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GB987366A - Improvements in or relating to the manufacture of copying sheets - Google Patents

Improvements in or relating to the manufacture of copying sheets

Info

Publication number
GB987366A
GB987366A GB4755863A GB4755863A GB987366A GB 987366 A GB987366 A GB 987366A GB 4755863 A GB4755863 A GB 4755863A GB 4755863 A GB4755863 A GB 4755863A GB 987366 A GB987366 A GB 987366A
Authority
GB
United Kingdom
Prior art keywords
dispersed
water
carbon
solution
phthalocyanine
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
GB4755863A
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.)
KEMI AS
Original Assignee
KEMI AS
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 claimed from DK133261A external-priority patent/DK96243C/en
Priority claimed from DK529462A external-priority patent/DK102136C/en
Application filed by KEMI AS filed Critical KEMI AS
Publication of GB987366A publication Critical patent/GB987366A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/10Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like

Landscapes

  • Color Printing (AREA)
  • Paper (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Duplication Or Marking (AREA)
  • Laminated Bodies (AREA)

Abstract

Emulsions are described which can be used to make the transfer coating of "carbon" paper (see Division D2). In Example 3, phthalocyanine is dispersed in an aqueous solution of methylcellulose. A hydrocarbon wax made by Fischer-Tropsch synthesis is dispersed in water, using a water-soluble non-ionic fatty-alcohol derivative as emulsifying agent. These two dispersions are then mixed.ALSO:Emulsions are described which can be used to make the transfer coating of "carbon" paper (see Division D2). In Example 2, a hydrocarbon wax made by Fischer-Tropsch synthesis is dispersed in water, using a water-soluble non-ionic fatty alcohol derivative as emulsifying agent. Carbon black is dispersed in a solution of gum arabic in water. The components are then mixed. In Example 3, phthalocyanine is dispersed in an aqueous solution of methyl cellulose, and used in place of the carbon black dispersion of Example 2.ALSO:Copying sheets are made by preparing a solution of a first binding-agent component in a liquid, volatile solvent (e.g. water) in which a second binding-agent component and pigmenting matter are dispersed, coating a sheet with the solution, and evaporating the solvent, so that the binding-agent components form a stable disperse system with the pigmenting matter in the outer phase. The component forming the outer phase may be the dissolved one, and may be a film-former, e.g. gum, gelatine or methyl-cellulose. The component forming the inner phase may be the suspended one and may be a non-film-former, e.g. a vinyl chloride butyl acrylate copolymer or a wax. Pigments referred to are carbon-black and phthalocyanine.
GB4755863A 1961-03-29 1963-12-02 Improvements in or relating to the manufacture of copying sheets Expired GB987366A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK133261A DK96243C (en) 1961-03-29 1961-03-29 Color emitter, especially carbon paper.
DK529462A DK102136C (en) 1962-12-07 1962-12-07 Process for the production of color emitters, in particular carbon paper.

Publications (1)

Publication Number Publication Date
GB987366A true GB987366A (en) 1965-03-31

Family

ID=26065594

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1113962A Expired GB939010A (en) 1961-03-29 1962-03-23 Improvements in or relating to copying sheets
GB4755863A Expired GB987366A (en) 1961-03-29 1963-12-02 Improvements in or relating to the manufacture of copying sheets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1113962A Expired GB939010A (en) 1961-03-29 1962-03-23 Improvements in or relating to copying sheets

Country Status (6)

Country Link
CH (2) CH394792A (en)
DE (2) DE1193522B (en)
FI (1) FI40856B (en)
GB (2) GB939010A (en)
NL (1) NL301306A (en)
SE (1) SE313493B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652603C2 (en) * 1976-11-19 1982-09-16 Degussa Ag, 6000 Frankfurt Use of aqueous mixtures for the production of pigment-containing coatings on carbon papers
DE3044113A1 (en) * 1980-11-24 1982-07-15 Basf Ag, 6700 Ludwigshafen GROCES CONTAINING MICROCAPSULES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE586511A (en) * 1959-04-03
DE1136354B (en) * 1960-04-11 1962-09-13 Pelikan Werke Wagner Guenther Process for the production of carbon and copy paper with a plastic-based paint layer
DE1137047B (en) * 1960-12-14 1962-09-27 Pelikan Werke Wagner Guenther Carbon and carbonless paper with no tendency to curl

Also Published As

Publication number Publication date
CH394792A (en) 1965-06-30
DE1193522B (en) 1965-05-26
SE313493B (en) 1969-08-11
NL301306A (en)
CH444657A (en) 1967-09-30
DE1242642B (en) 1967-06-22
FI40856B (en) 1969-02-28
GB939010A (en) 1963-10-09

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