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1. (WO2010077837) PLANCHETTES CONTAINING INCONSTANT PIGMENT OR DYE FOR SECURE ARTICLE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/077837 International Application No.: PCT/US2009/067964
Publication Date: 08.07.2010 International Filing Date: 15.12.2009
IPC:
D21H 21/40 (2006.01) ,B42D 15/00 (2006.01) ,G07D 7/12 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21
Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties
14
characterised by function or properties in or on the paper
40
Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
B PERFORMING OPERATIONS; TRANSPORTING
42
BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
D
BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
15
Printed matter of special format or style not otherwise provided for
G PHYSICS
07
CHECKING-DEVICES
D
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7
Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers, e.g. for segregating those which are unacceptable or alien to a currency
06
using wave or particle radiation
12
Visible light, infra-red or ultra-violet radiation
Applicants:
SUN CHEMICAL CORPORATION [US/US]; 35 Waterview Blvd. Parsippany, NJ 07054, US (AllExceptUS)
POSTLE, Stephen [US/US]; US (UsOnly)
LEE, Caspar [GB/GB]; GB (UsOnly)
KLIR, Nicole [GB/GB]; GB (UsOnly)
Inventors:
POSTLE, Stephen; US
LEE, Caspar; GB
KLIR, Nicole; GB
Agent:
BAILEY, Matthew, T.; McKenna Long & Aldridge, LLP 1900 K Street, N.W. Washington, DC 20006, US
Priority Data:
61/122,92216.12.2008US
Title (EN) PLANCHETTES CONTAINING INCONSTANT PIGMENT OR DYE FOR SECURE ARTICLE
(FR) PLANCHETTES CONTENANT UN PIGMENT OU UN COLORANT VARIABLE POUR ARTICLE SÉCURISÉ
Abstract:
(EN) The present invention describes planchettes incorporated into the substrate of secure articles, such as bank notes, passports and tax stamps. These planchettes may take various forms (such as fibers), regular shapes (such as circles), irregular shapes (such as polygons) or as threads or stripes running throughout the length of the document and are colored with an ultra color inconstant pigment or dye, or a non-color inconstant pigment or dye, or combination thereof. Ultra color inconstant pigments and dyes appear as markedly different colors under light sources with differing spectral distributions. The planchettes are coated with an ink containing a color inconstant pigment and function as a method of authenticating the document. When the light source that the article is viewed under is changed, the planchettes change color at the same time. The effect is striking and proves the document to be genuine. This allows for facile authentication without the need of complex or costly equipment. The bulk of the substrate may also be colored to match the appearance of the planchettes under one illuminant, so that they only become visible when the spectral characteristics of the light source are changed.
(FR) La présente invention concerne des planchettes incorporées dans le substrat d'articles sécurisés, tels que des billets de banque, des passeports et des timbres fiscaux. Ces planchettes peuvent prendre une diversité de formes (par exemple des fibres), des formes régulières (par exemple des cercles), des formes irrégulières (par exemple des polygones) ou peuvent se présenter sous la forme de fils ou de bandes qui s'étendent sur toute la longueur du document et qui sont colorées avec un pigment ou un colorant variable ultra coloré, ou un pigment ou un colorant variable incolore, ou une combinaison de ceux-ci. La couleur des pigments et des colorants variables ultra colorés apparaît comme une couleur nettement différente sous des sources de lumière de distributions spectrales différentes. Les planchettes sont revêtues d'une encre contenant un pigment variable coloré et sert de procédé d'authentification du document. Lorsque la source de lumière sous laquelle l'article est examiné est modifiée, les planchettes changent de couleur en même temps. L'effet est frappant et prouve que le document est authentique. Ceci permet une authentification facile sans nécessité d'équipement complexe ou coûteux. La masse du substrat peut également être colorée de façon à correspondre à l'aspect des planchettes sous un éclairage, de telle sorte qu'elles ne deviennent visibles que lorsque les caractéristiques spectrales de la source de lumière sont modifiées.
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 (ARIPO) (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)