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GB786496A - Improvements in or relating to electrolytic recording media - Google Patents

Improvements in or relating to electrolytic recording media

Info

Publication number
GB786496A
GB786496A GB26769/54A GB2676954A GB786496A GB 786496 A GB786496 A GB 786496A GB 26769/54 A GB26769/54 A GB 26769/54A GB 2676954 A GB2676954 A GB 2676954A GB 786496 A GB786496 A GB 786496A
Authority
GB
United Kingdom
Prior art keywords
per cent
potassium
sodium
recording
catechol
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
GB26769/54A
Inventor
Edwin William Tucker
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.)
Muirhead and Co Ltd
Original Assignee
Muirhead and Co 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 Muirhead and Co Ltd filed Critical Muirhead and Co Ltd
Publication of GB786496A publication Critical patent/GB786496A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/20—Duplicating or marking methods; Sheet materials for use therein using electric current
    • B41M5/205—Duplicating or marking methods; Sheet materials for use therein using electric current and an eroding electrode

Landscapes

  • Heat Sensitive Colour Forming Recording (AREA)
  • Ink Jet (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Color Printing (AREA)

Abstract

786,496. Copying-telegraph receivers. MUIRHEAD & CO., Ltd. June 17, 1955 [Sept. 15, 1954], No. 26769/54. Class 40 (3). [Also in Group VIII] An electrolytic recording medium for facsimile or photo-telegraphic receivers, comprising a base impregnated with an aqueous solution containing a polyhydroxyphenolic compound capable of forming a dark coloured lake with a metal, together with an electrolyte, contains additionally a colourless oxidizing compound which reacts readily with the products of electrolysis to intensify the recording when the recording is heated to a temperature between room temperature and 115‹ C. Specified oxidizing compounds are the chlorates and perchlorates of sodium or potassium. In examples, solutions containing 2¢ per cent solution weight of catechol, 15 per cent potassium nitrate and 2 per cent potassium chlorate, and 5 per cent catechol, 25 per cent sodium nitrate, and 15 per cent sodium chlorate are employed.
GB26769/54A 1956-12-20 1954-09-15 Improvements in or relating to electrolytic recording media Expired GB786496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38856/56A GB818937A (en) 1956-12-20 1956-12-20 Improvements in electrolytic recording media

Publications (1)

Publication Number Publication Date
GB786496A true GB786496A (en) 1957-11-20

Family

ID=10406109

Family Applications (2)

Application Number Title Priority Date Filing Date
GB26769/54A Expired GB786496A (en) 1956-12-20 1954-09-15 Improvements in or relating to electrolytic recording media
GB38856/56A Expired GB818937A (en) 1956-12-20 1956-12-20 Improvements in electrolytic recording media

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB38856/56A Expired GB818937A (en) 1956-12-20 1956-12-20 Improvements in electrolytic recording media

Country Status (4)

Country Link
US (1) US2949409A (en)
DE (1) DE1010821B (en)
FR (2) FR1135353A (en)
GB (2) GB786496A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB942034A (en) * 1959-08-20 1963-11-20 Kodak Ltd Development of photographic silver halide layers
US3122488A (en) * 1960-05-23 1964-02-25 Hogan Faximile Corp Electrical recording medium
US3108050A (en) * 1960-08-22 1963-10-22 Hogan Faximile Corp Electrolytic marking medium
US3122489A (en) * 1960-12-27 1964-02-25 Hogan Faximile Corp Electrolytic recording medium
US3203797A (en) * 1962-10-16 1965-08-31 Andrews Paper & Chem Co Inc Thermal diazotype method and developer sheet for use therein
US3409516A (en) * 1963-06-11 1968-11-05 Milton Alden Electrolytic recording paper containing a sequestering agent
US3344044A (en) * 1964-07-03 1967-09-26 Hogan Faximile Corp Electrolytic recording medium containing a quaternary ammonium compounds
US3342705A (en) * 1964-07-03 1967-09-19 Hogan Faximile Corp Electrolytic recording medium containing a halogenated polyhydric phenol
US3341431A (en) * 1964-07-03 1967-09-12 Hogan Faximile Corp Electrolytic recording medium containing a phenolic ether
US3342704A (en) * 1964-07-03 1967-09-19 Hogan Faximile Corp Electrolytic recording medium containing a polynuclear phenol
US3344043A (en) * 1964-07-03 1967-09-26 Hogan Fazimile Corp Electrolytic recording medium containing a hydroxynapthoic acid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485678A (en) * 1947-08-21 1949-10-25 Faximile Inc Facsimile recorder
BE500362A (en) * 1949-12-30
US2686858A (en) * 1950-10-24 1954-08-17 Earl J Kohn Electrochemical paper and method of preparing same

Also Published As

Publication number Publication date
FR72350E (en) 1960-03-31
GB818937A (en) 1959-08-26
FR1135353A (en) 1957-04-26
DE1010821B (en) 1957-06-19
US2949409A (en) 1960-08-16

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