GB283777A - Manufacture of black copying colours - Google Patents

Manufacture of black copying colours

Info

Publication number
GB283777A
GB283777A GB1396527A GB1396527A GB283777A GB 283777 A GB283777 A GB 283777A GB 1396527 A GB1396527 A GB 1396527A GB 1396527 A GB1396527 A GB 1396527A GB 283777 A GB283777 A GB 283777A
Authority
GB
United Kingdom
Prior art keywords
colours
manufacture
black copying
cresol
copying
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
GB1396527A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1396527A priority Critical patent/GB283777A/en
Publication of GB283777A publication Critical patent/GB283777A/en
Expired legal-status Critical Current

Links

Landscapes

  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Coloring (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

283,777. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). May 24, 1927. Azo dyes.-A good black copying colour is obtained by coupling a diazotized dialkylated phenosafranine with a cresol. Diethylphenosafranine and p-cresol are mentioned as suitable components. Specification 14687/95 is referred to.
GB1396527A 1927-05-24 1927-05-24 Manufacture of black copying colours Expired GB283777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1396527A GB283777A (en) 1927-05-24 1927-05-24 Manufacture of black copying colours

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1396527A GB283777A (en) 1927-05-24 1927-05-24 Manufacture of black copying colours

Publications (1)

Publication Number Publication Date
GB283777A true GB283777A (en) 1928-01-19

Family

ID=10032583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1396527A Expired GB283777A (en) 1927-05-24 1927-05-24 Manufacture of black copying colours

Country Status (1)

Country Link
GB (1) GB283777A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068056A (en) * 1960-06-02 1962-12-11 Du Pont Dyeing of polyester fiber and the products so obtained
US4285859A (en) * 1978-02-28 1981-08-25 Ciba-Geigy Ag Azo compounds useful in a photographic dye diffusion transfer process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068056A (en) * 1960-06-02 1962-12-11 Du Pont Dyeing of polyester fiber and the products so obtained
US4285859A (en) * 1978-02-28 1981-08-25 Ciba-Geigy Ag Azo compounds useful in a photographic dye diffusion transfer process

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