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公开(公告)号：JP2003127539A
公开(公告)日：2003-05-08
申请号：JP2001325459
申请日：2001-10-23
发明人： HIZADATE YOSHIHARU
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material which has less base blushing while having a high thermal respondency, and is excellent in moisture- heat-resistant preservability and heat-resistant preservability of a colored image section. SOLUTION: For this heat-sensitive recording material, on a supporting body, a heat-sensitive recording layer is provided. In this case, the heat-sensitive recording layer contains a dye precursor and an electron-accepting compound. The dye precursor is electron-donative, and normally colorless or slightly tinted. The electron-accepting compound reacts when being heated, and makes the dye precursor develop a color. In the heat-sensitive recording layer, an alkyl benzene sulfonate derivative, and/or an alkyl sulfonate derivative is included by 0.5 to 10 mass% of the total solid portion.
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公开(公告)号：JPH09300820A
公开(公告)日：1997-11-25
申请号：JP12148196
申请日：1996-05-16
摘要： PROBLEM TO BE SOLVED: To make possible formation of an image with a favorable contrast and improve low-temperature erasability by using at least one kind of onium compound which is expressed by a specific formula as a decoloration accelerator to be contained in a reversible thermal recording material. SOLUTION: In a reversible thermal recording material containing usually a colorless or a light-colored dye precursor and a reversible developer which causes a reversible tonal change in the dye precursor due to a difference in cooling speed after heating, at least one kind of onium compound which is expressed by formula I or II is contained. In formulae I and II, R to R and R to R can be same or different and indicate an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an aryl group, and a heterocyclic residue, and optional two groups which are chosen from among R to R and R to R can have an annular structure through mutual linkage. X and Y each represent an anion.
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公开(公告)号：JP2002019301A
公开(公告)日：2002-01-23
申请号：JP2000203239
申请日：2000-07-05
发明人： HIZADATE YOSHIHARU , KATO TAKAHISA
摘要： PROBLEM TO BE SOLVED: To provide a thermosensitive recording material having excellent storage stability of an image even when the image is exposed with a high temperature condition of 80 deg.C higher for a long time while having high heat responsiveness and color developing density. SOLUTION: In the thermosensitive recording material comprising a thermosensitive recording layer containing an electron donative normally colorless or pale dye precursor and an electron acceptive compound for color developing the precursor by reacting at a heating time, as the electron acceptive compound, at least one type of a benzene sulfonamide derivative of the formula 1 is contained, and a triphenylmethane derivative of the formula 2 is contained. As the benzene sulfonamide derivative, an N-(2-hydroxyphenyl)-p- toluenesulfoneamide or an N-(2-hydroxyphenyl)benzenesulfonamide is used. In the formula 1, a compound in which R6 to R10 are each hydrogen is used.
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公开(公告)号：JP2002011963A
公开(公告)日：2002-01-15
申请号：JP2000196022
申请日：2000-06-29
发明人： HIZADATE YOSHIHARU , KATO TAKAHISA
摘要： PROBLEM TO BE SOLVED: To provide a heat sensitive recording material particularly having excellent heat response and processing suitability. SOLUTION: In the heat sensitive recording material comprising an undercoating layer containing a pigment and an adhesive as main components, and a heat sensitive recording layer containing an electron donative normally colorless or pale dye precursor and an electron acceptive compound for color developing the precursor in reaction at a heating time, the undercoating layer contains as the pigment an organic pigment having a through hole, organic hollow particles each having an opening or organic hollow particles each not substantially having an opening, and the recording layer contains a benzenesulfoneamide derivative represented by formula 1 (wherein R1 to R9 are each a hydrogen atom, alkyl group, alkoxyl group, alkenyl group, aralkyl group, halogen atom or aryl group, and arbitrary two groups selected from R1 to R5, R6 to R9 may be coupled to each other to form a ring. R10 is a hydrogen atom, aralkyl group, alkenyl group, aralkyl group or aryl group).
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公开(公告)号：JP2001001647A
公开(公告)日：2001-01-09
申请号：JP17266799
申请日：1999-06-18
发明人： HIZADATE YOSHIHARU , KATO TAKAHISA
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material wherein the thermal response, and the storage stability of an image part are excellent. SOLUTION: In this heat-sensitive recording material containing a normally colorless or slightly colored dye precursor having electron donating property, and an electron accepting compound which develops a color of the dye precursor by reacting when being heated, as the electron accepting compound, 4,41- dihydroxydiphenylsulfone, and other diphenylsulfone derivative represented by a formula (in the formula, R1 represents a hydrogen atom, an alkyl group or the like, R2 and R3 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group or the like, and n and m each are an integer of 1 to 4.), are jointly used.
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公开(公告)号：JPH07214907A
公开(公告)日：1995-08-15
申请号：JP1031094
申请日：1994-02-01
摘要： PURPOSE:To obtain a recording material capable of forming and erasing an image in good contrast and capable of holding an image stable with the elapse of time by adding an electron donating dye precursor and an electron acceptive compd. represented by a specific formula generating a reversible hue change by heating. CONSTITUTION:A reversible thermal recording material is obtained by providing a thermal recording layer based on a usually colorless or light-colored electron donating dye precursor an electron acceptive coupler generating a reversible hue change, that is, color development and erasure in the dye precursor by heating on a support. In this case, as the electron acceptive coupler, a compd. represented by general formula (m is an integer of 1-2, n is an integer of 0-2, X is an -NHCO-group, a -CONH-group, an -NHCONH-group or an -NHCOCONH-group, and R is an aliphatic hydrocarbon. It is pref. that R has a larger number of carbon atoms and a 6-22C aliphatic hydrocarbon group is pref.) is used.
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公开(公告)号：JP2004025539A
公开(公告)日：2004-01-29
申请号：JP2002183089
申请日：2002-06-24
发明人： HIZADATE YOSHIHARU
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material which shows high heat response and outstanding image stability under normal environments and is recycled by decoloring through simple procedures. SOLUTION: In the heat-sensitive recording material containing an electron-donative dye precursor which is normally colorless or pale-colored and an electron-receptive compound which develops a color in the dye precursor by thermal reaction, a specific 2-position substituted phenol derivative compound is added as the electron-receptive compound. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2002192838A
公开(公告)日：2002-07-10
申请号：JP2000391765
申请日：2000-12-25
发明人： HIZADATE YOSHIHARU
摘要： PROBLEM TO BE SOLVED: To provide a heat sensitive recording material, which has a favorable heat resistant preservability of a colored image part and of a non-colored ground part though having high heat response properties and color developing density and by which the amount of scum depositing on the heat sensitive head of a heat sensitive printer is a few and consequently no printing difficulty develops even during a long distance printing. SOLUTION: In this heat sensitive recording material, in which a heat sensitive layer including an electron donable normally colorless or light-colored dye precursor and an electron acceptable compound, which forms color in the dye precursor through the reaction therewith under heat, the electron acceptable compound includes at least one kind of compounds selected from the group consisting of at least one kind of specified benzene sulfonamide derivatives, a 3-dibutylamino-6-methyl-7-anilinofluoran, 3-diethylamino-6-methyl-7-(2-toluidino) fluoran, 3-(N-methyl-N-propyl)amino-6-methyl-7-anilinofluoran or the like.
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公开(公告)号：JP2002096562A
公开(公告)日：2002-04-02
申请号：JP2000287196
申请日：2000-09-21
发明人： HIZADATE YOSHIHARU
摘要： PROBLEM TO BE SOLVED: To provide a thermal recording material which is excellent in the heat-resistant shelf stability of a colored image part, while having high heat- responsiveness and coloring density, and which causes little abrasion of a thermal printer and sticking of tailings thereto and is excellent in the yellowing- resistant characteristics of a ground part. SOLUTION: The thermal recording material is provided with a thermal recording layer that contains an electron donating and normally colorless or light-colored dye precursor and electron accepting compounds making the dye precursor color in reaction in heating. As the electron accepting compounds, at least one kind of specific benzene sulfonamide derivative, amorphous silica and at least one or more kinds of inorganic pigments selected from aluminum hydroxide or kaolin are contained.
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公开(公告)号：JP2001113839A
公开(公告)日：2001-04-24
申请号：JP29933899
申请日：1999-10-21
发明人： KATO TAKAHISA , HIZADATE YOSHIHARU
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive recording material which shows reliable thermal response, high saturation density and outstanding image retention properties. SOLUTION: A normally colorless or pale-colored electron-donative dye precursor, a dyphenylsulfone derivative represented by formula 1 as an electron- receptive compound and an amido compound represented by formula [II] as a thermoplastic compound, are added to the surface of a support. In the formula [1], [X and Y are a 1-12C saturated or unsaturated hydrocarbon group or a 1-12C hydrocarbon group which may have an ether linkage and R1-R6 are each a halogen atom, a 1-6C alkyl group or a 1-6C alkenyl group. Further, m, n, p, q, r, t are each an integer of 0-4 and a is an integer of 0-10]. [R8 is an alkyl group, an alkylcarbonly group or an alkyl carbonyl alkyl group; R9 is a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkoxy group or a phenylsulfonyl group; and h, i are each an integer of 0.5].
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