CO4560504A1 - METHOD FOR PRODUCING SECURITY PAPER - Google Patents

METHOD FOR PRODUCING SECURITY PAPER

Info

Publication number
CO4560504A1
CO4560504A1 CO96012131A CO96012131A CO4560504A1 CO 4560504 A1 CO4560504 A1 CO 4560504A1 CO 96012131 A CO96012131 A CO 96012131A CO 96012131 A CO96012131 A CO 96012131A CO 4560504 A1 CO4560504 A1 CO 4560504A1
Authority
CO
Colombia
Prior art keywords
film
paper
resistance
dryed
boiled
Prior art date
Application number
CO96012131A
Other languages
Spanish (es)
Inventor
Paul Howland
Jonathan Paul Foulkes
Original Assignee
Portals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Portals Ltd filed Critical Portals Ltd
Publication of CO4560504A1 publication Critical patent/CO4560504A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper

Abstract

1. UN METODO PARA PRODUCIR PAPEL DE SEGURIDAD QUE INCLUYE UN PAPEL DEL SEGURIDAD, DICHO METODO COM- PRENDE FORMAR PAPEL EN UN ESTADO HUMEDO, DICHO P PAPEL INCORPORA UNA O MAS CARACTERISTICAS DE SEGURIDAD, APLICAR AL PAPEL UN AGENTE DIMENSIONADO LUEGO APLICAR A UNO O A AMBOS LADOS DEL PAPEL DI- MENSIONADO UN RECUBRIMIENTO QUE COMPRENDE UN PILI- URETANO NO PIGMENTADO QUE PUEDE OPCIONALMENTE COMPRENDER UN ADITIVO FUNCIONAL SIEMPRE QUE SU PRESENCIA NO INCREMENTE LA OPACIDAD DEL PAPEL EN MAS DE 1%, LUEGO SECAR EL PAPEL, DICHA COMPOSICION DE RECUBRIMIENTO ESTANDO TAL QUE SE SUMINISTRA UNA PELICULA, CUANDO SE FUNDE SOBRE UNA SUPERFICIE DE VIDRIO, QUE TIENE UNA DUREZA KOING ENTRE 15 A 130 S, Y TAMBIEN PASA EL ESTADO DE RESISTENCIA EN AGUA SEGUN SE DEFINE POR LAS SIGUIENTES ETAPAS: A) FORMULACION TOTAL A SER USADA EN EL RECUBRIMI- TO ES ESTAMPADA SOBRE UNA PLACA DE VIDRIO TAL QUE SE PRODUCE UNA PELICULA CUANDO UN PESO SECO DE 80 g/m^2. B) LA PELICULA ES INICIALMENTE SECADA A 23 GRADOS CENTIGRADOS. UNA VEZ QUE ES SECA AL TACTO ES SECA- DA DURANTE UNA HORA ADICIONAL A 80 GRADOS CENT. C) LA PELICULA ES PESADA ANTES DE SER HUMEDECIDA Y ENSAYADA EN SU RESISITENCIA A LA TENSION, MODULO YOUNG Y VISUALMENTE VERIFICACDA PARA CUALQUIER CAMBIOEN SU TRANSPARENCIA. D)UNA MUESTRA DE LA PELICULA ES HERVIDA EN AGUA CONTENIDO 10g/litro DE NaA CO3 DURANTE 30 MINUTOS. E) LA PELICULA ES ENTONCES ENJUAGADA EN AGUA FRIA Y LOS PASOS B) Y C) SON ENTONCES REPETIDOS; CUANDO LA PELICULA ES SECADA Y REPRESADA LA PELICULA CUM- LOS SIGUIENTES CRITERIOS: I. LA RESISTENCIA A LA TENSION EN HUMEDO Y EL MODULO YOUNG DEDE LA PELICULA HERVIDA NO ES MENOS DE 90% DE LA RESISTENCIA A LA TENSION EN HUMEDO inicial de la pelicula y el modulo young inicial. ii. LA PELICULA NO MUESTRA NINGUNA PERDIDA P PERCEPTIBLE DE TRANSPARENCIA, Y III. EL PESO SECADO DE LA PELICULA NO ES MAS QUE EL 98% DEL PESO ORIGINAL. O1. A METHOD FOR PRODUCING SAFETY PAPER INCLUDING A SAFETY PAPER, SUCH A METHOD INCLUDES FORMING PAPER IN A HUMID STATE, SUCH P PAPER INCORPORATES ONE OR MORE SAFETY CHARACTERISTICS, A DIFFERENT APPLICANT. BOTH SIDES OF THE PAPER DIMENSIONED A COATING THAT INCLUDES A NON-PIGMENTED PILI- URETHANE THAT CAN OPTIONALLY UNDERSTAND A FUNCTIONAL ADDITIVE WHILE ITS PRESENCE DOES NOT INCREASE THE PAPER'S PAPER BY MORE THAN 1%, THEN DRYING THE PAPER, SUCH AS A FILM IS SUPPLIED, WHEN IT IS MELTED ON A GLASS SURFACE, IT HAS A KOING HARDNESS BETWEEN 15 TO 130 S, AND IT ALSO PASSES THE STATE OF RESISTANCE IN WATER AS DEFINED BY THE FOLLOWING STAGES: A) TOTAL FORMULATION TO BE USED IN THE COATING IS PRINTED ON A GLASS PLATE SO THAT A FILM IS PRODUCED WHEN A DRY WEIGHT OF 80 g / m ^ 2. B) THE FILM IS INITIALLY DRYED AT 23 DEGREES DEGREE. ONCE IT IS DRY TO TOUCH IT IS DRY FOR AN ADDITIONAL HOUR AT 80 DEGREES CENT. C) THE FILM IS HEAVY BEFORE BEING DAMPED AND TESTED IN ITS RESISTANCE TO TENSION, YOUNG MODULE AND VISUALLY VERIFIED FOR ANY CHANGE IN ITS TRANSPARENCY. D) A SAMPLE OF THE FILM IS BOILED IN WATER CONTENT 10g / liter OF NaA CO3 FOR 30 MINUTES. E) THE FILM IS THEN RINSED IN COLD WATER AND STEPS B) AND C) ARE THEN REPEATED; WHEN THE FILM IS DRYED AND REPRINTED THE FILM CUM- THE FOLLOWING CRITERIA: I. THE RESISTANCE TO THE BOILED TENSION AND THE YOUNG MODULE OF THE FILM BOILED IS NOT LESS THAN 90% OF THE RESISTANCE TO THE MOIST TENSION OF THE FILM and the initial young module. ii. THE FILM SHOWS NO PERCEPTIBLE LOSS OF TRANSPARENCY, AND III. THE DRYED WEIGHT OF THE FILM IS NOT MORE THAN 98% OF THE ORIGINAL WEIGHT. OR

CO96012131A 1995-03-13 1996-03-12 METHOD FOR PRODUCING SECURITY PAPER CO4560504A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9505062.1A GB9505062D0 (en) 1995-03-13 1995-03-13 Securiy paper
GBGB9523838.2A GB9523838D0 (en) 1995-03-13 1995-11-22 Security paper

Publications (1)

Publication Number Publication Date
CO4560504A1 true CO4560504A1 (en) 1998-02-10

Family

ID=10771132

Family Applications (1)

Application Number Title Priority Date Filing Date
CO96012131A CO4560504A1 (en) 1995-03-13 1996-03-12 METHOD FOR PRODUCING SECURITY PAPER

Country Status (7)

Country Link
KR (1) KR100391850B1 (en)
CO (1) CO4560504A1 (en)
GB (2) GB9505062D0 (en)
RO (1) RO115892B1 (en)
TW (1) TW296411B (en)
UA (1) UA44308C2 (en)
ZA (1) ZA961899B (en)

Also Published As

Publication number Publication date
TW296411B (en) 1997-01-21
RO115892B1 (en) 2000-07-28
KR19980702528A (en) 1998-07-15
GB9505062D0 (en) 1995-05-03
GB9523838D0 (en) 1996-01-24
ZA961899B (en) 1996-09-12
KR100391850B1 (en) 2003-11-14
UA44308C2 (en) 2002-02-15

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