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1. 发明专利

JP2003211854A HEAT-SENSITIVE RECORDING MEDIUM 审中-公开
公开(公告)号：JP2003211854A
公开(公告)日：2003-07-30
申请号：JP2002008603
申请日：2002-01-17
申请人： JUJO PAPER CO LTD
发明人： OTOHATA TAKANORI , FUKUCHI CHUICHI
IPC分类号： B41M5/333 , B41M5/337 , B41M5/30 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive recording medium which has an excellent water resistance, good printability and printing feedability, and which has small substrate coloring of a white part when the medium is held in a high moisture environment. SOLUTION: The heat-sensitive recording medium comprises a heat-sensitive recording layer containing a colorless or pale basic leuco dye and a developer as main ingredients on a support. In this medium, the recording layer contains an acrylic emulsion and a colloidal silica, and further contains a diphenylsulphone crosslinked compound as the developer. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002200846A THERMAL RECORDING MEDIUM 失效
公开(公告)号：JP2002200846A
公开(公告)日：2002-07-16
申请号：JP2000401909
申请日：2000-12-28
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , NATSUI JUNPEI , KANEKO TOSHIO
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To provide a thermal recording medium which shows outstanding image conservation properties such as resistance to plasticizer and high recording sensitivity and also is almost free from the deposition of scums to a thermal head or a sticking phenomenon and further, is highly mar-resistant. SOLUTION: The thermal recording medium has an intermediate layer containing a polymer particle with an opening part which is obtained by cutting a part of the polymer particle on the plane and comprises a developer containing at least one kind of a urea-urethane compound represented by the formula (1).

3. 发明专利

JP2001310559A THERMAL RECORDING MEDIUM 失效
公开(公告)号：JP2001310559A
公开(公告)日：2001-11-06
申请号：JP2000129765
申请日：2000-04-28
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , IMAI DAISUKE , KIMURA YOSHIHIDE
IPC分类号： B41M5/28 , B41M5/26 , B41M5/30 , B41M5/42
摘要： PROBLEM TO BE SOLVED: To provide a thermal recording medium having an excellent gloss and an improved writing property. SOLUTION: The thermal recording medium provides a thermal recording layer containing a colorless basic dye and an organic developer as main components on a support and a protective layer containing an inorganic pigment and a binder as main components on the thermal recording layer. The thermal recording medium has a coefficient of static friction of 0.550 or above and an amplitude of below 0.020 as specified in J.TAPPI No. 30-79, and a specular glossiness (incident angle and acceptance angle are 75 degrees) of 50% or more as specified in JIS-P-8142.

4. 发明专利

JP2001113827A MULTICOLOR HEAT-SENSITIVE RECORDING BODY 失效
公开(公告)号：JP2001113827A
公开(公告)日：2001-04-24
申请号：JP29394799
申请日：1999-10-15
申请人： JUJO PAPER CO LTD
发明人： HAMADA KAORU , FUKUCHI CHUICHI , MIDORIKAWA YOSHIMI , KIMURA YOSHIHIDE
IPC分类号： B41M5/34 , B41M5/26 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To provide a multicolor heat-sensitive recording body obtaining a recorded image of high recording density and the sharp tone and keeping the clear color separating properties even under the high temperature atmosphere. SOLUTION: At least one or more high temperature coloring layers containing a dye precursor and an organic developer reacted with the dye precursor under heating and at least one or more low temperature coloring layers coloring a color tone different from that of the high temperature coloring layer are formed successively on a substrate of a multicolor heat-sensitive recording body, and a 3- [(phenylamino)carbonyl]amino)benzene sulfoneamide as the organic developer for the high temperature coloring layer is contained in the multicolor heat-sensitive recording body.

5. 发明专利

JP2000263947A HEAT-SENSITIVE RECORDING BODY 失效
公开(公告)号：JP2000263947A
公开(公告)日：2000-09-26
申请号：JP7121599
申请日：1999-03-17
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , SUMIKAWA NAOMI , OGAWA HIDENORI , IMAI DAISUKE , SATO REIKO , KIMURA YOSHIHIDE
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To suppress a coloring of the base color, and at the same time, suppress the decoloring of an image, and improve the image preservation property by containing a diphenyl sulfone crosslinking type compound and a polyhydric hydroxy aromatic compound which are represented by respective specified structural formulas, and a higher fatty acid metal salt wherein the number of carbon atoms is kept in a specified numeral value range, in a heat-sensitive recording layer. SOLUTION: A heat-sensitive layer contains a diphenyl sulfone crossliking type compound represented by formula I (in the formula, X and Y each represent a saturated or unsaturated hydrocarbon group of which the number of carbon atoms is 1-12, or formula III (in the formula, R represents a methylene group or an ethylene group) or formula IV (in the formula, T represents a hydrogen atom or an alkyl group of C1-C4). R1-R6 each represent a halogen atom, an alkyl group of C1-C6, or an alkenyl group, m, n, p, q, r and t each are an integer of 0-4, and (a) is an integer of 0-10) as an organic color developer, a higher fatty acid metal salt of which the number of carbon atoms is 16-35 as an electron acceptor, and a polyhybric hydroxyl aromatic compound which is represented by formula II (in the formula, R represents an alkyl group of C18-C35, and n is an integer of 2 or 3) as an electron donor.

6. 发明专利

JP2000135868A HEAT-SENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JP2000135868A
公开(公告)日：2000-05-16
申请号：JP31161098
申请日：1998-11-02
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , KIMURA YOSHIHIDE , TSUZUKI YUJI , NAGAI TOMOAKI , WAKITA YUTAKA
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To improve image storage stability and heat resistance by using a specific diphenylsulfone crosslinking type compound as an organic developer, also using an aromatic compound having a specific diphenylsulfone skeleton and further using a compound having a specific sulfonamide group or a diphenylsulfone skeleton. SOLUTION: A heat-sensitive recording layer contains a diphenylsulfone crosslinking type compound represented by formula I (wherein 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 a developer, 0.01 to 0.9 pt.wt. of a compound represented by formula II and 0.01 to 2 pts.wt. of a compound represented by formula III or IV to 1 pt.wt. of the compound represented by the formula I.

7. 发明专利

JP2000135863A HEAT-SENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JP2000135863A
公开(公告)日：2000-05-16
申请号：JP31160998
申请日：1998-11-02
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , TSUZUKI YUJI , KIMURA YOSHIHIDE , SATO REIKO
IPC分类号： B41M5/333 , B41M5/30
摘要： PROBLEM TO BE SOLVED: To improve image storage stability and heat resistance by using a specific diphenylsulfone crosslinking type compound as an organic developer and also using an aromatic compound having a specific diphenylsulfone skeleton. SOLUTION: A heat-sensitive color developing layer contains a diphenylsulfone crosslinking type compound represented by formula I (X and Y are each 1-12C saturated or unsaturated hydrocarbon group which may be different, may be linear or branched or may have an ether bond, R1 to R6 are each independently 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) and 0.01 to 0.9 pt.wt. of a compound represented by formula II (R7 is unsubstituted or substituted 1-4C alkyl group, aralkyl group, phenyl group or a hydrogen atom) to 1 pt.wt. of the developer represented by the formula I.

8. 发明专利

JPH09216461A THERMOSENSITIVE RECORDING MEDIUM 失效
公开(公告)号：JPH09216461A
公开(公告)日：1997-08-19
申请号：JP30982596
申请日：1996-11-21
申请人： JUJO PAPER CO LTD
发明人： FUKUCHI CHUICHI , HAMADA KAORU , NAGAI TOMOAKI , KUDO NOBUHIRO , SEKINE AKIO
IPC分类号： B41M5/337 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To greatly the improve the, image stability of a thermosensitive recording medium or particularly the stability of plasticizer by incorporating specific amount of specific aminobenzenesulfonamide derivative as the stabilizer in the thermal coloring layer of the medium, and incorporating specific amount of specific methylol fatty amide therein. SOLUTION: In the thermosensitive recording medium having a thermal coloring layer containing colorless or pale basic dye and organic developer as main component, aminobenzenesulfonamide derivative represented by a formula I is contained at the ratio of 0.01 to 0.9 part to one part of the developer as the stabilizer in a thermal recording coloring layer. Further, at least one type of methylol fatty amide represented by a formula II is contained at the ratio of 0.01 to 2 part to the one part of developer. In the formula I, X is oxygen atom or sulfur atom, R is phenyl group or naphthyl group, Z is 1-6C lower alkyl group, n is integer of 0 to 4, p is integer of 1 to 5, (n+p

9. 发明专利

JPH0976633A THERMOSENSITIVE RECORDING SHEET 失效
公开(公告)号：JPH0976633A
公开(公告)日：1997-03-25
申请号：JP24015895
申请日：1995-09-19
申请人： JUJO PAPER CO LTD
发明人： HAMADA KAORU , FUKUCHI CHUICHI , MIDORIKAWA YOSHIMI , TAKEBAYASHI KUNIAKI , WAKITA YUTAKA , NAGAI TOMOAKI , SEKINE AKIO , KUDO NOBUHIRO
IPC分类号： B41M5/337 , B41M5/26
摘要： PROBLEM TO BE SOLVED: To improve the image stability relative to a plasticizer by incorporating at a specific rate an aminobenzenesulfonamide derivative and a sufonamide compound relative to the developer in thermosensitive coupling layer as an stabilizer. SOLUTION: This thermosensitive recording sheet has a thermosensitive coupling layer containing as a main component achromatic or pale basic achromatic dyes and organic developer on the base material, wherein the thermosensitive coupling layer contains as a stabilizer an aminobenzene sulfonamide derivative of 0.01-0.9 pts relative to one part of a developer as represented in formula I, and a sulfonamide compound of 0.01-2 pts to one part of the developer as represented in formula II. In the formula I, X represents an oxygen atom or sulfur atom, Y, an lower alkyl group with a carbon number of 1-6 or electron attractive group, (m) is an integer of 0-4, R represents a phenyl group or the like. In the formula II, Z represents a lower alkyl group with 1-6C or an electron attractive group, and (n) is an integer of 0-2.

10. 发明专利

JPH0733747A NOVEL ISOPHTHALIC ACID DERIVATIVE AND THERMALLY RECORDING MEDIUM USING THE SAME 失效
公开(公告)号：JPH0733747A
公开(公告)日：1995-02-03
申请号：JP18284393
申请日：1993-07-23
申请人： JUJO PAPER CO LTD , YOSHITOMI PHARMACEUTICAL
发明人： MINAMI TOSHIAKI , FUKUCHI CHUICHI , KINISHI RYOICHI , MIZUKAMI RYUZO
IPC分类号： B41M5/337 , B41M5/26 , C07D237/32
摘要： PURPOSE:To obtain a new subject derivative which is an isophthaloylbis(phthalazone) and useful in thermally recording sheets, giving high-sensitivity and stabilized images as a stabilizer for the thermally color-developing layer containing a basic colorless dye and an organic color-developing agent as main components. CONSTITUTION:1-phthalazone, triethylamine and N,N-dimethylacetamide are charged in a flask equipped with a thermometer, a stirrer and a dropping funnel and the flask content is kept at -10 to +5 deg.C and isophthaloyl dichloride is added dropwise and the reaction is carried out at this temperature for 6 hours. Then, water is poured into the reaction mixture to precipitate crystals and the crystals are sucked by filtration, the wet crystals are washed with water and ethanol, then dried by sucking to give the objective 2,2'-isophthaloyl bis(phthalazone) of the formula. The product is added as stabilizer to the thermally color-developing layer containing a basic colorless dye and an organic color- developing agent as main components of, coated on the substrate to give a thermally recording sheet having high sensitivity and forming high-stability images.

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