Apparatus for applying hot melt size material to textile yarns

Textiles: manufacturing – Warp preparing or handling – With fluid treatment

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D06C 2900

Patent

active

RE0292877

ABSTRACT:
A compact apparatus and method for applying hot-melt size in a properly fluid state to a plurality of textile yarns. The apparatus comprises an internally heated rotating cylinder made of heat-conducting material, with deep grooves formed around it, one groove for each yarn strand. The size is preferably applied by urging a block of solid size against the grooves of the hot cylinder. From the point of application the molten size is carried by the rotation of the cylinder to a zone where each moving yarn strand passes briefly through a corresponding size-filled groove, essentially tangentially to the cylinder, and then moves away coated with an optimum amount of size. The method of application is unique in its capacity for placing a quick-setting, high molecular weight, film-forming melt size on yarn at high speed.

REFERENCES:
patent: 439916 (1890-11-01), Whittlesey
patent: 2022854 (1935-12-01), Greenwood
patent: 2438084 (1948-03-01), Wood
patent: 3345172 (1967-10-01), Land
patent: 3479988 (1969-11-01), Trost et al.
patent: 3625735 (1971-12-01), Fernstrom et al.
patent: 3732603 (1973-05-01), Illman et al.

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