Method and apparatus for applying a fluoride and / or ceramic coating to an internal wall of a small diameter tube, such as a syringe needle

摘要

Title: Method and apparatus for applying a fluorinated and / or ceramic coating on an internal wall of a tube of small diameter The invention relates to a method for applying a colored fluorinated and / or ceramic coating on an internal wall of a tube of small diameter such as a syringe needle, comprising the steps of: aspirating and / or flowing through the tube a liquid containing the coating; draining of the liquid contained in the tube, at the end of which a coating deposit on the inner wall of the tube is obtained; desolvation of the coating by forced air circulation; baking the coating at a temperature between 150 ° C and 450 ° C. Figure for the abstract: Fig. 1