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1. 发明专利

JP2001277724A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JP2001277724A
公开(公告)日：2001-10-10
申请号：JP2000096736
申请日：2000-03-31
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , IMAI DAISUKE , OGAWA HIDENORI , KIMURA YOSHIHIDE
IPC分类号： B41M5/337 , B41M5/26 , B41M5/28 , B41M5/30 , B41M5/42
摘要： PROBLEM TO BE SOLVED: To provide a thermal recording material which is excellent in retention stability and thermal breaking resistance. SOLUTION: The thermal recording material is provided wherein a protective layer containing acrylic ester copolymer and colloidal silica by a ratio of 8/2 to 7/3 is provided on a thermal recording layer provided on a base material.

2. 发明专利

JP2000343833A HEAT SENSITIVE RECORDING SHEET 失效
公开(公告)号：JP2000343833A
公开(公告)日：2000-12-12
申请号：JP15640699
申请日：1999-06-03
申请人： JUJO PAPER CO LTD
发明人： MIDORIKAWA YOSHIMI , TSUZUKI YUJI , HAMADA KAORU , KIMURA YOSHIHIDE
IPC分类号： B41M5/333 , B41M5/26 , B41M5/28 , B41M5/30
摘要： PROBLEM TO BE SOLVED: To provide a heat sensitive recording sheet having heat resistance of certain degree capable of thermally laminating without decreasing color developing capability even by using a support containing a waste paper pulp. SOLUTION: The heat sensitive recording sheet comprises a support containing waste paper pulp and a compound represented by the formula as an organic developer, wherein X is an oxygen atom or a sulfur atom, R is a nonsubstituted or substituted phenyl group, a naphthyl group, an aralkyl group, a 1-6C lower alkyl group, a 3-6C cycloalkyl group, or 2-6C lower alkenyl group, Z is a 1-6C lower alkyl group or an electron attracting group, and n is an integer of 0 to 4.

3. 发明专利

JP2000335113A THERMAL RECORDING BODY 失效
公开(公告)号：JP2000335113A
公开(公告)日：2000-12-05
申请号：JP15159799
申请日：1999-05-31
申请人： JUJO PAPER CO LTD
发明人： MIDORIKAWA YOSHIMI , SUMIKAWA NAOMI , HAMADA KAORU , KIMURA YOSHIHIDE
IPC分类号： B41M5/333 , B41M5/26 , B41M5/30 , B41M5/327 , B41M5/337
摘要： PROBLEM TO BE SOLVED: To obtain excellent color-developing sensitivity, whiteness, etc., by making a thermal recording body contain 4-benzyloxy-4'-diphenyl sulfone, an epoxy resin or a crosslinked compound in addition to a dihydroxydiphenyl sulfone compound expressed by a specific formula, basic colorless dye and a sulfonamide compound. SOLUTION: A thermosensible color-developing layer contains at least one kind of dihydroxydiphenyl sulfone compound expressed by the formula, as an organic developer, and 3-di-n-pentylamino-6-methyl-7-anilinofluoran as basic colorless dye. In the formula, R1 and R2 each denote 1-8C alkyl or alkenyl or halogen atoms and (a) and (b) integers of 0-3. It contains at least one kind of sulfonamide compound and, moreover, at least one kind of 4-benzyloxy-4'-(2,3- epoxy-2-methylproxy) diphenyl sulfone, an epoxy resin and a crosslinked compound of diphenyl sulfone.

4. 发明专利

JP2000135867A HEAT-SENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JP2000135867A
公开(公告)日：2000-05-16
申请号：JP31160898
申请日：1998-11-02
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , TSUZUKI YUJI , KIMURA YOSHIHIDE , NAGAI TOMOAKI , WAKITA YUTAKA
IPC分类号： B41M5/333 , B41M5/337 , B41M5/30 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To improve recording sensitivity by using a specific diphenylsulfone crosslinking type compound as an organic developer and using an aromatic compound having a specific aminosulfonyl group as a sensitizer. SOLUTION: A heat-sensitive color developing layer contains a diphenylsulfone crosslinking type compound represented by formula I (X and Y are each linear or branched 1-12C saturated or unsaturated hydrocarbon group which may be different and may have an ether bond, R1 to R6 are each independently a halogen atom, 1-6C alkyl group, or alkenyl group, m, n, p, q, r and t are each an integer of 0 to 4, and a is an integer of 1 to 10) as an organic developer, and 0.01 to 2 pts. of at least one type of a compound represented by formula II as a sensitizer (R7 is a 1-6C alkyl group or an electron attractive group, and u is an integer of 0 to 2.) to 1 pt. of the developer represented by the formula I.

5. 发明专利

JP2000079758A THERMAL RECORDING BODY 失效
公开(公告)号：JP2000079758A
公开(公告)日：2000-03-21
申请号：JP24456898
申请日：1998-08-31
申请人： JUJO PAPER CO LTD
发明人： MIDORIKAWA YOSHIMI , HAMADA KAORU , KIMURA YOSHIHIDE , NAGAI TOMOAKI
IPC分类号： B41M5/28 , B41M5/30 , B41M5/323 , B41M5/327 , B41M5/333 , B41M5/337 , B41M5/40 , B41M5/42 , B41M5/44 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To develop a color of adzuki bean or a wine red by specifying color difference value a* and value b* of a color-developing image, which are specified in JIS-Z-8729. SOLUTION: A color difference value a* is a parameter to represent a green tone, and shows that the green tone becomes stronger a becoming large in minus, and the green tone becomes weaker as approaching zero, and a red tone becomes stronger as becoming larger in plus. Also, a color difference b* is a parameter to represent a blue tone, and shows that the blue tone becomes stronger as becoming larger in minus, and the blue tone becomes weaker as approaching zero, and a yellow tone becomes stronger as becoming larger in plus. This thermal recording body, the color difference value a* of a color developing image is 0-50, and the value b* is -15-10, and a required tone of adzuki bean color or a wine red color can be obtained. In addition, the color difference value a* is preferably set at 10-50, and the value b* is set at -15-0 to obtain a clearer tone, and more preferably, the color difference value a* is in a range of 15-45, and the value b* is in a range of -10-0.

6. 发明专利

JP2000015929A THERMAL RECORDING PAPER 失效
公开(公告)号：JP2000015929A
公开(公告)日：2000-01-18
申请号：JP18350398
申请日：1998-06-30
申请人： JUJO PAPER CO LTD
发明人： KANEKO TOSHIO , TSUZUKI YUJI , NAGAI TOMOAKI , MIDORIKAWA YOSHIMI , HAMADA KAORU , SATO REIKO
IPC分类号： B41M5/28 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To control lowering of the coloring ability of thermal recording paper, and enhance its recording sensitivity characteristic by forming a support body from old paper, and employing 4-hydroxy-4'-butoxydiphenylsulfone in an organic developer in thermal recording paper having a thermal recording layer provided on the support body. SOLUTION: A thermal recording paper is made usually by coating, on a support body such as paper, coat liquid consisting principally of an achromatic dye and an organic developer such as a phenol substance. In this case, employed for the support body is a paper board containing old paper, and 4-hydroxy-4'- butoxydiphenylsulfone is used for the organic developer. Also, the basic achromatic dye is not limited particularly; however, there are given preferably a triphenylmethane, fluoran, azaphthalide, fluorene system, or the like, and coating liquid is prepared by using a 1-8 pts. filling agent to a 1 pts. basic achromatic dye.

7. 发明专利

JPH11291636A THERMOSENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JPH11291636A
公开(公告)日：1999-10-26
申请号：JP10274698
申请日：1998-04-14
申请人： JUJO PAPER CO LTD
发明人： WAKITA YUTAKA , NAGAI TOMOAKI , HAMADA KAORU , SUMIKAWA NAOMI
IPC分类号： B41M5/333 , B41M5/30
摘要： PROBLEM TO BE SOLVED: To obtain a thermosensitive recording medium having a high heat resistance and an excellent plasticizer resistance in a recording image part and a ground color part by adopting a compound represented by a specific formula as a developer and incorporating a specific ratio of a glyoxal to 1 pt. of the developer in the recording layer. SOLUTION: 0.08 to 0.35 pt. of a glyoxal is contained in 1 pt. of a developer represented by a formula (wherein X is an oxygen atom or a sulfur atom, R is an unsubstituted or substitued phenyl group, naphthyl group, aralkyl group, 1-6C lower alkyl group, 3-6C cycloalkyl group or 2-6C lower alkenyl group, Z is 1-6C lower alkyl group or an electron-attractive group, n is an integer of 0 to 4, p is an integer of 1 to 5, wherein it satisfies (n+P

8. 发明专利

JPH11286173A THERMAL RECORDING MEDIUM 失效
公开(公告)号：JPH11286173A
公开(公告)日：1999-10-19
申请号：JP8997998
申请日：1998-04-02
申请人： JUJO PAPER CO LTD
发明人： NAGAI TOMOAKI , HAMADA KAORU , WAKITA YUTAKA , FUKUCHI CHUICHI , SUMIKAWA NAOMI
IPC分类号： B41M5/337 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To enhance the fineness of a recording image part and the fastness of a coloring agent by containing a molecular level admixture of o- toluenesulfonamide and p-toluenesulfonamide in a thermal coloring layer in a thermal recording body in which a thermal recording layer containing as main components a basic achromatic dye and an organic developing agent is provided on a carrier. SOLUTION: The thermal recording body is provided on a carrier with a thermal coloring layer containing main components a basic chromatic dye and an organic developing agent, in which a molecular level admixture of o- toluenesulfonamide and p-toluenesulfonamide in a thermal coloring layer. This avoids a powdering phenomenon being prone to occur at the time of using an intensifier in the imaging part, thus enhancing the stability in the recording part under high humidity. A blending weight ratio of o-toluensulfonamide to p-toluenesulfonamide used is made 35:65-45:55, and a molecular level admixture of o-toluenesulfonamide and p-toluenesulfonamide is contained at a rate of 0.01-2 pts. to an organic developer of 1 pts.

9. 发明专利

JPH11268414A THERMAL RECORDING BODY 失效
公开(公告)号：JPH11268414A
公开(公告)日：1999-10-05
申请号：JP7393498
申请日：1998-03-23
申请人： JUJO PAPER CO LTD
发明人： SUMIKAWA NAOMI , NAGAI TOMOAKI , HAMADA KAORU , WAKITA YUTAKA , OHASHI REIJI , NAKANO TOMOYUKI
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To obtain an excellent preservability of images, avoid the adherence of residue to a thermal head or the occurrence of sticking, and also obtain the fine stability of ground color against light or heat by containing a UV ray absorbing agent in a undercoating layer and/or thermal recording layer, a UV ray interrupting agent in the thermal recording layer and/or a protection layer, and fluorescent dye in the protection layer, and further containing a polyurea compound in the thermal recording layer. SOLUTION: The undercoating layer is formed by applying on the carrier liquid with a UV ray absorbing agent dispersed with a binder and filler. As a dye precursor and developer, a polyurea compound having a repetition unit of formula I or formula II is mixed, and a UV ray interrupting agent, a UV ray absorbing agent, a dispersant, a filler, or the like are added thereto before forming the coating liquid of a thermal recording layer. In addition, the coating liquid of a protection layer is prepared, which contains a fluorescent dye, a UV ray interrupting agent as required, a water soluble polymer a filler, or the like. In the formula I, A expresses a bivalent group, and in the formula II, R , R show a hydrogen atom in any one of them, and the other shows a methyl group, and A expresses a bivalent group.

10. 发明专利

JPH11245524A HEAT-SENSITIVE RECORDING BODY 失效
公开(公告)号：JPH11245524A
公开(公告)日：1999-09-14
申请号：JP5357898
申请日：1998-03-05
申请人： JUJO PAPER CO LTD
发明人： HAMADA KAORU , NAGAI TOMOAKI , WAKITA YUTAKA , SUMIKAWA NAOMI
IPC分类号： B41M5/333 , B41M5/26 , B41M5/30 , B41M5/337
摘要： PROBLEM TO BE SOLVED: To drastically improve the stability for a plasticizer, of a heat-sensitive recording body by a method wherein a color developing agent which develops a color by reacting with a dye precursor provided on a recording layer, is prepared by adding 3-(phenyl carbamoyl sulfamoyl)carbanilide, and also, a specified sulfonamide compound. SOLUTION: On a supporting body, a heat-sensitive coloring layer containing a basic colorless dye, and an organic color developer which develops a color by reacting with the basic colorless dye, as the major components, is provided. In this case, the developer is at least one kind of a compound which is represented by formula I, and also, contains at least one kind of a sulfonamide compound which is represented by formula II. In the formulas, R1 -R4 indicate hydrogen atom or the like, R1 and R2 , or R3 and R4 may form an aromatic ring by combining with each other, and X, Y indicate oxygen atom or the like, Z indicates a lower alkyl group or the like, and (n) indicates an integer of 0-2. Then, the compound which is represented by the formula I can be synthetized by making 3-aminobenzene sulfonamide and an isocyanate compound or the like react with each other.

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