Patent · US Expired

Elastane fiber spools provided with a variable application of a preparation

US6844039B1 · kind B1 · utility

1Cited by

2References

12Claims

0Family size

Assignee

Bayer Faser GmbH · DE

Inventors

Michael Kausch · Neunburg vorm Wald, DE
Wolfgang Klein · Zorneding, DE
Christine Soenksen · Metelen, DE

Key dates

Filing date	Jun 5, 2000
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Jun 11, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2936
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention describes elastane packages on cylindrical tubes which are provided with a finishing oil content varying over the filament length, and a method for the production thereof. Instead of being applied uniformly along the filament, the finishing oil is distinctly increased on the outermost part, constituting in particular at least 3%, of the filament wound onto the tubes such that the oil coat in this region is at least 1.2 times higher than in the remaining region of the package. This gives rise to a finishing coat gradient of the package from the outside (high) inwards (low).

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