JPH07117347A - Thermal transfer recording material - Google Patents
Thermal transfer recording materialInfo
- Publication number
- JPH07117347A JPH07117347A JP5264997A JP26499793A JPH07117347A JP H07117347 A JPH07117347 A JP H07117347A JP 5264997 A JP5264997 A JP 5264997A JP 26499793 A JP26499793 A JP 26499793A JP H07117347 A JPH07117347 A JP H07117347A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- color
- sensitive
- thermal transfer
- thermal
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は感熱転写記録材料に関
し、特に混色のなく、コントラストの高い感熱転写記録
材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive transfer recording material, and more particularly to a heat-sensitive transfer recording material having no color mixture and high contrast.
【０００２】[0002]
【従来の技術】従来、感熱記録媒体としては昇華性染料
含有層を支持体の裏面上に設けた転写シートと該転写シ
ート裏面からの昇華性染料を受容する受容シートからな
るもの、あるいは熱可融性物質と有色染料あるいは有色
顔料からなる転写層を支持体の裏面に設けた転写シート
と受容シートを組み合せたもの等の感熱転写紙、更にロ
イコ染料と顕色剤等の反応して発色する物質を支持体上
に担持させた感熱紙が知られている。これらは熱ペンや
サーマルヘッド等で熱エネルギーを加えることにより記
録を形成するものである。2. Description of the Related Art Conventionally, a thermosensitive recording medium comprises a transfer sheet having a sublimable dye-containing layer on the back surface of a support and a receiving sheet for receiving the sublimable dye from the back surface of the transfer sheet, or a heat-sensitive recording medium. A thermal transfer paper such as a combination of a transfer sheet and a receiving sheet in which a transfer layer composed of a fusible substance and a colored dye or a colored pigment is provided on the back surface of a support, and a leuco dye and a color developer react to develop color. Thermal paper in which a substance is carried on a support is known. These form recording by applying heat energy with a hot pen, a thermal head, or the like.
【０００３】さらに感熱紙上にロイコ染料による発色以
外に、発色色相を変えてその箇所を強調したい場合があ
る。この場合、お互いに異なる発色色相を有する感熱紙
と感熱転写シートを対向させ熱をかけることが考えられ
るが、両者の混色になり目立った発色色相が得られない
という欠点がある。Further, in addition to the coloring by the leuco dye on the thermal paper, there are cases where it is desired to change the coloring hue to emphasize that portion. In this case, it is conceivable that the heat-sensitive paper and the heat-sensitive transfer sheet having mutually different coloring hues are opposed to each other and heat is applied thereto, but there is a drawback that both colors are mixed and a conspicuous coloring hue cannot be obtained.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、感熱
紙上にロイコ染料による発色を全くさせずに、異なる発
色色相を形成することができる感熱転写シートを提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a heat-sensitive transfer sheet capable of forming different coloring hues on a heat-sensitive paper without any color development by a leuco dye.
【０００５】[0005]
【課題を解決するための手段】本発明の課題は、支持体
上に感熱転写層を設けた感熱転写ドナーシートと、支持
体上にロイコ染料と顕色剤を含む感熱記録層を設けた感
熱記録シートとからなる感熱転写記録材料において、感
熱転写層中にロイコ染料と顕色剤との発色反応を抑制す
る減感性物質と有色染料及び／または有色顔料を含むこ
とを特徴とする感熱転写記録材料により達成された。An object of the present invention is to provide a heat-sensitive transfer donor sheet having a heat-sensitive transfer layer provided on a support, and a heat-sensitive recording layer having a leuco dye and a color developer on the support. A heat-sensitive transfer recording material comprising a recording sheet, wherein the heat-sensitive transfer layer contains a desensitizing substance that suppresses a coloring reaction between a leuco dye and a color developer and a colored dye and / or a colored pigment. Achieved by the material.
【０００６】本発明の感熱転写層に用いられる有色染料
及び有色顔料としては、例えばモノアゾ系、ジスアゾ
系、ローダミン系、ペリレン系、キナクリドン系、カド
ミウムレッド、ベンガラ等の赤系統顔料：銅フタロシア
ニン系、トリアリルメタン系、コバルトブルー、群青等
の青系統顔料：ベンジジン系、モノアゾ系、ジスアゾ
系、チタンエロー、黄鉛等の黄系統顔料等の各種顔料、
及び、モノアゾ系、ジスアゾ系、ローダミン系、ローズ
ベンガル系等の赤系統染料：ジスアゾ系、トリアリルメ
タン系等の青系統染料：ジスアゾ系、トリアリルメタン
系等の黄系統染料等の各種染料が挙げられる。Examples of the colored dyes and colored pigments used in the heat-sensitive transfer layer of the present invention include red pigments such as monoazo, disazo, rhodamine, perylene, quinacridone, cadmium red and red iron oxide: copper phthalocyanine, Blue pigments such as triallylmethane-based, cobalt blue, ultramarine blue: various pigments such as benzidine-based, monoazo-based, disazo-based, titanium yellow, yellow lead-based yellow-based pigments, etc.
And red dyes such as monoazo, disazo, rhodamine and rose bengal: blue dyes such as disazo and triallylmethane: various dyes such as yellow dyes such as disazo and triallylmethane Can be mentioned.
【０００７】本発明の感熱転写層に用いられる減感性物
質は、ロイコ染料と顕色剤との発色反応を抑制する化合
物であり、例えばトリオクチルホスフェート、トリフェ
ニルホスフェート、トリクレジルホスフェート、アジピ
ン酸ジオクチル、セバシン酸ジブチル、フタル酸ジオク
チル、フタル酸ジシクロヘキシル、トリメリット酸トリ
ブチル、ソルビタン脂肪酸エステル、ポリオキシアルキ
レン脂肪酸エステルなどのエステル類、オレイルアルコ
ール、トリデシルアルコール、ベンジルアルコールなど
のアルコール類、アセトフェノン、メチルシクロヘキサ
ノン、ホロンなどのケトン類、ポリアルキレングリコー
ル、ポリオキシアルキレンアルキルアミン、ポリオキシ
アルキレンオレイルエーテル、ポリオキシアルキレンア
ルキルエーテル、ポリオキシアルキレンアルケニルエー
テル、ポリオキシアルキレンアルキルフェノールエーテ
ル等のエーテル類、モノアルキルアミン、ジアルキルア
ミン、トリアルキルアミン、トリフェニルグアニジン、
ジシクロヘキシルグアニジン、２−ベンジルイミダゾー
ル、２−フェニル−４−メチルイミダゾール、２−ウン
デシルイミダゾリン、２，４，５−トリフリル−２−イ
ミダゾリン、Ｎ，Ｎ’−ジベンジルピペラジン等の有機
塩基類等が挙げられ、単独もしくは併用して使用され
る。この他にも、感圧記録紙用減感剤として知られてい
るものは全て使用できる。The desensitizing substance used in the heat-sensitive transfer layer of the present invention is a compound which suppresses the color forming reaction between the leuco dye and the color developing agent, and examples thereof include trioctyl phosphate, triphenyl phosphate, tricresyl phosphate and adipic acid. Dioctyl, dibutyl sebacate, dioctyl phthalate, dicyclohexyl phthalate, tributyl trimellitate, sorbitan fatty acid ester, esters such as polyoxyalkylene fatty acid ester, alcohols such as oleyl alcohol, tridecyl alcohol, benzyl alcohol, acetophenone, methyl Cyclohexanone, ketones such as holone, polyalkylene glycol, polyoxyalkylene alkylamine, polyoxyalkylene oleyl ether, polyoxyalkylene alkyl ether, Polyoxyalkylene alkenyl ether, ethers such as polyoxyalkylene alkyl phenol ethers, monoalkyl amines, dialkyl amines, trialkyl amines, triphenyl guanidine,
Organic bases such as dicyclohexylguanidine, 2-benzylimidazole, 2-phenyl-4-methylimidazole, 2-undecylimidazoline, 2,4,5-trifuryl-2-imidazoline, and N, N'-dibenzylpiperazine are available. And may be used alone or in combination. Besides this, all known desensitizers for pressure-sensitive recording paper can be used.
【０００８】本発明の感熱転写層は上記のようなロイコ
染料と顕色剤との発色反応を抑制する減感性物質と有色
染料及び／又は有色顔料の二成分を含有する。通常これ
らの成分に、ワックス類及び／又は樹脂を加え、更に必
要に応じて酸化防止剤、紫外線吸収剤、顔料、滑剤等、
各種助剤が添加され、ホットメルト又は溶剤系の溶液を
調製し、塗工機又は印刷機により紙、合成紙、合成樹脂
フイルム等の支持体に塗布して転写層を形成する。減感
性物質の全転写層に対する割合は１０〜９０％、好まし
くは３０〜７５％であり、転写層の塗布量は固形分で１
〜１０ｇ／ｍ2、好ましくは２．５〜５．５ｇ／ｍ2 で
ある。The heat-sensitive transfer layer of the present invention contains two components, a desensitizing substance that suppresses the color development reaction between the above leuco dye and the color developer, and a colored dye and / or a colored pigment. Usually, waxes and / or resins are added to these components, and if necessary, an antioxidant, an ultraviolet absorber, a pigment, a lubricant, etc.
Various auxiliaries are added to prepare a hot-melt or solvent-based solution, which is applied to a support such as paper, synthetic paper, synthetic resin film or the like by a coating machine or a printing machine to form a transfer layer. The ratio of the desensitizing substance to the total transfer layer is 10 to 90%, preferably 30 to 75%, and the coating amount of the transfer layer is 1 in terms of solid content.
10 to 10 g / m 2 , preferably 2.5 to 5.5 g / m 2 .
【０００９】感熱転写層形成に用いられるワックス類と
しては、密蝋等の動物系ワックス、カルナウバワックス
等の植物系ワックス、モンタンワックス等の鉱物系ワッ
クス、パラフィンワックス、マイクロクリスタリンワッ
クス等の石油系ワックス、パラフィンワックス誘導体等
の変性ワックス、カスターワックス等の水素化ワック
ス、ジステアリルケトン等の合成ワックス、ステアリン
酸アマイド等の脂肪酸アマイド系ワックス、ステアリン
酸等の脂肪酸系ワックス、ステアリルアルコール等のア
ルコール系ワックス、ジステアリルリン酸エステル等の
リン酸エステル系ワックス等が挙げられる。The waxes used for forming the heat-sensitive transfer layer include animal waxes such as beeswax, plant waxes such as carnauba wax, mineral waxes such as montan wax, petroleum waxes such as paraffin wax and microcrystalline wax. Wax, modified wax such as paraffin wax derivative, hydrogenated wax such as castor wax, synthetic wax such as distearyl ketone, fatty acid amide wax such as stearic acid amide, fatty acid wax such as stearic acid, alcohol such as stearyl alcohol Examples thereof include waxes and phosphate ester waxes such as distearyl phosphate.
【００１０】樹脂としては下記の如き物質が例示され
る。ロジン、セラック、コーパル、ダルマン、ギルソナ
イト、ゼイン等の天然樹脂、硬化ロジン、エステルガム
及びその他のロジンエステル、マレイン酸樹脂、フマル
酸樹脂、二量化ロジン、重合ロジン、ロジン変性フェノ
ール樹脂、メチルセルロース、エチルセルロース、ヒド
ロキシエチルセルロース、ヒドロキシプロピルセルロー
ス、セルロースアセテートプロピオネート、セルロース
アセテートブチレート、ニトロセルロース等の半合成樹
脂、フェノール樹脂、キシレン樹脂、尿素樹脂、メラミ
ン樹脂、ケトン樹脂、クマロン・インデン樹脂、石油樹
脂、テルペン樹脂、環化ゴム、塩化ゴム、アルキッド樹
脂、ポリアミド樹脂、アクリル樹脂、ポリ塩化ビニル、
塩化ビニル・酢酸ビニル共重合体、ポリ酢酸ビニル等。Examples of the resin include the following substances. Natural resin such as rosin, shellac, copal, dalman, gilsonite, zein, cured rosin, ester gum and other rosin ester, maleic acid resin, fumaric acid resin, dimerized rosin, polymerized rosin, rosin-modified phenolic resin, methyl cellulose, ethyl cellulose , Hydroxyethyl cellulose, hydroxypropyl cellulose, cellulose acetate propionate, cellulose acetate butyrate, nitrocellulose and other semi-synthetic resins, phenol resins, xylene resins, urea resins, melamine resins, ketone resins, coumarone indene resins, petroleum resins, Terpene resin, cyclized rubber, chlorinated rubber, alkyd resin, polyamide resin, acrylic resin, polyvinyl chloride,
Vinyl chloride / vinyl acetate copolymer, polyvinyl acetate, etc.
【００１１】[0011]
【作用】本発明の感熱転写シートと対向される感熱紙は
ロイコ染料と顕色剤からなる種々公知のものが使用でき
る。発色色相が異なる両者が対向されて、ある部分熱エ
ネルギーが加えられると、感熱転写シートから有色染料
及び／又は有色顔料と減感性物質が感熱紙上に転写し、
減感性物質が感熱紙の発色を抑制し有色染料及び／又は
有色顔料による発色のみが感熱紙上のその部分に得られ
る。次に感熱転写シートを除去し、該感熱紙上の発色し
ていない部分に直接熱エネルギーが加えられると、感熱
紙による発色が得られ、同一感熱紙上に異なる二色が混
色なく得られることになる。発色させる順序を前記と逆
にしても、全く同じものが得られる。As the heat-sensitive paper facing the heat-sensitive transfer sheet of the present invention, various known papers containing a leuco dye and a color developer can be used. When the two parts having different coloring hues are opposed to each other and a certain partial heat energy is applied, the color dye and / or the color pigment and the desensitizing substance are transferred from the heat-sensitive transfer sheet onto the heat-sensitive paper,
The desensitizing substance suppresses the color development of the thermal paper, and only the color development by the colored dye and / or the colored pigment is obtained in that portion on the thermal paper. Next, when the heat-sensitive transfer sheet is removed and heat energy is directly applied to the non-colored portion on the heat-sensitive paper, color development by the heat-sensitive paper is obtained, and two different colors can be obtained on the same heat-sensitive paper without mixing. . Even if the order of color development is reversed, the same result can be obtained.
【００１２】[0012]
【実施例】以下に本発明の効果をより一層明確にするた
めに実施例を示すが、本発明はこれらの実施例に限定さ
れるものではない。 〔実施例１〕ワックスとしてカルナバワックス４０部、
有色顔料としてベンガラ１０部、減感性物質としてジシ
クロヘキシルフタレート５０部を１３０°Ｃ下で混合し
て得た熱溶融性インキを厚さ６ミクロンのポリエチレン
テレフタレートフイルムに５ｇ／ｍ2 になるようにホッ
トメルトコーターで塗布し感熱転写シートを得た。EXAMPLES Examples will be shown below to further clarify the effects of the present invention, but the present invention is not limited to these examples. [Example 1] 40 parts of carnauba wax as a wax,
A hot-melt ink obtained by mixing 10 parts of red iron oxide as a colored pigment and 50 parts of dicyclohexyl phthalate as a desensitizing substance at 130 ° C. was hot-melted to a polyethylene terephthalate film having a thickness of 6 μm so as to be 5 g / m 2. It was applied with a coater to obtain a heat-sensitive transfer sheet.
【００１３】ロイコ染料として２−アニリノ−３−メチ
ル−６−Ｎ−エチル−Ｎ−イソアミルアミノ−フルオラ
ン１０部、顕色剤としてビスフェノールＡ２０部、増感
剤としてベンジルナフチルエテル２０部をそれぞれ１０
０部の５％ポリビニルアルコール水溶液と共に一昼夜ボ
ールミルで分散して、平均粒径１．５ミクロン以下の各
々の分散液を得た。また、炭酸カルシウム８０部をヘキ
サメタリン酸ソーダ０．５％水溶液１６０部と共にホモ
ジナオザーで分散した。これら分散液を、ロイコ染料分
散液５部、顕色剤分散液１０部、増感剤分散液１０部炭
酸カルシウム分散液１５０部の割合で混合し、更に２１
％ステアリン酸亜鉛エマルジョン３部、パラフィンワッ
クス分散物２部を添加して感熱発色層塗液を得た。この
塗液を坪量５０ｇの下塗り原紙にコーティングバーを用
いて塗布層の乾燥重量が４ｇ／ｍ 2 になるように塗布
し、５０°Ｃで１分間乾燥して感熱紙を得た。2-anilino-3-methyl as a leuco dye
Le-6-N-ethyl-N-isoamylamino-fluora
10 parts, bisphenol A as a developer, 20 parts, sensitization
20 parts of benzyl naphthyl ether as agents
Day and night with 0 parts of 5% polyvinyl alcohol aqueous solution
Each with an average particle size of 1.5 microns or less
Each dispersion was obtained. Also, add 80 parts of calcium carbonate
Homozygous with 160 parts of 0.5% sodium sametaphosphate solution
Dispersed with Zinosaur. Add these dispersions to the leuco dye
5 parts of dispersion, 10 parts of developer dispersion, 10 parts of sensitizer dispersion charcoal
Calcium acid dispersion liquid is mixed at a ratio of 150 parts, and further 21
% Zinc stearate emulsion 3 parts, paraffin wax
2 parts by weight of the cous dispersion was added to obtain a coating solution for the thermosensitive color developing layer. this
Use a coating bar on the base paper of 50g basis weight
And the dry weight of the coating layer is 4 g / m 2Apply to
Then, it was dried at 50 ° C. for 1 minute to obtain a thermal paper.
【００１４】このようにして得られた感熱紙の発色層面
に上記の感熱転写シートを重ねてサーマルヘッドで熱印
字すると、良好な赤色の印字画像が得られた。その後感
熱転写シートを取り外し、前記の発色部分以外の所に、
直接サーマルヘッドで熱印字すると、良好な黒色の印字
画像が得られた。When the above heat-sensitive transfer sheet was overlaid on the color-developing layer surface of the heat-sensitive paper thus obtained and heat-printed with a thermal head, a good red printed image was obtained. After that, remove the heat-sensitive transfer sheet, and in a place other than the above-mentioned color-developing part,
Direct thermal printing with a thermal head gave a good black printed image.
【００１５】〔比較例１〕実施例１において減感性物質
であるジシクロヘキシルフタレートを使用せず、カルナ
バワックス９０部に変える以外は実施例１と同様にして
感熱転写シートを得た。Comparative Example 1 A heat-sensitive transfer sheet was obtained in the same manner as in Example 1 except that the desensitizing substance dicyclohexyl phthalate was not used in Example 1 but 90 parts of carnauba wax was used.
【００１６】実施例１の感熱紙の発色層面に上記の感熱
転写シートを重ねてサーマルヘッドで熱印字すると、赤
色と黒色が混じり合った印字画像しか得られず、直接サ
ーマルヘッドで熱印字した部分の黒色画像とのコントラ
ストがほとんどつかなくなった。When the above-mentioned thermal transfer sheet is overlaid on the color developing layer surface of the thermal paper of Example 1 and thermal printing is carried out by the thermal head, only a printed image in which red and black are mixed is obtained, and the portion directly printed by the thermal head is printed. Almost no contrast with the black image of.
【００１７】〔実施例２〕実施例１において減感性物質
としてジシクロヘキシルフタレートの代わりに、ポリオ
キシエチレンオクタデシルアミンを用いる以外は実施例
１と同様にして感熱転写シートを得た。Example 2 A heat-sensitive transfer sheet was obtained in the same manner as in Example 1 except that polyoxyethylene octadecylamine was used instead of dicyclohexyl phthalate as the desensitizing substance.
【００１８】実施例１の感熱紙の発色層面に上記の感熱
転写シートを重ねてサーマルヘッドで熱印字すると、良
好な赤色の印字画像が得られた。その後感熱転写シート
を取り外し、前記の発色部分以外の所に、直接サーマル
ヘッドで熱印字すると、良好な黒色の印字画像が得られ
た。When the above-mentioned heat-sensitive transfer sheet was overlaid on the color-developing layer surface of the heat-sensitive paper of Example 1 and heat-printed with a thermal head, a good red printed image was obtained. After that, the heat-sensitive transfer sheet was removed, and thermal printing was directly performed on a portion other than the above-mentioned color-developed portion with a thermal head, and a good black printed image was obtained.
【００１９】[0019]
【発明の効果】以上のように、本発明の感熱転写シート
を用いることにより、ロイコ染料と顕色剤からなる感熱
紙上に該転写シートに含まれる有色染料及び／又は有色
顔料の発色のみを形成することができ、コントラストが
高い二色発色が可能になったことがわかる。As described above, by using the heat-sensitive transfer sheet of the present invention, only the coloring of the colored dye and / or the colored pigment contained in the transfer sheet is formed on the thermal paper comprising the leuco dye and the color developer. It can be seen that two-color development with high contrast has become possible.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 9121−2Ｈ Ｂ４１Ｍ 5/26 Ｈ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location 9121-2H B41M 5/26 H
Claims (1)
ドナーシートと、支持体上にロイコ染料と顕色剤を含む
感熱記録層を設けた感熱記録シートとからなる感熱転写
記録材料において、該感熱転写層中にロイコ染料と顕色
剤との発色反応を抑制する減感性物質と有色染料及び／
または有色顔料を含むことを特徴とする感熱転写記録材
料。1. A heat-sensitive transfer recording material comprising a heat-sensitive transfer donor sheet having a heat-sensitive transfer layer provided on a support and a heat-sensitive recording sheet having a heat-sensitive recording layer containing a leuco dye and a color developer provided on the support. , A desensitizing substance and a colored dye which suppress the color development reaction between the leuco dye and the color developer in the heat-sensitive transfer layer and /
Alternatively, a thermal transfer recording material containing a colored pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26499793A JP3353970B2 (en) | 1993-10-22 | 1993-10-22 | Thermal transfer recording material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26499793A JP3353970B2 (en) | 1993-10-22 | 1993-10-22 | Thermal transfer recording material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07117347A true JPH07117347A (en) | 1995-05-09 |
| JP3353970B2 JP3353970B2 (en) | 2002-12-09 |
Family
ID=17411138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26499793A Expired - Fee Related JP3353970B2 (en) | 1993-10-22 | 1993-10-22 | Thermal transfer recording material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3353970B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611394C2 (en) * | 1995-03-24 | 2001-03-15 | Fuji Photo Film Co Ltd | Method and apparatus for thermal recording and for thermal transfer recording in a multi-color system |
-
1993
- 1993-10-22 JP JP26499793A patent/JP3353970B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611394C2 (en) * | 1995-03-24 | 2001-03-15 | Fuji Photo Film Co Ltd | Method and apparatus for thermal recording and for thermal transfer recording in a multi-color system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3353970B2 (en) | 2002-12-09 |
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