JPH0679976A - Thermal transfer sheet - Google Patents
Thermal transfer sheetInfo
- Publication number
- JPH0679976A JPH0679976A JP5029645A JP2964593A JPH0679976A JP H0679976 A JPH0679976 A JP H0679976A JP 5029645 A JP5029645 A JP 5029645A JP 2964593 A JP2964593 A JP 2964593A JP H0679976 A JPH0679976 A JP H0679976A
- Authority
- JP
- Japan
- Prior art keywords
- dye
- thermal transfer
- transfer sheet
- sheet
- expressed
- 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.)
- Granted
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
- B41M5/385—Contact thermal transfer or sublimation processes characterised by the transferable dyes or pigments
- B41M5/39—Dyes containing one or more carbon-to-nitrogen double bonds, e.g. azomethine
-
- 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
- B41M5/3852—Anthraquinone or naphthoquinone dyes
-
- 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
- B41M5/3854—Dyes containing one or more acyclic carbon-to-carbon double bonds, e.g., di- or tri-cyanovinyl, methine
-
- 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
- B41M5/3858—Mixtures of dyes, at least one being a dye classifiable in one of groups B41M5/385 - B41M5/39
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/02—Dye diffusion thermal transfer printing (D2T2)
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Coloring (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、熱転写シートに関し、
更に詳しくは発色濃度、鮮明性及び諸堅牢性に優れた記
録画像を被転写材に容易に与えることが出来る熱転写シ
ートを提供することを目的とする。FIELD OF THE INVENTION The present invention relates to a thermal transfer sheet,
More specifically, it is an object of the present invention to provide a thermal transfer sheet which can easily provide a transferred image with a recorded image excellent in color density, sharpness and various fastnesses.
【0002】[0002]
【従来の技術】従来、種々の熱転写方法が公知である
が、それらの中で昇華性染料を記録剤とし、これを紙等
の基材シートに担持させて熱転写シートとし、昇華性染
料で染着可能な被転写材、例えば、ポリエステル製織布
等に重ね、熱転写シートの裏面からパターン状に熱エネ
ルギーを与えて、昇華性染料を被転写材に移行させる昇
華転写方法が行われている。2. Description of the Related Art Conventionally, various thermal transfer methods have been known. Among them, a sublimable dye is used as a recording agent, which is supported on a base material sheet such as paper to form a thermal transfer sheet, which is dyed with the sublimable dye. There is a sublimation transfer method in which a sublimable dye is transferred to a transfer target material by superimposing it on a transferable material such as a woven polyester cloth and applying heat energy in a pattern from the back surface of the thermal transfer sheet.
【0003】[0003]
【発明が解決しようとしている問題点】上記昇華転写方
法において、被転写材が例えばポリエステル製織布等で
ある昇華捺染方法では、熱エネルギーの付与が比較的長
時間である為、被転写材自体も付与された熱エネルギー
で加熱される結果、比較的良好な染料の移行が達成され
ている。しかしながら、記録方法の進歩により、サーマ
ルヘッド等を用いて、高速度で、例えば、ポリエステル
シートや紙に染料受容層を設けた被転写材を使用し、こ
れらの被転写材に繊細な文字や図形或いは写真像を形成
する場合には、熱エネルギーの付与は秒単位以下の極め
て短時間であることが要求され、従って、この様な短時
間では昇華性染料及び被転写材が十分には加熱されない
為に、十分な濃度の画像を形成することが出来ない。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the sublimation transfer method described above, in the sublimation printing method in which the material to be transferred is, for example, a polyester woven cloth, the transfer of heat energy takes a relatively long time, so the material to be transferred itself Also as a result of being heated with the applied thermal energy, a relatively good dye transfer is achieved. However, due to the progress of recording methods, a thermal head or the like is used at a high speed, for example, a transfer material having a dye receiving layer provided on a polyester sheet or paper is used, and delicate characters or figures are formed on the transfer material. Alternatively, when a photographic image is formed, the application of heat energy is required to be performed in an extremely short time of seconds or less. Therefore, the sublimable dye and the material to be transferred are not sufficiently heated in such a short time. Therefore, an image with sufficient density cannot be formed.
【0004】従って、この様な高速記録に対応する為
に、昇華性に優れた昇華性染料が開発されたが、昇華性
に優れる染料は、一般にその分子量が小である為、転写
後の被転写材中において染料が経時的に移行したり、表
面にブリードアウトしたりして、折角形成した画像が乱
れたり、不鮮明となったり或いは周囲の物品を汚染する
という問題が生じている。この様な問題を回避する為
に、比較的分子量の大なる昇華性染料を使用すると、上
記の如き高速記録方法では染料の昇華速度が劣る為、上
記の如く満足出来る濃度の画像が形成し得ないものであ
った。従って、本発明の目的は、昇華性染料を使用する
熱転写方法において、上記の如き極めて短時間の熱エネ
ルギーの付与によって、十分に濃度のある鮮明な画像を
与え、しかも形成された画像が優れた諸堅牢性を示す熱
転写シートを提供することである。Therefore, in order to cope with such high speed recording, a sublimable dye having an excellent sublimation property has been developed. However, since a dye having an excellent sublimation property generally has a small molecular weight, a dye after transfer is transferred. There is a problem that an image formed at a corner is disturbed, becomes unclear, or contaminates surrounding articles because the dye migrates with time in the transfer material or bleeds out on the surface. In order to avoid such a problem, when a sublimable dye having a relatively large molecular weight is used, the sublimation speed of the dye is inferior in the above high-speed recording method, so that an image having a satisfactory density as described above can be formed. It was not there. Therefore, an object of the present invention is to provide a sufficiently dense and clear image by applying thermal energy for an extremely short time as described above in a thermal transfer method using a sublimable dye, and the formed image is excellent. It is to provide a thermal transfer sheet showing various toughness.
【0005】[0005]
【問題点を解決する為の手段】上記目的は以下の本発明
によって達成される。即ち、本発明は、基材シート及び
該基材シートの一方の面に形成された染料担持層からな
り、該染料担持層に包含される染料が、下記式(I)で
表される染料と下記式1〜15で表される少なくとも1
種の昇華性染料との混合物であることを特徴とする熱転
写シートである。The above object can be achieved by the present invention described below. That is, the present invention comprises a base material sheet and a dye carrying layer formed on one surface of the base material sheet, and the dye contained in the dye carrying layer is a dye represented by the following formula (I): At least 1 represented by the following formulas 1 to 15
It is a thermal transfer sheet characterized by being a mixture with a sublimable dye of one kind.
【0006】[0006]
【化5】 [Chemical 5]
【0007】[0007]
【化6】 [Chemical 6]
【0008】[0008]
【化7】 [Chemical 7]
【0009】[0009]
【化8】 [Chemical 8]
【0010】[0010]
【作用】前記式(I)の染料は熱転写シート用染料とし
て鮮明なシアン色調及び優れた熱移行性を示し、高濃度
且つ鮮明な画像を形成するが、転写後被転写材の受像層
内において染料のブリード性があり、長期保存中には画
像の滲みを生じ、その他耐光性等の堅牢度に欠ける。一
方、分子量の高い或いは水酸基等の極性基を有する他の
シアン染料は転写後優れた耐ブリード性及び耐光性の画
像を形成するが、染料担持層内で結晶化又は粒状に析出
し、熱移行性に劣り高濃度及び鮮明な画像を形成するこ
とが出来ない。The dye of the formula (I) as a dye for a thermal transfer sheet shows a clear cyan color tone and an excellent heat transfer property and forms a high density and clear image. However, after transfer, in the image receiving layer of the transferred material. The dye has a bleeding property, causes image bleeding during long-term storage, and lacks fastness such as light resistance. On the other hand, other cyan dyes having a high molecular weight or having a polar group such as a hydroxyl group form an image with excellent bleeding resistance and light resistance after transfer, but are crystallized or granularly precipitated in the dye-carrying layer, and heat transfer occurs. It is inferior in properties and cannot form high density and clear images.
【0011】これに対し、前記式(I)で表される染料
と前記式1〜15の昇華性染料との混合物を使用するこ
とによって、該混合物染料は染料担持層内においていず
れか一方が不純物として作用して結晶化又は析出する傾
向が少なく、従って良好な熱移行性を示し、発色濃度及
び鮮明性に優れた画像を与える。一方、受像層内におい
ては分子量の大なる式1〜15の染料と式(I)の染料
同士が会合して式(I)の染料のブリード性が抑えら
れ、耐ブリード性や保存性等の堅牢性に優れた画像とな
る。On the other hand, by using a mixture of the dye represented by the formula (I) and the sublimable dyes represented by the formulas 1 to 15, one of the mixture dyes is an impurity in the dye carrying layer. It has less tendency to crystallize or precipitate as a result of the above, and therefore exhibits a good heat transfer property and gives an image excellent in color density and sharpness. On the other hand, in the image-receiving layer, the dyes of formulas 1 to 15 having a large molecular weight and the dyes of formula (I) associate with each other to suppress the bleeding property of the dye of formula (I), and the bleeding resistance and storage stability are The image has excellent fastness.
【0012】[0012]
【好ましい実施態様】次に好ましい実施態様を挙げて本
発明を更に詳細に説明する。式(I)の染料と前記式1
〜15の染料との好ましい混合比は15:85〜85:
15の重量比であり、いずれか一方が少なすぎるか又は
多すぎると高濃度、鮮明性及び堅牢度のいずれかが不十
分となるので好ましくない。又、上記の染料混合物は熱
転写シートの調製時に使用するメチルエチルケトン、ト
ルエン、エタノール、イソプロピルアルコール、シクロ
ヘキサノン、酢酸エチル等或いはそれらの混合溶剤等の
汎用有機溶剤に対する溶解性が良く、又、基材シート上
に形成する染料担持層において、染料が結晶状態の無い
或いは低い状態に存在することが出来、従来の染料の場
合の如く、結晶性の高い存在状態に比して著しく少ない
付与熱量で染料が被転写材へ容易に熱移行し得るもので
あった。BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments. The dye of formula (I) and the above formula 1
The preferable mixing ratio with the dye of 15 to 15 is 85:85 to 85 :.
It is a weight ratio of 15. If either one is too small or too much, any one of high density, sharpness and fastness becomes insufficient, which is not preferable. Further, the above dye mixture has good solubility in general-purpose organic solvents such as methyl ethyl ketone, toluene, ethanol, isopropyl alcohol, cyclohexanone, ethyl acetate, etc. used in the preparation of the thermal transfer sheet, or a mixed solvent thereof, and also on the base sheet. In the dye-carrying layer formed in the above step, the dye can be present in a non-crystalline state or in a low state, and as in the case of conventional dyes, the dye can be coated with a significantly smaller amount of applied heat than in the existing state of high crystallinity. The heat transfer to the transfer material was easy.
【0013】本発明の熱転写シートは以上の如き前記の
特定の染料混合物を使用することを特徴とし、それ以外
の構成は従来公知の熱転写シートの構成と同様でよい。
前記の染料混合物を含む本発明の熱転写シートに使用す
る基材シートとしては、従来公知のある程度の耐熱性と
強度を有するものであればいずれのものでもよく、例え
ば、0.5〜50μm、好ましくは3〜10μm程度の
厚さの紙、各種加工紙、ポリエステルフイルム、ポリス
チレンフイルム、ポリプロピレンフイルム、ポリスルホ
ンフイルム、ポリカーボネートフイルム、アラミドフイ
ルム、ポリビニルアルコールフイルム、セロファン等で
あり、特に好ましいものはポリエステルフイルムであ
る。上記の如き基材シートの表面に設ける染料担持層
は、前記染料混合物を任意のバインダー樹脂で担持させ
た層である。The thermal transfer sheet of the present invention is characterized by using the above-mentioned specific dye mixture, and other configurations may be the same as those of the conventionally known thermal transfer sheets.
The base sheet used for the thermal transfer sheet of the present invention containing the above-mentioned dye mixture may be any one as long as it has a conventionally known degree of heat resistance and strength, for example, 0.5 to 50 μm, preferably Is a paper having a thickness of about 3 to 10 μm, various processed papers, polyester film, polystyrene film, polypropylene film, polysulfone film, polycarbonate film, aramid film, polyvinyl alcohol film, cellophane, etc., and particularly preferred is polyester film. . The dye carrying layer provided on the surface of the substrate sheet as described above is a layer in which the dye mixture is carried by any binder resin.
【0014】前記の染料混合物を担持する為のバインダ
ー樹脂としては、従来公知のものがいずれも使用出来、
好ましいものを例示すれば、エチルセルロース、ヒドロ
キシエチルセルロース、エチルヒドロキシセルロース、
ヒドロキシプロピルセルロース、メチルセルロース、酢
酸セルロース、酢酪酸セルロース等のセルロース系樹
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、ポリビニルアセトアセタール、ポリビニ
ルピロリドン、ポリアクリルアミド等のビニル系樹脂等
が挙げられ、これらの中で特にポリビニルブチラール及
びポリビニルアセタールが、耐熱性や染料の移行性等の
点から好ましいものである。本発明の熱転写シートの染
料担持層は、基本的には上記の材料から形成されるが、
その他必要に応じて従来公知と同様な各種の添加剤をも
包含し得るものである。As the binder resin for supporting the above-mentioned dye mixture, any conventionally known binder resin can be used,
Preferred examples include ethyl cellulose, hydroxyethyl cellulose, ethyl hydroxycellulose,
Specific examples include cellulose-based resins such as hydroxypropyl cellulose, methyl cellulose, cellulose acetate, and cellulose acetate butyrate, and polyvinyl resins such as polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, polyvinyl acetoacetal, polyvinyl pyrrolidone, and polyacrylamide. In particular, polyvinyl butyral and polyvinyl acetal are preferable from the viewpoint of heat resistance and dye migration. The dye carrying layer of the thermal transfer sheet of the present invention is basically formed of the above materials,
In addition, various additives similar to conventionally known ones can be included if necessary.
【0015】この様な染料担持層は、好ましくは適当な
溶剤中に前記の染料混合物、バインダー樹脂その他の任
意成分を加えて各成分を溶解又は分散させて担持層形成
用塗液又はインキを調製し、これを上記の基材シート上
に塗布及び乾燥させて形成する。この様にして形成する
担持層は、0.2〜5.0μm、好ましくは0.4〜
2.0μm程度の厚さであり、又、担持層中の前記の染
料混合物は、担持層の重量の5〜70重量%、好ましく
は10〜60重量%の量で存在するのが好適である。Such a dye-supporting layer is preferably prepared by adding the above-mentioned dye mixture, binder resin and other optional components to a suitable solvent to dissolve or disperse each component to prepare a coating liquid or ink for forming a support layer. Then, this is applied and dried on the above-mentioned substrate sheet to form. The supporting layer thus formed has a thickness of 0.2 to 5.0 μm, preferably 0.4 to 5.0 μm.
Suitably the thickness is of the order of 2.0 μm and the dye mixture in the carrier layer is present in an amount of 5 to 70% by weight, preferably 10 to 60% by weight of the weight of the carrier layer. .
【0016】上記の如き本発明の熱転写シートは、その
ままで熱転写用として十分に有用であるが、更にその染
料担持層表面に粘着防止層、即ち離型層を設けてもよ
く、この様な層を設けることにより、熱転写時における
熱転写シートと被転写材の粘着を防止し、更に高い熱転
写温度を使用し、一層優れた濃度の画像を形成すること
が出来る。この離型層としては、単に粘着防止性の無機
粉末を付着させたのみでも相当の効果を示し、更に、例
えば、シリコーンポリマー、アクリルポリマー、フッ素
化ポリマーの如き離型性に優れた樹脂から0.01〜5
μm、好ましくは0.05〜2μmの離型層を設けるこ
とによって形成することが出来る。尚、上記の如き無機
粉体或いは離型性ポリマーは染料担持層中に包含させて
も十分な効果を奏するものである。更に、この様な熱転
写シートの裏面に、サーマルヘッドの熱による悪影響を
防止する為に耐熱層を設けてもよい。The thermal transfer sheet of the present invention as described above is sufficiently useful as it is for thermal transfer, but an anti-adhesion layer, that is, a releasing layer may be further provided on the surface of the dye carrying layer. By providing the above, it is possible to prevent the thermal transfer sheet from sticking to the material to be transferred at the time of thermal transfer, use a higher thermal transfer temperature, and form an image with a more excellent density. As the release layer, even if only the adhesion-preventing inorganic powder is attached, a considerable effect is exhibited. Further, for example, from a resin having excellent release property such as a silicone polymer, an acrylic polymer or a fluorinated polymer, .01-5
It can be formed by providing a release layer having a thickness of μm, preferably 0.05 to 2 μm. Incidentally, the inorganic powder or the releasing polymer as described above has a sufficient effect even when incorporated in the dye carrying layer. Further, a heat-resistant layer may be provided on the back surface of such a thermal transfer sheet in order to prevent adverse effects due to the heat of the thermal head.
【0017】以上の如き熱転写シートを用いて、画像を
形成する為に使用する被転写材は、その記録面が前記の
染料に対して染料受容性を有するものであればいかなる
ものでもよく、又、染料受容性を有しない紙、金属、ガ
ラス、合成樹脂等である場合には、その少なくとも一方
の表面に染料受容層を形成すればよい。染料受容層を形
成しなくてもよい被転写材としては、例えば、ポリプロ
ピレン等のポリオレフィン系樹脂、ポリ塩化ビニル、ポ
リ塩化ビニリデン等のハロゲン化ポリマー、ポリ酢酸ビ
ニル、ポリアクリルエステル等のビニルポリマー、ポリ
エチレンテレフタレート、ポリブチレンテレフタレート
等のポリエステル系樹脂、ポリスチレン系樹脂、ポリア
ミド系樹脂、エチレンやプロピレン等のオレフィンと他
のビニルモノマーとの共重合体系樹脂、アイオノマー、
セルロースジアセテート等のセルロース系樹脂、ポリカ
ーボネート等からなる繊維、織布、フイルム、シート、
成形物等が挙げられる。The material to be transferred used for forming an image using the thermal transfer sheet as described above may be any material as long as its recording surface has dye receptivity to the above dye, or In the case of paper, metal, glass, synthetic resin or the like having no dye-receptive property, the dye-receptive layer may be formed on at least one surface thereof. The material to be transferred that does not need to form a dye receiving layer, for example, polyolefin resins such as polypropylene, polyvinyl chloride, halogenated polymers such as polyvinylidene chloride, polyvinyl acetate, vinyl polymers such as polyacrylic ester, Polyester resins such as polyethylene terephthalate and polybutylene terephthalate, polystyrene resins, polyamide resins, copolymer resins of olefins such as ethylene and propylene with other vinyl monomers, ionomers,
Cellulose resins such as cellulose diacetate, fibers made of polycarbonate, woven fabrics, films, sheets,
Examples include molded products.
【0018】特に好ましいものはポリエステルからなる
シート又はフイルム或いはポリエステル層を設けた加工
紙である。又、紙、金属、ガラスその他の非染着性の被
転写材であっても、その記録面に上記の如き染着性の樹
脂の溶液又は分散液を塗布及び乾燥させるか、或いはそ
れらの樹脂フイルムをラミネートすることにより、被転
写材とすることが出来る。更に、上記の染着性のある被
転写材であっても、その表面に更に染着性の良い樹脂か
ら、上記の紙の場合の如くして染料受容層を形成しても
よい。この様にして形成する染料受容層は、単独の材料
からでも、又、複数の材料から形成してもよく、更に所
期の目的を妨げない範囲で各種の添加剤を包含してもよ
いのは当然である。Particularly preferred is a polyester sheet or film or a processed paper provided with a polyester layer. Even for non-dyeing transfer materials such as paper, metal, glass, etc., a solution or dispersion of the dyeing resin as described above is applied to the recording surface and dried, or those resins are used. By laminating the film, a material to be transferred can be obtained. Further, even with the transfer material having the above dyeing property, a dye receiving layer may be formed on the surface of the material having a more dyeing property as in the case of the above paper. The dye-receptive layer thus formed may be formed of a single material or a plurality of materials, and may further contain various additives within the range not impairing the intended purpose. Is natural.
【0019】この様な染料受容層は任意の厚さでよい
が、一般的には3〜50μmの厚さである。又、この様
な染料受容層は連続被覆であるのが好ましいが、樹脂エ
マルジョンや樹脂分散液を使用して、不連続の被覆とし
て形成してもよい。この様な被転写材は基本的には上記
の如くで、そのままでも十分に使用することが出来るも
のであるが、上記被転写材又はその染料受容層中に、粘
着防止用の無機粉末を包含させることが出来、この様に
すれば熱転写時の温度をより高めても熱転写シートと被
転写材との粘着を防止して、更に優れた熱転写を行うこ
とが出来る。特に好ましいのは、微粉末のシリカであ
る。又、上記のシリカの如き無機粉末に代えて、又は併
用して、離型性の良好な前述の如き樹脂を添加してもよ
い。特に好ましい離型性ポリマーは、シリコーン化合物
の硬化物、例えば、エポキシ変性シリコーンオイルとア
ミノ変性シリコーンオイルからなる硬化物が挙げられ
る。この様な離型剤は、染料受容層の重量の約0.5〜
30重量%を占める割合が良い。Such a dye receiving layer may have any thickness, but is generally 3 to 50 .mu.m thick. Further, such a dye receiving layer is preferably a continuous coating, but it may be formed as a discontinuous coating by using a resin emulsion or a resin dispersion. Such a material to be transferred is basically as described above and can be sufficiently used as it is. However, the material to be transferred or the dye receiving layer thereof contains an inorganic powder for adhesion prevention. By doing so, even if the temperature at the time of thermal transfer is raised, the adhesion between the thermal transfer sheet and the transfer material can be prevented, and more excellent thermal transfer can be performed. Particularly preferred is finely divided silica. Further, in place of or in combination with the above-mentioned inorganic powder such as silica, the above-mentioned resin having good releasability may be added. Particularly preferable releasing polymer is a cured product of a silicone compound, for example, a cured product of an epoxy-modified silicone oil and an amino-modified silicone oil. Such a releasing agent is contained in an amount of about 0.5 to about the weight of the dye receiving layer.
A good proportion is 30% by weight.
【0020】又、使用する被転写材は、その染料受容層
の表面に、上記の如き無機粉体を付着させて粘着防止効
果を高めてもよいし、又、前述の如き離型性に優れた離
型剤からなる層を設けてもよい。この様な離型層は約
0.01〜5μmの厚さで十分な効果を発揮して、熱転
写シートの染料受容層との粘着を防止しつつ、一層染料
受容性を向上させることが出来る。上記の如き本発明の
熱転写シート及び上記の如き被記録材を使用して熱転写
を行う際に使用する熱エネルギーの付与手段は、従来公
知の付与手段がいずれも使用出来、例えば、サーマルプ
リンター(例えば、日立製、ビデオプリンターVY−1
00)等の記録装置によって、記録時間をコントロール
することにより、5〜100mJ/mm2程度の熱エネ
ルギーを付与することによって所期の目的を十分に達成
することが出来る。The material to be used for transfer may have the above-mentioned inorganic powder adhered to the surface of the dye-receiving layer to enhance the anti-adhesion effect, and it has excellent releasability as described above. A layer made of a releasing agent may be provided. Such a release layer exerts a sufficient effect with a thickness of about 0.01 to 5 μm, and can prevent the adhesion of the thermal transfer sheet to the dye receiving layer and further improve the dye receiving property. As the means for applying thermal energy used when performing thermal transfer using the thermal transfer sheet of the present invention as described above and the recording material as described above, any conventionally known applying means can be used, for example, a thermal printer (for example, , Hitachi, video printer VY-1
By controlling the recording time with a recording apparatus such as 00), thermal energy of about 5 to 100 mJ / mm 2 can be applied to sufficiently achieve the intended purpose.
【0021】[0021]
【実施例】次に実施例及び比較例を挙げて本発明を更に
具体的に説明する。尚、文中、部又は%とあるのは特に
断りの無い限り重量基準である。 実施例 下記組成の染料担持層形成用インキ組成物を調製し、背
面に耐熱処理を施した6μm厚のポリエチレンテレフタ
レートフイルムに、乾燥塗布量が1.0g/m2になる
様に塗布及び乾燥して後記表1の本発明の熱転写シート
を得た。 前記染料(I)と前記式1〜15の染料(II) 合計で3.0部 ポリビニルブチラール樹脂 4.5部 メチルエチルケトン 46.25部 トルエン 46.25部EXAMPLES Next, the present invention will be described more specifically with reference to Examples and Comparative Examples. In the text, parts and% are based on weight unless otherwise specified. Example A dye-carrying layer-forming ink composition having the following composition was prepared, and applied to a 6 μm-thick polyethylene terephthalate film having a heat-treated back surface so that the dry coating amount was 1.0 g / m 2 and dried. Thus, the thermal transfer sheet of the present invention shown in Table 1 below was obtained. The dye (I) and the dyes (II) of the formulas 1 to 15 in total 3.0 parts Polyvinyl butyral resin 4.5 parts Methyl ethyl ketone 46.25 parts Toluene 46.25 parts
【0022】但し、上記組成において染料混合物が上記
溶剤に不溶な場合には、溶媒としてDMF、ジオキサ
ン、クロロホルム等を適宜用いた。次に、基材シートと
して合成紙(王子油化製、ユポFPG#150)を用
い、この一方の面に下記の組成の塗工液を乾燥時10.
0g/m2になる割合で塗布し、100℃で30分間乾
燥して被転写材を得た。 ポリエステル樹脂(Vylon200、東洋紡製) 11.5部 塩化ビニル・酢酸ビニル共重合体(VYHH、UCC製) 5.0部 アミノ変性シリコーン(KF−393、信越化学工業製) 1.2部 エポキシ変性シリーコーン(X−22−343、信越化学工業製) 1.2部 メチルエチルケトン/トルエン/シクロヘキサノン(重量比4:4:2) 102.0部However, when the dye mixture in the above composition is insoluble in the above solvent, DMF, dioxane, chloroform or the like was appropriately used as the solvent. Next, a synthetic paper (Yupo FPG # 150, manufactured by Oji Yuka) was used as a base sheet, and a coating solution having the following composition was dried on one surface of the synthetic paper 10.
The transfer material was applied at a rate of 0 g / m 2 and dried at 100 ° C. for 30 minutes to obtain a transfer material. Polyester resin (Vylon200, Toyobo) 11.5 parts Vinyl chloride / vinyl acetate copolymer (VYHH, UCC) 5.0 parts Amino-modified silicone (KF-393, Shin-Etsu Chemical Co., Ltd.) 1.2 parts Epoxy-modified Silly Corn (X-22-343, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.2 parts Methyl ethyl ketone / toluene / cyclohexanone (weight ratio 4: 4: 2) 102.0 parts
【0023】前記の本発明の熱転写シートと上記の被転
写材とを、夫々の染料担持層と染料受容面とを対向させ
て重ね合せ、熱転写シートの裏面からヘッド印加電圧1
0V、印字時間4.0msec.の条件でサーマルヘッ
ドで記録を行い、下記表1の結果を得た。The above-mentioned thermal transfer sheet of the present invention and the above-mentioned material to be transferred are superposed with their dye carrying layers and dye receiving surfaces facing each other, and the head applied voltage 1 is applied from the back surface of the thermal transfer sheet.
0 V, printing time 4.0 msec. Recording was performed with a thermal head under the conditions of, and the results shown in Table 1 below were obtained.
【0024】[0024]
【表1】 上記表1における混合比は重量基準である。又、混合染
料の色相はいずれもシアン色である。[Table 1] The mixing ratio in Table 1 above is based on weight. Further, the hues of the mixed dyes are all cyan.
【0025】比較例 実施例における染料に代えて下記表2の染料を使用し、
他は実施例と同様にして下記表2の結果を得た。Comparative Example The dyes shown in Table 2 below were used in place of the dyes in the examples,
Others were the same as in the example, and the results shown in Table 2 below were obtained.
【表2】 [Table 2]
【0026】[0026]
【化9】 尚、前記における発色濃度は米国マクベス社製のデンシ
トメーターRD−918で測定した値である。堅牢度は
記録画像を50℃の雰囲気中に長時間放置した後、画像
のシャープさが変化せず、又、表面を白紙で摩擦しても
白紙が着色しないものを◎とし、僅かにシャープさが失
なわれ且つ僅かに白紙が着色したものを○とし、シャー
プさが失なわれ、白紙が着色したものを△とし、画像が
不鮮明となり、白紙が著しく着色したものを×で表示し
た[Chemical 9] The color density in the above is a value measured by a densitometer RD-918 manufactured by Macbeth Co., USA. The fastness is ◎ when the recorded image is left in an atmosphere of 50 ° C. for a long time and the sharpness of the image does not change, and the white paper is not colored even if the surface is rubbed with a white paper. Was marked and the white paper was slightly colored, and the sharpness was lost, and the white paper was colored, and the image was unclear, and the white paper was marked by X.
【0027】[0027]
【効果】以上の如き本発明によれば、熱転写シートの染
料として特定の染料混合物を使用することによって、高
濃度で鮮明な画像が形成され、特にこれらの画像は優れ
た耐ブリード性、耐汚染性を有するので画像を長期間保
存しても画像のシャープさが低下したり、他の物品と接
触してもそれらを汚染することがなく、従来技術の種々
の問題が解決された。[Effects] According to the present invention as described above, by using a specific dye mixture as a dye of a thermal transfer sheet, a clear image with high density can be formed, and particularly these images have excellent bleeding resistance and stain resistance. Therefore, the sharpness of the image is not deteriorated even if the image is stored for a long period of time, and even if it comes into contact with other articles, they are not contaminated, and various problems of the prior art have been solved.
Claims (2)
に形成された染料担持層からなり、該染料担持層に包含
される染料が、下記式(I)で表される染料と下記式1
〜15で表される少なくとも1種の昇華性染料との混合
物であることを特徴とする熱転写シート。 【化1】 【化2】 【化3】 【化4】 1. A base sheet and a dye carrying layer formed on one surface of the base sheet, wherein the dye contained in the dye carrying layer is a dye represented by the following formula (I) Formula 1
A thermal transfer sheet characterized by being a mixture with at least one sublimable dye represented by [Chemical 1] [Chemical 2] [Chemical 3] [Chemical 4]
少なくとも1種の昇華性染料との混合比が15:85〜
85:15の重量比である請求項1に記載の熱転写シー
ト。2. The mixing ratio of the dye of the formula (I) and at least one sublimable dye of the formulas 1 to 15 is 15:85.
The thermal transfer sheet according to claim 1, having a weight ratio of 85:15.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63226426A JPH0641673B2 (en) | 1988-09-12 | 1988-09-12 | Thermal transfer sheet |
JP5029645A JPH0811467B2 (en) | 1988-09-12 | 1993-01-27 | Thermal transfer sheet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63226426A JPH0641673B2 (en) | 1988-09-12 | 1988-09-12 | Thermal transfer sheet |
JP5029645A JPH0811467B2 (en) | 1988-09-12 | 1993-01-27 | Thermal transfer sheet |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63226426A Division JPH0641673B2 (en) | 1988-09-12 | 1988-09-12 | Thermal transfer sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0679976A true JPH0679976A (en) | 1994-03-22 |
JPH0811467B2 JPH0811467B2 (en) | 1996-02-07 |
Family
ID=26367870
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63226426A Expired - Lifetime JPH0641673B2 (en) | 1988-09-12 | 1988-09-12 | Thermal transfer sheet |
JP5029645A Expired - Lifetime JPH0811467B2 (en) | 1988-09-12 | 1993-01-27 | Thermal transfer sheet |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63226426A Expired - Lifetime JPH0641673B2 (en) | 1988-09-12 | 1988-09-12 | Thermal transfer sheet |
Country Status (1)
Country | Link |
---|---|
JP (2) | JPH0641673B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021030444A (en) * | 2019-08-13 | 2021-03-01 | 凸版印刷株式会社 | Heat transfer sheet |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2593778B2 (en) * | 1993-01-27 | 1997-03-26 | 大日本印刷株式会社 | Thermal transfer sheet |
JP5204418B2 (en) * | 2007-03-30 | 2013-06-05 | 富士フイルム株式会社 | Indian aniline dye, thermal transfer recording ink sheet, thermal transfer recording method, color toner, inkjet ink, and color filter |
JP2009137281A (en) | 2007-11-12 | 2009-06-25 | Fujifilm Corp | Heat-sensitive transfer sheet and heat-sensitive transfer recording method using the same |
US8061683B2 (en) * | 2009-03-30 | 2011-11-22 | Fisher Controls International, Llc | Manual valve operators having a lockout device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60239289A (en) * | 1984-05-11 | 1985-11-28 | Mitsubishi Chem Ind Ltd | Indophenol coloring matter for thermal transfer recording |
JPS6135994A (en) * | 1984-07-30 | 1986-02-20 | Mitsubishi Chem Ind Ltd | Dye for thermal transfer recording |
JP2880160B2 (en) * | 1986-03-28 | 1999-04-05 | 大日本印刷株式会社 | Dye and thermal transfer sheet using the dye |
JPS63199687A (en) * | 1987-02-16 | 1988-08-18 | Matsushita Electric Ind Co Ltd | Transfer material for thermal transfer recording |
-
1988
- 1988-09-12 JP JP63226426A patent/JPH0641673B2/en not_active Expired - Lifetime
-
1993
- 1993-01-27 JP JP5029645A patent/JPH0811467B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021030444A (en) * | 2019-08-13 | 2021-03-01 | 凸版印刷株式会社 | Heat transfer sheet |
Also Published As
Publication number | Publication date |
---|---|
JPH0641673B2 (en) | 1994-06-01 |
JPH0811467B2 (en) | 1996-02-07 |
JPH0274683A (en) | 1990-03-14 |
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