Aqueous pigment ink composition

Abstract

The invention relates to an aqueous pigment ink composition. The aqueous pigment ink composition comprises: 15 wt%-30 wt% of an aqueous pigment dispersion, 10 wt%-50 wt% of glycerol, 0.5 wt%-1 wt% ofsurfactant, antibacterial agent with the amount greater than 0 wt% and less than 0.1 wt%, defoamer with the amount greater than 0 wt% and less than 0.1 wt%, 10 wt%-20 wt% of adhesive and water. The aqueous pigment ink composition of the invention has suitable physical properties such as average particle size, viscosity, surface tension and acid-base number, can be applied to a digital printing machine, has better operation effect, and ensures that the formed printing has better quality; moreover, when the ink is applied to the fabric, the ink will have a better color fastness, and even after illumination, immersion, soaping or rubbing, the ink will not fall off from the fabric significantly, and the printing formed by the aqueous pigment ink composition can have a better quality.

Description

technical field [0001] The invention relates to a water-based pigment ink composition, especially a water-based pigment ink composition used for fabrics. Background technique [0002] The traditional printing process needs to make a screen first, then apply ink on the screen, and transfer the pattern to the fabric through the screen to complete the printing. However, because a single screen can only transfer one pattern, the process The cost is high, and the amount of colorant used is relatively large, which is likely to cause pollution to the environment. [0003] Therefore, digital printing (digital textile printing, DTP) has been developed in the related field. Computer software is used to make digital patterns to replace the production of screen plates, and then ink-jet methods are used to form patterns corresponding to digital images on fabrics. Digital images are easy to make and easy to modify, which makes digital printing very flexible, and is therefore widely used....

AI Technical Summary

Problems solved by technology

[0002] The traditional printing process needs to make a screen first, then apply ink on the screen, and transfer the pattern to the fabric through the screen to complete the printing. However, because a single screen can only transfer one pattern, the process The cost is high, and the amount of colorant used is large, which is easy to cause pollution to the environment

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