Reference

Pigment particle size and its effect on printing ink performance

Pigment particle size and its effect on printing ink performance. Vernardakis, Theordore G. (Sun Chem. Corp., Cincinnati, OH, USA). Am. Inkmaker, 62(2), 24-5, 28, 30, 32, 34, 42, 109-12 (English) 1984. CODEN: AMIKAK. ISSN: 0002-8916. DOCUMENT TYPE: Journal CA Section: 42 (Coatings, Inks, and Related Products) The use of SEM, TEM, light scattering, surface area anal., and x-ray diffraction to det. pigment particle size and size distribution was discussed. The methods are demonstrated on phthalocyanine blue [147-14-8], C.I. Pigment Blue [147-14-8], C.I. Pigment Yellow 74 [6358-31-2], C.I. Pigment Yellow 14 [5468-75-7], C.I. Pigment Yellow 73 [13515-40-7], Red Lake C [5160-02-1], Barium Red 2B [7585-41-3], Calcium Red 2B [7023-61-2], Barium Lithol Red [1103-38-4], and C.I. Pigment Violet 23 [6358-30-1].

Water-soluble solid writing materials

Water-soluble solid writing materials. (Mitsubishi Pencil Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59176369 A2 5 Oct 1984 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09D013-00. APPLICATION: JP 83-50113 25 Mar 1983. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) The title writing materials contain 5-40 wt.% polyethylene glycol (I) [25322-68-3] having 31000 av. mol. wt., nonionic surface-active agent, and colorant. The water-sol. materials are easily wiped off with a wet cloth and do not migrate to exterior materials. Thus, a mixt. of Seikafast Red 116 [1103-38-4] (org. pigment), Ti oxide, and talc were blended with a mixt. of cetyl alc., polyoxyethylene stearyl ether [9005-00-9], polyethylene glycol distearate [9005-08-7] and I (av. mol. wt. 20,000) 20 wt.% and molded to give a writing material which was easily wiped off a plastic board after 6 mo. The material did not migrate to exterior materials 3 yr after applying.