Patent · US Expired

Method and apparatus for stuffer box crimping a yarn

US6305059A · kind A · utility

5Cited by

10References

16Claims

0Family size

Assignee

Barmag AG · DE

Inventor

Manfred Mayer · Niedernhausen, DE

Key dates

Filing date	Feb 1, 2000
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Feb 1, 2020

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G1/161
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method and an apparatus for stuffer box crimping a spun multifilament yarn, wherein the yarn is packed in a crimping device to form a yarn plug. After cooling the yarn plug, it is unraveled into a yarn. In so doing, the position of the unraveling point is adjusted by varying the withdrawal speed of the yarn. At the same time when the withdrawal speed is varied, a signal is generated for controlling at least one of the parameters of the crimping device, which influences the formation of the yarn plug, so that it is possible to produce a uniformly crimped yarn.

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