Claims
- 1. A method of coating a fibre, in which a fibre to be coated is passed through an inlet duct with a restricted inlet opening, is guided through a pressure chamber filled with liquid coating material, is drawn through the outlet opening of a nozzle, the coating material being supplied under pressure to the pressure chamber, characterized in that the coating material is supplied at such a pressure and in such a quantity that the material rises in the inlet duct up to a certain level to form a convex meniscus.
- 2. A method as claimed in claim 1, characterized in that the fibre is guided from the restricted inlet opening to the pressure chamber via a guide duct.
- 3. A method as claimed in claim 1, characterized in that the temperature of the coating material present in the pressure chamber is adjusted so that a coating layer of the desired thickness is obtained.
- 4. A method of coating a fibre in which the fiber to be coated is passed through a restricted inlet opening, is guided through a pressure chamber filled with liquid coating material, is drawn through the outlet opening of a nozzle, the coating material is supplied under pressure to the pressure chamber and the pressure chamber is filled with coating material, characterized in that above the inlet opening a gas atmosphere consisting of a gas having a kinematic viscosity lower than that of air is produced and maintained.
- 5. A method as claimed in claim 4, characterized in that xenon is used as the gas.
- 6. A method as claimed in claim 4, characterized in that dichlorodifluoromethane is used as the gas.
- 7. A method of coating a fiber, in which the fiber to be coated is passed through an inlet duct with a restricted inlet opening, is guided through a pressure chamber filled with liquid coating material, is drawn through the outlet opening of a nozzle, the coating material is supplied under pressure to the pressure chamber and the pressure chamber is filled with coating material, characterized in that above the inlet opening a gas atmosphere consisting of a gas having a kinematic viscosity lower than that of air is produced and maintained and the coating material is supplied at such a pressure and in such quantity that the coating material rises in the inlet duct to form a convex meniscus in that duct.
- 8. A method as claimed in claim 7, characterized in that xenon is used as the gas.
- 9. A method as claimed in claim 7, characterized in that dichlorodifluoromethane is used as the gas.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8501145 |
Apr 1985 |
NLX |
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Parent Case Info
This application is a continuation-in-part application of application Ser. No. 780,511 filed Sept. 26, 1985 and now abandoned.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
780511 |
Sep 1985 |
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