JPS63125378A - Thermal transfer ink ribbon - Google Patents

Thermal transfer ink ribbon

Info

Publication number
JPS63125378A
JPS63125378A JP27228986A JP27228986A JPS63125378A JP S63125378 A JPS63125378 A JP S63125378A JP 27228986 A JP27228986 A JP 27228986A JP 27228986 A JP27228986 A JP 27228986A JP S63125378 A JPS63125378 A JP S63125378A
Authority
JP
Japan
Prior art keywords
base
ink
heat
thermal transfer
ink ribbon
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
Application number
JP27228986A
Other languages
Japanese (ja)
Inventor
Fumio Kozai
香西　文男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP27228986A priority Critical patent/JPS63125378A/en
Publication of JPS63125378A publication Critical patent/JPS63125378A/en
Pending legal-status Critical Current

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
    • B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

PURPOSE:To increase the temperature gradient of a heat-fusible ink at the part of a base so that the ink is broken along the part of the base at the time of release, by filling through-holes of the base having a low thermal conductivity with a filler having a thermal conductivity higher than that of the base, and providing the heat- fusible ink on the surface of the base. CONSTITUTION:A base film 24 comprises a base 112 formed of, for example, a paper, a cloth or a plastic having a relatively low thermal conductivity, which is provided with a multiplicity of through-holes, is impregnated with a filler 111 such as a plastic having a relatively high thermal conductivity, and has a thickness of, for example, several tens of micrometers. One side of the base film 112 is coated with a heat-fusible ink 20 in a thickness of several micrometers. The horizontal shape of the through-holes of the base 112 is tetragonal or hexagonal, and the pitch of the through-holes is, for example, about one half of the dot size of a thermal printing head. The heat generated by heat generating elements is conducted through the filler 111. As a result, a great temperature gradient is generated in the ink 20 at the part of the base 112. Therefore, when the ink is released, the ink is broken at the boundary of the base 112, and the outlines of characters or patterns transferred will be clear.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は熱転写用インクリボンの改良に関する。[Detailed description of the invention] [Industrial application field] This invention relates to improvements in ink ribbons for thermal transfer.

［従来の技術］ 第６図に従来の技術による熱転写用インクリボンの構成
を示す０図において、ベースフィルム（１１）は、例え
ばポリエステル等の厚さが数十ミクロンのプラスチック
フィルムであり、その表面に熱溶融性インク（１２）が
塗布されている。熱溶融性インク（１２）は、例えばカ
ルナウバ・ワックスまたはエステル・ワックス等に顔料
及び染料を混入した固体のインクであり、ベースフィル
ム（１１）の表面に厚さ数ミクロンに塗布されている。[Prior Art] In Fig. 6, which shows the structure of a thermal transfer ink ribbon according to the conventional art, the base film (11) is a plastic film made of, for example, polyester, and has a thickness of several tens of microns. A heat-melting ink (12) is applied to the surface. The heat-melting ink (12) is a solid ink made by mixing pigments and dyes into, for example, carnauba wax or ester wax, and is applied to the surface of the base film (11) to a thickness of several microns.

この様にして構成された熱転写インクリボンを用いて紙
に熱転写する場合には、熱溶融性インクの面を紙（１９
）の表面に密着させ、サーマル・プリントヘッド（２）
の発熱体（２１）をベースフィルム（１１）の面に密着
させる０発熱体（２１）は図示を省略した公知の制御手
段により所定の文字またはパターンに従って制御されて
発熱する。このようにして熱転写された後の熱転写イン
クリボンの表面を第７図に示す０図において、熱転写イ
ンクリボンの熱溶融性インク（１２）の文字ｒＨ，の部
分が転写されて剥離した状態が示されている。When thermally transferring onto paper using the thermal transfer ink ribbon configured in this way, the surface of the heat-melting ink is placed on the paper (19
) and place it in close contact with the surface of the thermal print head (2).
The heating element (21) is brought into close contact with the surface of the base film (11).The heating element (21) generates heat under control according to a predetermined character or pattern by a known control means (not shown). Figure 7 shows the surface of the thermal transfer ink ribbon after being thermally transferred in this way, and shows a state in which the portion of the heat-melting ink (12) marked rH on the thermal transfer ink ribbon has been transferred and peeled off. has been done.

［発明が解決しようとする問題点］ 前記の従来の熱転写インクリボンにおいては、熱溶融性
インク（１２）がサーマル・プリントヘッドの発熱体（
２１）の熱により溶融して紙面に転写される時、第６図
に示すように、発熱体（２１）の熱はベースフィルム（
１１）内を矢印（Ａ）に示す円錐形の方向に伝導する。[Problems to be Solved by the Invention] In the conventional thermal transfer ink ribbon described above, the heat-melting ink (12) is attached to the heating element (
When it is melted by the heat of the base film (21) and transferred to the paper surface, the heat of the heating element (21) is transferred to the base film (21), as shown in Figure 6.
11) Conduction is conducted within the conical direction shown by arrow (A).

その結果被加熱パターン部にある熱溶融性インク（１２
）の表面部の温度は発熱体（２１）の発熱面積に比較し
て広い範囲にわたって上昇し、その結果被加熱パターン
部の熱溶融インクの表面部では温度勾配がなだらかにな
る。従って熱溶融性インク（１２）の加熱付着される部
分と加熱されず付着しない部分との境界が鋭く明瞭にな
らず、熱転写インクリボンの転写によりはく離した熱溶
融性インクの例えば第７図に例示した文字「Ｈ」の輪郭
は転写時に引きちぎられて生じるジグザクな形となる。As a result, the heat-melting ink (12
) increases over a wider range than the heat generating area of the heating element (21), and as a result, the temperature gradient becomes gentler on the surface of the heat-melting ink in the pattern to be heated. Therefore, the boundary between the heat-adhering part of the heat-melting ink (12) and the non-heating and non-adhering part is not sharp and clear, as shown in FIG. 7, for example, of the heat-melting ink peeled off by transfer with the heat transfer ink ribbon The outline of the letter "H" is torn off during transfer, resulting in a zigzag shape.

その結果紙面に形成された画像の輪郭も不鮮明となり画
像品質の低下を招く問題点があった。またこのような画
像品質の低下は特に表面の粗い紙に転写する場合に著し
くなり、そのため表面平滑度の高い高価な紙を用いる必
要があった。As a result, the outline of the image formed on the paper surface becomes unclear, resulting in a problem of deterioration of image quality. Further, such a deterioration in image quality becomes particularly noticeable when transferring to paper with a rough surface, which necessitates the use of expensive paper with a high surface smoothness.

［問題点を解決するための手段］ この発明の熱転写用インクリボンは、所定の形状の貫通
孔を有し実質的に低い熱伝導率を有する基材の貫通孔に
、基材の熱伝導率より高い熱伝導率を有する充填材を充
填し、基材の表面に熱溶融性インクを設けている。[Means for Solving the Problems] The ink ribbon for thermal transfer of the present invention has a through hole in a base material having a predetermined shape and a substantially low thermal conductivity. It is filled with a filler having higher thermal conductivity, and a heat-melting ink is provided on the surface of the base material.

［作用］ 熱転写用インクリボンに与えられた熱のインクリボンの
表面に沿った方向への熱伝導は、熱伝導率の低い基材に
より阻止されるので、熱溶融性インクの温度勾配が基材
の部分で著しく大きくなりベースフィルムからはく離す
る時基材の部分に沿って破断する。[Function] Since the heat applied to the thermal transfer ink ribbon is prevented from being conducted in the direction along the surface of the ink ribbon by the base material with low thermal conductivity, the temperature gradient of the heat-melting ink is The film becomes significantly large in size and breaks along the base film when it is peeled off from the base film.

［実施例］ 第１図および第１図の部分拡大図である第２図にこの発
明の熱転写用インクリボンの実施例を示す。図において
ベースフィルム（２４）は例えば紙、布又は熱伝導性の
比較的低いプラスチックに多数の貫通孔を設けた基材（
１１２）に熱伝導性の比較的良好なプラスチック等の充
填材（１１１）を含浸させて構成されており、その厚さ
は例えば数１０ミクロンである。ベースフィルム（２４
）の片面には熱溶融性インク（２０）が塗布されている
。熱溶融性インク（２０）は例えばカルナウバ・ワック
スなどのワックス顛に顔料及び染料を混入してつくられ
た固体インクであり、塗布厚は数ミクロン程度である。[Example] FIG. 1 and FIG. 2, which is a partially enlarged view of FIG. 1, show an example of the ink ribbon for thermal transfer of the present invention. In the figure, the base film (24) is, for example, a base material (paper, cloth, or plastic with relatively low thermal conductivity) with a large number of through holes.
112) impregnated with a filler (111) such as plastic having relatively good thermal conductivity, and its thickness is, for example, several tens of microns. Base film (24
) is coated with heat-melting ink (20). The heat-melting ink (20) is a solid ink made by mixing pigments and dyes into wax, such as carnauba wax, and has a coating thickness of about several microns.

第２図において、基材（１１２）の貫通孔のピッチは例
えばサーマルプリントヘッドのドツトサイズの２分の１
程度になされている。このように構成された熱転写イン
クリボンを用いて熱転写する場合の構成を第３図に示す
０図において、熱転写インクリボンは被転写体である紙
（１９）とサーマルプリントヘッド（２）の発熱体（２
１）との間に図示を省略した紙送り機構により所定の圧
力ではさまれている。In FIG. 2, the pitch of the through holes in the base material (112) is, for example, half the dot size of the thermal print head.
It has been done to a certain extent. The configuration of thermal transfer using the thermal transfer ink ribbon configured in this way is shown in Figure 3. In Figure 0, the thermal transfer ink ribbon has two parts: paper (19) as the transfer target and the heating element of the thermal print head (2). (2
1) and is held at a predetermined pressure by a paper feeding mechanism (not shown).

発熱体（２１）の発熱により熱転写インクリボンの熱溶
融性インク（２０）は溶融して紙（１９）の表面に転写
される。この時、発熱体（２１）からベースフィルム（
２４）を介して熱溶融性インク（２０）に伝導する熱は
、熱伝導性の低い基材（１１２）によってベースフィル
ム（２４）の面に沿った方向への熱伝導が阻止される。Due to the heat generated by the heating element (21), the heat-melting ink (20) of the thermal transfer ink ribbon is melted and transferred onto the surface of the paper (19). At this time, from the heating element (21) to the base film (
The heat conducted to the heat-melting ink (20) via the base film (24) is prevented from being conducted in the direction along the surface of the base film (24) by the base material (112) having low thermal conductivity.

その結果発熱体（２１）からの熱は充填材（１１１）を
介して発熱体（２１）に対向する熱溶融性インク（２０
）の部分に集中的に伝導される。その結果熱溶融性イン
ク（２０）の温度は基材（１１２）の部分で大きな温度
勾配を生じることになり、熱溶融性インクが剥離される
時この基材（１１２）との境界で破断される。As a result, heat from the heating element (21) is transferred to the heat-melting ink (20) facing the heating element (21) via the filler (111).
) is conducted intensively. As a result, the temperature of the hot-melt ink (20) will create a large temperature gradient at the base material (112), and when the hot-melt ink is peeled off, it will break at the boundary with the base material (112). Ru.

基材（１１２）の貫通孔のピッチは例えばサーマルプリ
ンタのドツトサイズの２分の１程度の約０．１ｍｍであ
るので、基材（１１２）に沿って破断される場合の熱溶
融性インク（２０）の境界線は転写されるべき文字又は
パターンの境界線に実質的に一致する。The pitch of the through holes in the base material (112) is, for example, approximately 0.1 mm, which is about half the dot size of a thermal printer. ) borders substantially correspond to the borders of the characters or patterns to be transferred.

第４図にこの実施例による熱転写後の熱転写インクリボ
ンの表面を示す０図において文字ｒ）（Ｊの熱溶融性イ
ンクが剥離された状態を示す０図に示すように境界線は
明瞭であり従って転写された文字又はパターンの輪郭は
明瞭になる。Figure 4 shows the surface of the thermal transfer ink ribbon after thermal transfer according to this example. In figure 0, the boundary line is clear as shown in figure 0, which shows the state in which the heat-melting ink of letter r) (J) has been peeled off. Therefore, the outline of the transferred characters or patterns becomes clear.

第５図にこの発明のインクリボンの第２の実施例を示す
、この実施例においては、ベースフィルム（２４）の熱
伝導性の低い基材（１１４）の貫通孔の平面形状を六角
形としている。充填材（１１１）として熱伝導性の良好
なプラスチック等を用いることは第１の実施例と同様で
ある。FIG. 5 shows a second embodiment of the ink ribbon of the present invention. In this embodiment, the planar shape of the through hole in the base material (114) with low thermal conductivity of the base film (24) is hexagonal. There is. As in the first embodiment, plastic or the like having good thermal conductivity is used as the filler (111).

［発明の効果］ この発明によれば、熱転写用インクリボンのベースフィ
ルム（２４）を熱伝導性の実質的に低い基材（１１２）
と熱伝導性が基材（１１２）より高い充填材（１１１）
とにより構成することにより、加熱された熱溶融性イン
クがベースフィルム（２４）から剥離する時、基材（１
１２）に沿って破断されるので転写されるべき文字又は
パターンの輪郭に実質的に一致する形状をもって剥離す
る。その結果転写された文字又はパターンの輪郭が明瞭
になりプリントの品質が向上する。また他の効果として
、表面平滑度の低い安価な紙を用いた場合でも良い品質
の熱転写像を得ることができる。[Effects of the Invention] According to the present invention, the base film (24) of the ink ribbon for thermal transfer is made of a base material (112) having substantially low thermal conductivity.
and a filler (111) whose thermal conductivity is higher than that of the base material (112).
When the heated thermofusible ink is peeled off from the base film (24), the base material (1
12), so that it is peeled off in a shape that substantially matches the outline of the character or pattern to be transferred. As a result, the outline of the transferred characters or patterns becomes clear and the quality of the print is improved. Another effect is that even when using inexpensive paper with low surface smoothness, a thermal transfer image of good quality can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明の熱転写用インクリボンの第１の実施
例の斜視図、第２図は第１図に示す実施例の部分拡大図
、第３図はこの発明の熱転写用インクリボンの転写時に
熱溶融性インクが剥離する状況を示す断面図、第４図は
この発明の熱転写用インクリボンの転写後の熱溶融性イ
ンクが剥離した状況を示す斜視図、第５図はこの発明の
熱転写用インクリボンの第２の実施例を示す平面図、第
６図は従来の例の熱転写用インクリボンの斜視図、第７
図は第６図に示す従来の例のインクリボンの転写後の熱
溶融性インクの剥離した状況を示す図である。 ２０：熱溶融性インク ２４：ベースフィルム １１１：充填材 １１２：基材FIG. 1 is a perspective view of a first embodiment of the ink ribbon for thermal transfer of the present invention, FIG. 2 is a partially enlarged view of the embodiment shown in FIG. 1, and FIG. 3 is a transfer of the ink ribbon for thermal transfer of the present invention. FIG. 4 is a cross-sectional view showing a situation where the heat-melt ink peels off at times, FIG. 4 is a perspective view showing a situation where the heat-melt ink peels off after transfer of the ink ribbon for thermal transfer of the present invention, and FIG. FIG. 6 is a plan view showing a second embodiment of an ink ribbon for thermal transfer; FIG. 6 is a perspective view of a conventional ink ribbon for thermal transfer;
This figure is a diagram showing how the heat-melting ink of the conventional ink ribbon shown in FIG. 6 is peeled off after transfer. 20: Hot melt ink 24: Base film 111: Filler 112: Base material

Claims (6)

【特許請求の範囲】[Claims] （１）所定の形状で所定の配置をなされた多数の貫通孔
を有し実質的に熱伝導率の低い材質によりシート状に構
成された基材、 前記基材の貫通孔に充填され前記基材の熱伝導率より高
い熱伝導率を有する充填材、及び前記基材と充填材の表
面に塗布された熱溶融性インク を具備する熱転写用インクリボン。(1) A base material having a large number of through holes in a predetermined shape and a predetermined arrangement and configured in a sheet shape from a material with substantially low thermal conductivity; An ink ribbon for thermal transfer comprising a filler having a thermal conductivity higher than that of the material, and a heat-melting ink applied to the surfaces of the base material and the filler. （２）前記基材の貫通孔の形状が四角形である特許請求
の範囲第１項記載の熱転写用インクリボン。(2) The ink ribbon for thermal transfer according to claim 1, wherein the through-holes in the base material have a rectangular shape. （３）前記基材の貫通孔の形状が鈍角六角形である特許
請求の範囲第１項記載の熱転写用インクリボン。(3) The ink ribbon for thermal transfer according to claim 1, wherein the through hole of the base material has an obtuse hexagonal shape. （４）前記基材が紙である特許請求の範囲第１項記載の
熱転写用インクリボン。(4) The ink ribbon for thermal transfer according to claim 1, wherein the base material is paper. （５）前記基材が布である特許請求の範囲第１項記載の
熱転写用インクリボン。(5) The ink ribbon for thermal transfer according to claim 1, wherein the base material is cloth. （６）前記基材が貫通孔を有するプラスチックフィルム
である特許請求の範囲第１項記載の熱転写用インクリボ
ン。(6) The ink ribbon for thermal transfer according to claim 1, wherein the base material is a plastic film having through holes.
JP27228986A 1986-11-15 1986-11-15 Thermal transfer ink ribbon Pending JPS63125378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27228986A JPS63125378A (en) 1986-11-15 1986-11-15 Thermal transfer ink ribbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27228986A JPS63125378A (en) 1986-11-15 1986-11-15 Thermal transfer ink ribbon

Publications (1)

Publication Number Publication Date
JPS63125378A true JPS63125378A (en) 1988-05-28

Family

ID=17511782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27228986A Pending JPS63125378A (en) 1986-11-15 1986-11-15 Thermal transfer ink ribbon

Country Status (1)

Country Link
JP (1) JPS63125378A (en)

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