Ink composition for inkjet recording, ink cartridge, and recording apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMamoru Soga, Hidekazu Arase
Life of this patent
Estimating the term…
Abstract
An ultraviolet absorber having an acidic group is further added to an ink composition for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that is condensation-polymerized in the absence of the water. A radical trapping agent having an acidic group is further added to an ink composition for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that is condensation-polymerized in the absence of the water.
Claims16
An ink composition used for inkjet recording, comprising:
- a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and an ultraviolet absorber having an acidic group.
An ink cartridge comprising an ink composition for inkjet recording,
- wherein the ink composition includes a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and an ultraviolet absorber having an acidic group.
A recording apparatus comprising an ink composition for inkjet recording, the recording apparatus ejecting the ink composition toward a recording medium,
- wherein the ink composition includes a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and an ultraviolet absorber having an acidic group.
An ink composition used for inkjet recording, comprising:
- a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and a radical trapping agent having an acidic group.
An ink cartridge comprising an ink composition for inkjet recording,
- wherein the ink composition includes a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and a radical trapping agent having an acidic group.
A recording apparatus comprising an ink composition for inkjet recording, the recording apparatus ejecting the ink composition toward a recording medium,
- wherein the ink composition includes a colorant;
- a humectant;
- water;
- a water-soluble substance that is condensation-polymerized in the absence of the water;
- and a radical trapping agent having an acidic group.
Dependencies are inferred from the claim text.