Patent · US Expired

Texturizing of filaments

US4014084A · kind A · utility

6Cited by

6References

6Claims

0Family size

Assignee

BASF Farben Fasern Aktiengesellschaft · DE

Inventors

Wolfgang Bauer · Germering, DE
Wolfgang Martin · Ludwigshafen, DE
Erwin Lehrer · Bad Dürkheim, DE

Key dates

Filing date	Mar 15, 1976
Grant date	Mar 29, 1977
Priority date	—
Expiry date	Mar 15, 1996

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G1/122
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Filaments or filament bundles, which are conveyed by a heated gas, are crimped by treating them in a preheat chamber and crimping them in an elongate chamber from which the heated gas medium issues through longitudinal slits. A stream of cold gas is made to impinge on the outside of the lower one-third of the elongate chamber without allowing significant amounts of this cold gas to enter the said chamber. The resulting filaments or filament bundles have very good dyeing characteristics.

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