Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Patent
1997-09-02
2000-05-09
Chu, John S.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
430159, 430160, 430165, 430190, 430906, 430944, G03F 730
Patent
active
060602171
ABSTRACT:
A method for directly imaging a lithographic printing surface using infrared radiation without the requirement of pre- or post-UV-light exposure, or heat treatment employs a printing plate which contains a support with a hydrophilic surface overcoated with an imaging layer. The imaging layer contains at least one polymer having bonded pendent groups which are hydroxy, carboxylic acid, tert-butyl-oxycarbonyl, sulfonamide, amide, nitrile, urea, or combinations thereof; as well as an infrared absorbing compound. The imaging layer may contain a second polymer which has bonded pendent groups which are 1,2-napthoquinone diazide, hydroxy, carboxylic acid, sulfonamide, hydroxymethyl amide, alkoxymethyl amide, nitrile, maleimide, urea, or combinations thereof. The imaging layer may also contain a visible absorption dye, a solubility inhibiting agent, or both. In practice, the imaging layer is imagewise exposed to infrared radiation to produce exposed image areas in the imaged layer which have transient solubility in aqueous alkaline developing solution, so that solubility is gradually lost over a period of time until the imaged areas become as insoluble as non-imaged areas. Within a short time period of the imaging exposure, the imaged layer is developed with an aqueous alkaline developing solution to form the lithographic printing surface. In this method, the infrared radiation preferably is laser radiation which is digitally controlled.
REFERENCES:
patent: 2766118 (1956-10-01), Sus et al.
patent: 2767092 (1956-10-01), Schmidt
patent: 2772972 (1956-12-01), Herrick, Jr. et al.
patent: 2859112 (1958-11-01), Sus et al.
patent: 2907665 (1959-10-01), Fraher
patent: 3046110 (1962-07-01), Schmidt
patent: 3046111 (1962-07-01), Schmidt
patent: 3046115 (1962-07-01), Schmidt et al.
patent: 3046118 (1962-07-01), Schmidt
patent: 3046119 (1962-07-01), Sus
patent: 3046120 (1962-07-01), Schmidt et al.
patent: 3046121 (1962-07-01), Schmidt
patent: 3046122 (1962-07-01), Sus
patent: 3046123 (1962-07-01), Sus et al.
patent: 3061430 (1962-10-01), Uhlig et al.
patent: 3102809 (1963-09-01), Endermann et al.
patent: 3105465 (1963-10-01), Peters
patent: 3628953 (1971-12-01), Brinkman
patent: 3635709 (1972-01-01), Kobayashi
patent: 3647443 (1972-03-01), Rauner et al.
patent: 3837860 (1974-09-01), Roos
patent: 3859099 (1975-01-01), Petropoulos et al.
patent: 3891439 (1975-06-01), Katz et al.
patent: 3902906 (1975-09-01), Iwama et al.
patent: 4063949 (1977-12-01), Uhlig et al.
patent: 4306010 (1981-12-01), Uehara et al.
patent: 4306011 (1981-12-01), Uehara et al.
patent: 4308368 (1981-12-01), Kubo et al.
patent: 4356254 (1982-10-01), Takashi et al.
patent: 4493884 (1985-01-01), Nagano et al.
patent: 4497888 (1985-02-01), Nishioka et al.
patent: 4529682 (1985-07-01), Toukhy
patent: 4544627 (1985-10-01), Takashi et al.
patent: 4576901 (1986-03-01), Stahlhofen et al.
patent: 4609615 (1986-09-01), Yamashita
patent: 4684599 (1987-08-01), DoMinh et al.
patent: 4693958 (1987-09-01), Schwatrz et al.
patent: 4708925 (1987-11-01), Newman
patent: 4789619 (1988-12-01), Ruckert et al.
patent: 4927741 (1990-05-01), Garth et al.
patent: 4966798 (1990-10-01), Brosius et al.
patent: 5002853 (1991-03-01), Aoai et al.
patent: 5085972 (1992-02-01), Vogel
patent: 5130223 (1992-07-01), Nishimura et al.
patent: 5145763 (1992-09-01), Bassett et al.
patent: 5149613 (1992-09-01), Stahlhofen et al.
patent: 5200292 (1993-04-01), Shinozaki et al.
patent: 5200298 (1993-04-01), Takagi et al.
patent: 5202221 (1993-04-01), Imai et al.
patent: 5208135 (1993-05-01), Patel et al.
patent: 5227473 (1993-07-01), Kawamura et al.
patent: 5279918 (1994-01-01), Nishi et al.
patent: 5286612 (1994-02-01), Tefler
patent: 5340699 (1994-08-01), Haley et al.
patent: 5368977 (1994-11-01), Yoda et al.
patent: 5372907 (1994-12-01), Haley et al.
patent: 5372915 (1994-12-01), Haley et al.
patent: 5372917 (1994-12-01), Tsuchida et al.
patent: 5380622 (1995-01-01), Roser
patent: 5437952 (1995-08-01), Hirai et al.
patent: 5441850 (1995-08-01), Marshall et al.
patent: 5466557 (1995-11-01), Haley et al.
patent: 5491046 (1996-02-01), DeBoer et al.
patent: 5631119 (1997-05-01), Shinozaki
patent: 5641608 (1997-06-01), Grunwald et al.
patent: 5658708 (1997-08-01), Kondo
patent: 5705308 (1998-01-01), West et al.
patent: 5705309 (1998-01-01), West et al.
patent: 5705322 (1998-01-01), West et al.
patent: 5725994 (1998-03-01), Kondo
patent: 5731123 (1998-03-01), Kawamura et al.
patent: 5741619 (1998-04-01), Aoshima et al.
patent: 5759742 (1998-06-01), West et al.
patent: 5786125 (1998-07-01), Tsuchiya et al.
patent: 5840467 (1998-11-01), Kitatani et al.
patent: 5858626 (1999-01-01), Sheriff et al.
"The Chemical Behavior of Positive Working Systems" by J.C. Strieter. Eastman Kodak Company, Rochester, New York. pp. 116-122.
Hallman Robert
Hauck Gerhard
Kesselman Jerome Philip
Merchant Nishith
Natu Omkar J.
Chu John S.
Kodak Polychrome Graphics LLC
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