JPH0237874B2 - - Google Patents
Info
- Publication number
- JPH0237874B2 JPH0237874B2 JP58016077A JP1607783A JPH0237874B2 JP H0237874 B2 JPH0237874 B2 JP H0237874B2 JP 58016077 A JP58016077 A JP 58016077A JP 1607783 A JP1607783 A JP 1607783A JP H0237874 B2 JPH0237874 B2 JP H0237874B2
- Authority
- JP
- Japan
- Prior art keywords
- compound
- recording layer
- recording
- present
- reaction
- 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.)
- Expired - Lifetime
Links
- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 16
- -1 p-phenylenediamine compound Chemical class 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims 1
- 239000005751 Copper oxide Substances 0.000 claims 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 1
- 229910000431 copper oxide Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 9
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 4
- 229920001059 synthetic polymer Polymers 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 150000008049 diazo compounds Chemical class 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000001454 recorded image Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- DYRDKSSFIWVSNM-UHFFFAOYSA-N acetoacetanilide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1 DYRDKSSFIWVSNM-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920005615 natural polymer Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 238000007651 thermal printing Methods 0.000 description 2
- QTLHLXYADXCVCF-UHFFFAOYSA-N 2-(4-amino-n-ethyl-3-methylanilino)ethanol Chemical compound OCCN(CC)C1=CC=C(N)C(C)=C1 QTLHLXYADXCVCF-UHFFFAOYSA-N 0.000 description 1
- WFXLRLQSHRNHCE-UHFFFAOYSA-N 2-(4-amino-n-ethylanilino)ethanol Chemical compound OCCN(CC)C1=CC=C(N)C=C1 WFXLRLQSHRNHCE-UHFFFAOYSA-N 0.000 description 1
- NNZXDXMEXBYSRF-UHFFFAOYSA-N 2-methyl-4h-pyrazol-3-one Chemical compound CN1N=CCC1=O NNZXDXMEXBYSRF-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- QELUYTUMUWHWMC-UHFFFAOYSA-N edaravone Chemical compound O=C1CC(C)=NN1C1=CC=CC=C1 QELUYTUMUWHWMC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- JSUIXVZTHSSHPJ-UHFFFAOYSA-N n-(2-anilinoethyl)methanesulfonamide Chemical compound CS(=O)(=O)NCCNC1=CC=CC=C1 JSUIXVZTHSSHPJ-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical class O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 150000003568 thioethers Chemical class 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
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/337—Additives; Binders
- B41M5/3375—Non-macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は単層でも熱的に活性化することにより
高濃度に発色する定着可能な画像を提供する記録
材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a recording material that provides a fixable image with high color density by thermal activation even in a single layer.
（従来技術）
従来、感熱記録材としては、ロイコ染料と酸性
物質との反応性を利用して感熱発色を行なわせる
ものが知られている。しかしながら、このような
感熱記録材は非定着性のものであるため記録した
画像を定着させることができないという欠点を有
している。すなわち、一度加熱印字により記録し
た画像を、再び別の加熱印字により改ざんするこ
とも可能である。さらに、70℃以上の環境にさら
されると全面が発色し、記録が判続できなくなる
という問題も起るため、その改善が強く望まれて
いる。(Prior Art) Conventionally, as a heat-sensitive recording material, one is known that is capable of heat-sensitive coloring by utilizing the reactivity of a leuco dye and an acidic substance. However, such heat-sensitive recording materials have the disadvantage that recorded images cannot be fixed because they are non-fixable. That is, it is also possible to falsify an image once recorded by thermal printing by another thermal printing. Furthermore, when exposed to an environment of 70 degrees Celsius or higher, the entire surface develops color, making recording unrecognizable, so there is a strong desire to improve this problem.
一方、定着可能な記録材料としては、従来、ジ
アゾ化合物とカプラー化合物との反応を利用した
ものがあり、この反応を加熱により行わせるよう
にしたものとしてジアゾ型感熱記録材料が周知で
ある。しかしながら、このジアゾ型感熱記録材料
は、ジアゾ化合物とカプラー化合物のうちいずれ
か一つの成分を他の成分から隔離し、保存中に発
色反応が進まないようにする必要があり、多層構
造、マイクロカプセル化等の隔離方法が用いられ
ている。したがつて、単層構造の場合に比べて、
それだけ多くの製造工程が必要であり、製造面で
不利である。 On the other hand, as fixable recording materials, there have conventionally been those that utilize a reaction between a diazo compound and a coupler compound, and diazo-type thermosensitive recording materials are well known as materials in which this reaction is caused by heating. However, this diazo-type heat-sensitive recording material requires the isolation of either the diazo compound or the coupler compound from the other components to prevent the color reaction from proceeding during storage, and requires a multilayer structure, microcapsules, etc. Isolation methods such as oxidation are used. Therefore, compared to the case of a single layer structure,
This requires many manufacturing steps, which is disadvantageous in terms of manufacturing.
（目 的）
本発明は、前記した従来技術の欠点を解消し、
記録層が単一記録層であつても、記録画像が定着
可能で、しかも保存性に秀れた新規な記録材料の
提供を目的としているる。(Objective) The present invention solves the drawbacks of the prior art described above, and
The object of the present invention is to provide a novel recording material that can fix a recorded image even if the recording layer is a single recording layer and has excellent storage stability.
（発明の構成）
本発明は、支持体上の記録層にはｐ―フエニレ
ンジアミン化合物、カプラー化合物、熱により塩
基を発生する物質及び反応保進剤とが含有されて
いることを特徴とする記録材料である。(Structure of the Invention) The present invention is characterized in that the recording layer on the support contains a p-phenylenediamine compound, a coupler compound, a substance that generates a base when heated, and a reaction preservative. It is a recording material.
（発明の具体的説明）
本発明はｐ―フエニレンジアミン化合物とカプ
ラー化合物とが反応するいわゆるカプリング反応
を利用するものである。すなわち、本発明におけ
る発色画像は、カプリング反応により合成された
有色染料によるものであるため、一度形成された
画像は消色することなく長期間安定である。さら
に、カプリング反応は低PH領域では起りにくいた
め、記録層をPH５以下、好ましくはPH４以下に保
ち発色反応を抑制することにより、本発明におけ
る記録層は単層構造することも可能である。(Specific Description of the Invention) The present invention utilizes a so-called coupling reaction in which a p-phenylenediamine compound and a coupler compound react. That is, since the colored image in the present invention is based on a colored dye synthesized by a coupling reaction, the image once formed is stable for a long period of time without decoloring. Further, since the coupling reaction is difficult to occur in a low pH range, the recording layer in the present invention can have a single layer structure by keeping the recording layer at a pH of 5 or less, preferably 4 or less to suppress the coloring reaction.
ｐ―フエニレンジアミン化合物とカプラー化合
物とによるカプリング反応は低PH領域では起りに
くく、高PH領域で起こりやすいのは周知であり、
本発明は天然または合成高分子化合物よりなる結
着剤中に微粒子状に分散されたカプラー化合物、
カプラー化合物とカプリング反応して発色化合物
を形成しうるｐ―フエニレンジアミン化合物、加
熱によりカプリング反応を起させるにたりる塩基
を供給する塩基発生物質の微粒子状分散物または
溶解物、およびカプリング反応を促進せしめる反
応促進剤の微粒子分散物または溶解物を含有する
低PHの記録層を支持体上に形成し、常温下では低
PHにより記録層の安定性を保ち、加熱により生成
される塩基により記録層のPHをPH5.5以上、好ま
しくはPH７以上に上昇させ、カプリング反応を起
させると同時に反応促進剤を加えてカプリング反
応を短時間で速やかに進行させ、高濃度に発色す
る記録層を得るものである。 It is well known that the coupling reaction between a p-phenylenediamine compound and a coupler compound is difficult to occur in a low pH range, and is more likely to occur in a high pH range.
The present invention provides a coupler compound dispersed in the form of fine particles in a binder made of a natural or synthetic polymer compound,
A p-phenylenediamine compound capable of coupling reaction with a coupler compound to form a color-forming compound, a fine particulate dispersion or melt of a base generating substance that supplies a base to cause the coupling reaction upon heating, and A low pH recording layer containing a fine particle dispersion or a dissolved substance of a reaction accelerator is formed on a support, and the recording layer has a low pH at room temperature.
The stability of the recording layer is maintained by the PH, and the PH of the recording layer is raised to PH5.5 or higher, preferably PH7 or higher by the base generated by heating, and at the same time, a reaction accelerator is added to cause the coupling reaction. This process is carried out rapidly in a short period of time to obtain a recording layer that develops color with high density.
ｐ―フエニレンジアミン化合物とカプラー化合
物との反応は、系がアルカリ性の状態であつても
反応速度はあまり速くはないが、本発明は、ｐ―
フエニレンジアミン化合物、カプラー化合物およ
び塩基発生物質を含有する系にカプリング反応を
促進する反応促進剤として金属化合物を加えるこ
とにより、加熱によりカプリング反応が短時間で
速やかに進行するようにしたことを特徴とするも
のである。 The reaction rate between a p-phenylenediamine compound and a coupler compound is not very fast even when the system is alkaline.
A metal compound is added to a system containing a phenylenediamine compound, a coupler compound, and a base generating substance as a reaction accelerator to promote the coupling reaction, so that the coupling reaction can proceed rapidly in a short period of time by heating. That is.
次に本発明に用いられる材料を例示する。 Next, materials used in the present invention will be illustrated.
（結着剤）
天然高分子化合物としては澱粉、ゼラチン、カ
ゼイン等が例示できる。また、合成高分子化合物
としてはPAV、CMC、ヒドロキシエチルセルロ
ース等が例示できる。(Binder) Examples of natural polymer compounds include starch, gelatin, and casein. Examples of synthetic polymer compounds include PAV, CMC, and hydroxyethyl cellulose.
（カプラー化合物）
α―ナフトールおよびこの誘導体、フエノール
およびこの誘導体、アセト酢酸アニリドで代表さ
れるアシルアミド型化合物、１―フエニル―３―
メチル―５―ピラゾロンで代表されるピラゾロン
型化合物等が例示される。(Coupler compounds) α-naphthol and its derivatives, phenol and its derivatives, acylamide type compounds represented by acetoacetanilide, 1-phenyl-3-
Examples include pyrazolone type compounds represented by methyl-5-pyrazolone.
（ｐ―フエニレンジアミン化合物）
Ｎ・Ｎ―ジメチル―ｐ―フエニレンジアミン、
Ｎ・Ｎ―ジエチル―ｐ―フエニレンジアミン、４
―アミノ―Ｎ―エチル―Ｎ―（β―ヒドロキシエ
チル）―アニリン、４―アミノ―３―メチル―Ｎ
―ジエチルアニリン、４―アミノ―３―メチル―
Ｎ―エチル―Ｎ―（β―ヒドロキシエチル）―ア
ニリン、４―アミノ―３―メチル―Ｎ―エチル―
Ｎ―（β―メタンスルホンアミドエチル）―アニ
リン等の硫酸塩および塩酸塩が例示される。(p-phenylenediamine compound) N.N-dimethyl-p-phenylenediamine,
N・N-diethyl-p-phenylenediamine, 4
-Amino-N-ethyl-N-(β-hydroxyethyl)-aniline, 4-amino-3-methyl-N
-diethylaniline, 4-amino-3-methyl-
N-ethyl-N-(β-hydroxyethyl)-aniline, 4-amino-3-methyl-N-ethyl-
Examples include sulfates and hydrochlorides such as N-(β-methanesulfonamidoethyl)-aniline.
（塩基発生物質）
イミダゾールおよびその誘導体、尿素あるいは
ベンズアミドで代表されるアミド化合物、グアニ
ジンで代表されるグアニジン化合物、アニリンで
代表されるアニリン化合物等が例示される。(Base generating substance) Examples include imidazole and derivatives thereof, amide compounds represented by urea or benzamide, guanidine compounds represented by guanidine, and aniline compounds represented by aniline.
（反応促進剤）
銅の金属の酸化物、硫化物、ハロゲン化物、硫
酸塩、硝酸塩、炭酸塩、有機酸塩等が例示され
る。(Reaction accelerator) Examples include copper metal oxides, sulfides, halides, sulfates, nitrates, carbonates, and organic acid salts.
（支持体）
上質紙、塗工紙等の一般紙、合成高分子樹脂を
塗布したラミネート紙、合成紙、合成高分子化合
物のフイルム等が例示される。(Support) Examples include general paper such as high quality paper and coated paper, laminated paper coated with synthetic polymer resin, synthetic paper, and film of synthetic polymer compound.
さらに本発明は上記材料の他に必要に応じて界
面活性剤、熱可融性物質等を併用することも可能
である。 Further, in the present invention, in addition to the above-mentioned materials, surfactants, thermofusible substances, etc. can be used in combination as necessary.
本発明の結着剤、カプラー化合物、ｐ―フエニ
レンジアミン化合物、塩基発生物質および反応促
進剤の使用重量割合は次のとおりである。結着剤
10部に対してカプラー化合物は通常0.1〜10部、
好ましくは２〜４部、ｐ―フエニレンジアミン化
合物は通常0.1〜10部、好ましくは２〜４部、塩
基発生物質は通常１〜40部、好ましくは10〜20
部、反応促進剤は水溶性のものは通常0.1〜10部、
好ましくは0.5〜1.0部、不溶性のものは微粒子状
に分散して通常５〜50部、好ましくは10〜20部が
使用される。 The weight proportions of the binder, coupler compound, p-phenylenediamine compound, base generator and reaction accelerator used in the present invention are as follows. binder
The coupler compound is usually 0.1 to 10 parts per 10 parts,
Preferably 2 to 4 parts, p-phenylenediamine compound usually 0.1 to 10 parts, preferably 2 to 4 parts, base generator usually 1 to 40 parts, preferably 10 to 20 parts.
parts, the reaction accelerator is usually 0.1 to 10 parts if it is water-soluble,
Preferably 0.5 to 1.0 parts are used, and insoluble ones are usually used in an amount of 5 to 50 parts, preferably 10 to 20 parts after being dispersed in the form of fine particles.
また、本発明の記録層の塗布量は、カプラー化
合物として通常0.5〜10ｇ／m2、好ましくは1.5〜
3.0ｇ／m2である。 Further, the coating amount of the recording layer of the present invention is usually 0.5 to 10 g/m 2 as a coupler compound, preferably 1.5 to 10 g/m 2 .
It is 3.0g/ m2 .
以下、実施例によつて本発明を説明する。 The present invention will be explained below with reference to Examples.
実施例 １
５％PVA溶液100ml中に次の各成分を混合して
本発明の組成物を調製した。Example 1 A composition of the present invention was prepared by mixing the following components in 100 ml of 5% PVA solution.
N.N―ジエチル―ｐ―フエニレンジアミン
硫酸塩 1.5ｇ
α―ナフトール（フタル酸エチル２ｇ中に溶
解後混合） 1.4ｇ
尿 素 5.0ｇ
硫酸銅 0.5ｇ
上記組成物のPHを2.5に調製したものを表面に
コロナ処理をほどこしたポリエチレンラミネート
紙に10ｇ／m2塗布し、60℃で５分間風乾して記録
紙を得た。これを140℃の熱板上で１秒間加熱す
ると、鮮明な青色に発色した。NN-diethyl-p-phenylenediamine sulfate 1.5 g α-naphthol (mixed after dissolving in 2 g of ethyl phthalate) 1.4 g Urea 5.0 g Copper sulfate 0.5 g A recording paper was obtained by applying 10 g/m 2 of the solution to polyethylene laminate paper which had been subjected to corona treatment and air-drying it at 60°C for 5 minutes. When this was heated for 1 second on a hot plate at 140°C, it developed a clear blue color.
実施例 ２
実施例１の組成物においてα―ナフトールの代
りに１―フエニル―３―メチル―５―ピラゾロン
1.7ｇを混合したほかは実施例１と全く同様にし
て記録紙を得た。これを140℃の熱板上で１秒間
加熱すると、鮮明な赤色に発色した。Example 2 In the composition of Example 1, 1-phenyl-3-methyl-5-pyrazolone was used instead of α-naphthol.
A recording paper was obtained in exactly the same manner as in Example 1 except that 1.7 g was mixed. When this was heated for 1 second on a hot plate at 140°C, it developed a bright red color.
実施例 ３
実施例１の組成物においてα―ナフトールの代
りにアセト酢酸アニリド1.8ｇを混合したほかは
実施例１と全く同等にして記録紙を得た。これを
140℃の熱板上で１秒間加熱すると、鮮明な黄色
に発色した。Example 3 A recording paper was obtained in exactly the same manner as in Example 1 except that 1.8 g of acetoacetanilide was mixed in place of α-naphthol in the composition of Example 1. this
When heated for 1 second on a hot plate at 140°C, a bright yellow color developed.
（発明の効果）
以上説明してきたように、本発明は記録画像は
定着されているから、記録後の改ざんは極めて困
難であり、また保存性に秀れた記録材料である。
さらに本発明は、ジアゾ化合物とカプラー化合物
とからなる記録材料のように、いずれの化合物を
他の化合物から隔離しておく必要がないので、多
層構造、マイクロカプセル化等をしなくともよ
く、単層構造の記録層を有する定着可能な記録材
料とすることができる。(Effects of the Invention) As explained above, in the present invention, since the recorded image is fixed, it is extremely difficult to tamper with it after recording, and the recording material has excellent preservability.
Furthermore, unlike recording materials consisting of a diazo compound and a coupler compound, the present invention does not require any compound to be isolated from the other, so there is no need for a multilayer structure, microencapsulation, etc. It can be a fixable recording material having a layered recording layer.
Claims (1)
録材料において、該記録層には、ｐ―フエニレン
ジアミン化合物、カプラー化合物、加熱により塩
基を発生する化合物及び銅の酸化物、硫化物、ハ
ロゲン化物、無機酸塩または有機酸塩からなる反
応促進剤とが含有されていることを特徴とする感
熱記録材。1. In a heat-sensitive recording material having a support and a recording layer on the support, the recording layer contains a p-phenylenediamine compound, a coupler compound, a compound that generates a base upon heating, a copper oxide, a sulfide, A heat-sensitive recording material characterized in that it contains a reaction accelerator consisting of a halide, an inorganic acid salt, or an organic acid salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58016077A JPS59142184A (en) | 1983-02-04 | 1983-02-04 | Thermal recording material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58016077A JPS59142184A (en) | 1983-02-04 | 1983-02-04 | Thermal recording material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59142184A JPS59142184A (en) | 1984-08-15 |
| JPH0237874B2 true JPH0237874B2 (en) | 1990-08-28 |
Family
ID=11906490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58016077A Granted JPS59142184A (en) | 1983-02-04 | 1983-02-04 | Thermal recording material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59142184A (en) |
-
1983
- 1983-02-04 JP JP58016077A patent/JPS59142184A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59142184A (en) | 1984-08-15 |
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