Pigment mixture comprising kaolin and titania for use in paper-making

Pigment mixture comprising kaolin and titania for use in paper-making

  • CN 101,120,058 B
  • Filed: 01/17/2006
  • Issued: 05/27/2015
  • Est. Priority Date: 01/14/2005
  • Status: Active Grant
First Claim
Patent Images

1. a high performance pigment system, by following combinations of substances being obtained, it comprisesThe heated mixt comprising high refractive index pigment and dehydrated kaolin of (a) 1 ~ 60 % by weight;

  • WithAt least one in the rutile titanium dioxide of (b) 40 ~ 99 % by weight and anatase titanium dioxide,Wherein said high refractive index pigment comprises lithopone and has the specific refractory power higher than 1.8, andWherein when described dehydrated kaolin contains metakaolin, described heated mixt have higher than 90% GE brightness and be less than 11 Hunter yellowness index, andWhen described dehydrated kaolin contains complete calcined kaolin, described heated mixt have higher than 90% GE brightness and be less than 7 Hunter yellowness index.

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