JPH0486281A - Formation of magnetic film - Google Patents
Formation of magnetic filmInfo
- Publication number
- JPH0486281A JPH0486281A JP20315890A JP20315890A JPH0486281A JP H0486281 A JPH0486281 A JP H0486281A JP 20315890 A JP20315890 A JP 20315890A JP 20315890 A JP20315890 A JP 20315890A JP H0486281 A JPH0486281 A JP H0486281A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- gravure printing
- pts
- plate
- resin
- 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
- 230000015572 biosynthetic process Effects 0.000 title abstract description 3
- 238000007646 gravure printing Methods 0.000 claims abstract description 57
- 239000011347 resin Substances 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 11
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- 229920000728 polyester Polymers 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000006229 carbon black Substances 0.000 abstract description 2
- 229920006026 co-polymeric resin Polymers 0.000 abstract description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 244000068988 Glycine max Species 0.000 abstract 1
- 235000010469 Glycine max Nutrition 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 229940067606 lecithin Drugs 0.000 abstract 1
- 235000010445 lecithin Nutrition 0.000 abstract 1
- 239000000787 lecithin Substances 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 36
- 239000002184 metal Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 238000007639 printing Methods 0.000 description 14
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000010894 electron beam technology Methods 0.000 description 5
- 239000006247 magnetic powder Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- SQZFBUCCQBMMSK-UHFFFAOYSA-N n,n-diethyl-2-(4-methoxyphenoxy)ethanamine Chemical compound CCN(CC)CCOC1=CC=C(OC)C=C1 SQZFBUCCQBMMSK-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229940083466 soybean lecithin Drugs 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- UHUUYVZLXJHWDV-UHFFFAOYSA-N trimethyl(methylsilyloxy)silane Chemical compound C[SiH2]O[Si](C)(C)C UHUUYVZLXJHWDV-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Printing Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、 プリペイドカード、クレジットカード、磁
気切符等の磁性皮膜の形成方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method of forming a magnetic film for prepaid cards, credit cards, magnetic tickets, etc.
〈従来技術〉
プリペイドカード、クレジットカード、磁気切符等の、
磁気カード類の磁性皮膜の形成方法としては、従来の３
本ロールコータ−法などに代わって、図形状の塗工が可
能な金属グラビア印刷版を用いて、磁性インキをグラビ
ア印刷する方法が一般的である。すなわち、スクリーン
線数２５〜１００／インチ、版深１００〜３００μｍの
金属グラビア印刷版を用いて、固型分比率４０〜６０重
量％の磁性インキをグラビア印刷して、乾燥膜厚１５〜
２０μｍの磁性皮膜を形成するものである。<Prior art> Prepaid cards, credit cards, magnetic tickets, etc.
There are three conventional methods for forming magnetic films on magnetic cards.
Instead of this roll coater method, it is common to perform gravure printing with magnetic ink using a metal gravure printing plate that can be coated in graphic shapes. That is, using a metal gravure printing plate with a screen line count of 25 to 100/inch and a plate depth of 100 to 300 μm, a magnetic ink with a solid content ratio of 40 to 60% by weight is gravure printed to obtain a dry film thickness of 15 to 100 μm.
A magnetic film of 20 μm is formed.
〈発明が解決しようとする課題〉
近年は、前述のような磁気カード類が広く普及しており
、磁気カード類に必須の磁性皮膜についても、美麗性や
守秘、改窟、偽造防止などのために、従来の磁性皮膜を
形成したポリエステルテープを貼付けるものから、各々
の磁気カード類の必要部分のみに、直接図型状に磁性皮
膜を形成する傾向が高まりつつあり、図形状の塗工が可
能なグラビア印刷版を用いて、多品種、小ロフトに適し
た磁性皮膜の形成方法が要請されている。<Problem to be solved by the invention> In recent years, magnetic cards such as those mentioned above have become widespread, and the magnetic film essential for magnetic cards has also been improved for reasons such as beauty, confidentiality, tampering, and prevention of counterfeiting. In contrast to the conventional method of pasting polyester tape with a magnetic film on it, there is an increasing tendency to form a magnetic film directly in the shape of a graphic only on the necessary parts of each magnetic card. There is a need for a method of forming a magnetic film suitable for a wide variety of products and small lofts using a capable gravure printing plate.
一方、前述の金属グラビア印刷版を用いて磁性インキを
グラビア印刷する方法については、版硬度など耐刷力が
優れており、前記の磁性皮膜を形成したポリエステルテ
ープなどの、大ロットに適した磁性皮膜の形成方法であ
って、金属グラビア印刷版の作製に工数１時間、費用が
かかるなど、多品種、小ロットに適した磁性皮膜の形成
方法ではなかった。On the other hand, the method of gravure printing with magnetic ink using the metal gravure printing plate mentioned above has excellent printing durability such as plate hardness, and is suitable for large lots such as polyester tape with the above-mentioned magnetic film formed. This method of forming a magnetic film was not suitable for a wide variety of products and small lots because it required one hour of man-hours and was expensive to produce a metal gravure printing plate.
〈課題を解決するだめの手段〉
以−トのような、多品種、小ロフトに適した 磁性皮膜
の形成方法の要請に鑑み、本発明者らは、板温が比較的
浅い樹脂グラビア印刷版が、磁性インキの転移率が高い
ことに着目して、板温が１００μｍ以下の樹脂グラビア
印刷版を用いて、磁性インキをグラビア印刷することに
よって、金属グラビア印刷版のように、作製工数５時間
、費用をかけることなく、乾燥膜厚１５〜２０μｍの磁
性的に均一な磁性皮膜を形成するものである。<Means for Solving the Problem> In view of the need for a method of forming a magnetic film suitable for a wide variety of products and small lofts, the present inventors developed a resin gravure printing plate with a relatively low board temperature. However, focusing on the high transfer rate of magnetic ink, by gravure printing magnetic ink using a resin gravure printing plate with a plate temperature of 100 μm or less, the production time was 5 hours, unlike metal gravure printing plates. , a magnetically uniform magnetic film with a dry film thickness of 15 to 20 μm can be formed without incurring any expense.
本発明に用いる樹脂グラビア印刷版としては、（１）感
光性樹脂より成る版材を フィルム露光、現像して印刷
版を作製するもの、（２）硬質樹脂より成る版材に電子
彫刻機でセル（グラビア印刷版の凹部以下間し）を形成
して 印刷版を作製するもの、（３）電子線又は紫外線
硬化樹脂より成る版材に 同様に電子彫刻機でセルを形
成して印刷版を作製するものなどが、各種開発、提供さ
れており、適宜選択して用いることが出来る。なかでも
、市販の（１）の、感光性樹脂グラビア版材であるナイ
ログラブ（商品名、西ドイツ、 ＢＡＳＦ社製）が、専
用露光機によるフィルム露光と、メタノ・−ルによる現
像ともに簡便であり、磁性インキの転移率やセルの形状
も良好で、多品種、小ロットの磁性皮膜の形成には好ま
しい。The resin gravure printing plates used in the present invention include (1) those made by exposing and developing a plate material made of photosensitive resin to film, and (2) printing plates made of a plate material made of hard resin using an electronic engraving machine. (3) A printing plate is produced by forming cells on a plate material made of electron beam or ultraviolet curing resin using an electronic engraving machine in the same way. A variety of tools have been developed and provided, and can be selected and used as appropriate. Among them, the commercially available (1) photosensitive resin gravure plate material Nylograv (trade name, manufactured by BASF, West Germany) is easy to expose the film with a dedicated exposure machine and develop with methanol. The transfer rate of the magnetic ink and the shape of the cells are also good, making it suitable for forming magnetic films of a wide variety of products and in small lots.
なお、（２） 、 （３）の樹脂グラビア印刷版の作製
に使用する電子彫刻機については、ヘリオクリジョグラ
ブ（商品名、西ドイツ、ペル社製）が代表的であり、セ
ルの形状がＶ型であるために、金属グラビア印刷版の作
製に使用しても同様であるが、−船釣にインキの転移率
が良好である。特に、磁性インキの転移率（インキ転移
量［固型分］／セル内インキ保有量［含溶剤］×セル面
積率、以下同じ）に大きな影響を与えるセル面積率（標
準はスクリーン線幅：セル幅が１ ： ３ 、５６．２
％）を、自由に設定（スクリーン線幅：セル幅が１：９
，８１．０％まで）できる優れた特長を持っている。As for the electronic engraving machine used to produce the resin gravure printing plates in (2) and (3), Heliocrijograb (trade name, manufactured by Pell, West Germany) is a typical example, and the cell shape is V. Since it is a mold, it can be used in the production of metal gravure printing plates as well, but the ink transfer rate is good for boat fishing. In particular, the cell area ratio (standard screen line width: cell Width is 1:3, 56.2
%) can be freely set (screen line width: cell width is 1:9).
, up to 81.0%).
本発明に用いる樹脂グラビア印刷版の板温（セルの平均
深さ、以下間し）としては、１００μｍ以下、好ましく
は ９０μｍ程度である。すなわち、板温が１００μｍ
以」：であると、スクリーン線数をＩｉｌ＜（６０線／
インチ以下）せざるを得す、スクリーン線数が ６０線
／インチ以下（ヘリオクリジョグラフの場合はセルの形
状がＶ型であるために １００線／インチ以下）である
と、経験的に形成した磁性皮膜に斑（インキの泳ぎ、ス
クリーン線抜けなど）が発生して、磁気カード類として
の磁性的な均一性が得られない。なお、従来のスクリー
ン線数２５フインチ３版深３００μｍ程度の金属グラビ
ア版を用いた場合には、磁性皮膜の斑が避けられないた
めに、スムーザ−（半乾燥の磁性皮膜を機械的に平滑に
する）の使用が一般的である。The plate temperature (average cell depth, hereinafter referred to as the average cell depth) of the resin gravure printing plate used in the present invention is 100 μm or less, preferably about 90 μm. In other words, when the plate temperature is 100μm
”: Then, the number of screen lines is Iil<(60 lines/
It has been empirically determined that the screen frequency is 60 lines/inch or less (100 lines/inch or less in the case of heliochryograph, because the cell shape is V-shaped). Spots (swimming of ink, missing screen lines, etc.) occur on the magnetic film, making it impossible to obtain magnetic uniformity for magnetic cards. In addition, when using a conventional metal gravure plate with a screen line count of 25 inches, 3 plates, and a depth of about 300 μm, unevenness in the magnetic film is unavoidable, so a smoother (mechanically smoothing the semi-dry magnetic film) is used. ) is commonly used.
本発明に用いる磁性インキの構成としては、用途や目的
に応じて、従来公知の磁性粉や皮膜樹脂印刷溶剤等を、
固型分（磁性粉や皮膜樹脂等）の比率が５０重量％以Ｆ
、好ましくは４０重量％程度に配合、構成するものであ
る。The composition of the magnetic ink used in the present invention may include conventionally known magnetic powder, film resin printing solvent, etc., depending on the use and purpose.
The ratio of solid content (magnetic powder, coating resin, etc.) is 50% by weight or more
, preferably about 40% by weight.
本発明のグラビア印刷方法については、通常の枚葉式１
輪転式などのグラビア印刷機を使用して、３０〜５０ｍ
／分の低速で グラビア印刷して、乾燥膜厚１５〜２０
μｍの磁性皮膜を形成するものである。この場合に、樹
脂グラビア′印刷版は強度（硬度）が不足しているため
に、樹脂グラビア印刷版より硬度の低い、市販の硬質ポ
リ塩化ビニールや超高分子ポリエチレン等の、樹脂ドク
ターを選定するなどの注意が必要である。Regarding the gravure printing method of the present invention, a normal sheet-fed type 1
30 to 50m using a rotogravure printing machine such as a rotary type
Gravure printing is performed at a low speed of 15 to 20 minutes.
It forms a magnetic film with a diameter of μm. In this case, since the resin gravure printing plate lacks strength (hardness), select a resin doctor made of commercially available hard polyvinyl chloride or ultra-high molecular polyethylene, which has lower hardness than the resin gravure printing plate. It is necessary to take precautions such as:
〈作用〉
グラビア印刷における板温とインキの転移率の関係につ
いては、通常の金属グラビア印刷版の場合には、板温に
逆比例してインキの転移率が低下することは周知の事実
である。また、樹脂グラビア印刷版の場合についても、
板温に逆比例してインキの転移率が低下するものの、金
属グラビア印刷版に比較して、樹脂グラビア印刷版の表
面張力の差やセルの形状、平滑性などの理由により、版
深が浅い場合に、磁性インキのような、固型分比率が高
く粘度が高いインキの転移率が高いことを、本発明者ら
は知見している。<Function> Regarding the relationship between plate temperature and ink transfer rate in gravure printing, it is a well-known fact that in the case of ordinary metal gravure printing plates, the ink transfer rate decreases in inverse proportion to plate temperature. . Also, in the case of resin gravure printing plates,
Although the ink transfer rate decreases in inverse proportion to plate temperature, the plate depth is shallow compared to metal gravure printing plates due to differences in surface tension, cell shape, and smoothness of resin gravure printing plates. In some cases, the present inventors have found that inks with a high solid content ratio and high viscosity, such as magnetic inks, have a high transfer rate.
第１図は、磁性インキのグラビア印刷における板温とイ
ンキの転移率の関係についての、本発明者らの知見を示
したグラフ図である。FIG. 1 is a graph showing the inventors' findings regarding the relationship between plate temperature and ink transfer rate in gravure printing using magnetic ink.
すなわち、一般のグラビア印刷（膜厚５〜１０μｍ）よ
り厚塗りの、磁性皮膜（膜厚１５〜２０μｍ）の形成方
法として、従来の金属グラビア印刷版を用いて磁性イン
キをグラビア印刷する方法においては、（１）厚塗りの
磁性皮膜を得るために、板温を深くして、（２）インキ
の転移率が低下するので、更に板温を深くスクリーン線
数を粗くせざるを得す、（３）磁性皮膜に斑が避けられ
ないために、スムーサーを使用して磁性皮膜を形成する
、などとなっている。That is, in a method of gravure printing with magnetic ink using a conventional metal gravure printing plate, as a method of forming a thicker magnetic film (film thickness 15 to 20 μm) than general gravure printing (film thickness 5 to 10 μm), (1) In order to obtain a thick magnetic coating, the plate temperature is increased, (2) Since the ink transfer rate decreases, it is necessary to further increase the plate temperature and coarsen the number of screen lines. 3) Since spots are unavoidable on the magnetic film, a smoother is used to form the magnetic film.
本発明者らは、板温が比較的浅い樹脂グラビア印刷版が
、固型分比率が高く粒度が高い磁性インキの転移率が高
いことに着目して、板温が比較的浅い領域で、耐剛力の
問題が少ない多品種、小ロットの磁性皮膜を、低コスト
で簡便に形成するものである。The present inventors focused on the fact that a resin gravure printing plate with a relatively shallow plate temperature has a high transfer rate of magnetic ink with a high solids content ratio and a large particle size. The purpose of this method is to easily form a wide variety of small-lot magnetic coatings at low cost with few problems in stiffness.
〈実施例１〉
市販の感光性樹脂グラビア版材であるナイログラ７’Ａ
Ｔ−６２（西Ｆ イッ、 ＢＡＳＦ社製）を用イテ、６
０線ノインチ（スクリーン線幅１：セル幅７．セル面積
率７６．６％）のスクリーンパターンを露光、現像して
、平均版深８６μｍの樹脂グラビア印刷版を作製した。<Example 1> Nylogura 7'A, a commercially available photosensitive resin gravure plate material
Use T-62 (West F, made by BASF), 6
A screen pattern of 0 line inch (screen line width 1: cell width 7, cell area ratio 76.6%) was exposed and developed to produce a resin gravure printing plate with an average plate depth of 86 μm.
また、磁性粉ＭＣ−１２７（戸田工業■製）を１００重
量部と、 ウレタン樹脂２３０４ （日本ポリウレタン
エ業■製）を２０重量部と、塩酢ビ共重合樹脂ＶＡＧＨ
（ユニオンカーバイト■製）を２０重量部と、カーボン
ブラック９７５Ｂ （コロンビアカーボン■製）を７重
量部と、大豆レシチン（分散剤）を５重量部と、トルエ
ンを１００重量部と、メチルエチルケトンを１００重量
部とを配合して、通常のボールミル装置で、常温で約６
時間攪拌して、固型分比率４３．２重量％の磁性インキ
を作製した。In addition, 100 parts by weight of magnetic powder MC-127 (manufactured by Toda Kogyo ■), 20 parts by weight of urethane resin 2304 (manufactured by Japan Polyurethane Industry ■), and salt-vinyl acetate copolymer resin VAGH
(manufactured by Union Carbide ■), 7 parts by weight of carbon black 975B (manufactured by Columbia Carbon ■), 5 parts by weight of soybean lecithin (dispersant), 100 parts by weight of toluene, and 100 parts by weight of methyl ethyl ketone. 6 parts by weight at room temperature using a normal ball mill.
The mixture was stirred for a period of time to produce a magnetic ink having a solid content ratio of 43.2% by weight.
この樹脂グラビア印刷版と磁性インキを用いて、厚さ１
８８μｍのポリエステルシートに、通常の枚葉式グラビ
ア印刷機で ３０ｍ１分の低速で印刷をして、平均乾燥
膜厚１５μｍの、斑の少ない磁性的にも均一な磁性皮膜
を形成した。この時の磁性インキの転移率は３１．２重
量％であった。Using this resin gravure printing plate and magnetic ink,
Printing was carried out on an 88 μm polyester sheet using a conventional sheet-fed gravure printing machine at a low speed of 30 ml to form a magnetically uniform magnetic film with an average dry film thickness of 15 μm with few spots. The transfer rate of the magnetic ink at this time was 31.2% by weight.
〈比較例１〉
実施例１と同一のナイログラブＡＴ−６２を用いて、実
施例１と同一の６０線／インチのスクリーンパターンを
露光、現像して、平均版深１０４μｍの樹脂グラビア印
刷版を作製した。<Comparative Example 1> Using the same nylon glove AT-62 as in Example 1, the same 60 lines/inch screen pattern as in Example 1 was exposed and developed to produce a resin gravure printing plate with an average plate depth of 104 μm. did.
この樹脂グラビア印刷版と実施例１と同一の磁性インキ
を用いて、厚さ１８８μｍのポリエステルシートに、実
施例１と同一のグラビア印刷機で３０ｍ／分の低速で印
刷をして、平均乾燥膜厚１７μｍの磁性皮膜を形成した
。この時の磁性インキの転移率は２９．３重量％に低下
しており、磁性皮膜にややインキの泳ぎ（乾燥前のイン
キが流動して濃淡になること）が認められた。Using this resin gravure printing plate and the same magnetic ink as in Example 1, printing was carried out on a 188 μm thick polyester sheet with the same gravure printing machine as in Example 1 at a low speed of 30 m/min. A magnetic film with a thickness of 17 μm was formed. At this time, the transfer rate of the magnetic ink had decreased to 29.3% by weight, and some ink swimming (ink before drying flows and becomes light and dark) in the magnetic film was observed.
〈実施例２〉
電子線硬化性 ２官能ウレタンアクリレート（アロニッ
クスＭ−１３００．東亜合成■製）を３０重量部と、電
子線硬化性 ３官能アクリレート（ＭＡＹＡＲＡＤ−Ｔ
ＭＰＴＡ２日本化薬■製）を６０重量部と、１．３−ビ
ス（３−メタクリロキシプロピル）−１，１，３，３−
テトラメチルジシロキサンを１０重量部とを配合して、
良く攪拌した塗液を、厚さ１８８１Ｉｍのポリエステル
シートに、ナイフコート装置で塗布した後に、２００ｋ
ｅＶの電子線を吸収線量６Ｍｒａｄになるように照射し
硬化させて、層厚１２０μｍの電子線硬化樹脂グラビア
版材を作製した。<Example 2> 30 parts by weight of electron beam curable bifunctional urethane acrylate (Aronix M-1300, manufactured by Toagosei ■) and electron beam curable trifunctional acrylate (MAYARAD-T) were added.
60 parts by weight of MPTA2 (manufactured by Nippon Kayaku ■) and 1,3-bis(3-methacryloxypropyl)-1,1,3,3-
By blending 10 parts by weight of tetramethyldisiloxane,
After applying the well-stirred coating liquid to a polyester sheet with a thickness of 1881 Im using a knife coater,
An electron beam cured resin gravure plate material having a layer thickness of 120 μm was prepared by irradiating and curing the plate with an eV electron beam at an absorbed dose of 6 Mrad.
次に、この樹脂グラビア版材を用いて、電子彫刻機へリ
オクリショグラフに−２００（西ドイツ、ペル社製）に
て全ベタ彫刻（１００線／インチ、セル面積率［１ニア
］７６．６％）を行って、平均版深９０μｍの樹脂グラ
ビア印刷版を作製した。Next, using this resin gravure plate material, all solid engraving (100 lines/inch, cell area ratio [1 near] 76. 6%) to produce a resin gravure printing plate with an average plate depth of 90 μm.
この樹脂グラビア印刷版と実施例１と同一の磁性インキ
を用いて、２６０ｇ／ｍ２の両面カード紙に、実施例１
と同一のグラビア印刷機で ５０ｍ／分の低速で印刷を
して、平均乾燥膜厚１７μｍの、斑の少ない磁性的にも
均一な磁性皮膜を形成した。Using this resin gravure printing plate and the same magnetic ink as in Example 1, Example 1 was printed on 260 g/m2 double-sided card paper.
Printing was performed using the same gravure printing machine at a low speed of 50 m/min to form a magnetically uniform magnetic film with few spots and an average dry film thickness of 17 μm.
この時の磁性インキの転移率は３３．８重量％であった
。The transfer rate of the magnetic ink at this time was 33.8% by weight.
〈実施例３〉
硬質ポリ塩化ビニルコンパウンド１０３ＥＰ（白木ゼオ
ン■製）を用いて、直径２００ｍｍ、長さ１０００ｍｍ
のポリエチレンシリンダー上に、通常の加熱押出し成形
法により被覆加工を行い、表面を鏡面研磨して、層厚］
、Ｏｍｍ（直径２２０ｍｍ）の硬質塩化ビニル樹脂グラ
ビア版材を作製した。<Example 3> Using hard polyvinyl chloride compound 103EP (manufactured by Shiraki Zeon ■), a diameter of 200 mm and a length of 1000 mm
Coating is performed on a polyethylene cylinder using the usual heating extrusion molding method, and the surface is mirror-polished to achieve a layer thickness]
, Omm (diameter 220 mm) hard vinyl chloride resin gravure plate material was produced.
次に、この樹脂グラビア版材を用いて、実施例２と同一
の電子彫刻機へリオクリショグラフに−２００にて、全
ベタ彫刻（１００線／インチ、セル面積率７６．６％）
を行って、平均版深９０μｍの樹脂グラビア印刷版を作
製した。Next, using this resin gravure plate material, all solid engraving (100 lines/inch, cell area ratio 76.6%) was carried out on the same electronic engraving machine as in Example 2 using the Liochrishograph at -200.
A resin gravure printing plate with an average plate depth of 90 μm was prepared.
この樹脂グラビア印刷版と実施例１と同一の磁性インキ
を用いて、厚さ１８８μｍのポリエステルフィルムに、
通常の輪転式グラビア印刷機で５０ｍ／分の低速で 印
刷をして、平均乾燥膜厚１６μｍの、斑の少ない磁性的
にも均一な磁性皮膜を形成した。この時の磁性インキの
転移率は３１．８重量％であった。Using this resin gravure printing plate and the same magnetic ink as in Example 1, a polyester film with a thickness of 188 μm was printed.
Printing was performed at a low speed of 50 m/min using a conventional rotogravure printing machine to form a magnetically uniform magnetic film with an average dry film thickness of 16 μm with few spots. The transfer rate of the magnetic ink at this time was 31.8% by weight.
〈比較例２〉
表面に銅層を有する 直径２２０ｍｍ、長さ１０１００
Ｑの、通常の金属グラビア版材を用いて、実施例２と同
一の電子彫刻機へリオクリショグラフに２００にて、全
ベタ彫刻（１００線／インｆ、セル面積率７６．６％）
を行って、平均版深９０μｍの金属グラビア印刷版を作
製した。<Comparative Example 2> Having a copper layer on the surface, diameter 220 mm, length 10100 mm
All solid engraving (100 lines/in f, cell area ratio 76.6%) was carried out using the ordinary metal gravure plate material of Q, using the same electronic engraving machine as in Example 2, at 200 degrees Celsius.
A metal gravure printing plate having an average plate depth of 90 μm was prepared.
この金属グラビア印刷版と実施例１と同一の磁性インキ
を用いて、厚さ１８８μｍのポリエステルフィルムに、
実施例３と同一のグラビア印刷機で ５０ｍ／分の低速
で印刷をして、平均乾燥膜厚９μｍの、斑の少ない磁性
皮膜を形成した。この時の磁性インキの転移率は１７．
９重量％に低下しており、磁性皮膜の膜厚が不足であっ
た。Using this metal gravure printing plate and the same magnetic ink as in Example 1, a polyester film with a thickness of 188 μm was printed.
Printing was performed using the same gravure printing machine as in Example 3 at a low speed of 50 m/min to form a magnetic film with an average dry film thickness of 9 μm and less unevenness. The transfer rate of the magnetic ink at this time was 17.
It decreased to 9% by weight, indicating that the thickness of the magnetic film was insufficient.
〈発明の効果〉
以上実施例に示すとおり、板温が９０μｍ程度の樹脂グ
ラビア印刷版を用いて、固型分比率が４０重量％程度の
磁性インキをグラビア印刷することによって、金属グラ
ビア印刷版のように作製下数１時間、費用をかけること
なく、乾燥膜厚１５μｍ以上の、磁性的に均一な磁性皮
膜を形成することが出来る。 この結果、プリペイドカ
ード、クレジットカー１色磁気切符などの、耐刷力の問
題が少ない多品種、小ロットの磁性皮膜を、各々の磁気
カード頻の必要部分のみに、直接固型状に低コストで簡
便に形成することが可能であり、美麗性や守秘、改窟、
偽造防止などの要請に応え得るものである。<Effects of the Invention> As shown in the examples above, by gravure printing a magnetic ink with a solid content ratio of about 40% by weight using a resin gravure printing plate with a plate temperature of about 90 μm, a metal gravure printing plate can be produced. In this way, a magnetically uniform magnetic film with a dry film thickness of 15 μm or more can be formed within several hours and without incurring any expense. As a result, it is possible to directly solidify magnetic coatings for a wide variety of products and small lots, such as prepaid cards and credit card single-color magnetic tickets, which have fewer printing durability problems, directly onto the necessary parts of each magnetic card at a low cost. It can be easily formed with
This can meet demands such as counterfeit prevention.
なお、本発明においては、磁性皮膜形成以外の一般のグ
ラビア印刷と、板温などの差が少ないために、通常のグ
ラビア印刷機を通常の熟練度で用いることによって、ス
ムーサー等の特別な設備や技術を必要としないで、斑の
少ない磁性的にも均一な磁性皮膜を形成することが出来
る。In addition, in the present invention, since there is little difference in plate temperature etc. from general gravure printing other than magnetic film formation, special equipment such as a smoother etc. can be used by using a normal gravure printing machine with normal skill. A magnetically uniform magnetic film with few spots can be formed without requiring any special techniques.
また、本発明においては、樹脂グラビア印刷版の板温や
磁性インキの固型分比率に無理がないので、磁性皮膜の
磁性的な品質や均一性などの諸要求に対して、樹脂版材
１板温、スクリーン線数や線幅、磁性粉、皮膜樹脂、添
加物、印刷溶剤又は印刷条件などの選択に自由度が大き
く、各種の対応が可能である。In addition, in the present invention, since the plate temperature of the resin gravure printing plate and the solid content ratio of the magnetic ink are reasonable, the resin plate material can meet various requirements such as the magnetic quality and uniformity of the magnetic film. There is a great deal of freedom in selecting plate temperature, screen line number and line width, magnetic powder, coating resin, additives, printing solvent, printing conditions, etc., and various adaptations are possible.
第１図は、磁性インキの、グラビア印刷における板温と
インキの転移率の関係を示したグラフ図である。
１・・・樹脂グラビア印刷版
２・・・金属グラビア印刷版
特 許 出 願 人
凸版印刷株式会社
代表者 鈴木和夫FIG. 1 is a graph showing the relationship between plate temperature and ink transfer rate in gravure printing using magnetic ink. 1... Resin gravure printing plate 2... Metal gravure printing plate patent application Person Toppan Printing Co., Ltd. Representative Kazuo Suzuki
Claims (1)
ア印刷することを特徴とする磁性皮膜形成方法 ２）前記樹脂グラビア印刷版の版深が、１００μｍ以下
であることを特徴とする、特許請求の範囲第１項に記載
の磁性皮膜形成方法。[Scope of Claims] 1) A magnetic film forming method characterized in that magnetic ink is gravure printed using a resin gravure printing plate.2) A plate depth of the resin gravure printing plate is 100 μm or less. A method for forming a magnetic film according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20315890A JPH0486281A (en) | 1990-07-30 | 1990-07-30 | Formation of magnetic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20315890A JPH0486281A (en) | 1990-07-30 | 1990-07-30 | Formation of magnetic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486281A true JPH0486281A (en) | 1992-03-18 |
Family
ID=16469398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20315890A Pending JPH0486281A (en) | 1990-07-30 | 1990-07-30 | Formation of magnetic film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486281A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005515291A (en) * | 2002-01-24 | 2005-05-26 | プラストラク ソシエタ ア レスポンサビリタ リミタータ | Paint for plastic materials in particular and painting method using the paint |
| US7691468B2 (en) | 2003-07-03 | 2010-04-06 | Sicpa Holding S.A. | Method and means for producing a magnetically induced design in a coating containing magnetic particles |
-
1990
- 1990-07-30 JP JP20315890A patent/JPH0486281A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005515291A (en) * | 2002-01-24 | 2005-05-26 | プラストラク ソシエタ ア レスポンサビリタ リミタータ | Paint for plastic materials in particular and painting method using the paint |
| US7691468B2 (en) | 2003-07-03 | 2010-04-06 | Sicpa Holding S.A. | Method and means for producing a magnetically induced design in a coating containing magnetic particles |
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