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公开(公告)号:US09962923B2
公开(公告)日:2018-05-08
申请号:US14917957
申请日:2014-09-29
Applicant: AGFA GRAPHICS NV
Inventor: Peter Hendrikx , Paul Callant , Marin Steenackers , Sam Verbrugghe
CPC classification number: B41C1/1091 , B41C1/1008 , B41C1/1025 , B41C2210/02 , B41C2210/04 , B41C2210/06 , B41C2210/08 , B41C2210/12 , B41C2210/22 , B41M5/28 , G03F7/105 , G03F7/322
Abstract: A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating containing a colorant precursor to form a lithographic image consisting of printing areas and non-printing areas, b) developing the plate precursor to remove the coating in the non-printing areas from the support, and c) drying the plate precursor, and d) subjecting the plate precursor to heat or radiation to induce a colour change of the coating in the printing areas, wherein before step b) the coating in the non-printing areas and the support are characterised by a CIE 1976 colour difference ΔE1 which is 5.0 or less, and after step d) the CIE 1976 colour difference ΔE2 between the coating in the printing areas and the non-printing areas is more than 6.8.
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公开(公告)号:US09156989B2
公开(公告)日:2015-10-13
申请号:US14360023
申请日:2012-11-21
Applicant: Agfa Graphics NV
Inventor: Johan Loccufier , Nicolas Vriamont , Paul Callant
IPC: C09D11/02 , C09B67/00 , C09D11/101 , C09D11/322
CPC classification number: C09B68/4257 , C09B67/0009 , C09B67/0086 , C09D11/101 , C09D11/322 , C09D11/36
Abstract: A method for preparing a surface modified organic pigment includes the steps of a) reacting the organic pigment in an aromatic hydrocarbon solvent with a surface modifying reagent to form a surface modified organic pigment; and b) washing and drying the surface modified organic pigment; wherein the surface modifying reagent is represented by Formula (I): wherein, X is selected from the group consisting of O, S and N—R3; Y is selected from the group consisting of —O—, and NR4; R1 to R4 are each independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkynyl group, a -aralkyl group, an alkaryl group, and an aryl group and s heteroaryl group; with the proviso that when Y—R1 is different from OH that at least one of R2 to R4 is substituted by at least one functional group having a pKa between 2.5 and 9.
Abstract translation: 一种制备表面改性有机颜料的方法包括以下步骤:a)使芳烃溶剂中的有机颜料与表面改性剂反应形成表面改性有机颜料; 和b)洗涤和干燥表面改性有机颜料; 其中所述表面改性剂由式(I)表示:其中X选自O,S和N-R 3; Y选自-O - 和NR 4; R 1至R 4各自独立地选自氢,烷基,烯基,炔基, - 芳烷基,烷芳基和芳基和杂芳基; 条件是当Y-R 1不同于OH时,R 2至R 4中的至少一个被至少一个pKa在2.5和9之间的官能团取代。
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公开(公告)号:US20140326164A1
公开(公告)日:2014-11-06
申请号:US14360023
申请日:2012-11-21
Applicant: Agfa Graphics NV
Inventor: Johan Loccufier , Nicolas Vriamont , Paul Callant
CPC classification number: C09B68/4257 , C09B67/0009 , C09B67/0086 , C09D11/101 , C09D11/322 , C09D11/36
Abstract: A method for preparing a surface modified organic pigment includes the steps of a) reacting the organic pigment in an aromatic hydrocarbon solvent with a surface modifying reagent to form a surface modified organic pigment; and b) washing and drying the surface modified organic pigment; wherein the surface modifying reagent is represented by Formula (I): wherein, X is selected from the group consisting of O, S and N—R3; Y is selected from the group consisting of —O and NR4; R1 to R4 are each independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkynyl group, a -aralkyl group, an alkaryl group, and an aryl group and s heteroaryl group; with the proviso that when Y—R1 is different from OH that at least one of R2 to R4 is substituted by at least one functional group having a pKa between 2.5 and 9.
Abstract translation: 一种制备表面改性有机颜料的方法包括以下步骤:a)使芳烃溶剂中的有机颜料与表面改性剂反应形成表面改性有机颜料; 和b)洗涤和干燥表面改性有机颜料; 其中所述表面改性剂由式(I)表示:其中X选自O,S和N-R 3; Y选自-O和NR4; R 1至R 4各自独立地选自氢,烷基,烯基,炔基, - 芳烷基,烷芳基和芳基和杂芳基; 条件是当Y-R 1不同于OH时,R 2至R 4中的至少一个被至少一个pKa在2.5和9之间的官能团取代。
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