JPH0342279A - Optical card - Google Patents
Optical cardInfo
- Publication number
- JPH0342279A JPH0342279A JP1177417A JP17741789A JPH0342279A JP H0342279 A JPH0342279 A JP H0342279A JP 1177417 A JP1177417 A JP 1177417A JP 17741789 A JP17741789 A JP 17741789A JP H0342279 A JPH0342279 A JP H0342279A
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- organic phosphate
- optical recording
- phosphate anion
- anion
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- -1 phosphate anion Chemical class 0.000 claims abstract description 29
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical class [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 12
- 239000010452 phosphate Substances 0.000 claims abstract description 12
- 150000001768 cations Chemical class 0.000 claims abstract description 7
- 125000001118 alkylidene group Chemical group 0.000 claims abstract description 6
- 150000001450 anions Chemical class 0.000 claims abstract description 5
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 125000004434 sulfur atom Chemical group 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 30
- 230000001681 protective effect Effects 0.000 abstract description 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 abstract description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 2
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 abstract 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 abstract 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 22
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000002904 solvent Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 241001061127 Thione Species 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000000298 carbocyanine Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 1
- 229920003319 Araldite® Polymers 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229930192627 Naphthoquinone Natural products 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002791 naphthoquinones Chemical class 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- QWYZFXLSWMXLDM-UHFFFAOYSA-M pinacyanol iodide Chemical compound [I-].C1=CC2=CC=CC=C2N(CC)C1=CC=CC1=CC=C(C=CC=C2)C2=[N+]1CC QWYZFXLSWMXLDM-UHFFFAOYSA-M 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- ZHROMWXOTYBIMF-UHFFFAOYSA-M sodium;1,3,7,9-tetratert-butyl-11-oxido-5h-benzo[d][1,3,2]benzodioxaphosphocine 11-oxide Chemical compound [Na+].C1C2=CC(C(C)(C)C)=CC(C(C)(C)C)=C2OP([O-])(=O)OC2=C1C=C(C(C)(C)C)C=C2C(C)(C)C ZHROMWXOTYBIMF-UHFFFAOYSA-M 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000005469 synchrotron radiation Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000001016 thiazine dye Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229940075420 xanthine Drugs 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は光学的に情報の書き込み、読み取りが可能な光
カードに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an optical card on which information can be written and read optically.
〈従来技術〉
現在、広く利用されている磁気カードに比べ、より記録
容量の大きなカード型記録媒体として、光カードが提案
され、小型、携帯性が良いといった構造的な特徴ととも
に、光学的に書き込みまたは読み出しをするため、カー
ドの摩耗劣化が少なく、高密度記録が可能であり、なか
でも追加書き込み型光カード、いわゆるダイレクト・リ
ード・アフタ・ライト（ＤＲＡＷ）型光カードはレーザ
光等の放射光を熱源とした情報の熱的記録と、記録後の
現像処理を必要としないという特徴を有するため、利用
範囲が広く、開発が多方面で進められている。<Prior art> Optical cards have been proposed as a card-type recording medium with a larger storage capacity than the currently widely used magnetic cards. Since the card is read or read, there is little wear and tear on the card, and high-density recording is possible.In particular, write-once optical cards, so-called direct read-after-write (DRAW) type optical cards, use synchrotron radiation such as laser light. Because it has the characteristics of thermally recording information using a heat source and does not require development processing after recording, it has a wide range of applications and is being developed in many fields.
このＤＲＡＷ型光カードへの情報の書き込みは、カード
基体上に形成された記録層表面に集束したレーザ光等の
放射光を照射し、吸収したレーザエネルギーによる記録
層の物理的、化学的変化、いわゆるし−ト・モード記録
で光学的に検出可能なビットを形成することによって行
い、情報の読み出しは、形成されたピットを読み出し光
の照射により検出することができる。Writing information to this DRAW type optical card involves irradiating the surface of the recording layer formed on the card base with radiation light such as a focused laser beam, and causing physical and chemical changes in the recording layer due to the absorbed laser energy. This is done by forming optically detectable bits in so-called slate mode recording, and information can be read out by irradiating the formed pits with readout light.
このＤＲＡＷ型光カードの記録層としてはＴｅ、Ｂｉ、
ＡＩ、 Ｓｎ等の低融点金属、またはその合金、酸化
物、炭化物等の無機材料系がこれまで主として用いられ
ていた。しかしながら、記録層の成膜手段に簡易な塗工
法が用いることができず、工程が複雑なスパッタリング
や真空蒸着法を用いる必要があった。このため、レーザ
光等によりピントを形成することができる染料が提案さ
れ、例えば、アントラキノン系、ナフトキノン系、トリ
フェニルメタン系、カルボシアニン系、メロシアニン系
、キサンチン系、アブ系、アジン系、チアジン系、オキ
サジン系、フタロシアニン系、スクアリリウム系などの
有機染料系が挙げられる。なかでもカルボシアニン系に
代表されるポリメチン鎖を含むシアニン系染料は大きな
分子吸光係数を持ち、成膜時に高い反射率を有するため
、記録材料として用いられている。The recording layer of this DRAW type optical card is Te, Bi,
Until now, low melting point metals such as AI and Sn, or inorganic materials such as their alloys, oxides, and carbides have been mainly used. However, a simple coating method cannot be used to form the recording layer, and it is necessary to use sputtering or vacuum evaporation, which involve complicated steps. For this reason, dyes that can form a focus using laser light have been proposed, such as anthraquinone, naphthoquinone, triphenylmethane, carbocyanine, merocyanine, xanthine, ab, azine, and thiazine dyes. , oxazine-based, phthalocyanine-based, squarylium-based, and other organic dyes. Among them, cyanine dyes containing polymethine chains, typified by carbocyanine dyes, have large molecular extinction coefficients and high reflectance during film formation, and are therefore used as recording materials.
シアニン染料は、発色能を有するカチオン成分と、その
カウンターイオンであるアニオン成分とからなる塩であ
る。この発色部分であるカチオン成分（こついては多く
の構造が検討され、最大吸収波長、反射等、透過率など
の分光学的パラメータに関して分子設計がなされた。こ
れに対してアニオン成分については、ハロゲンアニオン
、過塩素酸アニオン、フン化ホウ素アニオンなどの無機
系アニオンや、１）−トルエンスルホンネートアニオン
、アルキルスルホネートアニオンなどの有機スルホネー
トアニオンなど従来より知られているものが用いられて
いた。A cyanine dye is a salt consisting of a cationic component that has color-forming ability and an anionic component that is its counter ion. For the cationic component (which is the coloring part), many structures were studied, and molecular designs were made regarding spectroscopic parameters such as maximum absorption wavelength, reflection, etc., and transmittance.On the other hand, for the anionic component, the halogen anion , perchlorate anions, boron fluoride anions, and organic sulfonate anions such as 1)-toluenesulfonate anions and alkylsulfonate anions.
しかしながら、このアニオン成分は、染料の分光学的性
質に与える影響は少ないものの、溶解性には大きく寄与
するものであり、コーティング方式での記録材料の検討
を行なう上で重要な地位を占めるものである。However, although this anion component has little effect on the spectroscopic properties of the dye, it greatly contributes to the solubility, and therefore plays an important role in the study of coating-based recording materials. be.
光カードとしてのこの記録層の膜厚は、レーザ光に対す
る反射率の点から６０〜８０ｎｍ程度とされ、この膜厚
とするには塗工法（以下コーティングとする）が用いら
れていた。The thickness of this recording layer used as an optical card is set to be about 60 to 80 nm from the viewpoint of reflectance to laser light, and a coating method (hereinafter referred to as coating) has been used to achieve this thickness.
〈発明が解決しようとする課題〉
しかしながら、コーティングによりカード基材上に記録
層を設けるため染料の溶剤への溶解性が問題となる。本
発明に係る光カードはカード基材としてポリカーボネー
ト、ポリメチルメタクリレート等の一般的に耐溶剤性の
ない基材であるため、ジクロロメタン等の溶解性の高い
溶剤を用いることはできない。したがってアルコール類
、セロソルブ類、ケトン類に溶解性の高い染料が求めら
れており、また有機染料系記録材料の欠点として光劣化
が生しやすく、劣化した記録層は反射率の低下等の問題
を生していた。<Problems to be Solved by the Invention> However, since the recording layer is provided on the card base material by coating, the solubility of the dye in the solvent becomes a problem. Since the optical card according to the present invention uses a card base material such as polycarbonate or polymethyl methacrylate that generally has no solvent resistance, it is not possible to use a highly soluble solvent such as dichloromethane. Therefore, there is a need for dyes that are highly soluble in alcohols, cellosolves, and ketones.Also, a drawback of organic dye-based recording materials is that they are prone to photodegradation, and deteriorated recording layers can cause problems such as a decrease in reflectance. It was alive.
そこで、本発明は光カードの記録層に用いられる記録材
料として耐光性及び溶媒への溶解性に優れ、かつ記録感
度の高いシアニン系染料を提供することを目的とする。Accordingly, an object of the present invention is to provide a cyanine dye having excellent light resistance and solubility in solvents and high recording sensitivity as a recording material used in the recording layer of an optical card.
く課題を解決するための手段〉
上記の目的を達成するために本発明は、光記録層をカー
ド基材上に形成してなる光カードにおいて、少なくとも
シアニン色素カチオンと、有機ホスフェートアニオンと
の塩を含み、かつ前記有機ホスソエートアニオンが、以
下の一般式（Ｉ）で表されるアニオンであることを特徴
とする光カードである。Means for Solving the Problems> In order to achieve the above object, the present invention provides an optical card in which an optical recording layer is formed on a card base material, in which a salt of at least a cyanine dye cation and an organic phosphate anion is used. and the organic phosphonate anion is an anion represented by the following general formula (I).
Ｒ＋ Ｒ。R+ R.
（式中Ｒ１及びＲ１はそれぞれ水素原子またはアルキル
基を示し、Ｒ１は直接結合手、アルキリデン基または、
硫黄原子を表す。）
〈作用〉
上記の如く、本発明によれば光記録層に用いるシアニン
系染料のアニオン成分に前記一般式（Ｉ）で表わされる
有機ホスフェートアニオンを用いるため、光記録層の光
劣化が生じにくいため、保存安定性がよく、溶媒への溶
解性が高くなり、成膜性に優れる。(In the formula, R1 and R1 each represent a hydrogen atom or an alkyl group, and R1 is a direct bond, an alkylidene group, or
Represents a sulfur atom. ) <Function> As described above, according to the present invention, since the organic phosphate anion represented by the general formula (I) is used as the anion component of the cyanine dye used in the optical recording layer, photodeterioration of the optical recording layer is less likely to occur. Therefore, it has good storage stability, high solubility in solvents, and excellent film-forming properties.
〈実施例〉 以下図面の実施例に基づき、詳細に説明する。<Example> A detailed description will be given below based on the embodiments shown in the drawings.
第１図は、本発明の光カードの構成の一例を示す断面図
であり、カード基材（７）上に接着剤層（６）、緩衝Ｎ
（５）を介して光記録層（４）を積層し、さらに保護シ
ー） （３） 、表面硬化層（２）を順次積層した光カ
ード（＋）である。FIG. 1 is a sectional view showing an example of the structure of the optical card of the present invention, in which an adhesive layer (6) is provided on a card base material (7), a buffer N
This is an optical card (+) in which an optical recording layer (4) is laminated via (5), and a protective sheet (3) and a surface hardening layer (2) are further laminated in this order.
光記録層（４）は、シアニン色素カチオンと有機ホスフ
ェートアニオンとの塩を主要構成成分とするシアニン系
染料からなる。ここで有機ホスフェートアニオンは次の
一般式で表され、
式中Ｒ２及びＲよはそれぞれ水素原子またはアルキル基
を示し、Ｒ１は直接結合手、アルキリデン基または、硫
黄原子を表す、 Ｒ１、Ｒ８としては、メチル、エチル
、プロピル、セーブチルなどが挙げられるまた、Ｒ１の
アルキリデンとしては、メチレン、エチリデンなどが挙
げられる。The optical recording layer (4) is made of a cyanine dye whose main constituents are a salt of a cyanine dye cation and an organic phosphate anion. Here, the organic phosphate anion is represented by the following general formula, where R2 and R each represent a hydrogen atom or an alkyl group, R1 represents a direct bond, an alkylidene group, or a sulfur atom, and R1 and R8 are , methyl, ethyl, propyl, savetyl and the like.Alkylidene for R1 includes methylene, ethylidene and the like.
具体的には、
Ａ−１２，２’ −メチレンビス （４，６−シメチ
ルフエニル）本スフエート７二オン
Ａ −２２，２’ −メチレンビス （４，６−ジ
エチルフェニル）本スフエート７二オン
八 −３２，２’ −メチレンビス （４，６−ｔ−
プチルフェニ０参スフエートアニオン
Ａ −４２，２’ −チオビス （４，６−ｔ−ｊ
チ１ｔフェニル）参スフエート７二オン
などを用いることができる。Specifically, A-12,2'-methylenebis(4,6-dimethylphenyl)sulphate 7ion A-22,2'-methylenebis(4,6-diethylphenyl)sulphate 7ion 8-32, 2'-methylenebis (4,6-t-
Butylphenyl sulfate anion A -42,2'-thiobis (4,6-t-j
(1t phenyl) sulfate 7dion, etc. can be used.
一方、シアニン色素カチオンとしては、特に限定される
ものではなく、記録光源の波長に合わせて用いることが
でき、半導体レーザを用いる場合には、例として、
Ｋ −１１，１’ 、３，３．３’ 、３’
−ヘキサメチル−２，２’ −イツトトリ方ルｉシア
ニンカチオン
Ｋ −２１，１’ 、３，３．３’ 、３’
−へ＄サメチル −５，５′り０ロー２．２′ −イン
ド
トリｈルネシ７ニンｂチオン
Ｋ −３１，１’ −ジエチル−２，２′ −キノ
トリｂルｆシアニンｂチオンＫ −４３，３’ −
ジエチル−２，２′ −チアトリ方ルｆシアニン方チオ
ンＫ −５１，１’ −ジエチル−３，３，３’
、３’ −テトラメチル−２゜２′ −インド
トリｂル本シアニンｂチオン
Ｋ −６１，１’ 、３．３．３’ 、３’
−ヘキサメチル−４，５−，４’５′ −ジベンゾ −
２，２′ −インドトリカル番シアニンｂチオン
などを挙げることができる。On the other hand, the cyanine dye cation is not particularly limited and can be used depending on the wavelength of the recording light source, and when using a semiconductor laser, examples include K -11,1', 3,3. 3', 3'
-hexamethyl-2,2' -trimethyl cyanine cation K -21,1', 3,3.3', 3'
-Samethyl -5,5'ri0low2,2' -IndotrihRunesi7ninbthione K -31,1'-Diethyl-2,2' -Quinotribcyaninebthione K -43,3 ' −
Diethyl-2,2'-thiatriyl fcyanine thione K-51,1'-diethyl-3,3,3'
, 3'-tetramethyl-2゜2'-indotricyanine b thione K-61,1', 3.3.3', 3'
-hexamethyl-4,5-,4'5' -dibenzo -
Examples include 2,2'-indotrical cyanine b thione.
本発明に係る記録材料は、上記有機ホスフェートアニオ
ンとシアニン色素カチオンとの塩であるシアニン染料で
あり、具体例としては、Ｎｏ、−Ｉ Ｋ −１とＡ
−３との塩Ｎｏ、−２Ｋ ｌとＡ−４−との塩
Ｎｏ、−３Ｋ −４とＡ−１との塩
Ｎｏ、−４Ｋ −４とＡ−３との塩
Ｎｏ、−５Ｋ −６とＡ−２との塩
Ｎｏ、−６Ｋ −６とＡ−３との塩
などを挙げることができる。これら有機ホスフェートア
ニオンと塩を作ったシアニン系染料は、従来のハロゲン
アニオン、有機スルホネートアニオンとの塩であるシア
ニン染料よりも高い溶解性を示す。The recording material according to the present invention is a cyanine dye which is a salt of the above-mentioned organic phosphate anion and a cyanine dye cation, and specific examples thereof include No., -I K -1 and A.
Salt No. of -3, -2K Salt No. of l and A-4-, -3K Salt No. of -4 and A-1, -4K Salt No. of -4 and A-3, -5K -6 Examples include salt No. of and A-2, salt No. of -6K-6 and A-3, and the like. Cyanine dyes formed into salts with these organic phosphate anions exhibit higher solubility than conventional cyanine dyes formed into salts with halogen anions and organic sulfonate anions.
コーティングにおけるパラメータには、塗液の濃度、塗
布速度、乾燥速度、塗布媒体などが挙げられるが、従来
は塗液濃度の制限のために他のパラメータも制約されて
しまい、膜厚、均一性などの品質面の制御や、量産性に
難しい面があった。Parameters in coating include coating liquid concentration, coating speed, drying speed, coating medium, etc., but traditionally, other parameters were also restricted due to limitations on coating liquid concentration, such as film thickness, uniformity, etc. However, it was difficult to control the quality of the product and mass-produce it.
しかしながら、本発明による染料を用いることにより、
より高濃度の塗液を調製することができることから、よ
り簡便なコーティング制御を行なうことができる。However, by using the dye according to the invention,
Since a coating liquid with a higher concentration can be prepared, coating control can be performed more easily.
また、有機リン化合物は抗酸化剤としての機能を有する
ため、光ディスクに比して外光にさらされることの多い
光カードでは、記録材料の耐性向上としても寄与するこ
とができる。Furthermore, since organic phosphorus compounds have a function as an antioxidant, they can also contribute to improving the durability of recording materials in optical cards, which are more exposed to external light than optical disks.
次に、シアニン系染料の具体的な合成例を挙げる。Next, specific examples of synthesis of cyanine dyes will be given.
合成例（Ｎｏ、１の合成）
１．１’ 、３．３．３’ 、３’−へキサメチル−２
，２′インドトリカルボシアニンヨーダイド（０，００
０５モル、０．２７ ｇ ）およびナトリウム−２，２
′ −メチレンビス（４，６−ジーｔ−ブチルフェニル
）ホスフェート（０，０００５モル、０．２５ ｇ ）
をメタノール５０ｄに溶解し、還流下３時間攪拌し
た。しかる後にメタノール３０ｍ１を留去し、水５０Ｉ
１１を加えた後に残りのメタノールを留去した。冷却し
て析出した緑色粉末を濾過し、水洗、乾燥して目的物を
得た。緑色粉末の融点は２０５℃、λ―ａｘ７４５ｎ■
、リン含有率３゜３５％であった。Synthesis example (Synthesis of No. 1) 1.1', 3.3.3', 3'-hexamethyl-2
, 2' indotricarbocyanine iodide (0,00
05 mol, 0.27 g) and sodium-2,2
'-methylenebis(4,6-di-t-butylphenyl)phosphate (0,0005 mol, 0.25 g)
was dissolved in 50 d of methanol and stirred under reflux for 3 hours. After that, 30ml of methanol was distilled off, and 50ml of water was distilled off.
After adding 11, the remaining methanol was distilled off. The green powder precipitated after cooling was filtered, washed with water, and dried to obtain the desired product. The melting point of the green powder is 205℃, λ-ax 745n■
The phosphorus content was 3°35%.
また、カード基材（７）に用いる材料としては、所望の
機械的強度及び熱特性を有すれば、特に限定されること
はなく、ポリエチレン、ポリプロピレン、ＡＢＳ樹脂、
ポリ塩化ビニル、ポリカーボネート樹脂等が挙げられる
。Further, the material used for the card base material (7) is not particularly limited as long as it has desired mechanical strength and thermal properties, such as polyethylene, polypropylene, ABS resin,
Examples include polyvinyl chloride and polycarbonate resin.
接着剤（６）としては、記録層と相互作用（インタラク
ション）を生じないもので、かつ接着強度があり、光記
録・再生に影響の少ないものを選ぶ必要あり、エポキシ
系、ウレタン系、アクリル系等のものが挙げられる。As the adhesive (6), it is necessary to select an adhesive that does not interact with the recording layer, has adhesive strength, and has little effect on optical recording/playback, such as epoxy, urethane, or acrylic. etc. can be mentioned.
また、光記録層（４）の記録感度を上げるために光記録
層（４）と接着剤（６）との間に、例えばシリコーン樹
脂のような緩衝層（５）を必要に応じて設けてもよい。Furthermore, in order to increase the recording sensitivity of the optical recording layer (4), a buffer layer (5) such as silicone resin may be provided between the optical recording layer (4) and the adhesive (6) as necessary. Good too.
保護シート（３）は、書き込み光及び読み出し光に対し
て、実質的に透明で所望の機械的強度及び光学特性を有
すれば、特に限定されず、ポリカーボネート樹脂、アク
リル樹脂、ウレタン樹脂、エポキシ樹脂、ポリ塩化ビニ
ル樹脂、ポリオレフィン樹脂、スチレンポリカーボネー
トブレンド樹脂等がある。また、保護シートには予め、
トラッキング溝などのプリフォーマットグループなどを
設けておいてもよい。The protective sheet (3) is not particularly limited as long as it is substantially transparent to writing light and reading light and has desired mechanical strength and optical properties, and may be made of polycarbonate resin, acrylic resin, urethane resin, or epoxy resin. , polyvinyl chloride resin, polyolefin resin, styrene polycarbonate blend resin, etc. In addition, the protective sheet includes
A preformat group such as a tracking groove may also be provided.
表面硬化層（２）は、保護シート（３）の表面を物理的
損傷から防護するためのものであり、任意に設けられる
。The surface hardening layer (2) is for protecting the surface of the protective sheet (3) from physical damage, and is optionally provided.
以下、具体的な実施例を述べる。Specific examples will be described below.
一尖１Ｌ倒」−一
所定のトラッキング溝を形成したアクリル樹脂製の透明
基板に、染料Ｎｏ、 １をシクロヘキサノン溶液から膜
厚が７０ｎｓ となるように塗布した０次いで、緩衝層
としてスチレンオリゴマ（ＳＴ−９５、三洋化成社製）
を膜厚２μｍで塗布した。さらにカード基板とエポキシ
樹脂系接着剤（アラルダイト）を用いて貼り合わせた後
全体を打ち抜き、光カードを製作した。この光カードを
半導体レーザ（８３０ｎ−１ｌＯＫＨｚ ）により信号
記録後０．５ｍＷのパワーで再生したところノイズの少
ない良好な再生信号が得られた。Dye No. 1 was coated from a cyclohexanone solution to a film thickness of 70 ns on a transparent substrate made of acrylic resin on which a predetermined tracking groove was formed.Next, styrene oligomer (ST) was applied as a buffer layer. -95, manufactured by Sanyo Chemical Co., Ltd.)
was applied to a film thickness of 2 μm. After bonding the card substrate with an epoxy resin adhesive (Araldite), the entire structure was punched out to produce an optical card. When this optical card was reproduced with a power of 0.5 mW after recording a signal using a semiconductor laser (830n-11OKHz), a good reproduced signal with little noise was obtained.
〈発明の効果〉
以上述べたように、本発明の光カードによれば、染料の
溶剤への溶解性が高く、成膜時のコーティング条件を簡
便とすることができ、耐光性に優れるため、光劣化が少
なく、書き込み、読み出しのためのレーザ光の照射時及
びその後において光記録層の反射率の低下がきわめて小
さくなる効果を奏する。<Effects of the Invention> As described above, according to the optical card of the present invention, the dye has high solubility in a solvent, the coating conditions during film formation can be simplified, and the optical card has excellent light resistance. There is little optical deterioration, and there is an effect that the decrease in reflectance of the optical recording layer is extremely small during and after irradiation with laser light for writing and reading.
第１図は、本発明の光カードの構成の一例を示す断面図
である。
ｌ：光カード
２：表面硬化層
３：保護シート
４：光記録層
５：緩衝層
６：接着剤層
７：カード基板
特 許 出 願 人
凸版印刷株式会社
代表者 鈴木和失FIG. 1 is a sectional view showing an example of the configuration of an optical card of the present invention. l: Optical card 2: Surface hardening layer 3: Protective sheet 4: Optical recording layer 5: Buffer layer 6: Adhesive layer 7: Card substrate patent application Person Toppan Printing Co., Ltd. Representative Kazutoshi Suzuki
Claims (1)
て、少なくともシアニン色素カチオンと有機ホスフェー
トアニオンとの塩を含み、かつ前記有機ホスフェートア
ニオンが、以下の一般式（ I ）で表されるアニオンで
あることを特徴とする光カード。 ▲数式、化学式、表等があります▼（ I ） （式中Ｒ＿１及びＲ＿２はそれぞれ水素原子またはアル
キル基を示し、Ｒ＿３は直接結合手、アルキリデン基ま
たは、硫黄原子を表す。）[Scope of Claims] An optical card in which an optical recording layer is formed on a card base material, which contains at least a salt of a cyanine dye cation and an organic phosphate anion, and the organic phosphate anion has the following general formula (I ) A light card characterized by being an anion represented by. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (I) (In the formula, R_1 and R_2 each represent a hydrogen atom or an alkyl group, and R_3 represents a direct bond, an alkylidene group, or a sulfur atom.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177417A JPH0342279A (en) | 1989-07-10 | 1989-07-10 | Optical card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177417A JPH0342279A (en) | 1989-07-10 | 1989-07-10 | Optical card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342279A true JPH0342279A (en) | 1991-02-22 |
Family
ID=16030562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1177417A Pending JPH0342279A (en) | 1989-07-10 | 1989-07-10 | Optical card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6376516B1 (en) | 1997-08-19 | 2002-04-23 | Emory University | Noscapine and noscapine derivatives, useful as anticancer agents |
| JP2017114955A (en) * | 2015-12-21 | 2017-06-29 | 東友ファインケム株式会社Dongwoo Fine−Chem Co., Ltd. | Novel cyanine compound and coloring curable resin composition containing the same |
-
1989
- 1989-07-10 JP JP1177417A patent/JPH0342279A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6376516B1 (en) | 1997-08-19 | 2002-04-23 | Emory University | Noscapine and noscapine derivatives, useful as anticancer agents |
| JP2017114955A (en) * | 2015-12-21 | 2017-06-29 | 東友ファインケム株式会社Dongwoo Fine−Chem Co., Ltd. | Novel cyanine compound and coloring curable resin composition containing the same |
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