Textiles: spinning – twisting – and twining – Strand structure – Longitudinal variation
Patent
1991-07-19
1992-09-15
Hail, III, Joseph J.
Textiles: spinning, twisting, and twining
Strand structure
Longitudinal variation
57228, D02G 334, D02G 336
Patent
active
051467380
ABSTRACT:
A thread, suitable for use as a sewing thread, and having increased tenacity and reduced thermal shrinkage properties. A multi-filament core yarn for the thread is formed from a preoriented yarn having a titre of 100 dtex-1,000 dtex which has been turned around an unheated pin of less than 10 mm diameter, heated to a temperature of 100.degree.-200.degree. C. for 0.01-10 seconds, and drawn with a drawing ratio equal to or greater than a normal drawing ratio. At least one effect yarn is intermingled with the core yarn to form a core-jacket thread having loops, not more than 15% of which are drawn tight in a knot-like manner.
REFERENCES:
patent: 2942325 (1960-06-01), Spellman, Jr.
patent: 3115744 (1963-12-01), Nott
patent: 3694872 (1972-10-01), Sundbeck
patent: 4044089 (1977-08-01), Cochran et al.
patent: 4523426 (1985-06-01), Scott et al.
patent: 4615167 (1986-10-01), Greenberg
E. Liebler et al., "Temperaturregelung an Nylon-Streckmaschinen mit einem einfachen electronischen Zweipunktregler", Siemens Zeitschrift Band 38, Nr. 6, Jun. 19964, pp. 477-480.
Greifeneder Karl
Truckenmuller Kurt
Amann und Sohne GmbH & Co.
Hail III Joseph J.
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