JP3099115B2 - Transfer sheet and transfer method using the same - Google Patents
Transfer sheet and transfer method using the sameInfo
- Publication number
- JP3099115B2 JP3099115B2 JP09215463A JP21546397A JP3099115B2 JP 3099115 B2 JP3099115 B2 JP 3099115B2 JP 09215463 A JP09215463 A JP 09215463A JP 21546397 A JP21546397 A JP 21546397A JP 3099115 B2 JP3099115 B2 JP 3099115B2
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- layer
- transfer sheet
- resin
- support
- 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
Landscapes
- Decoration By Transfer Pictures (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は凹凸表面への転写に
も適する転写シート及びそれを用いた転写方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer sheet suitable for transfer to an uneven surface and a transfer method using the same.
【0002】[0002]
【従来の技術】従来、樹脂の射出成形品や木質基材等の
特に凹凸表面のある被転写体に対して絵柄模様を転写で
施すには、転写シートの支持体には成形性のある樹脂フ
ィルムとして塩化ビニル樹脂フィルムが良く使われてき
た。このような転写フィルムは、例えば、特公平6−
69759号公報、特公平7−29518号公報、
特公平7−100398号公報などに開示されている。
では、支持体上に剥離性のあるセルロース系インク等
による絵柄層を直接設けた構成とするもであり、また、
では支持体上に直接設ける絵柄層を、では支持体上
に直接設ける剥離層を、ポリビニルブチラール、セルロ
ース・アセテート・プロピオネート樹脂、または塩素化
ポリプロピレン樹脂のいずれか1種から構成するもので
ある。2. Description of the Related Art Conventionally, in order to transfer a pattern to a transfer target having a particularly uneven surface, such as a resin injection-molded article or a wood substrate, a transfer sheet support is formed by a resin having moldability. Vinyl chloride resin films have often been used as films. Such a transfer film is disclosed in, for example,
No. 69759, Japanese Patent Publication No. 7-29518,
It is disclosed in Japanese Patent Publication No. 7-100398.
In the configuration, a pattern layer made of a releasable cellulose-based ink or the like is directly provided on the support, and
In the above, the picture layer provided directly on the support and the release layer provided directly on the support are made of any one of polyvinyl butyral, cellulose acetate propionate resin and chlorinated polypropylene resin.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記
では、支持体上に絵柄層を直接に設けるべく印刷を行っ
た時に、溶剤が支持体の塩化ビニル樹脂フィルムをアタ
ックし、剥離強度が不安定となるといった問題がある。
また、上記においては、支持体の塩化ビニル樹脂フィ
ルム中に含まれる可塑剤がブリードアウトしてきて、や
はり剥離強度が不安定になるといった問題がある。ま
た、上記においては、剥離層に使用する樹脂が、ポリ
ビニルブチラール、セルロース・アセテート・プロピオ
ネート樹脂、塩素化ポリプロピレン樹脂という、特定の
樹脂に限定されてしまうという問題がある。以上の様に
凹凸表面の装飾において、塩化ビニル樹脂フィルムは成
形性は優れるが、転写シートの支持体としては、使い易
く満足すべき性能を持っていなかった。そこで、例えば
特公平7−110550号公報では、支持体として、
塩化ビニル樹脂以外にもポリスチレン系樹脂、アクリロ
ニトリル系樹脂、ABS樹脂等の、他のプラスチックフ
ィルムを用いた転写シートが開示されている。しかし、
においては、プラスチックフィルムの他層との密着性
改善の為に、支持体上にアンカー層を設ける事が必要
で、アンカー層上に剥離層、絵柄層等を設けた構成とな
らざろう得ない。従って、アンカー層や剥離層の為に、
転写シートが成形転写される時に、熱成形の適性温度範
囲が狭くなったりする。そこで、本発明者は塩化ビニル
樹脂フィルムの支持体を使用ぜす且つアンカー層等の付
随的層の不要な転写シートとして、自ら適度な剥離性が
有り且つ成形性の有る支持体フィルムとして、ポリエチ
レンフィルムやポリプロピレンフィルムを用いた転写シ
ートを試験研究してきた。また、これらポリエチレンや
ポリプロピレンのフィルムからなる転写シートは、地球
環境対策として塩酸ガスを発生させるという塩化ビニル
樹脂フィルムに対する脱塩ビ対策にもなるものである。
しかしながら、これらフィルムを用いた転写シートで
は、フィルムの結晶性が高く、融点で急に軟化する為、
成形条件の範囲が狭く、又、成形時に熱で伸ばされると
ネッキングにより部分的に白化し、白化した部分の伸び
が他所よりも大きくなるという、伸びの均一性が不安定
という問題があった。この不均一な伸びは、絵柄の歪み
の原因となる。However, in the above, when printing was performed to directly provide a picture layer on the support, the solvent attacked the vinyl chloride resin film of the support and the peel strength was unstable. Problem.
In the above, the vinyl chloride resin film of the support is used.
There is a problem in that the plasticizer contained in the bleed bleeds out and the peel strength becomes unstable. Further, in the above, there is a problem that the resin used for the release layer is limited to a specific resin such as polyvinyl butyral, cellulose acetate propionate resin, and chlorinated polypropylene resin. As described above, in the decoration of the uneven surface, the vinyl chloride resin film was excellent in moldability, but was not easy to use and had satisfactory performance as a transfer sheet support. Therefore, for example, in Japanese Patent Publication No. 7-110550,
A transfer sheet using other plastic films, such as a polystyrene resin, an acrylonitrile resin, and an ABS resin, other than the vinyl chloride resin, is disclosed. But,
In, in order to improve the adhesion to other layers of the plastic film, it is necessary to provide an anchor layer on the support, it is not possible to become a configuration provided with a release layer, a pattern layer, etc. on the anchor layer . Therefore, for the anchor layer and release layer,
When the transfer sheet is formed and transferred, the suitable temperature range for thermoforming is narrowed. Therefore, the present inventor uses a polyvinyl chloride resin film support and uses a polyethylene film as a support film having an appropriate peelability and moldability by itself as a transfer sheet that does not require an additional layer such as an anchor layer. We have been studying transfer sheets using films and polypropylene films. Further, the transfer sheet made of such a polyethylene or polypropylene film is also a measure against the vinyl chloride resin film that generates hydrochloric acid gas as a measure against the global environment.
However, in the transfer sheet using these films, the crystallinity of the film is high and the film rapidly softens at the melting point.
There is a problem that the range of molding conditions is narrow, and when stretched by heat during molding, whitening occurs partially due to necking, and the elongation of the whitened portion becomes larger than that of other portions, and the uniformity of elongation is unstable. This uneven elongation causes distortion of the picture.
【0004】[0004]
【課題を解決するための手段】そこで、上記課題を解決
する為に本発明の転写シートにおいては、オレフィン系
熱可塑性エラストマーフィルムを支持体として、該支持
体上に少なくとも絵柄層を転写層として有する転写シー
トであって、該オレフィン系熱可塑性エラストマーが、
アイソタクチックポリプロピレンとアタクチックポリプ
ロピレンとからなり、且つアイソタクチックポリプロピ
レンの重量比が50重量%を超え95重量%未満で、ア
タクチックポリプロピレンの重量比が5重量%以上50
重量%以下である構成とした。その結果、支持体として
の適度な密着性による安定的な剥離性と共に、熱成形の
適性温度範囲を広げ、また、転写成形時のネッキング発
生を防ぐことができた。Therefore, in order to solve the above problems, the transfer sheet of the present invention has an olefin-based thermoplastic elastomer film as a support and at least a picture layer as a transfer layer on the support. A transfer sheet, wherein the olefin-based thermoplastic elastomer is
The isotactic polypropylene is composed of isotactic polypropylene and atactic polypropylene, and the weight ratio of the isotactic polypropylene is more than 50% by weight and less than 95% by weight;
% By weight or less. As a result, it was possible to widen the suitable temperature range of thermoforming and prevent the occurrence of necking at the time of transfer molding, in addition to the stable releasability due to appropriate adhesion as a support.
【0005】また、本発明の転写方法は上記転写シート
を用いることで、転写層を被転写体に転写する転写方法
である。例えば、上記転写シートを、その転写層側を被
転写体側に向けて配置し、被転写体側から真空吸引を行
い、支持体側と被転写体側との気圧差によって加圧し、
転写層を被転写体に転写する。或いは、上記転写シート
を、その転写層側を被転写体側に対向させて、支持体側
から固体粒子を衝突させ、その衝突圧によって転写層を
被転写体に転写する。或いは、雄型と雌型とからなる射
出成形用の両型の間に上記転写シートを、その転写層側
が射出樹脂側を向く様にして挿入し、しかる後、両型を
型締めし、両型で形成されるキャビティに流動状態の樹
脂を射出充填し、該射出樹脂を固体化させて被転写体と
するとともに前記転写層を該射出樹脂と接着させた後、
両型を型開きして成形品を取り出し、成形品取出しと同
時又は成形品取出し後に転写シートの支持体を剥離除去
することで、転写層を被転写体である成形品に転写す
る。或いは、上記転写シートを、その転写層側を被転写
体側に向けて、支持体側から弾性体ローラで加圧し、転
写層を被転写体に転写する。これらの転写方法によっ
て、被転写体が凹凸表面であっても、転写成形時に支持
体のネッキング発生無く、被転写体に転写できる。転写
方法は、被転写体形状、材料、用途等によって適宜使い
分ける。Further, the transfer method of the present invention is a transfer method in which a transfer layer is transferred to a transfer object by using the above transfer sheet. For example, the transfer sheet, the transfer layer side is arranged facing the transfer object side, vacuum suction is performed from the transfer object side, pressurized by the pressure difference between the support side and the transfer object side,
The transfer layer is transferred to an object to be transferred. Alternatively, the transfer sheet is made to impinge solid particles from the support side with the transfer layer side facing the transfer object side, and the transfer layer is transferred to the transfer object by the collision pressure. Alternatively, the transfer sheet is inserted between the two molds for injection molding consisting of a male mold and a female mold so that the transfer layer side faces the injection resin side. After injection-filling a resin in a fluid state into a cavity formed by a mold, and solidifying the injection resin to form a transferred object and bonding the transfer layer to the injection resin,
Both molds are opened to take out the molded product, and the transfer layer is transferred to the molded product, which is the object to be transferred, by removing and removing the support of the transfer sheet at the same time as or after the molded product is taken out. Alternatively, the transfer layer is transferred to the transfer object by pressing the transfer sheet with an elastic roller from the support side with the transfer layer side facing the transfer object side. According to these transfer methods, even when the object to be transferred has an uneven surface, the image can be transferred to the object to be transferred without necking of the support during transfer molding. The transfer method is appropriately used depending on the shape of the transfer object, the material, the use, and the like.
【0006】[0006]
【発明の実施の形態】以下、本発明の転写シート及びそ
れを用いた転写方法の実施の形態を詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the transfer sheet of the present invention and a transfer method using the same will be described in detail.
【0007】〔転写シート〕図1は転写シートの形態例
を示す断面図である。図1(A)は接着剤層無しの一形
態、図1(B)は接着剤層有りの一形態である。本発明
の転写シートSは、特定組成のポリプロピレン系のオレ
フィン系熱可塑性エラストマーフィルムからなる支持体
1と、転写層2とから構成される。転写層2は、図1
(A)では支持体1側から順に剥離層3、絵柄層4から
なり、図1(B)では支持体1側から順に剥離層3、絵
柄層4及び接着剤層5からなる。接着剤層や剥離層は適
宜省略される。[Transfer Sheet] FIG. 1 is a sectional view showing an embodiment of the transfer sheet. 1A shows an embodiment without an adhesive layer, and FIG. 1B shows an embodiment with an adhesive layer. The transfer sheet S of the present invention includes a support 1 made of a polypropylene-based olefin-based thermoplastic elastomer film having a specific composition, and a transfer layer 2. The transfer layer 2 is shown in FIG.
1 (A) includes a release layer 3 and a pattern layer 4 in order from the support 1 side, and FIG. 1 (B) includes a release layer 3, a pattern layer 4 and an adhesive layer 5 in order from the support 1 side. The adhesive layer and the release layer are appropriately omitted.
【0008】(支持体)支持体1には、特定の組成から
なるポリプロピレン系のオレフィン系熱可塑性エラスト
マーを用いる。ポリプロピレン系熱可塑性エラストマー
としては、従来、特公平6−23278号公報に開示さ
れているものがある。すなわち、(A) ソフトセグメント
として、数平均分子量Mnが25,000以上、且つ、
重量平均分子量Mwと数平均分子量Mnとの比Mw/M
n≦7の沸騰ヘプタン可溶ポリプロピレン10〜90重
量%と、(B) ハードセグメントとして、メルトインデッ
クスが0.1〜4g/10分の沸騰ヘプタン不溶性ポリ
プロピレン90〜10重量%、との混合物からなる軟質
ポリプロピレンである。(Support) For the support 1, a polypropylene-based olefin-based thermoplastic elastomer having a specific composition is used. As a polypropylene-based thermoplastic elastomer, there has been one disclosed in Japanese Patent Publication No. Hei 6-23278. That is, (A) as a soft segment, the number average molecular weight Mn is 25,000 or more, and
Ratio Mw / M between weight average molecular weight Mw and number average molecular weight Mn
A mixture of 10 to 90% by weight of a boiling heptane-soluble polypropylene having n ≦ 7 and (B) 90 to 10% by weight of a boiling heptane-insoluble polypropylene having a melt index of 0.1 to 4 g / 10 minutes as a hard segment. It is a soft polypropylene.
【0009】本発明では、例えば上記の様なオレフィン
系熱可塑性エラストマーの中でも、いわゆる「ネッキン
グ」を生じ難く、熱圧により三次元形状などの凹凸表面
の被転写体に転写する際に適性が良好なものとして、ア
イソタクチックポリプロピレンとアタクチックポリプロ
ピレンとからなり、且つアイソタクチックポリプロピレ
ンの重量比が51〜95重量%、アタクチックポリプロ
ピレンの重量比が5〜49重量%であるものを用いる。
ポリプロピレン系のオレフィン系熱可塑性エラストマー
自体は、包装容器等の分野では従来公知で、容器分野で
用いられる場合は、強度を重視する為に、ソフトセグメ
ントとなるアタクチックポリプロピレン(上記(A) 成
分)の重量比が5重量%未満のものが専ら使用されてい
た。しかしながら、本発明で目的とする様な、特に三次
元形状の凹凸表面を有する被転写体に転写する為の転写
シートの支持体という新規な用途にこれを適用しようと
すると、前記のネッキングを生じて良好な転写が不可能
であった。そこで、本発明者は各種検討の結果、従来の
組成の設計とは逆に、ポリプロピレン系のオレフィン系
熱可塑性エラストマーに於いて、アタクチックポリプロ
ピレンの重量比が5重量%以上とすることによって、三
次元形状等の凹凸表面の被転写体に転写する際のネッキ
ングによる不均一な転写シートの変形、及びのその結果
としての皺、絵柄の歪み等の欠点を解消できる事を見い
だした。そこで、アタクチックポリプロピレンの重量比
を5重量%以上、特に20重量%以上の場合が良好であ
る。一方、アタクチックポリプロピレンの重量比が増加
し過ぎると、支持体自体が変形し易くなり、支持体を印
刷機に通し絵柄等を印刷する時に、支持体が変形し、絵
柄が歪んだり、多色刷りの場合に見当が合わなくなる等
の印刷不良が発生し易くなる。また、転写時に転写シー
トが成形される際にも、転写シートが破れ易くなる為、
好ましく無い。そこで、アタクチックポリプロピレンの
重量比の上限としては、輪転グラビア印刷等の通常の輪
転印刷機を用いて転写層を印刷し、且つ転写方法として
本発明の列記の方法を採用する場合は、アイソタクチッ
クポリプロピレンが主体(重量比で50重量%を超え
る)となる様にして、アタクチックポリプロピレンの方
は重量比で50重量%以下、より好ましくは40重量%
以下とすると良い。In the present invention, for example, among the above-mentioned olefin-based thermoplastic elastomers, so-called "necking" is unlikely to occur, and has good suitability for transferring to an object to be transferred having an uneven surface such as a three-dimensional shape by hot pressure. What is used is a material composed of isotactic polypropylene and atactic polypropylene, wherein the weight ratio of isotactic polypropylene is 51 to 95% by weight and the weight ratio of atactic polypropylene is 5 to 49% by weight.
A polypropylene-based olefin-based thermoplastic elastomer itself is conventionally known in the field of packaging containers and the like, and when used in the container field, atactic polypropylene (the component (A)) serving as a soft segment in order to emphasize strength. Of which the weight ratio is less than 5% by weight was exclusively used. However, when the present invention is applied to a novel use such as a support for a transfer sheet for transferring to a transfer target having a three-dimensionally uneven surface as intended in the present invention, the necking described above occurs. And good transfer was not possible. Therefore, the present inventor has conducted various studies and found that, contrary to the design of the conventional composition, the weight ratio of the atactic polypropylene is set to 5% by weight or more in the polypropylene-based olefin-based thermoplastic elastomer. It has been found that defects such as non-uniform transfer sheet deformation due to necking when transferring to an object to be transferred having an uneven surface such as an original shape and wrinkles and pattern distortion as a result can be solved. Therefore, it is preferable that the weight ratio of the atactic polypropylene is 5% by weight or more, particularly 20% by weight or more. On the other hand, if the weight ratio of the atactic polypropylene increases too much, the support itself is easily deformed, and when the support is passed through a printing machine to print a pattern or the like, the support is deformed, the pattern is distorted, or multicolor printing is performed. In this case, printing defects such as misregistration are likely to occur. Also, when the transfer sheet is molded during transfer, the transfer sheet is easily torn,
Not preferred. Therefore, as the upper limit of the weight ratio of atactic polypropylene, when the transfer layer is printed using a normal rotary printing machine such as rotary gravure printing, and when the method described in the list of the present invention is used as the transfer method, isotactic polypropylene is used. The atactic polypropylene is 50% by weight or less, more preferably 40% by weight, so that the tic polypropylene is the main component (more than 50% by weight).
It is better to do the following.
【0010】上記のようなオレフィン系熱可塑性エラス
トマーは、従来公知のカレンダー法、インフレーション
法、Tダイ押し出し法等の成膜方法によって、フィルム
とすることができる。なお、使用するフィルムの厚みは
成形方法等によるが、20〜500μm程度である。ま
た、フィルムは、延伸フィルム、未延伸フィルムのいず
れでも良いが、三次元形状等の凹凸表面に対して追従し
て成形される成形性を考慮する場合は、未延伸フィルム
を用いるのが好ましい。また、支持体と転写層との剥離
強度を適度なものに調整する為に、必要に応じて下記す
る剥離層を設けたり、あるいは支持体のコロナ処理、プ
ラズマ処理等を施してもよい。The above-mentioned olefin-based thermoplastic elastomer can be formed into a film by a conventionally known film forming method such as a calendering method, an inflation method or a T-die extrusion method. The thickness of the film used depends on the molding method and the like, but is about 20 to 500 μm. Further, the film may be a stretched film or an unstretched film. However, in consideration of the moldability following the uneven surface such as a three-dimensional shape, it is preferable to use an unstretched film. In order to adjust the peel strength between the support and the transfer layer to an appropriate value, a release layer described below may be provided as necessary, or the support may be subjected to corona treatment, plasma treatment, or the like.
【0011】なお、上記のオレフィン系熱可塑性エラス
トマーとしては、従来使用されて来た半硬質(可塑剤含
有量がジオクチルフタレート換算で10〜30phr)
塩化ビニル樹脂と同等の成形性と機械的強度を有する事
が必要がある。その為には、25℃に於ける破断強度が
300〜400Kg/cm2、25℃での破断伸度が150〜
180%、70℃に於ける破断強度が200〜300Kg
/cm2、70℃での破断伸度が160〜200%のものを
選ぶと良い。なお、測定値はJIS−K−6734に基
づく値である。25℃での破断強度が、この値を超える
か、又は破断伸度がこの値未満であると、常温での成形
性が不足し、70℃では破断強度がこの値を超えるか、
又は破断伸度がこの値未満であると、加熱成形(通常7
0℃〜150℃程度)時の成形性が不足する。25℃で
の破断強度がこの値未満であると、常温での成形時に転
写シートの破断を生じ易く、25℃での破断伸度がこの
値を超えると、多色印刷時の見当精度が不良となる。7
0℃に於ける破断強度がこの値未満か、又は破断伸度が
この値を超えると、成形時の絵柄の歪みが著しくなる。The above-mentioned olefin-based thermoplastic elastomer is a semi-rigid (plasticizer content of 10 to 30 phr in terms of dioctyl phthalate) conventionally used.
It is necessary to have the same moldability and mechanical strength as vinyl chloride resin. For this purpose, the breaking strength at 25 ° C. is 300 to 400 kg / cm 2 , and the breaking elongation at 25 ° C. is 150 to 400 kg / cm 2 .
180%, breaking strength at 70 ° C is 200-300kg
It is preferable to select one having an elongation at break at 160 ° C./cm 2 and 70 ° C. The measured value is a value based on JIS-K-6734. If the breaking strength at 25 ° C. exceeds this value, or if the breaking elongation is less than this value, the formability at room temperature is insufficient, and at 70 ° C., the breaking strength exceeds this value,
Alternatively, if the elongation at break is less than this value, heat molding (usually 7
Moldability at about 0 ° C to 150 ° C) is insufficient. If the breaking strength at 25 ° C. is less than this value, the transfer sheet tends to break at the time of molding at normal temperature, and if the breaking elongation at 25 ° C. exceeds this value, the registration accuracy during multicolor printing is poor. Becomes 7
If the breaking strength at 0 ° C. is less than this value, or if the breaking elongation exceeds this value, distortion of the picture during molding becomes remarkable.
【0012】(転写層)転写層2は少なくとも絵柄層か
ら構成される。図1(A)では、絵柄層4の他に更に剥
離層3を有する転写層であった。また、図1(B)では
図1(A)の構成の転写層に対して、更に接着剤層5も
有する転写層であった。通常は、転写層2は剥離層3、
絵柄層4及び接着剤層5とから構成するが、本発明の転
写シートは、図示した例に限定されるものではない。例
えば、絵柄層4が被転写体との接着機能を有する場合等
では接着剤層5は省略できる。また、絵柄層4が支持体
1との適度の剥離性を有し、転写後の表面保護層的作用
を剥離層3により期待の必要がない場合には、剥離層3
は省略でき、さらに、用途及び仕様によりこれら両方の
条件が成立する場合には、転写層2は絵柄層4のみの構
成の形態もあり得る。(Transfer Layer) The transfer layer 2 comprises at least a picture layer. In FIG. 1A, the transfer layer has a release layer 3 in addition to the picture layer 4. Further, in FIG. 1B, the transfer layer has an adhesive layer 5 in addition to the transfer layer having the configuration of FIG. 1A. Usually, the transfer layer 2 is composed of the release layer 3,
Although the transfer sheet is composed of the picture layer 4 and the adhesive layer 5, the transfer sheet of the present invention is not limited to the illustrated example. For example, the adhesive layer 5 can be omitted when the picture layer 4 has a function of adhering to an object to be transferred. When the pattern layer 4 has a moderate releasability from the support 1 and the function of the surface protective layer after transfer is not expected by the release layer 3, the release layer 3
Can be omitted, and when both of these conditions are satisfied depending on the application and the specification, the transfer layer 2 may be configured with only the picture layer 4.
【0013】(剥離層)剥離層3は、転写層の一部とし
て、転写後は被転写体に転写移行し被転写体の表面を薬
品、紫外線、磨耗等から保護する保護層となると共に、
転写層の支持体に対する接着性を調整し、剥離性を適度
なものとする等の為に適宜設けるものである。剥離層の
樹脂としては、適度な剥離性を与えると共に、成形性を
考慮すれば更に伸び適性の優れた樹脂が好ましい。例え
ば、ポリビニルブチラール系樹脂、ニトロセルロース等
のセルロース系樹脂、塩素化ポリプロピレン樹脂、アク
リル系樹脂、塩化ビニル−酢酸ビニル共重合体、ポリア
ミド系樹脂、ウレタン系樹脂等が使用できる。また、本
発明の転写シートでは、その支持体としてポリプロピレ
ン系熱可塑性エラストマーを用いている為に、塩化ビニ
ル樹脂、ポリエチレン、ポリプロピレン等を用いた従来
の転写シートに比較して、使用できる剥離層の樹脂の制
限が少ない。すなわち、従来技術として前記した、ポリ
ビニルブチラール、セルロース・アセテート・プロピオ
ネート樹脂、塩素化ポリプロピレン樹脂などの耐溶剤性
に乏しく、表面保護層として耐薬品性に劣る樹脂を特に
使用する必要性がなく、耐溶剤性に優れたウレタン系樹
脂等を使用することができる。このように、転写後に被
転写体の表面層となる剥離層の樹脂に制限が少ないの
で、得られる転写品の表面物性、例えば、耐溶剤性、耐
擦傷性、耐摩耗性等の表面物性をより自由に設計できる
という優れた転写シートとなる。また、このように、優
れた表面物性を付与できることから、転写形成される剥
離層を塗装フィニッシュとしても使用できる。なお、剥
離層の厚みは0.5〜30μm、通常は2〜10μm程
度とする。なお、表面保護層は、転写層を転写後にスプ
レー塗装等によっても良い。(Release Layer) The release layer 3 is a part of the transfer layer, and after the transfer, is transferred to the transfer object, and serves as a protective layer for protecting the surface of the transfer object from chemicals, ultraviolet rays, abrasion, and the like.
It is provided as appropriate in order to adjust the adhesiveness of the transfer layer to the support and make the releasability appropriate. As the resin of the release layer, a resin having appropriate exfoliation properties and further excellent elongation suitability is preferable in consideration of moldability as well. For example, cellulosic resins such as polyvinyl butyral resins, nitrocellulose, chlorinated polypropylene resins, acrylic resins, vinyl chloride-vinyl acetate copolymers, polyamide resins, urethane resins, and the like can be used. Further, in the transfer sheet of the present invention, since the polypropylene-based thermoplastic elastomer is used as the support, compared with a conventional transfer sheet using a vinyl chloride resin, polyethylene, polypropylene, etc., a release layer that can be used. There are few restrictions on resin. That is, as described above as the prior art, polyvinyl butyral, cellulose acetate propionate resin, poor solvent resistance such as chlorinated polypropylene resin, there is no need to use a resin having poor chemical resistance as a surface protective layer, there is no need to use. A urethane-based resin or the like having excellent solvent properties can be used. As described above, since there is little restriction on the resin of the release layer which becomes the surface layer of the transferred body after the transfer, the surface physical properties of the obtained transfer product, for example, the surface physical properties such as solvent resistance, abrasion resistance, and abrasion resistance are reduced. It is an excellent transfer sheet that can be designed more freely. In addition, since excellent surface properties can be imparted, the release layer formed by transfer can be used as a paint finish. The thickness of the release layer is 0.5 to 30 μm, usually about 2 to 10 μm. The surface protective layer may be formed by spray coating or the like after transferring the transfer layer.
【0014】また、剥離層には、耐候性(耐光性)をよ
り向上させる為に、紫外線吸収剤、光安定剤のどちらか
一方、又は両方を添加することができ、その添加量は紫
外線吸収剤、光安定剤とも通常0.5〜10重量%程度
であるが、一般的には紫外線吸収剤と光安定剤とを併用
するのが好ましい。これより少ないと、耐候性向上効果
が充分に得られず、又これより多いと着色化し、多量に
入れても効果的に変化がなく好ましくない。紫外線吸収
剤としては、ベンゾトリアゾール系、ベンゾフェノン
系、サリチル酸系等の有機系の紫外線吸収剤の他、粒径
0.2μm以下の微粒子状の酸化亜鉛、酸化セリウム、
酸化チタン等の無機物を用いることができる。光安定剤
としては、ビス−(2,2,2,6,6−テトラメチル
−4−ピペリジル)セバケート等のヒンダードアミン系
ラジカル捕捉剤を用いることができる。また、剥離層に
は、耐磨耗性をより向上させる為に、減磨剤、滑剤のど
ちらか一方、又は両方を添加することが出来る。減磨剤
としては、シリカ、アルミナ等の粉末が用いられる。特
に耐磨耗性と透明性の点から、粒径1〜10μm程度の
球形アルミナ粉末が好ましい。滑剤としては、パラフィ
ン蝋、モンタン蝋等のワックス類が用いられる。In order to further improve the weather resistance (light resistance), one or both of an ultraviolet absorber and a light stabilizer can be added to the release layer. Both the agent and the light stabilizer are usually about 0.5 to 10% by weight, but it is generally preferable to use an ultraviolet absorber and a light stabilizer in combination. If the amount is less than this, the effect of improving the weather resistance cannot be sufficiently obtained, and if it is more than this, coloring occurs, and even if it is contained in a large amount, there is no effective change, which is not preferable. Examples of the ultraviolet absorber include benzotriazole-based, benzophenone-based, salicylic acid-based and other organic ultraviolet absorbers, and fine particles of zinc oxide and cerium oxide having a particle size of 0.2 μm or less.
An inorganic substance such as titanium oxide can be used. As a light stabilizer, a hindered amine radical scavenger such as bis- (2,2,2,6,6-tetramethyl-4-piperidyl) sebacate can be used. Further, in order to further improve abrasion resistance, one or both of a lubricating agent and a lubricant can be added to the release layer. Powders such as silica and alumina are used as the lubricating agent. In particular, spherical alumina powder having a particle size of about 1 to 10 μm is preferable from the viewpoint of abrasion resistance and transparency. As the lubricant, waxes such as paraffin wax and montan wax are used.
【0015】(絵柄層)次に絵柄層4としては、絵柄等
のパターンや全ベタ柄等を、公知のビヒクルに顔料等を
混合したインク、塗液を用いて印刷や塗工で形成したも
のである。印刷方法としてはグラビア印刷、オフセット
印刷、凸版印刷、フレキソ印刷、シルクスクリーン印刷
等のような従来公知の印刷方式を用いることができる。
全ベタ柄では、グラビアコート、グラビアリバースコー
ト等の従来公知の塗工方式を用いることができる。(Pattern Layer) Next, the pattern layer 4 is formed by printing or coating a pattern such as a pattern, a solid pattern, or the like, using a known vehicle mixed with an ink or a coating liquid containing a pigment or the like. It is. As a printing method, a conventionally known printing method such as gravure printing, offset printing, letterpress printing, flexographic printing, or silk screen printing can be used.
For the all solid pattern, a conventionally known coating method such as a gravure coat and a gravure reverse coat can be used.
【0016】絵柄層用の印刷インク又は塗液としては種
々のものを用いることができ、バインダー樹脂、着色
剤、溶剤、また、必要に応じて適宜、体質顔料、硬化
剤、各種添加剤等を添加した組成物を使用することがで
きる。なお、バインダー樹脂としては、例えば、アクリ
ル系樹脂、塩素化ポリエチレン、塩素化ポリプロピレ
ン、酢酸ビニル、塩化ビニル−酢酸ビニル共重合体、セ
ルロース系樹脂、熱可塑性ポリエステル、熱可塑性ポリ
ウレタン等の熱可塑性樹脂、熱硬化性ポリウレタン等の
常温又は熱硬化性樹脂、アクリル系等の電離放射線硬化
型樹脂などの通常のものが使用できる。また、転写シー
トの支持体がポリプロピレン系熱可塑性エラストマーか
らなるので、絵柄層を支持体上に直接設ける場合でも、
従来の塩化ビニル樹脂、ポリエチレン、ポリプロピレン
等のフィルムに比較して、広範囲なバインダー樹脂を使
用できるが、剥離層を設けた上に絵柄層を設ける場合に
は、バインダー樹脂はさらに広範囲に使用することがで
きる。なお、着色剤としては、チタン白、亜鉛華、弁
柄、朱、群青、コバルトブルー、チタン黄、黄鉛、カー
ボンブラック等の無機顔料、イソインドリノン、ハンザ
イエローA、キナクリドン、パーマネントレッド4R、
フタロシアニンブルー、インダスレンブルーRS、アニ
リンブラック等の有機顔料(或いは染料も含む)、アル
ミニウム、真鍮等の金属顔料、二酸化チタン被覆雲母、
塩基性炭酸鉛等の箔粉からなる真珠光沢(パール)顔料
等の従来公知の着色顔料が使用できる。また、体質顔料
としては、炭酸カルシウム、シリカ、アルナミ、硫酸バ
リウム等が使用される。また、剥離層において述べた、
紫外線吸収剤及び/又は光安定剤を混合使用することも
できる。なお、絵柄層の模様は、例えば、木目模様、石
目模様、布目模様、革絞模様、文字、幾何学図形、記
号、線画、各種抽象模様、全面ベタ柄、或いはこれらの
組合せ等と任意であ。Various printing inks or coating liquids for the picture layer can be used, and a binder resin, a colorant, a solvent, and, if necessary, an extender pigment, a curing agent, various additives, and the like. The added composition can be used. As the binder resin, for example, acrylic resin, chlorinated polyethylene, chlorinated polypropylene, vinyl acetate, vinyl chloride-vinyl acetate copolymer, cellulose resin, thermoplastic polyester, thermoplastic resin such as thermoplastic polyurethane, Usable at normal temperature or a thermosetting resin such as a thermosetting polyurethane, or an ionizing radiation-curable resin such as an acrylic resin can be used. Further, since the support of the transfer sheet is made of a polypropylene-based thermoplastic elastomer, even when the pattern layer is provided directly on the support,
A wider range of binder resins can be used compared to conventional films of vinyl chloride resin, polyethylene, polypropylene, etc., but when a picture layer is provided on a release layer, the binder resin should be used more widely. Can be. In addition, as a coloring agent, inorganic pigments such as titanium white, zinc white, red iron oxide, vermilion, ultramarine blue, cobalt blue, titanium yellow, graphite, carbon black, isoindolinone, Hansa Yellow A, quinacridone, permanent red 4R,
Organic pigments (including dyes) such as phthalocyanine blue, indathrene blue RS, and aniline black; metal pigments such as aluminum and brass; titanium dioxide-coated mica;
Conventionally known coloring pigments such as pearlescent (pearl) pigments made of foil powder such as basic lead carbonate can be used. As the extender pigment, calcium carbonate, silica, alnami, barium sulfate and the like are used. Also, as described in the release layer,
An ultraviolet absorber and / or a light stabilizer may be mixed and used. In addition, the pattern of the picture layer may be, for example, a wood pattern, a stone pattern, a cloth pattern, a leather pattern, a character, a geometric figure, a symbol, a line drawing, various abstract patterns, a solid pattern, or a combination thereof. Ah.
【0017】また、絵柄層4としては、金属薄膜を全面
又は部分的にパターン状に積層してもよく、この金属薄
膜は、アルミニウム、クロム、金、銀、銅等の金属を用
い、真空蒸着、スパッタリング等の方法で製膜する。な
お、パターン状に形成するには、金属薄膜不要部分に水
溶性インクにより除去層を所望のパターンで設けた上か
ら全面に金属薄膜を蒸着等で形成し、しかる後水洗して
上記除去層とともにその直上の金属薄膜を除去する等の
公知の手法による。絵柄層は、前記印刷等による層と、
この金属薄膜との組み合わせでもよい。As the picture layer 4, a metal thin film may be entirely or partially laminated in a pattern. The metal thin film is made of a metal such as aluminum, chromium, gold, silver, copper, etc. The film is formed by a method such as sputtering. To form a pattern, a removal layer is formed in a desired pattern with a water-soluble ink on a unnecessary portion of the metal thin film. A known method such as removal of the metal thin film immediately above the surface is used. The picture layer is a layer formed by printing or the like,
A combination with this metal thin film may be used.
【0018】〔接着剤:接着剤層〕接着剤層は、転写シ
ート側の接着剤層5としてや、被転写体B側に接着剤層
A(図4及び図5参照)として、どちらか片方又は両方
に設けることができる。もちろん、接着剤層5や接着剤
層Aは、例えば、絵柄層が被転写体との接着機能を有す
る場合、或いは被転写体自体が接着性がある場合(射出
成形同時絵付け転写法等で流動状態の樹脂の固化と同時
に転写層を転写し、流動状態の樹脂自身が接着機能を持
つ場合)等では転写シート側の接着剤層5は省略するこ
ともできる。転写シート側の接着剤層5は、被転写体側
に接着剤層Aを塗工や塗装などにより施しておく場合は
省略することもできる。転写シート及び被転写体の両方
に接着剤層を設ければ、転写層の密着性をより向上させ
る効果がある。また、転写シートには接着剤層を予め設
けておかずに、転写する際に直前に接着剤を転写シート
側及び/又は被転写体側に施してから転写する方法もあ
る。[Adhesive: Adhesive Layer] Either the adhesive layer is used as the adhesive layer 5 on the transfer sheet side or the adhesive layer A (see FIGS. 4 and 5) on the object B to be transferred. Or it can be provided in both. Of course, the adhesive layer 5 and the adhesive layer A may be formed, for example, when the picture layer has an adhesive function with the transfer object, or when the transfer object itself has an adhesive property (for example, by simultaneous injection molding and painting transfer method). In the case where the transfer layer is transferred simultaneously with the solidification of the fluidized resin and the fluidized resin itself has an adhesive function), the adhesive layer 5 on the transfer sheet side can be omitted. The adhesive layer 5 on the transfer sheet side can be omitted when the adhesive layer A is applied on the transfer object side by coating or painting. If an adhesive layer is provided on both the transfer sheet and the transfer object, there is an effect of further improving the adhesion of the transfer layer. There is also a method in which an adhesive layer is not provided on the transfer sheet in advance, and an adhesive is applied to the transfer sheet side and / or the transfer object side immediately before the transfer and then transferred.
【0019】接着剤としては、被転写体の材質等によっ
て適切なものを選択使用すれば良く、特に制限は無い。
接着力発現機構で言えば、従来公知の転写シートで一般
的ないわゆる熱融着型(感熱溶融型接着剤)接着剤でも
良いし、感圧型、あるいは溶剤活性型等と任意である。
なお、感圧型の場合には、通常、転写直前まで接着剤層
を保護しておくために剥離紙又は剥離フィルムが接着剤
層の表面に積層された構成の転写シートとなる。感熱溶
融型接着剤としては、例えばポリ酢酸ビニル樹脂、塩化
ビニル−酢酸ビニル共重合体、アクリル樹脂、熱可塑性
ポリエステル樹脂、熱可塑性ウレタン樹脂、ダイマー酸
とエチレンジアミンとの縮重合により得られるポリアミ
ド樹脂等による従来公知の接着剤を用いることができ
る。例えば、被転写体がABS樹脂の場合には、アクリ
ル樹脂は接着剤に用いる好ましい樹脂の一つである。ア
クリル樹脂は、各種アクリル酸エステル及びメタクリル
酸エステル、その他ビニルモノマーを共重合することに
よって、被転写体の材質に合わせた密着性を適宜調整し
易いからである。また、被転写体が塩化ビニル樹脂等の
塩化ビニル系の場合には、アクリル樹脂に加えて、塩化
ビニル−酢酸ビニル共重合体を混合使用する等、被転写
体の材質により適宜他の樹脂を混合併用することによ
り、より優れた密着性が得られることもある。また、熱
融着型接着剤の他に、熱硬化型、湿気硬化型、電離放射
線硬化型等の各種硬化型接着剤、或いは、粘着剤による
感圧型接着剤等の各種接着剤も適宜使用できる。なお、
接着剤層の厚さは通常1〜50μm程度である。また、
凹凸表面の被転写体側に接着剤層を形成する場合は、ス
プレーコート、フローコート等の公知の塗工法によれば
良い。As the adhesive, an appropriate one may be selected and used depending on the material of the transfer object and the like, and there is no particular limitation.
Speaking of the adhesive force developing mechanism, a so-called heat-fusible (heat-sensitive adhesive) adhesive which is generally used for a conventionally known transfer sheet may be used, and a pressure-sensitive or solvent-activated adhesive may be used.
In the case of the pressure-sensitive type, the transfer sheet usually has a configuration in which a release paper or a release film is laminated on the surface of the adhesive layer in order to protect the adhesive layer until immediately before transfer. Examples of the heat-sensitive adhesive include polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, thermoplastic polyester resin, thermoplastic urethane resin, polyamide resin obtained by polycondensation of dimer acid and ethylenediamine, and the like. Can be used. For example, when the transfer object is an ABS resin, an acrylic resin is one of the preferable resins used for the adhesive. This is because the acrylic resin can easily adjust the adhesion according to the material of the transfer-receiving body by copolymerizing various acrylic acid esters, methacrylic acid esters, and other vinyl monomers. When the transfer target is a vinyl chloride resin such as a vinyl chloride resin, in addition to the acrylic resin, a mixture of a vinyl chloride-vinyl acetate copolymer is used. By mixing and using the mixture, more excellent adhesion may be obtained. In addition to the heat-fusible adhesives, various curable adhesives such as a thermosetting type, a moisture-curable type, and an ionizing radiation-curable type, or various adhesives such as a pressure-sensitive adhesive using an adhesive can also be used as appropriate. . In addition,
The thickness of the adhesive layer is usually about 1 to 50 μm. Also,
When the adhesive layer is formed on the transfer object side of the uneven surface, a known coating method such as spray coating or flow coating may be used.
【0020】〔被転写体〕本発明の転写シートに対する
被転写体としては、特にその材質、形状に限定されるも
のではなく、例えば材質としては、アクリル系樹脂、塩
化ビニル系樹脂、アクリロニトリル−ブタジエン−スチ
レン共重合体(ABS樹脂)、ポリカーボネート系樹
脂、ポリエチレン、ポリプロピレン、フェノール樹脂等
の樹脂類、或いは、アルミニウム、鉄、ステンレス、真
鍮等の金属或いは金属化合物類、木質合板、木質単板、
中密度繊維板(MDF)等の木材類、ガラス、陶磁器、
タイル等のセラミック類、ALC(軽量気泡コンクリー
ト)、GRC(硝子繊維強化コンクリート)、スラグセ
メント等のセメント、ケイ酸カルシウム等と任意であ
る。また、形状も平板、曲面板、棒状体、立体物等と任
意である。被転写面の凹凸形状等によって、後述する適
宜な転写方法を採用して転写することができる。なお、
射出成形同時絵付け転写法では、被転写体の形状は転写
(樹脂成形)と同時に形作られるものである。[Transfer object] The transfer object for the transfer sheet of the present invention is not particularly limited to its material and shape. For example, the material may be an acrylic resin, a vinyl chloride resin, acrylonitrile-butadiene. -Resins such as styrene copolymer (ABS resin), polycarbonate resin, polyethylene, polypropylene and phenolic resin, or metals or metal compounds such as aluminum, iron, stainless steel and brass, wood plywood, wood veneer,
Wood such as medium density fiberboard (MDF), glass, ceramics,
Ceramics such as tiles, ALC (lightweight cellular concrete), GRC (glass fiber reinforced concrete), cement such as slag cement, calcium silicate and the like are optional. Also, the shape is arbitrary, such as a flat plate, a curved plate, a rod-shaped body, a three-dimensional object, and the like. The transfer can be performed by employing an appropriate transfer method described later, depending on the uneven shape of the transfer surface. In addition,
In the simultaneous injection molding and painting transfer method, the shape of the transferred object is formed simultaneously with the transfer (resin molding).
【0021】〔転写方法〕前記本発明の転写シートを用
いた本発明の転写方法は、特に限定されずに、各種転写
方法を利用できる。例えば、下記の様な従来公知の各種
の転写方法を利用できる。[Transfer Method] The transfer method of the present invention using the transfer sheet of the present invention is not particularly limited, and various transfer methods can be used. For example, the following various known transfer methods can be used.
【0022】特公昭56−45768号公報(オーバ
ーレイ法)、特公昭60−58014号公報(真空プレ
ス法)等に記載されるように、成形品等の立体形状物品
の表面に転写シートを、間に必要に応じ適宜接着剤を介
して対向又は載置し、立体形状物品側からの真空吸引に
よる圧力差により転写シートの転写層を立体形状物品の
表面に転写する、所謂真空成形積層法を利用した転写方
法(真空成形転写法)、 特開平6−315950号公報、特公平2−4208
0号公報に記載されるように、転写シートを射出成形の
雌雄両金型間に配置した後、溶融樹脂を型内に射出充填
し、樹脂成型品の成形と同時にその表面に転写シートか
ら転写層を転写させる、所謂射出成形同時絵付け転写方
法、 特公昭60−59876号公報、特開平5−1390
97号公報に記載されるように、転写シートを、転写層
を被転写体側に向けて、支持体側から弾性体ローラで加
圧し、転写層が被転写体に圧着後、支持体を剥離する、
所謂ローラ転写方法、 特公昭61−5895号公報、特公平3−2666号
公報等に記載されるように、円柱、多角柱等の柱状基材
の長軸方向に、転写シートを間に必要に応じ適宜接着剤
層を介して供給しつつ、複数の向きの異なるローラーに
より、柱状基材を構成する複数の側面に順次化粧シート
を加圧接着して転写層を転写してゆく、所謂ラッピング
加工方法による転写方法、 その他、BMC(Bulk Molding Compound) 成形法、S
MC(Sheet Molding Compound)成形法、ハンドレイアッ
プ成形法等のFRP(Fiber Reinforced Plastics) にお
ける各種成形法、或いは、RIM(Reaction Injection
Molding)、マッチドモールド成形法等の成形と同時に行
う転写方法、等がある。As described in JP-B-56-45768 (overlay method), JP-B-60-58014 (vacuum pressing method), etc., a transfer sheet is placed on the surface of a three-dimensional article such as a molded product. A so-called vacuum forming and laminating method, in which the transfer layer of the transfer sheet is transferred to the surface of the three-dimensional article by a pressure difference caused by vacuum suction from the three-dimensional article side by appropriately opposing or placing an adhesive as necessary. Transfer method (vacuum forming transfer method), JP-A-6-315950, JP-B-2-4208
As described in Japanese Patent Publication No. 0, after a transfer sheet is placed between both male and female molds for injection molding, molten resin is injected and filled into the mold, and simultaneously with molding of a resin molded product, the surface is transferred from the transfer sheet to the surface thereof. So-called injection molding simultaneous painting transfer method for transferring a layer, Japanese Patent Publication No. 60-59876, Japanese Patent Laid-Open No. 5-1390
No. 97, the transfer sheet, with the transfer layer facing the transfer object side, pressurized with an elastic roller from the support side, after the transfer layer is pressed against the transfer object, the support is peeled off,
As described in a so-called roller transfer method, Japanese Patent Publication No. 61-5895, Japanese Patent Publication No. Hei 3-2666, etc., a transfer sheet is required in the longitudinal direction of a columnar substrate such as a cylinder or a polygonal pillar. A so-called lapping process, in which the decorative layer is successively pressed and adhered to a plurality of side surfaces constituting the columnar base material by a plurality of rollers having different directions while being supplied through an adhesive layer as appropriate, and the transfer layer is transferred. Transfer method, BMC (Bulk Molding Compound) molding method, S
Various molding methods in FRP (Fiber Reinforced Plastics) such as MC (Sheet Molding Compound) molding method and hand lay-up molding method, or RIM (Reaction Injection)
Molding), a transfer method performed at the same time as molding such as a matched mold molding method, and the like.
【0023】なお、上記、及びは既に形状を有す
る被転写体に転写するものであり、及びの成形法
は、樹脂成形品として被転写体の形状発現と同時に転写
するものである。また、上記の方法では、樹脂の成形
型、又は別の型により転写シートを予備成形した後に、
樹脂を射出成形して成形と同時に転写する方法もある。
これと同様に、に列記の方法においても、転写シート
の成形は樹脂成形と同時の場合と、樹脂成形の前に予備
成形する場合がある。なお、ハンドレイアップ法では、
転写シートの成形は予備成形となる。The above-mentioned and the above-mentioned methods are used for transferring to an already-transferred object, and the molding method is for transferring the resin-molded article simultaneously with the development of the shape of the object-to-be-transferred. Further, in the above method, after pre-molding the transfer sheet with a resin mold, or another mold,
There is also a method of injection molding a resin and transferring the resin at the same time as molding.
Similarly, in the methods listed above, the transfer sheet may be formed simultaneously with resin molding, or may be preformed before resin molding. In the hand lay-up method,
The transfer sheet is preformed.
【0024】また、新規な転写方法として、転写圧に
固体粒子の衝突圧を利用する方法がある。この転写方法
は、(弾性体)ローラ転写法、真空成形転写法等では不
可能な大きな三次元形状等の表面凹凸の被転写体も可能
であり、後で詳述する。Further, as a novel transfer method, there is a method utilizing the collision pressure of solid particles as the transfer pressure. This transfer method can also be used for a transfer target having a surface irregularity such as a large three-dimensional shape that cannot be obtained by an (elastic) roller transfer method, a vacuum forming transfer method, or the like.
【0025】先ず、上記各種転写方法の中から、真空成
形転写法に属する真空プレス法、射出成形同時絵付け転
写法、弾性体ローラ転写法、それに固体粒子衝突圧を用
いた転写方法について、順に説明する。First, among the various transfer methods described above, a vacuum press method belonging to the vacuum forming transfer method, an injection molding simultaneous painting transfer method, an elastic roller transfer method, and a transfer method using solid particle collision pressure are described in this order. explain.
【0026】(真空成形転写法:真空プレス法)図2
は、上記の真空成形積層法を利用した真空成形転写法
の中でも、真空プレス法の説明図である。真空プレス法
は、真空ラミネート法と似ているが、転写シートの被転
写体への加圧に、転写シートの支持体側と被転写体側と
の空気圧差の他に更に、ゴム状弾性膜の収縮圧も利用す
る点、転写シートの加熱をヒータにより加熱されたゴム
状弾性膜を通して行う点等が若干異なり、転写シートの
均一加熱とより強い圧接力等に特徴がある。(Vacuum Forming Transfer Method: Vacuum Press Method) FIG.
FIG. 4 is an explanatory diagram of a vacuum press method among the vacuum forming transfer methods using the above-described vacuum forming and laminating method. The vacuum pressing method is similar to the vacuum laminating method, except that the pressure of the transfer sheet against the transfer object is reduced by the air pressure difference between the support side and the transfer object side of the transfer sheet. There is a slight difference in that the pressure is also used, and that the transfer sheet is heated through a rubber-like elastic film heated by a heater, and is characterized by uniform heating of the transfer sheet and a stronger pressing force.
【0027】図2の概略構成図に示す真空プレス装置3
0は、上方には流体圧シリンダー等の上下動作手段13
により上下に移動可能な上室11があり、上室11に対
面して下方に下室21がある。上室11の内部にはヒー
タ12が配置されている。また上室11の下部開口面は
ゴム状弾性膜15にて全面が覆われている。ゴム状弾性
膜15には通常シリコーンゴム等が用いられる。下室2
1はその上面が複数の排気孔23を有する置台22とな
っている。上室11及び下室21には、それぞれ給排気
ポート14、24があり、それぞれの内部気圧を独立に
調整できる。真空プレス法では、先ず、上室11が上方
に移動して下室21と分離した状態で、被転写体Bを置
台22に配置し、さらに転写シートSを被転写体Bの上
から配置する。その際、転写シートSの転写層側が被転
写体Bと向き合う様にする。接着剤を転写シートや被転
写体の外表面に施しておく場合には、この段階で塗布な
どしておく。また接着剤が溶剤を含む場合は、この段階
で乾燥させておく。次いで、上室11を下方に移動し下
室21に圧接し、上室11及び下室21を密閉する。図
2はこの状態を示している。次に、下室21内を減圧
し、上室11内を加圧する。さらに、ヒータ12を用い
てゴム状弾性膜15を通して転写シートSを加熱軟化さ
せ成形可能状態とする。この結果、上室11と下室21
との空気圧差及びゴム状弾性膜15の収縮圧により、転
写シートSは被転写体Bの外表面に対して加圧され、そ
の結果、転写シートSは被転写体Bの外表面に沿って変
形し被転写体Bへ密着していく。最後に、下室21の減
圧を解除するとともに上室11の加圧を解除して両室を
大気圧にし、上室11を上方に移動し上室11及び下室
21を分離し、転写シートSが貼着した被転写体Bを取
り出し、転写シートの支持体を剥離することで、転写層
が転写され絵柄模様が施された三次元形状の転写品が得
られる。Vacuum press 3 shown in the schematic diagram of FIG.
0 is a vertical movement means 13 such as a hydraulic cylinder
There is an upper chamber 11 which can move up and down, and a lower chamber 21 is provided below and facing the upper chamber 11. A heater 12 is disposed inside the upper chamber 11. The lower opening surface of the upper chamber 11 is entirely covered with a rubber-like elastic film 15. Silicone rubber or the like is usually used for the rubber-like elastic film 15. Lower room 2
Reference numeral 1 denotes a table 22 having an upper surface having a plurality of exhaust holes 23. The upper chamber 11 and the lower chamber 21 have supply / exhaust ports 14 and 24, respectively, so that their internal pressures can be adjusted independently. In the vacuum press method, first, in a state where the upper chamber 11 moves upward and is separated from the lower chamber 21, the transfer target B is disposed on the mounting table 22, and the transfer sheet S is disposed from above the transfer target B. . At this time, the transfer layer side of the transfer sheet S faces the transfer target B. If the adhesive is to be applied to the outer surface of the transfer sheet or the transfer object, it is applied at this stage. If the adhesive contains a solvent, it is dried at this stage. Next, the upper chamber 11 is moved downward and pressed against the lower chamber 21 to seal the upper chamber 11 and the lower chamber 21. FIG. 2 shows this state. Next, the pressure in the lower chamber 21 is reduced, and the pressure in the upper chamber 11 is increased. Further, the transfer sheet S is heated and softened through the rubber-like elastic film 15 using the heater 12 to be in a moldable state. As a result, the upper room 11 and the lower room 21
The transfer sheet S is pressed against the outer surface of the transfer target B by the air pressure difference between the transfer sheet S and the contraction pressure of the rubber-like elastic film 15. It deforms and comes into close contact with the transfer-receiving member B. Finally, the pressure in the lower chamber 21 is released, and the pressure in the upper chamber 11 is released to bring both chambers to the atmospheric pressure. Then, the upper chamber 11 is moved upward to separate the upper chamber 11 and the lower chamber 21 from each other. The transfer object B to which the S is adhered is taken out, and the support of the transfer sheet is peeled off, whereby a three-dimensional transfer product in which the transfer layer is transferred and a picture pattern is provided is obtained.
【0028】(射出成形同時絵付け転写法)次に、図3
は、射出成形同時絵付け転写方法の説明図である。同図
は既に樹脂がキャビティに射出され転写シートSも成形
されて樹脂に密着した状態である。移動可能なダイプレ
ート(可動盤)71には凹部キャビティを有する雌型8
1が固定され、他方のダイプレート(固定盤)72には
射出孔を有する雄型82が固定され、その背面にはノズ
ル73が位置する。ダイプレート71は背面の油圧シリ
ンダー74で図面で左右方向に移動し、雌型81と雄型
82とを圧接させて型締めを行う。転写シートSは雌型
81と雄型82との間に挿入される。また、雌型81の
キャビティ面には吸引管を通じて真空ポンプVPに接続
された吸引孔が穿孔されており、転写シートSは雌型8
1のキャビティ面を利用して型締め前に図示しない加熱
板で加熱軟化させて予備真空成形される。そして、加熱
板を退避後に型締めを行い、キャビティ(成形空洞)内
へノズル73から溶融樹脂等の流動状態の樹脂83を射
出、充填し、冷却や化学反応で樹脂を固化させた後、型
開きを行う。そして、成形品の取出しと同時又は取出し
た後に、成形品から転写シートの支持体を剥離除去する
と、転写層が成形品に転写され、絵柄模様が施された三
次元形状の成形品が得られる。(Injection molding simultaneous painting transfer method) Next, FIG.
FIG. 4 is an explanatory view of a simultaneous painting transfer method of injection molding. The figure shows a state in which the resin has already been injected into the cavity, the transfer sheet S has also been formed, and has been brought into close contact with the resin. Female mold 8 having concave cavity in movable die plate (movable plate) 71
1 is fixed, a male die 82 having an injection hole is fixed to the other die plate (fixing plate) 72, and a nozzle 73 is located on the back surface thereof. The die plate 71 is moved in the left-right direction in the drawing by the hydraulic cylinder 74 on the back surface, and presses the female die 81 and the male die 82 to perform die clamping. The transfer sheet S is inserted between the female mold 81 and the male mold 82. Further, a suction hole connected to the vacuum pump VP through a suction pipe is formed in the cavity surface of the female die 81, and the transfer sheet S is
Before the mold is closed, it is heated and softened by a heating plate (not shown) by using the cavity surface of the first and is subjected to preliminary vacuum forming. After the heating plate is retracted, the mold is clamped, and a resin 83 in a flowing state such as a molten resin is injected and filled from a nozzle 73 into a cavity (molding cavity), and the resin is solidified by cooling or a chemical reaction. Open. Then, simultaneously with or after the removal of the molded article, when the support of the transfer sheet is peeled off from the molded article, the transfer layer is transferred to the molded article, and a three-dimensional molded article with a picture pattern is obtained. .
【0029】(弾性体ローラ転写法)次に、図4は、弾
性体ローラ転写法の説明図である。同図では、被転写体
Bには既に接着剤層Aが施されており、この被転写体に
対して、支持体1と転写層2とからなる転写シートS
を、転写層側を被転写体側に向けて、支持体側から弾性
体ローラRで加圧して転写圧を加えて、転写層が被転写
体に接着後、支持体を剥離することで、転写層を被転写
体に転写する。使用する弾性体ローラRとしては、通
常、鉄等の剛体の回転軸芯R1の表面周囲を軟質の弾性
体R2で被覆したローラを用いる。弾性体R2として
は、シリコーンゴム、フッ素ゴム、天然ゴム、ブタジエ
ンゴム等のゴムを用いる。特に、耐熱性、弾性等の点か
らシリコーンゴムが好ましい。また特に、被転写体の表
面(被転写面)が凹凸形状(三次元形状)をなす場合
は、弾性体として、JIS規格のゴム硬度が60°以下
のものを使用することが、転写シートを凹凸面に追従成
形させる為に好ましい。弾性体ローラの直径は、通常5
〜20cm程度である。また、通常、弾性体ローラは加
熱ローラとしても用いる。(Elastic Roller Transfer Method) Next, FIG. 4 is an explanatory view of the elastic roller transfer method. In FIG. 1, an adhesive layer A has already been applied to a transfer object B, and a transfer sheet S including a support 1 and a transfer layer 2 is applied to the transfer object.
With the transfer layer side facing the transfer object side, the transfer layer is pressed from the support side by the elastic roller R and transfer pressure is applied, and after the transfer layer adheres to the transfer object, the support is peeled off. Is transferred to a transfer object. As the elastic roller R to be used, a roller in which a surface of a rigid rotating shaft core R1 such as iron is covered with a soft elastic member R2 is usually used. Rubber such as silicone rubber, fluorine rubber, natural rubber, butadiene rubber or the like is used as the elastic body R2. Particularly, silicone rubber is preferable from the viewpoint of heat resistance, elasticity, and the like. In particular, when the surface of the object to be transferred (transfer surface) has an uneven shape (three-dimensional shape), a rubber having a JIS standard rubber hardness of 60 ° or less may be used as the elastic body. It is preferable to follow-mold the uneven surface. The diameter of the elastic roller is usually 5
It is about 20 cm. Usually, the elastic roller is also used as a heating roller.
【0030】(固体粒子衝突圧による転写方法)この転
写方法は、新規な方法であって、特に凹凸表面に転写す
る場合に有効である。すなわち、図5に示す如く、支持
体1と転写層2とからなる転写シートSを、その転写層
側を被転写体B側に対向させて〔図5(A)〕、支持体
側から多数の固体粒子Pを衝突させ、その衝突圧によっ
て転写層を被転写体の表面形状に追従させ成形させると
ともに転写層を被転写体表面に圧接して接着させ〔図5
(B)〕、しかる後に、支持体のみ剥離除去することで
転写を行う〔図5(C)〕ことによって、転写層が転写
された転写品Dが得られるというものである。なお、図
5は、被転写体Bには予め接着剤層Aを施しておく形態
である。また、固体粒子Pに付記した矢印は、固体粒子
の速度ベクトルを表す。(Transfer Method Using Solid Particle Impact Pressure) This transfer method is a novel method, and is particularly effective when transferring to an uneven surface. That is, as shown in FIG. 5, a transfer sheet S composed of a support 1 and a transfer layer 2 is placed such that the transfer layer side faces the transfer target B side [FIG. The solid particles P are caused to collide with each other to form the transfer layer by following the surface shape of the transfer object by the collision pressure, and the transfer layer is pressed against and adhered to the transfer object surface [FIG.
(B)] Thereafter, the transfer is performed by peeling and removing only the support (FIG. 5 (C)), thereby obtaining a transfer product D on which the transfer layer has been transferred. FIG. 5 shows a form in which the adhesive layer A is applied to the transfer object B in advance. Arrows attached to the solid particles P represent velocity vectors of the solid particles.
【0031】固体粒子Pとしては、ガラスビーズ等の無
機粒子、亜鉛、鉄等の金属粒子、ナイロンビーズや架橋
ゴムビーズ等の樹脂ビーズ等の有機粒子、或いは金属等
の無機粒子と樹脂とからなる無機物・樹脂複合粒子等を
使用する。粒子形状は球形状が好ましいが、その他の形
状でも用い得る。粒径は通常10〜1000μm程度で
ある。固体粒子は噴出器から転写シートに向かって噴出
させ、転写シートに衝突したその衝突圧が転写圧とな
る。噴出器には、代表的には羽根車や吹出ノズルを用い
る。羽根車はその回転により固体粒子を加速し、吹出ノ
ズルは高速の流体流で固体粒子を加速する。羽根車や吹
出ノズルには、サンドブラスト或いはショットブラス
ト、ショットピーニング等とブラスト分野にて使用され
ているものを流用できる。例えば羽根車には遠心式ブラ
スト装置、吹出ノズルには加圧式や吸引式ブラスト装
置、ウェットブラスト装置等である。遠心式ブラスト装
置は羽根車の回転力で固体粒子を加速し噴出する。加圧
式ブラスト装置は、圧縮空気に混合しておいて固体粒子
を、空気と共に噴出する。吸引式ブラスト装置は、圧縮
空気の高速流で生ずる負圧部に固体粒子を吸い込み、空
気と共に噴出する。ウェットブラスト装置は、固体粒子
を液体と混合して噴出する。Examples of the solid particles P include inorganic particles such as glass beads, metal particles such as zinc and iron, organic particles such as resin beads such as nylon beads and crosslinked rubber beads, and inorganic particles composed of inorganic particles such as metal and resin.・ Use resin composite particles. The particle shape is preferably spherical, but other shapes can also be used. The particle size is usually about 10 to 1000 μm. The solid particles are ejected from the ejector toward the transfer sheet, and the collision pressure that collides with the transfer sheet becomes the transfer pressure. Typically, an impeller or a blowing nozzle is used for the ejector. The impeller accelerates the solid particles by its rotation, and the blowing nozzle accelerates the solid particles with a high-speed fluid flow. Sandblasting, shot blasting, shot peening and the like used in the blasting field can be used for the impeller and the blowing nozzle. For example, a centrifugal blast device is used for the impeller, and a pressurized or suction blast device, a wet blast device, or the like is used for the blowing nozzle. The centrifugal blast device accelerates and ejects solid particles by the rotational force of the impeller. A pressurized blasting device ejects solid particles together with air while being mixed with compressed air. The suction-type blast device sucks solid particles into a negative pressure portion generated by a high-speed flow of compressed air, and ejects the solid particles together with the air. The wet blast device mixes and ejects solid particles with a liquid.
【0032】図6及び図7は、羽根車による噴出器の一
例を示す概念図である。羽根車812は、複数の羽根8
13がその両側を2枚の側面板814で固定され、且つ
回転中心部は羽根813が無い中空部815となってい
る。中空部内には方向制御器816を有する(図7参
照)。方向制御器は、外周の一部が円周方向に開口した
開口部817を有し中空筒状で羽根車812の回転軸芯
と同一回転軸芯で、羽根車とは独立して回動自在となっ
ている。使用時は、方向制御器の開口部の向きの設定よ
り固体粒子の噴出方向を調整する。更に、方向制御器内
には、内部中空で羽根車812と同一回転軸芯のもう一
つの羽根車が散布器818を有する(図7参照)。散布
器は外側の羽根車812と共に回転する。そして、前記
側面板814の回転中心には回転軸819が固定され、
回転軸819は軸受820で回転自在に軸支され電動機
等の回転動力源(図示略)によって駆動回転され、羽根
車812が回転する。そして、固体粒子Pをホッパ等か
ら散布器818の内部に供給する。すると、固体粒子は
散布器の羽根車で外側に飛び散り、方向制御器816の
開口部817によって許された方向にのみ放出され、外
側の羽根車812の羽根813と羽根813との間に供
給される。そして、固体粒子は羽根813と衝突し、羽
根車812の回転力で加速されて、羽根車から噴出する
というものである。なお、羽根車812の寸法は、通常
直径5〜60cm程度、羽根の幅は5〜20cm程度、
羽根の長さは、ほぼ羽根車の直径程度、羽根車の回転数
は500〜5000〔rpm〕程度である。そして、固
体粒子の噴出速度は、10〜50〔m/s〕程度、投射
密度(被転写体単位面積当たりに衝突させる固体粒子総
重量)は10〜150〔kg/m2 〕程度である。FIGS. 6 and 7 are conceptual diagrams showing an example of the ejector using the impeller. The impeller 812 includes a plurality of impellers 8.
13 is fixed on both sides by two side plates 814, and the center of rotation is a hollow portion 815 without the blade 813. A direction controller 816 is provided in the hollow portion (see FIG. 7). The direction controller has a hollow cylindrical shape having an opening 817 with a part of the outer periphery opened in the circumferential direction, has the same rotation axis as the rotation axis of the impeller 812, and is rotatable independently of the impeller. It has become. In use, the ejection direction of the solid particles is adjusted by setting the direction of the opening of the direction controller. Further, another impeller having a hollow inside and the same rotation axis as the impeller 812 has a sprayer 818 in the direction controller (see FIG. 7). The spreader rotates with the outer impeller 812. A rotation shaft 819 is fixed to the center of rotation of the side plate 814,
The rotating shaft 819 is rotatably supported by a bearing 820 and is driven and rotated by a rotating power source (not shown) such as an electric motor, so that the impeller 812 rotates. Then, the solid particles P are supplied from a hopper or the like to the inside of the sprayer 818. Then, the solid particles are scattered outward by the impeller of the sprayer, discharged only in the direction allowed by the opening 817 of the direction controller 816, and supplied between the blades 813 and 813 of the outer impeller 812. You. Then, the solid particles collide with the impeller 813, are accelerated by the rotational force of the impeller 812, and are ejected from the impeller. In addition, the size of the impeller 812 is usually about 5 to 60 cm in diameter, the width of the impeller is about 5 to 20 cm,
The length of the impeller is about the diameter of the impeller, and the rotation speed of the impeller is about 500 to 5000 [rpm]. The ejection speed of the solid particles is about 10 to 50 [m / s], and the projection density (total weight of solid particles to be collided per unit area of the transfer object) is about 10 to 150 [kg / m 2 ].
【0033】次に、図8は吹出ノズルを用いた噴出器の
一例を示す概念図である。同図の噴出器840は固体粒
子加速流体として空気等の気体を用い、固体粒子噴出時
に該気体と固体粒子を混合して噴出する形態の噴出器の
一例である。噴出器840は、固体粒子Pと流体Fを混
合する誘導室841と、誘導室内に流体を噴出する内部
ノズル842と、ノズル開口部843から固体粒子及び
流体を噴出する吹出ノズル部844からなる。圧縮機等
からの加圧状態の流体Fを、内部ノズル842から噴出
し誘導室841を経てノズル844のノズル開口部84
3から噴出する際に、噴出器内の誘導室841にて、高
速で流れる流体流の作用で負圧を作り、この負圧により
固体粒子を流体流に導き混合し、流体流で固体粒子を加
速、搬送して、ノズル844のノズル開口部843から
流体流と共に噴出するものである。なお、固体粒子加速
流体に液体を用いる吹出ノズル等もある。流体圧は吹付
圧力で通常0.1〜10kg/cm2 程度である。流体
流の流速は、液流では通常1〜20m/秒程度、気流で
は通常5〜80m/秒程度である。Next, FIG. 8 is a conceptual diagram showing an example of an ejector using an ejection nozzle. An ejector 840 shown in the figure is an example of an ejector in which a gas such as air is used as a solid particle accelerating fluid, and the gas and the solid particles are mixed and ejected when ejecting the solid particles. The ejector 840 includes an induction chamber 841 that mixes the solid particles P and the fluid F, an internal nozzle 842 that ejects the fluid into the induction chamber, and an ejection nozzle unit 844 that ejects the solid particles and the fluid from the nozzle opening 843. A fluid F in a pressurized state from a compressor or the like is ejected from an internal nozzle 842, passes through an induction chamber 841 and passes through a nozzle opening 84 of a nozzle 844.
3, a negative pressure is created by the action of a fluid flow flowing at a high speed in the guide chamber 841 in the ejector, and the negative pressure guides and mixes the solid particles into the fluid flow, thereby forming the solid particles in the fluid flow. It accelerates, conveys, and jets out together with the fluid flow from the nozzle opening 843 of the nozzle 844. In addition, there is a blowing nozzle or the like that uses a liquid as a solid particle acceleration fluid. The fluid pressure is usually about 0.1 to 10 kg / cm 2 in spray pressure. The flow velocity of the fluid flow is usually about 1 to 20 m / sec for the liquid flow, and is usually about 5 to 80 m / sec for the air flow.
【0034】噴出器は、1個のみでは加圧領域を所望の
形状、大きさに出来ない場合は、複数用いる。例えば、
転写シート及び被転写体の送り方向に直交して幅方向に
全幅を加圧領域とするには、幅方向に一直線状に複数個
を配置して、幅方向に直線状で幅広の帯状形状の加圧領
域とする。また、衝突圧印加時間を長くするには、噴出
器は、例えば転写シート及び被転写体の送り方向に向か
って2列以上配置する多段配置とする。複数個を配列時
は、個々の噴出器の隣接する加圧領域を互いに一部重複
させることが好ましい。なお、固体粒子の衝突圧は、例
えば転写シート送り方向に直交する幅方向の中央部が最
大で、幅方向両端部に近い程低下する山型圧力分布等
と、不均一に設定することもできる。この設定は、中央
部から両端部に向かって順次段階的に圧着を進行させ、
内部に空気を抱き込むことを防ぐ。もちろん、衝突圧は
転写が完全に行える圧以上で、且つ転写シートの歪み、
被転写体の変形、破損等の生じない圧以下の適正圧力範
囲内とする。また、複数の噴出器を用いる場合、被転写
体の被転写面の包絡面(の搬送方向に直交する断面形
状)が例えば円型になる円筒状の凸曲面であれば、各噴
出器が主とし受け持つ個別の衝突面に対して、略垂直に
固体粒子が衝突する様に、噴出器の向きを、近接する被
転写体の包絡面法線方向にして配置することもできる。
また、実際に固体粒子を用いて転写する際は、固体粒子
は周囲の雰囲気中に飛散させずに且つ循環再利用するの
が好ましい。そこで、転写する空間を周囲空間と隔離す
るチャンバ内で、固体粒子を転写シートに衝突させて転
写圧を加える等すると良い。支持体の剥離は、チャンバ
外でも良い。If the pressurized area cannot be formed into a desired shape and size by using only one ejector, a plurality of ejectors are used. For example,
In order to make the entire width in the width direction perpendicular to the feed direction of the transfer sheet and the transfer object, a plurality of pressure regions are arranged in a straight line in the width direction. Pressurized area. Further, in order to lengthen the collision pressure application time, the ejectors are arranged in a multi-stage arrangement in which, for example, two or more rows are arranged in the feed direction of the transfer sheet and the object to be transferred. When a plurality are arranged, it is preferable that the adjacent pressurized regions of the individual ejectors partially overlap each other. The collision pressure of the solid particles can be set non-uniformly, for example, a peak-shaped pressure distribution or the like that is maximum in the width direction perpendicular to the transfer sheet feeding direction and decreases as it approaches the both ends in the width direction. . In this setting, the crimping is advanced step by step from the center to both ends,
Prevents air from being trapped inside. Of course, the collision pressure is higher than the pressure at which the transfer can be completely performed, and the distortion of the transfer sheet,
The pressure should be within an appropriate pressure range that does not cause deformation, breakage, etc. of the transfer target. When a plurality of ejectors are used, if the envelope surface (the cross-sectional shape perpendicular to the conveying direction) of the transfer surface of the transfer object is, for example, a cylindrical convex curved surface having a circular shape, each ejector is mainly used. The ejector can also be arranged so that the direction of the ejector is normal to the envelope surface of the adjacent object to be transferred so that the solid particles impinge substantially perpendicularly on the respective impact surfaces.
In addition, when actually transferring using solid particles, it is preferable that the solid particles are circulated and reused without being scattered in the surrounding atmosphere. Therefore, it is preferable to apply a transfer pressure by causing the solid particles to collide with the transfer sheet in a chamber that separates the transfer space from the surrounding space. The support may be peeled off the chamber.
【0035】〔転写品の用途〕上述した転写シート及び
それを用いた転写方法によって得られる転写品は、転写
された装飾面が平面又は特に三次元形状等の凹凸表面の
物品として各種用途に用いられ得る。例えば、化粧部材
として、外壁、塀、屋根、門扉、破風板等の外装材、壁
面、天井、床等の建築物の内装、窓枠、扉、手摺、敷
居、鴨居等の建具類の表面化粧、家具や弱電・OA機器
のキャビネットの表面化粧、自動車、電車、航空機等の
車両内装に用いられ、或いは、瓶、罐、箱、カップ等の
容器等として用いられる。[Uses of Transferred Article] The transfer sheet obtained by the above-described transfer sheet and the transfer method using the same can be used for various purposes as an article having a transferred decorative surface having a flat surface or an uneven surface such as a three-dimensional shape. Can be For example, as a decorative material, exterior materials such as outer walls, fences, roofs, gates, and gable boards; interior decorations of buildings such as walls, ceilings, floors, etc .; It is used for surface decoration of furniture and cabinets of light electric / OA equipment, interior of vehicles such as automobiles, trains, and aircrafts, or used as containers such as bottles, cans, boxes, cups, and the like.
【0036】[0036]
【実施例】以下、本発明を実施例及び比較例で更に具体
的に説明する。EXAMPLES The present invention will be described more specifically with reference to examples and comparative examples.
【0037】〔実施例1〕 (転写シート)支持体として、アイソタクチックポリプ
ロピレンを90重量%、アタクチックポリプロピレンを
10重量%、エルカ酸アミド1000ppmからなる、
ポリプロピレン系のオレフィン系熱可塑性エラストマー
をTダイより押し出して、厚さ100μmのフィルムを
得た。上記支持体に、ポリビニルブチラール系樹脂から
なる剥離インキ、ニトロセルロース系樹脂からなる絵柄
インキを用いて輪転グラビア印刷により、剥離層、その
上に3色刷りの木目模様の絵柄層を形成して転写層と
し、本発明の転写シートを得た。Example 1 (Transfer sheet) As a support, 90% by weight of isotactic polypropylene, 10% by weight of atactic polypropylene, and 1000 ppm of erucamide were used.
A polypropylene-based olefin-based thermoplastic elastomer was extruded from a T-die to obtain a film having a thickness of 100 µm. On the support, a release layer formed of a polyvinyl butyral-based resin and a rotatable gravure printing using a pattern ink formed of a nitrocellulose-based resin are used, and a transfer layer is formed by forming a three-color wood grain pattern layer thereon. Thus, a transfer sheet of the present invention was obtained.
【0038】(転写)上記転写シートを用いて、キッチ
ン扉形状のMDF(中密度繊維板)として厚み30m
m、縦150mm、横100mmの直方体で角の丸みは
半径18mmの被転写体(図9参照)を用意した。そし
て、この被転写体の表面にウレタン系の接着剤(コニシ
株式会社製、CVC45L)をスプレー塗工した。次い
で、前記転写シートを転写層が被転写体側を向く様に被
転写体上に被せ、転写シートを赤外線ヒータにて100
℃に加熱して軟化させ、被転写体側から真空吸引し、図
2の如き真空プレス転写法により、転写した。その結
果、転写シートは被転写体の凹凸表面に追従し、転写ヌ
ケ不良も生ぜず、しかも、支持体のネッキング発生は無
く、絵柄の不均一な歪みも認められず、美観に優れた転
写品として内装用の化粧材が得られた。そして、最後
に、表面に、アクリルポリオールとヘキサメチレンジイ
ソシアネートとからなる透明な2液硬化型ウレタン塗装
を行った。(Transfer) Using the above transfer sheet, a kitchen door-shaped MDF (medium density fiberboard) having a thickness of 30 m
A transfer object (see FIG. 9) having a rectangular parallelepiped having a length of 150 mm and a width of 100 mm and a radius of 18 mm was prepared. Then, a urethane-based adhesive (CVC45L, manufactured by Konishi Co., Ltd.) was spray-coated on the surface of the transfer object. Next, the transfer sheet is placed on the transfer object such that the transfer layer faces the transfer object side, and the transfer sheet is heated by an infrared heater for 100 hours.
C., the mixture was softened by heating to a temperature of .degree. C., vacuum-sucked from the transfer-receiving body side, and transferred by a vacuum press transfer method as shown in FIG. As a result, the transfer sheet follows the uneven surface of the transferred object, does not cause transfer failure, and does not cause necking of the support, does not show uneven distortion of the pattern, and is excellent in appearance. As a result, a decorative material for interior was obtained. Finally, a transparent two-component curable urethane coating composed of acrylic polyol and hexamethylene diisocyanate was applied to the surface.
【0039】〔実施例2〕 (転写シート)支持体として、アイソタクチックポリプ
ロピレンを80重量%、アタクチックポリプロピレンを
20重量%、エルカ酸アミド1000ppmからなる、
ポリプロピレン系のオレフィン系熱可塑性エラストマー
をTダイより押し出して、厚さ80μmのフィルムを得
た。上記支持体に、ポリエステルポリオールとトリレン
ジイソシアネートとからなる2液硬化型ウレタンからな
る剥離インキ、アクリル系樹脂と塩化ビニル−酢酸ビニ
ル共重合体との混合系からなる絵柄インキ(昭和インク
工業所製、BC72)、塩化ビニル−酢酸ビニル共重合体
からなる接着インキを用いて輪転グラビア印刷により、
剥離層、砂目模様の絵柄層、接着剤層を順次形成して転
写層とし、本発明の転写シートを得た。Example 2 (Transfer sheet) As a support, 80% by weight of isotactic polypropylene, 20% by weight of atactic polypropylene, and 1000 ppm of erucamide were used.
A polypropylene-based olefin-based thermoplastic elastomer was extruded from a T-die to obtain a film having a thickness of 80 µm. A release ink composed of a two-component curable urethane composed of a polyester polyol and tolylene diisocyanate, and a design ink composed of a mixture of an acrylic resin and a vinyl chloride-vinyl acetate copolymer (manufactured by Showa Ink Industries, Ltd.) , BC72), by rotogravure printing using an adhesive ink comprising a vinyl chloride-vinyl acetate copolymer.
A transfer layer of the present invention was obtained by sequentially forming a release layer, a grainy pattern layer, and an adhesive layer to form a transfer layer.
【0040】(転写)上記転写シートを用いて、射出型
を利用して予備成形を行う形態で、射出成形同時絵付け
転写法にて転写を行った。先ず、図3の如く射出成形金
型内に転写層が射出樹脂側を向く様に挿入し、熱板にて
転写シートを100℃で加熱・軟化させた上で、真空成
形にて雌型側に転写シートを予備成形した後、型締め
し、熔融したABS樹脂を雄型の湯口(ゲート)からキ
ャビティに射出し充填し、固化させて、射出成形した。
その結果、転写シートは樹脂成形品の凹凸面に追従し、
転写ヌケ不良を生ぜず、しかも、支持体のネッキング発
生は無く、絵柄の不均一な歪みも認められず、美観に優
れた転写品として、プラスチック成形品が得られた。(Transfer) Using the above transfer sheet, transfer was performed by injection molding simultaneous painting transfer method in the form of performing preliminary molding using an injection mold. First, as shown in FIG. 3, the transfer layer is inserted into the injection mold so that the transfer resin faces the injection resin side, the transfer sheet is heated and softened at 100 ° C. with a hot plate, and then the female mold is formed by vacuum molding. After the transfer sheet was preformed, the mold was clamped, and the molten ABS resin was injected into the cavity from a male mold gate (gate), filled, solidified, and injection molded.
As a result, the transfer sheet follows the uneven surface of the resin molded product,
No plastic transfer failure occurred, no necking of the support occurred, no uneven distortion of the picture was observed, and a plastic molded product was obtained as a transfer product excellent in aesthetic appearance.
【0041】〔実施例3〕 (転写シート)支持体として、アイソタクチックポリプ
ロピレンを55重量%、アタクチックポリプロピレンを
45重量%、エルカ酸アミド1000ppmからなる、
ポリプロピレン系のオレフィン系熱可塑性エラストマー
をTダイより押し出して、厚さ100μmのフィルムを
得た。上記支持体に、直接、アクリルポリオール系の絵
柄インキにて、煉瓦積み模様の絵柄を輪転グラビア印刷
して絵柄層を転写層として形成し、本発明の転写シート
を得た。Example 3 (Transfer sheet) The support was composed of 55% by weight of isotactic polypropylene, 45% by weight of atactic polypropylene, and 1000 ppm of erucamide.
A polypropylene-based olefin-based thermoplastic elastomer was extruded from a T-die to obtain a film having a thickness of 100 µm. A pattern of a brickwork pattern was rotogravure-printed directly on the support with an acrylic polyol-based pattern ink to form a pattern layer as a transfer layer, thereby obtaining a transfer sheet of the present invention.
【0042】(転写)被転写体として、図10(A)の
平面図及び図10(B)の要部斜視図に示す様な、表面
に幅6mm、深さ2mmの煉瓦積みの目地となる溝状凹
部401と、煉瓦部分の平坦凸部402を大柄な凹凸と
して有し、平坦凸部402上に微細凹凸403を有する
ケイ酸カルシウム板に、ウレタン系の接着剤をスプレー
塗工し、上記転写シートをその転写層側が被転写体側を
向く様にして、被転写体に被せた。次いで、転写シート
を100℃に加熱し軟化させた後、固体粒子として、平
均粒径0.3mmの球形の亜鉛球を、平均速度35m/
sで転写シートの支持体側に衝突させて転写圧を押圧し
て、冷却後、支持体を剥離することで、転写を行った
(図5参照)。その結果、転写シートは被転写体の凹凸
表面に追従し、転写ヌケ不良を生ぜず、しかも、支持体
のネッキング発生は無く、絵柄の不均一な歪みも認めら
れず、美観に優れた転写品として外装用の化粧板であ
る、加飾窯業系パネルが得られた。そして、最後に、表
面に透明なウレタン塗装を行った。(Transfer) As a transfer object, as shown in a plan view of FIG. 10A and a perspective view of a main part of FIG. 10B, it becomes a joint of brickwork having a width of 6 mm and a depth of 2 mm on the surface. The grooved concave portion 401 and the flat convex portion 402 of the brick portion are formed as large irregularities, and a calcium silicate plate having fine irregularities 403 on the flat convex portion 402 is spray-coated with a urethane-based adhesive, The transfer sheet was placed on the transfer object such that the transfer layer side faced the transfer object side. Next, after the transfer sheet is heated to 100 ° C. to soften it, spherical zinc spheres having an average particle diameter of 0.3 mm are formed as solid particles at an average speed of 35 m / m.
The transfer was performed by colliding the transfer sheet with the support side of the transfer sheet in s to press the transfer pressure, and after cooling, peeling off the support (see FIG. 5). As a result, the transfer sheet follows the concave and convex surface of the transferred object, does not cause transfer defects, and has no necking of the support, no uneven distortion of the pattern, and is excellent in appearance. As a decorative panel for exterior, a decorative ceramic panel was obtained. Finally, a transparent urethane coating was applied to the surface.
【0043】〔実施例4〕 (転写シート及び転写)転写シートの支持体を、アイソ
タクチックポリプロピレンを95重量%、アタクチック
ポリプロピレンを5重量%、エルカ酸アミド1000p
pmからなる厚さ100μmのフィルムとした他は、実
施例1と同様にして転写シートを得て、そして実施例1
と同様にしてMDFからなる被転写体に転写を行った。
その結果、転写シートは被転写体の凹凸表面に追従し、
転写ヌケ不良を生ぜず、しかも、支持体のネッキング発
生も無く、絵柄が不均一な歪みも認められず、美観に優
れた転写品として内装用の化粧材が得られた。Example 4 (Transfer Sheet and Transfer) The support of the transfer sheet was composed of 95% by weight of isotactic polypropylene, 5% by weight of atactic polypropylene, and 1000 p of erucamide.
A transfer sheet was obtained in the same manner as in Example 1 except that a film of 100 μm in thickness was formed.
In the same manner as in the above, transfer was performed on a transfer member made of MDF.
As a result, the transfer sheet follows the uneven surface of the transfer object,
A transfer material excellent in aesthetic appearance was obtained as a transfer product excellent in aesthetic appearance, without causing a transfer defect, without causing necking of the support, and showing no uneven pattern.
【0044】〔比較例1〕転写シートの支持体を、アイ
ソタクチックポリプロピレンを97重量%、アタクチッ
クポリプロピレンを3重量%、エルカ酸アミド1000
ppmの包装用グレードのポリプロピレン系のオレフィ
ン系熱可塑性エラストマーを用いた厚さ100μmのフ
ィルムとした他は、実施例1と同様にして転写シートを
得て、そして実施例1と同様にしてMDFからなる被転
写体に転写を行った。その結果、転写シートは被転写体
の凹凸表面に追従し、転写ヌケ不良を生じなかったが、
支持体のネッキングが発生し、絵柄の局所的に不均一に
歪んで、美観が損なわれた転写品となった。COMPARATIVE EXAMPLE 1 The transfer sheet support was composed of 97% by weight of isotactic polypropylene, 3% by weight of atactic polypropylene, and 1000 parts of erucamide.
A transfer sheet was obtained in the same manner as in Example 1 except that a film having a thickness of 100 μm using a olefin-based thermoplastic elastomer of polypropylene-based packaging grade polypropylene was obtained, and MDF was obtained in the same manner as in Example 1. Was transferred to a transfer receiving member. As a result, the transfer sheet followed the uneven surface of the transferred object, and no transfer dropping defect occurred.
The necking of the support occurred, and the pattern was locally unevenly distorted, resulting in a transfer product with an impaired aesthetic appearance.
【0045】〔比較例2〕転写シートの支持体を、アイ
ソタクチックポリプロピレンを35重量%、アタクチッ
クポリプロピレンを65重量%、エルカ酸アミド100
0ppmのポリプロピレン系のオレフィン系熱可塑性エ
ラストマーを用いた厚さ100μmのフィルムとした他
は、実施例1と同様の条件で輪転グラビア印刷を行って
転写層を印刷した。しかし、支持体のフィルム供給の張
力と、インキ乾燥ゾーン(温度40℃の温風)の加熱と
により、支持体のフィルムが伸びて見当が合わなくな
り、また印刷を続けるうちに、フィルムが破断し、転写
シートの良品が得られなかった。Comparative Example 2 The transfer sheet support was composed of 35% by weight of isotactic polypropylene, 65% by weight of atactic polypropylene, and 100 parts of erucamide.
The transfer layer was printed by rotogravure under the same conditions as in Example 1 except that a film having a thickness of 100 μm was formed using a 0 ppm polypropylene-based olefin-based thermoplastic elastomer. However, due to the tension of the film supply of the support and the heating of the ink drying zone (warm air at a temperature of 40 ° C.), the film of the support stretches and becomes out of register, and the film breaks while continuing printing. No good transfer sheet was obtained.
【0046】〔評価結果〕以上の実施例及び比較例の評
価結果を表1にまとめて示す。表1の如く、実施例で
は、加熱成形時のネッキング発生は無く且つグラビア印
刷適性も良好であり、被転写体の凹凸表面に綺麗に転写
されていた。しかし、比較例では、ネッキング発生や
(比較例1)グラビア印刷適性不良(比較例2)が発生
した。[Evaluation Results] The evaluation results of the above Examples and Comparative Examples are summarized in Table 1. As shown in Table 1, in Examples, necking did not occur at the time of heat molding, the suitability for gravure printing was good, and the transfer was clear on the uneven surface of the transfer-receiving body. However, in the comparative example, necking occurred and (Comparative Example 1) poor gravure printing suitability (Comparative Example 2) occurred.
【0047】[0047]
【表1】 [Table 1]
【0048】[0048]
【発明の効果】本発明によれば、特定組成のポリプロピ
レン系のオレフィン系熱可塑性エラストマーを転写シー
トの支持体として用いる為に、絵柄層等の転写層を構成
する樹脂として多種の樹脂との離型性に優れる上、適度
な剥離性が得られ、且つ三次元形状等の凹凸表面への転
写に必要な伸び適性(成形性)にも優れ、従来用いられ
てきた塩化ビニル樹脂と同様に凹凸表面への転写ができ
る。特に、オレフィン系熱可塑性エラストマーは基本的
に極性がなく、剥離層としても使用できる樹脂が従来の
塩化ビニル樹脂フィルムに比較して大幅に広がり、被転
写体に転写移行する剥離層に各種樹脂が使用できる結
果、得られる転写品に各種物性を付与できるようなっ
た。また、特定組成のポリプロピレン系のオレフィン系
熱可塑性エラストマーを用いている為に、結晶性も通常
のポリオレフィン樹脂に比べて低い為、転写成形時の支
持体のネッキング発生が無く、それによる絵柄のムラ、
歪み等を生じない。更に、温度変化に対する樹脂の流動
性、可塑性の変化が、より穏やかになる為、成形時の温
度条件の変動の影響を受けにくく、加工条件が広がる。
また、転写シートの廃材となる支持体はオレフィン系樹
脂なので、焼却しても塩化水素ガスが発生せず、地球環
境対策的にも好ましい。According to the present invention, since a polypropylene-based olefin-based thermoplastic elastomer having a specific composition is used as a support of a transfer sheet, it can be separated from various resins as a resin constituting a transfer layer such as a picture layer. In addition to excellent moldability, it has an adequate release property, and also has excellent stretchability (moldability) required for transfer to three-dimensional shapes and other irregular surfaces. Transfer to the surface is possible. In particular, olefin-based thermoplastic elastomers have basically no polarity, and the resin that can be used as a release layer spreads significantly compared to conventional vinyl chloride resin films. As a result, various physical properties can be imparted to the obtained transfer product. In addition, since a polypropylene-based olefin-based thermoplastic elastomer of a specific composition is used, the crystallinity is lower than that of a normal polyolefin resin, so that necking of the support does not occur at the time of transfer molding. ,
No distortion or the like occurs. Furthermore, since the change in fluidity and plasticity of the resin with respect to the temperature change becomes more gentle, the resin is less susceptible to fluctuations in temperature conditions during molding, and the processing conditions are widened.
Further, since the support, which is a waste material of the transfer sheet, is an olefin-based resin, no hydrogen chloride gas is generated even when incinerated, which is preferable in terms of global environmental measures.
【図1】本発明の転写シートの形態例を示す断面図。FIG. 1 is a cross-sectional view showing an embodiment of a transfer sheet according to the present invention.
【図2】本発明の転写方法の一形態として、真空プレス
転写法の説明図。FIG. 2 is an explanatory view of a vacuum press transfer method as one mode of the transfer method of the present invention.
【図3】本発明の転写方法の一形態として、射出成形同
時絵付け転写法の説明図。FIG. 3 is an illustration of an injection molding simultaneous painting transfer method as one embodiment of the transfer method of the present invention.
【図4】本発明の転写方法の一形態として、弾性体ロー
ラ転写法の説明図。FIG. 4 is an explanatory diagram of an elastic roller transfer method as one embodiment of the transfer method of the present invention.
【図5】本発明の転写方法の一形態として、固体粒子衝
突圧による転写方法の説明図。FIG. 5 is an explanatory diagram of a transfer method using solid particle collision pressure as one mode of the transfer method of the present invention.
【図6】羽根車を用いた噴出器の一例を概念的に説明す
る斜視図。FIG. 6 is a perspective view conceptually illustrating an example of an ejector using an impeller.
【図7】図6の羽根車内部を説明する概念図。FIG. 7 is a conceptual diagram illustrating the inside of the impeller of FIG. 6;
【図8】吹出ノズルによる噴出器の一例を概念的に説明
する断面図。FIG. 8 is a cross-sectional view conceptually illustrating an example of an ejector using an ejection nozzle.
【図9】被転写体の一例として、キッチン扉用のMDF
部材を説明する斜視図。FIG. 9 shows an example of an MDF for a kitchen door as an example of an object to be transferred.
The perspective view explaining a member.
【図10】被転写体の一例として、煉瓦積模様等の三次
元表面凹凸を有する例を示す説明図であり、(A)は平
面図、(B)は要部斜視図。FIGS. 10A and 10B are explanatory views showing an example of a transfer object having three-dimensional surface irregularities such as a brickwork pattern, in which FIG. 10A is a plan view and FIG.
1 支持体 2 転写層 3 剥離層 4 絵柄層 5 接着剤層 11 上室 12 ヒータ 13 上下動作手段 14、24 給排気ポート 15 ゴム状弾性膜 21 下室 22 置台 23 排気孔 30 真空プレス装置 71 ダイプレート(可動盤) 72 ダイプレート(固定盤) 73 ノズル 74 油圧シリンダー 81 雌型 82 雄型 83 流動樹脂 401 溝状凹部 402 平坦凸部 403 微細凹凸 812 羽根車 813 羽根 814 側面板 815 中空部 816 方向制御器 817 開口部 818 散布器 819 回転軸 820 軸受 840 吹出ノズルを用いた噴出器 841 誘導室 842 内部ノズル 843 ノズル開口部 844 ノズル A 接着剤層 B 被転写体 D 転写品 P 固体粒子 S 転写シート REFERENCE SIGNS LIST 1 support 2 transfer layer 3 release layer 4 picture layer 5 adhesive layer 11 upper chamber 12 heater 13 vertical operation means 14, 24 supply / exhaust port 15 rubber-like elastic film 21 lower chamber 22 table 23 exhaust hole 30 vacuum press device 71 die Plate (movable plate) 72 Die plate (fixed plate) 73 Nozzle 74 Hydraulic cylinder 81 Female type 82 Male type 83 Fluid resin 401 Groove-shaped concave portion 402 Flat convex portion 403 Fine irregularities 812 Impeller 813 Blade 814 Side plate 815 Hollow portion 816 Direction Controller 817 Opening 818 Sprayer 819 Rotating shaft 820 Bearing 840 Jetting device using blowout nozzle 841 Induction chamber 842 Internal nozzle 843 Nozzle opening 844 Nozzle A Adhesive layer B Transfer object D Transfer product P Solid particle S Transfer sheet
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平10−250213(JP,A) 特開 平10−297184(JP,A) 特開 平9−226297(JP,A) 特開 平4−168098(JP,A) 特開 平3−216377(JP,A) 特開 昭63−168399(JP,A) 特公 平6−23278(JP,B2) (58)調査した分野(Int.Cl.7,DB名) B44C 1/165 - 1/17 ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-10-250213 (JP, A) JP-A-10-297184 (JP, A) JP-A-9-226297 (JP, A) JP-A-4- 168098 (JP, A) JP-A-3-216377 (JP, A) JP-A-63-168399 (JP, A) JP-B-6-23278 (JP, B2) (58) Fields investigated (Int. 7 , DB name) B44C 1/165-1/17
Claims (6)
ルムを支持体として、該支持体上に少なくとも絵柄層を
転写層として有する転写シートであって、 該オレフィン系熱可塑性エラストマーが、アイソタクチ
ックポリプロピレンとアタクチックポリプロピレンとか
らなり、且つアイソタクチックポリプロピレンの重量比
が50重量%を超え95重量%未満で、アタクチックポ
リプロピレンの重量比が5重量%以上50重量%以下で
ある、転写シート。1. A transfer sheet having an olefin-based thermoplastic elastomer film as a support and at least a picture layer as a transfer layer on the support, wherein the olefin-based thermoplastic elastomer is composed of isotactic polypropylene and atactic. A transfer sheet comprising polypropylene, wherein the weight ratio of isotactic polypropylene is more than 50% by weight and less than 95% by weight, and the weight ratio of atactic polypropylene is 5% by weight or more and 50% by weight or less.
写層を被転写体に転写する転写方法。2. A transfer method using the transfer sheet according to claim 1 to transfer a transfer layer to a transfer target.
側に向けて配置し、被転写体側から真空吸引を行い、支
持体側と被転写体側との気圧差によって加圧し、転写層
を被転写体に転写する請求項2記載の転写方法。3. A transfer sheet is placed with its transfer layer side facing the transfer object side, vacuum suction is performed from the transfer object side, and pressure is applied by the pressure difference between the support side and the transfer object side to cover the transfer layer. 3. The transfer method according to claim 2, wherein the transfer is performed on a transfer body.
側に対向させて、支持体側から固体粒子を衝突させ、そ
の衝突圧によって転写層を被転写体に転写する請求項2
記載の転写方法。4. The transfer sheet, wherein the transfer layer side faces the transfer object side, solid particles collide from the support side, and the transfer layer is transferred to the transfer object by the collision pressure.
The transfer method as described above.
の間に転写シートを、その転写層側が射出樹脂側を向く
様にして挿入し、しかる後、両型を型締めし、両型で形
成されるキャビティに流動状態の樹脂を射出充填し、該
射出樹脂を固体化させて被転写体とするとともに前記転
写層を該射出樹脂と接着させた後、両型を型開きして成
形品を取り出し、成形品取出しと同時又は成形品取出し
後に転写シートの支持体を剥離除去することで、転写層
を被転写体である成形品に転写する請求項2記載の転写
方法。5. A transfer sheet is inserted between two injection molding dies including a male die and a female die such that the transfer layer side faces the injection resin side, and then the two dies are clamped. After injecting and filling a resin in a flow state into a cavity formed by both molds, solidifying the injected resin to form a transfer receiving body and bonding the transfer layer with the injected resin, the molds are opened. 3. The transfer method according to claim 2, wherein the transfer layer is transferred to a molded article, which is an object to be transferred, by removing the molded article and removing the support of the transfer sheet simultaneously with or after removing the molded article.
側に向けて、支持体側から弾性体ローラで加圧し、転写
層を被転写体に転写する請求項2記載の転写方法。6. The transfer method according to claim 2, wherein the transfer sheet is transferred to the transfer object by pressing the transfer sheet with an elastic roller from the support side with the transfer layer side facing the transfer object side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09215463A JP3099115B2 (en) | 1997-07-28 | 1997-07-28 | Transfer sheet and transfer method using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09215463A JP3099115B2 (en) | 1997-07-28 | 1997-07-28 | Transfer sheet and transfer method using the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1142749A JPH1142749A (en) | 1999-02-16 |
JP3099115B2 true JP3099115B2 (en) | 2000-10-16 |
Family
ID=16672799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP09215463A Expired - Fee Related JP3099115B2 (en) | 1997-07-28 | 1997-07-28 | Transfer sheet and transfer method using the same |
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JP (1) | JP3099115B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06299651A (en) * | 1993-04-15 | 1994-10-25 | Aaru Pii Toupura Kk | Wall panel |
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DE102004041867A1 (en) * | 2004-08-27 | 2006-03-16 | Leonhard Kurz Gmbh & Co. Kg | Decorated injection molded article, as well as transfer film and method for producing such |
US20080102239A1 (en) | 2005-07-28 | 2008-05-01 | High Voltage Graphics, Inc. | End of roll paper sensing and system management |
JP4765567B2 (en) * | 2005-11-15 | 2011-09-07 | 東レ株式会社 | Laminated film for transfer foil and transfer foil using the same |
JP4899179B2 (en) * | 2005-12-19 | 2012-03-21 | 高知県 | Transfer method to transfer the pattern to the steering wheel |
JP5015486B2 (en) * | 2006-04-11 | 2012-08-29 | 株式会社東海理化電機製作所 | Transfer method for transferring a pattern to a transfer object and transfer sheet used in this method |
JP5015487B2 (en) * | 2006-04-11 | 2012-08-29 | 株式会社東海理化電機製作所 | Transfer method for transferring a pattern to a transfer object and transfer sheet used in this method |
US9175436B2 (en) | 2010-03-12 | 2015-11-03 | High Voltage Graphics, Inc. | Flocked articles having a resistance to splitting and methods for making the same |
EP2582865A1 (en) | 2010-06-18 | 2013-04-24 | High Voltage Graphics, INC. | Dimensional, patterned heat applied applique or transfer made from knit textile |
JP5667526B2 (en) * | 2011-06-22 | 2015-02-12 | 東洋機械金属株式会社 | Method of performing in-mold molding of complex shape, transfer sheet used for in-mold molding, and resin molded product formed by the method |
CN104837645A (en) | 2012-10-12 | 2015-08-12 | 高压制图公司 | Flexible heat sealable decorative articles and method for making same |
MX2017010590A (en) * | 2015-02-23 | 2017-11-16 | Nippon Paint Automotive Coatings Co Ltd | Laminate film for three-dimensional molded article decoration used for vacuum molding, method for producing same, and three-dimensional molded article decoration method. |
JP2020175555A (en) * | 2019-04-17 | 2020-10-29 | 天昇電気工業株式会社 | Resin-decorated article and convex decoration processing method on article surface |
-
1997
- 1997-07-28 JP JP09215463A patent/JP3099115B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06299651A (en) * | 1993-04-15 | 1994-10-25 | Aaru Pii Toupura Kk | Wall panel |
Also Published As
Publication number | Publication date |
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JPH1142749A (en) | 1999-02-16 |
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