Aqueous ink composition for ball-point pen
First Claim
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1. An aqueous ink for a ball-point pen, comprising:
- a pigment;
a water-soluble organic solvent; and
water;
wherein said aqueous ink comprises xanthane gum of substantially about 0.01 to about 0.2 wt. % and an ionic polysaccharide of substantially about 0.2 to about 0.6 wt. %, other than xanthane gum, in a total amount of the ink.
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Abstract
A aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
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Citations
28 Claims
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1. An aqueous ink for a ball-point pen, comprising:
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a pigment;
a water-soluble organic solvent; and
water;
wherein said aqueous ink comprises xanthane gum of substantially about 0.01 to about 0.2 wt. % and an ionic polysaccharide of substantially about 0.2 to about 0.6 wt. %, other than xanthane gum, in a total amount of the ink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification