Digital printing ink and preparation method thereof

Abstract

The invention relates to the technical field of printing raw materials and particularly discloses digital printing ink and a preparation method thereof.The digital printing ink is prepared from, by mass, 9.0-25.0% of a wetting agent, 3.0-10.0% of a penetrating agent, 0.25-0.5% of a surface active agent, 10.0-60.0% of color paste, 0.2% of preservative and the balance distilled water.The preparation method includes the steps that the penetrating agent, the wetting agent and the surface active agent in the formula are sequentially added into a reaction kettle slowly, stirring is started and conducted at the rotation speed of 70 rpm, the distilled water accounting for 50% of the total content in the formula is slowly added, then the color paste is added slowly, and stirring is conducted at a low speed; the remaining distilled water in the formula is weighed, added into the reaction kettle slowly and stirred at a low speed for 30 minutes, and the preservative is added; a pH blending agent is utilized to adjust the pH value of a product to be 7.5-8.5, the product surface tension is controlled to be 35-42 mN / m, and viscosity at the temperature of 25 DEG C is 3-5 cps; after the steps are completed, the mixture stands still and is filtered and output.The digital printing ink and the preparation method thereof are low in preparation cost and better in printing effect, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of printing raw materials, in particular to a digital ink and a preparation method thereof. Background technique [0002] Digital inkjet printing is to pass the pattern through the scanner, edit the design pattern through the computer printing color separation and drafting system, and then use the computer to control the micro piezoelectric inkjet nozzle to directly spray the special dye solution (collectively referred to as digital inkjet printing ink) On to textiles, the colors mix and return to the original scanned pattern. As one of the main consumables of digital inkjet printing, digital ink is also a key factor determining the success of inkjet printing technology. In the prior art, digital ink raw materials have large particle size, poor penetration, and low adhesion; the printing fastness is low, not resistant to washing and sunlight, and it is easy to cause color spots and stains during printing; t...

AI Technical Summary

Problems solved by technology

In the prior art, digital ink raw materials have large particle size, poor penetration, and low adhesion; the printing fastness is low, not resistant to washing and sunlight, and it is easy to cause color spots and stains during printing; the raw material particle size is large It is easy to block the digital nozzle, and the printing is not smooth. The digital nozzle needs to be replaced frequently, which is not good for protecting the digital machine; and it generally needs high-temperature steam ironing after printing, which is time-consuming and energy-consuming

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