Ink jet wetting-treated recording head and process

Details Ink jet wetting-treated recording head and process Ink jet wetting-treated recording head and process

1986-06-10

1988-02-16

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 75, 346140A, 141 1, 141 205, G01D 1518, B65B 104

Patent

active

047258624

ABSTRACT:
An ink-jet recording head formed from a base and a vibrating plate attached to the base with the surfaces therebetween defining a plurality of ink passageways terminating in a nozzle at one end of the head is provided. The base and the plate are both formed from a synthetic resin with the surfaces activated by a surface treatment to increase the polar groups and unsaturated bonds to increase the wetting property. Surface treatment includes treating with a K.sub.2 Cr.sub.2 O.sub.7 --H.sub.2 SO.sub.4 or H.sub.2 SO.sub.4 --SO.sub.3 solution, SO.sub.3 gas, ultraviolet rays, plasma, corona discharge, electron beam, or flame. A process for making the head is also disclosed.

REFERENCES:
patent: 4005440 (1977-01-01), Amberntsson et al.
patent: 4181689 (1980-01-01), Nagatoshi et al.
patent: 4364066 (1982-12-01), Koto
patent: 4368476 (1983-01-01), Uehara et al.
patent: 4368478 (1983-01-01), Koto
patent: 4437100 (1984-03-01), Sugitani et al.

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