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:
May. 22, 1979
Filed:
Dec. 19, 1977
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
A wet transfer process for dyeing and printing synthetic and natural nitrogenous material by applying to an inert support a printing ink which contains at least one dye and/or fluorescent brightening agent, a binder or thickener, water and/or an organic solvent, and drying said ink, then bringing the treated side of the support into contact with the surface of the material to be dyed which has been pretreated with an aqueous solution or emulsion, subsequently subjecting support and material, with or without mechanical pressure, to a heat treatment of 100.degree. to 130.degree. C., preferably 105.degree. to 120.degree. C., for 1 to 100 seconds, preferably 20 to 60 seconds, and then separating the dyed or printed material from the support, which process comprises the use of a hydrophobic inert support which contains at least one non-sublimable dye having fibre affinity, and pretreating the synthetic and natural nitrogenous fibrous material with an aqueous, thickened solution or emulsion which contains a coacervating agent and an acid or an acid donor.