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51. 发明专利

JPH0387286A RECORDING MATERIAL 失效
公开(公告)号：JPH0387286A
公开(公告)日：1991-04-12
申请号：JP19603389
申请日：1989-07-28
申请人： FUJI PHOTO FILM CO LTD
发明人： YANAGIHARA NAOTO , IWAKURA KEN , KAWAKAMI HIROSHI , GOTO YASUTOMO
IPC分类号： B41M5/337 , B41M5/124 , B41M5/132 , B41M5/26
摘要： PURPOSE:To improve color forming properties by using an electron donating leuco dye, an electron acceptive compound and 4-chlorobenzyl-4'-ethoxyphenyl ether having an m.p. of predetermined temp. or higher. CONSTITUTION:An electron donating leuco dye, an electron acceptive compound and 4-chlorobenzyl-4'-ethoxyphenyl ether having an m.p. of 89.0 deg.C or higher are used. As the electron donating leuco dye, there are various compounds such as a triphenylmethanephthalide compound or a fluorane compound. As the electron acceptive compound, a phenol derivative or a metal salt of aromatic carboxylic acid is used. The use amount of 4-chlorobenzyl-4'-ethoxyphenyl ether is different according to the kind of a recording material but 0.05 - 2.0g/m generally. The electron donating leuco dye, the electron acceptive compound and 4-chlorobenzyl-4'-ethoxyphenyl ether are ground and dispersed in a dispersing medium until a particle size is reduced to 10mum or less. pref., 3mum or less before use.

52. 发明专利

JPH0336090A PREPARATION OF THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH0336090A
公开(公告)日：1991-02-15
申请号：JP17241889
申请日：1989-07-04
申请人： FUJI PHOTO FILM CO LTD
发明人： AZUMA SHUNSAKU , YANAGIHARA NAOTO , KAWAKAMI HIROSHI
IPC分类号： B41M5/337 , B41M5/26
摘要： PURPOSE:To realize a thermal recording material having high sensitivity by using a compound represented by a specific formula in a state dispersed in water along with alkali metal alkylsulfosuccinate and/or polycarboxylate and/or polyvinyl alcohol with a polymerization degree of 1,000 or less. CONSTITUTION:A compound represented by formula (wherein R1 - R4 are a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom) is dispersed in a ball mill for 24hr, for example, along with an aqueous solution of polyvinyl alcohol (polymerization degree : 500) and sodium 4-methylpentyl-sulfosuccinate and an aqueous solution of sodium polycarboxylate to obtain a dispersion. An electron donating colorless dye dispersion and an electron acceptive compound dispersion are mixed with said dispersion and a zinc stearate emulsion is further added to the dispersion to obtain a thermal color forming layer coating solution. This coating solution is applied to fine paper using a coating bar and, after drying, calender treatment is applied to the coating layer to obtain a thermal recording material.

53. 发明专利

JPH0276788A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH0276788A
公开(公告)日：1990-03-16
申请号：JP23059288
申请日：1988-09-14
申请人： FUJI PHOTO FILM CO LTD
发明人： HAYASHI TAKAYUKI , IWAKURA KEN , YANAGIHARA NAOTO , KAWAKAMI HIROSHI
IPC分类号： B41M5/28 , B41M5/30 , B41M5/337
摘要： PURPOSE:To obtain a thermal recording material with high sensitivity, favorable shelf stability, and good head matching properties by providing a thermal color- forming layer containing a specific ether compound on a substrate having an oil absorptiveness of 10 sec. or less as specified by JIS-P8130. CONSTITUTION:In a thermal recording material mainly composed of an electron donative colorless dye and an electron accepting compound, a thermal color- forming layer is provided on a substrate having an oil absorptiveness of 10 sec. or less as specified by JIS-P8130. In the thermal color-forming layer, a specific ether compound shown by a general formula I is contained. In the formula, R1, R2 represent hydrogen atom, alkyl group, alkoxy group, and halogen atom, and X represents branched alkylene group. The ether compound shown by the formula I has a melting point of 70 to 150 deg.C, and 1,2-bis-(3- methoxyphenoxy)phenoxypropane or the like can be used therefor. The oil absorptiveness of the substrate is preferably 10 sec. or less. The oil absorbing substrate can be obtained by such a means as that an undercoat layer mainly composed of a high-oil absorbing pigment is formed on a substrate loading a high-oil absorbing pigment therein; or a porous high-molecular film, such as a microfilter, is used for the substrate.

54. 发明专利

JPH0276783A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPH0276783A
公开(公告)日：1990-03-16
申请号：JP23059488
申请日：1988-09-14
申请人： FUJI PHOTO FILM CO LTD
发明人： HAYASHI TAKAYUKI , IWAKURA KEN , YANAGIHARA NAOTO , KAWAKAMI HIROSHI
IPC分类号： B41M5/28 , B41M5/30 , B41M5/337 , B41M5/42
摘要： PURPOSE:To obtain a thermal recording material with high sensitivity and favorable dot reproducibility by successively laminating an undercoat layer containing hollow fine particles and a thermal color-forming layer containing a specific ether compound on a substrate. CONSTITUTION:In a thermal recording material mainly composed of an electron donative colorless dye and an electron accepting compound, an undercoat layer containing hollow fine particles and a thermal color-forming layer containing an ether compound shown by a general formula I are successively laminated on a substrate. In the formula, R1, R2 represent hydrogen atom, alkyl group, alkoxy group, and halogen atom, and X represents branched alkylene group. The ether compound shown by the formula I has a melting point of 70 to 150 deg.C, and 1,2-bis-(3-methoxyphenoxy)phenoxypropane or the like can be used therefor. As the hollow fine particles incorporated in the undercoat layer, hollow fine particles made of such materials as glass, ceramics, and plastic are used with the coating weight of 1g/m or more on the substrate.

55. 发明专利

JPH01263075A MULTICOLOR RECORDING METHOD 失效
公开(公告)号：JPH01263075A
公开(公告)日：1989-10-19
申请号：JP9281088
申请日：1988-04-15
申请人： FUJI PHOTO FILM CO LTD
发明人： KAWAKAMI HIROSHI
IPC分类号： B41M5/34 , B41M5/30
摘要： PURPOSE:To obtain a multicolor recording method using an inexpensive recording material, by bringing an electrondonative dye precursor and an electron- acceptive compound of a recording material into a color reaction with each other, and irradiating a required part of a color image thus formed with light to cause a change in hue through light-induced fading. CONSTITUTION:A multicolor recording method comprises bringing an electron- donative dye precursor and an electron-acceptive compound capable of a color reaction with the dye precursor, which are incorporated in a recording material, into the color reaction with each other, and irradiating a required part of a color image thus formed with light to cause a change in hue through light- induced fading. In this method, thermal recording and optical recording are carried out in separate systems, so that the boundary between the different hues obtained is clear. This method has the merit that the recording material used therein is quite the same as a general thermal recording material except that an electron-donative dye precursor for forming a coloring matter which is discolored or faded by light is used.

56. 发明专利

JPH01238981A PRODUCTION OF THERMAL RECORDING SHEET 失效
公开(公告)号：JPH01238981A
公开(公告)日：1989-09-25
申请号：JP6585588
申请日：1988-03-22
申请人： FUJI PHOTO FILM CO LTD
发明人： IGARASHI AKIRA , KAWAKAMI HIROSHI
IPC分类号： B41M5/28 , B41M5/30 , B41M5/40
摘要： PURPOSE:To enhance printing dot reproducibility with a small quantity of printing energy and enhance sensitivity by a method wherein a coating liquid for forming a heat-insulating layer comprising a foaming agent and a thermoplastic high molecular weight substance as main constituents and a coating liquid for forming an intermediate layer comprising a pigment and a high molecular weight binder as main constituents are provided as coating liquid layers on a base, followed by drying, and a coating liquid for forming a thermal recording layer is applied thereto, followed by drying. CONSTITUTION:A coating liquid A comprising a foaming agent capable of generating a gas when being heated and a thermoplastic high molecular weight substance as main constituents and a coating liquid B comprising a pigment and a high molecular weight binder as main constituents are applied in the coating liquid state to a base so that the two coating liquids are not mixed with each other and the coating liquid A makes contact with the base, followed by drying at a temperature not lower than the gasification temperature of the foaming agent. To an undercoat layer thus provided, a coating liquid for forming a thermal recording layer is applied, and is dried. At the time of drying, foaming occurs after the solidification of the binder in the upper layer of the coating liquid B is finished, so that the smoothness of the undercoat layer is maintained even after completion of the foaming reaction. Therefore, the coating amount of an intermediate layer can be reduced, and the effect of a heat-insulating layer can be fully displayed, so that it is possible to enhance printing dot reproducibility with a small quantity of printing energy and to impart higher sensitivity to a thermal recording sheet.

57. 发明专利

JPS6431679A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPS6431679A
公开(公告)日：1989-02-01
申请号：JP18858587
申请日：1987-07-28
申请人： FUJI PHOTO FILM CO LTD
发明人： KAWAKAMI HIROSHI
IPC分类号： B41M5/28 , B41M5/30 , B41M5/337 , B41M5/42
摘要： PURPOSE:To enhance thermal responsiveness and dot reproduction characteristics, by sequentially providing a first undercoat layer comprising hollow particles, a second undercoat layer comprising an organic compound having a specified melting point and a pigment, and a thermal color forming layer, on a base in a laminate form. CONSTITUTION:Hollow particles to be incorporated in a first undercoat layer may be formed of, for example, a glass, a ceramic or a plastic. An organic compound having a melting point of at least 50 deg.C to be added to a second undercoat layer is preferably an ether, ester or amide compound of any of formulas (I)-(IV), whereas a pigment is particularly preferably one which has an oil absorption specified by JIS-K5101 of at least 40cc/100g. In providing a thermal color forming layer, a color former and a color developer are dispersed in an aqueous solution of a water-soluble high molecular weight compound, and are mixed with a sensitizer added thereto, then the oil-absorptive pigment is added to the resultant mixture, and if required, a surfactant, a binder, a wax, a metallic soap, an anti-oxidant, a UV absorber or the like is added to the mixture to obtain a coating liquid for forming the thermal forming layer. The coating liquid is applied to the undercoat layer, followed by drying and calendering to impart smoothness, whereby a thermal recording material can be obtained.

58. 发明专利

JPS63221085A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPS63221085A
公开(公告)日：1988-09-14
申请号：JP5463787
申请日：1987-03-10
申请人： FUJI PHOTO FILM CO LTD
发明人： KAWAKAMI HIROSHI , IGARASHI AKIRA , IWAKURA KEN
IPC分类号： B41M5/337 , B41M5/40 , B41M5/42
摘要： PURPOSE:To enhance dot reproducibility, by containing an ary eater or aryl carbonate derivative having specific m.p. in a bottom coating layer. CONSTITUTION:An aryl eater derivative and aryl carbonate derivative both of which has m.p. of 75 deg.C or more used is a bottom coat layer are represented by formulae (I), (II) (wherein Ar is an aryl group and R1 is an alkyl group or an aryl group). The addition amount of each of them is pref. 1-20% by wt. of the pigment in the bottom coating layer. As the pigment, all of general org. and inorg. pigments can be used but one having oil absorption of 40cc/100g or more is pref. As a binder, a water-soluble high-molecular and water insoluble binders are designated and the use amount of each of them is 3-100% by wt. of the pigment. Wax, a discoloration inhibitor, a surfactant or the like may be further added to the bottom coating layer.

59. 发明专利

JPS6374682A THERMAL RECORDING MATERIAL 失效
公开(公告)号：JPS6374682A
公开(公告)日：1988-04-05
申请号：JP22050786
申请日：1986-09-18
申请人： FUJI PHOTO FILM CO LTD
发明人： KAWAKAMI HIROSHI , IGARASHI AKIRA
IPC分类号： B41M5/28 , B41M5/30 , B41M5/337 , B41M5/41 , B41M5/42 , B41M5/18
摘要： PURPOSE:To obtain a thermal recording material having a high color forming sensitivity and a minimum possibility of head stain phenomenon, by providing a thermal color forming layer containing a specific hot melt components on a substrate having a specific oil absorption. CONSTITUTION:In a thermal recording material containing an electron donative dye-precursor and an electron accepting compound as main components, a thermal color forming layer is formed on a substrate having a 10 sec or less of oil absorption specified in JIS-P8130 and the thermal color forming layer contains hot melt components having a 10 cp or less melt viscosity at 150 deg.C. The hot melt components are composed of the electron donative dye-precursor, the electron accepting compound, and a thermoplastic substance, which are contained in the thermal color forming layer. The melt viscosity here means a viscosity which is obtained when the hot melt components are mixed in the same composition ratio as that in the thermal color forming layer and melted under heat.

60. 发明专利

JP2006274053A Ink composition and image-forming method 有权
标题翻译：墨水组合物和图像形成方法
公开(公告)号：JP2006274053A
公开(公告)日：2006-10-12
申请号：JP2005095415
申请日：2005-03-29
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： KAWAKAMI HIROSHI
IPC分类号： B41J2/01 , B41M5/00 , C09D11/00 , C09D11/328 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To form a fast image that exhibits high adhesion to a material to be recorded on and is hardly peeled therefrom. SOLUTION: The ink composition comprises a monomer, which forms a polymer having a glass transition temperature Tg of 0°C or lower by polymerization, in an amount within the range of 0.5-50 mass% based on the total of the monomer and the other polymerizable compounds. COPYRIGHT: (C)2007,JPO&INPIT

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