The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1976
Filed:
Jan. 15, 1975
Applicant:
Inventors:
Brian Hewitt, Crewe, EN;
Cyril Hobday, Manchester, EN;
James Jack, Bramhall, EN;
John Francis Keenan, Cheadle, EN;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
D06P / ;
U.S. Cl.
CPC ...
8172 / ; 8 83 ; 8177 / ;
Abstract
A process for the colouration of polyacrylonitrile textile fibres, wherein said fibres are coloured by printing or pad-steaming with a cationic dye in the presence of a carrier consisting of least one compound having the formula ##EQU1## in which Y is an oxygen or sulphur atom and m is a number from 1 to 2, obtaining on said fibres a rapid fixation of the cationic dye and a high colour yield.