Browse Prior Art Database

BILAYER APERTURE PLATE BONDING

IP.com Disclosure Number: IPCOM000024984D
Original Publication Date: 1983-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 60K

Publishing Venue

Xerox Disclosure Journal

Abstract

In the fabrication of aperture plates for ink jet printing machines, it is necessary to rigidly support the aperture plate. Heretofore, the aperture plate is fabricated by adhesively bonding a gold coated aperture plate to a steel reinforcing plate. The function of this joining process is to supply adequate adhesion between the plates to create a hermetic seal between individual orifices. It is difficult to bond to gold, and the adhesive layer thickness is difficult to control. The irregularity in thickness causes adhesive to flow into the orifices which will restrict the flow of ink, if not removed.

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IEROX DISCLOSURE JOURNAL

Proposed Classification
U.S. C1. 178/6.6

In the fabrication of aperture plates for ink jet printing machines, it is necessary to rigidly support the aperture plate. Heretofore, the aperture plate is fabricated by adhesively bonding a gold coated aperture plate to a steel reinforcing plate. The function of this joining process is to supply adequate adhesion between the plates to create a hermetic seal between individual orifices. It is difficult to bond to gold, and the adhesive layer thickness is difficult to control. The irregularity in thickness causes adhesive to flow into the orifices which will restrict the flow of ink, if not removed.

Volume 8 Number 2 March/April 1983 89

BILAYER APERTURE PLATE BONDING Michael Wild

Elimination of the adhesive significantly improves the process. This may be

as a polyethylene, and joining the parts together under the application of heat and pressure. This process resembles the thermal welding processes where the coatings fuse together eliminating the adhesive. The coating could be accomplished by plasma polymerizing a polyethylene which has good adhesion to gold, and, at the same time, maintains the orifices clear of the coating. This same type of deposition technique could be applied to the stainless steel reinforcing plate to insure that the chemical properties of the coating will be compatible.

i Int. C1. H041 21/00

achieved by coating the two parts independently with a thin film of a polymer, such...