Patent · US Expired

Simultaneous finish-stripping and dyeing of synthetic fibers

US6099594A · kind A · utility

2Cited by

4References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ferdinand Kummeler · Leverkusen, DE
Klaus Walz
Michael Pirkotsch · Leverkusen, DE
Josef Pfeiffer · Leverkusen, DE
Fritz Lesszinsky · Wittlich, DE

Key dates

Filing date	May 20, 1998
Grant date	Aug 8, 2000
Priority date	—
Expiry date	May 20, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/914
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Synthetic fibers and synthetic fiber textile materials finished with mineral oil finishes, silicone oil finishes or both can be simultaneously stripped of these finishes and dyed in one liquor comprising as essential ingredients PA0 a) anionic and/or amphoteric surfactants, PA0 b) dyes, and PA0 c) optionally further compounds selected from the group consisting of the nonionic surfactants, the terpene hydrocarbons/alcohols, sorbitol esters and their alkoxylates, fatty acid ethanolamides, alkylpolyglycosides and solvents. The treatment is carried out at pH 4.0 to 7.5 at 80-110.degree. C. and at a liquor ratio of 5:1 to 100:1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.