METHOD OF DEVELOPING LITHOGRAPHIC PRINTING PLATE PRECURSORS
    1.
    发明申请
    METHOD OF DEVELOPING LITHOGRAPHIC PRINTING PLATE PRECURSORS 审中-公开
    开发平版印刷机前驱体的方法

    公开(公告)号:US20100159393A1

    公开(公告)日:2010-06-24

    申请号:US12063123

    申请日:2006-08-18

    IPC分类号: G03F7/20

    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; l 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.

    摘要翻译: 本发明涉及一种制备平版印刷版的方法,该方法包括成像曝光包含一层或多层的平版印刷版前体,其中至少一层与一种或多种未取代或取代的三芳基甲烷染料相连,其中至少一层是 辐射敏感,并用含水碱性显影组合物显影成像曝光的印版前体,其中所述组合物包含至少一种式(I)的两性表面活性剂:其中R1是未取代的烷基; 每个R 2和R 3各自独立地选自H,羟基和未取代或取代的烷基; R4和R5独立地选自未取代的烷基,或者R4和R5之一可以是基团 - (CH2)m-Y-R1; X选自COO-,SO 3 - ,OSO 3 - ,PO 3 - ,PO 3 - ,OPO 3 - 和OPO 3 Z-,其中Z是一价阳离子; Y选自CONH,NHCO,COO,OCO,NHCONH和O; l为0或1; m为1〜10的整数; 并且n是1至5的整数。用于开发辐射敏感的正片或负片印版前体的组合物抑制与三芳基甲烷染料的存在相关的污泥形成,从而增加显影能力,并且还防止 由于这种染料的存在,在处理器的显影部分中的组分着色。

    On-press developable IR sensitive printing plates
    2.
    发明授权
    On-press developable IR sensitive printing plates 失效
    印刷机可印刷的IR感光印版

    公开(公告)号:US06846614B2

    公开(公告)日:2005-01-25

    申请号:US10066874

    申请日:2002-02-04

    摘要: The present invention relates to IR-sensitive compositions suitable for the manufacture of printing plates developable on-press. The IR-sensitive compositions comprise a first polymeric binder which does not comprise acidic groups having a pKa value≦8; a second polymeric binder comprising polyether groups; an initiator system; and a free radical polymerizable system comprising at least one member selected from unsaturated free radical polymerizable monomers, free radical polymerizable oligomers and polymers containing C═C bonds in the back bone and/or in the side chain groups. The initiator system includes (i) at least one compound capable of absorbing IR radiation; (ii) at least one compound capable of producing radicals selected from polyhaloalkyl-substituted compounds; and (iii) at least one polycarboxylic acid of formula R4—(CR5R6)r—Y—CH2COOH, wherein oxi

    摘要翻译: 本发明涉及适于制造可印刷印刷机的印版的IR敏感组合物。 IR敏感组合物包含不包含pKa值<= 8的酸性基团的第一聚合物粘合剂; 包含聚醚基团的第二聚合物粘合剂; 发起者系统; 和包含选自不饱和自由基可聚合单体,可自由基聚合的低聚物和在后骨和/或侧链基团中含有C = C键的聚合物中的至少一种的自由基可聚合体系。 引发剂体系包括(i)至少一种能够吸收IR辐射的化合物; (ii)至少一种能够产生选自多卤烷基取代的化合物的基团的化合物; 和(iii)至少一种式R 4 - (CR 5 R 6)r Y-CH 2 COOH的多元羧酸,其中oxi

    Developer for alkaline-developable lithographic printing plates

    公开(公告)号:US06541188B2

    公开(公告)日:2003-04-01

    申请号:US09853358

    申请日:2001-05-11

    IPC分类号: G03F732

    CPC分类号: G03F7/322

    摘要: An aqueous alkaline developing system for alkaline-developable lithographic printing plates and a method for its use are disclosed. The developing system comprises one or more water-soluble suppressors of the following structure: R1 (CHOH)nR2 in which: n is 4 to 7; and either (i) R1 is hydrogen, aryl, or CH2OH; and R2 is alkyl group having 1 to 4 carbon atoms, CH2OR3 in which R3 is an alkyl group having 1 to 4 carbon atoms, CH2N(R4R5) in which R4 and R5 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, or CO2H; or (ii) R1 and R2 together form a carbon-carbon single bond. The developing system is especially suited for developing imageable elements useful as lithographic printing plates. The developing system is especially suited for use with elements in which (1) the imageable layer comprises at least one phenolic resin or at least one polymeric compound having pendent sulfonamide groups, and (2) the substrate is aluminum or and an aluminum alloy.

    Method of processing lithographic printing plate precursors
    5.
    发明授权
    Method of processing lithographic printing plate precursors 失效
    平版印刷版前体的处理方法

    公开(公告)号:US06649319B2

    公开(公告)日:2003-11-18

    申请号:US09878457

    申请日:2001-06-11

    IPC分类号: G03F7021

    CPC分类号: G03F7/322 B41N3/08

    摘要: A method of processing imageable elements useful as alkaline-developable lithographic printing plate precursors that does not require either a rinsing step or a further gumming step is disclosed. The method comprises simultaneously developing and gumming the imaged element with an aqueous alkaline developing-gumming solution comprising one or more water-soluble polyhydroxy compounds of the following structure: R1(CHOH)nR2 in which n is 4 to 7; and either (i) R1 is hydrogen, aryl, or CH2OH; and R2 is hydrogen, alkyl group having 1 to 4 carbon atoms, CH2OR3 in which R3 is hydrogen or an alkyl group having 1 to 4 carbon atoms, CH2N(R4R5) in which R4 and R5 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, or CO2H, or (ii) R1 and R2 together form a carbon—carbon single bond.

    摘要翻译: 公开了一种可用作碱性显影平版印刷版前体的可成像元件的方法,该前体不需要漂洗步骤或进一步的上胶步骤。 该方法包括用包含一种或多种以下结构的水溶性多羟基化合物的含水碱性显影胶溶液同时显影和涂胶成像元件:其中n为4至7; 并且(i)R 1是氢,芳基或CH 2 OH; 和R 2是氢,具有1至4个碳原子的烷基,CH 2 OR 3,其中R 3是氢或具有1至4个碳原子的烷基,CH 2 N(R 4 R 5) R 4和R 5各自独立地为氢或具有1至4个碳原子的烷基或CO 2 H,或(ii)R 1和R 2一起形成碳 - 碳单键。

    Process for Production of Lithographic Printing Plates

    公开(公告)号:US20080145790A1

    公开(公告)日:2008-06-19

    申请号:US11815578

    申请日:2006-02-01

    IPC分类号: G03F7/12

    CPC分类号: G03F7/322

    摘要: Process for the production of lithographic printing plates comprising (a) providing a lithographic substrate with a hydrophilic surface; (b) applying a negative working radiation-sensitive composition onto the hydrophilic surface, wherein the composition comprises: (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free-radical polymerization, (ii) at least one sensitizer which in the presence of at least one coinitiator and upon exposure to radiation of a wavelength of 300 to 750 to 1,100 nm initiates the free-radical polymerization of component (i); and (iii) at least one binder with acidic functional groups and is substantially not sensitive to the wavelength range of 480 to 750 nm; (c) image-wise exposure of the resulting negative working lithographic printing plate precursor to radiation selected from the wavelength range of 300 to 750 to 1,100 nm depending on the sensitizer or initiator system used; and (d) removing the non-irradiated areas by means of a treatment with an alkaline developer with a pH value in the range of 9 to 14 comprising (i) water, (ii) one or more alkali hydroxides in an amount sufficient for adjusting a pH value in the range of 9 to 14; and (iii) 1 to 30 wt.-% of at least one compound of formula (I) wherein R1, R2, R3 and R4 are each independently selected from C1-C12 alkyl groups and aryl groups, X is selected from —CH═CH—, —C≡C—, formula (II), formula (III), and formula (IV), n+m results in a value of 2 to 30 and p+q results in a value of 0 to 30, wherein in the case of p+q≠0 the ethylene oxide and propylene oxide units are present as blocks or randomly distributed.

    Method and apparatus for refreshment and reuse of loaded developer
    8.
    发明授权
    Method and apparatus for refreshment and reuse of loaded developer 失效
    用于装载显影剂的刷新和再利用的方法和装置

    公开(公告)号:US06855487B2

    公开(公告)日:2005-02-15

    申请号:US10044165

    申请日:2001-10-26

    IPC分类号: G03F7/30

    CPC分类号: G03F7/3071

    摘要: A method and an apparatus for the refreshment and reuse of loaded developers used in lithographic printing are disclosed. The pH of an aqueous, essentially silicate-free loaded developer is reduced to below about 11. Insoluble material is separated, and the pH increased to about 12.0 to 14.0 to produce a refreshed developer. The refreshed developer may be used to develop additional exposed printing plate precursors.

    摘要翻译: 公开了一种用于平版印刷中使用的加载显影剂的刷新和再利用的方法和装置。 将含水基本上不含硅酸盐的显影剂的pH降低到低于约11℃。分离不溶性物质,并且将pH增加至约12.0至14.0以产生刷新的显影剂。 刷新的显影剂可用于开发额外的暴露的印版前体。

    Developer for alkaline-developable lithographic printing plates
    9.
    发明授权
    Developer for alkaline-developable lithographic printing plates 失效
    碱性显影平版印刷版的显影剂

    公开(公告)号:US06645700B2

    公开(公告)日:2003-11-11

    申请号:US10274935

    申请日:2002-10-21

    IPC分类号: G03F730

    CPC分类号: G03F7/322

    摘要: An aqueous alkaline developing system for alkaline-developable lithographic printing plates and a method for its use are disclosed. The developing system comprises one or more water-soluble suppressors of the following structure: R1(CHOH)nR2 in which: n is 4 to 7; and either (i) R1 is hydrogen, aryl, or CH2OH; and R2 is alkyl group having 1 to 4 carbon atoms, CH2OR3 in which R3 is an alkyl group having 1 to 4 carbon atoms, CH2N(R4R5) in which R4 and R5 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, or CO2H; or (ii) R1 and R2 together form a carbon—carbon single bond. The developing system is especially suited for developing imageable elements useful as lithographic printing plates. The developing system is especially suited for use with elements in which (1) the imageable layer comprises at least one phenolic resin or at least one polymeric compound having pendent sulfonamide groups, and (2) the substrate is aluminum or and an aluminum alloy.

    摘要翻译: 公开了一种用于碱显影平版印刷版的水性碱性显影系统及其使用方法。 显影系统包含一种或多种以下结构的水溶性抑制剂:其中n为4至7; 和(i)R 1是氢,芳基或CH 2 OH; R 2为碳原子数为1〜4的烷基,R 3为碳原子数1〜4的烷基的CH 2 OR 3,R 4和R 5各自独立地为氢或碳原子数为1〜4的烷基的CH 2 N(R 4 R 5) ,或CO2H; 或(ii)R1和R2一起形成碳 - 碳单键。 显影系统特别适用于开发可用作平版印刷版的成像元件。 显影系统特别适用于其中(1)可成像层包含至少一种酚醛树脂或至少一种具有侧链磺酰胺基团的聚合化合物的元件,以及(2)基材是铝或铝合金。

    Process for developing exposed radiation-sensitive printing plate precursors
    10.
    发明授权
    Process for developing exposed radiation-sensitive printing plate precursors 失效
    用于开发暴露的辐射敏感印版前体的方法

    公开(公告)号:US06391530B1

    公开(公告)日:2002-05-21

    申请号:US09706180

    申请日:2000-11-03

    IPC分类号: G03F732

    CPC分类号: G03F7/3071

    摘要: A replenisher composition developing exposed radiation-sensitive printing plate precursors for plate/developer systems in which the electrical conductivity of the developer does not decrease to the same extend as the activity of the developer decreases or even increases is disclosed. A method for developing exposed radiation-sensitive printing plates using the replenisher composition is also disclosed.

    摘要翻译: 公开了一种用于印版/显影剂体系的显影曝光的感光印版前体的补充剂组合物,其中显影剂的导电性不会随显影剂的活性降低甚至增加而降低至相同的延伸。 还公开了使用补充剂组合物显影曝光的辐射敏感印版的方法。