Method for monitoring size encapsulation of yarn by determining

Details Method for monitoring size encapsulation of yarn by determining Method for monitoring size encapsulation of yarn by determining

1991-07-01

1992-09-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

28183, G01N 2186

Patent

active

051499819

ABSTRACT:
A method for quantifying size encapsulation of yarn on a slasher comprising measuring the hairiness of yarn entering a slasher prior to the application of size to the yarn, measuring the hairiness of the yarn leaving the slasher and solving the equation: ##EQU1## Apparatus for quantifying the size encapsulation of yarn on a slasher comprises an entry hairiness sensor positioned at the entry side of a slasher, a delivery hairiness sensor positioned at the delivery side of the slasher, the entry and delivery sensors producing signals proportional to the hairiness of the yarn at the entry and delivery sides of the slasher respectively, and a computer for solving the above indicated equation and producing an output signal representative of size encapsulation.

REFERENCES:
patent: 3044345 (1962-07-01), Schottler
patent: 3582661 (1971-06-01), Pijls
patent: 4634280 (1987-01-01), Paulson, Jr.
patent: 4710396 (1987-12-01), Seydel et al.
patent: 4717870 (1988-01-01), Vuncannon
patent: 4738866 (1988-04-01), Conklin et al.
patent: 4793035 (1988-12-01), Nehrenberg et al.
patent: 4812043 (1989-03-01), Vanstaen
patent: 4948260 (1990-08-01), Felix et al.
"Yarn Hairiness" by A. Barella in Textile Progress, vol. 13, No. 1, 1983, pp. 50-53.
"Yarn Evenness" The Textile Institute, Textile Progress, vol. 14, No. 3/4, 1986, pp. 26-29.

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