Method and apparatus for examining hairiness of yarn

Details Method and apparatus for examining hairiness of yarn Method and apparatus for examining hairiness of yarn

1989-02-07

1990-08-14

Rosenberger, Richard A.

Optics: measuring and testing

By monitoring of webs or thread

250571, G01B 1100

Patent

active

049482602

ABSTRACT:
The yarn (3) is illuminated by a transmitter (1) and the light reflected by the yarn surface is fed to a detector (5) and evaluated, the optical path being selected such that the receiver (5) receives light only from that side of the yarn (3) that is not illuminated.

REFERENCES:
patent: 2641960 (1953-06-01), Strother
patent: 2699701 (1955-01-01), Strother
patent: 2991685 (1961-07-01), Van Dongeren
patent: 3563660 (1971-02-01), Solowey et al.
patent: 3709610 (1973-01-01), Kruegle
patent: 3712743 (1973-01-01), Harris et al.
patent: 3719425 (1973-03-01), Leitz et al.
patent: 3804529 (1974-04-01), Hansler

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