High fixation ink composition for digital textile printing
AssigneeEverlight Chemical Industrial Corporation
InventorsHsiao-San Chen, Chuan-Hsi Lee, Chien-Yu Chen, Tz-Yi Wu, Hsuan Yang
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Abstract
The present invention is related to a novel high fixation ink composition for digital textile printing, which comprises: (A) at least one reactive dye compound with two reactive groups in an amount of 1% to 50% by weight; (B) an organic buffer in an amount of 0.05% to 10% by weight; (C) a humectant in an amount of 10% to 50% by weight; and (D) a solvent in remaining amount. When the aforesaid ink composition is applied in digital textile printing, fixation rate of dye on fabrics is high.
Claims7
A high fixation ink composition for digital textile printing, comprising:
- (A) at least one reactive dye compound of the following formula (II) in an amount of 1% to 50% by weight;
- (B) an organic buffer or a polyphosphate buffer in an amount of 0.05% to 10% by weight;
- (C) a humectant in an amount of 10% to 50% by weight;
- and
- (D) a solvent in remaining amount;
- wherein A1 is a dye chromophore;
- and n1 and n2 are each independently 1 or 2;
- wherein the dye chromophore is selected from the group consisting of dye chromophores of the following formulas (I-1) to (I-34):
Dependencies are inferred from the claim text.