GB191102075A - Manufacture of Paper suitable for Security Cheques and the like. - Google Patents

Manufacture of Paper suitable for Security Cheques and the like.

Info

Publication number
GB191102075A
GB191102075A GB191102075DA GB191102075A GB 191102075 A GB191102075 A GB 191102075A GB 191102075D A GB191102075D A GB 191102075DA GB 191102075 A GB191102075 A GB 191102075A
Authority
GB
United Kingdom
Prior art keywords
insoluble
paper
thiocyanate
produced
heavy metal
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
Other languages
English (en)
Inventor
Robert Charles Menzies
John Edington Aitken
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191102075A publication Critical patent/GB191102075A/en
Expired legal-status Critical Current

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
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
GB191102075D 1911-01-27 1911-01-27 Manufacture of Paper suitable for Security Cheques and the like. Expired GB191102075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191102075T 1911-01-27

Publications (1)

Publication Number Publication Date
GB191102075A true GB191102075A (en) 1912-01-29

Family

ID=32638930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191102075D Expired GB191102075A (en) 1911-01-27 1911-01-27 Manufacture of Paper suitable for Security Cheques and the like.

Country Status (3)

Country Link
DE (1) DE259850C (de)
FR (1) FR439426A (de)
GB (1) GB191102075A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188871A (en) * 1989-03-14 1993-02-23 The Wiggins Teape Group Limited Authenticatable security paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188871A (en) * 1989-03-14 1993-02-23 The Wiggins Teape Group Limited Authenticatable security paper

Also Published As

Publication number Publication date
FR439426A (fr) 1912-06-13
DE259850C (de) 1913-05-02

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