High-saturation scarlet color dye ink for high-speed inkjet process
AssigneeKorea Institute of Industrial Technology
InventorsJun Choi, Sol Choi, Kwan Hyun Cho, Eui Sang Yoo
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Abstract
Highly saturated scarlet dye ink for a high-speed inkjet process and a method of preparing the highly saturated scarlet dye ink are disclosed. In particular, an ink composition according to the present invention includes a dye including a compound represented by Formula 1, and further includes, in addition to the dye, distilled water, a surfactant, and an additive. The ink composition develops a highly saturated scarlet color that is unable to be developed by existing inks for digital textile printing (DTP), and has high water solubility, excellent heat resistance, and light-fastness, and thus may be effectively used as dye and ink for a high-speed inkjet process.
Claims5
A scarlet dye ink composition comprising:
- about 3 wt % to about 10 wt % of a scarlet dye;
- about 60 wt % to about 80 wt % of distilled water;
- about 5 wt % to about 15 wt % of a surfactant;
- and
- about 5 wt to about 25 wt % of an additive,
- wherein the scarlet dye comprises a compound represented by Formula 1 below:
- wherein, in Formula 1, R1 is any one selected from the group consisting of Cl, Br, and SO3H, and
- R2 is any one selected from the group consisting of Cl, Br, and SO3H.
A scarlet dye ink composition comprising:
- a scarlet dye;
- distilled water;
- a surfactant;
- and
- an additive,
- wherein the scarlet dye comprises a compound represented by Formula 1 below:
- wherein, in Formula 1, R1 is any one selected from the group consisting of Cl, Br, and SO3H, and
- R2 is any one selected from the group consisting of Cl, Br, and SO3H,
- wherein the scarlet dye is purified using a method comprising:
- dissolving the scarlet dye before desalination in a dispersion solvent;
- filtering the resulting solution under reduced pressure;
- precipitating the filtrate in an organic solvent;
- filtering the precipitate under reduced pressure and drying the resulting precipitate in a vacuum oven;
- and
- removing free salt from the dried precipitate through a membrane filter.
A scarlet dye ink composition comprising:
- a scarlet dye;
- distilled water;
- a surfactant;
- and
- an additive,
- wherein the scarlet dye comprises a compound represented by Formula 1 below:
- wherein, in Formula 1, R1 is any one selected from the group consisting of Cl, Br, and SO3H, and
- R2 is any one selected from the group consisting of Cl, Br, and SO3H,
- wherein the additive comprises one or more selected from the group consisting of alcohols, glycols, caprolactam, and glycerin.
A digital textile printing (DTP) method using a scarlet dye ink composition and an inkjet printer,
- wherein the scarlet dye ink composition comprising:
- a scarlet dye;
- distilled water;
- a surfactant;
- and
- an additive,
- wherein the scarlet dye comprises a compound represented by Formula 1 below:
- wherein, in Formula 1, R1 is any one selected from the group consisting of Cl, Br, and SO3H, and
- R2 is any one selected from the group consisting of Cl, Br, and SO3H.
Dependencies are inferred from the claim text.