Liquid jet recording head

Details Liquid jet recording head Liquid jet recording head

1989-03-16

1990-11-13

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

522102, 522121, B41J 205

Patent

active

049705326

ABSTRACT:
An ink jet recording head having an ink pathway in communication with a jetting exit formed on a substance on which an active element generating energy utilized for jetting out an ink is disposed, at least a portion of the ink pathway being constituted with a cured film of photosensitive resin, wherein the photosensitive resin composition includes (a) a specific high molecular compound, (b) a photopolymerizable compound having two or more acryloyl groups or methacryloyl groups in one molecule, and (c) a photopolymerization initiator. The ink jet recording head has various advantages, for example, (i) having satisfactory durability against a change in temperature during working conditions, (ii) causing no defoliation between the ink pathway walls and other constituent members even under continuous long-term use, (iii) developing no crack in the ink pathway walls even for continuous long-term use, and (iv) having satisfactory jetting durability.

REFERENCES:
patent: 3655824 (1972-04-01), Kato
patent: 4177074 (1979-12-01), Proskow
patent: 4417251 (1983-11-01), Sugitani
patent: 4574142 (1986-03-01), Charnock
patent: 4628022 (1986-12-01), Ors
patent: 4688053 (1987-08-01), Noguchi
patent: 4839668 (1989-06-01), Sato

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