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公开(公告)号：EP1922589A2
公开(公告)日：2008-05-21
申请号：EP06808815.2
申请日：2006-08-18
CPC分类号： G03F7/322 , B41C1/1008 , B41C1/1016 , B41C2210/02 , B41C2210/06 , B41C2210/22 , B41C2210/24 , B41C2210/262
摘要： The invention relates to a method for making a lithographic printing plate which comprises imagewise exposing a lithographic printing plate precursor comprising one or more layers at least one of which is associated with one or more unsubstituted or substituted triarylmethane dyes and at least one of which layers is radiation-sensitive, and developing the imagewise exposed printing plate precursor with an aqueous alkaline developing composition, wherein the composition comprises at least one amphoteric surfactant of formula (I): - wherein R1 is an unsubstituted alkyl group; each R2 and each R3 are independently selected from H, hydroxy and an unsubstituted or substituted alkyl group; R4 and R5 are independently selected from an unsubstituted alkyl group or one Of R4 and R5 may be the group -(CH2)m-Y-R1; X- is selected from COO-, SO3-, OSO3-, PO3H-, PO3Z-, OPO3H- and OPO3Z-, wherein Z is a monovalent cation; Y is selected from CONH, NHCO, COO, OCO, NHCONH and O; 1 is 0 or 1; m is an integer from 1 to 10; and n is an integer from 1 to 5, The use of the composition for the development of radiation- sensitive positive- or negative- printing plate precursors depresses sludge formation associated with the presence of the triarylmethane dyes, thereby increasing developing capacity, and also prevents coloration of components in the developing section of the processor caused by the presence of such dyes.
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公开(公告)号：EP1791699A1
公开(公告)日：2007-06-06
申请号：EP05784586.9
申请日：2005-08-25
IPC分类号： B41N3/03 , C09D183/08
CPC分类号： B41N3/038 , B41C1/1008 , B41C1/1058 , B41C1/1066 , B41C1/1091 , B41C2210/02 , B41C2210/04 , B41C2210/06 , B41C2210/22 , B41C2210/24 , C09D183/08
摘要： Lithographic substrate comprising (a) a dimensionally stable plate- or foil-shaped support, (b) an aluminum oxide layer provided on at least one side of the support (a), and (c) a hydrophilic layer applied onto the aluminum oxide layer comprising at least one phosphono-substituted siloxane of the general formula (I)
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3.发明授权HETERO-SUBSTITUTED ARYL ACETIC ACID CO-INITIATORS FOR IR-SENSITIVE COMPOSITIONS 有权异质取代arylacetic CO引发的红外敏感组合
公开(公告)号：EP1556227B1
公开(公告)日：2006-04-26
申请号：EP03779238.9
申请日：2003-10-23
CPC分类号： B41C1/1008 , B41C1/1016 , B41C2201/02 , B41C2201/14 , B41C2210/04 , B41C2210/06 , B41C2210/22 , B41C2210/24
摘要： An IR-sensitive composition comprising, in addition to a polymeric binder, a free radical polymerizable system consisting of at least one member selected from unsaturated free radical polymerizable monomers, oligomers which are free radical polymerizable, and polymers containing C=C bonds in the back bone and/or in the side chain groups and an initiator system, wherein the initiator system comprises the following components: (a) at leat one material capable of absorbing IR radiation, (b) at least one compound capable of producing radicals and (c) at least one hereto-substituted arylacetic acid co-initiator compound indicated by the following general structures: where X is either nitrogen, oxygen or sulfur, Ar is any substituted or unsubstituted aryl ring and R is any substituent.
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公开(公告)号：EP0939698B1
公开(公告)日：2003-09-24
申请号：EP98939401.0
申请日：1998-08-14
发明人： NGUYEN, My, T. , MERCHANT, Nishith , SHIMAZU, Ken-Ichi , PAPPAS, Peter, S. , HALLMAN, Robert, W. , KESSELMAN, Jerome, P. , SAVARIAR-HAUCK, Celin , HAUCK, Gerhard , TIMPE, Hans-Joachim
CPC分类号： B41C1/1008 , B41C2210/02 , B41C2210/06 , B41C2210/24 , B41C2210/262 , B41M5/36 , B41M5/368 , Y10S430/107 , Y10S430/145
摘要： 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-naphthoquinone 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.
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公开(公告)号：EP0917544A1
公开(公告)日：1999-05-26
申请号：EP97910760.0
申请日：1997-09-29
发明人： BAUMANN, Harald , DWARS, Udo , SAVARIAR-HAUCK, Celin, M. , PAPPAS, Socrates, Peter , TIMPE, Hans-Joachim
CPC分类号： C09D129/14 , C09D129/04 , G03F7/11 , H05K3/287
摘要： Water soluble oxygen-impermeable coatings possessing high photosensitivity, good resolution, good ink receptivity after development, long shelf live and good adhesion. The amine- and hydroxy-functional vinyl coatings are to be used in the production of lithographic printing plates.
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公开(公告)号：EP1444552B8
公开(公告)日：2006-06-07
申请号：EP02789645.5
申请日：2002-11-13
IPC分类号： G03F7/30
CPC分类号： G03F7/3092
摘要： A method for the refreshment and reuse of loaded developers used in lithographic printing is disclosed. A polyoxyalkylene derivative is added to a silicate-containing loaded developer. Insoluble material is separated and the alkalinity level of the resulting essentially colorless liquid adjusted to produce a refreshed developer. The refreshed developer may be used to develop additional exposed imageable elements.
摘要翻译： 公开了一种用于在平版印刷中使用的加载显影剂的更新和再使用的方法。 将聚氧化烯衍生物加入到含硅酸盐的加载显影剂中。 分离不溶物质并调节所得基本无色液体的碱度以产生更新的显影剂。 刷新的显影剂可用于开发额外的暴露的可成像元件。
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公开(公告)号：EP1497122B1
公开(公告)日：2006-05-31
申请号：EP03727351.3
申请日：2003-04-24
IPC分类号： B41C1/10
CPC分类号： B41C1/1008 , B41C1/1016 , B41C2210/04 , B41C2210/06 , B41C2210/22 , B41C2210/24 , B41M5/465 , Y10S430/107 , Y10S430/109 , Y10S430/145
摘要： The use of certain mercapto compounds as shelf life improvers for infrared-sensitive lithographic printing plate precursors is disclosed. The compounds are five-membered heteroaromatic rings containing a nitrogen atom and at least one other heteroatom, which can be oxygen, sulfur, or another nitrogen atom, such that two ring heteroatoms are bonded to a ring carbon bearing a thiol group.
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8.发明公开1-4-DIHYDROPYRIDINE-CONTAINING IR-SENSITIVE COMPOSITION AND USE THEREOF FOR THE PRODUCTION OF IMAGEABLE ELEMENTS 审中-公开红外线感光组合物的1,4-二氢吡啶及其使用的元素可以被映射的生产
公开(公告)号：EP1631456A2
公开(公告)日：2006-03-08
申请号：EP04739708.8
申请日：2004-06-08
IPC分类号： B41C1/10
CPC分类号： B41M5/465 , B41C1/1008 , B41C1/1016 , B41C2201/02 , B41C2201/14 , B41C2210/04 , B41C2210/06 , B41C2210/20 , B41C2210/22 , B41C2210/24 , B41M5/368 , Y10S430/117 , Y10S430/121
摘要： (a) at least one substance capable of absorbing IR radiation, (b) at least one compound capable of forming free radials, and (c) at least one 1,4-dihydropyridine derivative of the formula (I)
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9.发明公开
公开(公告)号：EP1292860A2
公开(公告)日：2003-03-19
申请号：EP01929416.4
申请日：2001-03-07
发明人： FUSS, Robert , BAUMANN, Harald , DWARS, Udo , TIMPE, Hans-Joachim
CPC分类号： G03F7/0212 , G03F7/0215 , G03F7/032
摘要： The present invention relates to a light-sensitive composition containing: (i) at least one diazonium polycondensation product or at least one system that can be radically polymerised and consists of photo initiators and unsaturated compounds which can be radically polymerised or at least one hybrid system consisting of a diazonium polycondensation product and a system that can be radically polymerised and consists of photo initiators and unsaturated compounds which can be radically polymerised, (ii) at least one binding agent and optionally one or more exposure indicators, one or more dyes for increasing the image contrast and one or more acids for stabilising the light-sensitive composition which is characterised in that the binding agent essentially consists of units (A, B, C, D), whereby A corresponds to formula (I), B corresponds to formula (II), C corresponds to formula (III) and D corresponds to formula (IV). The invention also relates to the use thereof for coating printing plates. The invention further relates to printing plates which are coated with said light-sensitive composition.
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公开(公告)号：EP1774404A2
公开(公告)日：2007-04-18
申请号：EP05774698.4
申请日：2005-07-14
IPC分类号： G03F7/00
CPC分类号： G03F7/0757 , G03F7/028
摘要： Radiation-sensitive element comprising (a) an optionally pretreated substrate and (b) a radiation-sensitive coating consisting of a composition comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a freeradical polymerization, (ii) at least one radiation-sensitive initiator or initiator system for free-radical polymerization absorbing radiation selected from the wavelength range of 300 to 1,200 nm; and (iii) at least one silsesquioxane comprising at least one substituent with at least one ethylenically unsaturated group each; applied onto the substrate.
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