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Liquid composition, set of liquid composition and ink, ink jet recording apparatus, and image forming method

  • US 7,517,073 B2
  • Filed: 09/14/2005
  • Issued: 04/14/2009
  • Est. Priority Date: 03/16/2004
  • Status: Expired due to Fees
First Claim
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1. A liquid composition for use in an image recording method comprising the steps of:

  • applying an ink containing a colorant in a dissolved state or a dispersed state to a recording medium; and

    applying to the recording medium a liquid composition that destabilizes the dissolved state or the dispersed state of the colorant in the ink by coming into contact with the ink,the liquid composition comprising at least a polyvalent metal ion, water, a water-soluble organic compound 1, and a water-soluble organic compound 2,wherein a content X (mass %) of the water-soluble organic compound 1 is 15 mass % or more with respect to a total amount of the liquid composition,wherein the content X (mass %) of the water-soluble organic compound 1 with respect to the total amount of the liquid composition and a content Y (mass %) of the water-soluble organic compound 2 with respect to the total amount of the liquid composition satisfy the following relationship;


    0<

    Y/X

    0.9wherein the water-soluble organic compound 1 is a water-retentive, water-soluble organic compound having a difference between a water retention ability in an environment of a temperature of 23°

    C. and a humidity of 45% and a water retention ability in an environment of a temperature of 30°

    C. and a humidity of 80% of 36% or less,wherein the water-soluble organic compound 1 is selected from the group consisting of;

    a polyethylene glycol, a polyhydric alcohol compound that is trihydric, and N,N-bis(2-hydroxyethyl)-urea,wherein the water-soluble organic compound 2 is a water-soluble organic compound other than the colorant or the water-soluble organic compound 1,wherein the polyvalent metal ion in the liquid composition is a divalent metal ion.

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