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31. 发明专利

JPH04357078A THERMAL RECORDING MEDIUM 失效
公开(公告)号：JPH04357078A
公开(公告)日：1992-12-10
申请号：JP25214691
申请日：1991-09-30
申请人： KANZAKI PAPER MFG CO LTD
发明人： OKAMOTO TOSAKU , NAKANO ISAMU , TSUCHIDA TETSUO , ARAI NAOTO
IPC分类号： B41M5/337 , B41M5/26
摘要： PURPOSE:To provide a thermal recording medium which demonstrates an excellent preservability and stability of a recorded image and does not allow waste settlement as a result of an improvement of preservability. CONSTITUTION:A thermal recording medium consists of a thermal recording layer containing colorless or pale basic dye and coloring agent provided on a support. The thermal recording layer contains at least, one type of polyvalent metal selected from among those of 2,2'-methylenebis(4,6-di-tert-butylphenyl) phosphate.

32. 发明专利

JPH04348991A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH04348991A
公开(公告)日：1992-12-03
申请号：JP18260691
申请日：1991-07-23
申请人： KANZAKI PAPER MFG CO LTD
发明人： TSUCHIDA TETSUO , ABE YUKIHIRO , MINAMI TAKEHIRO , ARAI NAOTO
IPC分类号： B41M5/327 , B41M5/30 , B41M5/333
摘要： PURPOSE:To enable an excellent coloring property, raw shelf life, and shelf life of a recording image to be obtained by a method wherein a specific fluorane derivative, alpha-naphthoeic acid and/or its zinc salt are combined. CONSTITUTION:Fluorane derivative as expressed by the formulas I-III are used as basic dye, and alpha-naphthoeic acid and/or its zinc salt are used as color agent. In the formulas, R1 and R3-R6 respectively indicate C1-C6 alkyl radical, and R2 indicates C1-C6 alkyl radical, C2-C6 alkoxyalkyl radical, cyclopentyl radical, cyclohexyl radical, tetrahydrofurfuryl radical or p-tolyl radical. Further, R1 and R2 together with adjacent nitrogen atom may form pyrrolidine ring or piperidine ring. Furthermore, X indicates methyl radical, and Y indicates chlorine atom, fluorine atom or trifluoromethyl radical, n indicates 0, or an integer of 1 to 2. Thereby, an excellent coloring property, raw shelf life, and shelf life of a recording image can be obtained.

33. 发明专利

JPH04299182A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH04299182A
公开(公告)日：1992-10-22
申请号：JP6443791
申请日：1991-03-28
申请人： KANZAKI PAPER MFG CO LTD
发明人： ARAI NAOTO , ISHIDA KATSUHIKO , MANDOU RITSUO
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/327
摘要： PURPOSE:To obtain a thermal recording material wherein the deterioration of brightness is small, even in the case of being exposed to such a hot condition as 90-100 deg.C, and being excellent in the light stability of a recorded image and white paper part. CONSTITUTION:A thermal recording material provided with a thermal recording layer containing a colorless or light-colored basic dye and a color-developing agent capable of developing a color at the time of coming into contact with said dye on a backing, in which recording material 3-diethylamino-7-(o- chlorophenylamino) fluorane and/or 3-di(n-butyl)amino-7-(o-chlorophenylamino) fluorane as the basic dye are contained in said thermal recording layer and further aromatic secondary amine age resistor and at least one sort selected from hindered phenol antioxidants represented by the following general formulae [chemical 1@9147/28} and [chemical 2] are used at the same time.

34. 发明专利

JPH04163187A THERMOSENSITIVE RECORDING BODY 失效
公开(公告)号：JPH04163187A
公开(公告)日：1992-06-08
申请号：JP28917690
申请日：1990-10-27
申请人： KANZAKI PAPER MFG CO LTD
发明人： ARAI NAOTO , KANDA NOBUO , TSUCHIDA TETSUO
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PURPOSE:To obtain a thermosensitive recording body that is well preservable in the raw when stored in an environment at high temperature by making a recording layer contain benzotriazole compound as sensitizer and at least one out of a specific salicylic acid derivative or its polyvalent metallic salt as coloring agent. CONSTITUTION:A recording layer is made to contain at least one out of salicyclic acid derivative expressed by a formula I or II, and polyvalent metallic salt of the same as a coloring agent, and to contain furthermore benzotriazole compound as a sensitizer. In the formulae, Ar stands for phenyl group, naphtyl group, and complex aromatic ring group, Q stands for ether linkage, or sulfonyl linkage, A stands for ether linkage, ester linkage, and amide linkage or alkylene group, or alylene group, X stands for hydrogen atom, alkyl group, alkoxyl group, nitro group, or halogen atom, and Y stands for hydrogen atom, alkyl group or halogen atom. (m) stands for integers 1-3 and (n) is an integer of 1-4.

35. 发明专利

JPH0410982A THERMAL RECORDING MEDIUM 失效
公开(公告)号：JPH0410982A
公开(公告)日：1992-01-16
申请号：JP11329990
申请日：1990-04-27
申请人： KANZAKI PAPER MFG CO LTD
发明人： ARAI NAOTO , WATANABE KAZUO
IPC分类号： B41M5/337 , B41M5/30 , B41M5/333
摘要： PURPOSE:To enhance recording sensitivity and the preservability of a recording image and to prevent the adhesion of refuse to a thermal head by using an antipyrine complex of zinc thiocyanate as a developer and together using a specific heat-meltable substance. CONSTITUTION:A recording layer containing a colorless or light-colored basic dye, a developer forming a color upon the contact with said dye and a heat- meltable substance is provided on a support and an antipyrine complex of zinc thiocyanate represented by formula [1] is constained as the developer and, as the heat-meltable substance, at least one compound selected from dibenzyl oxalate, 1-(2-methylphenoxy)-2-(4-methoxyphenoxy)ethane, 1-methylthio-4- benzyloxybenzene, phenyl 1-hydroxy-2-naphthoate and dibenzyl terephalate is contained. In this case, 50 - 400pts.wt. of the heat-meltable substance is pref. used per 100pts.wt. of the developer and 150 - 400pts.wt. of the developer can be used per 100pts.wt. of the basic dye.

36. 发明专利

JPH03230992A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH03230992A
公开(公告)日：1991-10-14
申请号：JP2688090
申请日：1990-02-06
申请人： KANZAKI PAPER MFG CO LTD
发明人： ARAI NAOTO , WATANABE KAZUO , KANDA NOBUO
IPC分类号： B41M5/327 , B41M5/30 , B41M5/333
摘要： PURPOSE:To reduce the lowering of whiteness with the elapse of time and to improve the fading due to a fluorescent pen by using a specific dye as a basic dye and using an antipyrine complex of zinc thiocyanate represented by formula (I). CONSTITUTION:2,2-bis{4-[6'-(N-cyclohexyl-N-methylamino)-3'- methylspiro[phthalide-3,9'-xanthene]-2'-ylamino]phenyl}propane is contained in a recording layer as a basic dye and an antipyrine complex of zinc thiocyanate represented by formula [l] is contained as a coupler. As a specific coupler, the antipyrine complex of zinc thiocyanate is used but other coupler can be together used within a range not preventing effect.

37. 发明专利

JPH03173677A THERMAL RECORDING BODY 失效
公开(公告)号：JPH03173677A
公开(公告)日：1991-07-26
申请号：JP31378289
申请日：1989-11-30
申请人： KANZAKI PAPER MFG CO LTD
发明人： KANDA NOBUO , ARAI NAOTO
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/327 , B41M5/333
摘要： PURPOSE:To improve whiteness under long term high temperature environment and image stability under high temperature and humidity by adding a compound shown by a specific general formula together with a specific basic dye and color developer. CONSTITUTION:In a heat sensitive recording body in which a heat sensitive recording layer, containing a colorless or faintly colored basic dye and a color developer contacting with the basic dye to develop color, is provided on a support, 3-di-n-buthylamino-6-methyl-7-phenylaminofluoran is added as the dye while 4, 4'-isopropylidenediphenol is added as the color developer and at least one type of compound, shown by formula 1, is further added. In the formula, R1, R2, R3 represent 1-4C alkyl groups respectively. At least one of R1, R2 is a tert-buthyl group. By such arrangement, a heat sensitive recording body having high whiteness, which is stable under long term high temperature environment, and excellent image stability under high temperature and himidity can be obtained.

38. 发明专利

JPH02239979A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH02239979A
公开(公告)日：1990-09-21
申请号：JP6256989
申请日：1989-03-14
申请人： KANZAKI PAPER MFG CO LTD
发明人： KANDA NOBUO , NOJIMA MASAHARU , ARAI NAOTO
IPC分类号： B41M5/337 , B41M5/26
摘要： PURPOSE:To keep excellent sensitizing effect and to effectively prevent the refuse adhesion phenomenon of a head by containing at least 1,2- diphenoxyethane and 1,2-bis(3-methylphenoxy)ethane in a thermal recording layer as heat-metable substances. CONSTITUTION:1,2-diphenoxyethane and 1,2-bis(3-methylphenoxy)ethane are contained in the thermal recording layer of a thermal recording material utilizing coupling reaction forming a color through the contact of a colorless-light- colored basic dye and a coupler as heat-meltable substances and the latter is used in an amount of 25-400% by wt. of the former. As the basic dye, 3di(n- butyl)amino-6-methyl-7-phenylaminofluorane is used. Further, the coupler is used in an amount of 100-700 pts.wt. per 100 pts.wt. of the basic dye. The use amount of the heat-meltable substance in the recording layer is 50-500 pts.wt. per 100 pts.wt. of the basic dye.

39. 发明专利

JPH0229380A THERMAL SENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JPH0229380A
公开(公告)日：1990-01-31
申请号：JP17991888
申请日：1988-07-18
申请人： KANZAKI PAPER MFG CO LTD
发明人： ARAI NAOTO , NOJIMA MASAHARU , KANDA NOBUO
IPC分类号： B41M5/337
摘要： PURPOSE:To stably record without fog or blocking phenomenon even in a high speed recording by incorporating chitin or its derivative in at least one of layers for forming a recording medium. CONSTITUTION:Chitin or its derivative is contained in at least one of layers for forming a recording medium. The chitin or its derivative is contained in at least one of various layers such as a heat sensitive recording layer, a support layer, and further a protective layer, an intermediate layer, a support rear face layer, etc., provided as required for basically forming the medium, and it is particularly effective to contain them in the rear face layer of the support. Specially, when a film or a synthetic sheet is used as the support, it is desired to contain the chitin derivative in the rear face layer of the support. The using quantity of the derivative is suitably adjusted in response to the type of the support, the content of the recording layer, and further circumstances such as layer to be contained, and not particularly limited. Generally, it is approx. 0.1-5g/m and more preferably 0.2-2g/m .

40. 发明专利

JPH021037B2 失效
公开(公告)号：JPH021037B2
公开(公告)日：1990-01-10
申请号：JP10889282
申请日：1982-06-22
申请人： KANZAKI PAPER MFG CO LTD
发明人： HAYASHI RYUZO , SUZUKI TOSHITAKE , ARAI NAOTO
IPC分类号： B41M5/333

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