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公开(公告)号：JP2001301351A
公开(公告)日：2001-10-31
申请号：JP2000123108
申请日：2000-04-24
Applicant: TORAY INDUSTRIES
Inventor： GOTO KAZUOKI , FUJIYOSHI KUNITAKA , NAGASE KOICHI
Abstract: PROBLEM TO BE SOLVED: To provide a direct waterless lithographic printing plate capable of being developed only with water. SOLUTION: The direct waterless lithographic printing plate comprises at least a heat sensitive layer and a silicone rubber layer in this order on a base plate. In this case, the rubber layer contains a hydrophilic component.
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公开(公告)号：JP2001225566A
公开(公告)日：2001-08-21
申请号：JP2000038620
申请日：2000-02-16
Applicant: TORAY INDUSTRIES
Inventor： GOTO KAZUOKI , NAGASE KOICHI , OBAYASHI GENTARO
Abstract: PROBLEM TO BE SOLVED: To provide a direct lithographic type lithographic printing plate having good image reproducibility. SOLUTION: An original plate for the direct lithographic type lithographic printing plate comprises at least a heat sensitive layer on a base plate. In this case, the layer contains a compound having a structure represented by formula I, wherein M is a metal atom or an organic component, (A) is an organic polymer component, (B) is an organic molecular component, n and m are each an integer of 1 or more, and 1 is an integer of 0 or 1 or more.
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公开(公告)号：JP2001225565A
公开(公告)日：2001-08-21
申请号：JP2000038621
申请日：2000-02-16
Applicant: TORAY INDUSTRIES
Inventor： GOTO KAZUOKI , NAGASE KOICHI , OBAYASHI GENTARO
IPC: B41N1/08
Abstract: PROBLEM TO BE SOLVED: To provide a direct lithographic waterless lithographic printing plate having good damage resistance and excellent handleability without necessity of a protective film. SOLUTION: An original plate for the direct lithographic waterless lithographic printing plate comprises a heat sensitive layer and a silicone rubber layer sequentially provided on a base plate. In this case, the rubber layer contains fine particles.
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公开(公告)号：JP2001051409A
公开(公告)日：2001-02-23
申请号：JP2000163426
申请日：2000-05-31
Applicant: TORAY INDUSTRIES
Inventor： GOTO KAZUOKI , KAWAMURA TAKESHI , NAGASE KOICHI
Abstract: PROBLEM TO BE SOLVED: To ensure enhanced suitability to printing-out for an original plate of a direct pattern forming waterless planographic printing plate with at least a heat sensitive layer and an ink repellent layer in this order on the substrate by forming the heat sensitive layer from a composition prepared by mixing at least an acid and a dye which forms a color under the action of the acid. SOLUTION: In an original plate of a direct pattern forming waterless planographic printing plate with at least a heat sensitive layer and an ink repellent layer in this order on the substrate, the heat sensitive layer is formed from a composition prepared by mixing at least an acid and a dye which forms a color under the action of the acid. The dye is not particularly limited but a dye having a structure of the formula is preferably used. The preferred content of the dye is 1-20 wt.%, in particular 5-15 wt.% of the total amount of the heat sensitive composition. In the case of >=1 wt.%, a significant effect of enhancing suitability to printing-out is produced. In the case of
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公开(公告)号：JP2000330266A
公开(公告)日：2000-11-30
申请号：JP13715499
申请日：1999-05-18
Applicant: TORAY INDUSTRIES
Inventor： NAGASE KOICHI , ICHIKAWA SHIGEHIKO , IKEDA NORIMASA
Abstract: PROBLEM TO BE SOLVED: To obtain a negative type direct image forming type original plate of a waterless planographic printing plate having good image reproducibility and good adhesiveness to the substrate and excellent in printing resistance. SOLUTION: The direct image forming type original plate of a waterless planographic printing plate has at least a heat insulating layer, a heat sensitive layer and an ink repellent layer in this order on the substrate. The heat sensitive layer contains at least (a) a compound that is degraded by irradiation with laser light and (b) a thermosetting compound. The heat insulating layer contains >=50 wt.% epoxy-urea resin.
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Patent Agency Ranking
公开(公告)号：JP2000326650A
公开(公告)日：2000-11-28
申请号：JP14333099
申请日：1999-05-24
Applicant: TORAY INDUSTRIES
Inventor： AOKI SHINGO , GOTO KAZUOKI , NAGASE KOICHI
Abstract: PROBLEM TO BE SOLVED: To obtain an original plate for a negative direct lithographic printing plate having good image reproducibility by sequentially providing a heat sensitive layer containing a compound made of an at least polymethine pigment and capable of being decomposed by irradiating with a laser and a thermosetting compound, and an ink repellant layer on a base plate. SOLUTION: A compound capable of being decomposed by irradiating with a laser is made of at least a polymethine pigment near infrared absorption pigment to efficiently absorb a near infrared laser beam and to convert it into a heat, and as the compound, a carbon black is preferably used from views of its photothermal conversion rate, economy and handleability. As a thermosetting compound, a phenol resin or the like is used, the compound decomposed by a laser beam, and curing of the compound is proceeded in a heat sensitive layer. As an ink repellant layer, a hydrophilic layer made of a vinyl alcohol or the like or a silicone rubber layer or the like can be used. A negative waterless lithographic printing plate in which only the repellant layer of the part irradiated with the laser beam is removed is obtained.
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公开(公告)号：JP2000301848A
公开(公告)日：2000-10-31
申请号：JP11603299
申请日：1999-04-23
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA SHIGEHIKO , GOTO KAZUOKI , NAGASE KOICHI
Abstract: PROBLEM TO BE SOLVED: To retain a heat sensitive layer of a printing element portion and to obtain good image reproducibility by incorporating a compound capable of being decomposed by an operation of at least irradiating the sensitive layer with a laser beam and a novolac resin in the sensitive layer in an original plate for a direct lithographic printing plate having at least the sensitive layer and an ink repellent layer on a substrate. SOLUTION: An original plate for a direct writing waterless lithographic printing plate which can be directly engraved by a laser beam and printed without using dampening water comprises at least a heat sensitive layer and an ink repellent layer on a substrate. In this case, the sensitive layer contains a compound capable of being decomposed by irradiating the layer with a laser beam, and a novolac resin. As the compound capable of being decomposed by irradiating with the beam, (1) a compound does not absorb the beam but is decomposed by an operation of another compound for absorbing the beam, and (2) the compound itself absorbs the beam and decomposed. As the compound (1), an ammonium nitrate, a potassium nitrate, a sodium nitrate or the like can be used.
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公开(公告)号：JP2000238448A
公开(公告)日：2000-09-05
申请号：JP4464199
申请日：1999-02-23
Applicant: TORAY INDUSTRIES
Inventor： AOKI SHINGO , GOTO KAZUOKI , NAGASE KOICHI
IPC: B41N1/14
Abstract: PROBLEM TO BE SOLVED: To manufacture a direct drawing type waterless lithographic printing block original plate with a heat-sensitive layer of good resistance to scuffing generating little pin-hole shaped crawling and uneven coating. SOLUTION: In a manufacturing method for a direct drawing waterless lithographic printing block original plate formed of at least a heat-sensitive layer and a silicone rubber layer successively laminated together on a base, the heat-sensitive layer is formed by applying a coating solution containing a photothermal conversion substance, a metal containing organic compound and a compound represented by the formula. In the formula, R1 and R3 represent individually hydrogen, an alkyl, an aryl, an alkoxy, an aryloxy or a group formed of the combination of the above components, and R2 represents an alkylene or an arylene.
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公开(公告)号：JPH1184742A
公开(公告)日：1999-03-30
申请号：JP24312397
申请日：1997-09-08
Applicant: TORAY INDUSTRIES
Inventor： NOURA TAKAHIRO , YOKOYAMA KYOKO , NAGASE KOICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a superior image without blurring an image at the time of transfer the image to a subject for transfer by dispersing toner particles consisting essentially of a resin and a colorant in an insulating liq. and incorporating a wax soluble in the insulating liq. into the resultant liq. developer. SOLUTION: Toner particles consisting essentially of a resin and a colorant such as a pigment are dispersed in an insulating liq. such as a petroleum hydrocarbon carrier preferably by 0.1-20 wt.% and a wax soluble in the insulating liq. is incorporated into the resultant liq. developer by 0.001-10 wt.% to obtain the objective liq. developer as a full-color developer. Since the wax is added, electric charges of the liq. developer are stabilized and the developing performance is improved. A tougher image is formed at the time of developing a latent image and defacing and running can be prevented at the time of transfer to a subject for transfer.
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公开(公告)号：JPH117166A
公开(公告)日：1999-01-12
申请号：JP16149297
申请日：1997-06-18
Applicant: TORAY INDUSTRIES
Inventor： NOURA SHIYUUTA , YOKOYAMA KYOKO , NAGASE KOICHI
IPC: G03G9/12
Abstract: PROBLEM TO BE SOLVED: To obtain a liquid developer provided with a stable characteristic from just after production, without any dispersion in grain diameters and electric characteristics due to the standing period of the liquid developer or between production lots by applying processing with heating to a toner composition after rough pulverization. SOLUTION: The production consists of the processes of melt-kneading and roughly pulverizing a toner raw material including at least binding resin and a colorant and wetly dispersing the toner raw material into a liquid having an insulating property. The toner composition after the wet dispersion is processed by heating at 30 deg.C
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