UV CURABLE INKJET INK SETS AND INKJET PRINTING METHODS
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机译:UV可固化喷墨墨水组和喷墨印刷方法
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摘要
A UV curable pigmented inkjet ink set comprising: one or more achromatic colour inkjet inks including a black inkjet ink containing a carbon black pigment; and five chromatic colour inkjet inks including: a first inkjet ink WR having a hue angle H* between 10° and 40° and a chroma C* between 30 and 80; a second inkjet ink WY having a hue angle H* between 65° and 85° and a chroma C* between 30 and 80; a third inkjet ink Y having a hue angle H* between 85° and 105° and a chroma C* larger than 80; a fourth inkjet ink C having a hue angle H* between 180° and 240° and a chroma C* between 30 and 80; and a fifth inkjet ink M having a hue angle H* between 300° and 360° and a chroma C* between 30 and 80; wherein the hue angle H* and the chroma C* were calculated from CIE L* a* b* coordinates determined on a polyethylene coated white paper for a 2º observer under a D50 light source; wherein the chromatic colour inkjet inks having a hue angle H* between 180° and 360° have a ratio T/P of thioxanthone compound to pigment complying with the relationship: 0.0 ≤ T/P ≤ 0.2, wherein T represents the wt% of thioxanthone compound and P represents the wt% of pigment, both wt% based on the total weight of the inkjet ink.
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机译:紫外线固化着色素喷墨墨水组,包括:一种或多种无彩色喷墨油墨,包括含有炭黑颜料的黑色喷墨墨水;和五种色彩喷墨油墨包括:第一个喷墨墨水WR,色调角H *在10°和40°之间,在30到80之间的色度C *之间;具有色调角H *的第二喷墨墨水WY在65°和85°之间,30至80之间的色度C *;第三喷墨墨水Y具有85°和105°之间的色调角H *,以及大于80的色度C *;第四喷墨墨水C的色调角H *在180°和240°之间,30至80之间的色度C *;和第五喷墨油墨m具有色调角H * 300°和360°,色度C *在30到80之间;其中色调角H *和色度C *由CIE L * A * B *坐标计算,用于在D50光源下的2°观察器上测定的聚乙烯涂层白纸;其中具有180°和360°之间的色调墨水墨水的色调喷墨油墨具有噻吨酮化合物的比率T / p与符合关系的颜料:0.0≤t/p≤0.2,其中T代表噻吨酮的wt%化合物和P表示颜料的WT%,WT%,WT%,基于喷墨油墨的总重量。
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