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
GB932423A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AGfiledCriticalBASF SE
Priority to GB932423ApriorityCriticalpatent/GB204280A/en
Publication of GB204280ApublicationCriticalpatent/GB204280A/en
Cellulose esters, particularly cellulose acetate silk, are dyed with the bisulphite compounds of insoluble or difficultly-soluble azo dyes. In an example, cellulose acetate is dyed golden-orange from a bath containing the bisulphite compound of benzene-azo-b -naphthol and acetic acid.
GB932423A1923-04-051923-04-05Improvements in dyeing cellulose esters
ExpiredGB204280A
(en)