Water Based Ink for Gravure Printing

Water-based gravure ink formulated for flexible packaging applications including PE, BOPP films. VOC content tested at 16.1%, compliant with GB 38507-2020 standard for water-based inks.
Compared to conventional solvent-based inks, VOC emissions are reduced by approximately 70%. Third-party test report available upon request. Free sample offered for on-machine trial.

Weight	Package	Unit-Price
5kg	1 bucket	$ 6.**
20kg	1 drum	$ 6.**
>100kg	>20 barrels	$ 5.**

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Product Introduction

Excellent environmental performance: Water based ink significantly reduces VOC emissions, is harmless to the environment and the health of operators, and is a green packaging printing material.

Excellent printing effect: The color is pure, odorless, and has excellent redissolved, overprinting, and leveling properties. During the printing process, the printed products have a strong sense of three dimensionality, clear layers, and bright and full colors.

High safety performance: non flammable, non explosive, in line with food hygiene requirements, eliminating adverse odors in the production environment, making the working environment healthier and the air fresher.

Strong applicability: Suitable for multi-color overprinting on gravure medium and high-speed printing machines, different colors can be customized according to customer requirements to meet different printing needs.

MSDS Download: Water-based-gravure-ink-msds.pdf

Application requirements

Printing process: During gravure printing, a part of the printing plate cylinder is immersed in the ink tank and rotates, and the ink is applied to the entire surface of the printing plate. Then, the ink scraper scrapes off the blank part of the ink, squeezes the ink into the concave cavity of the printing plate, and the ink is pressed onto the surface of the substrate by the imprinting mechanism.

Drying conditions: The general drying temperature is controlled at 90-100 ℃, and it is recommended to increase the air volume to facilitate the rapid discharge of water vapor. On gravure printers with heating devices, ink drying speed is faster and suitable for printing absorbent materials.

Viscosity and pH adjustment: It is recommended to maintain a viscosity of 18-20 seconds (measured at 25 ℃ using a Zein cup 2 #) and a pH value between 7.5-8.5 to achieve the best printing effect. Before use, stir thoroughly and adjust the viscosity according to the printing speed.

Equipment requirements: It is recommended to use electronic engraving or laser engraving intaglio, with shallow mesh depth to adapt to the high boiling point characteristics of water-based ink.

Item	Details
Solid Content	30 - 40%
Viscosity	8 - 10 seconds/25°C (DIN4 Cup)
PH Value	7.5 - 9.0
Drying Time	Several minutes
Glossiness	60°, glossiness is 40 - 60%
Printing Speed	150 - 200 meters per minute
Color	Customized according to Pantone color number
Packaging Method	In plastic drums
Specification	5kg, 20kg
Origin	Guangdong, China
Brand	StarColor

Data Download: Technical specification manual for gravure water-based ink

Storage and precautions

Storage conditions: Water based ink should be stored in a cool and ventilated place, with a warehouse temperature of 5-35 ℃, stacking no more than three layers, and a shelf life of one year (with no damage to the packaging).

Attention to use: Do not mix with solvent ink or ink from other manufacturers to avoid ink deterioration and scrap. Before the first use of the printing plate, the surface oil stains need to be cleaned to prevent oil stains from entering the ink. After printing is completed, the plate roller should be cleaned in a timely manner to avoid ink drying and blocking the plate.

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