GB460405A - Improvements in and relating to the manufacture and production of safety paper - Google Patents

Improvements in and relating to the manufacture and production of safety paper

Info

Publication number
GB460405A
GB460405A GB14325/36A GB1432536A GB460405A GB 460405 A GB460405 A GB 460405A GB 14325/36 A GB14325/36 A GB 14325/36A GB 1432536 A GB1432536 A GB 1432536A GB 460405 A GB460405 A GB 460405A
Authority
GB
United Kingdom
Prior art keywords
paper
pulp
precipitated
printed
relating
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
GB14325/36A
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.)
Felix Schoeller & Bausch
Original Assignee
Felix Schoeller & Bausch
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 Felix Schoeller & Bausch filed Critical Felix Schoeller & Bausch
Publication of GB460405A publication Critical patent/GB460405A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24835—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]

Landscapes

  • Paper (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

460,405. Security paper. CLAYTON, C. E. EVERY-. (Schoeller & Bausch, F.) May 20, 1936, No. 14325. [Class 96] To pulp or paper is added an inorganic salt giving a colour reaction to mild reducing agents e.g. sulphites ; substances giving colour reactions with oxidizing agents may also be used. The substances may be sprayed, painted, printed &c. on to paper. In examples, mercury-I-tungstate is precipitated on, or manganous tellurite is added to, pulp in a Hollander, or 10 per cent of manganous ferrocyanide is so precipitated and the paper impregnated with concentrated alkali selenite, or paper is printed with moist barium tellurite.
GB14325/36A 1934-02-08 1936-05-20 Improvements in and relating to the manufacture and production of safety paper Expired GB460405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET43582D DE660599C (en) 1934-02-08 1934-02-08 Process for the production of security paper

Publications (1)

Publication Number Publication Date
GB460405A true GB460405A (en) 1937-01-27

Family

ID=26000533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14325/36A Expired GB460405A (en) 1934-02-08 1936-05-20 Improvements in and relating to the manufacture and production of safety paper

Country Status (5)

Country Link
US (1) US2112756A (en)
CH (1) CH189156A (en)
DE (1) DE660599C (en)
FR (1) FR806717A (en)
GB (1) GB460405A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064806A1 (en) 2011-10-31 2013-05-10 Aidc Global Limited Identification arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL264698A (en) * 1960-02-19
FR2620146B1 (en) * 1987-09-03 1991-10-04 Arjomari Prioux MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064806A1 (en) 2011-10-31 2013-05-10 Aidc Global Limited Identification arrangement

Also Published As

Publication number Publication date
FR806717A (en) 1936-12-23
CH189156A (en) 1937-05-01
DE660599C (en) 1938-05-31
US2112756A (en) 1938-03-29

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