JPS6313781A - Magnetic ink medium - Google Patents
Magnetic ink mediumInfo
- Publication number
- JPS6313781A JPS6313781A JP61157344A JP15734486A JPS6313781A JP S6313781 A JPS6313781 A JP S6313781A JP 61157344 A JP61157344 A JP 61157344A JP 15734486 A JP15734486 A JP 15734486A JP S6313781 A JPS6313781 A JP S6313781A
- Authority
- JP
- Japan
- Prior art keywords
- magnetite
- magnetic ink
- magnetic
- ink
- needle
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 48
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 10
- -1 polyethylene Polymers 0.000 abstract description 8
- 239000004698 Polyethylene Substances 0.000 abstract description 3
- 239000012188 paraffin wax Substances 0.000 abstract description 3
- 229920000573 polyethylene Polymers 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 3
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000012943 hotmelt Substances 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000001993 wax Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004203 carnauba wax Substances 0.000 description 2
- 235000013869 carnauba wax Nutrition 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- USMNOWBWPHYOEA-UHFFFAOYSA-N 3‐isothujone Chemical compound CC1C(=O)CC2(C(C)C)C1C2 USMNOWBWPHYOEA-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 239000004204 candelilla wax Substances 0.000 description 1
- 235000013868 candelilla wax Nutrition 0.000 description 1
- 229940073532 candelilla wax Drugs 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002508 contact lithography Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- IUJAMGNYPWYUPM-UHFFFAOYSA-N hentriacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC IUJAMGNYPWYUPM-UHFFFAOYSA-N 0.000 description 1
- KCNOEZOXGYXXQU-UHFFFAOYSA-N heptatriacontan-19-one Chemical compound CCCCCCCCCCCCCCCCCCC(=O)CCCCCCCCCCCCCCCCCC KCNOEZOXGYXXQU-UHFFFAOYSA-N 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000276 sedentary effect Effects 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- B41M5/38285—Contact thermal transfer or sublimation processes characterised by magnetic components in the transfer ink
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔座業上の利用分野〕
本発明は、少くとも熱エネルギー供給手段と、磁気吸引
力発生手段を用い、可視像全形成はぜる印写装置に用い
るインク媒体に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of sedentary use] The present invention relates to an ink medium used in a full-visible image forming printing device using at least thermal energy supply means and magnetic attraction force generation means.
小型・低価格のノンインパクトプリンティング方式とし
て、磁気インクを用いたものが数多く発案されている。Many small-sized, low-cost, non-impact printing methods using magnetic ink have been proposed.
？ｌＪえげ特開昭５２−９６５４１にある方式は、熱供
給手段とに別に設けられた磁気吸引力発生：）一段に１
って、熱像に対応する該インクに磁気秋引力全作用はぜ
、転写ざぜるものである。? The method described in Japanese Patent Application Laid-Open No. 52-96541 is that the magnetic attraction force is generated separately from the heat supply means.
Therefore, the entire magnetic attraction force acts on the ink corresponding to the thermal image, causing the transfer.
更にこの方式に用いられるインク媒体としては、特開昭
５９−５６５９６がある。このインク媒体は支持体層と
該支持体層に保持された熱塑性磁性インク層からなり、
該熱塑性インク層としては、磁性体粒子と（必要ならば
、染料・顔料等適当な着色剤を加えて）、ろう様物質の
単独或いは史に熱可塑性樹脂とから組成されたものであ
った。Further, as an ink medium used in this method, there is Japanese Patent Application Laid-Open No. 59-56596. The ink medium comprises a support layer and a thermoplastic magnetic ink layer retained on the support layer;
The thermoplastic ink layer was composed of magnetic particles (additionally, if necessary, a suitable coloring agent such as a dye or pigment), and a waxy substance alone or in combination with a thermoplastic resin.
しかし、前述の従来技術のインク媒体では、転写後の被
転写紙とインク媒体との引き剥し時において、第６図を
用いて説明すると、転写部のインりを被転写紙に転写で
ぜる為の促進力となるＦＡ（インク−被転写紙間接層力
）、及びＦＢ（インク凝集力）が、転写を妨げる力、Ｆ
Ｃ（インク−（支持体）間接着力）、及びＦｏ（記録部
インク−非記録部インク間結会力）工り劣るかまたは声
」等ｌ為、表するにＦｉｌ、ＦＡ≦ＦＯ，ＦＤとなって
し１つ為、インクは被転写紙に転写されず、支持体へ残
ってし１う等の転写不良を起こすという問題点２］ｌ−
市していた。However, with the ink medium of the above-mentioned prior art, when the transfer paper and ink medium are peeled off after transfer, as explained using FIG. FA (ink-to-transfer paper interlayer force), which promotes transfer, and FB (ink cohesive force), which acts as a force that prevents transfer, and F
C (adhesive force between ink and support) and Fo (cohesive force between ink in the recording area and ink in the non-recording area), etc., are inferior or weak, so it can be expressed as Fil, FA≦FO, FD. Problem 2: Due to this, the ink is not transferred to the transfer paper and causes transfer defects such as remaining on the support.
It was marketed.
特に、表面平滑性の非常に悪い被転写紙においては、そ
の効果が目覚１しかつ念。This effect is particularly noticeable on transfer papers with very poor surface smoothness.
そこで本発明は、このような問題点を解決するためにな
これたもので、その目的とするところは、表面平１ｉＩ
ｉ？件が非常に悪い被転写紙、１友は、インクとの親和
性かあ−Ｆジ高くないフィルムへも、非常に高品質な文
字、画像を印写できる磁性インク媒体を提供する所にあ
る。The present invention was developed to solve these problems, and its purpose is to
i? One of the main advantages of transfer paper, which has very poor quality, is its affinity with ink - we provide magnetic ink media that can print extremely high quality characters and images even on inexpensive films. .
本発明の磁性インク媒体は、少なくとも、支持層とマグ
ネタイト微粒子を分散した熱可塑性伝気インク膚エクな
る磁気インク媒体において、磁気インク中の針状おＬひ
球状マグネタイトが下記の割合て・ざ有されることケ特
徴とする。The magnetic ink medium of the present invention includes at least a support layer and a thermoplastic conductive ink in which fine magnetite particles are dispersed. It is characterized by being done.
磁気インク中に球状マグネタイトと針状マグネタイト総
言有友が５〜７０ｗｔチであり、針状マグネタイトの球
状マグネタイトに対する比は、１：１０〜５：１である
。The total amount of spherical magnetite and acicular magnetite in the magnetic ink is 5 to 70 wt, and the ratio of acicular magnetite to spherical magnetite is 1:10 to 5:1.
接触型又は、非接触型磁気印字装置において、従来の球
状マグネタイトのみを磁気インク中に用いるものでは転
写効率がわるかった。In contact type or non-contact type magnetic printing devices, transfer efficiency has been poor in conventional magnetic printing devices that use only spherical magnetite in magnetic ink.
しかし本発明では、球状マグネタイト及び針状マグネタ
イト？！−磁気インク層中に取り入れることにより、熱
溶融後の磁性インク層の支持体からの剥離性を向上し友
。これは本発明によＶ磁気インク中にと９入れられた球
状マグネタイトによる粘度の低下および針状マグネタづ
トによる出気七−メントの同上のためである。これによ
りＦＢ、 ＦＡ＞Ｆｃ、ＦＤの関係が成立し、転写効率
の向上になる。However, in the present invention, spherical magnetite and acicular magnetite? ! - By incorporating it into the magnetic ink layer, the peelability of the magnetic ink layer from the support after thermal melting can be improved. This is due to the reduction in viscosity due to the spherical magnetite incorporated into the V magnetic ink according to the present invention and the same as the air discharge due to the acicular magnetite. This establishes the relationship FB, FA>Fc, FD, and improves the transfer efficiency.
本発明で用いる磁性体−マグネタイトは、針状マグネタ
イトの場合長帽５μｍ〜α１μｍであり、長軸と短軸と
の比は（６：１〜２０：１）である。The magnetic substance-magnetite used in the present invention has a long cap of 5 μm to α1 μm in the case of acicular magnetite, and the ratio of the long axis to the short axis is (6:1 to 20:1).
又球状マグネタイトの直径はα１μｍ〜１μｍである。Further, the diameter of the spherical magnetite is α1 μm to 1 μm.
これらのマグネタイト全適当な割合で用いる。尚この際
、息、１類の形状のマグネタイトを用いる場合には、球
状マグネタイトのみの含有では、粘度は下がるが、磁性
モーメントが小ざくｌす、また針状マグネタイトだけを
インク媒体のｓａ性粒子として用いｆｃ場合にに、磁性
モーメントは大きくなるが、粘度があがり転写効率が悪
くなるので、あく１で二種類の形状の磁性体を適当な割
合で混付づせることによジ効果があがる。All of these magnetites are used in appropriate proportions. In this case, when magnetite with a type 1 shape is used, if only spherical magnetite is contained, the viscosity will be lowered, but the magnetic moment will be small. When used as an fc, the magnetic moment increases, but the viscosity increases and the transfer efficiency deteriorates, so mixing two types of magnetic materials in appropriate proportions in the hole 1 increases the magnetic effect. .
本発明の磁性インク媒体を第１図に示す。１１は支持体
、１２は磁性インクＪ曽である。A magnetic ink medium of the present invention is shown in FIG. 11 is a support, and 12 is magnetic ink Jso.
支持体には、耐熱性、機械的強度の万した、平滑性の高
いものが望ましい。材質としては、ポリエチレン、ポリ
プロピレン、ポリエステル、ポリイミド、ポリエーテル
サルボン、ポリエチレンテレフタレート等のｗ脂フィル
ム類で厚ζは１〜５０μｍ、好１しくに１〜５μｍであ
るが工い。The support is preferably one that has good heat resistance, mechanical strength, and high smoothness. The material may be a double fat film such as polyethylene, polypropylene, polyester, polyimide, polyether salvone, or polyethylene terephthalate, with a thickness ζ of 1 to 50 μm, preferably 1 to 5 μm.
磁性インク層のバインダーである熱可塑性Ｍ様物質とし
ては、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ｆ ハワックス、酸化ワックス、キャンデリ
ラワックス、七ンタンワックス、フィッシャーートログ
ノユ ワックス、ポリエチレンワックス、α万しフイン
／ｍ７にマレン酸共串゛合吻、脂肪酸アミド、脂肪ばエ
ステル、ジステアリルケトン、エチレン−酢酸ビニルコ
ポリマー、エチレン−エチルアクリレートコポリマー、
エポキシ樹脂、ブチラール等が挙げら７１．これらを単
独、或いは、複脅して用いる。Examples of the thermoplastic M-like substance that is the binder of the magnetic ink layer include paraffin wax, microcrystalline wax, Calf wax, oxidized wax, candelilla wax, nantan wax, Fischer-to-Rogunoyu wax, polyethylene wax, and α-mash. Fin/m7 with maleic acid, fatty acid amide, fatty acid ester, distearyl ketone, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer,
Epoxy resin, butyral, etc.71. These can be used alone or in combination.
以上磁性インク層は、支持体へホットメルト法か、溶液
法によるコーティングにエフ形成するのが望ましい。The above magnetic ink layer is desirably formed on the support by hot-melt coating or solution coating.
第１図に示した磁性インク媒体全作製し、熱印字全行っ
た。All magnetic ink media shown in FIG. 1 were prepared and all thermal printing was performed.
熱エネルギー印加手段としてサーマルヘッドを磁気吸引
力発生手段として！磁石を用い、印字方法に非接触Ｕ（
第２図）にて行なった。その実施態様１［明すると、第
３図に下す如く、サーマルヘッド（２１）−インク媒体
（２２）−被転写紙（２３）−６石（２４）の順に設置
し、インク媒体の熱可塑性磁性インク（２５）はサーマ
ルヘッドによる支持体（２６）面エフの熱印刃口時（ヘ
ッド直下）において被転写紙と非接触とし、溶融した該
インクを被転写紙に転写ζせるものである。Thermal head can be used as a means of applying thermal energy and as a means of generating magnetic attraction force! Using a magnet, the printing method is non-contact U (
(Fig. 2). Embodiment 1 [To be clear, as shown in FIG. The ink (25) is not in contact with the paper to be transferred when the thermal head heats the surface of the support (26) (directly below the head), and the molten ink is transferred to the paper to be transferred.
支持体に二軸延伸したポリエチレンテレフタレートフィ
ルム（４μｍ）ｋ使用した。A biaxially stretched polyethylene terephthalate film (4 μm) was used as a support.
〔実施例１〕
感性インク増組成 （膜厚１０μｍ）ＯＦｅ０−
Ｆｅ、 ｏ、 ３０ ｗｔ ％
０マイクロクリフタリンワックス（１５８°Ｆ） ３
４ｗｔ％Ｏカルナバワックス ２４
ｗｔ％Ｏエチレン／酢飲ビニル共京会樹脂 ８ｗ
ｔ％（ＶＡ−１９％、ＭＩ−４００）
染料 五９ｗｔ％分散剤
α１ ｗｔ％〔実施例２
〕
磁性インク盾組成 （膜厚１０μｍ）ｏ Ｆｅ０
−Ｆｅ、０３ ３ Ｑ ｗｔ％以
下の組成は実施例１と同様
〔実施例５〕
磁性インク層組成 （膜厚１０μｍ）ｏ Ｆｅ
０−Ｆｅ、０． ６０ ｗｔ
％パラフィンワックス（１５７°Ｆ） ２０ｗ
ｔ％カルナバワックス １０ ｗｔ
％エチレン／酢酸ビニル共貞盆樹脂 ６ ｗｔ％（
ＶＡ−１９％、ＭＩ−４００）
染料 ム９ ｗｔ％分散
剤 １１ｗｔ％〔実施例４
〕
磁性インク層組成 （膜厚１０μｍ）ＯＦｅ０−
Ｆｅ２Ｏ３６０ｗｔ％
針状Ｆｅ０−Ｆｅ、ｏ、 １０ ｗｔ ％球状Ｆ
ｅ０−Ｆ’ｅ、０． ５０ ｗｔ％以下の組Ｈ，は
実施例６と同様
〔比較例１〕
磁性インク層組成 （＠厚１０μｍ）ｏ Ｆｅ０
−１’＋８２０３ （球状Ｆｅ０−Ｆｅ２Ｏ，のみ）
３０ｖｖｔ％以下実施例１と同様の組成
〔比較例２〕
母性インクｔｆ！１組尺 （膜厚１０μｍ）ｏ
Ｆｅ０−Ｆｓ、０３（ｉ状Ｆｅ０−Ｆｅ２０Ｂのみ）
３０ｗｔ％以下実施例１と同様の組成
〔比較例５〕
ｄ性インク鳩組成 （膜厚１０μｍ）ＯＦ ｅ
ｏ −Ｆ１３２０Ｓ （球状Ｆｅ０−Ｆｅ２０Ｂのみ）
６０ｗｔ％以）実施例３とｆＴ’ｆＪ保のｍ成
〔比較例４〕
磁性インク鳩組成 （膜厚１０μｍｊｏ ＦｅＯ
ＦＪＯｓ （針状Ｆｅ０−Ｆｅ、Ｏ，のみ）６０ｗｔ％
以下の組成は笑り例５と同様
笑ゐ例１．２においては、磁性インクｍ或は同じであジ
、全マグネタイト中の球状マグネタイトおよび針状マグ
ネタづトの割合ｋｉ化させたものであシ、比較例１．２
においては、同組成における、マグネタイトの形状を統
一し、実施例１．２と比較している。１ｆｃ実施例５．
４にふ・いては、実施例に比較し、全組成にしめるマグ
ネタイト言有量全増大させ、その中で球状マグネタイト
と針状マグネタイトの全マグネタイトに占める割曾金変
化ざぜたものである。比較例６．４においてに、同組成
にふ・けるマグネタイトの形状を統一し、笑り例３．４
と比較している。[Example 1] Increased composition of sensitive ink (film thickness 10 μm) OFe0-
Fe, O, 30 wt%
0 Microcryftalline Wax (158°F) 3
4wt%O carnauba wax 24
wt%O ethylene/vinegar vinyl Kyokyokai resin 8w
t% (VA-19%, MI-400) Dye 59 wt% Dispersant α1 wt% [Example 2
] Magnetic ink shield composition (film thickness 10 μm) o Fe0
-Fe, 03 3 Q wt% or less composition is the same as Example 1 [Example 5] Magnetic ink layer composition (film thickness 10 μm) o Fe
0-Fe, 0. 60wt
% Paraffin Wax (157°F) 20w
t% carnauba wax 10wt
% ethylene/vinyl acetate resin 6 wt% (
VA-19%, MI-400) Dye M9 wt% Dispersant 11 wt% [Example 4
] Magnetic ink layer composition (film thickness 10 μm) OFe0-
Fe2O360wt% acicular Fe0-Fe, o, 10 wt% spherical F
e0-F'e, 0. Group H below 50 wt% is the same as Example 6 [Comparative Example 1] Magnetic ink layer composition (@thickness 10 μm) o Fe0
-1'+8203 (spherical Fe0-Fe2O, only)
30vvt% or less Same composition as Example 1 [Comparative Example 2] Mother ink tf! 1 set (film thickness 10μm) o
Fe0-Fs, 03 (i-like Fe0-Fe20B only)
30 wt% or less Same composition as Example 1 [Comparative Example 5] d-type ink composition (film thickness 10 μm) OF e
o -F1320S (spherical Fe0-Fe20B only)
60wt% or more) Example 3 and fT'fJ retention [Comparative Example 4] Magnetic ink composition (film thickness 10μmjo FeO
FJOs (acicular Fe0-Fe, O, only) 60wt%
The following composition is the same as Example 5. In Example 1.2, the magnetic ink is m or the same, but the ratio of spherical magnetite and acicular magnetite to the total magnetite is changed to ki. Comparative Example 1.2
In this example, the shape of magnetite with the same composition is unified and compared with Example 1.2. 1fc Example 5.
In comparison with Example 4, the total amount of magnetite in the total composition is increased, and the proportion of spherical magnetite and acicular magnetite in the total magnetite is varied. In Comparative Example 6.4, the shape of magnetite having the same composition was unified, and Comparative Example 3.4
It is compared with.
以上の例で用いたマグネタイトは球状のものが直径０．
５μｍ針状のものが長釉１μｍ、短軸α１μｍである。The magnetite used in the above example was spherical with a diameter of 0.
The 5 μm needle-like one has a long glaze of 1 μm and a short axis α of 1 μm.
転写条件として電磁石は、ｎ丁＝１ｃ１００のもの１１
い、分解能２４０ＤＰＩのサーマルヘッドにて印加エネ
ルギー０．４ｍＪ／ｄｏｔで印字した。As a transfer condition, the electromagnet is n digits = 1c100 11
Printing was performed using a thermal head with a resolution of 240 DPI at an applied energy of 0.4 mJ/dot.
被転写紙には、ベック平滑度６０秒、１０秒、５秒のラ
フベーパー全使用した。Rough vapor with Bekk smoothness of 60 seconds, 10 seconds, and 5 seconds was used as the transfer paper.
印字サンプル全転写率及びドツト再現性で計価し、結果
上表１に示す。The printed samples were evaluated based on the total transfer rate and dot reproducibility, and the results are shown in Table 1 above.
表１に示す如く、球状マグネタイトと針状マグネタイト
に用いた本発明の磁性インク媒体は、平滑度３０秒、１
０秒、３秒のいずれのラフベーパーにおいても優れた転
写率及びドツト再現性を災玩し他めで高品位な印字がで
き念。特に平滑度３秒の紙において１０秒、３０秒の紙
と１つたく同等な高品質印字ができた。As shown in Table 1, the magnetic ink medium of the present invention used for spherical magnetite and acicular magnetite has a smoothness of 30 seconds and a smoothness of 1
Excellent transfer rate and dot reproducibility are achieved with both 0 second and 3 second rough vapor, and high quality printing is possible. In particular, on paper with a smoothness of 3 seconds, high-quality printing equivalent to that on paper with a smoothness of 10 seconds or 30 seconds could be achieved.
また、ドツト再現性においてすべて１００％であったこ
とはＡ Ｐ Ａ （ＡＬＬ ＰＯＩＮＴ ＡＤＤＲ
ｇＳＳ）の優れ次インク媒体であると百え工つ。それに
比較し、比較例１〜４に、球状マグネタイトの磁化モー
メントが小さいことや針状マグネタイトの粘匿が高いな
どの欠点があられれて、転写率およびドツト再現状につ
いてはいい値が出ていない。Also, the dot reproducibility was 100% in all cases.
gSS) is one of the best ink media. In comparison, Comparative Examples 1 to 4 have drawbacks such as the small magnetization moment of spherical magnetite and high viscosity of acicular magnetite, so good values are not obtained for transfer rate and dot reproduction. .
以上、発熱手段はサーマルヘッドにて実験を行なったが
、こｆＬに限定これるものではｌく通１°ヘッド等にお
いてもｌ”ｌ Ｖ ｎ効果が得られる。また、インク媒
体と被転写紙が接触している方式においても効果がある
など、利用方法に幅広い。As mentioned above, the experiment was conducted using a thermal head as the heating means, but it is limited to fL, and the l"l V n effect can be obtained even with a 1° through head etc. It can be used in a wide range of ways, such as being effective even in methods where two people are in contact with each other.
〔発明の効果〕
以上に述べたように、本発明に工れば、磁性インク層の
マグネタイト中に球状マグネタイトおよび針状マグネタ
イトを含有せしめることにエフ、磁気モーメントの増７
ＩＩ］および粘性の低下−〇；芙境できる。これにより
支持体との剥離性が向上し優れた転写効率全英税でき、
表面平滑性の悪い被転写紙、またインクとの親和性のあ
１り工くないフィルムへも非常に高品位な団壬が可能に
なるという効果を有する。また本発明の効果に接触タイ
プおよび非接触タイプどちらの場合においても効果があ
る。′！Ｆた、剥離性が優れていることから駆動系の引
張ジ荷重の低下、及び印字速度のＵＰが可能になるとい
う効果もある。[Effects of the Invention] As described above, if the present invention is implemented, the inclusion of spherical magnetite and acicular magnetite in the magnetite of the magnetic ink layer will result in an increase in the magnetic moment.
II] and decrease in viscosity - ○; This improves the peelability from the support and provides excellent transfer efficiency.
It has the effect of making it possible to print very high-quality sheets even on transfer paper with poor surface smoothness and on films that do not have an affinity for ink. Further, the effects of the present invention are effective in both contact type and non-contact type. ′! Furthermore, since it has excellent releasability, it has the effect of reducing the tensile load on the drive system and increasing printing speed.
第１図は本発明の磁性インク媒体の訳明図、１第２内は
本発明の磁性インク媒体全非接触型印字方法により転写
している原理図。
第６図は一般の熱転写方式におけるインク媒体の引き剥
がし時のインクに作用する各１力を示す図。
以 上
出願人 セイコーエズンン株式会社
第２図FIG. 1 is an explanation diagram of the magnetic ink medium of the present invention, and the figures inside 1 and 2 are diagrams of the principle of transfer using the all non-contact printing method of the magnetic ink medium of the present invention. FIG. 6 is a diagram showing each force acting on ink when an ink medium is peeled off in a general thermal transfer method. Applicant: Seiko Ezunen Co., Ltd. Figure 2
Claims (1)
塑性磁気インク層よりなる磁気インク媒体において、磁
気インク中の針状および球状マグネタイトが下記の割合
で含有されることを特徴とする磁気インク媒体。 磁気インク中における球状マグネタイト及び針状マグネ
タイト総含有量が５〜７０ｗｔ％であり、針状マグネタ
イトの球状マグネタイトに対する比は、１：１０〜５：
１である。[Scope of Claims] A magnetic ink medium comprising at least a support layer and a thermoplastic magnetic ink layer in which fine magnetite particles are dispersed, characterized in that the magnetic ink contains acicular and spherical magnetite in the following proportions: ink medium. The total content of spherical magnetite and acicular magnetite in the magnetic ink is 5 to 70 wt%, and the ratio of acicular magnetite to spherical magnetite is 1:10 to 5:
It is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157344A JPS6313781A (en) | 1986-07-04 | 1986-07-04 | Magnetic ink medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157344A JPS6313781A (en) | 1986-07-04 | 1986-07-04 | Magnetic ink medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6313781A true JPS6313781A (en) | 1988-01-21 |
Family
ID=15647631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157344A Pending JPS6313781A (en) | 1986-07-04 | 1986-07-04 | Magnetic ink medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6313781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0211672A (en) * | 1988-06-30 | 1990-01-16 | Taiho Ind Co Ltd | Ink medium for printer |
| CN105034621A (en) * | 2015-09-15 | 2015-11-11 | 河南卓立膜材料股份有限公司 | Magnetic anti-counterfeiting thermal transfer ribbon |
-
1986
- 1986-07-04 JP JP61157344A patent/JPS6313781A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0211672A (en) * | 1988-06-30 | 1990-01-16 | Taiho Ind Co Ltd | Ink medium for printer |
| CN105034621A (en) * | 2015-09-15 | 2015-11-11 | 河南卓立膜材料股份有限公司 | Magnetic anti-counterfeiting thermal transfer ribbon |
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