Color ink set for ink-jet recording

Patent 5948154 Issued on September 7, 1999. Estimated Expiration Date:

August 20, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Recording liquid
Patent #: 4661158
Issued on: 04/28/1987
Inventor: Kobayashi , et al.

Monoazo dyestuffs containing substituted amino triazine
Patent #: 4771129
Issued on: 09/13/1988
Inventor: Kawashita , et al.

Ink jet printing inks
Patent #: 5383960
Issued on: 01/24/1995
Inventor: Gregory, et al.

Ink, ink-jet recording method, and ink-jet recording apparatus
Patent #: 5395434
Issued on: 03/07/1995
Inventor: Tochihara, et al.

Specific dye set for thermal ink-jet printing
Patent #: 5534051
Issued on: 07/09/1996
Inventor: Lauw

Thermal ink-jet inks having reduced black to color and color to color bleed
Patent #: 5536306
Issued on: 07/16/1996
Inventor: Johnson, et al.

Recording liquid
Patent #: 5599386
Issued on: 02/04/1997
Inventor: Sano, et al.

Yellow ink composition for ink-jet printing and image recording method using the same
Patent #: 5622550
Issued on: 04/22/1997
Inventor: Konishi, et al.

Aqueous ink composition and method of recording using the same
Patent #: 5704969
Issued on: 01/06/1998
Inventor: Kanaya, et al.

Recording liquid
Patent #: 5713992
Issued on: 02/03/1998
Inventor: Satoh, et al.

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Inventors

Application

No. 860535 filed on 08/20/1997

US Classes:

106/31.48, Acyclic azo attached directly or indirectly to the heterocyclic ring by nonionic bonding106/31.47, Six-ring members in the heterocyclic ring106/31.52, Plural acyclic azo group component containing106/31.58Organic oxygen compound containing

Examiners

Primary: Klemanski, Helene

Attorney, Agent or Firm

Ladas & parry

International Class

C09D 011/02

Foreign Application Priority Data

1995-11-02 JP

Abstract

A yellow ink composition and a magenta ink composition are provided which have good properties satisfying requirements for a color ink jet recording ink, particularly a requirement that the color ink composition is less likely to cause clogging of nozzles, and can realize a printed image having excellent tone, waterfastness, storage stability, and lightfastness. Further, a color ink set comprising the above ink compositions in combination with a particular cyan ink composition and a particular black ink composition are also provided. A yellow ink composition comprising a dye represented by the following formula (XI) in combination with a dye represented by the following formula (XII) is a fundamental color ink composition: ##STR1## wherein R101 and R102 represent phenyl or naphthyl substituted by a hydroxyl group, --SO3 M, or --COOM.