JPH0521755B2 - - Google Patents
Info
- Publication number
- JPH0521755B2 JPH0521755B2 JP58020163A JP2016383A JPH0521755B2 JP H0521755 B2 JPH0521755 B2 JP H0521755B2 JP 58020163 A JP58020163 A JP 58020163A JP 2016383 A JP2016383 A JP 2016383A JP H0521755 B2 JPH0521755 B2 JP H0521755B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- sheet
- layer
- base material
- solvent
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 31
- 239000010410 layer Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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)
- Thermal Transfer Or Thermal Recording In General (AREA)
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インクシートの製造方法に
係り、特にインクの加熱溶融後、所定の温度で急
冷することにより均一なインク層を得るようにし
たインクシートの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a method for producing a thermal transfer recording ink sheet, in particular a method for obtaining a uniform ink layer by heating and melting the ink and then rapidly cooling it at a predetermined temperature. The present invention relates to a method of manufacturing an ink sheet.
(b) 従来技術と問題点
熱転写記録は第１図に示すように支持体である
基材１に、基剤である常温で固体のインク材２を
塗布した熱転写インクシート３を記録用紙４に重
ね、サーマルヘツド５により基材１側から瞬間的
に加熱し、色像６を記録用紙４に転写させて記録
する方法である。(b) Prior art and problems In thermal transfer recording, as shown in FIG. 1, a thermal transfer ink sheet 3 is coated with an ink material 2, which is solid at room temperature, on a base material 1, which is a support, and onto a recording paper 4. In this method, the color images 6 are transferred onto the recording paper 4 by superimposing them and instantaneously heating the base material 1 from the side of the base material 1 using the thermal head 5 for recording.
従来熱転写インクシートの製造方法としては、
熱溶融したインクを基材１上に塗布する方法と、
インク材料を溶剤上溶解、或いは分散し、基材１
に塗布する方法とがある。前者は加熱により溶融
したインク材２を基材１上に落とし塗布するとき
に、すぐに冷え固まるため、インク材２及び基材
１を暖めながら塗らねばならず、塗布装置が複雑
になる。又インク成分の熱溶融しないものが含ま
れていると、この方法は適用できない。他方後者
の溶剤を用いて塗布方法によると、溶剤蒸発後細
かい空隙（穴）が生じ、これが熱伝導を妨げるた
め、転写感度低下の原因となる。そこでこの空隙
（穴）を埋めるために加熱溶融する方法があるが、
溶融後室温での自然冷却ではインク組成のうち融
点の高いものから固まるため、折角よく混合して
いたものが分離してしまい、インクシート３の特
性にバラツキが生じる欠点があつた。 Conventional methods for manufacturing thermal transfer ink sheets include:
A method of applying hot melted ink onto a base material 1;
The ink material is dissolved or dispersed in a solvent, and the base material 1 is
There is a method of applying it. In the former case, when the ink material 2 melted by heating is dropped onto the base material 1 and applied, it quickly cools and hardens, so the ink material 2 and the base material 1 must be warmed while being applied, which complicates the application apparatus. Furthermore, this method cannot be applied if the ink contains ink components that do not melt under heat. On the other hand, according to the coating method using the latter solvent, fine voids (holes) are generated after the solvent evaporates, which impede heat conduction and cause a decrease in transfer sensitivity. Therefore, there is a method of heating and melting to fill this void (hole).
When naturally cooled at room temperature after melting, the components of the ink composition with the highest melting points solidify, so that the components that were well mixed separate, resulting in variations in the properties of the ink sheet 3.
(c) 発明の目的
本発明の目的はインクの加熱溶融後、急冷固化
を一定温度にコントロールして行うことにより、
均質な特性のインクシートを再現性よく得るイン
クシートの製造方法を提供することにある。(c) Purpose of the Invention The purpose of the present invention is to rapidly cool and solidify the ink after heating and melting it by controlling a constant temperature.
An object of the present invention is to provide a method for manufacturing an ink sheet that can obtain an ink sheet with uniform characteristics with good reproducibility.
(d) 発明の構成
そして、この目的は、本発明によれば、異なる
融点を有する複数のインク材料成分を溶剤に溶解
して成る塗布材料をシート状の基材上に塗布して
塗布層を形成した後、前記塗布層から前記溶剤を
蒸発させ、前記シート状基材上に前記インク材料
成分で構成されるインク層を形成し、次いで、前
記インク層中の空〓を埋めるように前記インク層
を加熱して溶融し、この溶融した状態のインク層
を、前記複数のインク材料成分が均一に分散した
状態で固化するように急冷すること、を特徴とす
るインクシートの製造方法を提供することにより
達成される。(d) Structure of the Invention According to the present invention, a coating material made by dissolving a plurality of ink material components having different melting points in a solvent is coated on a sheet-like base material to form a coating layer. After forming, the solvent is evaporated from the coating layer to form an ink layer composed of the ink material components on the sheet-like base material, and then the ink is applied so as to fill the voids in the ink layer. Provided is a method for producing an ink sheet, characterized by heating and melting the layer, and rapidly cooling the molten ink layer so that the plurality of ink material components are solidified in a uniformly dispersed state. This is achieved by
(e) 発明の実施例 以下、本発明の実施例を詳述する。(e) Examples of the invention Examples of the present invention will be described in detail below.
本発明の熱転写インクシートの製造方法は常温
で固定であるインク材料を溶剤に溶解、或いは分
散し基材に塗布した後、溶剤の蒸発により生じた
細かい空隙（穴）を埋めるために加熱溶融した
後、冷却固化を一定温度で短時間に行なうことに
より、インクの各組成分が均一に溶解したまゝの
状態で固化せしめて、均質な特性を有するインク
シートにしている。 The method for manufacturing the thermal transfer ink sheet of the present invention is to dissolve or disperse the ink material, which is fixed at room temperature, in a solvent and apply it to the base material, and then heat and melt it to fill the fine voids (holes) created by the evaporation of the solvent. Thereafter, by cooling and solidifying at a constant temperature for a short time, each component of the ink is solidified while remaining uniformly dissolved, resulting in an ink sheet having homogeneous properties.
第２図は本発明に用いられる塗布装置の斜視図
を示す。 FIG. 2 shows a perspective view of a coating device used in the present invention.
図において、７は塗布部、８はインクシート、
９，１０は送りローラ、１１は巻取機、１２は加
熱ドラム、１３は水冷パイプ、１４は軸、１５は
ヒータである。 In the figure, 7 is an application section, 8 is an ink sheet,
9 and 10 are feed rollers, 11 is a winder, 12 is a heating drum, 13 is a water cooling pipe, 14 is a shaft, and 15 is a heater.
塗布部７で、インク材が基材で塗布され、送り
ローラ９，１０で矢印方向に搬送されているイン
クシート８は、まず加熱ドラム１２で塗布反対対
面を95℃に加熱されインクは溶融される。次に水
冷パイプ１３により同じく裏面より急冷されイン
クが固化する。 In the coating section 7, the ink sheet 8 is coated with an ink material on a base material, and is being conveyed in the direction of the arrow by the feed rollers 9 and 10. First, the surface opposite to the coating is heated to 95° C. by the heating drum 12, and the ink is melted. Ru. Next, the ink is rapidly cooled from the back side by the water cooling pipe 13 and solidified.
インクシート８の送り速度は実施例では25mm／
secであり、熔融時間は約5secである。水冷パイ
プ１３はアルミ製であり、内部には水を流してい
るので、連続的に行う場合、水冷パイプ１３に蓄
積された熱は流れる水により冷却され、水冷パイ
プ１３の温度は一定に保たれる。（実施例では20
℃）上記水冷パイプ１３により一定温度で急冷さ
れるので、従来の自然冷却のようにインク材料成
分の融点の高いものから固まることなく、均一に
分散した状態のまゝ固化する。 The feeding speed of the ink sheet 8 is 25mm/in the example.
sec, and the melting time is about 5 sec. The water cooling pipe 13 is made of aluminum and has water flowing inside it, so when it is used continuously, the heat accumulated in the water cooling pipe 13 is cooled by the flowing water, and the temperature of the water cooling pipe 13 is kept constant. It will be done. (20 in the example)
C) Since the ink is rapidly cooled at a constant temperature by the water-cooling pipe 13, the ink material components do not solidify in a uniformly dispersed state, unlike in conventional natural cooling, where the ink material components have a high melting point.
上記のようにして製造したインクシートで、
0.9W×１ｍｓ／１ドツト、８ドツト／mmのライ
ンヘツドによりベタ、あるいはパターン転写を行
つたところ、転写濃度は光学濃度OD1.2であり、
さらに濃度のバラツキはOD0.05以下であり、転
写濃度は十分で、濃度バラツキも少い。 With the ink sheet manufactured as above,
When solid or pattern transfer was performed using a line head of 0.9W x 1ms/1 dot and 8 dots/mm, the transfer density was optical density OD1.2,
Furthermore, the density variation is OD0.05 or less, the transfer density is sufficient, and the density variation is small.
本発明では、上記のようにインクの溶融固化の
工程を少くとも１回一定の条件で、しかも瞬時に
行うことにより、全体に均質なインクシートが再
現性良く、長尺で得られた。 In the present invention, by carrying out the process of melting and solidifying the ink at least once under constant conditions and instantaneously as described above, a long ink sheet that is homogeneous throughout can be obtained with good reproducibility.
(f) 発明の効果
以上、詳細に説明したように、本発明のインク
シートの製造方法は、溶剤の蒸発により生じた空
〓を埋めるために異なる融点を有するインク材料
成分で構成されるインク層を加熱溶融後、溶融し
た状態のインク層を、複数のインク材料成分が均
一に分散した状態で固化するように急冷すること
により、異なる融点を有する複数のインク材料成
分が均一に分散した状態のインク層を有するイン
クシートを得ることができる。(f) Effects of the Invention As explained in detail above, the method for producing an ink sheet of the present invention provides an ink layer composed of ink material components having different melting points in order to fill the voids caused by evaporation of a solvent. After heating and melting the ink layer, the molten ink layer is rapidly cooled so as to solidify in a state in which multiple ink material components are uniformly dispersed. An ink sheet having an ink layer can be obtained.
第１図は熱転写記録の概略を説明するための
図、第２図は本発明の１実施例に用いられる塗布
装置を示す斜視図である。
図において、７は塗布部、８はインクシート、
９，１０は送りローラ、１１は巻取機、１２は加
熱ドラム、１３は水冷パイプ、１４は軸、１５は
ヒータを示す。
FIG. 1 is a diagram for explaining the outline of thermal transfer recording, and FIG. 2 is a perspective view showing a coating device used in one embodiment of the present invention. In the figure, 7 is an application section, 8 is an ink sheet,
9 and 10 are feed rollers, 11 is a winder, 12 is a heating drum, 13 is a water cooling pipe, 14 is a shaft, and 15 is a heater.
Claims (1)
溶剤に溶解して成る塗布材料をシート状の基材上
に塗布して塗布層を形成した後、 前記塗布層から前記溶剤を蒸発させ、前記シー
ト状基材上に前記インク材料成分で構成されるイ
ンク層を形成し、 次いで、前記インク層中の空〓を埋めるように
前記インク層を加熱して溶融し、 この溶融した状態のインク層を、前記複数のイ
ンク材料成分が均一に分散した状態で固化するよ
うに急冷すること、 を特徴とするインクシートの製造方法。[Scope of Claims] 1. A coating material made by dissolving a plurality of ink material components having different melting points in a solvent is coated on a sheet-like base material to form a coating layer, and then the solvent is removed from the coating layer. evaporate to form an ink layer composed of the ink material components on the sheet-like base material, and then heat and melt the ink layer so as to fill the voids in the ink layer; A method for producing an ink sheet, comprising: rapidly cooling the ink layer in a state such that the plurality of ink material components are solidified in a uniformly dispersed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58020163A JPS59145191A (en) | 1983-02-09 | 1983-02-09 | Ink sheet manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58020163A JPS59145191A (en) | 1983-02-09 | 1983-02-09 | Ink sheet manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59145191A JPS59145191A (en) | 1984-08-20 |
| JPH0521755B2 true JPH0521755B2 (en) | 1993-03-25 |
Family
ID=12019485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58020163A Granted JPS59145191A (en) | 1983-02-09 | 1983-02-09 | Ink sheet manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59145191A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520308A1 (en) * | 1985-06-07 | 1986-12-11 | Pelikan Ag, 3000 Hannover | METHOD FOR PRODUCING A THERMAL RIBBON TAPE FOR THERMAL TRANSFER PRINTING AND THE THERMAL RIBBON TAPE AVAILABLE AFTER THIS |
| JPS63207688A (en) * | 1987-02-24 | 1988-08-29 | Dainippon Printing Co Ltd | Production of thermal transfer sheet |
| DE3728075A1 (en) * | 1987-08-22 | 1989-03-02 | Pelikan Ag | THERMOFIBB BAND FOR THERMAL TRANSFER PRESSURE AND ITS MANUFACTURE |
| DE3728076A1 (en) * | 1987-08-22 | 1989-03-02 | Pelikan Ag | METHOD FOR PRODUCING A THERMOFIBB BAND FOR THE THERMOTRANSFER PRINT AND THEREFORE THERMOFARB BAND THEREOF |
| JPH01186385A (en) * | 1988-01-21 | 1989-07-25 | Brother Ind Ltd | Manufacturing method of thermal transfer ink ribbon for dry transfer material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185193A (en) * | 1981-05-11 | 1982-11-15 | Nec Corp | Thermal transfer sheet |
-
1983
- 1983-02-09 JP JP58020163A patent/JPS59145191A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185193A (en) * | 1981-05-11 | 1982-11-15 | Nec Corp | Thermal transfer sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59145191A (en) | 1984-08-20 |
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