IP Library › Patent Application 15532345
Patent Application
App. No. 15/532,345

CARBON BLACK PIGMENT FOR IMPROVED DURABILITY

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Quick Facts
Patent No.
US None
App. No.
15/532,345
Abstract

The present disclosure provides an ink for inkjet printing. The inkjet ink comprises a carbon black pigment dispersion. The carbon black pigment in the dispersion has low oil absorption.

Claims (10)

1 . An inkjet ink comprising a pigment dispersion wherein said pigment dispersion comprises a carbon black pigment and an aqueous vehicle, wherein said pigment has an oil absorption of between about 110 to about 50.

2 . The ink of claim 1 , wherein said oil absorption is between about 95 to about 50.

3 . The ink of claim 2 , wherein said ink is printed on a low porosity media.

4 . The ink of claim 3 , wherein said pigment is dispersed by a polymeric dispersant.

5 . The ink of claim 4 , wherein said polymeric dispersant is a polyurethane.

6 . The ink of claim 5 , further comprising a polymeric binder.

7 . The ink of claim 6 , wherein the ratio of said pigment to the total of said polymeric dispersant and said polymeric binder is at least about 7:1.

8 . The ink of claim 3 , wherein said pigment is a self-dispersing pigment.

9 . The ink of claim 8 , further comprising a polymeric binder.

10 . The ink of claim 9 , wherein the ratio of said pigment to said polymeric binder is at least about 7:1.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT ELECTRONICS, INC.
Reel/Frame 049583/0269 →
CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE FIRST CONVEYING NAME PREVIOUSLY RECORDED ON REEL 044953 FRAME 0337. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 21, 2018
From: ANTON, WAIFONG LIEW; KLUTH, ANTHONY W; WOLFE, MICHAEL STEPHEN
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 045397/0787 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2018
From: ANON, WAIFONG LIEW; KLUTH, ANTHONY W; WOLFE, MICHAEL STEPHEN
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 044953/0337 →