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:
Mar. 10, 1981
Filed:
Jun. 18, 1979
Applicant:
Inventors:
Jacques Zurbuchen, Kaiseraugst, CH;
Paul Dussy, Basel, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; C09B / ;
U.S. Cl.
CPC ...
8638 ; 8475 ; 8639 ; 8922 ;
Abstract
Described is a process for the level dyeing of polyester material by the aqueous exhaust method at temperatures above 100.degree. C., which comprises the use of an aqueous dye liquor which contains at least one migrating disperse dye as well as further ingredients. As migrating disperse dye, preferably a dye is used which has a diffusion coefficient Do at 130.degree. C. of 2 to 10.times.10.sup.-10 cm.sup.2 /sec, a distribution coefficient K at 130.degree. C. of 20 to 500 1/kg, and a migration half-life t/2 less then 50 minutes.