著者

クリーランド A. J. スレッペティス R. A.

出版者

JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.47, no.3, pp.340-346, 1993

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A novel technique has been used to quantitatively characterize the shape of kaolin clay pigments. The technique is based on the divergence of particle size measurements made using two different methods, namely sedimentation and light scattering.<BR>Two sets of kaolin pigments, one delaminated and one non-delaminated, were prepared and characterized using this technique. The shape factors were higher for the delaminated series, indicating that these pigments contained platier particles. Finally, the pigments were evaluated in both LWC rotogravure and offset coating formulations in order to derive quantitative relationships between performance properties, shape factor, and particle size.