Patent · US Expired

Method for continuosly producing a twisted yard with minimal curling tendency

US6006509A · kind A · utility

0Cited by

5References

6Claims

0Family size

Assignee

Volkmann GMBH · DE

Inventors

Ulrich Ballhausen · Bad Driburg, DE
Wilfried Rutten · Wegberg, DE
Markus Beckmann · Krefeld, DE
Guido Spix · Kaarst, DE
Stefan Kross · Viersen, DE

Key dates

Filing date	Jun 26, 1998
Grant date	Dec 28, 1999
Priority date	—
Expiry date	Jun 26, 2018

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H7/90
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for continuously producing a twisted yarn with minimal curling tendency includes the steps of spinning a yarn and directly thereafter, within a time period of less than one second, twisting the yarn. The yarn tension at the end of the spinning step can be adjusted to be essentially the same as the yarn tension at the end of the twisting step, or, in the alternative, the yarn tension at the end of the twisting step is greater than 70% of the yarn tension at the end of the spinning step.

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