JPS6351875B2 - - Google Patents
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- Publication number
- JPS6351875B2 JPS6351875B2 JP55069531A JP6953180A JPS6351875B2 JP S6351875 B2 JPS6351875 B2 JP S6351875B2 JP 55069531 A JP55069531 A JP 55069531A JP 6953180 A JP6953180 A JP 6953180A JP S6351875 B2 JPS6351875 B2 JP S6351875B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- stamping foil
- film
- particle size
- gloss
- 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
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- 239000011888 foil Substances 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 22
- 239000011241 protective layer Substances 0.000 claims description 17
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- 239000012790 adhesive layer Substances 0.000 claims description 13
- 229920006267 polyester film Polymers 0.000 claims description 10
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
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- -1 polyethylene terephthalate Polymers 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
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- 229920005989 resin Polymers 0.000 description 3
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- 238000004062 sedimentation Methods 0.000 description 3
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- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 229920001220 nitrocellulos Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N terephthalic acid group Chemical group C(C1=CC=C(C(=O)O)C=C1)(=O)O KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920001727 cellulose butyrate Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229940071125 manganese acetate Drugs 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Duplication Or Marking (AREA)
- Laminated Bodies (AREA)
Description
本発明はスタンピングホイルに関する。更に詳
しくは、本発明は光沢及び加工性の優れたスタン
ピングホイルを提供しようとするものである。
スタンピングホイルは、プラスチツク成形品、
レザー類、木製品、紙製品或はその他の対象物
に、金属色の模様あるいは文字などをスタンプし
て、製品の外観を豪華ならしめ、その商品価値を
高めるのに用いられる。
スタンピングホイルは、通常、第1図に示す如
く、基材フイルム1に剥離層2、保護層3、光反
射層4、及び接着剤層5を積層したものである。
そして、スタンピングホイルの接着剤層面を、第
2図に示すように、印刷すべき物品8に重ね、基
材フイルム側から加熱した型7で押圧すると、型
の部分の接着剤が溶融して接着し、型とスタンピ
ングホイルを物品から引離すと、型に押された部
分のみが基材フイルムと剥離して物品に押箔され
印刷される。印刷の装飾効果、美的効果等の観点
から、その光沢が優れていることが望まれ、その
ためには光反射層ができるだけ平滑であることが
望ましい。光反射層は基材フイルム面上に剥離層
や保護層を塗布した上に設けられるが、これらの
層は薄くて塗布表面に基材フイルムの表面粗さが
ほぼそのままに現われるので、光反射層を平滑に
するには、基材フイルムの表面を平滑にする必要
がある。
ところが基材フイルムの表面を平滑にするとフ
イルムの滑り性が悪化し、スタンピングホイルに
加工する工程でのフイルムの巻姿が著しく悪化す
る。第3図に模式的に示した巻き上げフイルムロ
ールの外観の如く、滑り性の悪いフイルムの巻上
げロールには瘤状の突起が生じ、その部分の塗布
層が傷ついたり剥れたりして、スタンピングホイ
ルに欠陥を生ずることになる。
従つて、加工性の点から、或る程度粗面化され
た基材フイルムを使用し、光沢を犠性にしたスタ
ンピングホイルが製造されてきた。
本発明者は、光沢と加工性とが共に優れたスタ
ンピングホイルを得るべく鋭意研究の結果、特定
平均粒径範囲の特定量の不活性物質を含有する配
向ポリエステルフイルムを基材フイルムとして用
いるならば、光沢を損なうことなく、優れた加工
性を付与できることを見出し、本発明に到達し
た。
すなわち、本発明は、平均粒径が1.0〜4.0μの
不活性物質を0.01〜0.15重量%含有してなる配向
ポリエステルフイルムの片面に剥離層を設け、更
にその外側に光反射層、接着剤層等からは被覆層
を設けることを特徴とするスタンピングホイルで
ある。
本発明の被覆層は、保護層、着色層、光反射
層、接着剤層を含むものであつて、光反射層及び
接着剤層は必須の構成層となる。
本発明に用いるポリエステルはポリエチレンテ
レフタレート、或いはポリエチレンナフタレンジ
カルボキシレートである。これらは共重合されな
いポリマーであつても、ジカルボン酸成分の90モ
ル%以上(好ましくは95モル%以上)がテレフタ
ル酸分またはナフタレンジカルボン酸分であり、
グリコール成分の90モル%以上(好ましくは95モ
ル%以上)がエチレングリコール分であるような
共重合ポリマーであつてもよい。また、前記ポリ
エステルが90重量%以上(好ましくは95重量%以
上)を占め他のポリマー(例えばポリアミド、ポ
リオレフイン、ポリカーボネート、他種ポリエス
テル等)が10重量%以下(好ましくは5重量%以
下)であるようなポリマーブレンドも用いられ
る。
本発明で用いるポリエステルには、必要に応じ
て安定剤、着色層、酸化防止剤、滑剤、艶消剤、
その他添加剤を含有せしめてもよい。
本発明で用いる配向ポリエステルフイルムは、
平均粒径が1.0〜4.0μの不活性物質を0.01〜0.15重
量%含有することが必要である。
平均粒径が1μより小さいものを用いると、加
工性を良好ならしめるためには、フイルム中に該
不活性物質は0.15%より多く含有させる必要があ
り、この場合はフイルム自体の透明性が悪くなり
スタンピングホイル自体の光沢が悪くなるので好
ましくない。一方、平均粒径が4.0μ以上では、フ
イルム面及び(又は)フイルム面の上に設けた光
反射層に凹凸が目立つて印刷物の光沢が悪くなる
ので好ましくない。
かかる観点からは、不活性物質の平均粒径は
1.5μ以上3.0μ以下が好ましく、更に0.18μ以上2.5μ
以下がより好ましい。
また不活性物質の含有量は、スタンピングホイ
ルの光沢と加工性の面から0.025重量%以上0.10
重量%までが好ましい。
本発明で用いる配向ポリエステルフイルムはそ
の表面の表面粗さが、中心線平均粗さであらわし
て0.010〜0.030μである場合、特に0.015μ〜0.028μ
の範囲にある場合が好ましい。
不活性物質としては、シリカ、クレイ、カオリ
ン或は炭酸カルシウム等が挙げられる。ここに、
シリカは結晶状でも非晶状でもよい。
不活性物質は、添加剤の粉砕および混合操作を
含むこの分野に精通した人々により行うことので
きる種々の方法で得ることができる。
例えば、炭酸カルシウム、シリカ等は、エチレ
ングリコールのスラリーとして、分級装置(例え
ば巴工業社製p−660スーパーデカンター)等を
用いて分級すると得られる。
なお本発明にいう粒径はストークス(Stokes)
径を採用し(後述)、平均粒径は、粒径(Stokes
径)構成比を求め、積算曲線を作製し、積算率50
%で示す粒径とする。
得られた不活性物質はポリエステルに添加す
る。添加時期は、ポリエステル重合前でもよく、
重合反応中でもよく、また重合終了後ペレタイズ
する時に押出機中で混練させてもよく、さらにシ
ート状に溶融押出しする際に添加し、押出機中で
分散して押出してもよいが、重合前に添加するの
が好ましい。
本発明の対象とするポリエステルフイルムは二
軸配向フイルムである。該フイルムは二軸方向
(例えば縦及び横方向)に、それぞれ延伸温度
(70〜120℃)で、延伸倍率(3〜5倍)、面積倍
率(8〜22倍)で延伸し、(200〜245℃)で(1
〜30秒)熱固定すると得られる。
二軸方向の延伸倍率は相等しくても、等しくな
くてもよく、縦延伸−横延伸によるもの、二軸配
向フイルムに再縦延伸または再横延伸を加えたも
の、更に縦横4段延伸などによつて得られたもの
も含む。
フイルム厚さは3〜100μ、好ましくは4〜50μ
のものがよく用いられ、特に8〜25μのものが最
も好ましく用いられる。
本発明では、前記のような不活性物質を含有し
てなる配向ポリエステルフイルムの片面に、フイ
ルム面に接して剥離層を、またその外側(上側)
に光反射層を、更にその外側に接着剤層を設けて
スタンピングホイルにする。ここにいう外側と
は、これらの各層から見て、フイルム基材側と反
対の側を言う。
本発明のスタンピングホイルでは、必要に応じ
て剥離層と光反射層との間に、保護層、または保
護層と着色層とを設けることもできる。保護層と
着色層とを設ける場合には後者を外側にするのが
よい。
剥離層は印刷の際、保護層、光反射層、接着剤
層等が基材フイルムから容易に剥離するために設
けるもので、公知の任意の剥離層用材料を用いた
ものでよく、例えばワツクス、合成乾性油、繊維
素誘導体樹脂(例えば硝酸繊維素セルロースアセ
テート・ブチレート等)を溶剤に溶かして塗布し
溶剤を蒸発することにより形成せしめることがで
きる。
保護層は印刷する物品に転与された光反射層が
外からの摩擦等により傷つくのを防ぐため、光反
射層を被覆するもので公知の任意の保護層用材料
を用いたものでよく、例えば繊維素誘導体樹脂
(例えば硝酸繊維素、セルロースブチレート、セ
ルロースアセテート、セルロースアセテートブチ
レート等)を溶剤に溶かして塗布し溶剤を蒸発す
ることにより形成せしめることができる。アクリ
ル系、エポキシ系等の熱硬化性樹脂を添加する
と、保護層の耐摩耗性を向上することができる。
保護層に用い得る材料が剥離層用材料として用い
られた場合は、剥離層に保護層の役割を兼ねさせ
ることができることは言うまでもない。
着色層は印刷物の着色のために設けられ、染
料、顔料等をバインダー中に分散または溶解せし
めて形成される層で、バインダーとして保護層に
用い得る高分子を用いることが多い。
光反射層は金属の蒸着層であることが多いが金
属酸化物の蒸着層、化学メツキ等により形成され
る反射層でもよい。
接着剤層は印刷の際型で押された部分のみが印
刷される物品に接着するように設けられたもの
で、感熱性接着剤であれば任意のものの層でよ
く、例えば酢酸ビニル系、塩化ビニル系、アクリ
ル系等の接着剤が用いられることが多い。
本発明のスタンピングホイルは、基材フイルム
として前記のような不活性物質を含有する配向ポ
リエステルフイルムを用いるので、加工性が優
れ、しかも印刷物の光沢も優れるという特徴があ
る。
次に本発明に採用する主な物質の測定法を示
す。
1 不活性物質の粒径および構成
島津自動沈降天秤を用いてストークス
(Stokes)の式
T=18ηh/G(ρp−ρo)×d2
但し、式中
T:沈降時間(sec)
η:媒質の粘度(g/cm・sec=poise)
h:沈降距離(cm)
G:重力の加速度(980cm/sec2)
ρp:不活性物質の密度(g/cm3)
ρo:媒質の密度(g/cm3)
d:不活性物質の粒径(直径・cm)
を用いて夫々の粒径に相当する沈降時間を算出
し、夫々の粒径の範囲に相当する沈降時間範囲
を求め、その沈降時間範囲内での不活性物質の
重量を求めて全不活性物質重量に対する割合を
%で表わし構成比とする。
2 平均粒径
測定法1に記載の方法で構成比を求め、粒径
の大きい方から小さい方に順に積算(粒径0μ
mで100%)した積算曲線を作成し、積算率50
%で示す粒径を平均粒径(μm)とする。
3 中心 平均粗さ:
JIS B−6601に規定する方法により、カツト
オフ長は0.25mm、測定触針は半径3μのものとす
る。以下の実施例及び比較例においては、株式
会社東京精密製の表面粗さ計サーフコム3B型
を使用した。
4 巻姿:
1級〜5級に格付する。幅500mm、長さ2000
mのフイルムに剥離層及び保護層を設けた後、
ロールに捲き上げた。この捲き上げロールの外
観を詳細に検査し、第3図に模式的に示すよう
な瘤状の突起で長径1mm以上のものの個数を数
え、次のように格付した。
0個 1級
1〜2個 2級
3〜5個 3級
6〜10個 4級(不合格)
11個以上 5級(不合格)
5 光沢:
村上色彩技術研究所製の光沢計GM−3Mを
使用してスタンピングホイルにより印刷された
面の光沢を測定した。スタンピングホイルで印
刷した面の光沢は非常に高いので、黒ガラス標
準板(屈折率1.5275)の鏡面反射率を10.0に設
定し、これと比較した値で光沢を表示した。な
お入射角及び反射角は60度である。
以下、具体例により本発明を更に説明する。
実施例1〜8及び比較例1〜4
ジメチルテレフタレートとエチレングリコール
を原料として、酢酸マンガンをエステル交換触
媒、三酸化アンチモンを重合触媒、亜リン酸を安
定剤として用い、常法によりポリエチレンテレフ
タレートを製造した。
その際、エチレングリコール中に、不活性物質
として、シリカまたは炭酸カルシウム等を分散さ
せておくことにより、ポリマー中に所定量含有せ
しめた(表−1参照)。
得られたポリマーを常法により溶融押出して製
膜し、延伸温度90〜120℃、縦倍率3.5倍、横倍率
3.7倍で二軸延伸し、220℃で熱固定して膜厚12μ
の二軸配向フイルムを得た。
このフイルムの片面に剥離層と保護層とを、兼
ねるものとしてセルロースアセテートブチレート
を厚さ5μに塗布し、ロールに巻き上げて巻姿の
判定に供した。次いで該フイルムの剥離層の上に
光反射層としてアルミニウムを約300Åの厚さに
蒸着し、更にその上に接着剤層として酢酸ビニル
系の感熱接着剤を塗布し、スタンピングホイルと
し、ABS成形板の印刷に供した。得られた結果
を表1に示す。
なお、前記巻上げロールにおいて瘤状突起のあ
つた部分は、スタンピングホイルにあつては正常
に印刷できない欠陥部となつていることが判つ
た。
The present invention relates to stamping foils. More specifically, the present invention aims to provide a stamping foil with excellent gloss and processability. Stamping foil is a plastic molded product,
It is used to stamp metal-colored patterns or letters on leather, wood products, paper products, or other objects to make the product look luxurious and increase its commercial value. As shown in FIG. 1, stamping foil is usually made by laminating a release layer 2, a protective layer 3, a light reflective layer 4, and an adhesive layer 5 on a base film 1.
Then, as shown in Fig. 2, the adhesive layer side of the stamping foil is placed on the article 8 to be printed and pressed from the base film side with a heated mold 7, so that the adhesive on the mold part melts and bonds. However, when the mold and stamping foil are separated from the article, only the portion stamped by the mold is separated from the base film and stamped and printed on the article. From the viewpoint of printing decorative effects, aesthetic effects, etc., it is desired that the gloss is excellent, and for this purpose, it is desirable that the light reflecting layer be as smooth as possible. The light-reflecting layer is provided after coating a release layer and a protective layer on the surface of the base film, but these layers are thin and the surface roughness of the base film appears on the coated surface almost as is, so the light-reflecting layer is In order to make the surface smooth, it is necessary to smooth the surface of the base film. However, when the surface of the base film is made smooth, the slipperiness of the film deteriorates, and the winding appearance of the film during the process of processing into stamping foil deteriorates significantly. As shown in the appearance of the winding film roll schematically shown in Figure 3, bump-like protrusions occur on the winding roll of film with poor slipperiness, and the coating layer in those areas is damaged or peeled off, resulting in the stamping foil being damaged. This will result in defects. Therefore, from the viewpoint of processability, stamping foils have been manufactured using base films whose surfaces have been roughened to some extent, sacrificing gloss. As a result of intensive research in order to obtain a stamping foil with excellent gloss and workability, the present inventor found that if an oriented polyester film containing a specific amount of inert material with a specific average particle size range is used as a base film. It was discovered that excellent workability can be imparted without impairing gloss, and the present invention was achieved. That is, the present invention provides a release layer on one side of an oriented polyester film containing 0.01 to 0.15% by weight of an inert substance with an average particle size of 1.0 to 4.0μ, and further includes a light reflecting layer and an adhesive layer on the outside thereof. This is a stamping foil characterized by being provided with a covering layer. The coating layer of the present invention includes a protective layer, a colored layer, a light-reflecting layer, and an adhesive layer, and the light-reflecting layer and the adhesive layer are essential constituent layers. The polyester used in the present invention is polyethylene terephthalate or polyethylene naphthalene dicarboxylate. Even if these are non-copolymerized polymers, 90 mol% or more (preferably 95 mol% or more) of the dicarboxylic acid component is terephthalic acid or naphthalene dicarboxylic acid,
It may be a copolymer in which 90 mol% or more (preferably 95 mol% or more) of the glycol component is ethylene glycol. Further, the polyester accounts for 90% by weight or more (preferably 95% by weight or more) and other polymers (for example, polyamide, polyolefin, polycarbonate, other types of polyester, etc.) account for 10% by weight or less (preferably 5% by weight or less). Polymer blends such as these may also be used. The polyester used in the present invention may contain stabilizers, colored layers, antioxidants, lubricants, matting agents,
Other additives may also be included. The oriented polyester film used in the present invention is
It is necessary to contain 0.01 to 0.15% by weight of inert substances with an average particle size of 1.0 to 4.0 μm. When using particles with an average particle size smaller than 1μ, it is necessary to contain more than 0.15% of the inert substance in the film in order to obtain good processability, and in this case, the transparency of the film itself becomes poor. This is not preferable because the gloss of the stamping foil itself deteriorates. On the other hand, if the average particle size is 4.0 μm or more, unevenness will become noticeable on the film surface and/or the light reflecting layer provided on the film surface, and the gloss of the printed matter will deteriorate, which is not preferable. From this point of view, the average particle size of the inert substance is
1.5μ or more and 3.0μ or less, preferably 0.18μ or more and 2.5μ
The following are more preferred. In addition, the content of inert substances should be 0.025% by weight or more and 0.10% by weight in order to improve the gloss and processability of the stamping foil.
Up to % by weight is preferred. The oriented polyester film used in the present invention has a surface roughness of 0.010 to 0.030μ expressed as center line average roughness, especially 0.015μ to 0.028μ.
It is preferable that it is within the range of . Examples of inert substances include silica, clay, kaolin, and calcium carbonate. Here,
Silica may be crystalline or amorphous. The inert material can be obtained in a variety of ways that can be performed by those skilled in the art, including milling and mixing operations of the additives. For example, calcium carbonate, silica, etc. can be obtained by classifying a slurry of ethylene glycol using a classifier (eg, Tomoe Kogyo P-660 Super Decanter) or the like. Note that the particle size referred to in the present invention is Stokes.
(described later), and the average particle size is determined by the particle size (Stokes
diameter), calculate the composition ratio, create an integration curve, and calculate the integration rate of 50.
Particle size expressed in %. The resulting inert material is added to the polyester. The addition time may be before polyester polymerization,
It may be added during the polymerization reaction, or it may be kneaded in an extruder when pelletizing after the completion of polymerization, or it may be added during melt extrusion into a sheet, dispersed in an extruder, and extruded, but it may be added before polymerization. It is preferable to add The polyester film that is the object of the present invention is a biaxially oriented film. The film is stretched in biaxial directions (for example, vertical and horizontal directions) at a stretching temperature (70 to 120°C), a stretching ratio (3 to 5 times), and an area ratio (8 to 22 times). 245℃) at (1
~30 seconds) obtained by heat fixing. The stretching ratios in the biaxial directions may or may not be the same, and may be obtained by longitudinal stretching and transverse stretching, by adding longitudinal re-stretching or re-transverse stretching to a biaxially oriented film, or by four-stage stretching in the longitudinal and lateral directions. It also includes those obtained by Film thickness is 3-100μ, preferably 4-50μ
Those having a diameter of 8 to 25 μm are most preferably used. In the present invention, a release layer is provided on one side of the oriented polyester film containing an inert substance as described above in contact with the film surface, and a release layer is provided on the outside (upper side) of the oriented polyester film.
A light-reflecting layer is provided on the surface of the stamping foil, and an adhesive layer is provided on the outer side of the light-reflecting layer to form a stamping foil. The outside here refers to the side opposite to the film base material side when viewed from each of these layers. In the stamping foil of the present invention, a protective layer or a protective layer and a colored layer can be provided between the release layer and the light-reflecting layer, if necessary. When providing a protective layer and a colored layer, it is preferable to place the latter on the outside. The release layer is provided so that the protective layer, light reflection layer, adhesive layer, etc. can be easily peeled off from the base film during printing, and any known release layer material may be used, such as wax. It can be formed by dissolving a synthetic drying oil, a cellulose derivative resin (for example, cellulose nitrate, cellulose acetate, butyrate, etc.) in a solvent, applying the solution, and then evaporating the solvent. The protective layer covers the light reflective layer to prevent the light reflective layer transferred to the article to be printed from being damaged by external friction, etc., and may be made of any known protective layer material. For example, it can be formed by dissolving a cellulose derivative resin (for example, cellulose nitrate, cellulose butyrate, cellulose acetate, cellulose acetate butyrate, etc.) in a solvent, applying the solution, and then evaporating the solvent. Addition of a thermosetting resin such as acrylic or epoxy resin can improve the abrasion resistance of the protective layer.
It goes without saying that when a material that can be used for the protective layer is used as a material for the release layer, the release layer can also serve as the protective layer. The colored layer is provided for coloring printed matter and is formed by dispersing or dissolving dyes, pigments, etc. in a binder, and often uses a polymer that can be used in the protective layer as the binder. The light reflective layer is often a vapor deposited layer of metal, but may also be a vapor deposited layer of metal oxide, a reflective layer formed by chemical plating, or the like. The adhesive layer is provided so that only the part pressed by the mold adheres to the printed article during printing, and may be any heat-sensitive adhesive layer, such as vinyl acetate, chloride, etc. Vinyl-based, acrylic-based, etc. adhesives are often used. Since the stamping foil of the present invention uses an oriented polyester film containing the above-mentioned inert substance as a base film, it is characterized by excellent processability and excellent gloss of printed matter. Next, methods for measuring the main substances employed in the present invention will be described. 1 Particle size and composition of the inert substance Using the Shimadzu automatic sedimentation balance, use the Stokes equation T = 18ηh/G (ρp - ρo) × d 2 In the formula, T: sedimentation time (sec) η: medium Viscosity (g/cm・sec=poise) h: Sedimentation distance (cm) G: Acceleration of gravity (980cm/sec 2 ) ρp: Density of inert substance (g/cm 3 ) ρo: Density of medium (g/cm 3 ) d: Calculate the settling time corresponding to each particle size using the particle size (diameter/cm) of the inert substance, find the settling time range corresponding to each particle size range, and calculate the settling time range. The weight of the inert material in the total weight of the inert material is determined, and the proportion to the total weight of the inert material is expressed as a percentage and used as the composition ratio. 2 Average particle size Determine the composition ratio using the method described in measurement method 1, and integrate from the larger particle size to the smaller particle size (particle size 0 μ
Create an integration curve (100% in m) and set the integration rate to 50
The particle size expressed in % is defined as the average particle size (μm). 3 Center average roughness: According to the method specified in JIS B-6601, the cut-off length is 0.25 mm and the measuring stylus has a radius of 3 μ. In the following Examples and Comparative Examples, a surface roughness meter Surfcom Model 3B manufactured by Tokyo Seimitsu Co., Ltd. was used. 4 Volume appearance: Graded from 1st grade to 5th grade. Width 500mm, length 2000
After providing a release layer and a protective layer on the film of m,
Rolled up into a roll. The appearance of this winding roll was inspected in detail, and the number of lump-like protrusions with a major diameter of 1 mm or more as schematically shown in FIG. 3 was counted and graded as follows. 0 pieces 1st grade 1-2 pieces 2nd grade 3-5 pieces 3rd grade 6-10 pieces 4th grade (fail) 11 or more pieces 5th grade (fail) 5 Gloss: Gloss meter GM-3M manufactured by Murakami Color Research Institute was used to measure the gloss of the surface printed by the stamping foil. Since the surface printed with stamping foil has a very high gloss, the specular reflectance of a black glass standard plate (refractive index 1.5275) was set to 10.0, and the gloss was compared with this value to display the gloss. Note that the incident angle and reflection angle are 60 degrees. The present invention will be further explained below using specific examples. Examples 1 to 8 and Comparative Examples 1 to 4 Polyethylene terephthalate was produced by a conventional method using dimethyl terephthalate and ethylene glycol as raw materials, manganese acetate as a transesterification catalyst, antimony trioxide as a polymerization catalyst, and phosphorous acid as a stabilizer. did. At that time, by dispersing silica or calcium carbonate as an inert substance in ethylene glycol, a predetermined amount of the inert substance was contained in the polymer (see Table 1). The obtained polymer was melt-extruded using a conventional method to form a film, and the stretching temperature was 90 to 120°C, longitudinal magnification was 3.5 times, and transverse magnification was 3.5 times.
Biaxially stretched at 3.7 times and heat set at 220℃ to a film thickness of 12μ
A biaxially oriented film was obtained. Cellulose acetate butyrate was coated on one side of the film to a thickness of 5 μm to serve as both a release layer and a protective layer, and the film was wound up into a roll to determine the roll shape. Next, on the release layer of the film, aluminum was vapor-deposited to a thickness of about 300 Å as a light-reflecting layer, and then a vinyl acetate-based heat-sensitive adhesive was applied as an adhesive layer on top of this, used as a stamping foil, and an ABS molded plate. It was used for printing. The results obtained are shown in Table 1. In addition, it was found that the part of the winding roll where the bump-like protrusion was formed was a defective part in which printing could not be performed normally in the case of stamping foil.
【表】
以上の結果から、実施例は、光沢、巻姿共にす
ぐれているのに対し、比較例は、光沢がよければ
巻姿が5級で著しく劣り、また巻姿のよいものは
光沢が著しく劣つていることが判る。
実施例9〜13及び比較例5〜7
不活性物質として表−2に示すものを用い、実
施例1で用いたポリエチレンテレフタレートの代
りに、同様の方法で製造したポリエチレン−2,
6−ナフタリンジカルボキシレートを用い、フイ
ルムの延伸温度を120〜140℃、熱固定温度を230
℃にする以外は、実施例1と同様にして二軸延伸
フイルム及びスタンピングホイルを製造した。
得られた結果を表2に示す。[Table] From the above results, the examples have excellent gloss and winding appearance, while the comparative examples have good gloss but extremely poor winding appearance with grade 5, and those with good winding appearance have poor gloss. It turns out that it is significantly inferior. Examples 9 to 13 and Comparative Examples 5 to 7 Using the inert substances shown in Table 2, polyethylene terephthalate used in Example 1 was replaced with polyethylene-2, which was produced in the same manner.
Using 6-naphthalene dicarboxylate, the film stretching temperature was 120 to 140℃ and the heat setting temperature was 230℃.
A biaxially stretched film and a stamping foil were produced in the same manner as in Example 1 except that the temperature was changed to .degree. The results obtained are shown in Table 2.
第1図はスタンピングホイルの基本的な構造を
示す断面図、第2図はスタンピングホイルを用い
た印刷を模式的に示す図、第3図は滑り性のよく
ないフイルムをロールに巻き上げた時に発生する
瘤状突起を模式的に示す斜視図である。
Figure 1 is a cross-sectional view showing the basic structure of stamping foil, Figure 2 is a schematic diagram showing printing using stamping foil, and Figure 3 is a problem that occurs when a film with poor slipperiness is rolled up. FIG.
Claims (1)
0.15重量%含有してなる配向ポリエステルフイル
ムの片面に剥離層が設けられ、該剥離層の外側に
被覆層が設けられてなるスタンピングホイル。 2 中心線平均あらさで表わされるフイルムの表
面粗さが0.010〜0.030μである配向ポリエステル
フイルムを使用することを特徴とする特許請求の
範囲第1項記載のスタンピングホイル。 3 被覆層が、保護層、光反射層及び接着剤層と
からなり、該接着剤層が最外層である特許請求の
範囲第1項又は第2項記載のスタンピングホイ
ル。 4 被覆層が保護層、着色層、光反射層及び接着
剤層の順に構成されてなる特許請求の範囲第1項
又は第2項記載のスタンピングホイル。[Claims] 1. An inert substance with an average particle size of 1.0 to 4.0μ
A stamping foil comprising a release layer provided on one side of an oriented polyester film containing 0.15% by weight, and a coating layer provided on the outside of the release layer. 2. The stamping foil according to claim 1, which uses an oriented polyester film having a surface roughness of 0.010 to 0.030μ as expressed by center line average roughness. 3. The stamping foil according to claim 1 or 2, wherein the coating layer comprises a protective layer, a light reflecting layer, and an adhesive layer, and the adhesive layer is the outermost layer. 4. The stamping foil according to claim 1 or 2, wherein the coating layer is comprised of a protective layer, a colored layer, a light reflective layer, and an adhesive layer in this order.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6953180A JPS56166059A (en) | 1980-05-27 | 1980-05-27 | Stamping-wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6953180A JPS56166059A (en) | 1980-05-27 | 1980-05-27 | Stamping-wheel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56166059A JPS56166059A (en) | 1981-12-19 |
JPS6351875B2 true JPS6351875B2 (en) | 1988-10-17 |
Family
ID=13405391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6953180A Granted JPS56166059A (en) | 1980-05-27 | 1980-05-27 | Stamping-wheel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56166059A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5772850A (en) * | 1980-10-27 | 1982-05-07 | Teijin Ltd | Stamping wheel |
KR100571810B1 (en) * | 2003-04-25 | 2006-04-17 | 삼성코닝 주식회사 | Filter shielding electron wave for plasma display panel and the fabrication method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50160385A (en) * | 1974-06-19 | 1975-12-25 | ||
JPS5214675A (en) * | 1975-07-18 | 1977-02-03 | Mitsubishi Chem Ind | Polyethylen terephthalate film |
JPS52125016A (en) * | 1976-04-08 | 1977-10-20 | Teijin Ltd | Stamping foil |
JPS611316A (en) * | 1984-06-13 | 1986-01-07 | 株式会社 新宮商行 | Grass reamer |
-
1980
- 1980-05-27 JP JP6953180A patent/JPS56166059A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50160385A (en) * | 1974-06-19 | 1975-12-25 | ||
JPS5214675A (en) * | 1975-07-18 | 1977-02-03 | Mitsubishi Chem Ind | Polyethylen terephthalate film |
JPS52125016A (en) * | 1976-04-08 | 1977-10-20 | Teijin Ltd | Stamping foil |
JPS611316A (en) * | 1984-06-13 | 1986-01-07 | 株式会社 新宮商行 | Grass reamer |
Also Published As
Publication number | Publication date |
---|---|
JPS56166059A (en) | 1981-12-19 |
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