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Pub. No.:    WO/2010/029329    International Application No.:    PCT/GB2009/051061
Publication Date: 18.03.2010 International Filing Date: 26.08.2009
G03C 1/73 (2006.01), G03F 7/00 (2006.01), G03F 7/025 (2006.01), B41M 5/28 (2006.01)
Applicants: DATALASE LTD. [--/GB]; Unit 3 Wheldon Road Widnes Cheshire WA8 8FW (GB) (For All Designated States Except US).
JARVIS, Anthony [GB/GB]; (GB)
Inventors: JARVIS, Anthony; (GB)
Agent: GILL JENNINGS & EVERY LLP; The Broadgate Tower 20 Primrose Street London EC2A 2ES (GB)
Priority Data:
0816543.3 10.09.2008 GB
0905785.2 02.04.2009 GB
Abstract: front page image
(EN)21 ABSTRACT A composition susceptible to changing colour upon the application of energy, wherein the composition comprises a colour former and a tinting colourant, wherein the tinting colourant has a complementary colour to that of the composition comprising the colour former without tinting colourant. Preferably, the composition 5 also comprises an energy absorbing additive. The invention also provides a method of improving contrast when a composition susceptible to changing colour is imaged.
(FR)L'invention concerne une composition susceptible de changer de couleur lors de l'application d'une énergie, l'invention comprenant un révélateur chromogène et un colorant de teinte, le colorant de teinte ayant une couleur complémentaire à celle de la composition comprenant le révélateur chromogène sans le colorant de teinte. De préférence, la composition comprend également un additif absorbeur d'énergie. L'invention concerne également un procédé d'amélioration de contraste lorsqu’une image d’une composition susceptible de changer de couleur est reproduite.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)