Reference

Dye preparations

Dye preparations. Knoechel, Gerhard; Scheffler, Heinz; Schmidt, Freimut; Noack, Horst; Schmidt, Juergen; Thurm, Hans; Puhlmann, Guenter; Zimmermann, Renate; Kauschke, Adolf; Keil, Alfred (VEB Chemiekombinat Bitterfeld, Ger. Dem. Rep.). Ger. (East) DD 212262 A1 8 Aug 1984, 9 pp. (German). (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C09B067-00; C09B067-24; C09B067-36. APPLICATION: DD 82-246299 21 Dec 1982. DOCUMENT TYPE: Patent CA Section: 40 (Textiles) Section cross-reference(s): 41 Dust-free, easily wettable and sol. anionic or vattable dye compns. are prepd. which contain, in addn. to dye and the usual additives, 0.5-10 wt.% (based on dye) of a combination of (a) a mixt. of approx. equal parts C12-18 alkane and Me(CH2)11-17SO2NH2 and/or (b) a mixt. of approx. equal parts C12-18 alkane and Me(CH2)11-17SO2NHCH2CO2H, (c) urea [57-13-6], and optionally (d) an ethoxylated alkylphenol. The compns. can be used to prep. dyebaths and print pastes. For example, 20 g C.I. Sulfur Black 1 [1326-82-5] was milled with 0.6 g mixt. of component a 77, H2O 11.5, and urea 11.5 g to give a dust-free, water-wettable dye compn. Compns. contg. direct or reactive dyes were also prepd.

Copy system comprising microencapsulated colorant

Copy system comprising microencapsulated colorant. Hosie, Lynn; Agarwal, Niraj; Sie, Maria W.; Whitley, David A. (Sandoz Ltd., Switz.). 1326-82-5 and 1326-86-9 are also occured in this study. U.S. US 5585051 A 17 Dec 1996, 13 pp. (English). (United States of America). CODEN: USXXAM. CLASS: ICM: B01J013-02. ICS: B01J013-04. NCL: 264004100. APPLICATION: US 1995-396804 2 Mar 1995. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Microcapsules contg. a soln. or dispersion of a colorant, esp. a soln. of an oil-solubilized sulfur dye, in an org. liq. having a vapor pressure below 20 mm Hg at 25° can be coated on a sheet of paper for use in pressure-sensitive carbonless copy system. The soln. of the oil-solubilized sulfur dye, i.e. (1) a colored product of the oxidn. of a leuco sulfur dye, leuco sulfurized vat dye, or a reaction product of a leuco dye or sulfurized vat dye with a cationic compd. or (2) a colored reaction product of a solubilized sulfur dye with a cationic compd. also constitutes an aspect of the invention as do microcapsules whose walls contain an opacifying agent incorporated therein. .