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:
Aug. 29, 1978
Filed:
May. 26, 1976
Andres Schaub, Biel-Benken, CH;
Gerhard Kogel, Reinach, CH;
Ciba-Geigy AG, Basel, CH;
Abstract
Described is a process for the tone-in-tone printing and pad-dyeing of textile material made from fibre mixtures of synthetic and natural material with at least one disperse dye with the use of solvents having swelling properties, which process comprises printing or impregnating the textile material with a printing paste or padding liquor in which one or more disperse dyes have been produced by reaction of coupling components with diazo components; subsequently subjecting the printing or the dyeing, after intermediate drying, to a heat treatment and finally to the finishing process. There are obtained in the case of many disperse dyes when they are produced in the printing paste or padding liquor by the process of the invention better fixings on the natural constituent of the mixed fibres than when the same dyes are firstly produced and then added in the finely-dispersed form to the printing paste or padding liquor.