JPS6064896A - Thermal transfer recording ink sheet - Google Patents
Thermal transfer recording ink sheetInfo
- Publication number
- JPS6064896A JPS6064896A JP58175098A JP17509883A JPS6064896A JP S6064896 A JPS6064896 A JP S6064896A JP 58175098 A JP58175098 A JP 58175098A JP 17509883 A JP17509883 A JP 17509883A JP S6064896 A JPS6064896 A JP S6064896A
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- low
- dye
- low melting
- thermal transfer
- 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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は熱転写記録用インクシートに係り、特に中間調
記録に適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, and particularly to an ink sheet for thermal transfer recording suitable for halftone recording.
山) 技術の背景
コンデンサ紙のような基材上にポリアミド樹脂のような
中間接着層を介して、有機顔料、無機顔料、金属粉末の
ような微粉末からなる充填材の空隙に満たされた常温で
は固体の染料および低融点材等からなるインク層を設け
て熱転写記録用インクシートを形成し、該熱転写記録用
インクシートの基材側より印字情報により部分的に加熱
されたサーマル印字ヘッドを押圧して前記インク層のイ
ンクを部分的に溶融し、この溶融したインクを記録紙上
に転写する熱転写記録方法は周知である。Background of the technology Capacitors are placed on a base material such as paper, through an intermediate adhesive layer such as polyamide resin, and filled with voids of a filler consisting of fine powders such as organic pigments, inorganic pigments, and metal powders at room temperature. Then, an ink layer made of a solid dye, a low melting point material, etc. is provided to form an ink sheet for thermal transfer recording, and a thermal print head that is partially heated by printing information is pressed from the base material side of the ink sheet for thermal transfer recording. A thermal transfer recording method in which the ink in the ink layer is partially melted and the melted ink is transferred onto recording paper is well known.
かかかる熱転写記録方法は印刷の際に生じる音が静かで
、普通紙を用いて印刷することができ、感熱紙を用いて
印刷した場合に起こる化学変化も生じず、記録の保存特
性が優れている等、多数の特徴を有している。This thermal transfer recording method makes no noise during printing, can be printed on plain paper, does not cause chemical changes that occur when printing on thermal paper, and has excellent recording preservation characteristics. It has many characteristics such as:
(C1従来技術と問題点
最近、このような熱転写記録方法に於いても、従来の黒
“1″、白(地肌部)“0”の2値の印字に代わって、
黒“1”、白(地肌部)“0”の間の中間調の記録が望
まれるようになってきている。従来、中間調記録を得る
方法としてサーマル印字ヘッドに印加する印加エネルギ
ーの値を変化させることにより、熱転写記録用インクシ
ートの充填材のような微粉末に囲まれた常温では固相の
インク層が溶融して記録紙にしみ出す、しみたし量を制
御することで中間調記録を得ていた。(C1 Prior art and problems) Recently, even in such thermal transfer recording methods, instead of the conventional binary printing of black "1" and white (background) "0",
It has become desirable to record intermediate tones between black "1" and white (background) "0". Conventionally, as a method to obtain halftone recording, by changing the value of the applied energy applied to the thermal print head, the ink layer, which is in a solid phase at room temperature surrounded by fine powder such as the filler of an ink sheet for thermal transfer recording, is Halftone recording was obtained by controlling the amount of melting and seeping onto the recording paper.
然し、サーマル印字ヘッドに印加するエネルギーを低エ
ネルギーとした時、記録紙上に転写される転写像には転
写むらが起こる等の問題点を生じていた。However, when the energy applied to the thermal print head is set to low energy, problems such as transfer unevenness occur in the transferred image transferred onto the recording paper.
(dl 発明の目的
本発明は上記した問題点を除去し、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た場合でも、
濃淡諧調の優れた中間調記録が可能な新規な熱転写記録
用インクシートを提供することを目的とするものである
。(dl Purpose of the Invention The present invention eliminates the above-mentioned problems, and even when the energy applied to the thermal print head is set to low energy,
The object of the present invention is to provide a new ink sheet for thermal transfer recording that is capable of recording halftones with excellent gradation.
tel 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、基材上に染料、低融点材、充填材からなる
インク層を設けてなる熱転写記録用インクシートに於い
て、前記インク層に融点の異なる少なくとも二種類以上
の低融点材を含み、かつ融点の低い低融点材程、染料と
の相溶性が低いことを特徴とするものである。tel Structure of the Invention To achieve the above object, the ink sheet for thermal transfer recording of the present invention is an ink sheet for thermal transfer recording comprising an ink layer comprising a dye, a low melting point material, and a filler on a base material. The ink layer includes at least two types of low melting point materials having different melting points, and the lower the melting point of the low melting point material, the lower the compatibility with the dye.
ff) 発明の実施例
図は、本発明に係る熱転写記録用インクシートの断面図
で、図示するように厚さ10μmのコンデンサ紙よりな
る基材1上には、厚さ2μmのポリ層3が塗布形成され
ている。ff) Embodiment of the Invention The figure is a cross-sectional view of an ink sheet for thermal transfer recording according to the present invention. As shown in the figure, a poly layer 3 with a thickness of 2 μm is formed on a base material 1 made of capacitor paper with a thickness of 10 μm. It is formed by coating.
かかる熱転写記録用インクシートを形成するには、厚さ
10μmのコンデンサ紙よりなる基材1上にポリエステ
ル樹脂をトルエンよりなる溶剤に熔解した溶液をバーコ
ータ塗布装置により厚さ2μmで塗布して中間接着層2
を形成する。この中間接着層2の上には、ショ糖エステ
ル(日本油脂社製)のような融点が42℃と低い値を示
し、後述する染料との相溶性の低い低融点材が1重量部
、脂肪酸アミド(日本油脂社製)のような融点が77℃
と高い値を示し、後述する染料との相溶性がショ糖エス
テルよりも高い低融点材が1.5重量部、染料のカヤセ
ントブランク(日本化薬社製)が1重量部、充填材のカ
ーボンブランク(日本化薬社製)が1重量部、それぞれ
アセトンの溶剤に熔解混合して十分分散した溶液を、バ
ーコータ塗布装置により厚さ10μmにて塗布形成後、
乾燥器にて乾燥して本発明の熱転写記録用インクシート
を形成した。To form such an ink sheet for thermal transfer recording, a solution of polyester resin dissolved in a solvent of toluene is applied to a thickness of 2 μm on a base material 1 made of capacitor paper with a thickness of 10 μm using a bar coater coating device, and an intermediate adhesive is formed. layer 2
form. On this intermediate adhesive layer 2, 1 part by weight of a low melting point material such as sucrose ester (manufactured by NOF Corporation), which has a low melting point of 42°C and has low compatibility with dyes described below, and 1 part by weight of a fatty acid Melting point is 77℃ like amide (manufactured by NOF Corporation)
1.5 parts by weight of the low-melting point material, which shows a high value and has higher compatibility with the dye described below than sucrose ester, 1 part by weight of the dye Kayascent Blank (manufactured by Nippon Kayaku Co., Ltd.), and the filler. A solution in which 1 part by weight of carbon blank (manufactured by Nippon Kayaku Co., Ltd.) was melted and mixed in an acetone solvent and sufficiently dispersed was coated with a bar coater coating device to a thickness of 10 μm, and then
It was dried in a dryer to form an ink sheet for thermal transfer recording of the present invention.
このような本発明の熱転写記録用インクシート上に記録
紙を重ねた状態でサーマルファクシミリ装置に設置する
。そしてこのサーマルファクシミリ装置のサーマル印字
ヘッドに印加する印加電力を10W/fi2とし、この
印加電力の印加パルス幅を4m5ecとした状態で、記
録紙上に方形の真黒のベタ転写を行ったところ、記録濃
度(0,D)が1.2の均質なベタ転写像が得られた。The ink sheet for thermal transfer recording of the present invention is placed on top of the recording paper and then installed in a thermal facsimile apparatus. When the electric power applied to the thermal print head of this thermal facsimile device was set to 10 W/fi2, and the pulse width of this applied power was set to 4 m5ec, a rectangular solid black image was transferred onto the recording paper. A homogeneous solid transfer image with (0,D) of 1.2 was obtained.
また中間調記録を得るためにサーマルファクシミリ装置
のサーマル印字ヘッドに印加する印加電力を10W/l
I+12とし、この印加電力の印加パルス幅を1m5e
cとして、サーマル印字ヘッドに印加する印加エネルギ
ーを低下させた状態で、ベタ転写を行ったところ、0.
0が0.5と低下した均質な中・間開の記録が得られた
。In addition, in order to obtain halftone recording, the applied power to the thermal print head of the thermal facsimile device was 10W/l.
I+12, and the applied pulse width of this applied power is 1m5e
As for c, when solid transfer was performed with the applied energy applied to the thermal print head reduced, the result was 0.
A record of homogeneous medium and spacing was obtained with a decrease in 0 to 0.5.
このことは基材1側に中間調記録を得るためにサーマル
印字ヘッドに印加するエネルギーを低エネルギーとした
状態で、サーマル印字ヘッドを記録紙に押圧した時、イ
ンク層3に含まれている低融点材のうち、融点が低くて
染料との相溶性の低いショ糖エステルが最初に溶融して
この溶融したインクが記録紙上に転写される。そしてこ
のショ糖エステルは染料のカヤセントブランクに対して
相溶性が低いので、記録紙には濃度の低い中間調印字が
転写される。This means that when the thermal print head is pressed against the recording paper in a state where the energy applied to the thermal print head is low in order to obtain halftone recording on the base material 1 side, the low energy contained in the ink layer 3 Among the melting point materials, sucrose ester, which has a low melting point and low compatibility with dyes, is first melted, and the melted ink is transferred onto the recording paper. Since this sucrose ester has low compatibility with the dye colorant blank, a low-density halftone print is transferred to the recording paper.
このような本発明の熱転写記録用インクシ一トと比較す
るために、本実施例のインク層を構成する材料のうちで
、ショ糖エステルを除いた他は総て同じ材料を用いて熱
転写記録用インクシートを形成し、この熱転写記録用イ
ンクシートに記録紙を設置し、前記したサーマルファク
シミリ装置に設置して同様なベタ転写を行ったところ、
サーマル印字ヘッドの印加エネルギーを低エネルギーと
した時は、記録紙上に転写される転写像には転写むらが
起こりやすく、均質性が極めて悪い印字しか得られ無か
った。In order to compare with the ink sheet for thermal transfer recording of the present invention, a sheet for thermal transfer recording was prepared using the same materials, except for the sucrose ester, among the materials constituting the ink layer of this example. An ink sheet was formed, a recording paper was placed on this thermal transfer recording ink sheet, and the same solid transfer was performed by installing it in the thermal facsimile device described above.
When the energy applied by the thermal print head was set to low energy, uneven transfer easily occurred in the transferred image transferred onto the recording paper, and only prints with extremely poor homogeneity were obtained.
また本実施例のインク層の形成材料のうち、低融点材の
脂肪酸アミドを除いた以外は総て同じ材料を用いて熱転
写記録用インクシートを形成し、この熱転写記録用イン
クシートを用いて同様な試験を行ったところ、サーマル
印字ヘッドに印加するエネルギーを高エネルギーとした
時でも、記録濃度が1以上の高濃度の記録ができず、そ
のためサーマル印字ヘッドに印加する印加エネルギーを
変化させても、記録紙に転写される転写像の記録濃度が
広範囲に変化せず、従って良好な中間調記録ができなか
った。In addition, an ink sheet for thermal transfer recording was formed using the same materials for forming the ink layer of this example, except for the fatty acid amide, which is a low melting point material, and the ink sheet for thermal transfer recording was used in the same manner. When we conducted a series of tests, we found that even when the energy applied to the thermal print head was set to high energy, it was not possible to record with a high recording density of 1 or more, so even if the energy applied to the thermal print head was changed, , the recording density of the transferred image transferred to the recording paper did not vary over a wide range, and therefore good halftone recording was not possible.
これに反して本発明の熱転写記録用インクシートを用い
れば、中間調記録を得るためにサーマル印字ヘッドに印
加するエネルギーを高エネルギーの状態より低エネルギ
ーの状態に変動させると、その印加エネルギーに応じて
記録紙に転写される転写像の記録濃度が高濃度より低濃
度まで再現性良く変動し、しかも印字品位の高い記録が
得られた。On the other hand, if the ink sheet for thermal transfer recording of the present invention is used, when the energy applied to the thermal print head is changed from a high energy state to a low energy state in order to obtain halftone recording, The recorded density of the transferred image transferred to the recording paper varied with good reproducibility from high density to low density, and moreover, records with high print quality were obtained.
また本実施例の他に、更に中間調記録を行う時の転写感
度を高めるために、前記インク層を形成する際、基材に
近い側に融点が高い方の低融点材である脂肪酸アミドと
染料のカヤセントブラックと充填材のカーボンブランク
とアセトンとの混合溶液を塗布し、更にその上に融点が
低い方の低融点材であるショ糖エステルと染料のカヤセ
ットブランクとカーボンブランクとアセトンとの混合液
を塗布した二層構造の熱転写記録用インクシートを形成
しても良い。In addition to this example, in order to further increase the transfer sensitivity during halftone recording, when forming the ink layer, fatty acid amide, which is a low melting point material with a higher melting point, is added to the side closer to the base material. A mixed solution of the dye Kayasent black, the filler carbon blank, and acetone is applied, and then on top of that, the lower melting point material sucrose ester, the dye Kayasent black, the carbon blank, and acetone are applied. A thermal transfer recording ink sheet having a two-layer structure may be formed by coating a mixed solution of the above.
[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、サーマル印字へ・ノドの印加エネルギーを高エ
ネルギーより低エネルギーの値に変動させた時、転写さ
れる印字の記録濃度が高濃度のものより低濃度のものま
で、はぼ直線的に変動したしかも均質な中間調記録が得
られる効果を生じる。[gl Effects of the Invention As described above, according to the ink sheet for thermal transfer recording of the present invention, when the energy applied to the thermal printing gutter is changed from a high energy value to a low energy value, the transferred print recording is improved. The effect is that a uniform halftone record is obtained in which the density varies almost linearly from a high density to a low density.
図は本発明の熱転写記録用インクシートの一実施例を示
す断面図である。
図に於いて、1は基材、2は中間接着層、3はインク層
を示す。The figure is a sectional view showing an embodiment of the ink sheet for thermal transfer recording of the present invention. In the figure, 1 is a base material, 2 is an intermediate adhesive layer, and 3 is an ink layer.
Claims (1)
けた構成に於いて、前記インク層は融点の異なる少なく
とも二種類以上の低融点材を含み、かつ融点の低い低融
点材はど、染料との相溶性が低いことを特徴とする熱転
写記録用インクシート。In a structure in which an ink layer consisting of a dye, a low melting point material, and a filler is provided on a base material, the ink layer includes at least two types of low melting point materials having different melting points, and the low melting point material having a low melting point is An ink sheet for thermal transfer recording that is characterized by low compatibility with dyes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58175098A JPS6064896A (en) | 1983-09-20 | 1983-09-20 | Thermal transfer recording ink sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58175098A JPS6064896A (en) | 1983-09-20 | 1983-09-20 | Thermal transfer recording ink sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6064896A true JPS6064896A (en) | 1985-04-13 |
JPH0227957B2 JPH0227957B2 (en) | 1990-06-20 |
Family
ID=15990214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58175098A Granted JPS6064896A (en) | 1983-09-20 | 1983-09-20 | Thermal transfer recording ink sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6064896A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2585625A1 (en) * | 1985-07-31 | 1987-02-06 | Canon Kk | THERMAL TRANSFER RECORDING METHOD WITHOUT HOT TRANSFER MATERIAL |
JPS6377783A (en) * | 1986-09-19 | 1988-04-07 | Fujitsu Ltd | Thermal transfer ink ribbon |
JPS63111089A (en) * | 1986-10-29 | 1988-05-16 | Mitsubishi Paper Mills Ltd | Gradational thermal transfer recording system |
-
1983
- 1983-09-20 JP JP58175098A patent/JPS6064896A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2585625A1 (en) * | 1985-07-31 | 1987-02-06 | Canon Kk | THERMAL TRANSFER RECORDING METHOD WITHOUT HOT TRANSFER MATERIAL |
US4743920A (en) * | 1985-07-31 | 1988-05-10 | Canon Kabushiki Kaisha | Thermal transfer recording method and apparatus |
JPS6377783A (en) * | 1986-09-19 | 1988-04-07 | Fujitsu Ltd | Thermal transfer ink ribbon |
JPS63111089A (en) * | 1986-10-29 | 1988-05-16 | Mitsubishi Paper Mills Ltd | Gradational thermal transfer recording system |
Also Published As
Publication number | Publication date |
---|---|
JPH0227957B2 (en) | 1990-06-20 |
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