JPS60232996A - Heat transfer sheet - Google Patents
Heat transfer sheetInfo
- Publication number
- JPS60232996A JPS60232996A JP59089673A JP8967384A JPS60232996A JP S60232996 A JPS60232996 A JP S60232996A JP 59089673 A JP59089673 A JP 59089673A JP 8967384 A JP8967384 A JP 8967384A JP S60232996 A JPS60232996 A JP S60232996A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- base film
- sublimable dye
- layer
- intermediate layer
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はファクシミリ、プリンタなどに用いられる熱転
写シート、特に昇華性染料を使用する熱転写シートに関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal transfer sheet used in facsimiles, printers, etc., and particularly to a thermal transfer sheet using a sublimable dye.
最近、カラー記録に対する要望が高まシ、これに対応す
る方式として熱転写記録方式の開発が盛んに行われてい
る。熱転写記録方式の一つに昇華性染料を用いた方式が
ある。Recently, there has been an increasing demand for color recording, and thermal transfer recording methods have been actively developed as a method to meet this demand. One of the thermal transfer recording methods is a method using sublimable dye.
これは昇華性染料を、サーマルヘッド等の熱源によシ加
熱昇華させ、記録紙に吸着させて記録を得る方式であり
、外部から加える熱量を制御することにより゛〔記録濃
度を変えることができるため、容易に中間調を表現する
ことができる。このため、イエロー、マゼンタ、シアン
の３色を用いれば写真に類するフルカラー記録を行うこ
とができる点で最近特に注目されている。This is a method in which a sublimable dye is heated and sublimated using a heat source such as a thermal head, and then adsorbed onto recording paper to obtain a record. By controlling the amount of heat applied externally, the recording density can be changed. Therefore, intermediate tones can be easily expressed. For this reason, it has recently attracted particular attention because it is possible to perform full-color recording similar to photography by using the three colors yellow, magenta, and cyan.
上記の熱転写記録方式に用いる従来の昇華シートはベー
スフィルム上に昇華性染料を含む記録層が積層された構
造となっている。ベースフィルムは耐熱性が良く、薄い
ものであれば特に制限はなく、価格の点から通常はポリ
エステルフィルム、コンデンサー紙が用いられており、
特に強度の高いことが要求される場合にはポリエステル
フィルムが用いられている。記録層は主に昇華性染料及
び接着剤からなっている。昇華性染料として用いられる
のは主に分散染料と呼ばれる種類の染料で。The conventional sublimation sheet used in the above thermal transfer recording method has a structure in which a recording layer containing a sublimable dye is laminated on a base film. There are no particular restrictions on the base film as long as it has good heat resistance and is thin. Polyester film and capacitor paper are usually used due to cost.
Polyester films are used when particularly high strength is required. The recording layer mainly consists of sublimable dye and adhesive. The main type of dye used as sublimable dyes is called disperse dye.
モノアゾ系、ジスアゾ系、アンスラキノン系の染料が良
く用いられる。これらの染料は疎水性樹脂の染色に用い
られるものである。接着剤は染料を含有する膜を形成で
きれば良く、ポリ酢酸ビニル、ポリ塩化ビニル、エポキ
シ樹脂、ポリウレタン樹脂等を用いることができる。Monoazo, disazo, and anthraquinone dyes are often used. These dyes are used for dyeing hydrophobic resins. Any adhesive can be used as long as it can form a dye-containing film, and polyvinyl acetate, polyvinyl chloride, epoxy resin, polyurethane resin, etc. can be used.
また記録紙としては昇華性染料を受容しやすい高分子膜
を普通紙上に形成したものが用いられる。The recording paper used is plain paper on which a polymer film that easily accepts sublimable dyes is formed.
前述の高分子としては、ポリエステル、アセテート、ナ
イロン等が昇華性染料の種類により適宜選択さ、れて用
いられる。As the above-mentioned polymer, polyester, acetate, nylon, etc. are appropriately selected and used depending on the type of sublimable dye.
記録紙上に記録を行うには、記録紙の高分子塗布面と記
録層とを向き合わせて重ね、サーマルヘッドでベースフ
ィルム面を加熱し、昇華性染料を昇華させて記録紙に移
行させるととによって行われる。このようにベースフィ
ルム側が加熱されて記録が行われるため、ベースフィル
ムと昇華性染料との組合せによつ−ではベースフィルム
側へも昇華性染料が拡散することがある。例えばベース
フ１ イ″′・とじて多く用“られ−ｃｖ、ｂ、ｔｒす
”′″′″″″′″″″イルムアンスラキノン系染料で
ある赤色染料ＰＳＤ−２０（住友化学製）を用いると、
記碌時昇華性染料は記録紙へ移行するとともに、ベース
フィルムであるポリエステルフィルムにも拡散浸透する
。このためＶ２鋒層に含有される昇華性染料は記録に必
要とされる染料の約２倍近く必要となる。従って、記録
層の昇華性染料と接着剤との比率が一定ならば、記録層
の厚みは約２倍必要となり、記録感度が低下す暮ことや
、昇華性染料の接着剤に対する比率を大きくすると、記
録層中の昇華性染料が圧力により記録紙へ転移しやすく
なり、記録紙の地汚れが生じ易くなるという欠点がある
・
〔発明の目的〕
本発明は昇華性染料のベースフィルムへの拡散を防止す
ることにより、前述の問題を改善しようとするものであ
る・
〔発明の構成〕
本発明はベースフィルムと記録層との間に昇華性染料の
拡散係数がベースフィルムより小さい中間層を設けた昇
華シートである。To record on recording paper, the polymer coated side of the recording paper and the recording layer are stacked facing each other, and the base film surface is heated with a thermal head to sublimate the sublimable dye and transfer it to the recording paper. carried out by Since recording is performed by heating the base film side in this way, depending on the combination of the base film and the sublimable dye, the sublimable dye may also diffuse to the base film side. For example, the red dye PSD-20 (manufactured by Sumitomo Chemical), which is an anthraquinone dye, is used. and,
During recording, the sublimable dye migrates to the recording paper and also diffuses into the polyester film that is the base film. Therefore, the sublimable dye contained in the V2 layer is required to be approximately twice as much as the dye required for recording. Therefore, if the ratio of the sublimable dye to the adhesive in the recording layer is constant, the thickness of the recording layer will need to be approximately twice as thick, and the recording sensitivity will decrease, and if the ratio of the sublimable dye to the adhesive is increased, However, there is a disadvantage that the sublimable dye in the recording layer is easily transferred to the recording paper due to pressure, and the recording paper is likely to be smudged. [Structure of the Invention] The present invention provides an intermediate layer between the base film and the recording layer in which the diffusion coefficient of the sublimable dye is smaller than that of the base film. It is a sublimation sheet.
次に実施例を挙げて本発明の詳細な説明する。 Next, the present invention will be explained in detail with reference to Examples.
第１図は本発明の一実施例を、示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
ｔ−ｔ”、ベースフィルム１１として強度、価格の観点
カラポリエステルフィルムを用いた。次に、記録層１３
を作成するため、昇華性染料としてカヤセットブルー１
３６（日本化薬製）を２重量部、接着剤としてポリビニ
ルブチラール樹脂金５重量部、溶剤として塩化メチレン
を１００重量部になる様に秤量、し混合した。次に中間
層１２を作成するため、昇華性染料の拡散係数の小さい
ヒドロキシエチルセルロー７１０重量部を水１００重量
部に溶解し、ワ（−Ｙ−バー’ｉ用いてヒドロキシエチ
ルセルロース溶液を１０μｍ厚さのポリエステルフィル
ム上に塗布し、これを乾燥して約１μｍ厚さの中間層１
２を形成した。この中間層１２上に、同様にワイヤーノ
（−を用いて前述の昇華性染料を含む溶液を塗布した後
、乾燥して約２趣厚さの記録層１３を形成して昇華シー
ト１を作成した。なお、比較のためｌＯμ慨厚さのポリ
エステルフィルム上に２μｍ厚さの記録層のみを形成し
た昇華シートを作成した。また、記録紙として普通紙上
にポリエステル膜が形成された記録紙を用意した。次に
前述の各昇華シートとｓｃ！録紙とを重ね合せ、発熱体
素子密度６本／間のサーマルヘッドを用い、１発熱体素
子当り記録電力０．４ワツトで記録し、赤色の領域で濃
度測定したところ、中間層を設けた本発明の昇華シート
では約１．２の記録濃度（ＯＤ）が得られたが、中間層
の無い昇華シートでは約０．９の記録濃度しか得られな
かった。また中間層の無い昇華シートで約１．２の記録
濃度を得るには、記録層の厚さは約１．５倍必要であり
、またより大きな記録電力を必要とし？ｃ。t-t", a colored polyester film was used as the base film 11 from the viewpoint of strength and price. Next, the recording layer 13
Kayaset Blue 1 as a sublimable dye to create
36 (manufactured by Nippon Kayaku), 5 parts by weight of polyvinyl butyral resin gold as an adhesive, and 100 parts by weight of methylene chloride as a solvent were weighed and mixed. Next, to create the intermediate layer 12, 710 parts by weight of hydroxyethyl cellulose, which has a small diffusion coefficient for sublimable dyes, is dissolved in 100 parts by weight of water, and the hydroxyethyl cellulose solution is spread to a thickness of 10 μm using a wafer. The intermediate layer 1 is coated on a polyester film with a thickness of approximately 1 μm and dried.
2 was formed. On this intermediate layer 12, a solution containing the above-mentioned sublimable dye is similarly applied using Wire No. (-), and then dried to form a recording layer 13 with a thickness of about 2 mm, thereby creating a sublimation sheet 1. For comparison, a sublimation sheet was prepared in which only a 2 μm thick recording layer was formed on a 10 μm thick polyester film. In addition, recording paper in which a polyester film was formed on plain paper was prepared as a recording paper. Next, each of the above-mentioned sublimation sheets and sc! When the density was measured in the area, a recording density (OD) of about 1.2 was obtained with the sublimation sheet of the present invention provided with an intermediate layer, but a recording density (OD) of only about 0.9 was obtained with the sublimation sheet without an intermediate layer. Furthermore, in order to obtain a recording density of about 1.2 with a sublimation sheet without an intermediate layer, the thickness of the recording layer needs to be about 1.5 times, and a larger recording power is required.
以上説明したように、中間層を設けた本発明の熱転写シ
ートは記録層の厚さを薄くできるため、シートのコスト
が安くなシ、また記録感度が高くなるという効果を有す
るものである。As explained above, since the thermal transfer sheet of the present invention provided with an intermediate layer can have a thin recording layer, the cost of the sheet is low and the recording sensitivity is high.
第１図は本発明の昇華シートの一実施例を示す断面図で
ある・
１・・・昇華シート、ｌｌ・・・ベースフィルム、１２
・・・中間層、１３・・・記録層
特許出願人 日本、電気株式会社
第１図FIG. 1 is a sectional view showing one embodiment of the sublimation sheet of the present invention. 1... Sublimation sheet, ll... Base film, 12
...Intermediate layer, 13...Recording layer Patent applicant Japan Denki Co., Ltd. Figure 1
Claims (1)
成されている熱転写シートにおいて、ベースフィルムと
記録層との間に該昇華性染料の拡散係数がベースフィル
ムより小さい中間層を設けたことを特徴とする熱転写シ
ート。(1) In a thermal transfer sheet in which a recording layer containing a sublimable dye is formed on a base film, an intermediate layer is provided between the base film and the recording layer in which the diffusion coefficient of the sublimable dye is smaller than that of the base film. A thermal transfer sheet featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59089673A JPS60232996A (en) | 1984-05-04 | 1984-05-04 | Heat transfer sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59089673A JPS60232996A (en) | 1984-05-04 | 1984-05-04 | Heat transfer sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60232996A true JPS60232996A (en) | 1985-11-19 |
| JPH0569718B2 JPH0569718B2 (en) | 1993-10-01 |
Family
ID=13977265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59089673A Granted JPS60232996A (en) | 1984-05-04 | 1984-05-04 | Heat transfer sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60232996A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63281888A (en) * | 1987-05-15 | 1988-11-18 | Dainippon Printing Co Ltd | Thermal transfer recording sheet |
| WO1990000475A1 (en) * | 1988-07-12 | 1990-01-25 | Dai Nippon Insatsu Kabushiki Kaisha | Heat-sensitive transfer method |
| US5607896A (en) * | 1991-08-20 | 1997-03-04 | Imperial Chemical Industries Plc | Thermal transfer printing dyesheet |
| EP2000317A1 (en) | 2004-11-02 | 2008-12-10 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
| US7517833B2 (en) | 2004-10-25 | 2009-04-14 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet and protective layer transfer sheet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101050862B1 (en) | 2005-12-09 | 2011-07-20 | 다이니폰 인사츠 가부시키가이샤 | Thermal transfer sheet |
-
1984
- 1984-05-04 JP JP59089673A patent/JPS60232996A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63281888A (en) * | 1987-05-15 | 1988-11-18 | Dainippon Printing Co Ltd | Thermal transfer recording sheet |
| WO1990000475A1 (en) * | 1988-07-12 | 1990-01-25 | Dai Nippon Insatsu Kabushiki Kaisha | Heat-sensitive transfer method |
| US5096874A (en) * | 1988-07-12 | 1992-03-17 | Dai Nippon Insatsu Kabushiki Kaisha | Heat-sensitive transfer method |
| US5607896A (en) * | 1991-08-20 | 1997-03-04 | Imperial Chemical Industries Plc | Thermal transfer printing dyesheet |
| US7517833B2 (en) | 2004-10-25 | 2009-04-14 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet and protective layer transfer sheet |
| EP2409851A2 (en) | 2004-10-25 | 2012-01-25 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
| EP2465692A1 (en) | 2004-10-25 | 2012-06-20 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
| EP2000317A1 (en) | 2004-11-02 | 2008-12-10 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
| US7651976B2 (en) | 2004-11-02 | 2010-01-26 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0569718B2 (en) | 1993-10-01 |
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