Ink-jet ink of digit printing active dye for textiles and production Tech. thereof

Abstract

The invention relates to dry goods digital printing reactive dyeing jet ink. Its component weight percentage are as follows: dye 1-10%, humectant 10-15%, scale remover 1-5%, bactericide 0.2-1%, pH value control agent 1-5%, penetrant 0.5-5%, rest deionized water. Its production technique includes the following steps: mixing them at normal temperature; fully stirring for 0.5-1hours; standing the mixed solution at 50-70 centigrade degree for 24-48 hours to gain curing mixed solution; filtering the cured mixed solution orderly through 1 micron, 0.5 micron, 0.22 micron filter membrane. The invention can be applied in paper printing, also can be used as dry goods digital printing reactive dyeing jet ink.

Description

technical field [0001] The invention relates to an inkjet ink and a production method thereof, in particular to a textile digital printing reactive dye inkjet ink and a production process thereof. Background technique [0002] Inkjet printing has been used in the textile industry for many years. This method can save the production of printing screens, so it can save a lot of time and cost. Changes required. [0003] When inkjet ink is applied in the textile industry, the stability, color fastness, washing fastness, and degree of hydrolysis of the ink all need to meet higher requirements. Most of the inks used in the existing textile industry are reactive dye inks, acid dyes or Disperse dyes, among them, the pH value of reactive dyes is easy to increase, and they are prone to hydrolysis or alcoholysis in water, thereby reducing the color fastness of textile printing. Generally, the validity period is not more than three months. It is easy to decompose and cannot be stored f...

AI Technical Summary

Problems solved by technology

[0003] When inkjet ink is applied in the textile industry, the stability, color fastness, washing fastness, and degree of hydrolysis of the ink all need to meet higher requirements. Most of the inks used in the existing textile industry are reactive dye inks, acid dyes or Disperse dyes, among them, the pH value of reactive dyes is easy to increase, and they are prone to hydrolysis or alcoholysis in water, thereby reducing the color fastness of textile printing. Generally, the validity period is not more than three months. It is easy to decompose and cannot be stored for a long time. In addition, because it contains a lot of impurities, it is easy to block the nozzle

[0004] U.S. Patent No. 5,603,756 discloses an ink for textile printing, which includes at least one reactive dye, a polyhydric alcohol, and water, wherein the ink also includes a reaction product of the reactive dye and polyhydric alcohol, but Due to the lack of proper composition of the ink used for this textile printing, the coloring power and color fastness were not good

[0005] U.S. Patent No. 6015454 discloses an ink comprising at least one reactive dye and 1,2-propanediol or N-methyl-2-pyrrolidone, which improves the coloring strength and color fastness. But for long-term storage, not easy to damage the nozzle, etc., there is still room for improvement