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Title:
METHOD FOR MONITORING END BREAKAGE OF SINGLE YARN OR THE LIKE IN YARN DOUBLING AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JPH0641832
Kind Code:
A
Abstract:

PURPOSE: To monitor end breakage of single yarn in the case of end down of constituent single yarn in a yarn doubling process for doubling plural single yarns.

CONSTITUTION: Yarn unevenness of the whole multifilament during yarn doubling is detected in every given length L of the yarn and the number N of yarn unevenness exceeding a given sensitivity level ±α% in the given length L is calculated. The average number Nm of yarn unevenness calculated during normal traveling of multifilament yarn is obtained and is compared with the number N of yarn unevenness calculated during the monitoring. When N<Nm, the yarn doubling is judged as end breakage of single yarn.


Inventors:
ANDO SHINJI
Application Number:
JP1992000212052
Publication Date:
February 15, 1994
Filing Date:
July 16, 1992
Export Citation:
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Assignee:
KEISOKKI KOGYO KK
International Classes:
D01H13/16; D01H13/22; (IPC1-7): D01H13/16
Attorney, Agent or Firm:
Reiji Nakano