Pigment inks for ink jet printers
AssigneeFuji Pigment Co., Ltd.
InventorsIshio Kuge, Shiro Mori, Estuo Ikemoto
Life of this patent
Estimating the term…
Abstract
A pigmented ink for ink jet printer which comprises pigment particle as a colorant, water or a mixture of water and at least one hydrophilic organic solvent as a carrier medium and a derivative of polyoxyethylene ether sulphate or a derivative of polyoxyethylene ether phosphate as a dispersant. These inks give images having good print quality and excellent storage stability after many thermal cycles of -20.degree. C. to 80.degree. C.
Claims8
A pigmented ink composition consisting of:
- 30 parts by weight of carbon black;
- 10 parts by weight of polyoxyethylene laurylether phosphate;
- 28parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 50 parts by weight of glycerol;
- 150 parts by weight of diethyleneglycol;
- 2 parts by weight of 48% NaOH solution;
- and
- 728 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 30 parts by weight of carbon black;
- 10 parts by weight of polyoxyethylene nonylphenylether phosphate;
- 30 parts by weight of ethylene glycol;
- 2 parts by weight of ammonia water;
- 2 parts by weight of preservative;
- 200 parts by weight of glycerol;
- 50 parts by weight of propylene glycol;
- and
- 676 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 40 parts by weight of C.I. Pigment Yellow 17;
- 10 parts by weight of polyoxyethylene laurylether phosphate monoethanol amine;
- 40 parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 200 parts by weight of diethylene glycol;
- and
- 703 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 30 parts by weight of C.I. Pigment Red 122;
- 15 parts by weight of dipolyoxyethylene nonylphenyl ether phosphate;
- 30 parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 1 part by weight of 48% NaOH solution;
- 200 parts by weight of glycerol;
- 2 parts by weight of ammonia;
- and
- 720 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 40 parts by weight of carbon black;
- 10 parts by weight of polyoxyethylene laurylether sulphate;
- 28 parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 50 parts by weight of glycerol;
- 150 parts by weight of diethylene glycol;
- 1 part by weight of 48% NaOH solution;
- and
- 699 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 30 parts by weight of carbon black;
- 10 parts by weight of polyoxyethylene oleylether ammonium sulphate;
- 30 parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 200 parts by weight of glycerol;
- 50 parts by weight of propylene glycol;
- 1 part by weight of ammonia water;
- and
- 676 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 30 parts by weight of C.I. Pigment Red 122;
- 15 parts by weight of polyoxyethylene nonylphenylether ammonium sulphate;
- 30 parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 200 parts by weight of glycerol;
- 2 parts by weight of ammonia water;
- and
- 721 parts by weight of deionized water.
A pigmented ink composition consisting of:
- 20 parts by weight of C.I. Pigment Blue 15;
- 15 parts by weight of polyoxyethylene alkylether triethanolammonium sulphate;
- 20parts by weight of ethylene glycol;
- 2 parts by weight of preservative;
- 200 parts by weight of diethylene glycol;
- 10 parts by weight of ethyleneglycol dimethylether;
- 5 parts by weight of triethanol amine;
- and
- 733 parts by weight of deionized water.
Dependencies are inferred from the claim text.