ES2066685A1 - Process for processing paper, protecting it against unauthorized photocopying - Google Patents

Process for processing paper, protecting it against unauthorized photocopying

Info

Publication number
ES2066685A1
ES2066685A1 ES09202162A ES9202162A ES2066685A1 ES 2066685 A1 ES2066685 A1 ES 2066685A1 ES 09202162 A ES09202162 A ES 09202162A ES 9202162 A ES9202162 A ES 9202162A ES 2066685 A1 ES2066685 A1 ES 2066685A1
Authority
ES
Spain
Prior art keywords
protecting
against unauthorized
processing paper
photocopying
unauthorized photocopying
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES09202162A
Other languages
Spanish (es)
Other versions
ES2066685B1 (en
Inventor
Fernandez Alberto Aguayo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teledata S A
Original Assignee
Teledata S A
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 Teledata S A filed Critical Teledata S A
Priority to ES9202162A priority Critical patent/ES2066685B1/en
Publication of ES2066685A1 publication Critical patent/ES2066685A1/en
Application granted granted Critical
Publication of ES2066685B1 publication Critical patent/ES2066685B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

Process characterized in that the paper, consisting of a homogeneous layer of cellulose-fibre structure, is thereby inked by means of any system (direct or indirect) on at least one of its faces with a photochromic ink which is invisible to the human eye but which can be activated within the spectrum of light sources which can be used in photocopying machines. Applicable to the papermaking industry.
ES9202162A 1992-10-28 1992-10-28 PROCEDURE FOR TREATING PAPER, PROTECTING IT AGAINST UNAUTHORIZED PHOTOCOPIES. Expired - Lifetime ES2066685B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9202162A ES2066685B1 (en) 1992-10-28 1992-10-28 PROCEDURE FOR TREATING PAPER, PROTECTING IT AGAINST UNAUTHORIZED PHOTOCOPIES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9202162A ES2066685B1 (en) 1992-10-28 1992-10-28 PROCEDURE FOR TREATING PAPER, PROTECTING IT AGAINST UNAUTHORIZED PHOTOCOPIES.

Publications (2)

Publication Number Publication Date
ES2066685A1 true ES2066685A1 (en) 1995-03-01
ES2066685B1 ES2066685B1 (en) 1995-11-16

Family

ID=8278589

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9202162A Expired - Lifetime ES2066685B1 (en) 1992-10-28 1992-10-28 PROCEDURE FOR TREATING PAPER, PROTECTING IT AGAINST UNAUTHORIZED PHOTOCOPIES.

Country Status (1)

Country Link
ES (1) ES2066685B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122545A (en) * 1982-06-26 1984-01-18 Coated Papers Limited Security paper
EP0302774A2 (en) * 1987-07-30 1989-02-08 Vicat Anticopying printing-writing medium and associated method
EP0327788A2 (en) * 1988-01-12 1989-08-16 Sicpa Holding S.A. Reversibly photochromic printing inks
WO1992012292A1 (en) * 1991-01-10 1992-07-23 Fabrica Nacional De Moneda Y Timbre Method for obtaining security paper and security paper obtained by such method
ES1021874U (en) * 1990-11-28 1993-03-01 Artes Graficas Lerchundi, S.A. Enhanced check. (Machine-translation by Google Translate, not legally binding)
ES1022883U (en) * 1992-10-28 1993-06-01 Teledata, S.A. Security paper for protection against unauthorized copying texts. (Machine-translation by Google Translate, not legally binding)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122545A (en) * 1982-06-26 1984-01-18 Coated Papers Limited Security paper
EP0302774A2 (en) * 1987-07-30 1989-02-08 Vicat Anticopying printing-writing medium and associated method
EP0327788A2 (en) * 1988-01-12 1989-08-16 Sicpa Holding S.A. Reversibly photochromic printing inks
ES1021874U (en) * 1990-11-28 1993-03-01 Artes Graficas Lerchundi, S.A. Enhanced check. (Machine-translation by Google Translate, not legally binding)
WO1992012292A1 (en) * 1991-01-10 1992-07-23 Fabrica Nacional De Moneda Y Timbre Method for obtaining security paper and security paper obtained by such method
ES1022883U (en) * 1992-10-28 1993-06-01 Teledata, S.A. Security paper for protection against unauthorized copying texts. (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
ES2066685B1 (en) 1995-11-16

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Legal Events

Date Code Title Description
FA2A Application withdrawn

Effective date: 19970314