ZA946600B - Improvement in security features for paper - Google Patents

Improvement in security features for paper

Info

Publication number
ZA946600B
ZA946600B ZA946600A ZA946600A ZA946600B ZA 946600 B ZA946600 B ZA 946600B ZA 946600 A ZA946600 A ZA 946600A ZA 946600 A ZA946600 A ZA 946600A ZA 946600 B ZA946600 B ZA 946600B
Authority
ZA
South Africa
Prior art keywords
paper
improvement
security features
security
features
Prior art date
Application number
ZA946600A
Other languages
English (en)
Inventor
Paul Howland
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 ZA946600B publication Critical patent/ZA946600B/xx

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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
    • D21H23/28—Addition before the dryer section, e.g. at the wet end or press section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/10—Watermarks
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/44—Watermarking devices
    • 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
ZA946600A 1993-09-30 1994-08-30 Improvement in security features for paper ZA946600B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9320206A GB2283026B (en) 1993-09-30 1993-09-30 Improvement in security features for paper

Publications (1)

Publication Number Publication Date
ZA946600B true ZA946600B (en) 1995-04-03

Family

ID=10742794

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA946600A ZA946600B (en) 1993-09-30 1994-08-30 Improvement in security features for paper

Country Status (5)

Country Link
CN (1) CN1106091A (xx)
AU (1) AU7622394A (xx)
GB (1) GB2283026B (xx)
WO (1) WO1995009276A1 (xx)
ZA (1) ZA946600B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9612496D0 (en) * 1996-06-14 1996-08-14 De La Rue Thomas & Co Ltd Security device
DE19829004A1 (de) * 1998-06-30 2000-01-05 Giesecke & Devrient Gmbh Sicherheitspapier
US6368455B1 (en) * 2001-05-31 2002-04-09 Appleton Papers Inc. Method for making security paper
IT1320079B1 (it) * 2000-10-25 2003-11-18 Cartiere Di Cordenons S P A Materiali cartacei filigranati stampabili con elevata qualita' distampa.
EP1398175B1 (en) * 2002-09-13 2011-05-18 Agfa-Gevaert Carrier of information bearing a watermark
FR2849657B1 (fr) * 2003-01-03 2005-07-15 Arjo Wiggins Feuille possedant un aspect iridescent, et son procede de fabrication
GB0325729D0 (en) 2003-11-04 2003-12-10 Rue De Int Ltd Security device
FR2897078B1 (fr) * 2006-02-09 2011-08-19 Arjowiggins Materiau en feuille comportant au moins un filigrane avec une nuance coloree.
GB0714141D0 (en) 2007-07-19 2007-08-29 Rue De Int Ltd security device
FR2922561B1 (fr) 2007-10-22 2009-12-11 Arjowiggins Licensing Sas Feuille de securite comprenant une marque de securite iridescente
FR2945551B1 (fr) * 2009-05-13 2011-08-26 Oberthur Technologies Procede de fabrication d'un element de securite pour document de securite.
CN111270559A (zh) * 2019-09-09 2020-06-12 华南理工大学 一种纳米纤维素/纳米氧化锌多功能保护液及其制备方法与对纸质文献保护的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL11011C (xx) * 1914-01-22
US3985927A (en) * 1975-02-24 1976-10-12 Nekoosa Edwards Paper Company, Inc. Compositions and method for producing a chemical watermark on finished paper products
GB1489084A (en) * 1975-10-28 1977-10-19 Tullis Russell Co Ltd Simulated watermarking
DE3024394A1 (de) * 1980-06-28 1982-01-21 Letron GmbH, 8750 Aschaffenburg Verfahren zur herstellung eines kunststoff-furnieres in einer papiermaschine
FR2524026B1 (fr) * 1982-03-25 1985-09-13 Arjomari Prioux Matieres cellulosiques transparentisees et leurs applications, leur procede de fabrication et les compositions de transparentisation correspondantes
ZA871104B (en) * 1986-02-24 1987-11-25 Moore Business Forms Inc Document bearing characteristic ink-printed indicia juxtaposed with corresponding characteristic synthetic watermarkk and method for producing same
GB8905471D0 (en) * 1989-03-10 1989-04-19 De La Rue Co Plc Sheet with security device
EP0490825B1 (de) * 1990-12-12 1995-03-15 - Sihl - Zürcher Papierfabrik An Der Sihl Sicherheitspapier für Banknoten oder dergl. und Verfahren zu seiner Herstellung
FR2670812B1 (fr) * 1990-12-21 1996-06-21 Arjomari Europ Feuille imprimable pour fabriquer des documents de securite comportant un moyen contre la contrefacon ou d'authentification.

Also Published As

Publication number Publication date
AU7622394A (en) 1995-04-18
GB2283026B (en) 1997-01-08
GB2283026A (en) 1995-04-26
GB9320206D0 (en) 1993-11-17
CN1106091A (zh) 1995-08-02
WO1995009276A1 (en) 1995-04-06

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