JPS6049998A - Ink sheet for thermal transfer recording - Google Patents
Ink sheet for thermal transfer recordingInfo
- Publication number
- JPS6049998A JPS6049998A JP58159874A JP15987483A JPS6049998A JP S6049998 A JPS6049998 A JP S6049998A JP 58159874 A JP58159874 A JP 58159874A JP 15987483 A JP15987483 A JP 15987483A JP S6049998 A JPS6049998 A JP S6049998A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- adhesive layer
- ink sheet
- thermal transfer
- transfer recording
- 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
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
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (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】
（ａ） 発明の技術分野
本発明は繰り返し転写して用いることができる熱転写記
録用インクシートに係り、特に基材とインク層とを接着
する中間接着層を改良した熱転写記録用インクシートに
関する。Detailed Description of the Invention (a) Technical Field of the Invention The present invention relates to an ink sheet for thermal transfer recording that can be used by repeated transfer, and in particular to a thermal transfer recording ink sheet with an improved intermediate adhesive layer that adheres an ink layer to a base material. This invention relates to a recording ink sheet.
ｆｂｌ 技術の背景
コンデンサ紙よりなる基材上に樹脂層よりなる中間接着
層を形成し、該接着層の上に染料、および常温でば固相
のパラフィンワックスのような低融点材、および金属酸
化物あるいはカーボンブランクのような充填材を混合し
たインク層を積層形成し、前記基材側より印字情報によ
り局部的に加熱された発熱素子を有するサーマル印字ヘ
ッドを押圧して、インクシートのインクを局部的に溶融
し、該溶融したインクをインクシート上に設置している
記録紙に転写して印字を転写する熱転写記録方法は周知
である。Background of the fbl technology An intermediate adhesive layer made of a resin layer is formed on a base material made of capacitor paper, and a dye, a low melting point material such as paraffin wax which is solid at room temperature, and metal oxide are applied on the adhesive layer. A thermal print head having a heating element that is locally heated by printing information is pressed from the base material side to ink on the ink sheet. A thermal transfer recording method is well known in which ink is locally melted and the melted ink is transferred to a recording paper placed on an ink sheet to transfer print.
この熱転写記録方法は、印刷の際に生じる音が静かで、
また普通紙を用いて印刷できるので、従来の感熱紙を用
いて印刷を行った際に生じる記録紙の化学変化も生じず
、記録の保存性が優れていル等、多くの利点を有してい
る。This thermal transfer recording method produces quiet printing noise.
In addition, since it can be printed using plain paper, there are no chemical changes in the recording paper that occur when printing with conventional thermal paper, and it has many advantages, such as excellent archival stability. There is.
（（Ｊ 従来技術と問題点
かかる熱転写記録用インクシートは図に示すように厚さ
８μｍのコンデンサ紙よりなる基材１上にポリアミド樹
脂をトルエンおよびインプロビールアルコールに熔解し
、これを厚さ８μｍにバーコータ塗布装置にて塗布後、
乾燥器にて乾燥して中間接着層２を形成している。この
中間接着層２上には脂肪酸アミドおよびパラフィンワッ
クスよりなる低融点材と染料（商品名；カヤセントブラ
ツク、日本北東社製）と充填材のカーボンブラック（日
本北東社製）とをアセトンにて溶解、混合した後、八−
コータ塗布装置にて厚さ２０μｍに塗布後、乾燥器にて
乾燥してインク層３を形成して熱転写記録用インクシー
ト４を形成していた。(J Prior Art and Problems As shown in the figure, the ink sheet for thermal transfer recording is made by dissolving polyamide resin in toluene and improvyl alcohol on a base material 1 made of capacitor paper with a thickness of 8 μm. After coating with bar coater coating equipment,
The intermediate adhesive layer 2 is formed by drying in a dryer. On this intermediate adhesive layer 2, a low melting point material consisting of fatty acid amide and paraffin wax, a dye (trade name: Kayasent Black, manufactured by Nihon Tohoku Co., Ltd.), and a filler carbon black (manufactured by Nippon Tohoku Co., Ltd.) are added in acetone. After dissolving and mixing, 8-
After coating to a thickness of 20 μm using a coater coating device, the ink layer 3 was formed by drying in a drier to form an ink sheet 4 for thermal transfer recording.
ところで基材１の下面よりサーマル印字ヘッドを押圧し
てインクＮ３のインクを溶解し、インク層３上に設置し
ている記録紙上にインクを転写する際、中間接着層２の
厚さは薄い方がインク層にサーマル印字ヘッドの熱が伝
達しやすい。特にサーマル印字ヘッドに印加する印加エ
ネルギーを低くして、中間調記録を得る時には中間接着
層２の厚さが薄い熱転写記録用インクシートが要望され
る。By the way, when pressing the thermal print head from the bottom surface of the base material 1 to dissolve the ink N3 and transfer the ink onto the recording paper placed on the ink layer 3, the intermediate adhesive layer 2 is thinner. However, the heat from the thermal print head is easily transferred to the ink layer. In particular, when obtaining halftone recording by lowering the energy applied to the thermal print head, an ink sheet for thermal transfer recording in which the intermediate adhesive layer 2 is thin is desired.
然し従来のインクシートに於いては、中間接着層の厚さ
を８μｍ以下にすると、前記ポリアミド樹脂よりなる中
間接着層は一般に基材に対しての接着強度が弱いので、
熱転写時にインク層が基材より剥がれて、転写像に転写
むらができる問題点を生じている。However, in conventional ink sheets, when the thickness of the intermediate adhesive layer is set to 8 μm or less, the intermediate adhesive layer made of the polyamide resin generally has weak adhesive strength to the base material.
This poses a problem in that the ink layer peels off from the substrate during thermal transfer, resulting in uneven transfer in the transferred image.
Ｔｄｌ 発明の目的
本発明は上記した問題点を除去し、中間接着層ヲ薄＜シ
てサーマル印字ヘッドの熱がインク層に伝達し易くし、
かつインク層に対する接着強度も低下しない、新規な熱
転写記録用インクシートの提供を目的とするものである
。OBJECT OF THE INVENTION The present invention eliminates the above-mentioned problems by making the intermediate adhesive layer thinner so that the heat of the thermal print head is easily transmitted to the ink layer,
The object of the present invention is to provide a novel ink sheet for thermal transfer recording that does not reduce adhesive strength to the ink layer.
（Ｑｌ 発明の構成
かかる目的を達成するための本発明の熱転写記録用イン
クシートは、基材上に中間接着層、およびインク層を順
次積層形成した構成に於いて、前記中間接着層をポリエ
ステル樹脂とポリアミド樹脂の混合物で形成したことを
特徴と、するものである。(Ql Structure of the Invention To achieve the above object, the ink sheet for thermal transfer recording of the present invention has a structure in which an intermediate adhesive layer and an ink layer are sequentially laminated on a base material, and the intermediate adhesive layer is made of polyester resin. It is characterized by being formed from a mixture of and polyamide resin.
つまり従来の中間層形成材料として用いられているポリ
アミド樹脂は一般にインク層に対する接着力は十分であ
るが、基材との接着力は十分でない。そこでインク層に
対しては接着力が弱いが、基材とは十分の接着力を持つ
ポリエステル樹脂と前記ポリアミド樹脂とを混合し、こ
の混合材を中間接着層として用いることで、インク層と
基材との両方に対して接着強度の大きい中間接着層を有
する熱転写記録用インクシートを得ようとするものであ
る。In other words, polyamide resins used as conventional intermediate layer forming materials generally have sufficient adhesive strength to the ink layer, but do not have sufficient adhesive strength to the base material. Therefore, by mixing a polyester resin and the above-mentioned polyamide resin, which have weak adhesive strength to the ink layer but sufficient adhesive strength to the base material, and using this mixed material as an intermediate adhesive layer, the ink layer and the base material can be bonded together. The object of the present invention is to obtain an ink sheet for thermal transfer recording having an intermediate adhesive layer having a high adhesive strength to both the material and the material.
（ｆ） 発明の実施例
以下、本発明の一実施例につき図面を用いながう詳細に
説明する。(f) Embodiment of the Invention Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
本発明の熱転写記録用インクシートは図に示すように厚
さ８μｍのコンデンサ紙１上に中間接着Ｎ２として、ポ
リエステル樹脂とポリアミド樹脂とを重量比で２対１に
混合した樹脂が塗布形成されている。さらに該中間接着
層２の上には、低融点材として脂肪酸アミド（日本油脂
社Ｍ）を２重量部、パラフィンワックス（日本精蝋株式
会社製）を１重量部、染料（商品名；カヤセントブラッ
ク、日本北東社製）を１重量部、充填材としてカーボン
ブランク（日本北東社製）を１重量部からなるインク層
が厚さ２０μｍで形成されている。As shown in the figure, the ink sheet for thermal transfer recording of the present invention is formed by coating a resin in which a polyester resin and a polyamide resin are mixed at a weight ratio of 2:1 as an intermediate adhesive N2 on a capacitor paper 1 having a thickness of 8 μm. There is. Furthermore, on the intermediate adhesive layer 2, 2 parts by weight of fatty acid amide (manufactured by NOF Corporation M) as a low-melting point material, 1 part by weight of paraffin wax (manufactured by Nippon Seiro Co., Ltd.), and a dye (trade name: Kayasent) The ink layer was formed to have a thickness of 20 μm and was composed of 1 part by weight of black (manufactured by Nihon Tohoku Co., Ltd.) and 1 part by weight of carbon blank (manufactured by Nippon Tohoku Co., Ltd.) as a filler.
かかる本発明の熱転写記録用インクシートを形成するに
は、厚さ８μｍのコンデンサ紙よりなる基材１上にポリ
エステル樹脂とポリアミド樹脂とを重量比で２対１とし
てトルエンおよびイソプロピルアルコールの混合溶剤を
用いてボールミルにて十分混合した後、２μｍの厚さに
バーコータ塗布装置を用いて塗布後、乾燥器にて乾燥し
て中間接着層２を形成する。その後、中間接着Ｎ２の上
に低融点材として脂肪酸アミド（日本油脂社製）を２重
量部、パラフィンワックス（日本精蝋株式会社Ｍ）を１
重量部、染料（商品名；カヤセントブランク、日本北東
社製）を１重量部、充填材としてカーボンブランク（日
本北東社製）をＩＭ量部、に対して溶剤としてアセトン
３０重量部を用いてボールミルにて十分混合した後、分
散した溶液をバーコータ塗布装置により２０μｍの厚さ
で塗布し、１０分間自然乾燥した後、９５°Ｃの温度で
１秒間加熱後、ただちに２０℃の温度迄急冷してインク
層を形成した。In order to form such an ink sheet for thermal transfer recording of the present invention, a mixed solvent of toluene and isopropyl alcohol is applied to a base material 1 made of capacitor paper with a thickness of 8 μm with a weight ratio of polyester resin and polyamide resin of 2:1. After thorough mixing in a ball mill, the mixture was coated to a thickness of 2 μm using a bar coater coating device, and then dried in a drier to form an intermediate adhesive layer 2. After that, 2 parts by weight of fatty acid amide (manufactured by NOF Corporation) and 1 part of paraffin wax (Nippon Seiro Co., Ltd. M) were added as low melting point materials on the intermediate adhesive N2.
Part by weight, 1 part by weight of dye (trade name: Kayasent Blank, manufactured by Nihon Tohoku Co., Ltd.), IM part of carbon blank (manufactured by Nippon Tohoku Co., Ltd.) as a filler, and 30 parts by weight of acetone as a solvent. After thorough mixing in a ball mill, the dispersed solution was applied to a thickness of 20 μm using a bar coater coating device, air-dried for 10 minutes, heated for 1 second at a temperature of 95°C, and immediately rapidly cooled to a temperature of 20°C. An ink layer was formed.
このようにして形成した熱転写記録用インクシート上に
記録紙を設置し、サーマルプリンタを用いて方形の真黒
の印字を転写するいわゆるベタ転写を、サーマル印字ヘ
ッドの発熱素子に印加する電力を０．９Ｗ／ドツトとし
、パルス傭を１ ｍ５ｅｃとした転写条件で行ったとこ
ろ、１回目の転写で記録濃度（０，Ｄ）が１．３の鮮明
な印字が得られ、しかも繰り返して１０回インクシート
の同じ箇所を転写してもインク層の剥がれが生じること
ばなく、インク層および基材に対する中間接着層の接着
力が良いインクシートが得られた。また本発明のインク
シートと比較するために従来のポリアミド樹脂を中間接
着層として用いたインクシートを用意し、その上に記録
紙を重ね、本発明のインクシートを用いた時と同様な転
写条件で記録紙にインクを転写したところ、記録濃度は
１．１と低下し、本発明のインクシートの方がサーマル
印字ヘッドの熱がインク層に伝達しやすく、記録濃度が
従来のインクシートより２０％向上した、即ち記録感度
が約２０％向上したインクシートが得られたことが判明
した。A recording paper is placed on the thermal transfer recording ink sheet formed in this way, and a thermal printer is used to transfer a rectangular jet black print, so-called solid transfer, with the electric power applied to the heating element of the thermal print head set to 0. When the transfer was carried out under the conditions of 9W/dot and a pulse duration of 1 m5ec, a clear print with a recording density (0, D) of 1.3 was obtained in the first transfer, and it was repeated 10 times on the ink sheet. An ink sheet was obtained in which the ink layer did not peel off even when the same portion was transferred, and the intermediate adhesive layer had good adhesion to the ink layer and the substrate. In addition, in order to compare with the ink sheet of the present invention, an ink sheet using a conventional polyamide resin as an intermediate adhesive layer was prepared, a recording paper was layered on top of the ink sheet, and the transfer conditions were the same as when using the ink sheet of the present invention. When the ink was transferred to recording paper, the recording density was as low as 1.1, and the ink sheet of the present invention allows the heat from the thermal print head to be transferred to the ink layer more easily, resulting in a recording density of 20% lower than that of the conventional ink sheet. %, that is, an ink sheet was obtained in which the recording sensitivity was improved by about 20%.
また本発明のインクシー７．トによれば、中間接着層の
厚さを２μｍの厚さ迄、薄クシても基材に対する接着強
度は十分あり、多数回の繰り返し転写でインク層が剥が
れることはなく、このように中間接着層の厚さを薄くす
ることでサーマル印字ヘッドの熱がインク層に効率良く
伝達し、そのため中間調記録を得るためにサーマル印字
へンドに印加するエネルギーを低エネルギーとしても十
分鮮明な印字が実現できる効果がある。Also, the ink sea 7 of the present invention. According to the author, even if the thickness of the intermediate adhesive layer is reduced to 2 μm, the adhesive strength to the substrate is sufficient, and the ink layer will not peel off even after repeated transfers. By reducing the thickness of the layer, heat from the thermal print head is efficiently transferred to the ink layer, resulting in sufficiently clear printing even when the energy applied to the thermal print head is low to obtain halftone recording. There is an effect that can be done.
（ｇｌ 発明の効果
以上述べたように本発明の熱転写記録用インクシートに
よれば、中間接着層の厚さを薄くしても基材との接着強
度が十分保たれ、そのためサーマル印字ヘッドに印加す
るエネルギーを低エネルギーとしても十分サーマル印字
ヘッドの熱がインク層に効率良く伝達する高感度の熱転
写記録用インクシートが得られる効果が生じる。(gl Effects of the Invention As described above, according to the ink sheet for thermal transfer recording of the present invention, the adhesive strength with the base material is maintained sufficiently even if the thickness of the intermediate adhesive layer is reduced, and therefore Even if the energy used is low, it is possible to obtain a highly sensitive thermal transfer recording ink sheet in which the heat of the thermal print head is sufficiently efficiently transferred to the ink layer.
図は、熱転写記録用インクシートの断面図である。
図に於いて、１は基材、２は中間接着層、３はインク層
、４は熱転写記録用インクシートを示す。The figure is a sectional view of an ink sheet for thermal transfer recording. In the figure, 1 is a base material, 2 is an intermediate adhesive layer, 3 is an ink layer, and 4 is an ink sheet for thermal transfer recording.
Claims (1)
た構成に於いて、前記中間接着層をポリエステル樹脂と
ポリアミド樹脂の混合物で形成したことを特徴とする熱
転写記録用インクシート。1. An ink sheet for thermal transfer recording, characterized in that an intermediate adhesive layer and an ink layer are sequentially laminated on a base material, and the intermediate adhesive layer is made of a mixture of polyester resin and polyamide resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58159874A JPS6049998A (en) | 1983-08-30 | 1983-08-30 | Ink sheet for thermal transfer recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58159874A JPS6049998A (en) | 1983-08-30 | 1983-08-30 | Ink sheet for thermal transfer recording |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6049998A true JPS6049998A (en) | 1985-03-19 |
| JPH0413155B2 JPH0413155B2 (en) | 1992-03-06 |
Family
ID=15703088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58159874A Granted JPS6049998A (en) | 1983-08-30 | 1983-08-30 | Ink sheet for thermal transfer recording |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6049998A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62196184A (en) * | 1985-12-24 | 1987-08-29 | イ−ストマン コダック カンパニ− | Dyestuff-barrier for dyestuff-donor member used for heat transfer dyestuff and undercoat |
| JPS6360794A (en) * | 1986-09-01 | 1988-03-16 | Toppan Printing Co Ltd | Thermal transfer recording medium |
| EP0263457A2 (en) * | 1986-10-07 | 1988-04-13 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Subbing layer for dye-donor element used in thermal dye transfer |
| EP0268179A2 (en) * | 1986-11-10 | 1988-05-25 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Inorganic polymer subbing layer for dye-donor element used in thermal dye transfer |
| JPS63137891A (en) * | 1986-11-29 | 1988-06-09 | Toppan Printing Co Ltd | Thermal transfer ink sheet |
| EP0311841A2 (en) * | 1987-10-13 | 1989-04-19 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Polymeric subbing layer for slipping layer of dye-donor element used in thermal dye transfer |
| JPH01160670A (en) * | 1987-11-17 | 1989-06-23 | Pelikan Ag | Heat transfer ribbon |
| EP0650412A1 (en) * | 1992-07-16 | 1995-05-03 | Ici Plc | Thermal transfer printing receiver sheet. |
| WO2008021294A1 (en) * | 2006-08-17 | 2008-02-21 | E. I. Du Pont De Nemours And Company | Thermal transfer imaging element and method of using same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105579A (en) * | 1978-11-07 | 1980-08-13 | Nippon Telegr & Teleph Corp <Ntt> | Multiple time transfer material having heat sensitivity |
| JPS58116193A (en) * | 1981-12-29 | 1983-07-11 | Fujitsu Ltd | Manufacture of heat transfer ink sheet |
-
1983
- 1983-08-30 JP JP58159874A patent/JPS6049998A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105579A (en) * | 1978-11-07 | 1980-08-13 | Nippon Telegr & Teleph Corp <Ntt> | Multiple time transfer material having heat sensitivity |
| JPS58116193A (en) * | 1981-12-29 | 1983-07-11 | Fujitsu Ltd | Manufacture of heat transfer ink sheet |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0364317B2 (en) * | 1985-12-24 | 1991-10-04 | Eastman Kodak Co | |
| JPS62202789A (en) * | 1985-12-24 | 1987-09-07 | イ−ストマン コダック カンパニ− | Dyestuff interrupting/undercoating layer for dyestuff dativeelement used for thermal dyestuff transfer |
| JPS62196184A (en) * | 1985-12-24 | 1987-08-29 | イ−ストマン コダック カンパニ− | Dyestuff-barrier for dyestuff-donor member used for heat transfer dyestuff and undercoat |
| JPH0364318B2 (en) * | 1985-12-24 | 1991-10-04 | Eastman Kodak Co | |
| JPS6360794A (en) * | 1986-09-01 | 1988-03-16 | Toppan Printing Co Ltd | Thermal transfer recording medium |
| JPH0455600B2 (en) * | 1986-09-01 | 1992-09-03 | Toppan Printing Co Ltd | |
| EP0263457A2 (en) * | 1986-10-07 | 1988-04-13 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Subbing layer for dye-donor element used in thermal dye transfer |
| EP0268179A2 (en) * | 1986-11-10 | 1988-05-25 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Inorganic polymer subbing layer for dye-donor element used in thermal dye transfer |
| JPS63137891A (en) * | 1986-11-29 | 1988-06-09 | Toppan Printing Co Ltd | Thermal transfer ink sheet |
| EP0311841A2 (en) * | 1987-10-13 | 1989-04-19 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Polymeric subbing layer for slipping layer of dye-donor element used in thermal dye transfer |
| JPH01160670A (en) * | 1987-11-17 | 1989-06-23 | Pelikan Ag | Heat transfer ribbon |
| EP0650412A1 (en) * | 1992-07-16 | 1995-05-03 | Ici Plc | Thermal transfer printing receiver sheet. |
| WO2008021294A1 (en) * | 2006-08-17 | 2008-02-21 | E. I. Du Pont De Nemours And Company | Thermal transfer imaging element and method of using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0413155B2 (en) | 1992-03-06 |
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