Method of influencing the contact angle of the nozzle surface of

Details Method of influencing the contact angle of the nozzle surface of Method of influencing the contact angle of the nozzle surface of

1995-01-30

1997-05-27

Lund, Valerie

Incremental printing of symbolic information

Ink jet

Ejector mechanism

427487, 427510, B41J 216, C08F 248

Patent

active

056336640

ABSTRACT:
Molded inkjet modules having still closed nozzles are coated with a polymer solution, preferably a PEEK solution. By means of Eximer laser radiation of a definite wavelength the nozzle ports extending through the PEEK layer and the layer of channel formation material (14 and 16) are formed by application of the laser ablation mask process. Then the surface of the PEEK layer is irradiated with a considerably reduced laser intensity (11) using the same wavelength as in the ablation process. The desired contact angle can be set in response to the irradiation.

REFERENCES:
patent: 5023026 (1991-06-01), Yoshida et al.
patent: 5208604 (1993-05-01), Watanabe et al.
patent: 5312517 (1994-05-01), Ouki

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