Reference

Hair lightening and/or coloring agent with reduced ammonia content

All Rights Reserved. Hair lightening and/or coloring agent with reduced ammonia content. Seiler, Martina; Dolhaine, Hans; Brueninghaus, Ulrike (Henkel Kgaa, Germany). Ger. Offen. DE 102006012575 A1 8 Feb 2007, 58pp. (German). (Germany). CODEN: GWXXBX. APPLICATION: DE 2006-102006012575 16 Mar 2006. DOCUMENT TYPE: Patent CA Section: 62 (Essential Oils and Cosmetics) The invention concerns hair dyes and/or bleaching agents that contain: (a) max. 2 wt./wt.% ammonia (calcn. is based on 100% ammonia); (b) 0.01-25 wt./wt.% of a substance selected from the group of (b1) silazanes and/or (b2) metal amides, imides or nitrides with the general formula Mn+(NH3-x)n/x; where M = I, II, III, IV main group metal and/or I, II, III, IV, V, VI, VII, VIII subgroup metal in the periodic system; n, x = 1, 2, 3. Thus a dye cream contained (wt./wt.%): C16-18 fatty alc. 8.1; C12-18 coco fatty alc. 2.7; Texapon NSO 5.0; Plantapon LGC 5.0; Eumulgin B1 0.5; Eumulgin B2 0.5; isostearic acid 2.0; myristic acid 0.5; potassium hydroxide (50%) 1.2; dyes 2.2; ammonia 25% 7.2; sodium sulfite 0.5; ascorbic acid 0.4; Turpinal SL 0.2; sodium water glass 0.5; perfume 0.5; propylne glycol 0.4; ammonium sulfate 0.5; water to 100. A developer included (wt./wt.%): ammonia 25% 0.62; dipicolinic acid 0.1; sodium pyrophosphate 0.03; Turpinal SL 1.5; Texapon NSO 2.0; Aculyn 33 A 12.0; hydrogen peroxide 30% 12; water to 100. Further a 1 wt./wt.% 1,1,1,3,3,3-hexamethyldisilazane was mixed with almond oil. 16867-03-1 is just another one chemical used in this study. A dyeing compn. included 60 g dye cream, 60 g developer and 1 g of the hexamethyldisilazane-oil mixt. .