Patent · US Active

Inkjet ink with self-dispersed pigments and hydroxyl terminated polyurethane ink additives

US8931889B2 · kind B2 · utility

9Cited by

12References

17Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

C. Chad Roberts · Wilmington, US
Waifong Liew Anton · Wilmington, US

Key dates

Filing date	Dec 3, 2010
Grant date	Jan 13, 2015
Priority date	—
Expiry date	Oct 30, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/01
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An ink for inkjet is provided for printing, comprising a self-dispersed pigment colorant and certain hydroxyl terminated polyurethanes derived from polyether diols which enhances fastness of the print towards highlighter and finger smudge without compromising jetting performance and storage stability of the ink.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.