JPH0515197B2 - - Google Patents
Info
- Publication number
- JPH0515197B2 JPH0515197B2 JP60068694A JP6869485A JPH0515197B2 JP H0515197 B2 JPH0515197 B2 JP H0515197B2 JP 60068694 A JP60068694 A JP 60068694A JP 6869485 A JP6869485 A JP 6869485A JP H0515197 B2 JPH0515197 B2 JP H0515197B2
- Authority
- JP
- Japan
- Prior art keywords
- dye
- recording
- ink
- transfer
- transfer sheet
- 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
- 239000000975 dye Substances 0.000 claims description 20
- 239000001000 anthraquinone dye Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 238000004040 coloring Methods 0.000 claims 1
- 239000000976 ink Substances 0.000 description 21
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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
- B41M5/3852—Anthraquinone or naphthoquinone dyes
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
発明の目的
(イ) 産業上の利用分野
本発明は、昇華型感熱転写記録に使用される色
素に関する。
(ロ) 従来の技術
従来、フアクシミリプリンター、複写機あるい
は、テレビ画像等をカラー記録する技術が要望さ
れ、電子写真、インクジエツト、感熱転写等によ
るカラー記録技術が検討されている。
感熱転写記録方式は、装置の保守や操作が容易
で、装置や消耗品が安価であるため、他の方法に
比べ有利と考えられる。
感熱転写方式には、ベースフイルム上に熱溶融
性インク層を形成させた転写シートを、感熱ヘツ
ドにより加熱して、該インクを溶融し、被記録体
上に転写記録する溶融方式と、ベースフイルム上
に昇華性色素を含有するインク層を形成させた転
写シートを、感熱ヘツドにより加熱して色素を昇
華させ、被記録体上に転写記録する昇華方式とが
あるが、昇華方式は感熱ヘツドに与えるエネルギ
ーを変えることにより色素の昇華転写量を制御す
ることができるので、階調記録が容易となり、フ
ルカラー記録には特に有利と考えられる。
(ハ) 発明が解決しようとする問題点
上記の目的に使用される転写シートは高濃度に
均一に転写記録ができ、耐摩擦堅牢性が良好であ
ることが要求される。すなわち、均一に転写され
ないと画像に濃度ムラを生じ、しかも耐摩擦堅牢
性が劣ると画像部分以外で記録していない部分に
も余分の染料の発色が起こり、いわゆる地汚れの
現象がおき、画像全体の品質を低下させることに
なるからである。
これらの地汚れ現象は、染料が溶解や乾燥に際
し再結晶をおこす結果、粗大な結晶を形成した
り、あるいは溶解に際し、完全に溶解せず、粗大
な結晶のまま残存しているためにおきるものと考
えられる。
発明の構成
(イ) 問題点を解決するための手段
すなわち、本発明は、下記一般式〔〕
(式中、RはC2〜C10のアルキル基、C2〜C10のア
ルコキシ基、トリフルオロメチル基を表わす)
で示される感熱転写記録用アントラキノン系色素
をその要旨とするものである。
これら、本発明のアントラキノン系色素の製造
方法としては、たとえば、下記構造式〔〕
で示される化合物と下記一般式〔〕
(式中、Rは前記定義に同じ)
で示されるフエノール類とを極性溶媒中脱酸剤の
存在下加熱することにより得られる。
特に好ましいものとしては、前記一般式〔〕
においてRがC2〜C10のアルキル基、C2〜C6のア
ルコキシ基で示される色素が挙げられる。
本発明の色素を本記録方式に適用する場合、色
素を結着剤とともに媒体中に溶解させることによ
りインクを調製し、該インクをベースフイルム上
に塗布、乾燥し転写シートを作製する必要があ
る。
インク調製のための結着剤としては、セルロー
ス系、アクリル酸系、デンプン系などの水溶性樹
脂、アクリル樹脂、メタクリル樹脂、ポリスチレ
ン、ポリカーボネート、ポリスルホン、ポリエー
テルスルホン、エチルセルロースなどの有機溶剤
に可溶性の樹脂などを挙げることができる。
インク調製のための媒体としては、トルエン、
キシレン、クロロベンゼンなどの芳香族類、酢酸
エチル、酢酸ブチルなどのエステル類、アセト
ン、メチルエチルケトン、メチルイソブチルケト
ン、シクロヘキサノンなどのケトン類、塩化メチ
レン、クロロホルム、トリクロロエチレンなどの
塩素系溶剤、テトラヒドロフラン、ジオキサンな
どのエーテル類、N,N−ジメチルホルムアミ
ド、N−メチルピロリドンなどの有機溶剤を挙げ
ることができる。
転写シート作製のためのインクを塗布するベー
スフイルムとしては、コンデンサー紙、グラシン
紙のような薄葉紙、ポリエステル、ポリアミド、
ポリイミドのような耐熱性の良好なプラスチツク
のフイルムが適しているが、それらの厚さとして
は3〜50μmの範囲を挙げることができる。
インクをベースフイルムに塗布する方法として
は、リバースロールコーター、グラビアコータ
ー、ロツドコーター、エアドクタコーターなどを
使用して実施することができ、インキの塗布層の
厚さは乾燥後0.1〜5μmの範囲となるよう塗布す
れば良い(原崎勇次著、槙書店1979年発行「コー
テイング方式」)。
発明の作用及び効果
本発明の前記〔〕で示されるアントラキノン
系色素は、鮮明なマゼンタ色を有するため、適当
なイエロー色およびシアン色と組み合せることに
より色再現性の良好なフルカラー記録を得るのに
適している。特に、熱、光、湿気、薬品などに対
して安定であるため、転写記録中に熱分解するこ
となく、得られた記録の保存安定性も優れてい
る。又、本発明の色素は、特に、有機溶剤に対す
る溶解性、結着剤に対する溶解性が良好であるた
め、均一に溶解した高濃度のインクを調製するこ
とが容易であり、それらのインクを用いることに
より、色素が均一に高濃度で塗布された耐摩擦堅
牢性にすぐれた転写シートを得ることができる。
したがつて、それらの転写シートを用いることに
より、画像ムラがなく地汚れのないすぐれた記録
を得ることができる。
実施例
以下実施例によりこの発明を具体的に説明する
が、かかる実施例は本発明を限定するものではな
い。
実施例 1
(a) インクの調製
本実施例に使用したアントラキノン色素:
上記色素 10g
酢酸セルロース(ダイセル化学社製、L−30)
10gメチルエチルケトン 80g
合 計 100g
上記組成の混合物をペイントコンデイシヨナ
ーで10分間処理し、インクの調製を行なつた。
色素及び樹脂は完全に溶解し、均一な溶液のイ
ンキを得ることができた。
(b) 転写シートの作製
上記のインクをバーコーター(RK Print
Coat Instruments 社製No.1)を用いてコン
デンサー紙(10μm厚)上に塗布した後、自然
乾燥して転写シートを得た。得られた転写シー
トは、均一で耐摩擦堅牢性にすぐれていた。
(c) 転写記録
上記転写シートのインク塗布面を被記録体と
重ね感熱ヘツドを用い下記条件で記録し、鮮明
なマゼンタ色で1.15の色濃度の画像ムラがなく
地汚れのない良好な転写記録を得ることができ
た。
記録条件
主走査、副捜査の線密度:4ドツト/mm
記録電力:0.6W/ドツト
ヘツドの加熱時間:10msec
なお、被記録体は、飽和ポリエステル34重量
%の水分散液(東洋紡績株式会社製造、バイロ
ナールMD−1200、商品名)10gとシリカ(日
本シリカ工業株式会社製造、Nipsil E220A、
商品名)1gを混合し調製した液を上質紙
(200μm厚)にバーコーター(RK Print Coat
Instruments社製造、No.3)を用いて塗布後、
乾燥して製造したものである。
色濃度は、米国マクベス社製造、デンシトメ
ーターRD−514型(フイルター:ラツテンNo.
58)を用いて測定した。
得られた記録の耐光性試験をカーボンアーク
フエードメーター(スガ試験機株式会社製造)
を用いて実施(ブラツクパネル温度63±2℃)
したが、40時間の照射後ほとんど変退色しなか
つた。また、転写シートおよび記録は熱及び湿
気に対して安定であり、暗所保存性にすぐれて
いた。
実施例 2
実施例1で用いた色素のかわりに、第1表に示
す色素を用い実施例1と同様の方法でインクの調
製、転写シートの作製、転写記録を実施した結
果、各々第1表に示す色濃度の鮮明なマゼンタ色
の画像ムラがなく地汚れのない良好な転写記録を
得ることができた。
得られた記録の耐光性試験および転写シート及
び記録の暗所保存性試験の結果は良好であつた。
Object of the Invention (a) Industrial Application Field The present invention relates to a dye used in sublimation type thermal transfer recording. (b) Prior Art Conventionally, there has been a demand for technology for color recording facsimile printers, copying machines, television images, etc., and color recording technologies using electrophotography, inkjet, thermal transfer, etc. are being considered. The thermal transfer recording method is considered to be advantageous over other methods because the device is easy to maintain and operate, and the device and consumables are inexpensive. Thermal transfer methods include a melting method in which a transfer sheet with a heat-melting ink layer formed on a base film is heated by a heat-sensitive head to melt the ink and transfer recording onto a recording medium; There is a sublimation method, in which a transfer sheet on which an ink layer containing a sublimable dye is formed is heated by a thermal head to sublimate the dye, and then transferred and recorded onto a recording medium. Since the amount of sublimation transfer of the dye can be controlled by changing the applied energy, gradation recording becomes easy and is considered to be particularly advantageous for full color recording. (c) Problems to be Solved by the Invention The transfer sheet used for the above purpose is required to be able to perform high density and uniform transfer recording and to have good abrasion resistance. In other words, if the image is not transferred uniformly, density unevenness will occur in the image, and if the abrasion resistance is poor, excess dye will develop in areas other than the image area that are not recorded, resulting in the so-called background smearing phenomenon. This is because the overall quality will deteriorate. These scumming phenomena occur because the dye recrystallizes when it is dissolved or dried, forming coarse crystals, or because the dye does not dissolve completely and remains as coarse crystals. it is conceivable that. Structure of the invention (a) Means for solving the problem That is, the present invention solves the following general formula [] (In the formula, R represents a C2 to C10 alkyl group, a C2 to C10 alkoxy group, or a trifluoromethyl group.) As a method for producing these anthraquinone dyes of the present invention, for example, the following structural formula [] The compound represented by and the following general formula [] (In the formula, R is the same as defined above.) It can be obtained by heating a phenol represented by the following in a polar solvent in the presence of a deoxidizing agent. Particularly preferred is the general formula []
Examples include dyes in which R is a C2 to C10 alkyl group or a C2 to C6 alkoxy group. When applying the dye of the present invention to this recording method, it is necessary to prepare an ink by dissolving the dye together with a binder in a medium, apply the ink onto a base film, and dry it to prepare a transfer sheet. . Binders for ink preparation include water-soluble resins such as cellulose, acrylic acid, and starch, and organic solvent-soluble resins such as acrylic resin, methacrylic resin, polystyrene, polycarbonate, polysulfone, polyethersulfone, and ethyl cellulose. Examples include resin. Vehicles for ink preparation include toluene,
Aromatics such as xylene and chlorobenzene, esters such as ethyl acetate and butyl acetate, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone, chlorinated solvents such as methylene chloride, chloroform, and trichloroethylene, tetrahydrofuran, dioxane, etc. Examples include organic solvents such as ethers, N,N-dimethylformamide, and N-methylpyrrolidone. The base film used to apply ink for the production of transfer sheets includes condenser paper, thin paper such as glassine paper, polyester, polyamide,
Plastic films with good heat resistance such as polyimide are suitable, and their thickness may range from 3 to 50 .mu.m. The ink can be applied to the base film using a reverse roll coater, gravure coater, rod coater, air doctor coater, etc., and the thickness of the ink coating layer after drying is in the range of 0.1 to 5 μm. All you have to do is apply it so that it is coated ("Coating Method" by Yuji Harasaki, published by Maki Shoten in 1979). Functions and Effects of the Invention The anthraquinone dye shown in [] above of the present invention has a clear magenta color, so it is possible to obtain full-color recording with good color reproducibility by combining it with appropriate yellow and cyan colors. suitable for In particular, since it is stable against heat, light, moisture, chemicals, etc., it does not undergo thermal decomposition during transfer recording, and the resulting recording has excellent storage stability. In addition, since the dye of the present invention has particularly good solubility in organic solvents and binders, it is easy to prepare uniformly dissolved and highly concentrated inks, and these inks can be used. By doing so, it is possible to obtain a transfer sheet having excellent abrasion resistance and fastness to which the dye is applied uniformly and at a high concentration.
Therefore, by using these transfer sheets, it is possible to obtain excellent recording without image unevenness and background smudge. EXAMPLES The present invention will be specifically explained below with reference to Examples, but these Examples are not intended to limit the present invention. Example 1 (a) Preparation of ink Anthraquinone dye used in this example: Above dye 10g Cellulose acetate (manufactured by Daicel Chemical Co., Ltd., L-30)
10g Methyl ethyl ketone 80g Total 100g The mixture having the above composition was treated with a paint conditioner for 10 minutes to prepare an ink.
The pigment and resin were completely dissolved, and an ink with a uniform solution could be obtained. (b) Preparation of transfer sheet Apply the above ink using a bar coater (RK Print).
Coat Instruments Co., Ltd. No. 1) was applied onto a capacitor paper (10 μm thick) and then air-dried to obtain a transfer sheet. The resulting transfer sheet was uniform and had excellent abrasion resistance. (c) Transfer recording The ink-coated surface of the above transfer sheet was placed over the recording medium and recorded using a thermal head under the following conditions, and a clear magenta color with a color density of 1.15 was obtained, with a good transfer record without unevenness and background stains. I was able to get Recording conditions Linear density of main scanning and sub-scanning: 4 dots/mm Recording power: 0.6 W/Dot head heating time: 10 msec The recording medium was an aqueous dispersion of 34% by weight saturated polyester (manufactured by Toyobo Co., Ltd., Vylonal MD-1200, trade name) 10g and silica (manufactured by Nippon Silica Kogyo Co., Ltd., Nipsil E220A,
Mix 1 g of product name) and apply the prepared solution to high-quality paper (200 μm thick) using a bar coater (RK Print Coat).
After application using No. 3 manufactured by Instruments,
It is manufactured by drying. Color density was measured using a densitometer RD-514 model manufactured by Macbeth Corporation in the United States (filter: Ratten No.
58). The light resistance test of the obtained record was performed using a carbon arc fade meter (manufactured by Suga Test Instruments Co., Ltd.).
(Black panel temperature 63±2℃)
However, there was almost no discoloration or fading after 40 hours of irradiation. Furthermore, the transfer sheet and the recording were stable against heat and moisture, and had excellent storage stability in the dark. Example 2 Instead of the dyes used in Example 1, the dyes shown in Table 1 were used to prepare ink, prepare a transfer sheet, and perform transfer recording in the same manner as in Example 1. As a result, the results shown in Table 1 were obtained. It was possible to obtain a good transfer record of a clear magenta color image with a clear color density as shown in FIG. The results of the light fastness test of the obtained record and the dark storage stability test of the transfer sheet and record were good.
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】
実施例 3
実施例1で用いた本発明のアントラキノン系色
素を用い、下記組成
色素(実施例1と同じもの) 10g
エチルセルロース(ハーキユーレス社製) 10gメチルエチルケトン 80g
合 計 100g
でインクの調製を行なつた以外は、実施例1と同
様の方法で転写シートの作製及び転写記録を行な
つた結果、鮮明な1.15の色濃度のマゼンタ色の画
像ムラがなく、地汚れのない良好な転写記録を得
ることができた。
得られた記録の耐光性試験および転写シート・
記録の暗所保存性試験の結果は良好であつた。
比較例 1
実施例1で使用した本発明のアントラキノン系
色素の代りに下記構造式
で示される色素を用いて、実施例1と同様な方法
でインクを調製したところ、色素は溶媒に完全に
溶解せず、一部の色素は粗大結晶のまま残存して
いた。
上記のインクを用いて、実施例1と同様な方法
で塗布したところ、乾燥時に再結晶もおこり、
所々に粗大結晶が析出した不均一な転写シートが
得られた。
上記の転写シートを用いて、実施例1と同様な
方法で転写記録を行なつたところ、画像ムラがあ
る不均一な転写記録が得られ、しかも記録してい
ない部分にも余分の染料の発色がおこり、画像全
体の品質を低下させた。[Table] Example 3 Using the anthraquinone pigment of the present invention used in Example 1, an ink was prepared with the following composition pigment (same as in Example 1): 10 g Ethyl cellulose (manufactured by Hercules) 10 g Methyl ethyl ketone 80 g Total 100 g A transfer sheet was prepared and transfer recording was performed in the same manner as in Example 1, except for the following steps. As a result, a clear magenta image with a color density of 1.15 was produced, with no unevenness, and a good transfer record without background stains. I was able to get Lightfastness test of the obtained recording and transfer sheet
The results of the dark storage stability test of the records were good. Comparative Example 1 The following structural formula was used instead of the anthraquinone dye of the present invention used in Example 1. When an ink was prepared using the dye shown in Example 1 in the same manner as in Example 1, the dye was not completely dissolved in the solvent, and some of the dye remained as coarse crystals. When the above ink was applied in the same manner as in Example 1, recrystallization also occurred during drying.
A non-uniform transfer sheet was obtained in which coarse crystals were precipitated here and there. When transfer recording was carried out using the above transfer sheet in the same manner as in Example 1, an uneven transfer record with uneven images was obtained, and additionally, the unrecorded areas were also colored by excess dye. occurred, reducing the overall quality of the image.
Claims (1)
ルコキシ基、トリフルオロメチル基を表わす) で示される感熱転写記録用アントラキノン系色
素。 2 基材上に結着剤と色素とを含む色材層を有し
てなる感熱転写シートに用いる特許請求の範囲第
1項に記載の感熱転写記録用アントラキノン系色
素。[Claims] 1. General formula [] (In the formula, R represents a C2 - C10 alkyl group, a C2 - C10 alkoxy group, or a trifluoromethyl group.) An anthraquinone dye for thermal transfer recording. 2. An anthraquinone dye for thermal transfer recording according to claim 1, which is used in a thermal transfer sheet having a coloring material layer containing a binder and a dye on a base material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60068694A JPS61227093A (en) | 1985-04-01 | 1985-04-01 | Coloring matter of anthraquinone series for thermal transfer recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60068694A JPS61227093A (en) | 1985-04-01 | 1985-04-01 | Coloring matter of anthraquinone series for thermal transfer recording |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61227093A JPS61227093A (en) | 1986-10-09 |
JPH0515197B2 true JPH0515197B2 (en) | 1993-02-26 |
Family
ID=13381123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60068694A Granted JPS61227093A (en) | 1985-04-01 | 1985-04-01 | Coloring matter of anthraquinone series for thermal transfer recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61227093A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5168093A (en) * | 1987-12-29 | 1992-12-01 | Mitsui Toatsu Chemicals Inc. | Sublimation thermaltransfer printing sheet comprising novel magenta dyestuffs |
US5300475A (en) * | 1987-12-29 | 1994-04-05 | Mitsui Toatsu Chemicals, Incorporated | Sublimation thermal transfer printing sheet comprising novel magenta dyestuffs |
DE3856252T2 (en) * | 1987-12-29 | 1999-02-18 | Mitsui Chemicals, Inc., Tokio/Tokyo | Thermal sublimation transfer printing |
JP2723152B2 (en) * | 1987-12-29 | 1998-03-09 | 三井東圧化学株式会社 | Thermal sublimation transfer sheet |
-
1985
- 1985-04-01 JP JP60068694A patent/JPS61227093A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61227093A (en) | 1986-10-09 |
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