at least a part of the front surface or the back surface of the molding surface is prepared, and at least a region A of the non-transparent thin film layer Scanning while intermittently irradiating laser light, and removing the non-transparent thin film layer in the region A at fine intervals to make the region A translucent, Manufacturing method.
  2. 上記レーザ光の断続照射によって形成される照射除去部が、幅25〜100μmの微細な線状もしくは点状となり、互いに隣り合う照射除去部の間隔が50〜500μmとなるよう設定されている請求項1記載の半透明模様付成形体の製法。   The irradiation removal portion formed by the intermittent irradiation of the laser beam is set to be a fine line or a dot having a width of 25 to 100 μm, and the interval between the irradiation removal portions adjacent to each other is set to 50 to 500 μm. A process for producing a molded article with a translucent pattern according to 1.
  3. 請求項1記載の製法によって得られる成形体であって、透明部材からなる成形面と、上記成形面の表面もしくは裏面の少なくとも一部に形成された非透明薄膜層とを有し、上記非透明薄膜層の少なくとも一部の領域Aが、走査されるレーザ光の断続照射によって、微細な間隔で照射除去されて、半透明になっていることを特徴とする半透明模様付成形体。   It is a molded object obtained by the manufacturing method of Claim 1, Comprising: It has the molding surface which consists of a transparent member, and the non-transparent thin film layer formed in at least one part of the surface or back surface of the said molding surface, The said non-transparency A semi-transparent patterned molded body, wherein at least a part of the region A of the thin film layer is irradiated and removed at fine intervals by intermittent irradiation of a scanned laser beam.
  4. 上記レーザ光の断続照射によって形成される照射除去部が、幅25〜100μmの微細な線状もしくは点状であり、互いに隣り合う照射除去部の間隔が50〜500μmである請求項3記載の半透明模様付成形体。   The half of the irradiation removal portion formed by the intermittent irradiation of the laser beam is a fine line or a dot having a width of 25 to 100 µm, and the interval between the irradiation removal portions adjacent to each other is 50 to 500 µm. Molded body with transparent pattern.
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JP2003150027A (en) * 2001-11-08 2003-05-21 Sankyo Seiki Mfg Co Ltd Hologram sheet for metallic vapor deposition type hot printing, and its processing method
JP2005153464A (en) * 2003-11-28 2005-06-16 Key Tranding Co Ltd Vessel with surface pattern
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JP2010051979A (en) * 2008-08-26 2010-03-11 Key Tranding Co Ltd Method for producing decorative molded body
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KR20160149338A (en) * 2015-06-17 2016-12-28 옴니시스템 주식회사 Cosmetic Case with High Quality Images and Method of Prodicing the Same
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KR102095158B1 (en) * 2019-08-01 2020-03-30 봉선수 Cosmetic container

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