ES473785A1 - Procedure for obtaining a paper that reacts to counterfeit by chemical agents. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for obtaining a paper that reacts to counterfeit by chemical agents. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES473785A1
ES473785A1 ES473785A ES473785A ES473785A1 ES 473785 A1 ES473785 A1 ES 473785A1 ES 473785 A ES473785 A ES 473785A ES 473785 A ES473785 A ES 473785A ES 473785 A1 ES473785 A1 ES 473785A1
Authority
ES
Spain
Prior art keywords
reacts
translation
paper
obtaining
machine
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.)
Expired
Application number
ES473785A
Other languages
Spanish (es)
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.)
VOIRON PAPETERIES
Original Assignee
VOIRON PAPETERIES
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
Priority claimed from FR7731671A external-priority patent/FR2406027A1/en
Priority claimed from FR7823652A external-priority patent/FR2432576A2/en
Application filed by VOIRON PAPETERIES filed Critical VOIRON PAPETERIES
Publication of ES473785A1 publication Critical patent/ES473785A1/en
Expired legal-status Critical Current

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Abstract

Process for obtaining a paper that reacts to falsification by chemical agents of the type glued on both sides and which comprises in its mass and/or its surface a reactive product in a basic medium, characterized in that it essentially comprises constituting a composition formed by approximately 85% by weight. % cellulose fiber and 15% mineral fillers with approximately 0.2% sizing agents, 0.4% alumina sulfate and 0.1% coloring matters, which basically contains 0.2 to 1% of its reactive product in basic medium selected from the nitro derivatives of the phenol of the general formula i. (Machine-translation by Google Translate, not legally binding)
ES473785A 1977-10-14 1978-09-29 Procedure for obtaining a paper that reacts to counterfeit by chemical agents. (Machine-translation by Google Translate, not legally binding) Expired ES473785A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7731671A FR2406027A1 (en) 1977-10-14 1977-10-14 Security paper treated with a nitrophenol - showing, in a range of colours from yellow to violet, any attempt at alteration using alkaline media
FR7823652A FR2432576A2 (en) 1978-08-02 1978-08-02 Forging-resistant paper for receipts and official documents - contg. nitrophenol deriv. reacting in basic medium (NL 18.4.79)

Publications (1)

Publication Number Publication Date
ES473785A1 true ES473785A1 (en) 1979-04-16

Family

ID=26220269

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473785A Expired ES473785A1 (en) 1977-10-14 1978-09-29 Procedure for obtaining a paper that reacts to counterfeit by chemical agents. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
AT (1) AT370150B (en)
ES (1) ES473785A1 (en)

Also Published As

Publication number Publication date
ATA665778A (en) 1982-07-15
AT370150B (en) 1983-03-10

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Legal Events

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FD1A Patent lapsed

Effective date: 20000201