JPH03264393A - Thermal transfer sheet - Google Patents
Thermal transfer sheetInfo
- Publication number
- JPH03264393A JPH03264393A JP2062721A JP6272190A JPH03264393A JP H03264393 A JPH03264393 A JP H03264393A JP 2062721 A JP2062721 A JP 2062721A JP 6272190 A JP6272190 A JP 6272190A JP H03264393 A JPH03264393 A JP H03264393A
- Authority
- JP
- Japan
- Prior art keywords
- dye
- thermal transfer
- binder
- transfer sheet
- film
- 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
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 13
- 238000006467 substitution reaction Methods 0.000 claims abstract description 8
- 230000021736 acetylation Effects 0.000 claims description 11
- 238000006640 acetylation reaction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 13
- 238000007639 printing Methods 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 5
- 229920006267 polyester film Polymers 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000003960 organic solvent Substances 0.000 abstract description 3
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 4
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 48
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 6
- 239000000123 paper Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- QOSTVEDABRQTSU-UHFFFAOYSA-N 1,4-bis(methylamino)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(NC)=CC=C2NC QOSTVEDABRQTSU-UHFFFAOYSA-N 0.000 description 1
- NQAJBKZEQYYFGK-UHFFFAOYSA-N 2-[[4-[2-(4-cyclohexylphenoxy)ethyl-ethylamino]-2-methylphenyl]methylidene]propanedinitrile Chemical compound C=1C=C(C=C(C#N)C#N)C(C)=CC=1N(CC)CCOC(C=C1)=CC=C1C1CCCCC1 NQAJBKZEQYYFGK-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 101000957559 Homo sapiens Matrin-3 Proteins 0.000 description 1
- 102100038645 Matrin-3 Human genes 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は熱転写シートに関し、更に詳しくは昇華性染料
（熱移行性染料）を用いた熱転写方式に有用であり、長
期保存後であっても熱転写時の染料移行性に優れ、高濃
度画像を与えることが出来る熱転写シートの提供を目的
とする。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a thermal transfer sheet, and more specifically, it is useful for a thermal transfer method using sublimable dyes (thermally transferable dyes), and is useful even after long-term storage. The purpose of the present invention is to provide a thermal transfer sheet that has excellent dye transfer properties during thermal transfer and can provide high-density images.
（従来の技術及びその問題点）
従来の一般的印字方法や印刷方法に代えて、優れたモノ
カラー或いはフルカラー画像を簡便且つ高速に与える方
法として、インクジェット方式や熱転写方式等が開発さ
れているが、これらの中では、優れた連続階調性を有し
、カラー写真に匹敵するフルカラー画像を与えるものと
して昇華性染料を用いた、いわゆる昇華熱転写方式が最
も優れている。(Prior art and its problems) Inkjet methods, thermal transfer methods, etc. have been developed as methods for providing excellent monochrome or full-color images simply and at high speed in place of conventional general printing methods. Among these, the so-called sublimation thermal transfer method, which uses sublimable dyes, is the most excellent as it has excellent continuous gradation properties and provides full-color images comparable to color photographs.
上記の昇華型熱転写方式で使用する熱転写シートは、ポ
リエステルフィルム等の基材フィルムの一方の面に昇華
性染料とバインダーとからなる染料層を形成し、他方、
サーマルヘッドの粘着を防止する為に基材フィルムの他
の面に耐熱層を設けたものが一般に用いられている。The thermal transfer sheet used in the above-mentioned sublimation type thermal transfer method has a dye layer consisting of a sublimable dye and a binder formed on one side of a base film such as a polyester film, and
In order to prevent the thermal head from sticking, a base film with a heat-resistant layer provided on the other side is generally used.
この様な熱転写シートの染料層面をポリエステル樹脂等
からなる受像層を有する被転写材に重ね、熱転写シート
の背面からサーマルヘッドにより画像状に加熱すること
によって、染料層中の染料が被転写材に移行して所望の
画像が形成される。The dye layer surface of such a thermal transfer sheet is placed on a transfer material having an image-receiving layer made of polyester resin, etc., and the dye in the dye layer is transferred to the transfer material by heating it in an imagewise manner from the back side of the thermal transfer sheet with a thermal head. The desired image is formed.
以上の如き熱転写方式においては、染料層中から染料の
みが被転写材に移行し、バインダーは基材フィルム側に
残る。この際、染料の移行性が良好である程、鮮明且つ
高濃度の画像が形成される。In the thermal transfer method as described above, only the dye in the dye layer is transferred to the transferred material, and the binder remains on the base film side. At this time, the better the transferability of the dye, the clearer and higher density the image will be formed.
しかしながら、従来の熱転写シートの場合には、製造直
後は良好な染料の移行性を示すものの、時間経過と共に
染料の移行性が低下し、十分な濃度の画像が形成出来な
いという問題がある。この様な場合、染料の移行性を良
好にする方法としては、印字エネルギーを大にすること
が最も簡単であるが、高い印字エネルギーは説明するま
でもなく印字コストが高くなり望ましくなく、又、基材
フィルムとしてプラスチックフィルムを用いる場合には
自ら印字エネルギーには限界がある。However, in the case of conventional thermal transfer sheets, although they exhibit good dye transfer properties immediately after production, there is a problem in that the dye transfer properties deteriorate over time, making it impossible to form images of sufficient density. In such cases, the easiest way to improve dye migration is to increase the printing energy, but needless to say, high printing energy increases printing costs and is undesirable. When a plastic film is used as a base film, there is a limit to its printing energy.
従って本発明の目的は、上記従来技術の問題を解決し、
長期間保存後であっても低い印字エネルギーで高濃度画
像を形成することが出来る熱転写シートを提供すること
である。Therefore, it is an object of the present invention to solve the above-mentioned problems of the prior art,
To provide a thermal transfer sheet capable of forming a high-density image with low printing energy even after long-term storage.
（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。(Means for solving problems) The above objects are achieved by the present invention as described below.
即ち、本発明は、基材フィルム上に染料とバインダーと
からなる染料層を設けた熱転写シートにおいて、上記バ
インダーがアセチル化度が２．４以上且つ総置換度が２
．７以上の酢酸セルロースであることを特徴とする熱転
写シートである。That is, the present invention provides a thermal transfer sheet in which a dye layer consisting of a dye and a binder is provided on a base film, in which the binder has a degree of acetylation of 2.4 or more and a total degree of substitution of 2.
．． This is a thermal transfer sheet characterized by being made of cellulose acetate of 7 or more.
（作 用）
アセチル化度が２．４以上であり且つ総置換度が２．７
以上である酢酸セルロースをバインダーとして使用する
ことによって、長期保存後であっても染料の析出がなく
、低い印字エネルギーでも高濃度画像を形成することが
出来る。(Function) The degree of acetylation is 2.4 or more and the total degree of substitution is 2.7.
By using the above-mentioned cellulose acetate as a binder, there is no precipitation of dye even after long-term storage, and a high-density image can be formed even with low printing energy.
（好ましい実施態様）
次に本発明を好ましい実施態様を挙げて更に詳しく説明
する。(Preferred Embodiments) Next, the present invention will be described in more detail by citing preferred embodiments.
本発明の熱転写シートは、基本的には従来技術と同様に
、基材フィルム上に染料層を形成してなるものであるが
、該染料層を構成するバインダーとしてアセチル化度を
２．４以上であり且つ総置換度が２，７以上である酢酸
セルロースを使用したことを特徴としている。The thermal transfer sheet of the present invention is basically formed by forming a dye layer on a base film as in the prior art, but the binder constituting the dye layer has a degree of acetylation of 2.4 or more. It is characterized by using cellulose acetate having a total degree of substitution of 2.7 or more.
以上の様な本発明の熱転写シートの基材フィルムとして
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、０．５〜５．０
部ｍ、好ましくは３〜１０μｍ程度の厚さの紙、各種加
工紙、ポリエステルフィルム、ポリスチレンフィルム、
ポリプロピレンフィルム、ポリサルホンフィルム、アラ
ミドフィルム、ポリカーボネートフィルム、ポリビニル
アルコールフィルム、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ィルムである。これらの基材フ
ィルムは枚葉式であってもよいし、連続フィルムであっ
てもよく特に限定されない。The base film of the thermal transfer sheet of the present invention as described above may be any film as long as it has a certain degree of heat resistance and strength, for example, 0.5 to 5.0.
Part m, preferably paper with a thickness of about 3 to 10 μm, various processed papers, polyester films, polystyrene films,
Examples include polypropylene film, polysulfone film, aramid film, polycarbonate film, polyvinyl alcohol film, cellophane, etc., and polyester film is particularly preferred. These base films may be sheet-fed or continuous films, and are not particularly limited.
これらの中で特に好ましいものは、予め表面が易接着性
処理されたポリエチレンテレフタレートフィルムである
。Particularly preferred among these is a polyethylene terephthalate film whose surface has been previously treated to make it more adhesive.
染料層に使用する染料としては、従来公知の熱転写シー
トに使用されている染料はいずれも本発明に有効に使用
可能であり特に限定されない。例えば、幾つかの好まし
い染料としては、赤色染料として、ＭＳ Ｒｅｄ Ｇ、
Ｍａｃｒｏｌｅｘ Ｒｅｄ Ｖｉｏｌｅｔ Ｒ１Ｃｅ
ｒｅｓＲｅｄ７Ｂ、Ｓａｍａｒｏｎ Ｒｅｄ ＨＢＳ
Ｌ、Ｒｅ５ｏｌｉｎ ＲｅｄＦ３ＢＳ等が挙げられ、
又、黄色の染料としては、ホロンブリリアントイエロー
６ＧＬ、 ＰＴＹ−５２、マクロレックスイエロー６Ｇ
等が挙げられ、又、青色染料としては、カヤセットブル
ーフ１４、 ワクソリンブルーＡＰ−ＦＷ、ホロンブリ
リアントブルーＳ−Ｒ，ＭＳブルー１００等が挙げられ
る。The dye used in the dye layer is not particularly limited, as any dye used in conventionally known thermal transfer sheets can be effectively used in the present invention. For example, some preferred dyes include MS Red G, as a red dye;
Macrolex Red Violet R1Ce
resRed7B, Samaron Red HBS
L, Re5olin RedF3BS, etc.
In addition, as yellow dyes, Holon Brilliant Yellow 6GL, PTY-52, Macrolex Yellow 6G
Examples of blue dyes include Kayacet Blue 14, Waxolin Blue AP-FW, Holon Brilliant Blue S-R, and MS Blue 100.
上記の如き染料を担持する為のバインダー樹脂としては
酢酸セルロースを使用する。酢酸セルロースとはセルロ
ースの無水グルコース単位の３個の水酸基の１部又は全
部を酢酸基で置換したものであり、本発明で特に好まし
い例はアセチル化度が２．４以上であり且つ総置換度が
２７以上である酢酸セルロースである。アセチル化度が
２．４未満であると、染料とバインダー樹脂との相溶性
が低下して染料が結晶化し染料の移行性が低下する。又
、製造直後の染料層の染料が溶解していても、時間経過
と共に染料が析出して、染料の移行性が低下し、又、表
面に析出した染料によって熱転写時に被転写材の地汚れ
が発生する。Cellulose acetate is used as a binder resin to support the above dyes. Cellulose acetate is cellulose in which part or all of the three hydroxyl groups of anhydroglucose units are substituted with acetic acid groups, and particularly preferred examples in the present invention have a degree of acetylation of 2.4 or more and a total degree of substitution. is 27 or more. If the degree of acetylation is less than 2.4, the compatibility between the dye and the binder resin decreases, the dye crystallizes, and the transferability of the dye decreases. In addition, even if the dye in the dye layer is dissolved immediately after production, the dye will precipitate over time, reducing the transferability of the dye, and the dye precipitated on the surface may cause background stains on the transfer material during thermal transfer. Occur.
又、総置換度が２．７未満であると同様な問題が発生す
る。アセチル基以外の置換基としては、特にウレタン化
が好ましく、例えば、芳香族や脂肪族のモノイソシアネ
ートで残る水酸基をウレタン化することが好ましい。Further, when the total degree of substitution is less than 2.7, similar problems occur. As the substituent other than the acetyl group, urethanization is particularly preferable. For example, it is preferable to urethanize the remaining hydroxyl group in an aromatic or aliphatic monoisocyanate.
本発明の熱転写シートは、前記の基材フィルムの少なく
とも一方の面に、以上の如き染料及びバインダーに必要
な添加剤、例えば、離型剤等を加えたものを、適当な有
機溶剤に溶解したり或いは有機溶剤や水に分散した分散
体を、例えば、グラビア印刷法、スクリーン印刷法、グ
ラビア版を用いたリバースロールコーティング法等の形
成手段により塗布及び乾燥して染料層を形成することに
よって得られる。The thermal transfer sheet of the present invention is prepared by dissolving the above-mentioned dye and binder on at least one side of the base film, with necessary additives such as a release agent added thereto, in a suitable organic solvent. Alternatively, a dye layer can be formed by coating and drying a dispersion in an organic solvent or water using a forming method such as a gravure printing method, a screen printing method, or a reverse roll coating method using a gravure plate. It will be done.
この様にして形成する染料層は０．２〜５．０μｍ、好
ましくは０．４〜２．ＯｔＬｍ程度の厚さであり、又、
染料層中の昇華性染料は、染料層の重量の５〜９０重量
％、好ましくは１０〜７０重量％の量で存在するのが好
適である。The dye layer formed in this way has a thickness of 0.2 to 5.0 μm, preferably 0.4 to 2.0 μm. The thickness is about OtLm, and
The sublimable dye in the dye layer is suitably present in an amount of 5 to 90% by weight, preferably 10 to 70% by weight of the dye layer.
形成する染料層は所望の画像がモノカラーである場合は
前記染料のうちから１色を選んで形成し、又、所望の画
像がフルカラー画像である場合には、例えば、適当なシ
アン、マゼンタ及びイエロー（更に必要に応じてブラッ
ク）を選択して、イエロー、マゼンタ及びシアン（更に
必要に応じてブラック）の染料層を形成する。When the desired image is a monochrome image, the dye layer to be formed is formed by selecting one color from among the dyes mentioned above, and when the desired image is a full color image, it is formed by selecting an appropriate dye layer such as cyan, magenta, and the like. Select yellow (and black if necessary) to form yellow, magenta, and cyan (further black if necessary) dye layers.
上記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。The transfer material used to form 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-mentioned dyes. If the material is paper, metal, glass, synthetic resin, etc. that does not have any properties, a dye-receiving layer may be formed on at least one surface thereof.
上記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−１００）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、５〜１００ ｍ Ｊ ／
ｍ ｒｒ？程度の熱エネルギーを付与することによって
、所望の画像が形成される。The means for applying thermal energy used when performing thermal transfer using the above-mentioned thermal transfer sheet and the above-mentioned recording material are as follows:
Any conventionally known application means can be used, for example, by controlling the recording time with a recording device such as a thermal printer (e.g. Video Printer VY-100 manufactured by Hitachi), it is possible to apply an amount of 5 to 100 mJ/
mrr? By applying a certain amount of thermal energy, the desired image is formed.
（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。(Example) Next, the present invention will be explained in more detail by giving examples and comparative examples. In the text, parts or percentages are based on weight unless otherwise specified.
実施例１
基材フィルムとして染料層を形成する面の背面に耐熱滑
性処理を施した６μｍ厚のポリエチレンテレフタレート
フィルムの面に、下記の染料層形成用インキ組成物を乾
燥時厚みが１．０ｇ／ｒｒｒになる様にグラビア印刷に
て塗布及び乾燥して連続フィルム状の本発明の熱転写シ
ートを調製した。Example 1 The following ink composition for forming a dye layer was applied to the surface of a 6 μm thick polyethylene terephthalate film, which had undergone heat-resistant slipping treatment on the back side of the surface on which the dye layer was to be formed, as a base film, to a dry thickness of 1.0 g. The thermal transfer sheet of the present invention in the form of a continuous film was prepared by coating and drying by gravure printing so as to give /rrr.
・ 〉 インキ
下記構造の染料Ｉ ５．５０部酢酸セ
ルロース（アセチル化度２．７５、総置換度２．７５）
３．００部塩化メチレン
８１．５０部エタノール
９，００部構造式
実施例１におけるバインダーとしてアセチル化度２．９
０及び総置感度２．９０の酢酸セルロースを使用し、他
は実施例１と同様にして本発明の熱転写シートを得た。・> Ink Dye I with the following structure 5.50 parts Cellulose acetate (degree of acetylation 2.75, total degree of substitution 2.75)
3.00 parts methylene chloride
81.50 parts ethanol
9,00 parts Acetylation degree 2.9 as binder in structural formula Example 1
A thermal transfer sheet of the present invention was obtained in the same manner as in Example 1 except that cellulose acetate having a total sensitivity of 0 and a total sensitivity of 2.90 was used.
実施例３
実施例１におルするバインダーとしてアセチル化度２．
４０及び総置感度２．８０（フェニルウレタン化度０．
４）の酢酸セルロースを使用し、他は実施例１と同様に
して本発明の熱転写シートを得た。Example 3 As a binder used in Example 1, the degree of acetylation was 2.
40 and overall sensitivity 2.80 (degree of phenylurethanization 0.
A thermal transfer sheet of the present invention was obtained in the same manner as in Example 1 except that cellulose acetate (4) was used.
実施例４
実施例１におけるバインダーとしてアセチル化度２．６
０及び総置感度２．９０ （エチルウレタン化度０．３
）の酢酸セルロースを使用し、他は実施例１と同様にし
て本発明の熱転写シートを得た。Example 4 Acetylation degree 2.6 as binder in Example 1
0 and overall sensitivity 2.90 (degree of ethyl urethanization 0.3
A thermal transfer sheet of the present invention was obtained in the same manner as in Example 1 except that cellulose acetate of ) was used.
比較例１
実施例１におけるバインダーとしてアセチル化度２．４
０及び総置感度２，４０の酢酸セルロースを使用し、他
は実施例１と同様にして比較例の熱転写シートを得た。Comparative Example 1 Acetylation degree 2.4 as binder in Example 1
A thermal transfer sheet of a comparative example was obtained in the same manner as in Example 1 except that cellulose acetate having a total sensitivity of 0 and a total sensitivity of 2.40 was used.
比較例２
実施例１におけるバインダーとしてポリビニルブチラー
ル樹脂（エスレツクＢＸ−１，積水化学■製を使用し、
他は実施例１と同様にして比較例の熱転写シートを得た
。Comparative Example 2 Polyvinyl butyral resin (Eslec BX-1, manufactured by Sekisui Chemical ■) was used as the binder in Example 1,
Otherwise, a thermal transfer sheet of a comparative example was obtained in the same manner as in Example 1.
次に基材フィルムとして合成紙（玉子油化■製、ユボＦ
ＰＧ１５０）を用い、この一方の面に下記の組成の塗工
液を乾燥時４．５ｇ／ｒｒｒになる割合で塗布し、８０
℃で１０分間乾燥して本発明及び比較例で使用する熱転
写受像シートを得た。Next, synthetic paper (manufactured by Tamago Yuka ■, Yubo F) was used as a base film.
PG150), apply a coating liquid with the following composition to one side at a rate of 4.5 g/rrr when dry, and
It was dried for 10 minutes at °C to obtain thermal transfer image-receiving sheets used in the present invention and comparative examples.
・μ六 °エ
ポリエステル樹脂（東洋紡■製、Ｖｙｌｏｎ６００）塩
化ビニル−酢酸ビニル共重合体（電気化学工業■製、＃
１０００Ａ） ６．０部アミノ変性
シリコーンオイル（信越化学工業■製、Ｘ−２２−３０
５０Ｃ） ０．２部エポキシ変性シ
リコーンオイル（信越化学工業製、Ｘ−２２−３０００
ＥＩ ０．２部メチルエチルケトン
４４．８部トルエン
４４．８部慇転互藍慧
前記実施例及び比較例の熱転写シートを所定期間保存後
、上記被転写材の受像層と対向させて重ね合わせ、熱転
写シートの背面からサーマルヘッド（ＫＭＴ−８５−６
、ＭＰＤ２）を用いて、ヘッド印加電圧１２、ＯＶ、印
加パルス幅１６ 、０ｍ５ｅｃ、／１ｉｎｅから１ ｍ
５ｅｃ、毎に順次減少させるステップパターン、副走査
方向６ドツト／ ｍｍ （３３，３ｍ５ｅｃ、 ／１ｉ
ｎｅ）の条件でサーマルヘッド記録を行って下記第１表
の結果を得た。・μ6 ° Epolyester resin (manufactured by Toyobo ■, Vylon600) Vinyl chloride-vinyl acetate copolymer (manufactured by Denki Kagaku Kogyo ■, #
1000A) 6.0 parts Amino-modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., X-22-30
50C) 0.2 parts epoxy modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., X-22-3000
EI 0.2 parts Methyl ethyl ketone 44.8 parts Toluene
After storing the thermal transfer sheets of the above Examples and Comparative Examples for a predetermined period of time, they were stacked facing the image receiving layer of the transfer material, and a thermal head (KMT-85- 6
, MPD2), head applied voltage 12, OV, applied pulse width 16, 0 m5ec, 1 m from /1ine.
Step pattern that decreases sequentially every 5ec, 6 dots/mm in the sub-scanning direction (33,3m5ec, /1i
Thermal head recording was performed under the conditions of ne), and the results shown in Table 1 below were obtained.
（以下余白）
とによって、長期保存後であっても染料の析出がなく、
低い印字エネルギーでも高濃度画像を形成することが出
来る。(see margin below), there is no precipitation of dye even after long-term storage.
High density images can be formed even with low printing energy.
Claims (1)
料層を設けた熱転写シートにおいて、上記バインダーが
アセチル化度が２．４以上且つ総置換度が２．７以上の
酢酸セルロースであることを特徴とする熱転写シート。(1) In a thermal transfer sheet in which a dye layer consisting of a dye and a binder is provided on a base film, the binder is cellulose acetate with a degree of acetylation of 2.4 or more and a total degree of substitution of 2.7 or more. Features thermal transfer sheet.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062721A JP3009048B2 (en) | 1990-03-15 | 1990-03-15 | Thermal transfer sheet |
| US07/667,315 US5252532A (en) | 1990-03-15 | 1991-03-12 | Heat transfer sheet |
| US08/085,915 US5418210A (en) | 1990-03-15 | 1993-07-06 | Heat transfer sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062721A JP3009048B2 (en) | 1990-03-15 | 1990-03-15 | Thermal transfer sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03264393A true JPH03264393A (en) | 1991-11-25 |
| JP3009048B2 JP3009048B2 (en) | 2000-02-14 |
Family
ID=13208500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2062721A Expired - Fee Related JP3009048B2 (en) | 1990-03-15 | 1990-03-15 | Thermal transfer sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3009048B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2082891A2 (en) | 2008-01-16 | 2009-07-29 | Sony Corporation | Thermal transfer recording medium |
-
1990
- 1990-03-15 JP JP2062721A patent/JP3009048B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2082891A2 (en) | 2008-01-16 | 2009-07-29 | Sony Corporation | Thermal transfer recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3009048B2 (en) | 2000-02-14 |
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