Colored particulates for ink jet inks
First Claim
1. An ink for ink jet printing, comprising colored particles dispersed in a liquid vehicle, said colored particles comprising a dye chemically bonded to an emulsifiable polymer resin comprising a hydrophilic moiety, wherein said ink has a surface tension of from about 20 to about 70 dynes/cm and a viscosity of from about 0.7 to about 15 cP at 25°
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Accused Products
Abstract
An ink for ink jet printing includes particles of an emulsifiable dye-polymer resin dispersed in a liquid vehicle, wherein the emulsifiable dye-polymer resin includes a dye chemically attached to the polymer resin. The polymer resin contains a base chain, such as polyester, having attached thereto hydrophilic groups, such as alkali sulfonated groups, for emulsifying the resin in water. The dye may be attached within the base chain itself, or attached to the base chain as a side chain component.
59 Citations
18 Claims
- 1. An ink for ink jet printing, comprising colored particles dispersed in a liquid vehicle, said colored particles comprising a dye chemically bonded to an emulsifiable polymer resin comprising a hydrophilic moiety, wherein said ink has a surface tension of from about 20 to about 70 dynes/cm and a viscosity of from about 0.7 to about 15 cP at 25°
- 15. A process for preparing an ink for ink jet printing, comprising dispersing an emulsifiable dye-polymer resin in a liquid vehicle, wherein said emulsifiable dye-polymer resin comprises a dye chemically bonded to a polymer resin comprising a hydrophilic moiety, wherein said ink has a surface tension of from about 20 to about 70 dynes/cm and a viscosity of from about 0.7 to about 15 cP at 25°
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17. An ink-jet recording process comprising ejecting ink droplets from an orifice in accordance with a recording signal to form an image on a recording medium, wherein said ink comprises colored particles of an emulsifiable dye-polymer resin dispersed in a liquid vehicle, said emulsifiable dye-polymer resin comprising a dye chemically bonded to a polymer resin, wherein said ink has a surface tension of from about 20 to about 70 dynes/cm and a viscosity of from about 0.7 to about 15 cP at 25°
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18. An ink for ink jet printing, comprising colored particles dispersed in a liquid vehicle, said colored particles comprising a dye chemically bonded to an emulsifiable polymer resin, and wherein said ink has a surface tension of from about 20 to about 70 dynes/cm and a viscosity of from about 0.7 to about 15 cP at 25°
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Specification