Ink, ink cartridge and ink jet recording method

Ink, ink cartridge and ink jet recording method

  • CN 102,746,737 A
  • Filed: 04/19/2012
  • Published: 10/24/2012
  • Est. Priority Date: 04/19/2011
  • Status: Active Application
First Claim
Patent Images

1. China ink, it comprises pigment dyestuff, water soluble resin and tensio-active agent, wherein:

  • Said pigment dyestuff comprises the pigment of dispersion certainly that its particle surface bonding comprises the functional group of phosphonyl group at least;

    The acid number of said water soluble resin is that 100mgKOH/g is above to 160mgKOH/g;

    Said tensio-active agent comprises the ethylene oxide adduct of the higher alcohols that is selected from the group of being made up of linear primary alcohol, linear secondary alcohol and iso-alkyl alcohol, and the HLB value of the said tensio-active agent through Griffin method mensuration is more than 13.0;

    WithThe content (quality %) of said tensio-active agent in said China ink is to below 0.70 more than 0.07 with the mass ratio of the content (quality %) of said water soluble resin in said China ink.

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