Ink, ink cartridge, and inkjet recording apparatus

Abstract

Provided is an ink containing at least: an inorganic pigment having a surface hydrophobicity; resin particles; and water.

What is claimed is: 
     
         1 . An ink, comprising:
 an inorganic pigment having a surface hydrophobicity;   resin particles; and   water.   
     
     
         2 . The ink according to claim
 wherein the inorganic pigment having a surface hydrophobicity is titanium dioxide.   
     
     
         3 . The ink according to  claim 1 ,
 wherein the inorganic pigment having a surface hydrophobicity is obtained by applying a silicone surface treatment or an alkyl surface treatment to an inorganic pigment.   
     
     
         4 . The ink according to  claim 1 ,
 wherein a particle diameter (D50) of the inorganic pigment having a surface hydrophobicity at a 50% cumulative mean in a volume-basis particle size distribution thereof is from 200 nm to 600 nm.   
     
     
         5 . The ink according to  claim 1 ,
 wherein the resin particles are at least one kind selected from the group consisting of styrene acrylic resin particles, acrylic silicone resin particles, polyurethane resin particles, and acrylic urethane resin particles.   
     
     
         6 . The ink according to  claim 1 ,
 wherein a content of the resin particles is from 0.1% by mass to 20% by mass.   
     
     
         7 . The ink according to  claim 1 ,
 wherein the ink is a white ink.   
     
     
         8 . The ink according to  claim 1 ,
 wherein the ink is for inkjet recording.   
     
     
         9 . An ink cartridge, comprising:
 an ink; and   a container in which the ink is contained,   wherein the ink comprise:   an inorganic pigment having a surface hydrophobicity;   resin particles; and   water.   
     
     
         10 . An inkjet recording apparatus, comprising:
 an ink flying unit configured to apply an impulsion to an ink to fly the ink, to thereby record an image on a recording medium,   wherein the ink comprises:   an inorganic pigment having a surface hydrophobicity;   resin particles; and   water.   
     
     
         11 . An inkjet recording method, comprising:
 applying an impulsion to the ink according  claim 1  to fly the ink, to thereby record an image on a recording medium.   
     
     
         12 . An image forming method, comprising:
 forming an image over a base material using the ink according to  claim 1 .   
     
     
         13 . An ink recorded matter, comprising:
 an image formed over a base material sing the ink according to  claim 1 .