JPS60220767A - Thermal transfer printer - Google Patents
Thermal transfer printerInfo
- Publication number
- JPS60220767A JPS60220767A JP59077861A JP7786184A JPS60220767A JP S60220767 A JPS60220767 A JP S60220767A JP 59077861 A JP59077861 A JP 59077861A JP 7786184 A JP7786184 A JP 7786184A JP S60220767 A JPS60220767 A JP S60220767A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- medium
- transfer
- thermal
- layer
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
Landscapes
- Electronic Switches (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明は、熱エネルギー印加により、常温で固体の熱可
塑性インクを活性化させ、被転写媒体に転写させ、所望
の文字、画像を得る感熱転写印写装置に関する。Detailed Description of the Invention Technical Field The present invention relates to thermal transfer printing in which thermoplastic ink, which is solid at room temperature, is activated by application of thermal energy and transferred to a transfer medium to obtain desired characters and images. Regarding equipment.
〈従来技術〉
小型、低価格、カラー化、出力画像の良保存性の要求を
満たす出力端末として、感熱転写印写装置がある。<Prior Art> A thermal transfer printing device is an output terminal that satisfies the requirements of small size, low cost, colorization, and good preservation of output images.
しかし、フルカラー画像のような、非常に高品位な画像
をハードコピーするには、インクの転写再現性を更に上
ける必要がある。However, in order to make hard copies of very high-quality images such as full-color images, it is necessary to further improve ink transfer reproducibility.
第１図（α）に、従来の感熱転写印写装置の原理図を示
す。支持層（１０１）、インク層（１０２）で構成され
るインク媒体のインク面を被転写媒体、（１０８）と接
するように重ね、該支持層側よりサーマルヘッド（１０
４）より、画素に対応する！原パルス（１０５）によっ
て与えられる熱エネルギーを印加し、インクの一部（１
０６）を溶融させる。同時に、粘度が低下したインクが
被転写媒体中に侵透する（１０７）。後、インクが被転
写媒体から剥がすと、画素（第１図−（ｂ））が被転写
媒体上に残ｐ１画素が形成される。FIG. 1(α) shows a principle diagram of a conventional thermal transfer printing device. The ink surface of the ink medium composed of the support layer (101) and the ink layer (102) is stacked so as to be in contact with the transfer medium (108), and the thermal head (10
4) Corresponds to pixels! Thermal energy given by the original pulse (105) is applied and a portion of the ink (1
06) is melted. At the same time, the ink with reduced viscosity penetrates into the transfer medium (107). Afterwards, when the ink is peeled off from the transfer medium, a p1 pixel (FIG. 1-(b)) remains on the transfer medium.
転写再現性を改善するには、インクと被転写媒体との接
着力を増し、インク媒体ハク９時に、転写残ｐが生じな
−ようにする必要がある。すなわち、溶融インクの被転
写媒体中への浸透効率を上ける必要がある。In order to improve the transfer reproducibility, it is necessary to increase the adhesive force between the ink and the transfer medium to prevent transfer residue P from occurring when the ink medium is removed. That is, it is necessary to improve the penetration efficiency of the molten ink into the transfer medium.
しかし、従来の方式では、熱エネルギー供給時に第２図
のグラフに示す如く、ヘッド表面、インク媒体、被転写
媒体の順に、温度が低下しており、一旦溶融したインク
が、被転写媒体中に浸透すると、温度低下により粘度が
上昇するため、十分な浸透がおこなわれない。図中、２
０１はサーマルヘッド、２０２はインク媒体の支持層、
２０８はインク層、２０４は被転写媒体であり、上のグ
ラフは、サーマルヘッド加熱時の、インク媒体、被転写
媒体の断面の温度分布である。グラフの横軸Ｘはヘッド
表面からの距離、縦軸Ｔは相対温度である。However, in the conventional method, as shown in the graph in Figure 2, when thermal energy is supplied, the temperature decreases in the order of the head surface, the ink medium, and the transfer medium, and once the ink is melted, it flows into the transfer medium. When it penetrates, the viscosity increases due to the temperature drop, so it does not penetrate sufficiently. In the figure, 2
01 is a thermal head, 202 is an ink medium support layer,
208 is an ink layer, 204 is a transfer medium, and the upper graph shows the temperature distribution in the cross section of the ink medium and the transfer medium when the thermal head is heated. The horizontal axis X of the graph is the distance from the head surface, and the vertical axis T is the relative temperature.
このように、従来方式では、転写再現性が悪い為、画素
ドツトの転写不良がおこり、画品位を低下させていた。As described above, in the conventional method, the transfer reproducibility is poor, resulting in defective transfer of pixel dots and deteriorating the image quality.
く目的〉
本発明の目的は、上述の欠点を改良し、すなわち、イン
クの転写再現性を上け、商品位な画像のハードコピーを
可能にする感熱転写印写装置を提供することにある。OBJECTIVES> An object of the present invention is to provide a thermal transfer printing device that improves the above-mentioned drawbacks, that is, improves ink transfer reproducibility and makes it possible to produce commercial quality hard copies of images.
く概、要〉
すなわち、少くとも、熱供給部、熱可塑性インク媒体、
及び被転写媒体より構成され、該熱可塑性インク媒体の
インクへの熱エネルギー供給が、該被転写媒体を介する
熱伝導により行なわれることを特徴とする、感熱転写印
写装置、更には上述熱供給部が、発熱素子を有するサー
マルヘッド、熱可塑性インク媒体が少なくとも、支持層
と熱可塑性インク層を有するインクシート、被転写媒体
が受像紙であることを特徴とする感熱転写印写装置を提
供するものである。Summary, summary> That is, at least a heat supply section, a thermoplastic ink medium,
and a transfer medium, and the thermal energy is supplied to the ink of the thermoplastic ink medium by heat conduction through the transfer medium, and furthermore, the above-mentioned heat supply Provided is a thermal transfer printing device, characterized in that the first part is a thermal head having a heating element, the thermoplastic ink medium is an ink sheet having at least a support layer and a thermoplastic ink layer, and the transfer medium is an image receiving paper. It is something.
訂・シく説明する。Revise and explain clearly.
従来の感熱転写印写装置の転写再現性を上げるには、溶
融したインクが被転写媒体中に十分浸透するように、被
転写媒体の転写部分の、温度を上げる方法が有効である
。特に、環境温度が低い場合には、この効果が顕著に現
われる。In order to improve the transfer reproducibility of conventional thermal transfer printing devices, it is effective to raise the temperature of the transfer portion of the transfer medium so that the molten ink sufficiently penetrates into the transfer medium. This effect is particularly noticeable when the environmental temperature is low.
従来の方式でも、例えば、被転写媒体に熱バイアスを加
える方法、すなわち、面ヒーター等で被転写媒体を、イ
ンク媒体と反対面より加熱する方法があるが、この場合
、インク全面が加熱される為地汚れを生じやすくなる。Even in conventional methods, for example, there is a method of applying a thermal bias to the transfer medium, that is, a method of heating the transfer medium from the side opposite to the ink medium using a surface heater, etc., but in this case, the entire surface of the ink is heated. The soil is more likely to become soiled.
本発明の方法では、このようなディメリットは生じなめ
。The method of the present invention does not have such disadvantages.
第８図に本発明の１例の原理図を示す。FIG. 8 shows a principle diagram of an example of the present invention.
図中、３０１は支持層、３０２はインク層で両者でイン
ク媒体を構成する。８０Ｂは被転写紙であ、！０．８０
４はサーマルヘッド、８０５は画像の画素に対応して制
御される電圧パルスである。In the figure, 301 is a support layer, and 302 is an ink layer, both of which constitute an ink medium. 80B is the transfer paper! 0.80
4 is a thermal head, and 805 is a voltage pulse that is controlled in accordance with the pixels of the image.
前述の第２図と同様に、本方式での熱エネルギー印加時
の、被転写紙、インク媒体の断面での温度分布を第４し
１に示す。図中、４０１４−、ｔサーマルヘッド、４０
２は被転写、４０８はインク層、４゜４は支持１−であ
り、グラフの横軸Ｘはヘッド表面からの距離、縦軸Ｔは
相対温度である。Similarly to the above-mentioned FIG. 2, the temperature distribution in the cross section of the transfer paper and the ink medium when thermal energy is applied in this method is shown in FIG. 4 and 1. In the figure, 4014-, t thermal head, 40
2 is the transfer target, 408 is the ink layer, 4°4 is the support 1-, the horizontal axis X of the graph is the distance from the head surface, and the vertical axis T is the relative temperature.
グラフの火線で示されるように、加熱時には被転写媒体
の温度が高く、溶融されたインクの浸透か促進される。As shown by the caustic line in the graph, the temperature of the transfer medium is high during heating, and penetration of the molten ink is promoted.
〈実施例〉
インク媒体として、ＰＥＴ（厚さ６μｍ）フィルムに、
熱ＥＪ塑行ミインクを厚さ５μｍにコーティングしたも
のを用いた。<Example> As an ink medium, a PET (6 μm thick) film was used as an ink medium.
A material coated with thermal EJ molding ink to a thickness of 5 μm was used.
インクの組成を以下に示す。The composition of the ink is shown below.
カルザバワックス ２Ｄｗｔ％
パラフインワックス 駒 〃
マイクロクリスタリンワックス ２０ ｔｔＥＶＡ ｌ
（Ｊ／／
有材顔料 川 〃
被転写紙は、ビーチコート紙（日清紡製）を用いた。用
いたピーチコート紙の断面図を第５図に示す。図中、５
０１はＰＥＴ、５０２は転写層である。Calzaba wax 2Dwt% Parafine wax piece 〃 Microcrystalline wax 20 ttEVA l
(J// Material Pigment Kawa 〃 Beach coated paper (manufactured by Nisshinbo) was used as the transfer paper. A cross-sectional view of the peach coated paper used is shown in Figure 5. In the figure, 5
01 is PET, and 502 is a transfer layer.
ビーチコート紙の転写層と、インク媒体のインク層が接
するように両者を重ね、ピーチコート紙のＰＥＴ側から
サーマルヘッドで熱エネルギーを印加し、熱転写させた
。サーマルヘッドは８ｄＯ６／？ノ＋、＋４ 、ドツト
エネルギーは０．５ｍＪ／ｄ ｏ ｔであった。The transfer layer of the beach coated paper and the ink layer of the ink medium were overlapped so that they were in contact with each other, and thermal energy was applied with a thermal head from the PET side of the peach coated paper to perform thermal transfer. Thermal head is 8dO6/? +, +4, dot energy was 0.5 mJ/dot.
転写再現性を、転写画素のドツト径分布を測定すること
で評価した。結果を第６菌に示す。Transfer reproducibility was evaluated by measuring the dot diameter distribution of transferred pixels. The results are shown in the 6th bacterium.
横軸は、ドツト径、縦軸はドツト数の相対値である。The horizontal axis is the dot diameter, and the vertical axis is the relative value of the number of dots.
比較例として、従来の方式で行なったものの、ドツト径
分布を第７図に示す。As a comparative example, the dot diameter distribution of a conventional method is shown in FIG.
両者の比較より、本発明による方式の方が、ドツト径分
布が狭い、すなわち転写再現性が良い。Comparing the two, the method according to the present invention has a narrower dot diameter distribution, that is, better transfer reproducibility.
く効果〉
以上述べた如く、本発明による感熱転写印写装置は、熱
エネルギー印加時に、インク溶融と共に被転写媒体を加
熱し、インクの浸透を促進するため、転写再現性が非常
に良くなる。Effects> As described above, the thermal transfer printing device according to the present invention melts the ink and heats the transfer medium when thermal energy is applied to promote ink penetration, resulting in very good transfer reproducibility.
よって、烏画質を実現する、ハードコピー装置として最
適である。Therefore, it is ideal as a hard copy device that achieves excellent image quality.
第１図（ａ）、（ｂ）は従来の感熱転写の原理図を示す
。
第２図は、従来方式での、熱エネルギー印加時の、イン
ク媒体、被転写媒体中の温度分布である。
第３図は、本発明による、感熱転写方式の１例のＪＪｊ
、理図である。
第４図は、本発明の方式の熱エネルギー印加時の、イン
ク媒体、被転写媒体中の温度分布である。
第５図は、本発明の実施に使用した被転写媒体の断面図
である。
第６図は、本実施例での転写画素のドツト径分布である
。
第７図は、比較例での転写画素のドツト径分布である。
以 上
出願人 株式会社諏訪鞘゛工舎
代理人 弁理士最 上 務
第１図
第２図
第３図
第４図FIGS. 1(a) and 1(b) show diagrams of the principle of conventional thermal transfer. FIG. 2 shows the temperature distribution in the ink medium and the transfer medium when thermal energy is applied in the conventional method. FIG. 3 shows an example of the thermal transfer method according to the present invention.
, Rizu. FIG. 4 shows the temperature distribution in the ink medium and the transfer medium when thermal energy is applied according to the method of the present invention. FIG. 5 is a cross-sectional view of a transfer medium used in carrying out the present invention. FIG. 6 shows the dot diameter distribution of transferred pixels in this example. FIG. 7 shows the dot diameter distribution of transferred pixels in a comparative example. Applicant Suwa Sayakosha Co., Ltd. Agent Patent Attorney Mogami Figure 1 Figure 2 Figure 3 Figure 4
Claims (2)
熱転写媒体より構成され、該熱可塑性インク媒体のイン
クへの熱エネルギー供給が、該被転写媒体を介する熱伝
導により行なわれることを特徴とする、感熱転写印写装
置。(1) It is comprised of at least a heat supply section, a thermoplastic ink medium, and a thermal transfer medium, and the thermal energy is supplied to the ink of the thermoplastic ink medium by heat conduction via the transfer medium. A thermal transfer printing device.
熱可塑性インク媒体が少なくとも、支持層と熱可塑性イ
ンク層を有するインクシート、被転写媒体が受像紙であ
ることを特徴とする特許請求の範囲第１項に記載の感熱
転写印写装置。(2) a thermal head in which the heat supply section has a heating element;
2. The thermal transfer printing device according to claim 1, wherein the thermoplastic ink medium is an ink sheet having at least a support layer and a thermoplastic ink layer, and the transfer medium is an image receiving paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59077861A JPS60220767A (en) | 1984-04-18 | 1984-04-18 | Thermal transfer printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59077861A JPS60220767A (en) | 1984-04-18 | 1984-04-18 | Thermal transfer printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60220767A true JPS60220767A (en) | 1985-11-05 |
Family
ID=13645836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59077861A Pending JPS60220767A (en) | 1984-04-18 | 1984-04-18 | Thermal transfer printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60220767A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115906A (en) * | 1978-03-01 | 1979-09-08 | Nippon Telegraph & Telephone | Thermal recorder |
| JPS5914974A (en) * | 1982-07-16 | 1984-01-25 | Citizen Watch Co Ltd | Transfer type heat sensitive printer |
-
1984
- 1984-04-18 JP JP59077861A patent/JPS60220767A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115906A (en) * | 1978-03-01 | 1979-09-08 | Nippon Telegraph & Telephone | Thermal recorder |
| JPS5914974A (en) * | 1982-07-16 | 1984-01-25 | Citizen Watch Co Ltd | Transfer type heat sensitive printer |
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