Black dyes composition for ink-jet inks
AssigneeEverlight USA, Inc.
InventorsJen-Fang Lin, Chien-Wen Lee, Tzu-Kwei Sun, Tsung-Wen Huang
Life of this patent
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Abstract
The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; (B) a compound of the following formula (II) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; and (C) a compound of the following formula (III) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; these compositions are particularly suitable for using in paper inkjet printing ink, and inkjet printing inks with good light-fastness and solubility are obtained.
Claims11
A black dyes composition for ink-jet printing inks, comprising:
- (A) a compound of the following formula (I)
- wherein
- R1 is —SO2CH═CH2 or —SO2CH2CH2OH;
- M is H, Na, or Li;
- (B) a compound of the following formula (II)
- wherein
- R1 and M are defined as above;
- and
- (C) a compound of the following formula (III)
- wherein
- R1 and M are defined as above,
- wherein said R1 of the formula (I) is —SO2CH═CH2 or SO2CH2CH2OH;
- wherein said R1 of the formula (II) is —SO2CH═CH2 or SO2CH2CH2OH;
- and,
- wherein said R1 of the formula (III) is —SO2CH═CH2 or SO2CH2CH2OH.
Dependencies are inferred from the claim text.