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Ink composition for ink-jet recording and method of ink-jet recording

  • US 6,500,248 B1
  • Filed: 06/14/2000
  • Issued: 12/31/2002
  • Est. Priority Date: 10/15/1998
  • Status: Expired due to Term
First Claim
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1. An ink composition for ink jet recording, comprising at least a pigment, a 1,2-alkanediol, glycerin, a polyhydric alcohol derivative and/or an acetylene glycol surfactant, a water-soluble organic solvent, and water,said pigment having been surface treated to render the pigment dispersible and/or dissolvable in water without any dispersant, said 1,2-alkanediol being at least one member selected from the group consisting of 1,2-butanediol, 1,2-pentanediol, and 1,2-hexanediol, said ink composition having a surface tension of not more than 40 mNm

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    C.

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