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:
Dec. 24, 1991
Filed:
Jun. 25, 1990
Klaus Fussmann, Thurnau, DE;
Manfred Schnabel, Mainleus, DE;
Ulrich Schmidt, Bayreuth, DE;
Hans H Bosshard, Allschwil, CH;
Manfred Herrmann, Steinbach, DE;
Othmar Frank, Kirftel, DE;
Ciba-Geigy Corporation, Ardsley, NY (US);
Frenzelit-Werke GmbH & Co., , DE;
Abstract
Process for dyeing or printing glass fibers, in particular textile glass fibers in various forms, by dyeing or printing the fiber materials with anionic dyes in the presence of cationic compounds following an acid pretreatment. The cationic compounds may be applied to the fiber material before the actual dyeing or printing process or else be applied together with the dye from the same dyeing liquor or printing paste. Suitable cationic compounds are in particular polyquaternized ammonium compounds. Level dyeings are obtained on the glass fiber materials with good light fastness properties.