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:
Nov. 09, 1976
Filed:
Aug. 14, 1974
Hans-Ulrich von der Eltz, Frankfurt am Main, DT;
Hans-Peter Maier, Sulzbach, Taunus, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
Process for obtaining irregular tone-in-tone effects, shadow effects or multi-color effects on polyester fibers and blends thereof by padding polyester fiber-containing warps with sizing liquors which contain in addition to sizing agents alkali-susceptible disperse dyestuffs, with subsequent drying and waving with weft yarn undyed or dyed in a different kind, without prior fixation, which process comprises binding the piece-goods so obtained to a rope, loosely tying them and spraying them with aqueous solutions of alkalis which are free from oxidizing or reducing chemicals, irregularly and unevenly from outside, thermosoling them after opening the rope to fix the dyestuff and after-treating them.