IP Library Granted Patent US 10,987,935
Granted Patent B1
US 10,987,935 · App. 16/741,812 · Granted Apr 27, 2021

Organic solvent sealing tape

Inventors: Paul W. Dryer (Lexington, KY); David C. Graham (Lexington, KY); Sean T. Weaver (Lexington, KY)
B41J2/17536B41J2/1754B41J2/17559
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Quick Facts
Patent No.
US 10,987,935
App. No.
16/741,812
Granted
Apr 27, 2021
Kind
B1
Abstract

A fluidic ejection cartridge and protective tape therefor. The fluidic ejection cartridge has a cartridge body for an organic solvent-based fluid having a cover closing a first end thereof, an ejection head on a second end thereof opposite the first end, and side walls attached to the first and second ends between the first and second ends, wherein the side walls comprise a first side wall, a second side wall opposite the first side wall, a first end wall attached to the first and second side walls, and a second end wall opposite the first end wall attached to the first and second side walls. A removable tape is attached to a nozzle plate of the ejection head and to a portion of the first side wall, wherein the removable tape comprises a polymeric backing film and a platinum-cured silicone adhesive.

Claims (17)

1. A fluidic ejection cartridge and protective tape therefor, comprising:

a cartridge body for an organic solvent-based fluid having a cover closing a first end thereof, an ejection head on a second end thereof opposite the first end, and side walls attached to the first and second ends between the first and second ends, wherein the side walls comprise a first side wall, a second side wall opposite the first side wall, a first end wall attached to the first and second side walls, and a second end wall opposite the first end wall attached to the first and second side walls; and

a removable tape attached to a nozzle plate of the ejection head and to a portion of the first side wall, wherein the removable tape comprises a polymeric backing film and a glass-filled, platinum-cured silicone adhesive.

2. The fluidic ejection cartridge of claim 1 , wherein the removable tape has a peel strength on a dry silicon wafer ranging from about 175 to about 350 N/m.

3. The fluidic ejection cartridge of claim 1 , wherein the removable tape has a peel strength on a silicon wafer immersed in an organic solvent for three days ranging from about 17 to about 70 N/m.

4. The fluidic ejection cartridge of claim 1 , wherein the removable tape is disposed on the nozzle plate so as to prevent the organic solvent-based fluid from leaking out of the ejection head.

5. The fluidic ejection cartridge of claim 1 , wherein the glass-filled, platinum-cured silicone adhesive has a thickness on the polymeric backing film ranging from about 25 to about 75 microns.

6. The fluidic ejection cartridge of claim 1 , wherein the glass-filled, platinum-cured silicone adhesive comprises a glass-filled, platinum cured silicone rubber adhesive material applied to the polymeric backing film wherein the polymer of backing film is selected from the group consisting of polyethylene terephthalate, polypropylene, polyamide, and polyimide.

7. A fluidic ejection device comprising the fluidic ejection cartridge of claim 1 .

8. A method for improving the sealing of a nozzle plate of an ejection head attached to a fluidic ejection cartridge containing an organic solvent-based fluid, the method comprising:

providing a cartridge body for the organic solvent-based fluid having a cover closing a first end thereof, the ejection head on a second end thereof opposite the first end, and side walls attached to the first and second ends between the first and second ends, wherein the side walls comprise a first side wall, a second side wall opposite the first side wall, a first end wall attached to the first and second side walls, and a second end wall opposite the first end wall attached to the first and second side walls; and

attaching a removable tape to the nozzle plate of the ejection head and to a portion of the first side wall, wherein the removable tape comprises a polymeric backing film and a glass-filled, platinum-cured silicone adhesive.

9. The method of claim 8 , wherein the removable tape has a peel strength on a dry silicon wafer ranging from about 175 to about 350 N/m.

10. The method of claim 8 , wherein the removable tape has a peel strength on a silicon wafer immersed in an organic solvent for three days ranging from about 17 to about 70 N/m.

11. The method of claim 8 , wherein the removable tape covers the nozzle plate on the ejection head and prevents the organic solvent-based fluid from leaking out of the ejection head.

12. The method of claim 8 , wherein the glass-filled, platinum-cured silicone adhesive has a thickness on the polymeric backing film ranging from about 25 to about 75 microns.

13. The method of claim 8 , wherein the glass-filled, platinum-cured silicone adhesive comprises a glass-filled silicone rubber adhesive material applied to the polymeric backing film wherein the polymer of backing film is selected from the group consisting of polyethylene terephthalate, polypropylene, polyamide, and polyimide.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2025
From: FUNAI ELECTRIC CO., LTD.
To: BRADY WORLDWIDE, INC.
Reel/Frame 070724/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2020
From: DRYER, PAUL W; WEAVER, SEAN T; GRAHAM, DAVID C
To: FUNAI ELECTRIC CO. LTD
Reel/Frame 051503/0424 →