JPH07121550B2 - Method for manufacturing molded article having hologram - Google Patents
Method for manufacturing molded article having hologramInfo
- Publication number
- JPH07121550B2 JPH07121550B2 JP62018910A JP1891087A JPH07121550B2 JP H07121550 B2 JPH07121550 B2 JP H07121550B2 JP 62018910 A JP62018910 A JP 62018910A JP 1891087 A JP1891087 A JP 1891087A JP H07121550 B2 JPH07121550 B2 JP H07121550B2
- Authority
- JP
- Japan
- Prior art keywords
- hologram
- molding
- resin
- sheet
- molded product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title description 14
- 238000000465 moulding Methods 0.000 claims description 43
- 229920005989 resin Polymers 0.000 claims description 38
- 239000011347 resin Substances 0.000 claims description 38
- 239000002985 plastic film Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000007666 vacuum forming Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 238000003856 thermoforming Methods 0.000 description 9
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000002966 varnish Substances 0.000 description 6
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- 238000005323 electroforming Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/722—Decorative or ornamental articles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0276—Replicating a master hologram without interference recording
- G03H1/028—Replicating a master hologram without interference recording by embossing
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は表面にホログラムを有する成形品の製造方法に
関し、さらに詳しくはプラスチックシートから熱成形に
よって、成形と同時にホログラムを有した容器などの成
形品が得られるものであり、この発明によって得られる
製品は、ホログラムの持つ美しさ、立体感が付加された
成形品となり、包装容器、ギフト，ノベルティ，玩具と
して、またディスプレイ用途など、巾広く利用が可能で
ある。Description: TECHNICAL FIELD The present invention relates to a method for producing a molded article having a hologram on its surface, and more particularly, to thermoforming a plastic sheet to mold a container having a hologram at the same time as molding. The product obtained by the present invention is a molded product to which the beauty and three-dimensional effect of the hologram are added, and is widely used as a packaging container, gift, novelty, toy, and for display applications. Is possible.
平滑なプラスチック材料にエンボス加工した表面レリー
フ型のホログラムを作製する方法は、コスト的にみて比
較的安価にでき、また、大量生産に適している為、従
来、ディスプレイ関連や広告などの分野では、アイキャ
ッチャー的効果、立体感による意外性の効果を狙ってホ
ログラムが利用されており、書籍、雑誌の表紙、押し絵
として、あるいはギフト、ノベルティとしても用いら
れ、更にはホログラムの偽造が難しいことからクレジッ
トカードなどのセキュリティ用途に利用されている。The method of producing a surface relief type hologram embossed on a smooth plastic material can be relatively inexpensive in terms of cost and is suitable for mass production, so in the past, in fields such as display related and advertisement, Holograms are used for the purpose of eye catcher effect and unexpected effect due to three-dimensional effect, and they are also used as the cover of books, magazines, push pictures, gifts, novelties, and because it is difficult to forge holograms, credits It is used for security purposes such as cards.
従来、上述したホログラムを真空成形や圧空成形などの
熱成形によって得られた、プラスチック成形品に付ける
手法としては、ホログラムを有した転写箔を用いて、ホ
ットスタンプして成形品表面に設ける方法がとられてい
る。しかし、熱成形された成形品に、転写によってホロ
グラムを設ける方法は、転写箔が非常に高価である点、
立体形状の成形物にホットスタンプすることが技術的に
難しいなどの欠点を有していた。Conventionally, as a method of attaching the above hologram to a plastic molded article obtained by thermoforming such as vacuum molding or pressure molding, a method of hot stamping using a transfer foil having a hologram is provided on the surface of the molded article. It is taken. However, the method of providing the hologram by transfer to the thermoformed molded product is that the transfer foil is very expensive,
It has a drawback that it is technically difficult to hot stamp a three-dimensional molded article.
また、従来、熱成形において成形型表面に立体画などの
凹凸模様を設けて成形品の外面にエンボス柄を転写する
方法は知られているが、ホログラムの様な700〜1500本/
mm程度の超微細なパターンを成形したものは得られてい
ない。Further, conventionally, a method of transferring an embossed pattern to the outer surface of a molded product by providing a concave-convex pattern such as a three-dimensional image on the surface of a molding die in thermoforming is known, but 700 to 1500 such as a hologram /
No ultra-fine pattern of about mm is obtained.
尚、予めレリーフ型ホログラムをエンボス成形した、プ
ラスチックシートを熱成形する手法は、熱成形時の加熱
にて画像が消失してしまうし、更に、プラスチックシー
ト表面へ熱成形時の加熱では軟化しない程度の耐熱性を
有した樹脂からなるホログラム層を設けたシートを熱成
形する方法も考えられるが、実際はホログラム層に成形
性がない為、剥離やクラックが発生するなどの問題があ
り不可能であった。In addition, the method of thermoforming a plastic sheet in which a relief type hologram is embossed in advance is such that the image disappears due to heating during thermoforming, and the plastic sheet surface is not softened by heating during thermoforming. Although a method of thermoforming a sheet provided with a hologram layer made of a resin having heat resistance of is possible, in reality, since the hologram layer has no formability, there is a problem such as peeling or cracking, which is impossible. It was
また、熱可塑製樹脂（プラスチックシート）の表面に形
成されたレリーフ型ホログラムは、それだけでもホログ
ラム効果を発現するが、前記樹脂が明るい色だと、樹脂
自体の色にかき消されてホログラム効果は殆ど視覚する
ことができないため、一般に透明な樹脂が用いられてい
る。Further, the relief type hologram formed on the surface of the thermoplastic resin (plastic sheet) exhibits the hologram effect by itself, but when the resin is a bright color, the hologram effect is almost erased by being drowned out by the color of the resin itself. A transparent resin is generally used because it is invisible.
透明樹脂に形成されたホログラムも、観察する環境の明
るさにかき消されて、それだけでは視認が容易であると
は言えず、ホログラム効果を視覚することを容易とする
ために、ホログラムの表面に金属反射層を設けることの
ような工夫が要求されている。The hologram formed on the transparent resin is also not easily visible by itself because it is drowned out by the brightness of the environment to be observed.In order to make it easier to see the hologram effect, the hologram surface is made of metal. A device such as providing a reflection layer is required.
本発明は以上の事情に鑑み検討の結果得られたものであ
る。The present invention has been obtained as a result of studies in view of the above circumstances.
すなわち本発明は、 マンセル区分４以下の不透明暗色樹脂であるプラスチッ
クシートの片面に、軟化点が80℃以下の樹脂層を形成
し、成形用積層シートとした後、前記積層シートを加熱
軟化させ、 空気圧を使用した圧空成形，または真空成形により、前
記積層シートを所望形状に成形するのと同時に、 成形型の成形面に配置したレリーフホログラム用スタン
パによって、前記積層シートの前記樹脂層側を加圧する
ことを特徴とする表面にホログラムを有する成形品の製
造方法である。圧空成形または真空成形にて熱可塑性樹
脂からなる成形用プラスチックシートは単独でもホログ
ラムを有した成形品を得ることは可能であるが、ホログ
ラムの有する凹凸は非常に微細なものである為、原版の
レリーフ型ホログラムを忠実に安定して作成することは
困難であった為、本発明者等はホログラムを形成する樹
脂層として種々検討した結果、低分子量樹脂からなる塗
料を塗布形成した樹脂層が、熱溶融して得られる成形用
プラスチックシートに比較して熱成形時の熱流動性が高
く、特に軟化点が80℃以下の樹脂において優れた成形が
出来ることを知見したものである。That is, according to the present invention, a plastic layer having a softening point of 80 ° C. or less is formed on one surface of a plastic sheet which is an opaque dark resin of Munsell division 4 or less, and after forming a laminated sheet for molding, the laminated sheet is softened by heating. The laminated sheet is formed into a desired shape by pressure forming using air pressure or vacuum forming, and at the same time, the resin layer side of the laminated sheet is pressed by a relief hologram stamper arranged on the forming surface of the forming die. A method for producing a molded article having a hologram on the surface, which is characterized by the above. It is possible to obtain a molded product having a hologram by itself using a molding plastic sheet made of a thermoplastic resin by pressure molding or vacuum molding, but the unevenness of the hologram is very fine, so the original plate Since it was difficult to faithfully and stably create a relief type hologram, the inventors of the present invention conducted various studies as a resin layer for forming a hologram, and as a result, a resin layer formed by applying a coating material of a low molecular weight resin was The inventors have found that the resin has a higher heat fluidity during thermoforming than a plastic sheet for molding obtained by heat melting, and that excellent molding can be performed especially with a resin having a softening point of 80 ° C or lower.
本発明について以下図面を用いて更に詳しく説明する。
第１図は本発明による成形シート１の断面図を概略的に
示したものであり、成形用プラスチックシート２の片面
へ80℃以下の軟化点を有した樹脂層３を配した構成から
なる。成形用プラスチックシート１は塩化ビニル樹脂、
ポリカーボネイト，ポリスチレン，アクリル樹脂，ポリ
プロピレンなどが使用出来る。樹脂層３は塩化ビニル−
酢酸ビニル共重合体、エチレン−酢酸ビニル共重合体、
アクリル樹脂、塩素化ポリプロピレン樹脂、ポリアミド
樹脂などをバインダー樹脂とした塗料をグラビア法，ロ
ールコート法，ナイフコート法など公知の手法にて塗布
乾燥してなる厚さ１〜30μｍ程度の樹脂層である。The present invention will be described in more detail below with reference to the drawings.
FIG. 1 schematically shows a cross-sectional view of a molded sheet 1 according to the present invention, which is composed of a plastic sheet 2 for molding on one side of which a resin layer 3 having a softening point of 80 ° C. or less is arranged. The plastic sheet 1 for molding is a vinyl chloride resin,
Polycarbonate, polystyrene, acrylic resin, polypropylene, etc. can be used. Resin layer 3 is vinyl chloride
Vinyl acetate copolymer, ethylene-vinyl acetate copolymer,
A resin layer having a thickness of about 1 to 30 μm, which is formed by applying and drying a paint using an acrylic resin, a chlorinated polypropylene resin, a polyamide resin, or the like as a binder resin by a known method such as a gravure method, a roll coating method, or a knife coating method. .
第２図は本発明の圧空成形による製造を概略的に示した
断面図である。上述した成形シートをクランプ４にて固
定し、加熱軟化させた後、成形型５と密閉箱６で挟み、
密閉箱６より圧空を吹き込むと同時に成形型５より排気
して成形型５に成形シートを密着させる。この時、成形
型５に設けられたホログラムスタンパ７に成形シートの
樹脂層３も同時に密着しエンボスされる。次に成形シー
ト１は冷却され、成形型５から剥して成形を完了する。FIG. 2 is a sectional view schematically showing the production by pressure forming of the present invention. After fixing the above-mentioned forming sheet with the clamp 4 and heating and softening it, it is sandwiched between the forming die 5 and the closed box 6,
At the same time as the compressed air is blown from the closed box 6, it is exhausted from the molding die 5 to bring the molding sheet into close contact with the molding die 5. At this time, the resin layer 3 of the molding sheet is also closely adhered to the hologram stamper 7 provided on the molding die 5 and embossed. Next, the molding sheet 1 is cooled and peeled off from the molding die 5 to complete the molding.
成形型５は一般の熱成形で使用される木型、金型、樹脂
型、石こう型が使用できる。As the molding die 5, a wooden mold, a metal mold, a resin mold, or a gypsum mold used in general thermoforming can be used.
ホログラムスタンパ７は700〜1500本/mm程度の周期的な
間隔を有した回折格子によりなるレリーフ型ホログラム
であり、ニッケル電鋳にて作成されたものなどが使用で
きる。The hologram stamper 7 is a relief type hologram composed of a diffraction grating having a periodic interval of about 700 to 1500 lines / mm, and one made by nickel electroforming can be used.
第３図は本発明によって得られた成形品の断面図を示し
たものであり、表面にホログラム８がエンボスされ、透
明性の高い成形用プラスチックシート２及び樹脂層３を
使用した場合、光をあてるとホログラムが透し絵の様に
見ることができる。FIG. 3 shows a cross-sectional view of a molded product obtained by the present invention. When a hologram 8 is embossed on the surface and a highly transparent molding plastic sheet 2 and a resin layer 3 are used, light is not emitted. When applied, the hologram can be seen like a see-through picture.
また、成形用プラスチックシート２あるいは樹脂層３を
マンセル区分４以下に着色することにより、更にクリヤ
ーなホログラムとして見ることができる。Further, by coloring the molding plastic sheet 2 or the resin layer 3 in the Munsell section 4 or less, it can be seen as a clearer hologram.
熱可塑製樹脂の表面に形成されたレリーフ型ホログラム
は、それだけでもホログラム効果を発現するが、前記効
果を視認することを一層容易とするために、上記のよう
に暗色の樹脂を用いる以外に、ホログラムの表面に金属
反射層を設ける場合もある。The relief type hologram formed on the surface of the thermoplastic resin expresses the hologram effect by itself, but in order to make it easier to visually recognize the effect, in addition to using the dark resin as described above, A metal reflective layer may be provided on the surface of the hologram.
第４図は、得られた成形品のレリーフ型ホログラム８表
面へ金属反射層９を設けた場合についての説明図であ
る。FIG. 4 is an explanatory view of the case where the metal reflection layer 9 is provided on the surface of the relief hologram 8 of the obtained molded product.
尚、金属反射層９としてはアルミニウム、銀、錫などの
金属を真空蒸着、スパッタリング、イオンプレーティン
グなどの方法にて100〜10000Å程度の薄膜を全面あるい
は部分的に設けたものである。As the metal reflection layer 9, a metal such as aluminum, silver or tin is provided with a thin film of about 100 to 10,000 Å on the whole surface or a part thereof by a method such as vacuum deposition, sputtering and ion plating.
以下、本発明をさらに解り易くするために実施例をもっ
て説明する。Hereinafter, the present invention will be described with reference to examples in order to make it easier to understand.
〔比較例１〕 厚み300μｍの硬質塩化ビニルシート上に下記（ａ）に
示す各種の塩化ビニル−酢酸ビニル共重合樹脂を用い
た、着色されていない透明なワニスをロールコート法に
て塗布し乾燥させて約3.0μｍの樹脂層を設け成形シー
トとした。次に該成形シートの樹脂層が成形型に面する
よう配置し、第１図に示すクランプ４で固定し、赤外線
ヒーターにて表面温度を140℃に加熱した後、ニッケル
電鋳にて作成した1500本/mmの回析格子からなる立体画
像を有するホログラムスタンパ７を設けたアルミニウム
製の成形型５を用いた圧空成形装置により、成形型５か
ら排気すると同時に密閉箱６から3kg/cm2の圧空を吹き
込み成形シートを成形型５に密着させた後、冷却して第
３図で示す様なホログラム８を有した成形品を得た。[Comparative Example 1] An uncolored transparent varnish containing various vinyl chloride-vinyl acetate copolymer resins shown in (a) below was applied onto a hard vinyl chloride sheet having a thickness of 300 µm by a roll coating method and dried. Then, a resin layer having a thickness of about 3.0 μm was provided to obtain a molded sheet. Next, the resin layer of the molded sheet was placed so as to face the molding die, fixed by the clamp 4 shown in FIG. 1, heated to a surface temperature of 140 ° C. by an infrared heater, and then formed by nickel electroforming. By a pneumatic molding device using a molding die 5 made of aluminum provided with a hologram stamper 7 having a three-dimensional image composed of 1500 diffraction gratings / mm, air is exhausted from the molding die 5 and at the same time 3 kg / cm 2 from the closed box 6. After pressured air was blown into the mold 5 to bring the molded sheet into close contact with the mold 5, it was cooled to obtain a molded product having a hologram 8 as shown in FIG.
得られた成形品のホログラムを、後述する成形率の測定
法にて評価した結果、樹脂層３の軟化点が80℃以下の組
成のワニスを用いた場合において成形率が良好（70％以
上）であった。The hologram of the obtained molded product was evaluated by the method for measuring the molding ratio described below, and as a result, the molding ratio was good (70% or more) when the resin layer 3 had a varnish having a softening point of 80 ° C or less. Met.
また、成形品に白色光を照射してホログラムを観察した
ところ、虹色に光るホログラムを確認することはできた
が、成形品が透明であるため、環境の明るさにかき消さ
れてしまい、ホログラム効果を容易に視認することはで
きなかった。Also, when observing the hologram by irradiating the molded product with white light, it was possible to confirm the hologram that shines in rainbow colors, but since the molded product was transparent, it was drowned out by the brightness of the environment, and the hologram The effect was not easily visible.
（ａ）ワニス 塩化ビニル樹脂＊ 30重量％ トルエン 30 〃 メチルエチルケトン 30 〃 酢酸ブチル 10 〃 ＊塩化ビニル樹脂成分中の酢酸ビニル成分及び塩化ビニ
ル樹脂の平均分子量，軟化点 〔実施例〕 黒色着色されたマンセル区分４以下の厚み300μｍのハ
イインパクトポリスチレンシート上に下記ワニス（ｂ）
に示すアクリル樹脂ワニスをロールコート法にて塗布し
乾燥させてなる約5.0μｍの75℃の軟化点を有した樹脂
層を設け成形シートとした。(A) Varnish Vinyl chloride resin * 30% by weight Toluene 30〃 Methyl ethyl ketone 30〃 Butyl acetate 10〃 * Average molecular weight and softening point of vinyl acetate component and vinyl chloride resin in vinyl chloride resin component [Example] The following varnish (b) was placed on a high-impact polystyrene sheet with a thickness of 300 μm and having a Munsell section 4 colored black or less.
The acrylic resin varnish shown in (1) was applied by a roll coating method and dried to provide a resin layer having a softening point of 75 ° C. of about 5.0 μm to obtain a molded sheet.
以下比較例１と同様に圧空成形し成形品を得た。Thereafter, pressure molding was performed in the same manner as in Comparative Example 1 to obtain a molded product.
ワニス（ｂ） アクリル樹脂 （分子量30000） 20重量％ 塩化ビニル−酢酸ビニル（分子量300〜400） 15 〃 共重合体 メチルエチルケトン 35 〃 トルエン 30 〃 得られた成形品に白色光を照射したところ、黒色の成形
品に鮮やかに浮かび上がるホログラムが、環境の明るさ
の影響を受けずに容易に視覚できた。Varnish (b) Acrylic resin (Molecular weight 30000) 20% by weight Vinyl chloride-vinyl acetate (Molecular weight 300-400) 15〃 Copolymer Methyl ethyl ketone 35〃 Toluene 30〃 When the obtained molded product was irradiated with white light, it became black. The hologram that clearly appeared on the molded product was easily visible without being affected by the brightness of the environment.
また、比較例１と同じく成形率を測定したところ、良好
な成形率（70％）であった。When the molding ratio was measured as in Comparative Example 1, the molding ratio was good (70%).
〔比較例２〕 比較例１で得られた成形品のホログラムの表面に、金属
反射層として厚さ400Åの酸化チタンをスパッタリング
法にて設け、第４図に示す構成とした。[Comparative Example 2] Titanium oxide having a thickness of 400 Å was provided as a metal reflection layer on the surface of the hologram of the molded product obtained in Comparative Example 1 by the sputtering method to obtain the structure shown in FIG.
第４図の構成の成形品に白色光を照射してホログラムを
観察したところ、金属反射層を設けたことによって、ホ
ログラム効果を容易に視認することが可能となった。When a hologram was observed by irradiating the molded product having the structure of FIG. 4 with white light, the hologram effect could be easily visually recognized by providing the metal reflection layer.
〈成形率の測定法〉 従来、ホログラムのレリーフ再現性を明確に評価する手
法はなく、主に目視での評価によっていたが、本発明で
は簡易的なレリーフ再現性（成形性）の評価法として、
ホログラムスタンパの凹凸を忠実に成形品に形成するこ
とができれば、前記スタンパのホログラム像と成形品の
ホログラム像との明るさが等しくなるものと仮定し、実
施例および比較例１で得られたホログラム面に、厚さ40
0Åのアルミニウムを蒸着形成して、下式にて成形率を
算出し、レリーフ再現性の評価基準として代替した。<Measurement Method of Molding Ratio> Conventionally, there is no method for clearly evaluating the relief reproducibility of a hologram, and it was mainly by visual evaluation. However, in the present invention, as a simple evaluation method of relief reproducibility (formability). ,
If the irregularities of the hologram stamper can be faithfully formed on the molded product, it is assumed that the hologram image of the stamper and the hologram image of the molded product have the same brightness, and the holograms obtained in the example and the comparative example 1 are obtained. Surface, thickness 40
A 0Å aluminum film was formed by vapor deposition, and the molding ratio was calculated by the following formula, which was used as an evaluation criterion for relief reproducibility.
成形率（％）＝（成形品のホログラムの明るさ） ÷（スタンパの明るさ） ホログラムの明るさはスタンパ及びそれぞれ得られた成
形品のホログラムにHe−Neレーザーを照射し、反射され
た光をレンズで収束させ、パワーメータにて電圧を測定
し明るさとした。Molding ratio (%) = (brightness of hologram of molded product) ÷ (brightness of stamper) The brightness of hologram is the light reflected by the He-Ne laser on the stamper and the hologram of each molded product obtained. Was converged with a lens and the voltage was measured with a power meter to obtain the brightness.
成形率の値は当然100％に近づくほど、成形性が良いと
判断出来る事になるが、ホログラムの明るさとして目視
で評価した場合約50％でも画像は見る事が出来、判断基
準としては、約60％以上であればおよそ満足出来る成形
性であると判断した。As the molding rate value naturally approaches 100%, it can be judged that the moldability is good, but when visually evaluated as the brightness of the hologram, the image can be seen even at about 50%, and the judgment criteria are: It was judged that the moldability was approximately satisfactory if it was about 60% or more.
実施例および比較例１でも、軟化点が80℃以下の樹脂層
については、成形率が70％以上と高く、レリーフ再現性
が良好であった。In Examples and Comparative Example 1 as well, the resin layer having a softening point of 80 ° C. or lower had a high molding rate of 70% or more, and the relief reproducibility was good.
しかし、形成されたホログラムの視覚効果は、比較例１
では低く、比較例２に示すように金属反射層を設けるこ
とが必要になる。However, the visual effect of the formed hologram was that Comparative Example 1
Is low, and it is necessary to provide a metal reflective layer as shown in Comparative Example 2.
本発明の実施例によれば、金属反射層を形成しなくても
ホログラム効果を容易に視認することが可能である。According to the embodiment of the present invention, it is possible to easily visually recognize the hologram effect without forming the metal reflection layer.
本発明では、成形性の優れた樹脂層を配した成形シート
をレリーフ型ホログラムを設けた成形型を用いて真空成
形、あるいは、圧空成形することで、成形と同時に成形
物外面に超微細な凹凸からなるホログラムを有した成形
品を得ることが出来る為、製造工程が少なく、生産性に
優れた製法である。In the present invention, a molded sheet on which a resin layer having excellent moldability is arranged is vacuum-molded or pressure-molded by using a mold provided with a relief-type hologram, so that ultrafine irregularities are formed on the outer surface of the molded product simultaneously with molding. Since it is possible to obtain a molded product having a hologram consisting of, it is a manufacturing method with few manufacturing steps and excellent productivity.
特に、本発明では、マンセル区分４以下の不透明暗色樹
脂シートを用いたため、金属反射層を付与しなくてもホ
ログラム像を容易に視認できると共に、軟化点が80℃以
下の樹脂を採用することによって、微細なホログラムで
も成形率が高く、レリーフ再現性が良好となる。In particular, in the present invention, since the opaque dark resin sheet of Munsell section 4 or less is used, the hologram image can be easily visually recognized without providing the metal reflection layer, and the resin having the softening point of 80 ° C. or less is used. Even with a fine hologram, the molding rate is high and the relief reproducibility is good.
又本発明によって得られるホログラム付き成形品は、従
来にない高級感があり、意匠性の高い成形品となる為、
ギフト、ノベルティ、パッケージ、玩具などへの利用が
可能であり、産業上有効なものであるといえる。Further, since the molded product with the hologram obtained by the present invention has a feeling of high quality that has never been obtained and is a molded product with high designability,
It can be used for gifts, novelties, packages, toys, etc., and can be said to be industrially effective.
第１図は本発明による成形シートを示す断面図であり、
第２図は圧空成形による製法の断面図である。また第３
図は本発明によって得られたホログラムを有した成形品
の断面図を示し、第４図は更にホログラム表面に金属反
射層を設けた成形品の断面説明図をそれぞれ示す。 １……成形シート ２……成形用プラスチックシート ３……樹脂層 ４……クランプ ５……成形型 ６……密閉箱 ７……ホログラムスタンパ ８……ホログラム ９……金属反射層FIG. 1 is a sectional view showing a molded sheet according to the present invention,
FIG. 2 is a sectional view of a manufacturing method by pressure forming. Also the third
The figure shows a cross-sectional view of a molded product having a hologram obtained by the present invention, and FIG. 4 shows a cross-sectional explanatory view of a molded product further provided with a metal reflection layer on the hologram surface. 1 …… Molding sheet 2 …… Molding plastic sheet 3 …… Resin layer 4 …… Clamp 5 …… Molding mold 6 …… Closed box 7 …… Hologram stamper 8 …… Hologram 9 …… Metal reflective layer
Claims (1)
るプラスチックシートの片面に、軟化点が80℃以下の樹
脂層を形成し、成形用積層シートとした後、前記積層シ
ートを加熱軟化させ、 空気圧を使用した圧空成形，または真空成形により、前
記積層シートを所望形状に成形するのと同時に、 成形型の成形面に配置したレリーフホログラム用スタン
パによって、前記積層シートの前記樹脂層側を加圧する
ことを特徴とする表面にホログラムを有する成形品の製
造方法。1. A plastic sheet having a softening point of 80 ° C. or lower is formed on one surface of a plastic sheet which is an opaque dark resin having a Munsell division of 4 or less to form a laminated sheet for molding, and the laminated sheet is softened by heating. The laminated sheet is formed into a desired shape by pressure forming using air pressure or vacuum forming, and at the same time, the resin layer side of the laminated sheet is pressed by a relief hologram stamper arranged on the forming surface of the forming die. A method for producing a molded article having a hologram on the surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018910A JPH07121550B2 (en) | 1987-01-29 | 1987-01-29 | Method for manufacturing molded article having hologram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018910A JPH07121550B2 (en) | 1987-01-29 | 1987-01-29 | Method for manufacturing molded article having hologram |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63185621A JPS63185621A (en) | 1988-08-01 |
| JPH07121550B2 true JPH07121550B2 (en) | 1995-12-25 |
Family
ID=11984759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62018910A Expired - Fee Related JPH07121550B2 (en) | 1987-01-29 | 1987-01-29 | Method for manufacturing molded article having hologram |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07121550B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101452140B1 (en) * | 2013-11-21 | 2014-10-17 | 강종국 | Press mold using hologram for the teeth of a comb |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643257B1 (en) | 2005-08-18 | 2006-11-10 | 박봉래 | Frame structure of parasol |
| DE102013206043A1 (en) * | 2013-04-05 | 2014-10-09 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component with hologram |
| JP2020026299A (en) * | 2018-08-13 | 2020-02-20 | 大日本印刷株式会社 | Composite container, manufacturing method for composite container, and blow molding die |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619076A (en) * | 1979-07-26 | 1981-02-23 | Nec Corp | Production of duplicated hologram |
| JPS5959311U (en) * | 1982-10-12 | 1984-04-18 | 小林 美智子 | Vacuum forming mold |
-
1987
- 1987-01-29 JP JP62018910A patent/JPH07121550B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101452140B1 (en) * | 2013-11-21 | 2014-10-17 | 강종국 | Press mold using hologram for the teeth of a comb |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63185621A (en) | 1988-08-01 |
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