Phase change inks containing graphene-based carbon allotrope colorants, water-based ink and using method thereof

A carbon allotrope, phase change ink technology, applied in the direction of ink, copy/marking method, application, etc., can solve the problems of complex technology, pigment ink jetting, etc.

Inactive Publication Date: 2010-06-16
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding pigmented inks to inkjet inks can be technically complex, and pigmented inks can also have jetting issues

Method used

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  • Phase change inks containing graphene-based carbon allotrope colorants, water-based ink and using method thereof
  • Phase change inks containing graphene-based carbon allotrope colorants, water-based ink and using method thereof
  • Phase change inks containing graphene-based carbon allotrope colorants, water-based ink and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0188] Preparation of Pigment Dispersion Extrudate A. The curable amide gelling agent, the triamide resin, described in Example VIII of US Patent 7,279,587, was prepared in the form of flakes or blocks and then processed into powder using a blender. Thereafter, powdered triamide resin (38.1 equivalents) and carbon nanotubes (12.2 equivalents) were mixed for 30 minutes in a LITTLEFORD M5 mixer set at 0.8 amps. Subsequently, the powder mixture was fed into a DAVO counter-rotating twin-screw extruder (model VS 104, available from Deutsche Apparate-Vertrieborganisation GmbH & Co, Troisdorf, Germany) at a rate of 0.8 lbs / hr. The contents of the extruder were then mixed at 70°C at 50 RPM. The outlet temperature was set at 75°C. The extruded dispersion (extrudate A) was melt mixed with other ink ingredients to form an ink.

[0189] Ink Example 1. Extrudate A (1 equiv) and PETROLITE CA-11 (a dipolyurethane; 0.3 equiv) were weighed in a 250 mL beaker (A). will be purchased from Cr...

Embodiment 2

[0192] A carbon nanotube-based ink was prepared as in Ink Example 1, except that the double polyurethane WB-5 dispersant purchased from Baker Petrolite was used instead of PETROLITE CA-11.

Embodiment 3

[0194] A carbon nanotube-based ink was prepared as in Ink Example 1, except that the double polyurethane WB-17 dispersant purchased from Baker Petrolite was used instead of PETROLITE CA-11.

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Abstract

A phase change ink including (a) a phase change ink carrier and (b) a colorant comprising a carbon allotrope.

Description

technical field [0001] Disclosed herein are hot melt or phase change inks and methods of using them. One embodiment relates to a hot melt ink or phase change ink comprising a phase change ink vehicle and a colorant comprising a carbon allotrope colorant which in some embodiments in fullerenes and in other embodiments carbon nanotubes. Another embodiment relates to an aqueous ink comprising an aqueous liquid vehicle and a colorant comprising a carbon allotrope. Another embodiment relates to a method comprising (a) adding to an inkjet printing device a phase change ink comprising a phase change ink vehicle and a carbon allotrope comprising a colorant of a colorant, the carbon allotrope colorant being a fullerene in some embodiments and a carbon nanotube in other embodiments; (b) melting the ink; (c) melting the Droplets of the molten ink are ejected in an image-wise pattern onto the surface of a recording substrate, directly or via an intermediate thermal transfer belt or dru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02
CPCC09D11/34C09D11/324Y10S977/752Y10S977/902Y10S977/75Y10S977/742B41J2/01B41M5/00
Inventor J·D·梅奥S·S·巴得沙
Owner XEROX CORP
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