| 摘要 |
This invention relates to a pigment particle product and a method for its preparation. According to the invention pigment particles, such as kaolin, natural calcium carbonate or titanium dioxide, and precipitated calcium carbonate are mixed together in an aqueous phase at pH 6 - 11, which causes the pigment particles to become coated with particles of precipitated calcium carbonate. The brightness of the product is excellent, and it is quite inexpensive to produce. |
