JPS645557B2 - - Google Patents
Info
- Publication number
- JPS645557B2 JPS645557B2 JP55080948A JP8094880A JPS645557B2 JP S645557 B2 JPS645557 B2 JP S645557B2 JP 55080948 A JP55080948 A JP 55080948A JP 8094880 A JP8094880 A JP 8094880A JP S645557 B2 JPS645557 B2 JP S645557B2
- Authority
- JP
- Japan
- Prior art keywords
- color
- heat
- zinc
- sensitive recording
- recording material
- 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
Links
- 239000000463 material Substances 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 claims description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 2
- DLINORNFHVEIFE-UHFFFAOYSA-N hydrogen peroxide;zinc Chemical compound [Zn].OO DLINORNFHVEIFE-UHFFFAOYSA-N 0.000 claims description 2
- 239000004246 zinc acetate Substances 0.000 claims description 2
- 239000011667 zinc carbonate Substances 0.000 claims description 2
- 235000004416 zinc carbonate Nutrition 0.000 claims description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 229940105296 zinc peroxide Drugs 0.000 claims description 2
- ZPEJZWGMHAKWNL-UHFFFAOYSA-L zinc;oxalate Chemical compound [Zn+2].[O-]C(=O)C([O-])=O ZPEJZWGMHAKWNL-UHFFFAOYSA-L 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 8
- 239000000975 dye Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 239000004014 plasticizer Substances 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- WNZQDUSMALZDQF-UHFFFAOYSA-N 2-benzofuran-1(3H)-one Chemical compound C1=CC=C2C(=O)OCC2=C1 WNZQDUSMALZDQF-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000001454 recorded image Methods 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 2
- 229940007718 zinc hydroxide Drugs 0.000 description 2
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 2
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 1
- ABJAMKKUHBSXDS-UHFFFAOYSA-N 3,3-bis(6-amino-1,4-dimethylcyclohexa-2,4-dien-1-yl)-2-benzofuran-1-one Chemical compound C1=CC(C)=CC(N)C1(C)C1(C2(C)C(C=C(C)C=C2)N)C2=CC=CC=C2C(=O)O1 ABJAMKKUHBSXDS-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical class O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- CLGWKWDAQBVGFJ-UHFFFAOYSA-N 6-(dimethylamino)-3,3-bis[2-(dimethylamino)phenyl]-2-benzofuran-1-one Chemical compound C=1C(N(C)C)=CC=C2C=1C(=O)OC2(C=1C(=CC=CC=1)N(C)C)C1=CC=CC=C1N(C)C CLGWKWDAQBVGFJ-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 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
- 238000004040 coloring Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- JYIRYXFBDSKEFI-UHFFFAOYSA-L zinc azane dihydroxide Chemical compound N.[OH-].[OH-].[Zn++] JYIRYXFBDSKEFI-UHFFFAOYSA-L 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
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3338—Inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
本発明は加熱により発色剤と顕色剤が反応し
て、画像が記録される感熱記録体に関し特に顕色
剤として、特定の亜鉛化合物の１種または２種以
上を使用することにより、記録画像の保存安定性
を改良した感熱記録体を得ることを目的とする。
従来感熱記録体としては例えば米国特許第
2712507号、あるいは同第2730457号明細書に記載
されているクリスタルバイオレツトラクトン
（Ｃ・Ｖ・Ｌ・）などのロイコ染料とフエノール
性化合物の如き有機酸との組み合せよりなるもの
が公知である。
しかし、従来のこの種の感熱記録体は感熱発色
部がポリ塩化ビニルなどのプラスチツクと接触す
ると、プラスチツク中に含まれている可塑剤や安
定剤などにより、発色画像が退色し、消えてしま
つたり、また未発色部が接触した場合には発色し
なくなる欠点があつた。例えば感熱記録体の発色
部の上にプラスチツク消しゴムを置いておくと数
時間程度で発色画像が消えてしまつたり、発色記
録した感熱記録体をポリ塩化ビニル製のカードケ
ース中で長期間保存した場合には記録画像が消え
てしまうなどの不都合が生じた。
そこで、本発明者らは従来の感熱記録体に用い
られている感熱記録材料がプラスチツクに用いら
れる可塑剤などに対して不安定である原因を究明
するために種々検討した結果、従来顕色剤として
使用されているフエノール性化合物のごとき有機
酸はプラスチツクの可塑剤との相溶性が良いため
に、ロイコ染料との発色が起りにくくなり、また
発色している部分をも消してしまうことをつきと
め、ロイコ染料の顕色剤について検討した結果、
特定の亜鉛化合物を顕色剤として使用したときに
保存安定性の良い感熱記録体が得られることを見
出して、本発明に到達したものである。
すなわち本発明は、支持体上に通常無色または
淡色の発色性染料と該発色性染料を熱時発色させ
る顕色剤及び結着剤とを含有する記録層を設けた
感熱記録体において顕色剤として水酸化亜鉛、炭
酸亜鉛、しゆう酸亜鉛、酢酸亜鉛、或はこれらの
アンモニア錯体若しくは塩化亜鉛及び過酸化亜鉛
のアンモニア錯体の１種または２種以上を使用す
ることを特徴とする感熱記録体である。
本発明に用いられる無色または淡色の発色性染
料としては各種のものが公知であり、例えば次の
ようなものである。
３・３−ビス（Ｐ−ジメチルアミノフエニル）
フタリド、３・３−ビス（ジメチルアミノフエニ
ル）−６−ジメチルアミノフタリド、３−（Ｐ−ジ
メチルアミノフエニル）−３−（１，２−ジメチル
インドール−３イル）フタリド、４・4′−ビス−
ジメチルアミノベンゾヒドリルベンジルエーテ
ル、Ｎ−ハロフエニルロイコオーラミン、Ｎ−
２・４・５−トリクロロフエニルロイコオーラミ
ン、７−ジエチルアミノ−３−クロロフルオラ
ン、７−ジエチルアミノ−３−クロロ−２−メチ
ルフルオラン、２−フエニルアミノ−３−メチル
−６−（Ｎ−エチル−Ｎ−Ｐ−トリル）アミノフ
ルオラン、３−ジエチルアミノ−６−メチル−７
−アニリノフルオラン、ベンゾイルロイコメチレ
ンブルー、Ｐ−ニトロベンジルロイコメチレンブ
ルー、３−メチル−スピロ−ジナフトピラン、な
ど。
結着剤としては、水溶性の高分子が用いられ例
えばポリビニルアルコール、ヒドロキシエチルセ
ルロース、デンプン、カゼイン、スチレン−無水
マレイン酸共重合体の塩、スチレン−ブタジエン
ラテツクスなどである。
その他必要により、白色顔料、ワツクス類、分
散剤、消泡剤、などを用いてもよい。
上記の発色性物質、および顕色剤は各々別々に
ボールミルなどにより結着剤と共に分散せしめた
後、混合し、さらに必要に応じて顔料、ワツクス
などを加えた感熱塗料を紙もしくはプラスチツク
フイルムなどの支持体上に塗布して感熱記録体が
得られる。
本発明で得られた感熱記録体は、従来技術では
克服できなかつたプラスチツクの可塑剤などによ
る発色画像の消失を防止することができ、長期間
の保存安定性が顕著に改良され、また従来品では
発色しなかつた可塑剤が付着した部分の発色も可
能となつたものである。
以下、本発明を実施例にて具体的に説明する。
実施例 １
＜Ａ液＞
３−ジエチルアミノ−６−メチル−７−アニリノ
フルオラン ５重量部
10％ポリビニルアルコール水溶液 10 〃
水 20 〃
＜Ｂ液＞
水酸化亜鉛 10重量部
10％ポリビニルアルコール水溶液 10 〃
水 20 〃
Ａ液とＢ液を別々のボールミルで24時間粉砕、
分散した後、混合して調製した塗料を原紙上に乾
燥後の塗布量が７ｇ／m2となるよう塗布して感熱
記録体を得た。
実施例 ２
＜Ａ液＞
３−ジエチルアミノ−６−メチル−７−アニリノ
フルオラン ５重量部
10％ポリビニルアルコール水溶液 20 〃
水 20 〃
＜Ｂ液＞
水酸化亜鉛アンモニア錯体 10重量部
10％ポリビニルアルコール水溶液 10 〃
水 20 〃
＜Ｃ液＞
ステアリン酸アミド 10重量部
ドデシルベンゼンスルホン酸ソーダー 10 〃
水 20 〃
Ａ液、Ｂ液、Ｃ液を別々のボールミルで24時間
粉砕、分散した後混合して調製した塗料を原紙上
に乾燥後の塗布量が７ｇ／m2となるよう塗布して
感熱記録体を得た。
比較例
一般用のビスフエノールＡを顕色剤とした感熱
記録体。
上記の実施例ならびに比較例の感熱記録体を加
熱発色させ、発色部にプラスチツク消しゴムをの
せ、500ｇの圧力を加えて２時間放置して消色テ
ストを行なつた。この時の発色濃度と消色テスト
後の濃度を下表に示す。
発色濃度の測定はマクベス反射濃度計で測定し
た。
The present invention relates to a heat-sensitive recording medium in which an image is recorded by the reaction between a color former and a color developer by heating, and in particular, by using one or more specific zinc compounds as a color developer, the recorded image The purpose of the present invention is to obtain a heat-sensitive recording medium with improved storage stability. Conventional heat-sensitive recording materials include, for example, U.S. Patent No.
A combination of a leuco dye such as crystal violet lactone (C.V.L.) and an organic acid such as a phenolic compound described in No. 2712507 or No. 2730457 is known. However, in conventional heat-sensitive recording materials of this type, when the heat-sensitive color forming part comes into contact with plastic such as polyvinyl chloride, the color image fades and disappears due to the plasticizers and stabilizers contained in the plastic. Also, there was a drawback that coloring did not occur when uncolored areas came into contact with each other. For example, if a plastic eraser is placed on the colored part of a heat-sensitive recording material, the colored image will disappear within a few hours, or if a colored heat-sensitive recording material is stored for a long period of time in a polyvinyl chloride card case. In some cases, problems such as recorded images disappearing occurred. Therefore, the present inventors conducted various studies in order to investigate the cause of the instability of heat-sensitive recording materials used in conventional heat-sensitive recording media against plasticizers used in plastics. It was discovered that organic acids such as phenolic compounds used as leuco dyes have good compatibility with plasticizers, making it difficult for them to develop color with leuco dyes, and also erasing the colored areas. As a result of studying color developers for leuco dyes,
The present invention was achieved by discovering that a heat-sensitive recording material with good storage stability can be obtained when a specific zinc compound is used as a color developer. That is, the present invention provides a heat-sensitive recording material in which a recording layer containing a usually colorless or light-colored color-forming dye and a color developer and a binder that cause the color-forming dye to develop color when heated is provided on a support. A heat-sensitive recording material characterized in that one or more of zinc hydroxide, zinc carbonate, zinc oxalate, zinc acetate, or an ammonia complex thereof, or an ammonia complex of zinc chloride and zinc peroxide is used as the heat-sensitive recording material. It is. Various types of colorless or light-colored color-forming dyes are known to be used in the present invention, including the following. 3,3-bis(P-dimethylaminophenyl)
Phthalide, 3,3-bis(dimethylaminophenyl)-6-dimethylaminophthalide, 3-(P-dimethylaminophenyl)-3-(1,2-dimethylindol-3yl)phthalide, 4,4 ′-bis-
Dimethylaminobenzohydrylbenzyl ether, N-halophenyl leukoolamine, N-
2,4,5-trichlorophenylleucoauramine, 7-diethylamino-3-chlorofluoran, 7-diethylamino-3-chloro-2-methylfluoran, 2-phenylamino-3-methyl-6-(N- Ethyl-N-P-tolyl)aminofluorane, 3-diethylamino-6-methyl-7
-anilinofluorane, benzoylleucomethylene blue, P-nitrobenzylleucomethylene blue, 3-methyl-spiro-dinaphthopyran, etc. As the binder, water-soluble polymers are used, such as polyvinyl alcohol, hydroxyethyl cellulose, starch, casein, salts of styrene-maleic anhydride copolymers, and styrene-butadiene latex. In addition, white pigments, waxes, dispersants, antifoaming agents, etc. may be used if necessary. The above-mentioned color-forming substances and color developer are separately dispersed together with a binder using a ball mill, etc., then mixed, and then a heat-sensitive paint with pigments, wax, etc. added as necessary is applied to paper or plastic film. A heat-sensitive recording material is obtained by coating on a support. The heat-sensitive recording medium obtained by the present invention can prevent the loss of colored images caused by plasticizers in plastics, which could not be overcome with conventional techniques, and has significantly improved long-term storage stability, and is superior to conventional techniques. It is now possible to color the parts to which the plasticizer adheres, which would otherwise not develop color. Hereinafter, the present invention will be specifically explained with reference to Examples. Example 1 <Liquid A> 3-diethylamino-6-methyl-7-anilinofluorane 5 parts by weight 10% polyvinyl alcohol aqueous solution 10 Water 20 <Liquid B> Zinc hydroxide 10 parts by weight 10% polyvinyl alcohol aqueous solution 10 〃 Water 20 〃 Pulverize liquid A and liquid B in separate ball mills for 24 hours.
After dispersion, the mixed and prepared paint was applied onto a base paper so that the coating amount after drying was 7 g/m 2 to obtain a heat-sensitive recording material. Example 2 <Liquid A> 3-diethylamino-6-methyl-7-anilinofluorane 5 parts by weight 10% polyvinyl alcohol aqueous solution 20 Water 20 <Liquid B> Zinc hydroxide ammonia complex 10 parts by weight 10% polyvinyl alcohol Aqueous solution 10 〃 Water 20 〃 <Liquid C> Stearic acid amide 10 parts by weight Sodium dodecylbenzenesulfonic acid 10 〃 Water 20 〃 Prepared by grinding and dispersing Liquids A, B, and C in separate ball mills for 24 hours, and then mixing them. The resulting paint was applied onto a base paper so that the coating amount after drying was 7 g/m 2 to obtain a heat-sensitive recording material. Comparative Example A heat-sensitive recording material using general-purpose bisphenol A as a color developer. The heat-sensitive recording materials of the above Examples and Comparative Examples were heated to develop color, a plastic eraser was placed on the color development area, a pressure of 500 g was applied, and the color was left to stand for 2 hours to conduct a color erasure test. The color density at this time and the density after the color erasure test are shown in the table below. The color density was measured using a Macbeth reflection densitometer.
【表】
表からも解るように、本願の感熱記録体の発色
画像はプラスチツクの可塑剤に対して極めて安定
なものである。[Table] As can be seen from the table, the colored images of the heat-sensitive recording material of the present application are extremely stable against plasticizers of plastics.
Claims (1)
と該発色性染料を熱時発色させる顕色剤及び結着
剤とを含有する記録層を設けた感熱記録体におい
て、顕色剤として水酸化亜鉛、炭酸亜鉛、しゆう
酸亜鉛、酢酸亜鉛、或はこれらのアンモニア錯体
若しくは塩化亜鉛及び過酸化亜鉛のアンモニア錯
体のうちから選ばれる１種または２種以上を使用
することを特徴とする感熱記録体。1. In a heat-sensitive recording material in which a recording layer containing a usually colorless or light-colored color-forming dye and a color developer and a binder that cause the color-forming dye to develop color when heated is provided on a support, hydroxide is used as the color developer. A heat-sensitive recording characterized by using one or more types selected from zinc, zinc carbonate, zinc oxalate, zinc acetate, or an ammonia complex thereof, or an ammonia complex of zinc chloride and zinc peroxide. body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8094880A JPS576794A (en) | 1980-06-17 | 1980-06-17 | Thermosensitive recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8094880A JPS576794A (en) | 1980-06-17 | 1980-06-17 | Thermosensitive recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS576794A JPS576794A (en) | 1982-01-13 |
| JPS645557B2 true JPS645557B2 (en) | 1989-01-31 |
Family
ID=13732716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8094880A Granted JPS576794A (en) | 1980-06-17 | 1980-06-17 | Thermosensitive recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS576794A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108596B2 (en) * | 1985-11-19 | 1995-11-22 | 株式会社リコー | Thermal recording material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127544B2 (en) * | 1972-09-11 | 1976-08-13 | ||
| JPS5081158A (en) * | 1973-11-16 | 1975-07-01 | ||
| JPS5289931A (en) * | 1976-01-23 | 1977-07-28 | Nippon Telegr & Teleph Corp <Ntt> | Thermal recording sheet |
| JPS5829752B2 (en) * | 1976-06-21 | 1983-06-24 | 積水化学工業株式会社 | heat sensitive recording material |
| JPS5348751A (en) * | 1976-10-16 | 1978-05-02 | Kanzaki Paper Mfg Co Ltd | Heat sensitive recording member |
-
1980
- 1980-06-17 JP JP8094880A patent/JPS576794A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS576794A (en) | 1982-01-13 |
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