JPS61261092A - Thermal transfer recording medium - Google Patents
Thermal transfer recording mediumInfo
- Publication number
- JPS61261092A JPS61261092A JP60101584A JP10158485A JPS61261092A JP S61261092 A JPS61261092 A JP S61261092A JP 60101584 A JP60101584 A JP 60101584A JP 10158485 A JP10158485 A JP 10158485A JP S61261092 A JPS61261092 A JP S61261092A
- Authority
- JP
- Japan
- Prior art keywords
- thermal transfer
- recording medium
- transfer recording
- base material
- base
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、熱印加により色材を転写して記録を得るの
に用いられる熱転写記録用転写体に関するものであり、
特にサーマルヘッドやレーザビームなどの電子デバイス
を用いた熱転写記録方法に使用される熱転写記録媒体に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transfer body for thermal transfer recording, which is used to transfer a coloring material by applying heat to obtain a record.
In particular, the present invention relates to a thermal transfer recording medium used in a thermal transfer recording method using an electronic device such as a thermal head or a laser beam.
熱転写記録方法は、基材上に色材層を設けてなる転写体
と受像体とを重ね合わせ、転写体の基材側からサーマル
ヘッド等の発熱体を用いて加熱することにより、色材層
を受像体に転写させ記録を行うものである。この方法は
、■色材層の色相を変えることにより、容易に多色記録
、カラー記録を行うことができる。■現像・定着を必要
とせず、装置の小形化、経済化が可能である。■インク
ジェット記録での液体インク、あるいは電子写真記録に
おけるトナー材を使用する必要がなく、記録の信頼性が
よい、等の利点があり、特にカラープリンタ、カラーフ
ァクシミリ等の分野での使用が検討されている。しかし
ながら、転写体のコストが比較的高いため、ランニング
コストを下げる努力が行われている。このため、転写体
を多数回使用する試みがある。In the thermal transfer recording method, a transfer body having a coloring material layer provided on a base material and an image receiving body are placed on top of each other, and the coloring material layer is heated from the base material side of the transfer body using a heating element such as a thermal head. is transferred onto an image receptor to perform recording. With this method, (1) multicolor recording and color recording can be easily performed by changing the hue of the coloring material layer. ■Developing and fixing are not required, making it possible to make the device more compact and economical. ■There is no need to use liquid ink in inkjet recording or toner material in electrophotographic recording, and there are advantages such as good recording reliability, and its use is particularly being considered in fields such as color printers and color facsimiles. ing. However, since the cost of the transfer body is relatively high, efforts are being made to lower the running cost. For this reason, attempts have been made to use the transfer body multiple times.
この方法では、（ｉ）転写体と受像体とを同一速度で移
動させながら転写を行い、同一の転写面を多数回具なる
受像体に接触させる方法、（ｉｉ）転写体の移動速度を
受像体の移動速度に比べて相対的に小さくし、受像体よ
りも短い長さの転写体を用いて記録を行う方法、のふた
通りがある。いずれにしても、転写体は１回使用に比べ
てより過酷な条件で加熱されるため、転写体の基材は、
以下のような特性を満足する必要がある。In this method, (i) transfer is performed while moving the transfer body and image receptor at the same speed, and the same transfer surface is brought into contact with the image receptor many times; (ii) the moving speed of the transfer body is adjusted to There are two methods of recording using a transfer body that is relatively slow compared to the moving speed of the body and has a length shorter than the image receptor. In any case, the transfer body is heated under harsher conditions compared to one-time use, so the base material of the transfer body is
It is necessary to satisfy the following characteristics.
（ａ） 熱伝導効率を上げるため６〜２０ＪＬｍと薄
いフィルムであること、
（ｂ） 加熱によって寸法や表面形状が変化しないこ
と、
（Ｃ） サーマルヘッドと粘着しないこと、（ｄ）
十分な機械的強度を有すること、（ｅ） フィルム
が安価であること、〔発明が解決しようとする問題点〕
従来は、ポリエチレンテレフタレー） （ＰＥＴ）やセ
ロハンに耐熱処理を施したものが使用されてきたが、決
して満足すべきものではなかった。すなわちＰＥＴでは
ガラス転移温度Ｔｇが約７０℃と低く、このため、水溶
性樹脂や熱硬化性樹脂を主成分とする耐熱層が設けられ
ているが、１回の使用はともかく、多数回使用に耐えら
れるものではなかった。またセロハンについては（特開
昭５９−１７８２９４号公報参照）、ガラス転移温度Ｔ
ｇが１６０℃程度と高く、耐熱性の点ではＰＥＴに比べ
て優れてはいるものの、薄膜フィルムの機械的強度が弱
いこと、および湿度によってフィルム寸法が変化し易い
問題点があった。また、極めて耐熱性が高く、機械的強
度の点でも問題の少ないポリイミドフィルム（Ｔｇ：３
００℃以上）はコストがＰＥＴやセロハンの３０倍以上
であること、静電気が起こり易い等の問題点があったー
この発明は、上記の問題点を解決するためになされたも
ので、多数回の使用を可能とした熱転写記録媒体を提供
することを目的とする。(a) It must be a thin film of 6 to 20 JLm to increase heat conduction efficiency, (b) Its dimensions and surface shape should not change due to heating, (C) It must not stick to the thermal head, (d)
(e) The film should be inexpensive; [Problems to be solved by the invention] Conventionally, heat-resistant treated polyethylene terephthalate (PET) or cellophane was used. However, it has never been satisfactory. In other words, PET has a low glass transition temperature Tg of about 70°C, and for this reason, a heat-resistant layer mainly composed of water-soluble resin or thermosetting resin is provided. It was unbearable. Regarding cellophane (see Japanese Patent Application Laid-Open No. 59-178294), the glass transition temperature T
Although it has a high g value of about 160° C. and is superior to PET in terms of heat resistance, it has problems in that the mechanical strength of the thin film is weak and the film dimensions tend to change depending on humidity. In addition, polyimide film (Tg: 3
00℃ or higher) has problems such as being more than 30 times more expensive than PET or cellophane, and easily generating static electricity.This invention was made to solve the above problems, and has been used many times. The purpose of the present invention is to provide a thermal transfer recording medium that can be used for.
この発明にかかる熱転写記録媒体は、熱転写記録媒体の
基材として、ガラス転移温度Ｔｇ１００℃以上の非セル
ロース系合成高分子化合物を用いたものである。The thermal transfer recording medium according to the present invention uses a non-cellulose synthetic polymer compound having a glass transition temperature Tg of 100° C. or higher as the base material of the thermal transfer recording medium.
この発明によれば、基材のガラス転移温度Ｔｇが高いた
め、繰り返し使用することができる。According to this invention, since the glass transition temperature Tg of the base material is high, it can be used repeatedly.
以下この発明の実施例について説明する。 Examples of the present invention will be described below.
第１図はこの発明の一実施例を示す断面図で、１は基材
で、ガラス転移温度Ｔｇが１００℃以上の非セルロース
系合成高分子化合物からなっており、具体的には下記一
般Ｅ［Ｉ ］〜［ＩＶ］で示されに）１３
０
ただし、ｎは整数を表す。FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and 1 is a base material made of a non-cellulose synthetic polymer compound having a glass transition temperature Tg of 100°C or higher. [I] to [IV]) 13
0 However, n represents an integer.
これらの基材１はガラス転移温度Ｔｇがいずれも１００
″Ｃ以上であり、耐熱性がよく、また機械的特性、経済
性等の点でも優れていることが見出され、この知見に基
づいて、この発明の熱転写記録媒体を完成するに至った
ものである。All of these base materials 1 have a glass transition temperature Tg of 100.
``C or higher, has good heat resistance, and is also excellent in terms of mechanical properties, economic efficiency, etc., and based on this knowledge, the thermal transfer recording medium of the present invention has been completed. It is.
この発明の基材１は耐熱性がよいため、ＰＥＴフィルム
のように必ずしも耐熱層を設ける必要はないが、必要に
応じて第２図に示す実施例のように、従来技術と同様に
葉材１上に滑性耐熱層３を設けることもできる。また色
材層２は、インク材を基材１上に塗工することにより設
けることがでを基材１上に塗工することにより設けるこ
とができる。以下さらに、この発明の具体例について説
明する。Since the base material 1 of this invention has good heat resistance, it is not necessarily necessary to provide a heat-resistant layer like a PET film, but if necessary, as in the example shown in FIG. A slippery heat-resistant layer 3 can also be provided on the layer 1 . The color material layer 2 can also be provided by coating an ink material onto the base material 1 . Specific examples of the present invention will be further described below.
［具体例１］
一般式［ｍｌで表されるポリエステルスルホン樹脂フィ
ルム（厚さ１０．ｇｍ、住友ベークライト社製 スミラ
イトＦＳ−１３００）上に下記組成のインク材をバーコ
ータを用いて塗工し、６０°Ｃの熱風で乾燥して色材層
２とし、熱転写記録媒体この熱転写記録媒体を用い、サ
ーマルヘッドでポリプロピレン製の合成紙上にクレーを
塗工した受像体に、次の記録条件で記録画像を描かせた
。[Specific Example 1] An ink material having the following composition was coated using a bar coater on a polyester sulfone resin film (thickness 10.gm, Sumilite FS-1300 manufactured by Sumitomo Bakelite Co., Ltd.) expressed by the general formula [ml]. It was dried with hot air at °C to form coloring layer 2, and a thermal transfer recording medium was used to print a recorded image under the following recording conditions on an image receptor made of polypropylene synthetic paper coated with clay using a thermal head. I made him draw it.
この結果、それぞれの加熱時間でドツトに対応した画素
を持つ均質なマゼンタの染料画像を得た。このとき、サ
ーマルヘッドと転写体とのスティッキングは全く起こら
なかった。またｎ＝２０での記録時においても、転写体
表面の変形、走行異常等は全く起こらなかった。As a result, a homogeneous magenta dye image with pixels corresponding to dots was obtained at each heating time. At this time, no sticking occurred between the thermal head and the transfer body. Further, even during recording with n=20, no deformation of the surface of the transfer body, no abnormality in running, etc. occurred.
［具体例２〜４］
具体例１において、フィルム基材として下表のものを使
用する他は同様にして熱転写記録媒体を作製した。具体
例１と同様に記録を行ったところ、スティッキングや走
行異常のない優れた転写体であることが確認された。[Specific Examples 2 to 4] Thermal transfer recording media were produced in the same manner as in Specific Example 1, except that the film base material shown in the table below was used. When recording was performed in the same manner as in Example 1, it was confirmed that the transfer material was excellent without sticking or running abnormalities.
具体例２〜４で使用した基材１
また基材］の裏面に下記組成の塗料を塗工して滑性耐熱
層３を設けた場合は、ｎ＝３０以上でも同様に優れた特
性を示すことが分かった。When a slippery heat-resistant layer 3 is provided by coating the paint having the composition below on the back side of the substrate 1 used in Examples 2 to 4, the same excellent properties are exhibited even when n=30 or more. That's what I found out.
（ただし、塗工、乾燥の後、２ＫＷ高圧水銀灯を照射し
て硬化させた。）
［具体例５］
具体例１で用いた基材１上に下記組成のインク材を塗工
し色材層２とし、乾燥して熱転写記録媒体を作製した。(However, after coating and drying, it was cured by irradiation with a 2KW high-pressure mercury lamp.) [Specific Example 5] An ink material having the following composition was coated on the base material 1 used in Specific Example 1 to form a color material layer. 2 and dried to produce a thermal transfer recording medium.
この熱転写記録媒体を用いて記録を行ったところ、具体
例１と同様極めて優れた特性を示した。When recording was performed using this thermal transfer recording medium, it showed extremely excellent characteristics as in Example 1.
［比較例］
具体例１において、基材１として滑性耐熱層３（具体例
２〜４）付きのＰＥＴフィルムを用いる他は、同様にし
て熱転写記録媒体を作製した。この転写体を用いて記録
を行ったところ、ｎ＝１でもごくわずかなスティッキン
グが生じ、ｎ＝２以上では顕著なスティッキングが見ら
れた。またｎ＝５以上ではフィルム表面の変形が生じ、
印字乱れの原因となった。[Comparative Example] A thermal transfer recording medium was produced in the same manner as in Specific Example 1, except that a PET film with a slippery heat-resistant layer 3 (Specific Examples 2 to 4) was used as the substrate 1. When recording was performed using this transfer body, very slight sticking occurred even when n=1, and significant sticking was observed when n=2 or more. Moreover, when n=5 or more, deformation of the film surface occurs,
This caused printing irregularities.
以上説明したように、この発明は基材としてガラス転移
温度が１００℃以上の非セルロース系合成高分子化合物
を用いたので、耐熱性が優れており、したがって、多数
回の使用が可能となる利点がある。As explained above, this invention uses a non-cellulosic synthetic polymer compound with a glass transition temperature of 100°C or higher as a base material, so it has excellent heat resistance and has the advantage of being able to be used many times. There is.
第１図はこの発明の一実施例を示す断面図、第２図はこ
の発明の他の実施例・を示す断面図である。
図中、１は基材、２は色材層、３は滑性耐熱層である。
一一一一」
３滑Ｉト
−１基材
Ｌ耐軌眉FIG. 1 is a sectional view showing one embodiment of the invention, and FIG. 2 is a sectional view showing another embodiment of the invention. In the figure, 1 is a base material, 2 is a coloring material layer, and 3 is a slippery heat-resistant layer. 1111" 3 slides I-1 base material L track-resistant eyebrows
Claims (5)
いて、前記基材としてガラス転移温度が１００℃以上の
非セルロース系合成高分子化合物を用いたことを特徴と
する熱転写記録媒体。(1) A thermal transfer recording medium comprising a coloring material layer provided on a base material, characterized in that a non-cellulose synthetic polymer compound having a glass transition temperature of 100° C. or higher is used as the base material.
子化合物であることを特徴とする特許請求の範囲第（１
）項記載の熱転写記録媒体。 ▲数式、化学式、表等があります▼ ただし、ｎは整数を表す。(2) Claim No. 1 (1) characterized in that the base material is a non-cellulose polymer compound represented by the following general formula.
) The thermal transfer recording medium described in item 2. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ However, n represents an integer.
子化合物であることを特徴とする特許請求の範囲第（１
）項記載の熱転写記録媒体。 ▲数式、化学式、表等があります▼ ただし、ｎは整数を表す。(3) Claim No. 1 (1) characterized in that the base material is a non-cellulose polymer compound represented by the following general formula.
) The thermal transfer recording medium described in item 2. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ However, n represents an integer.
子化合物であることを特徴とする特許請求の範囲第（１
）項記載の熱転写記録媒体。 ▲数式、化学式、表等があります▼ ただし、ｎは整数を表す。(4) Claim No. 1 (1) characterized in that the base material is a non-cellulose polymer compound represented by the following general formula.
) The thermal transfer recording medium described in item 2. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ However, n represents an integer.
子化合物であることを特徴とする特許請求の範囲第（１
）項記載の熱転写記録媒体。 ▲数式、化学式、表等があります▼ ただし、ｎは整数を表す。(5) Claim No. 1 (1) characterized in that the base material is a non-cellulose polymer compound represented by the following general formula.
) The thermal transfer recording medium described in item 2. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ However, n represents an integer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60101584A JPS61261092A (en) | 1985-05-15 | 1985-05-15 | Thermal transfer recording medium |
| DE19853544868 DE3544868A1 (en) | 1985-05-15 | 1985-12-18 | Re-removable adhesive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60101584A JPS61261092A (en) | 1985-05-15 | 1985-05-15 | Thermal transfer recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61261092A true JPS61261092A (en) | 1986-11-19 |
Family
ID=14304430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60101584A Pending JPS61261092A (en) | 1985-05-15 | 1985-05-15 | Thermal transfer recording medium |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS61261092A (en) |
| DE (1) | DE3544868A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE199737T1 (en) * | 1989-12-06 | 2001-03-15 | Canon Kk | PRESSURE SENSITIVE ADHESIVE TAPE, INK JET RECORDING HEAD AND STORAGE METHOD |
| DE4202071C2 (en) * | 1992-01-25 | 1994-09-01 | Neschen Hans Gmbh & Co Kg | Pressure sensitive pressure sensitive adhesive and its use for the production of self-adhesive, flat substrates |
| DE4202070C2 (en) * | 1992-01-25 | 1994-10-27 | Neschen Hans Gmbh & Co Kg | Heat seal adhesive and its use for the production of a paper heat seal adhesive tape |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105395A (en) * | 1980-12-22 | 1982-06-30 | Fuji Kagakushi Kogyo Co Ltd | Thermal transfer recording medium |
| JPS58199195A (en) * | 1982-05-17 | 1983-11-19 | Dainippon Printing Co Ltd | Heat sensitive transfer sheet |
| JPS58201693A (en) * | 1982-05-20 | 1983-11-24 | Ricoh Co Ltd | Heat sensitive transfer type recording material |
| JPS60101087A (en) * | 1983-11-08 | 1985-06-05 | Dainippon Printing Co Ltd | Thermal transfer sheet |
-
1985
- 1985-05-15 JP JP60101584A patent/JPS61261092A/en active Pending
- 1985-12-18 DE DE19853544868 patent/DE3544868A1/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105395A (en) * | 1980-12-22 | 1982-06-30 | Fuji Kagakushi Kogyo Co Ltd | Thermal transfer recording medium |
| JPS58199195A (en) * | 1982-05-17 | 1983-11-19 | Dainippon Printing Co Ltd | Heat sensitive transfer sheet |
| JPS58201693A (en) * | 1982-05-20 | 1983-11-24 | Ricoh Co Ltd | Heat sensitive transfer type recording material |
| JPS60101087A (en) * | 1983-11-08 | 1985-06-05 | Dainippon Printing Co Ltd | Thermal transfer sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3544868A1 (en) | 1986-11-20 |
| DE3544868C2 (en) | 1990-05-17 |
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