Method of arrangement for coating a fibre

Details Method of arrangement for coating a fibre Method of arrangement for coating a fibre

1987-07-02

1988-08-23

Bueker, Richard

Coating apparatus

Immersion or work-confined pool type

Work extending through pool-confining wall area

118420, 118429, B05D 118

Patent

active

047652713

ABSTRACT:
A method of and an apparatus for providing a bubble-free coating on a fibre, more particularly on an optical fibre. A fibre to be coated is fed into a pressure chamber (61) via an inlet duct (56) with a restricted inlet opening (57) and leaves the pressure chamber (61) through an outlet opening (41) of a nozzle (40). Liquid coating material is supplied to the pressure chamber (61) at such a pressure that the coating material rises in the inlet duct (56) up to a certain level to form a convex meniscus (D). By flushing the surroundings of the inlet opening (57) with a gas having a kinematic viscosity which is lower than that of air, the drawing speed at which the applied coating is still bubble-free can be considerably increased.

REFERENCES:
patent: 4349587 (1982-09-01), Aloisio
patent: 4374161 (1983-02-01), Geyling
patent: 4439467 (1984-03-01), Kassahun
patent: 4490415 (1984-12-01), Imamura
patent: 4533570 (1985-08-01), Iyengar
patent: 4539226 (1985-09-01), Paek

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