ZA706478B - Improvements in and relating to copying papers - Google Patents

Improvements in and relating to copying papers

Info

Publication number
ZA706478B
ZA706478B ZA706478A ZA706478A ZA706478B ZA 706478 B ZA706478 B ZA 706478B ZA 706478 A ZA706478 A ZA 706478A ZA 706478 A ZA706478 A ZA 706478A ZA 706478 B ZA706478 B ZA 706478B
Authority
ZA
South Africa
Prior art keywords
relating
copying papers
papers
copying
Prior art date
Application number
ZA706478A
Inventor
B Colebrook
Original Assignee
Wiggins Teape Res Dev
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 Wiggins Teape Res Dev filed Critical Wiggins Teape Res Dev
Publication of ZA706478B publication Critical patent/ZA706478B/en

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
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
    • B41M5/1555—Inorganic mineral developers, e.g. clays

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
ZA706478A 1969-09-26 1970-09-22 Improvements in and relating to copying papers ZA706478B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4756669 1969-09-26

Publications (1)

Publication Number Publication Date
ZA706478B true ZA706478B (en) 1972-04-26

Family

ID=10445446

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA706478A ZA706478B (en) 1969-09-26 1970-09-22 Improvements in and relating to copying papers

Country Status (3)

Country Link
AU (1) AU2025670A (en)
BE (1) BE756601A (en)
ZA (1) ZA706478B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT372909B (en) * 1979-03-20 1983-11-25 Manuel Ing Cespon COLOR DEVELOPER MATERIALS FOR THE PRODUCTION OF A PRESSURE-SENSITIVE RECORDING MATERIAL WITH PARTICULARLY STRONG COLOR FORMATION AND LIGHT-RESISTANCE
IT1115167B (en) * 1979-04-09 1986-02-03 Maf Macchine Flessografiche Di SELF-COPYING PAPER ESPECIALLY FOR THE FORMATION OF MODULES AND OTHER PRINTINGS PREPARED IN THE FORM OF A PLURALITY OF STACKED SHEETS

Also Published As

Publication number Publication date
AU2025670A (en) 1972-03-30
BE756601A (en) 1971-03-24

Similar Documents

Publication Publication Date Title
ZA713587B (en) Improvements in and relating to photo-polymerizable copying compositions
GB1090566A (en) Improvements in and relating to springs
ZA706973B (en) Improvements in or relating to type-printing mechanisms
HK54376A (en) Improvements in and relating to electrostatic copiers
ZA706479B (en) Improvements in and relating to copying papers
ZA702211B (en) Improvements in or relating to stud-welding
IE34880B1 (en) Improvements in and relating to hangers
ZA718084B (en) Improvements in and relating to photoconductive materials
ZA706478B (en) Improvements in and relating to copying papers
ZA725438B (en) Improvements in and relating to electro-photographic reproduction
ZA718622B (en) Improvements in and relating to light-sensitive copying compositions
AU446774B2 (en) Improvements in and relating to copying papers
IE33388B1 (en) Improvements in or relating to envelopes
AU2025370A (en) Improvements in and relating to copying papers
HK61581A (en) Improvements in and relating to computers
IE33266B1 (en) Improvements in and relating to thermographic copying machines
IE36537B1 (en) Improvements in and relating to boilers
AU276316B2 (en) Improvements in and relating to photocopying processes
ZA729136B (en) Improvements in and relating to micro-film re-enlargements
AU441630B2 (en) Improvements in and relating to electrophotographic light-sensitive materials
IL31954A0 (en) Improvements in index-files for documents
ZA705929B (en) Improvements in and relating to electrographic recording material
ZA70761B (en) Improvements in paper making
AU4975969A (en) Improvements in or relating to electrographic copying
AU429155B2 (en) Improvements in and relating to papermaking apparatus