JPH0712753B2 - Thermal transfer sheet - Google Patents
Thermal transfer sheetInfo
- Publication number
- JPH0712753B2 JPH0712753B2 JP60039935A JP3993585A JPH0712753B2 JP H0712753 B2 JPH0712753 B2 JP H0712753B2 JP 60039935 A JP60039935 A JP 60039935A JP 3993585 A JP3993585 A JP 3993585A JP H0712753 B2 JPH0712753 B2 JP H0712753B2
- Authority
- JP
- Japan
- Prior art keywords
- thermal transfer
- transfer sheet
- layer
- sheet
- resin
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
- B41M5/395—Macromolecular additives, e.g. binders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
- B41M5/38214—Structural details, e.g. multilayer systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/385—Contact thermal transfer or sublimation processes characterised by the transferable dyes or pigments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/41—Base layers supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/423—Intermediate, backcoat, or covering layers characterised by non-macromolecular compounds, e.g. waxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/426—Intermediate, backcoat, or covering layers characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B41M5/5272—Polyesters; Polycarbonates
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、被熱転写シートと組み合わせ、サーマルヘツ
ド等の点状加熱印字手段を用いて記録を行なうのに適し
た熱転写シートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer sheet which is combined with a thermal transfer sheet and which is suitable for recording using a dot heating printing means such as a thermal head.
従来の技術 昇華性染料を含有する色材層を設けた熱転写シートを巻
取状態で供給し、被熱転写シートと重ねて共に走行さ
せ、熱転写シートの背面（非色材層面）よりサーマルヘ
ツド等の点状加熱印字手段により加熱し記録を行なう際
に、熱転写シートが点状加熱印字手段に溶着もしくは付
着してしわが生じ、熱転写シートのスムースな走行を妨
げ、記録自体にも抜けやムラを生じる欠点があつた。2. Description of the Related Art A thermal transfer sheet provided with a color material layer containing a sublimable dye is supplied in a wound state and is run together with a thermal transfer sheet, and a thermal head or the like is transferred from the back surface (non-color material layer surface) of the thermal transfer sheet. When recording is performed by heating with the dot heating printing means, the thermal transfer sheet is welded or adhered to the dot heating printing means and wrinkles occur, which hinders smooth running of the thermal transfer sheet and causes omission or unevenness in the recording itself. There was a flaw.
そこで、今日、これらの欠点を解消する意味で熱転写シ
ート基材の厚みを増す等により熱転写シートの厚みを増
すか、熱転写シートの背面に熱硬化性樹脂等の耐熱性樹
脂を主成分とし、必要に応じて酸化チタンやタルク等の
体質顔料を混合した塗料を用いて耐熱樹脂層を設けるこ
とによりこれら欠点の解消を図つている。Therefore, today, in order to eliminate these drawbacks, the thickness of the thermal transfer sheet is increased by increasing the thickness of the thermal transfer sheet base material, or a heat resistant resin such as a thermosetting resin is used as a main component on the back surface of the thermal transfer sheet, In order to solve these drawbacks, a heat-resistant resin layer is provided by using a paint mixed with an extender pigment such as titanium oxide or talc.
一方、記録の品質の向上に伴なつて、静電気に帰因する
欠点が目立つようになつている。たとえば、シートの走
行や摩擦によつて生じる静電気的な引力によりごみが吸
引されて熱転写シートと被熱転写シートの間、もしくは
点状加熱印字手段と熱転写シートの間等にごみが付着す
ることにより記録の抜け（部分的に記録がなされないこ
と）、サーマルヘツドの素子等の点状加熱印字手段の損
傷、各シートのたるみ・走行不良等が未解決のまま残つ
ている。On the other hand, with the improvement of recording quality, defects caused by static electricity are becoming more prominent. For example, when dust is attracted by electrostatic attraction generated by running and friction of the sheet and dust is attached between the thermal transfer sheet and the thermal transfer sheet, or between the dot-shaped heating printing unit and the thermal transfer sheet, recording is performed. Gaps (no partial recording), damage to dot heating printing means such as thermal head elements, slack in each sheet, running defects, etc. remain unsolved.
発明が解決しようとする問題点 従つて、本発明においては、静電気的な引力による上記
した諸欠点を解消し、かつ、走行がスムーズで記録の抜
けやムラの少ない熱転写シートを提供せんとするもので
ある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Accordingly, in the present invention, it is an object of the present invention to provide a thermal transfer sheet that solves the above-mentioned drawbacks due to electrostatic attraction and that is smooth in running and has no missing recording or unevenness. Is.
問題点を解決するための手段 本発明は、上記の問題点を解決するために、被熱転写シ
ートと組み合わせ、サーマルヘッド等の点状加熱印字手
段を用いて記録を行うのに適した熱転写シートであっ
て、基材シートの片面に昇華性染料を含有する色材層を
有し、基材シートの色材層を有しない側の面には両性イ
オン型もしくは陽イオン型の水溶性アクリル樹脂の層か
らなる半導電性層を有していることを特徴とする熱転写
シートを要旨とするものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a thermal transfer sheet suitable for performing recording using a dot-shaped heating printing unit such as a thermal head in combination with a thermal transfer sheet. There is a coloring material layer containing a sublimable dye on one surface of the base material sheet, and the surface of the base material sheet on the side not having the coloring material layer is made of a zwitterionic or cationic water-soluble acrylic resin. The gist is a thermal transfer sheet having a semi-conductive layer composed of layers.
第１図および第２図は本発明の熱転写シートの構造を示
す断面図であつて、第１図に示す熱転写シートは基材シ
ートの下面に色材層（熱転写層）３を、又、上面には半
導電性層４を有している構造を示しており、第２図に示
す熱転写シートは第１図に示す熱転写シートの基材シー
ト２と半導電性層４との間に耐熱樹脂層５を有している
構造を示している。色材層（熱転写層）３は単色か好ま
しくはシアン、マゼンタ、イエロー、および必要により
ブラツク等の各色の区域に塗り分けられている。半導電
性層４はいずれの図の場合にも、色材層３側に設けて背
面に設けることに替えることもできるが、色材層３への
影響を考えると、このように背面に設ける方が好まし
い。1 and 2 are sectional views showing the structure of the thermal transfer sheet of the present invention. The thermal transfer sheet shown in FIG. 1 has a coloring material layer (thermal transfer layer) 3 on the lower surface of the base material sheet and an upper surface. 2 shows a structure having a semiconductive layer 4. The thermal transfer sheet shown in FIG. 2 is a heat-resistant resin between the base sheet 2 and the semiconductive layer 4 of the thermal transfer sheet shown in FIG. A structure with layer 5 is shown. The color material layer (heat transfer layer) 3 is separately coated in areas of a single color, preferably cyan, magenta, yellow, and if necessary, each color such as black. In any of the drawings, the semiconductive layer 4 may be provided on the color material layer 3 side and replaced with the back surface, but considering the influence on the color material layer 3, it is provided on the back surface in this way. Is preferred.
熱転写シートの基材シート２としては、ポリエステルフ
イルム、ポリスチレンフイルム、ポリサルフオンフイル
ム、ポリビニルアルコールフイルム、セロフアンなどの
フイルムが用いられ、特に、耐熱性の点からポリエステ
ルフイルムが特に好ましい。その厚みは、0.5〜50μ
ｍ、好ましくは、３〜10μｍであることが望ましい。As the base sheet 2 of the thermal transfer sheet, a film such as a polyester film, a polystyrene film, a polysulfone film, a polyvinyl alcohol film, or a cellophane is used, and the polyester film is particularly preferable from the viewpoint of heat resistance. Its thickness is 0.5-50μ
m, preferably 3 to 10 μm.
色材層３は、代表的には昇華性の染料がバインダー樹脂
中に含有されてなる熱昇華転写層であつて、この層の厚
みとしては、0.2〜5.0μｍ、好ましくは0.4〜2.0μｍ程
度であることが望ましい。The color material layer 3 is typically a thermal sublimation transfer layer in which a sublimable dye is contained in a binder resin, and the thickness of this layer is 0.2 to 5.0 μm, preferably 0.4 to 2.0 μm. Is desirable.
色材層３に含まれる染料としては、分散染料であること
が望ましく、この染料は約150〜600程度の分子量を有す
ることが望ましい。この染料は、熱昇華温度、色相、耐
候性、バインダー樹脂中での安定性などを考慮して選択
され、具体的には次のようなものが例示される。The dye contained in the color material layer 3 is preferably a disperse dye, and this dye preferably has a molecular weight of about 150 to 600. This dye is selected in consideration of thermal sublimation temperature, hue, weather resistance, stability in binder resin, and the like, and specific examples include the following.
Miketon Polyester Yellow−YL（三井東圧製、C.I.Disp
ers Yellow−42）、Kayaset Yellow−Ｇ（日本化薬製、
C.I.Dispers Yellow 77）、PTY−52（三菱化成製、C.I.
Solvent Yellow 14−１）、Miketon Polyester Red BSF
（三井東圧製、C.I.Disperse Red 111）、Kayaset Red
B（日本化薬製、C.I.Disperse Red B）、PTR−54（三菱
化成製、C.I.Disperse Red 50）、Miketon Polyester B
lue FBL）（三井東圧製、C.I.Disperse Bule 56）、PTB
−67（三菱化成製、C.I.Disperse Bule 241）、Kayaset
Bule 906（日本化薬製、C.I.Solvent 112）などであ
る。Miketon Polyester Yellow-YL (Mitsui Toatsu Corporation, CIDisp
ers Yellow-42), Kayaset Yellow-G (manufactured by Nippon Kayaku,
CIDispers Yellow 77), PTY-52 (Mitsubishi Kasei, CI
Solvent Yellow 14-1), Miketon Polyester Red BSF
(Manufactured by Mitsui Toatsu, CI Disperse Red 111), Kayaset Red
B (Nippon Kayaku, CIDisperse Red B), PTR-54 (Mitsubishi Kasei, CIDisperse Red 50), Miketon Polyester B
lue FBL) (Mitsui Toatsu, CI Disperse Bule 56), PTB
−67 (Mitsubishi Kasei, CIDisperse Bule 241), Kayaset
Bule 906 (Nippon Kayaku, CISolvent 112) and the like.
染料の昇華温度、発色した状態でのカバリングパワーの
大小にもよるが、染料は転写層中に通５〜70重量％好ま
しくは10〜60重量％程度の量で存在する。The dye is present in the transfer layer in an amount of about 5 to 70% by weight, preferably about 10 to 60% by weight, although it depends on the sublimation temperature of the dye and the covering power in the state of color development.
バインダー樹脂としては、通常耐熱製が高く、しかも加
熱された場合に染料の移行を妨げないものが選択され、
例えば以下のようなものが用いられる。As the binder resin, one which is usually high in heat resistance and which does not hinder the migration of the dye when heated is selected,
For example, the following is used.
（１）セルロース系樹脂 エチルセルロース、ビドロキシエチルセルロース、エチ
ルヒドロキシセルロース、ヒドロキシプロプルセルロー
ス、メチルセルロース、酢酸セルロース、酢酪酸セルロ
ースなど。(1) Cellulosic resin Ethyl cellulose, bidroxyethyl cellulose, ethyl hydroxycellulose, hydroxypropyl cellulose, methyl cellulose, cellulose acetate, cellulose acetate butyrate, etc.
（２）ビニル系樹脂 ポリビニルアルコール、ポリ酢酸ビニル、ポリビニルブ
チラール、ポリビニルピロリドン、ポリエステル、ポリ
アクリルアミドなど。(2) Vinyl resin Polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, polyvinyl pyrrolidone, polyester, polyacrylamide and the like.
このような色材層３を基材シート２の片面に設けるに
は、溶剤に染料およびバインダー樹脂を溶解するかある
いは染料だけは分散状態にして色材層形成用インキ組成
物を調製し、これを適当な印刷方法あるいは塗布方法に
より基材シート２に設ければ良い。なお、必要に応じ
て、色材層形成用インキには任意の添加剤を加えても良
い。In order to provide such a color material layer 3 on one surface of the base sheet 2, a dye and a binder resin are dissolved in a solvent or only the dye is dispersed to prepare an ink composition for forming a color material layer. May be provided on the base material sheet 2 by an appropriate printing method or coating method. If necessary, any additive may be added to the color material layer forming ink.
半導電性層４は熱転写シートの取り扱いの時の帯電によ
り熱転写シート上に発生した電荷を逃がしやすくするも
のであり、半導電性を有する材料であればいずれの材料
を用いて形成してもよい。The semiconductive layer 4 facilitates release of electric charges generated on the thermal transfer sheet due to charging during handling of the thermal transfer sheet, and may be formed using any material as long as it has semiconductive properties. .
例えば金属箔を基材シート２として用いれば、帯電によ
つて生じる不都合は解消できるし、あるいは基材シート
２自体はプラスチツクフイルムであつても、金属箔や金
属蒸着膜との積層によつて同様の効果を発揮できる。For example, if a metal foil is used as the base sheet 2, the inconvenience caused by charging can be eliminated, or even if the base sheet 2 itself is a plastic film, it is the same as when laminated with a metal foil or a metal vapor deposition film. The effect of can be exhibited.
しかし、熱転写シートとしての取り扱いの容易さ、価格
を考慮し、基材シート２としてはポリエステルフイルム
等のプラスチツクフイルムを通常用いることを考慮する
と、半導電性物質を含有する半導電性塗料を塗布して半
導電性層を形成するのが最も適当である。However, considering the ease of handling as a thermal transfer sheet, the price, and the fact that a plastic film or other plastic film is usually used as the base material sheet 2, a semiconductive coating material containing a semiconductive material is applied. Is most suitable to form a semiconductive layer.
このような半導電性塗料中に含有させる半導電性物質は
金属の微粉末もしくは金属酸化物の微粉末である。The semiconductive substance contained in such a semiconductive coating material is fine powder of metal or fine powder of metal oxide.
又は、半導電性物質としては「帯電防止剤」と呼ばれる
有機化合物も使用でき、これらは上記した金属・金属酸
化物とくらべ低湿度での帯電防止能は低いが、導電性塗
料調整の容易さの点ではすぐれている。Alternatively, an organic compound called an "antistatic agent" can be used as the semiconductive substance, and although these have a lower antistatic ability at low humidity than the above-mentioned metals and metal oxides, they are easy to adjust the conductive paint. Is excellent in terms of.
「帯電防止剤」としては陽イオン型界面活性剤（例えば
第４級アンモニウム塩、ポリアミン誘導体など）、陰イ
オン型界面活性剤（例えばアルキルホスフエートな
ど）、両性イオン型界面活性剤（例えばベタイン型のも
のなど）、もしくは非イオン型界面活性剤（例えば脂肪
酸エステルなど）が使用でき、更に、ポリシロキサン系
のものも使用できる。上記の「帯電防止剤」に関連して
両性イオン型もしくは陽イオン型の水溶性アクリル樹脂
は、結合材なしに単独で塗料化し、乾燥時塗布量0.1〜2
g/m2程度の塗膜を形成することより導電性層とすること
ができ、このような水溶性アクリル樹脂は高湿度下にお
いても熱転写層の色材層（積み重ねたり巻くことにより
導電性層と接続する）に影響を与えて染料を溶解するこ
とがないので好ましい。"Antistatic agents" include cationic surfactants (eg, quaternary ammonium salts, polyamine derivatives, etc.), anionic surfactants (eg, alkyl phosphates, etc.), zwitterionic surfactants (eg, betaine-type surfactants). Etc.) or a nonionic surfactant (for example, fatty acid ester), and a polysiloxane-based one can also be used. In connection with the above-mentioned "antistatic agent", a zwitterionic or cationic water-soluble acrylic resin is made into a paint alone without a binder, and a dry coating amount of 0.1 to 2
A conductive layer can be formed by forming a coating film of about g / m 2 , and such a water-soluble acrylic resin can be used as a coloring material layer for the thermal transfer layer (a conductive layer by stacking or winding even under high humidity). It is preferable because it does not dissolve the dye by affecting the (connecting with).
一方、電子伝導性の無機微粉末としては、酸化チタンも
しくは酸化亜鉛などの微粉末にドーピング（酸化チタン
や酸化亜鉛に不純物をまぜて焼き、酸化チタンや酸化亜
鉛の結晶格子を乱して半導電性とする処理）を行なつた
もの又は酸化錫などの微粉末を使用することができる。On the other hand, as an electronically conductive inorganic fine powder, a fine powder such as titanium oxide or zinc oxide is doped (titanium oxide or zinc oxide is mixed with impurities and baked, and the crystal lattice of titanium oxide or zinc oxide is disturbed to cause semiconductivity). It is possible to use a fine powder such as tin oxide or the like which has been subjected to a treatment for imparting the property.
上記したような半導電性物質を含有する半導電性塗料は
通常の方法により調整できるが、好ましくは、帯電防止
剤はアルコール溶液又は水溶液の形で用いる。電子伝導
性の無機微粉末はこのままの形で用い、バインダーとな
るべき樹脂の有機溶剤溶液中に、分散することにより調
製する。The semiconductive coating material containing the semiconductive substance as described above can be prepared by a usual method, but preferably, the antistatic agent is used in the form of an alcohol solution or an aqueous solution. The electronically conductive inorganic fine powder is used as it is, and is prepared by dispersing it in an organic solvent solution of a resin serving as a binder.
半導電性塗料中、バインダーとなるべき樹脂は、（イ）
熱硬化性樹脂、例えば熱硬化性のポリアクリル酸エステ
ル樹脂、ポリウレタン樹脂、又は、（ロ）熱可塑性樹
脂、例えばポリ塩化ビニル樹脂、ポリビニルブチラール
樹脂、ポリエステル樹脂、等から選ばれた樹脂が好まし
い。The resin that should be the binder in the semi-conductive paint is (a)
A resin selected from thermosetting resins such as thermosetting polyacrylic acid ester resins and polyurethane resins, or (b) thermoplastic resins such as polyvinyl chloride resins, polyvinyl butyral resins, and polyester resins are preferable.
調製した半導電性塗料は通常の塗布方法、例えばブレー
ドコーター、グラビヤコーターなどによつてコーテイン
グするのが一般的であり、或いはスプレーコーテイング
によつてもよい。The prepared semiconductive paint is generally coated by a usual coating method such as a blade coater or a gravure coater, or may be spray coated.
半導電性層の厚みは１〜３μｍ、場合によつては１〜５
μｍであり、塗布・乾燥後（場合によつては硬化後）の
半導電性層の表面固有抵抗が１×1010Ωcm以下になるよ
う、バインダーと導電性物質の比を決定する。なお、両
性イオン型もしくは陽イオン型の水溶性アクリル樹脂
は、アルコール溶液とし、導電性物質としてバインダー
に対し固型分で５〜30重量％添加し、塗料化して使用す
ることもできる。The thickness of the semiconductive layer is 1 to 3 μm, and in some cases 1 to 5
The ratio of the binder to the conductive substance is determined so that the surface resistivity of the semiconductive layer after coating / drying (or curing in some cases) is 1 × 10 10 Ωcm or less. The amphoteric ion-type or cation-type water-soluble acrylic resin may be used in the form of paint by adding it as an alcohol solution and adding 5 to 30% by weight as a conductive substance to the binder in a solid form.
作用・効果 本発明の熱転写シートは以上説明したように色材層とは
反対側の、通常、背面もしくは裏面と呼ばれる側に半導
電性層を有しているので、通常、ごく薄いプラスチツク
フイルムを基材とする熱転写シートが静電気的な引力に
よりしわが発生したり、ごみが付着するのを防止できる
が、半導電性層は、種々の構造の熱転写シートの背面に
設けて、同様な効果を生むことができる。Action / Effect The thermal transfer sheet of the present invention has a semi-conductive layer on the side opposite to the color material layer, which is usually called the back surface or the back surface, as described above, so that a very thin plastic film is usually used. Although the heat transfer sheet as the base material can prevent wrinkles and dust from adhering due to electrostatic attraction, the semi-conductive layer is provided on the back surface of the heat transfer sheet having various structures to achieve the same effect. Can be born.
他の実施態様 半導電性層を適用した他の例としては第２図に示すよう
な構造のものがあり、背面に耐熱樹脂層５を介して半導
電性層４を設けてあるものである。Other Embodiments Another example of applying a semi-conductive layer is one having a structure as shown in FIG. 2, in which a semi-conductive layer 4 is provided on the backside through a heat resistant resin layer 5. .
耐熱樹脂層５は、耐熱性の高い樹脂、特に、熱硬化性樹
脂、紫外線硬化性樹脂、もしくは電子線硬化性樹脂を含
む塗料を塗布し、硬化させて形成し、必要に応じ、体質
顔料を混合、分散させて形成してあつてもよい。このよ
うな耐熱樹脂層５があると、基材シートが点状加熱印字
手段に溶着するのが防止されるので、耐熱樹脂層５を介
して半導電性層を設けることはより好ましい。The heat-resistant resin layer 5 is formed by applying a coating material containing a resin having high heat resistance, in particular, a thermosetting resin, an ultraviolet curable resin, or an electron beam curable resin, and curing the coating material. It may be formed by mixing and dispersing. With such a heat-resistant resin layer 5, the base sheet is prevented from being welded to the dot-shaped heating printing means, and therefore it is more preferable to provide the semiconductive layer via the heat-resistant resin layer 5.
熱転写シートの使用方法 本発明の熱転写シートは、先にも述べたように被熱転写
シートと組み合わせて使用される。被熱転写シートの一
例を挙げると、コート紙、アート紙、キヤストコート
紙、もしくは合成紙等の紙を通常、基体シートとし、熱
可塑性の飽和ポリエステル樹脂などの熱可塑性樹脂の
層、或いは熱可塑性樹脂中に体質顔料を分散した層を塗
布などにより形成して受容層としたものである。Method of Using Thermal Transfer Sheet The thermal transfer sheet of the present invention is used in combination with the thermal transfer sheet as described above. To give an example of the heat-transferable sheet, a paper such as coated paper, art paper, cast coated paper, or synthetic paper is usually used as a base sheet, and a layer of a thermoplastic resin such as a thermoplastic saturated polyester resin or a thermoplastic resin is used. A layer having an extender pigment dispersed therein is formed by coating or the like to form a receiving layer.
このような被熱転写シートは、その受容層が熱転写シー
トの色材層と接するようにして熱転写シートと重ね合わ
せ、熱転写シートの背面より点状加熱印字手段、例えば
サーマルヘツドを用いて加熱印字し、その後、両シート
を剥離する。Such a heat-transferable sheet is superposed on the heat-transfer sheet so that the receiving layer is in contact with the color material layer of the heat-transfer sheet, and dot-like heating printing means from the back surface of the heat-transfer sheet, for example, heat-printing using a thermal head, After that, both sheets are peeled off.
静電気に帰因する障害は熱転写シートのみならず被熱転
写シート側にも生じるが、確率的には熱転写シート側に
起きる事が多いので、本発明のような半導電性層を有す
る熱転写シートを使用すれば障害はかなり少なくなる。The failure due to static electricity occurs not only on the thermal transfer sheet but also on the thermal transfer sheet side, but since it often happens stochastically on the thermal transfer sheet side, a thermal transfer sheet having a semiconductive layer as in the present invention is used. The obstacles will be much less.
しかし、更に一層の静電気対策を考えるときは、被熱転
写シートに半導電性付与を行なうとよい。被熱転写シー
トに半導電性付与を行なうにはその受容層側に処理を行
なつてもよいが、熱転写シートにおける場合と同様、受
容層とは反対側に導電性付与を行なう方がよい。半導電
性付与は熱転写シートにおけるのと同様に、半導電性層
を何らかの形で設ければよいが、より好ましくは前記し
た電子伝導性の無機微粉末もしくは帯電防止剤を合成樹
脂エマルジヨン、合成ゴムラテツクス、水溶性樹脂の水
溶液などの水性塗料中に分散ないし溶解して３〜10g/m2
程度の乾燥塗膜を塗布形成するとよい。However, when considering further countermeasures against static electricity, it is advisable to impart semiconductivity to the thermal transfer sheet. In order to impart semiconductivity to the heat-transferable sheet, the receptor layer side may be treated, but as in the case of the thermal transfer sheet, it is better to impart conductivity to the side opposite to the receptor layer. The semiconducting property may be imparted in the same manner as in the thermal transfer sheet by providing the semiconducting layer in some form, but more preferably, the above-mentioned electronically conductive inorganic fine powder or antistatic agent is a synthetic resin emulsion or a synthetic rubber latex. , 3-10g / m 2 by dispersing or dissolving in water-based paint such as aqueous solution of water-soluble resin
It is advisable to apply a dry coating film to a certain extent.
合成樹脂エマルジョンとしてはポリアクリル酸エステル
樹脂やポリウレタン樹脂などのエマルジョン、合成ゴム
ラテツクスとしてはメチルメタクリレート−ブタジエ
ン、スチレン−ブタジエン等のゴムラテツクス、水溶性
樹脂の水溶液としてはポリビニルアルコール樹脂、ポリ
アクリルアマイド樹脂、澱粉などの水溶液が例示でき
る。The synthetic resin emulsion is an emulsion such as polyacrylic ester resin or polyurethane resin, the synthetic rubber latex is a rubber latex such as methylmethacrylate-butadiene or styrene-butadiene, and the aqueous solution of the water-soluble resin is a polyvinyl alcohol resin, a polyacrylic amide resin, or starch. Aqueous solutions such as
或いはもつと簡易に帯電防止剤の水溶液をスプレーコー
トしてもよい。Alternatively, an aqueous solution of the antistatic agent may be simply spray-coated.
この方法は簡易であるだけでなく、被熱転写シートのカ
ール防止上も極めて有効である。This method is not only simple but also extremely effective in preventing curling of the heat-transferred sheet.
実施例１（耐熱樹脂層あり） 厚さ６μｍのポリエチレンテレフタレートフイルムの片
面に、熱硬化性アクリル樹脂のトルエン溶液を固形分で
約2g/m2塗工乾燥し、その上に、カチオン型のポリアク
リル酸エステル樹脂からなる帯電防止剤のアルコール溶
液を固形分で約0.3g/m2塗工・乾燥し、耐熱樹脂層を形
成した。Example 1 (with heat-resistant resin layer) A toluene solution of a thermosetting acrylic resin was coated and dried at a solid content of about 2 g / m 2 on one side of a polyethylene terephthalate film having a thickness of 6 μm, and a cationic poly An alcohol solution of an antistatic agent composed of an acrylic ester resin was coated and dried at a solid content of about 0.3 g / m 2 to form a heat resistant resin layer.
反対面に、次の組成の色材層用塗料を固形分で1.0g/m2
塗布・乾燥して熱転写シートの巻取りを作成した。On the other side, paint with a solid content of 1.0 g / m 2
A thermal transfer sheet was wound by coating and drying.
キヤストコート紙（米坪110g/m2）の片面に飽和ポリエ
ステル樹脂のメチルエチルケトン／トルエン（1:1）溶
液を乾燥時塗布量が10g/m2になるよう塗布・乾燥して被
熱転写シートを得た。 A cast-coated paper (110 g / m 2 of tsubo) is coated on one side with a solution of a saturated polyester resin, methyl ethyl ketone / toluene (1: 1) so that the dry coating amount is 10 g / m 2 , and dried to obtain a heat-transferable sheet. It was
以上で得られた巻取り状の熱転写シートの色材層と被熱
転写シートの受容層面を対向させて、熱転写記録装置
で、画像を記録したところ、熱転写シートにはしわがほ
とんど発明せず、ごみの付着も起こらず、画像抜けのな
い美しい階調画像が得られた。When the image was recorded by a thermal transfer recording device with the color material layer of the wound thermal transfer sheet and the receiving layer surface of the thermal transfer sheet opposed to each other obtained above, almost no wrinkles were invented on the thermal transfer sheet and dust was generated. Adhesion did not occur, and a beautiful gradation image without image omission was obtained.
比較例１ 実施例１と同様に、但し帯電防止剤を塗工しないで、記
録したところ、熱転写シートにしわの発生が多い上にご
みが付着し、しわやごみのある部分に相当する画像面に
は、画像の抜けがあり、満足すべき画像が得られなかつ
た。Comparative Example 1 Similar to Example 1, but recording was performed without coating an antistatic agent, and as a result, the thermal transfer sheet showed many wrinkles, and dust adhered to the image surface corresponding to a wrinkled or dusty portion. There was a missing image in the image, and a satisfactory image could not be obtained.
実施例２（耐熱樹脂層なし） 厚さ９μｍのポリエチレンテレフタレートフイルムの片
面に、導電性酸化亜鉛を練り込んだ下記の組成の背面層
用塗料を固形分で3g/m2塗工・乾燥した。Example 2 (without heat-resistant resin layer) On one side of a polyethylene terephthalate film having a thickness of 9 μm, 3 g / m 2 of solid content was applied and dried as a back layer coating material having the following composition in which conductive zinc oxide was kneaded.
反対面には実施例１で用いたのと同じ色材層用塗料を乾
燥時塗布量が1.0g/m2になるよう塗布・乾燥して、熱転
写シートの巻取りを作成した。 The same color material layer coating material as that used in Example 1 was applied and dried on the opposite surface so that the dry coating amount was 1.0 g / m 2 , to prepare a wound thermal transfer sheet.
この熱転写シートを用いても実施例１におけるのと同様
の結果を得た。The same results as in Example 1 were obtained using this thermal transfer sheet.
第１図および第２図は本発明の熱転写シートの構造を示
すいずれも断面図である。 １……熱転写シート ２……基材シート ３……色材層 ４……半導電性層 ５……耐熱樹脂層1 and 2 are sectional views showing the structure of the thermal transfer sheet of the present invention. 1 ... Thermal transfer sheet 2 ... Base sheet 3 ... Color material layer 4 ... Semi-conductive layer 5 ... Heat-resistant resin layer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−148695（ＪＰ，Ａ) 特開 昭59−256526（ＪＰ，Ａ) 特開 昭60−193680（ＪＰ，Ａ) 特開 昭61−135791（ＪＰ，Ａ) 特開 昭61−175089（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-57-148695 (JP, A) JP-A-59-256526 (JP, A) JP-A-60-193680 (JP, A) JP-A 61- 135791 (JP, A) JP-A-61-175089 (JP, A)
Claims (2)
ッド等の点状加熱印字手段を用いて記録を行うのに適し
た熱転写シートであって、基材シートの片面に昇華性染
料を含有する色材層を有し、基材シートの色材層を有し
ない側の面には両性イオン型もしくは陽イオン型の水溶
性アクリル樹脂の層からなる半導電性層を有しているこ
とを特徴とする熱転写シート。1. A thermal transfer sheet suitable for recording by using a dot-shaped heating printing means such as a thermal head in combination with a thermal transfer sheet, and a coloring material containing a sublimable dye on one surface of a base material sheet. And a semi-conductive layer comprising a layer of a zwitterionic or cationic water-soluble acrylic resin on the surface of the substrate sheet on the side not having the coloring material layer. Thermal transfer sheet.
アクリル樹脂の層からなる半導電性層と基材シートとの
間には更に耐熱樹脂層を有していることを特徴とする特
許請求の範囲（１）項記載の熱転写シート。2. A heat-resistant resin layer is further provided between the semiconductive layer made of a zwitterionic or cationic water-soluble acrylic resin layer and the substrate sheet. The thermal transfer sheet according to item (1).
Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039935A JPH0712753B2 (en) | 1985-02-28 | 1985-02-28 | Thermal transfer sheet |
| US06/833,039 US4720480A (en) | 1985-02-28 | 1986-02-26 | Sheet for heat transference |
| EP19940201791 EP0623476B1 (en) | 1985-02-28 | 1986-02-27 | Sheet material for heat transfer printing |
| DE19863650218 DE3650218T2 (en) | 1985-02-28 | 1986-02-27 | Heat transfer layer and method of use. |
| EP86301428A EP0194106B1 (en) | 1985-02-28 | 1986-02-27 | Sheet for heat transference and method for using the same |
| DE19863650591 DE3650591T2 (en) | 1985-02-28 | 1986-02-27 | Material layer for thermal transfer printing |
| CA000502965A CA1240514A (en) | 1985-02-28 | 1986-02-28 | Sheet for heat transference and method for using the same |
| US07/082,225 US4820686A (en) | 1985-02-28 | 1987-08-06 | Sheet for heat transference |
| US07/301,989 US4923847A (en) | 1985-02-28 | 1989-01-26 | Sheet for heat transference and method for using the same |
| US07/487,184 US5130292A (en) | 1985-02-28 | 1990-03-01 | Sheet for heat transference and method for using the same |
| US07/876,415 US5260258A (en) | 1985-02-28 | 1992-04-30 | Sheet for heat transference |
| US08/044,613 US5270285A (en) | 1965-02-28 | 1993-04-09 | Sheet for heat transference |
| US08/116,276 US5352652A (en) | 1985-02-28 | 1993-09-03 | Heat transfer sheet |
| US08/264,693 US5439872A (en) | 1985-02-28 | 1994-06-23 | Image-receiving sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039935A JPH0712753B2 (en) | 1985-02-28 | 1985-02-28 | Thermal transfer sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61197284A JPS61197284A (en) | 1986-09-01 |
| JPH0712753B2 true JPH0712753B2 (en) | 1995-02-15 |
Family
ID=12566800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60039935A Expired - Fee Related JPH0712753B2 (en) | 1965-02-28 | 1985-02-28 | Thermal transfer sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712753B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2588472B2 (en) * | 1987-04-21 | 1997-03-05 | 大日本印刷株式会社 | Method of manufacturing heat transfer sheet |
| JP2591952B2 (en) * | 1987-04-21 | 1997-03-19 | 大日本印刷株式会社 | Heat transfer sheet |
| JPH01114487A (en) * | 1987-10-28 | 1989-05-08 | Toppan Printing Co Ltd | Thermal transfer recording medium |
| JPH02200491A (en) * | 1989-01-31 | 1990-08-08 | Toyo Ink Mfg Co Ltd | Thermal transfer material |
| JP2948824B2 (en) * | 1989-02-28 | 1999-09-13 | 株式会社リコー | Sublimation type thermal transfer recording medium |
| JPH03292195A (en) * | 1990-04-10 | 1991-12-24 | Matsushita Electric Ind Co Ltd | Receiving material for thermal transfer recording |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714890A (en) * | 1980-06-30 | 1982-01-26 | Sharp Kk | Ecd cell matrix display driving circuit system |
| JPS60193680A (en) * | 1984-03-16 | 1985-10-02 | Toshiba Corp | Ink ribbon for thermal transfer recording |
| JPS61135791A (en) * | 1984-12-06 | 1986-06-23 | Sanyo Kokusaku Pulp Co Ltd | Thermal transfer recording sheet |
| JPH0717108B2 (en) * | 1985-01-31 | 1995-03-01 | 大日本印刷株式会社 | Thermal transfer sheet |
-
1985
- 1985-02-28 JP JP60039935A patent/JPH0712753B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61197284A (en) | 1986-09-01 |
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