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    • 6. 发明申请
    • Optical Brightening of Substrates for Ink Jet Printing
    • 喷墨印刷基板的光学增白
    • US20080191169A1
    • 2008-08-14
    • US11579011
    • 2005-04-25
    • Peter RohringerRobert HochbergOliver BechererStéphane Biry
    • Peter RohringerRobert HochbergOliver BechererStéphane Biry
    • C09K11/06
    • B41M5/52B41M5/5218B41M5/5227B41M5/5236B41M5/5245B41M5/5254
    • The invention relates to a composition for optical brightening of substrates suitable for ink jet printing, comprising a) a fluorescent whitening agent of the formula (1): wherein X1, X2, X3 and X4 each, independent of the other, represent —NR1 R2 or —OR3, wherein R, and R2 are, independently of each other, hydrogen, cyano, a C,-C4alkyl group, which is unsubstituted or substituted by one or two of the following residues selected from the group consisting of C,-C4alkoxy, hydroxy, carboxyl or a salt thereof (—CO2M), cyano, carbonamido, thiol, guanidine, substituted or unsubstituted phenyl, unsubstituted or C.-C4alkyl-substituted C5C8cycloalkyl, halogen, a heterocycle and a sulphonic acid residue and wherein the carbon chain of an alkyl group having two, three or four carbon atoms can be interrupted by oxygen, or, alternatively, a C5-C7cycloalkyl group or R, and R2, together with the nitrogen atom linking them, complete a 5- or 6-membered heterocyclic ring; R3 represents C,-C4represents H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl and/or C2-C4hydroxyalkyl or mixtures of fluorescent whitening agents of formula (1); b) a catatonic polymer; c) water and, optionally least one pigment and/or at least one further auxiliary, methods of use of the composition and substrates that have been treated therewith.
    • 本发明涉及适用于喷墨印刷的基材的光学增白组合物,其包含a)式(1)的荧光增白剂:其中X 1,X 2, >,X 3和X 4各自独立地表示-NR 1 R 2 - 或 - OR 3,其中R 1和R 2彼此独立地为氢,氰基,C 1 -C 4烷基,其未被取代或被一个或两个 的选自C 1 -C 4烷氧基,羟基,羧基或其盐(-CO 2 M),氰基,碳酰氨基,硫醇,胍,取代或未取代的苯基,未取代的 或C-C 4烷基取代的C 5 -C 8环烷基,卤素,杂环和磺酸残基,并且其中具有两个,三个或三个 四个碳原子可以被氧中断,或者可选地,C5-C7环烷基或R和R2 与连接它们的氮原子一起形成5或6元杂环; R 3表示C 1 -C 4表示H,Na,Li,K,Ca,Mg,铵或铵,其是单 - ,二 - ,三 - 或 由C 1 -C 4烷基和/或C 2 -C 4羟烷基或式(1)的荧光增白剂的混合物四取代; b)紧张性聚合物; c)使用已用其处理的组合物和底物的水和任选的至少一种颜料和/或至少一种另外的辅助方法。