ZA706479B - Improvements in and relating to copying papers - Google Patents

Improvements in and relating to copying papers

Info

Publication number
ZA706479B
ZA706479B ZA706479A ZA706479A ZA706479B ZA 706479 B ZA706479 B ZA 706479B ZA 706479 A ZA706479 A ZA 706479A ZA 706479 A ZA706479 A ZA 706479A ZA 706479 B ZA706479 B ZA 706479B
Authority
ZA
South Africa
Prior art keywords
relating
copying papers
papers
copying
Prior art date
Application number
ZA706479A
Inventor
F Jenkins
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 ZA706479B publication Critical patent/ZA706479B/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)
  • Color Printing (AREA)
  • Paper (AREA)
ZA706479A 1969-09-26 1970-09-22 Improvements in and relating to copying papers ZA706479B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47568/69A GB1271304A (en) 1969-09-26 1969-09-26 Improvements in and relating to copying papers

Publications (1)

Publication Number Publication Date
ZA706479B true ZA706479B (en) 1972-04-26

Family

ID=10445448

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA706479A ZA706479B (en) 1969-09-26 1970-09-22 Improvements in and relating to copying papers

Country Status (3)

Country Link
BE (1) BE756602A (en)
GB (1) GB1271304A (en)
ZA (1) ZA706479B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930408A1 (en) * 1979-07-26 1981-02-12 Bayer Ag REACTION COVER PAPER
ZA813913B (en) * 1980-06-12 1982-06-30 Wiggins Teape Group Ltd Record material carrying a colour developer composition
US4391850A (en) * 1980-06-13 1983-07-05 The Wiggins Teape Group Limited Record material carrying a color developer composition
JPS5715996A (en) * 1980-07-03 1982-01-27 Mizusawa Ind Chem Ltd Novel clay mineral based color former for heat-sensitive copying paper and production thereof
ZA828473B (en) * 1981-12-04 1983-10-26 Wiggins Teape Group Ltd Record material
US4509065A (en) * 1981-12-04 1985-04-02 The Wiggins Teape Group Limited Record material
US5209947A (en) * 1989-12-16 1993-05-11 The Wiggins Teape Group Limited Process for the production of record material
GB9110608D0 (en) * 1991-05-16 1991-07-03 Wiggins Teape Group Ltd Colour developer composition
DE4413672A1 (en) * 1994-04-20 1995-10-26 Sued Chemie Ag Color developer for carbonless paper

Also Published As

Publication number Publication date
GB1271304A (en) 1972-04-19
BE756602A (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