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:
Apr. 12, 1988
Filed:
Dec. 16, 1986
Applicant:
Inventors:
Hans-Ulrich von der Eltz, Frankfurt am Main, DE;
Karl-Heinz Rostermundt, Eschborn, DE;
Klaus Turschmann, Hofheim am Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
8543 ; 8400 ; 8533 ; 8549 ; 8917 ;
Abstract
The level dyeing of wool with reactive dyes and simultaneous endeavors to shorten the dyeing process appear to be incompatible. It has now been found, according to the invention, that in the course of the exhaustion process it is possible through metered addition of the acid required for fixation over a prolonged period to the dyebath which is already at the dyeing temperature and contains no acidic fixing agent to obtain a shortening in the total treatment time while at the same time safeguarding the levelness of the dyeings.