JPS63128989A - Thermal transfer ink sheet - Google Patents
Thermal transfer ink sheetInfo
- Publication number
- JPS63128989A JPS63128989A JP61276125A JP27612586A JPS63128989A JP S63128989 A JPS63128989 A JP S63128989A JP 61276125 A JP61276125 A JP 61276125A JP 27612586 A JP27612586 A JP 27612586A JP S63128989 A JPS63128989 A JP S63128989A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- heat
- porous
- layer
- hot melt
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims description 37
- 238000002844 melting Methods 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims 4
- 239000011241 protective layer Substances 0.000 claims 1
- 239000000976 ink Substances 0.000 abstract description 155
- 239000012943 hotmelt Substances 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000008542 thermal sensitivity Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004040 coloring Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000007639 printing Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 13
- 238000000576 coating method Methods 0.000 description 13
- 239000000203 mixture Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000001993 wax Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011787 zinc oxide 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
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】
（技術分野〕
本発明は感熱プリンタや感熱タイプライタ−に供する感
熱転写インキシートに関し、より詳しくは多数回使用可
能な感熱転写インキシートに関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a thermal transfer ink sheet for use in thermal printers and thermal typewriters, and more particularly to a thermal transfer ink sheet that can be used many times.
従来の熱転写シートは基体フィルム上に熱溶融性バイン
ダーと着色材からなる熱溶融性インキ層を設けただけの
構成故に、次のような欠点を有している。すなわち、１
回の転写で記録媒体のインキ層が基材フィルム上にほと
んど残らず、２回目以降の使用では濃度ムラのある印字
物しか得られない所謂、ワンタイム型熱転写シートであ
った。Conventional thermal transfer sheets have the following drawbacks because they have a structure in which a heat-melt ink layer consisting of a heat-melt binder and a coloring material is provided on a base film. That is, 1
This was a so-called one-time type thermal transfer sheet in which almost no ink layer of the recording medium remained on the base film after the first transfer, and only prints with uneven density were obtained after the second and subsequent uses.
従って、記録を得るためのコストが高くなった。Therefore, the cost of obtaining records has increased.
また、−回の印字だけでは熱転写シート側に印字の痕跡
が明瞭に残存するため、情報の保守面にも問題があった
。こうした背景から、反復使用可能な熱転写シートの検
討が進められている。In addition, since printing marks are clearly left on the thermal transfer sheet side after only - times of printing, there is also a problem in terms of information maintenance. Against this background, studies are underway on heat transfer sheets that can be used repeatedly.
従来の反復使用可能な熱転写シートにおいては、ベース
フィルム上に微細な多孔質網状構造を有する耐熱性樹脂
層を設け、その孔空げきに熱溶融性インキ、を含有させ
て成る感熱転写材の提案（特開昭５５−１０５５７９号
公報）がある、この転写材は感熱ヘッドの発熱体の印加
エネルギーの大小に応じてインキの転写量を制御する手
段として注目される。In conventional heat transfer sheets that can be used repeatedly, we propose a heat-sensitive transfer material that has a heat-resistant resin layer with a fine porous network structure on a base film, and contains heat-melting ink in the pores of the heat-resistant resin layer. (Japanese Unexamined Patent Publication No. 55-105579), this transfer material is attracting attention as a means for controlling the amount of ink transferred according to the magnitude of energy applied to a heating element of a thermal head.
しかしながら、インキの保持体である多孔質層の耐久性
から孔空げき率に制限があるため、この空げきに充填さ
れるインキ量にも限界があった。このため、同容量のイ
ンキを多孔体に保持させたものは、させないものに比べ
よりかさ高いインキシートとなり、熱感度の面で不利で
あった。たとえば高エネルギーの印加により高濃度の転
写画像を得たとしても、印字品質の良好なものは得られ
なかった。また、感熱ヘッドにより加熱された熱溶融性
インキは完全に被転写体に移行することなく、インキの
効率的利用という点にも問題を残した。However, since there is a limit to the pore void ratio due to the durability of the porous layer that is the ink retainer, there is also a limit to the amount of ink that can be filled into the voids. For this reason, when the same amount of ink is held in a porous body, the ink sheet becomes bulkier than when it is not held, which is disadvantageous in terms of thermal sensitivity. For example, even if a high-density transferred image was obtained by applying high energy, a good print quality could not be obtained. Furthermore, the heat-melting ink heated by the thermal head did not completely transfer to the transfer object, leaving a problem in terms of efficient use of the ink.
一方、インキの効率利用のための改善として、基材フィ
ルム上に熱溶融性インキ層を設け、このインキ層の上に
、更に、多孔膜を設けなる熱転写シートの提案（特開昭
６０−１３５２９４号公報）がある。On the other hand, as an improvement for efficient use of ink, a proposal was made for a thermal transfer sheet in which a heat-melting ink layer is provided on a base film, and a porous film is further provided on this ink layer (Japanese Patent Laid-Open No. 135294/1983). Publication No.).
この転写シートでは、多孔膜の厚さが熱溶融性インキ層
よりも薄く設定されるため、感熱ヘッドにより印字され
た後に、多孔膜中に保持されて残存するインキ量は少な
くて済み、インキの効率利用には有効である。しかしな
がら、予め多孔体中にインキが充填されていないために
、膜内をインキが透過するまでの不必要なエネルギーを
消費するため、熱応答性の面で不利である。またこの転
写シートでは、収縮応力の異なる媒体同志を単に積層し
ているためカールが生じ、搬送の際の走行不良が起こり
易く、更に、インキ面と多孔体の接着が十分でないため
に、印字の際多孔膜の破壊が生己ることがあり、繰り返
し使用可能な転写シートの場合には、実用に耐えないこ
とがＶｆｉ認されている。In this transfer sheet, the thickness of the porous film is set thinner than the heat-melting ink layer, so after printing with the thermal head, the amount of ink retained in the porous film and remaining is small, and the ink is It is effective for efficient use. However, since the porous body is not filled with ink in advance, unnecessary energy is consumed until the ink passes through the membrane, which is disadvantageous in terms of thermal response. In addition, because this transfer sheet simply stacks media with different shrinkage stresses, it tends to curl and cause poor running during transportation.Furthermore, the adhesion between the ink surface and the porous material is insufficient, resulting in poor printing. In the case of a transfer sheet that can be used repeatedly, it has been recognized by Vfi that the porous film may be destroyed.
本発明はかかる実情を鑑み、上記の如き熱転写シートに
おける従来技術の改善を成さんとするものであり、多数
回使用可能な熱転写シートの熱感度を向上させ、良質の
画像を形成する感熱転写インキシートを提供すると共に
、インキの転写効率及び繰り返し寿命に関する特性を改
善した多数回使用可能な感熱転写インキシートを提供す
ることにある。In view of the above circumstances, the present invention aims to improve the conventional technology for thermal transfer sheets as described above, and provides a thermal transfer ink that improves the thermal sensitivity of thermal transfer sheets that can be used many times and forms high-quality images. It is an object of the present invention to provide a heat-sensitive transfer ink sheet that can be used many times and has improved characteristics regarding ink transfer efficiency and repetition life.
本発明の感熱転写インキシートは、少なくとも基体上に
常温では固体である熱溶融性インキ層を設□け、更に熱
溶融性インキが充填された多孔構造有する多孔膜インキ
保持層を積層して成ることを特徴とする三層構成である
。感熱転写インキシートの前記熱溶融性インキを充填し
た多孔膜インキ保持層に対面して、被転写用紙を配置し
た後、押圧媒体により、前記基体及び被転写用紙背面双
方より押圧し、感熱転写インキシート基体面側より任意
の画像信号に対応して熱エネルギーを発生させる手段を
有した加熱印字体により、部分的に加熱することで熱溶
融性インキを流動化せしめ、貫通孔を通じて、熱溶融性
インキを押し出し、被転写用紙に転写を行なう。The heat-sensitive transfer ink sheet of the present invention is formed by providing a heat-melting ink layer that is solid at room temperature on at least a substrate, and further laminating a porous film ink retaining layer having a porous structure filled with heat-melting ink. It has a three-layer structure, which is characterized by: After placing the transfer paper facing the porous ink retaining layer filled with the heat-melting ink of the heat-sensitive transfer ink sheet, the heat-sensitive transfer ink is pressed from both the substrate and the back of the transfer paper using a pressing medium. A heating printing body that has means for generating thermal energy in response to an arbitrary image signal from the sheet base surface side partially heats the hot-melt ink to fluidize it, and prints the hot-melt ink through the through-holes. Push out the ink and transfer it to the paper to be transferred.
以下、本発明をより明瞭にならしむるため、図面を参照
しつつ詳細に説明する。Hereinafter, in order to make the present invention more clear, the present invention will be described in detail with reference to the drawings.
第１図及び第２図は本発明において適用する感熱転写イ
ンキシートの構成例の断面概略説−図である。第１図及
び第２図において感熱転写インキシート１及びＩＢは各
々基体２上に□色材７を含む□熱溶融性インキ層３と多
孔膜４．４Ｂ内に、熱溶融性インキ５．５Ｂを充填した
多孔膜インキ保持層６．６Ｂを積層して成るものである
。多孔膜４及び４Ｂの断面形状は、各々、熱溶融性イン
キ層３まで貫通した独立孔及び三次元的綱状に、貫通じ
た連通孔を有している。FIGS. 1 and 2 are schematic cross-sectional views of an example of the structure of a thermal transfer ink sheet applied in the present invention. In FIGS. 1 and 2, the heat-sensitive transfer ink sheets 1 and IB are each coated with □ a heat-fusible ink layer 3 containing a coloring material 7 □ a heat-fusible ink layer 3 and a porous film 4.4B on a substrate 2, and a heat-fusible ink 5.5B. The porous ink retaining layer 6.6B filled with the ink retaining layer 6.6B is laminated. The cross-sectional shapes of the porous membranes 4 and 4B each have independent holes penetrating to the heat-fusible ink layer 3 and communicating holes penetrating in a three-dimensional line shape.
基体２は熱伝導性の高い゛緻密で薄く平滑な媒体であり
、熱溶融性インキ３の基体２の背面８への漏洩を防ぎ、
加熱印字体等への汚染を防ぐためのもので従来公知の基
体が用いられる。−例をあげればポリエチレンテレフタ
レートの様なフィルム状のもの或いはコンデンサーペー
パーの様なｆｉ葉紙状のも′のであり、転写時における
熱応答性、更に機械的強度を考慮した場合、３〜１５（
μ−）の厚みのものが好適であるが、これに限定はされ
ない。The substrate 2 is a dense, thin, and smooth medium with high thermal conductivity, which prevents the hot-melt ink 3 from leaking to the back surface 8 of the substrate 2.
A conventionally known substrate is used to prevent contamination of heated printed bodies and the like. - Examples include film-like materials such as polyethylene terephthalate, and paper-like materials such as condenser paper.
A thickness of .mu.-) is suitable, but is not limited to this.
更に、熱溶融性インキ層３と対面し、加熱印字体等と接
する基体２の背面８に耐熱性処理が施してあってもよい
。Furthermore, a heat-resistant treatment may be applied to the back surface 8 of the base 2, which faces the heat-fusible ink layer 3 and comes into contact with a heated printed body or the like.
基体２に設けられる熱溶性インキＮ３としては従来公知
の熱溶融性インキがそのまま用いられ、着色材、ワック
ス類、樹脂類、油類等から構成される０着色剤としては
例えば、顔料系でいえば黒色の場合はカーボンブラック
、オイルブラック等を用いることが出来、カラーの場合
にはベンジンイエロー、ローダミンレーキＢ１フタロシ
アニンブルー等の通常のものを用いることが出来る。勿
論、用途により染料を用いることも特に規定はされるも
のではない。ワックス類としては、例えばパラフィンワ
ックス、マイクロクリスタリンワックス、カルナバワッ
クス、モンタンワツクス、木ろう、みつろう、低分子量
ポリエチレンワックス、合成ワックス等が用いられる。As the heat-melting ink N3 provided on the substrate 2, a conventionally known heat-melting ink can be used as is, and the coloring agent composed of colorants, waxes, resins, oils, etc. may be, for example, pigment-based. For example, in the case of black, carbon black, oil black, etc. can be used, and in the case of color, ordinary ones such as benzine yellow and rhodamine lake B1 phthalocyanine blue can be used. Of course, there is no particular restriction on the use of dyes depending on the purpose. Examples of waxes that can be used include paraffin wax, microcrystalline wax, carnauba wax, montan wax, Japanese wax, beeswax, low molecular weight polyethylene wax, and synthetic wax.
樹脂類としてはエチレン−酢酸ビニル共重合体、ポリア
ミド樹脂、ロジン系誘導体、石油樹脂、アクリル樹脂、
ポリエステル樹脂等が用いられる。油類としては鉱油。Examples of resins include ethylene-vinyl acetate copolymer, polyamide resin, rosin derivatives, petroleum resin, acrylic resin,
Polyester resin or the like is used. Mineral oil is an oil.
植物油等が用いられる。Vegetable oil etc. are used.
熱溶融性インキ層３は着色剤を前記バインダーに適宜、
混合、分散処理を施し、ホットメルト型、溶剤型或いは
水性型インキと成し、グラビア法やロールロータ法、フ
レキソ印刷法を用いて形成される。The heat-melting ink layer 3 is made by adding a colorant to the binder as appropriate.
It is mixed and dispersed to form a hot-melt, solvent-based, or water-based ink, and is formed using a gravure method, a roll rotor method, or a flexographic printing method.
一方、熱溶融性インキＮ３上にはこのインキ５．５Ｂを
多孔膜４．４Ｂに充填した多孔膜インキ保持層６，６Ｂ
が積層されいてるが、この多孔膜インキ保持層６．６Ｂ
の厚さは熱溶融性インキ層３の厚さよりも、機械的強度
を維持できる範囲で、できる限り薄く設定することが望
ましい。何故ならば多孔膜４．４Ｂには機械的な耐久強
度を持たせるため、孔空げきの体積に制限があるため、
その結果として、この空げきに充填されるインキ量にも
限界が生じ、このため、より多くの熱溶融性インキを多
孔膜４．４Ｂに充填しようとすれば、よりかさ高い多孔
膜インキ保持層６．６Ｂが必要となり熱感度の面で不利
となり、高速度記録化が困難になるだけではなく、厚膜
化成の搬送不良、リボンコアーに巻き付けたときの記録
長の短縮による記録容量の減少など不利な点が多いから
である。On the other hand, on the heat-melting ink N3, porous membrane ink retaining layers 6, 6B are formed by filling the porous membrane 4.4B with this ink 5.5B.
are laminated, but this porous membrane ink retaining layer 6.6B
It is desirable to set the thickness as thin as possible than the thickness of the heat-fusible ink layer 3 within a range that can maintain mechanical strength. This is because porous membrane 4.4B has a limited pore volume in order to have mechanical durability.
As a result, there is a limit to the amount of ink that can be filled into this gap, and therefore, if you try to fill the porous membrane 4.4B with a larger amount of hot-melt ink, the porous membrane ink retaining layer becomes bulkier. 6.6B is required, which is disadvantageous in terms of thermal sensitivity, which not only makes high-speed recording difficult, but also has disadvantages such as poor transportation of thick film coatings and a decrease in recording capacity due to shortened recording length when wound around a ribbon core. This is because there are many points.
感度を向上させるためには、前述した如き、必要最小限
の薄い多孔膜４，４Ｂに熱溶融性インキ５．５Ｂを保持
させ、多数回の転写に必要なインキ量は下層にある熱溶
融性インキ層３から補給する三層構成とした方が都合が
良い。この場合に、多孔膜インキ保持ＩＪ６．６ Ｂの
厚みは０．３〜５（μｍ）の範囲内で本発明による効果
を発揮する。この多孔膜インキ保持層６．６Ｂの厚さが
０．３（μ１１）以下であると、機械的強度が足りない
ために、多孔膜が破損して多数回使用可能なインキシー
トの機能を果さなくなり、一方、５（μｍ）以上である
と熱感度が落ちるため、高品質、高濃度の画像を得るこ
とが難しいだけでなく、感熱ヘッドにより印字された後
に、多孔膜４．４′に保持されて残存するインキ量が多
く、インキの効率利用にも問題があるまた、多孔膜イン
キ保持層６．６Ｂを構成する多孔膜４．４Ｂの独立孔及
び連通孔の孔径範囲は熱溶融性インキ３，５．５Ｂの最
小粒子径と感熱転写プリンターの単位記録画素の大きさ
に依存する。孔径の最小径は熱溶融性インキ３，５．５
Ｂの分散状態にも依るが、０．５（μ＠）以上、最大径
は１１１１当り６本の発熱素子を備えている感熱プリン
ターの場合を想定して１６０（μｍ）以下の孔径が望ま
しい、また、多孔膜４．４Ｂのインキが充填されていな
い状態での空げき率は多孔膜の機械的強度、発熱体の画
素密度、感熱転写インキシートの熱感度との兼ね合いか
ら３０〜９７％の範囲に設定される。In order to improve the sensitivity, as mentioned above, 5.5B of heat-melting ink is held in the minimum necessary thin porous membrane 4, 4B, and the amount of ink required for multiple transfers is limited to the heat-melting ink in the underlying layer. It is more convenient to adopt a three-layer structure in which ink is supplied from the ink layer 3. In this case, the effect of the present invention is exhibited when the thickness of the porous ink-retaining membrane IJ6.6 B is within the range of 0.3 to 5 (μm). If the thickness of the porous membrane ink holding layer 6.6B is less than 0.3 (μ11), the mechanical strength will be insufficient and the porous membrane will be damaged and cannot function as an ink sheet that can be used many times. On the other hand, if it is 5 (μm) or more, the thermal sensitivity decreases, which not only makes it difficult to obtain high-quality, high-density images. The amount of ink retained and remaining is large, and there is a problem in the efficient use of ink.In addition, the pore diameter range of the independent pores and continuous pores of the porous membrane 4.4B constituting the porous membrane ink retention layer 6.6B is thermofusible. It depends on the minimum particle diameter of Ink 3 and 5.5B and the size of the unit recording pixel of the thermal transfer printer. The minimum diameter of the pores is thermofusible ink 3.5.5
Although it depends on the dispersion state of B, the pore diameter is preferably 0.5 (μ@) or more, and the maximum diameter is 160 (μm) or less assuming the case of a thermal printer equipped with 6 heating elements per 1111. In addition, the void ratio of the porous membrane 4.4B when it is not filled with ink is 30 to 97% due to the balance between the mechanical strength of the porous membrane, the pixel density of the heating element, and the thermal sensitivity of the thermal transfer ink sheet. Set to range.
更に、多孔膜４．４Ｂの前記空げきに保持される熱溶融
性インキ５．５Ｂの体積充填率にも制限が加えられる。Furthermore, a limit is also placed on the volumetric filling rate of the heat-melting ink 5.5B held in the voids of the porous membrane 4.4B.
多孔膜４．４Ｂの空げきに熱溶融性インキ５．５Ｂがま
ったく保持されていない状態、すなわち、単に熱溶融性
インキ層３の上に多孔体が積層されている状態（インキ
の体積充填率Ｏ％）では、収縮応力の異なる材質同志を
単純に積層しているためカールが生じやすく、また熱溶
触性インキＮ３と多孔膜４．４Ｂの接着が十分でないた
めに、印字の際、多孔膜の破壊が起こり易り、繰り返し
使用可能な感熱転写インキシートの場合には実用に耐え
ないことが確認されている。A state in which no thermofusible ink 5.5B is held in the voids of the porous film 4.4B, that is, a state in which the porous body is simply laminated on the thermofusible ink layer 3 (volume filling rate of ink 0%), curling easily occurs because materials with different shrinkage stress are simply laminated together, and the adhesion between hot melt ink N3 and porous film 4.4B is insufficient, so when printing, the porous film It has been confirmed that this method is not practical in the case of heat-sensitive transfer ink sheets that can be used repeatedly.
多孔膜４．４Ｂの空げきに熱溶融性インキ５．５Ｂが完
全に充填された状態（インキの体積充填率１００χ）で
は、インキ体積充填率０％の場合に比べ、多孔膜内の空
げきを熱溶融性インキが透過するためのエネルギーを必
要としないため、熱応答性が向上し、更には熱溶融性イ
ンキ層３と多孔膜４゜４Ｂ間の接着力が強化される為、
多数回の繰り返しに耐え得る強度を得ることが可能にな
る。また、カールによる搬送不良の問題も改善される。When the voids in the porous membrane 4.4B are completely filled with the heat-fusible ink 5.5B (ink volume filling rate 100χ), the voids in the porous membrane are smaller than when the ink volume filling rate is 0%. Since no energy is required for the heat-fusible ink to penetrate, the thermal response is improved, and furthermore, the adhesive force between the heat-fusible ink layer 3 and the porous membrane 4゜4B is strengthened.
It becomes possible to obtain strength that can withstand many repetitions. Furthermore, the problem of poor conveyance due to curling is also improved.
多孔膜４．４Ｂの空げきへの熱溶融性インキ５．５Ｂの
体積充填率は高ければ高い程良いが、実用的な体積充填
率は３〜１００χの範囲に設定される。The higher the volume filling rate of the thermofusible ink 5.5B into the voids of the porous membrane 4.4B, the better, but the practical volume filling rate is set in the range of 3 to 100χ.
多数回の転写を行なうのに必要なインキ量を供給する熱
溶融性インキ層３の塗布量は、必要とする繰り返し数に
も依存するが、実用的なエネルギー感度の面から、０．
４〜２０ｇ／ｎｆの範囲に設定することが可能であるが
、３回以上の繰り返しを行い、高解像度、高濃度の画像
を期待する場合には、２〜１０ｇ／イの塗布量が好しい
、この場合に積層する、熱溶融性インキ５．５Ｂを充填
した多孔膜インキ保持層６．６Ｂの厚みが、熱溶融性イ
ンキ層３の厚みよりも薄いときに、本発明による多数回
使用可能な感熱転写インキシートの機能を最大限に発揮
することが可能となる。The amount of coating of the heat-fusible ink layer 3 that supplies the amount of ink necessary for performing multiple transfers depends on the number of repetitions required, but from the standpoint of practical energy sensitivity, it should be 0.
It is possible to set the coating amount in the range of 4 to 20 g/nf, but if repeating three or more times and expecting high resolution and high density images, a coating amount of 2 to 10 g/nf is preferable. In this case, when the thickness of the porous membrane ink retaining layer 6.6B filled with the heat-fusible ink 5.5B that is laminated is thinner than the thickness of the heat-fusible ink layer 3, the present invention can be used multiple times. This makes it possible to maximize the functionality of thermal transfer ink sheets.
このような多孔膜インキ保持層６．６Ｂの構成成分であ
る多孔Ｈ４，４Ｂに使用される高分子は耐熱温度すなわ
ち、軟化温度或いは溶融温度が１００°Ｃ以上のものが
好しく、ポリ酢酸ビニル、塩化ビニル−酢酸ビニル共重
合体、ポリビニルブチラール、アクリル樹脂、ポリアミ
ド、アクリロニトリル−塩化ビニル共重合体、セルロー
ス系プラスチック、ポリエステル、ポリウレタン、合成
ゴム及びこれらの混合物を用いることができる。印刷或
いは塗工適性の向上及び見かけの耐熱性向上のため、構
成成分として、炭酸カルシウム、酸化チタン、酸化ケイ
素、酸化亜鉛、カーボン等の顔料粒子を含んでも良く、
適切な溶媒、非溶媒又は貧溶媒を選択することによりス
ラリー状態を呈する組成物を用いることが可能である。The polymer used for the porous H4, 4B, which is a component of the porous ink retaining layer 6.6B, preferably has a heat-resistant temperature, that is, a softening temperature or a melting temperature of 100°C or higher, and polyvinyl acetate. , vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, acrylic resin, polyamide, acrylonitrile-vinyl chloride copolymer, cellulose plastic, polyester, polyurethane, synthetic rubber, and mixtures thereof. In order to improve suitability for printing or coating and improve apparent heat resistance, pigment particles such as calcium carbonate, titanium oxide, silicon oxide, zinc oxide, and carbon may be included as constituent components.
By selecting an appropriate solvent, non-solvent or anti-solvent, it is possible to use a composition exhibiting a slurry state.
本発明の多数回使用可能な感熱転写インキシートは、上
記高分子スラリーを熱溶融性インキ層３の上に塗工した
後、良溶媒と貧溶媒の蒸発速度の差を利用して貫通した
空げきを有する微多孔構造物を得、更に熱処理を施して
多孔膜４，４Ｂ中に熱溶融性インキ５．５Ｂを充填する
ことにより得られる。The heat-sensitive transfer ink sheet of the present invention, which can be used many times, is produced by coating the polymer slurry on the heat-melting ink layer 3, and then using the difference in evaporation rate between a good solvent and a poor solvent to create a void that penetrates the sheet. It is obtained by obtaining a microporous structure having a microporous structure, and then subjecting it to heat treatment and filling the porous membranes 4, 4B with heat-fusible ink 5.5B.
かくして得られた三層構成より成る感熱転写インキシー
トを用い、本発明の熱転写記録方法の一実施例を図面に
添って説明する。An embodiment of the thermal transfer recording method of the present invention will be described with reference to the drawings using the thus obtained thermal transfer ink sheet having a three-layer structure.
まず、第３図において、先に例示した如き感熱転写イン
キシートｌの多孔膜インキ保持層６に対面して被転写用
紙９を配置した後、加熱印字体ｌ・０と少なくともその
表面にゴム状弾性体１２−ａを有して成る圧力ローラー
１２間に挿入し、加圧状態に保つ、圧力ローラー１２は
ゴム状弾性体１２−ａを支持体１２−ｂに設けたもので
もよく一体成型品であっでもよい、しかる後、電源部１
１により発生した信号が電気回路を経て加熱印字体１０
に伝わり、発熱し、その接触箇所にある熱溶融性インキ
５−ａが基体２を伝播した熱により流動化し、強い押圧
のもとで変形し、多孔膜４の細孔４−ａを伝わって押し
出され、被転写用紙９に到達する。しかる後、感熱転写
インキシート１と被転写用紙９を搬送ローラ一部１３−
８ 、１３− ｂにおいて剥離すると転写画像５−ｂを
得ることが出来る。上記において、加熱印字体ｌＯが発
熱した状態で圧力ローラー１２を矢印１４方向に回転さ
せれば、連続的に転写することが可能である。First, in FIG. 3, after placing the transfer paper 9 facing the porous ink retaining layer 6 of the heat-sensitive transfer ink sheet l as exemplified above, the heated printing body l.0 and at least a rubber-like The pressure roller 12, which is inserted between pressure rollers 12 having an elastic body 12-a and kept in a pressurized state, may be an integrally molded product in which a rubber-like elastic body 12-a is provided on a support body 12-b. After that, power supply section 1
The signal generated by 1 passes through an electric circuit to the heated printed body 10.
The hot melt ink 5-a at the contact point is fluidized by the heat propagated through the base 2, deformed under strong pressure, and transmitted through the pores 4-a of the porous membrane 4. It is pushed out and reaches the transfer paper 9. After that, the thermal transfer ink sheet 1 and the transfer paper 9 are conveyed by a portion of the conveying roller 13-.
8 and 13-b, a transferred image 5-b can be obtained. In the above, continuous transfer is possible by rotating the pressure roller 12 in the direction of the arrow 14 while the heated printed body 1O generates heat.
次に多数回使用の原理を第４図にて説明する。Next, the principle of multiple use will be explained with reference to FIG.
第４図において、加熱印字体及び加圧ローラーは省略し
であるが、その位置関係は第３図に従う。In FIG. 4, the heated printed body and the pressure roller are omitted, but their positional relationship is as shown in FIG. 3.
第４図において５−１．５−２．５−３は順に熱転写記
録シートの同一位置を同一エネルギーで印字し、繰り返
し数が増加した除電された転写形態の模式図を便宜的に
説明しである。In Fig. 4, 5-1.5-2.5-3 are schematic diagrams of a transfer mode in which the same position on the thermal transfer recording sheet is printed with the same energy and the number of repetitions is increased for convenience. be.
まず、加熱印字体により加熱された熱溶融性インキ層３
及び多孔膜４内に充填された熱溶融性インキ５の５−１
部分は一様に流動状態となり、加圧されながら孔４−ａ
を伝わって流れ始める・熱溶融性インキが基体２上に十
分に多く保持されているために、被転写紙９への転写良
５−１ｔも多く、高い反射濃度が得られる。First, the heat-melting ink layer 3 heated by the heated printing body
and 5-1 of the hot melt ink 5 filled in the porous membrane 4
The portion uniformly becomes a fluid state, and while being pressurized, the hole 4-a
Since a sufficient amount of the heat-melting ink is retained on the substrate 2, a large amount of the heat-melting ink is transferred to the transfer paper 9, and a high reflection density is obtained.
５−２部分５−１部分の状態に比べ基体２上に保持され
ている熱溶融性イジキが少ないために、印字の繰り返し
数が増すにつれ、被転写紙９に転写されるインキ量５−
２ｔは少なくなり、反射濃度が減少していく傾向のある
ことを示している。Since there is less heat-melting material retained on the substrate 2 compared to the state of the portion 5-2 and the portion 5-1, the amount of ink transferred to the transfer paper 9 decreases as the number of printing repetitions increases.
2t decreases, indicating that the reflection density tends to decrease.
更に、繰り返し数が増加した５−３部分では、多孔膜イ
ンキ保持層内に充填されていた熱溶融性インキ５までも
被写体用紙９に移行し、感熱転写インキシート１の５−
３部分のインキはほとんど消費され、インキが効率的に
無駄なく使用できることを示している。Furthermore, in the 5-3 portion where the number of repetitions has increased, even the heat-melting ink 5 filled in the porous membrane ink holding layer is transferred to the subject paper 9, and the 5-3 portion of the thermal transfer ink sheet 1 is
Most of the ink in the three parts was consumed, indicating that the ink can be used efficiently and without waste.
本発明による感熱転写インキシートは以上のような構成
であるため、従来のワンタイム型の転写シートに比べ、
多数回の使用が可能であり、かつ従来の多数回使用型の
転写シートの提案よりも薄層化されているため、低いエ
ネルギーの印加で、高品位、高解像度画像を繰り返し形
成できる。更に付加価値として、記録長も長くなるため
、ランニングコストを大巾に減少させる効果がある。以
下本発明の好しい実施例を述べる。Since the thermal transfer ink sheet according to the present invention has the above-mentioned structure, compared to the conventional one-time type transfer sheet,
Since it can be used multiple times and is thinner than conventional multi-use transfer sheet proposals, high-quality, high-resolution images can be repeatedly formed with low energy application. Furthermore, as an added value, the recording length is also increased, which has the effect of significantly reducing running costs. Preferred embodiments of the present invention will be described below.
下記処方Ａにて示すパラフィンワックスを主成分とする
インキ材料組成物をロール表面温度を１１０℃に加熱し
た３本ロールミル中で錬肉し、ホットメルト型インキを
作製し、フレキソ印刷法にて６（μｍ）を有するポリエ
チレンテレフタレートフィルムに塗工して、３（μｍ）
、４（μ＋ａ）、５（μｍ）の熱溶融性インキ層を得た
。An ink material composition mainly composed of paraffin wax shown in the following formulation A was milled in a three-roll mill heated to a roll surface temperature of 110°C to produce a hot-melt ink, and then printed using a flexographic printing method. (μm) by coating it on a polyethylene terephthalate film having a diameter of 3 (μm).
, 4 (μ+a), and 5 (μm) heat-fusible ink layers were obtained.
（処決Ａ）
パラフィンワックス ・・・７５重量部（融点
６７℃９日本精蝋社製）
エチレン−酢酸ビニル共重合体・・・５ 〃（日本ユニ
カー社製）
カーボンブラック ・・・２０ −（日本化
薬社製）
次いで下記処方Ｂにて示す材料組成にて多孔膜用塗液を
作製した。これをグラビアロールコータを用いて上記３
種の塗布量の基材インキ上に塗工し、予備乾燥し、０．
６．１．５．３．０（ｇ／イ）の塗布量を有する多孔膜
を形成した。更にアニーリング工程において、１００″
Ｃの熱風を当て、残留溶剤の除去を行なうと共に、多孔
膜内に処決Ａで示す熱溶融性インキを、多孔膜の空げき
に対し、約１００％充填し、本発明の感熱転写インキシ
ートを得た。(Decision A) Paraffin wax...75 parts by weight (melting point 67°C9 manufactured by Nippon Seiro Co., Ltd.) Ethylene-vinyl acetate copolymer...5 (manufactured by Nippon Unicar Co., Ltd.) Carbon black...20 -( (manufactured by Nippon Kayaku Co., Ltd.) Next, a coating liquid for a porous membrane was prepared using the material composition shown in Formulation B below. This is coated using a gravure roll coater as described above.
It is coated on the base ink of a seed coating amount, pre-dried, and 0.
A porous film having a coating amount of 6.1.5.3.0 (g/i) was formed. Furthermore, in the annealing process, 100″
The heat-sensitive transfer ink sheet of the present invention is prepared by applying hot air of step C to remove residual solvent, and filling approximately 100% of the voids in the porous film with the heat-melting ink shown in treatment A within the porous film. I got it.
（処方Ｂ）
セルロースアセテートプロピオネート
（住友バイエルウレタン社製）・・・１０重置部メチル
エチルケトン ・・・８０〃水
・・・１０ ＃得られ
たシートの断面を電子顕微鏡写真に撮り観察した結果、
多孔膜インキ保持層の厚みは以下に示す通りであり、熱
溶融性インキの上に該インキが充填された多孔膜インキ
保持層を積層する構造であることが確認された。(Formulation B) Cellulose acetate propionate (manufactured by Sumitomo Bayer Urethane)...10 parts Methyl ethyl ketone...80 water
...10 # As a result of observing the cross section of the obtained sheet by taking an electron micrograph,
The thickness of the porous membrane ink retaining layer was as shown below, and it was confirmed that the porous membrane ink retaining layer filled with the ink was laminated on top of the hot-melt ink.
予備乾燥時塗布量 多孔膜インキ保持層の厚み０．６
（ｇ／イ） ０．４ （＃
１ｌ）１．５ （ｇ／ｎｆ）
１．０ （＃ｌ１）３．０ （ｇ／イ）
２．０ （μｍ）また、多孔膜インキ保持層表面の電
子顕微鏡観察では、多孔膜孔径は５〜８（μｍ）でほぼ
一様分布していることが観察された。この感熱溶融性イ
ンキシートを市販のハンディ−ワードプロセッサーを用
い、同一箇所を繰り返し印字し評価した。Coating amount during pre-drying: Thickness of porous membrane ink retaining layer: 0.6
(g/a) 0.4 (#
1l) 1.5 (g/nf)
1.0 (#l1) 3.0 (g/i)
2.0 (μm) Further, in electron microscope observation of the surface of the porous membrane ink retaining layer, it was observed that the porous membrane pore diameter was approximately uniformly distributed in the range of 5 to 8 (μm). This heat-sensitive melt ink sheet was evaluated by repeatedly printing on the same location using a commercially available handheld word processor.
ワードプロセッサーとして日本電気社製文豪ｍ１ｎｉ３
Ｅを用い、印字速度は標準モード、印字電圧は中位モー
ドとした０本州製紙社製の熱転写用紙にベタで印字記録
し、反射濃度をサクラ濃度計ＰＤ＾−６５（小西六写真
工業社製）で測定した。NEC Bungo m1ni3 as a word processor
The print was recorded solidly on thermal transfer paper manufactured by Honshu Paper Co., Ltd. using a standard printing speed and medium printing voltage mode, and the reflection density was measured using a Sakura Densitometer PD^-65 (manufactured by Konishiroku Photo Industry Co., Ltd.). ) was measured.
第５図に多孔膜の厚みの異なる感熱転写インキシートを
用いたときの繰り返しの印字数と反射濃度の関係を示す
、熱溶性インキは６（μｍ）のポリエチレンテレフタレ
ートフィルムに４ｇ／ｒｒｆ塗布した ものを用い、多
孔膜インキ保持層の厚みは０．４゜１．０．２．０（μ
ｍ）の３種である。多孔質インキ保持層の厚い程、熱転
写用紙に記録されたベタ印字物の反射濃度は低く、熱感
度の低い傾向が確認された。３種の感熱転写インキシー
ト資料とも６回までの使用に対し、反射濃度０．６以上
の転写画像を得ることが出来、転写後の多孔膜インキ保
持層の形状に何ら異常はなかった。Figure 5 shows the relationship between the number of repeated prints and reflection density when using heat-sensitive transfer ink sheets with different porous film thicknesses.The heat-soluble ink was applied at 4 g/rrf to a 6 (μm) polyethylene terephthalate film. The thickness of the porous membrane ink holding layer is 0.4゜1.0.2.0 (μ
There are three types of m). It was confirmed that the thicker the porous ink holding layer, the lower the reflection density of the solid print recorded on the thermal transfer paper, and the lower the thermal sensitivity. All three types of thermal transfer ink sheet materials were used up to 6 times, and transferred images with a reflection density of 0.6 or higher could be obtained, and there was no abnormality in the shape of the porous membrane ink holding layer after transfer.
第６図に熱溶融性インキ層の塗布量の異なる感熱転写イ
ンキシートを用いたときの繰り返しの印字数と反射濃度
の関係を示す、多孔膜インキ保持層の厚みは０．４（μ
ｍ）で、熱溶融性インキ層の塗布量が３．４．５ Ｃ
ｇ／ｒｄ＞の３種の試料の結果である。熱溶融性インキ
層の塗布量が多くなる程、２回までの熱感度は低く、反
射濃度の低くなる傾向が観察された。３回目以降の印字
では（５ｇ／ｒｒｆ）にインキ塗布量を初期設定したも
のが反射濃度も高く、繰り返し数に対する濃度変化も安
定していた。６回までの使用に対し、反射濃度は０．６
〜１．３であった。熱溶融性インキの塗布量を変えた試
料でも多孔膜インキ保持層の形状に何ら異常はなかっFigure 6 shows the relationship between the number of repeated prints and the reflection density when using heat-sensitive transfer ink sheets with different coating amounts of the heat-fusible ink layer.
m), the coating amount of the hot-melt ink layer is 3.4.5C
g/rd>. It was observed that as the amount of the heat-fusible ink layer applied increased, the thermal sensitivity up to two times was lower and the reflection density tended to be lower. In the third and subsequent printings, when the ink application amount was initially set to (5 g/rrf), the reflection density was high and the density change with respect to the number of repetitions was stable. Reflection density is 0.6 for up to 6 uses
It was ~1.3. There was no abnormality in the shape of the porous membrane ink retaining layer even in samples where the amount of hot-melt ink applied was changed.
図面は本発明の実施例を示すもので、第１図は本感熱転
写インキシートの断面で現わした説明図：第２図は他の
例の本感熱転写インキシートの断面で現わした説明図、
第３図は本シートを用いた記録シートの記録方法を現わ
す断面説明図、第４図は第１図に示した本シートを用い
た場合の記録原理を現わす断面説明図、第５図及び第６
図は本シートを用いた場合の記録特性を現わすグラフ図
をそれぞれ示す。
１、ＩＢ・・・感熱転写インキシート
２ ・・・・・・・・・基体
３ ・・・・・・・・・熱溶融性インキ層４．４Ｂ・・
・多孔膜
５．５Ｂ・・・熱溶融性インキ
６．６Ｂ・・・多孔膜インキ保持層
７ ・・・・・・・・・色材
多孔質膜の厚みの異なるマルチユースリボンを用いたと
きの繰り返し数と反射濃度の関係
第５図
繰り返し数
熱溶融性インキ居の塗布量の異なるマルチユースリボン
を用いたときの繰り返し数と反射濃度の関係第６図The drawings show examples of the present invention, and Fig. 1 is an explanatory diagram showing a cross section of the present thermal transfer ink sheet; Fig. 2 is an explanatory diagram showing a cross section of the present thermal transfer ink sheet of another example. figure,
FIG. 3 is a cross-sectional explanatory diagram showing the recording method of the recording sheet using this sheet, FIG. 4 is a cross-sectional explanatory diagram showing the recording principle when using the present sheet shown in FIG. 1, and FIG. and the sixth
The figures each show a graph showing the recording characteristics when this sheet is used. 1. IB...Thermal transfer ink sheet 2...Base 3......Thermofusible ink layer 4.4B...
・Porous film 5.5B...Thermofusible ink 6.6B...Porous film ink retaining layer 7...When using multi-use ribbons with different thicknesses of color material porous films The relationship between the number of repetitions and reflection density Figure 5 The relationship between the number of repetitions and reflection density when using multi-use ribbons with different coating amounts of heat-fusible ink deposits Figure 6
Claims (1)
該熱溶融性インキを充填した多孔膜インキ保持層を積層
して成る感熱転写インキシート。 ２）多孔膜の孔径が０．５〜１６０（μｍ）である特許
請求の範囲第１項記載の感熱転写インキシート。 ３）熱溶融性インキを充填した多孔膜インキ保持層の厚
さが０．３〜５（μｍ）である特許請求の範囲第１項記
載の感熱転写インキシート。 ４）多孔膜内に保持される熱溶融性インキの体積充填率
が３〜１００％である特許請求の範囲第１項記載の感熱
転写インキシート。 ５）熱溶融性インキ層の厚さが上記熱溶融性インキを充
填した多孔膜インキ保護層の厚さよりも厚い特許請求の
範囲第１項記載の感熱転写シート。[Scope of Claims] 1) A heat-sensitive transfer ink sheet comprising a heat-fusible ink layer provided on a substrate, and a porous membrane ink retaining layer filled with the heat-fusible ink layered thereon. 2) The thermal transfer ink sheet according to claim 1, wherein the porous membrane has a pore diameter of 0.5 to 160 (μm). 3) The heat-sensitive transfer ink sheet according to claim 1, wherein the porous ink retaining layer filled with heat-melting ink has a thickness of 0.3 to 5 (μm). 4) The heat-sensitive transfer ink sheet according to claim 1, wherein the volume filling rate of the heat-melting ink held within the porous film is 3 to 100%. 5) The thermal transfer sheet according to claim 1, wherein the thickness of the heat-fusible ink layer is thicker than the thickness of the porous film ink protective layer filled with the heat-fusible ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61276125A JPS63128989A (en) | 1986-11-19 | 1986-11-19 | Thermal transfer ink sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61276125A JPS63128989A (en) | 1986-11-19 | 1986-11-19 | Thermal transfer ink sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63128989A true JPS63128989A (en) | 1988-06-01 |
Family
ID=17565138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61276125A Pending JPS63128989A (en) | 1986-11-19 | 1986-11-19 | Thermal transfer ink sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63128989A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605862B2 (en) * | 1973-04-05 | 1985-02-14 | ホバート・イーターナシヨナル・インコーポレーテツド | Washer |
| JPS6040293A (en) * | 1983-08-12 | 1985-03-02 | Fuji Kagakushi Kogyo Co Ltd | Repeatedly usable thermal transfer recording medium |
| JPS60135294A (en) * | 1983-12-22 | 1985-07-18 | Hitachi Chem Co Ltd | Thermal transfer film |
| JPS61112692A (en) * | 1984-11-06 | 1986-05-30 | Olympus Optical Co Ltd | Thermal transfer sheet and transferring method thereof |
-
1986
- 1986-11-19 JP JP61276125A patent/JPS63128989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605862B2 (en) * | 1973-04-05 | 1985-02-14 | ホバート・イーターナシヨナル・インコーポレーテツド | Washer |
| JPS6040293A (en) * | 1983-08-12 | 1985-03-02 | Fuji Kagakushi Kogyo Co Ltd | Repeatedly usable thermal transfer recording medium |
| JPS60135294A (en) * | 1983-12-22 | 1985-07-18 | Hitachi Chem Co Ltd | Thermal transfer film |
| JPS61112692A (en) * | 1984-11-06 | 1986-05-30 | Olympus Optical Co Ltd | Thermal transfer sheet and transferring method thereof |
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