公开(公告)号：US20140354740A1

公开(公告)日：2014-12-04

申请号：US14361744

申请日：2012-11-20

Applicant: Agfa Graphics NV

Inventor： Stefaan Smet ,  Xavier Andre

IPC: C09D11/322 ,  B41J2/175 ,  B65B3/06 ,  C09D11/101 ,  C09D11/36

CPC classification number: C09D11/322 ,  B41J2/175 ,  B65B3/06 ,  C09D11/101 ,  C09D11/36

Abstract: A white inkjet ink includes a liquid ink vehicle, a first inorganic pigment with a refractive index greater than 1.60 having an average particle size A larger than 200 nm, and a second inorganic pigment having an average particle size B between 40 nm and 90 nm; wherein the number of particles per mm3 NAB complies with the relation: NAB=√{square root over (NA×NB)}≧7,500 particles/mm3 with NA representing the number of particles per mm3 having a particle size in the range of A−20 nm to A+20 nm, NB representing the number of particles per mm3 having a particle size in the range of B−20 nm to B+20 nm, the average particle size A is measured by transmission electron microscopy at a 13,500× magnification, and the average particle size B is measured by transmission electron microscopy at a 58,000× magnification.

Abstract translation: 白色喷墨油墨包括液体油墨载体，平均粒度A大于200nm的折射率大于1.60的第一无机颜料和平均粒度B为40nm至90nm的第二无机颜料; 其中每mm 3 NAB的颗粒数符合以下关系：NAB =√{平方根超过（NA×NB）}≥7,500颗粒/ mm 3，其中NA表示每mm 3的颗粒数，其颗粒尺寸在A- 20nm至A + 20nm，NB表示具有在B-20nm至B + 20nm范围内的粒度的每mm 3的颗粒数，平均粒径A通过透射电子显微镜以13500×放大倍率 ，通过透射电子显微镜以58,000×放大倍率测定平均粒径B.