Patent ID: 9023472
Filing Date: 2015-05-05
Classification: B41M,B82Y,C01P,C09C,C09D,Y10T

Abstract:
1. An aqueous ink white pigment comprising: a metal compound (1) which satisfies the following conditions of (A), (B), and (C): (A) The metal compound (1) includes titanium dioxide, and a metal compound (2) where a refractive index at a wavelength of 550 nm is 1.60 or more and 2.45 or less, when the total of the titanium dioxide and the metal compound (2) is 100 wt %, the content of the titanium dioxide is 50 wt % or more and 99 wt % or less and the content of the metal compound (2) is 1 wt % or more and 50 wt % or less; (B) The peak value of the volume particle size distribution of the metal compound (1) which is measured with a dynamic light scattering method is in a range of 100 to 700 nm; (C) The pore volume of the metal compound (1) which is calculated with the BJH (Barrett-Joyner-Halenda) method is 0.1 ml/g or more and 0.65 ml/g or less.