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31. 发明专利

JPH06266041A DRY SILVER SALT PHOTOSENSITIVE BODY 失效
公开(公告)号：JPH06266041A
公开(公告)日：1994-09-22
申请号：JP5247093
申请日：1993-03-12
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： KOBAYASHI MOTOKAZU , FUKUI TETSURO , OI TAKEHIKO , UENO KAZUNORI , NISHINO KATSUYA , SUZUKI MASAO , KAGAMI KENJI
IPC分类号： G03C1/498 , G03C1/76
摘要： PURPOSE:To stabilize a moisture-proof effect for a long period and to enhance raw stock storage stability by forming a moisture-proof film, especially, a siloxane film on the side of a heat-developable photsensitive element. CONSTITUTION:The photosensitive body is obtained by forming the heat- developable photosensitive element comprising at least an organic silver salt, a reducing agent, photosensitive silver halide and/or a photosensitive silver halide component, and a binder in a single layer or multilayers on a support. This element has the moisture-proof film made of a siloxane having a 3-dimensional structure on the side of the element layer, and it is obtained by preparing photosensitive silver halide in the absence of the organic silver salt and the reducing agent, and adding the silver salt to an image-forming part, and mixing it. It is referred to add an organic acid, especially, a long-chain fatty acid the same as the fatty acid of the organic silver salt or resembling it alone or in combination to the photosensitive element in order to improve an image tone and image stability after its formation.

32. 发明专利

JPH0659381A DRY SILVER SALT PHOTOSENSITIVE BODY AND IMAGE FORMING METHOD 失效
公开(公告)号：JPH0659381A
公开(公告)日：1994-03-04
申请号：JP21044792
申请日：1992-08-06
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： FUKUI TETSURO , OI TAKEHIKO , KOBAYASHI MOTOKAZU , SUZUKI MASAO , NISHINO KATSUYA , KAGAMI KENJI
IPC分类号： G03C1/498 , G03C5/00 , G03C5/08 , G03C8/40
摘要： PURPOSE:To obtain the dry silver salt photosensitive body sensitive to semiconductor laser beams in an infrared region and high in sensitivity and superior in raw stock storage stability by incorporating at least one of specified sensitizing dyes in a heat-developable element. CONSTITUTION:This dry silver salt photosensitive body is obtained by forming a heat-developable photosensitive element comprising at least an organic silver salt, a reducing agent, photosensitive silver halide grains, and/or a component for forming them, and a binder into one layer or a multilayer on a support and this element contains at least one of the sensitizing dyes represented by formula I in which each of R1 and R2 is optionally substituted alkyl; each of R3 and R4 is H or alkyl or each may combine with each other to form a condensed ring: X is an O, S, or Se atom or >N-R5; Y is an S atom or >N-R6; each of W and Z is an optionally substituted aliphatic residue necessary to form a 5- or 6-membered ring and each does not form a ring at the same time: and when W and Z do not form a ring, each of r1 and r2 is H or alkyl.

33. 发明专利

JPH0635109A HEAT-DEVELOPABLE PHOTOSENSITIVE BODY AND IMAGE FORMING METHOD USING SAME 失效
公开(公告)号：JPH0635109A
公开(公告)日：1994-02-10
申请号：JP4111293
申请日：1993-03-02
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： TANAKA HIROMI , FUKUI TETSURO , OI TAKEHIKO , HIGUCHI TETSUYA , SUZUKI MASAO , KAGAMI KENJI , NISHINO KATSUYA
IPC分类号： G03C1/498 , G03C5/08 , G03C8/40
摘要： PURPOSE:To systematize the low-cost compact dry process of image recording by forming on a support a photosensitive layer containing an organic silver salt, a reducing agent, photosensitive silver halide, and a specified sensitizing dye. CONSTITUTION:The photosensitive layer formed on the support contains at least the organic silver salt, the reducing agent, the photosensitive silver halide or an agent for forming this silver halide, and the sensitizing dye represented by formula I in which(r) is H or optionally halogenated alkyl or optionally substituted alkoxy; each of (r ) and (r ) is optionally substituted aryl or each may form a condensed ring together with each other; each of (r )-(r ) is, independently, H, optionally substituted alkyl, such alkenyl, such aryl, or the like; X is O, S, C, N, or Se; X is O, S, or N; X is O or S; and (n) is 1 or 2.

34. 发明专利

JPH0540325A HEAT DEVELOPABLE PHOTOSENSITIVE BODY 失效
公开(公告)号：JPH0540325A
公开(公告)日：1993-02-19
申请号：JP29923991
申请日：1991-11-14
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： TANAKA HIROMI , KOBAYASHI MOTOKAZU , FUKUI TETSURO , HIGUCHI TETSUYA , SUZUKI MASAO , KAGAMI KENJI
IPC分类号： G03C1/42 , G03C1/498 , G03C5/00 , G03C8/40
摘要： PURPOSE:To obtain the photosensitive body high in heat developing speed and image contrast and storage stability in an unexposed state by incorporating a specified heat development promoter in a photosensitive layer. CONSTITUTION:The photosensitive layer formed on a support contains silver salt, silver halide, a reducing agent, and a compound having a reduction potential of -1.2 to +1.0V based on the standard of an AgCl/Ag electrode, especially, that of -0.8 to +0.8V reduction potential. The compound of -2 to +1.0V acts as a heat developing promoter. The compound of =+1.0V that effect becomes too strong and generates fog. This promoter has both functions as this intrinsic promoter and, moreover, an additional function of an irradiation preventing coating material attainable by properly controlling light absorption wavelength.

35. 发明专利

JPH04348339A DRY PROCESS SILVER SALT PHOTOSENSITIVE MATERIAL AND IMAGE FORMING METHOD USING SAME 失效
公开(公告)号：JPH04348339A
公开(公告)日：1992-12-03
申请号：JP2908591
申请日：1991-01-31
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： KATAYAMA MASATO , FUKUI TETSURO , TANAKA HIROMI , KAGAMI KENJI , SUZUKI MASAO
IPC分类号： G03C1/498 , G03C1/83 , G03C5/08 , G03C8/40
摘要： PURPOSE:To form an image excellent in sensitizability in the near infrared wavelength region and sharpness by forming a specified antihalation layer and a specified photosensitive layer on a polyester film. CONSTITUTION:The antihalation layer containing an indolenine type dye of formula II is formed on the polyester film and the photo-sensitive layer containing a heptacyanine type sensitizing dye of formula I, organic silver, a reducing agent, silver halide, a binder, and the like is formed on the antihalation layer. In formula I and II, each of R1 and R2 is alkyl; each of R3-R6 is H, alkyl, or the like; each of X1 and X2 is 0 or the like; Y is an anion; each of r1-r7 is H, alkyl, or the like; each of l, m, and n is 0-3, but all of them are not 0 at the same time; each of A7-A10 is alkyl; and each of A1 and A2 is H or the like; each of A3-A6 is H, alkyl, or the like; each of a1-a7 is H or alkyl. The dye of formula I is added in an amount of 1X10 -1X10 mol per mol of the organic silver, and the dye of formula II is added in an amount of 0.5-100mg per 1g of the binder.

36. 发明专利

JPH04313746A HEAT DEVELOPABLE DRY SYSTEM SILVER SALT PHOTOSENSITIVE BODY 失效
公开(公告)号：JPH04313746A
公开(公告)日：1992-11-05
申请号：JP10508491
申请日：1991-04-11
申请人： CANON KK , ORIENTAL PHOTO IND CO LTD
发明人： TANAKA HIROMI , FUKUI TETSURO , KAGAMI KENJI , SUZUKI MASAO
IPC分类号： G03C1/498
摘要： PURPOSE:To obtain an image high in optical density in exposed part and small in fog and high in contrast in unexposed part by using a specified compound as a reducing agent. CONSTITUTION:The photosensitive material layer formed on a support comprises organic silver, silver halide, and the reducing agent as necessary constituents, and when needed, further a binder, and other additives, and the compound to be used as the reducing agent is represented by formula I in which each of R -R is independently H, halogen, optionally substituted alkyl or such alkoxy or such aralkyl or such aryl. The silver halide to be used is selected from silver chloride, bromide, chlorobromide, iodobromide, and chloroiodobromide, and these may be subjected to chemical and optical sensitization treatments such as treated for ordinal photographic emulsions.

37. 发明专利

JPH04177337A HEAT DEVELOPING SENSITIVE MATERIAL 失效
公开(公告)号：JPH04177337A
公开(公告)日：1992-06-24
申请号：JP30401690
申请日：1990-11-13
申请人： ORIENTAL PHOTO IND CO LTD , CANON KK
发明人： KAGAMI KENJI , SUZUKI MASAO , FUKUI TETSURO , TANAKA HIROMI
IPC分类号： G03C1/498 , G03C1/76
摘要： PURPOSE:To improve overlapping of an exposed part and developing latitude by specifying the amount of weak acid strong base included in a polyvinyl alcohol used for a protective layer, in relation to the polyvinyl alcohol. CONSTITUTION:A heat developing sensitive material is composed of a sensitive halogenated silver formed on a supporting body, an organic silver salt, a heat developing sensitive layer including reducer and color toner, and of a protective layer primarily made of polyvinyl alcohol, formed on the sensitive layer. The amount of weak acid strong base included in the protective layer is not more than 0.2wt% in relation to the polyvinyl alcohol. The weak acid strong base is preferred to be sodium acetate. A heat developing sensitive material of broad heat developing latitude, and low level of overlapping of unexposed part of image, can thus be obtained.

38. 发明专利

JPH04113360A IMAGE FORMING MEDIUM AND METHOD 失效
公开(公告)号：JPH04113360A
公开(公告)日：1992-04-14
申请号：JP23053390
申请日：1990-09-03
申请人： ORIENTAL PHOTO IND CO LTD , CANON KK
发明人： KAGAMI KENJI , SUZUKI MASAO , KONDO YUJI , KATAYAMA MASATO , FUKUI TETSURO , ISAKA KAZUO , MORI AKIHIRO , TANAKA HIROMI
IPC分类号： G03F7/004 , G03F7/26
摘要： PURPOSE:To efficiently form polymerized images in a short period of time and to obtain color images having decreased color fogging by having an intermediate layer consisting of a layer formable high-polymer material between a color material layer and a polymerized layer. CONSTITUTION:The layers of the image forming medium are constituted of a base 5, the color material layer 4, the intermediate layer 3, and the polymerized layer 2. The intermediate layer is formed of the high-polymer material capable of forming laminar films by dissolving this material in a solvent and applying the soln. on a base material, then evaporating away the solvent or extrusion coating the soln. by melting onto the base material. The intrusion of a thermally diffusive material from the color material layer to the polymerized layer, etc., is then prevented by this intermediate layer at the time of a coating state of respective layers at the time of production of the medium consisting of, for example, nitrocellulose, etc., and a heating stage at the time of full-surface exposing. The generation of the adverse influence by the light absorption of the thermally diffusive material, such as desensitization of the polymerizable compd. and decrease in curing rate, is obviated. The polymerized images are thus efficiently formed in the extremely short period of time and the color images having the extremely decreased color fogging are obtd.

39. 发明专利

JPH043063A PHOTOSENSITIVE BODY AND IMAGE FORMING METHOD 失效
公开(公告)号：JPH043063A
公开(公告)日：1992-01-08
申请号：JP10298190
申请日：1990-04-20
申请人： ORIENTAL PHOTO IND CO LTD , CANON KK
发明人： KAGAMI KENJI , SUZUKI MASAO , FUKUI TETSURO , KATAYAMA MASATO , TANAKA HIROMI , KONDO YUJI , MORI AKIHIRO
IPC分类号： G03F7/004 , G03C5/00 , G03F7/26
摘要： PURPOSE:To obtain the photosensitive body which forms a polymerized surface image having a good contrast and has an excellent green preservable property by incorporating a development accelerator for assisting an oxidation reduction reaction into a layer different from a layer contg. photosensitive and heat developable elements. CONSTITUTION:The development accelerator 5 which accelerates the heat developability is incorporated into the layer exclusive of the layer 3 contg. the photosensitive and heat developable elements. Namely, the development accelerator is migrated to the layer 3 contg. the photosensitive and heat developable elements by heating simultaneously with image exposing and after the oxidation reduction reaction is effected in the image exposed parts, the entire surface is subjected to exposing to form the polymerized surface image. The photosensitive body having the good green preservable property and less scumming is obtd. in this way and the polymerized surface image having the good contrast is obtd.

40. 发明专利

JPH03282469A PHOTOSENSITIVE BODY 失效
公开(公告)号：JPH03282469A
公开(公告)日：1991-12-12
申请号：JP8106990
申请日：1990-03-30
申请人： ORIENTAL PHOTO IND CO LTD , CANON KK
发明人： KAGAMI KENJI , SUZUKI MASAO , FUKUI TETSURO , KONDO YUJI
IPC分类号： G03F7/027 , G03F7/06
摘要： PURPOSE:To obtain a dye image small in color fogging by incorporating a specified compound in a polymerizable polymer precursor. CONSTITUTION:The photosensitive body comprises at least a heat-developable photosensitive composition composed of sensitive silver halide, an organic silver salt, and a reducing agent, and the developable polymer precursor containing the compound represented by formula I in which each of R - R is H or alkyl, independent of each other, and each of a1 - a6 is a divalent group, thus permitting the obtained photosensitive body to form a printing plate good in printing resistance and a dye-transferred high-quality image.

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