Textiles: fluid treating apparatus – Machines – With gas – steam or mist treating
Patent
1986-09-17
1988-07-05
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
With gas, steam or mist treating
28281, D06B 506
Patent
active
047546190
ABSTRACT:
In conjunction with a heat-set apparatus for carpet yarns which incorporates a plenum chamber having a porous upper surface in combination with a forced draft system for recirculating the heating medium throughout the length of the heat-set chamber, an improved design of the plenum chamber and the distribution of the medium to compensate for a temperature gradient which has heretofore existed in the heat-set chamber resulting from the introduction of cooled yarn into the chamber. Such temperature gradient has been the cause of dye streaking which occurs when the yarn is subjected to relatively cooler temperature adjacent to the entrance to the heat-set chamber when the machine is stopped.
REFERENCES:
patent: 2317448 (1943-04-01), Dreyfus et al.
patent: 3762187 (1973-10-01), Fleissner et al.
patent: 3770374 (1973-11-01), Fleissner et al.
patent: 3949577 (1976-04-01), Fleissner et al.
America's Textiles International Dyeing/Finishing Article "Improving Quality, Efficiency in Continuous Carpet Dyeing" Sep. 1986 (3 pages).
Jul./Aug. 1986 Textile Marketing & Technology Article "BCF: A Versatile Carpet Yarn" (3 pages).
Bryan James F.
Coe Philip R.
West Point-Pepperell Inc.
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