GB805272A - Improved methods of duplicating and means therefor - Google Patents

Improved methods of duplicating and means therefor

Info

Publication number
GB805272A
GB805272A GB1383056A GB1383056A GB805272A GB 805272 A GB805272 A GB 805272A GB 1383056 A GB1383056 A GB 1383056A GB 1383056 A GB1383056 A GB 1383056A GB 805272 A GB805272 A GB 805272A
Authority
GB
United Kingdom
Prior art keywords
wax
ritzerfeld
alkali
duplicating
transfer
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
GB1383056A
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
Priority to FR1148254D priority Critical patent/FR1148254A/en
Application filed by Individual filed Critical Individual
Priority to GB1383056A priority patent/GB805272A/en
Publication of GB805272A publication Critical patent/GB805272A/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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0253—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L11/00—Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Color Printing (AREA)
  • Paper (AREA)

Abstract

805,272. Carbon paper coating compositions. RITZERFELD, W., and RITZERFELD, G. May 4, 1956, No. 13830/56. Class 146(3) [Also in Group XVI] A coating for a transfer sheet to be used in a spirit duplicating process for transfer of alkali to a master sheet contacted with a copy sheet moistened with a diazo compound and a coupling agent which produces a dye in the presence of alkali consists of a layer of fat, wax, &c., e.g. a polygylcol wax or a mixture of carnauba wax, stearin, wool fat, petroleum jelly and castor oil in which an alkaline substance, e.g. soda, tertiary potassium phosphate or diethanolamine has been incorporated.
GB1383056A 1956-05-04 1956-05-04 Improved methods of duplicating and means therefor Expired GB805272A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1148254D FR1148254A (en) 1956-05-04 1956-04-28 Duplication process and transfer sheet
GB1383056A GB805272A (en) 1956-05-04 1956-05-04 Improved methods of duplicating and means therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1383056A GB805272A (en) 1956-05-04 1956-05-04 Improved methods of duplicating and means therefor

Publications (1)

Publication Number Publication Date
GB805272A true GB805272A (en) 1958-12-03

Family

ID=10030141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1383056A Expired GB805272A (en) 1956-05-04 1956-05-04 Improved methods of duplicating and means therefor

Country Status (2)

Country Link
FR (1) FR1148254A (en)
GB (1) GB805272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478380A (en) * 1992-10-15 1995-12-26 The Wiggins Teape Group Limited Chromogenic composition for use in pressure-sensitive record material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478380A (en) * 1992-10-15 1995-12-26 The Wiggins Teape Group Limited Chromogenic composition for use in pressure-sensitive record material

Also Published As

Publication number Publication date
FR1148254A (en) 1957-12-05

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