As an important branch of water-based inks, water-based screen printing ink has been widely used in multiple fields due to its environmental friendliness and excellent printing performance. Green Spring Technology Co., Ltd., as a professional manufacturer of water-based inks, utilizes nano-organic (or inorganic) pigments, imported special screen functional lotion, and related additives, which are processed through certain physical reactions to produce a high-grade water-based ink. The product is non-toxic, harmless, low in VOC emissions, pollution-free, highly heat-resistant, rub-resistant, and soap-resistant. It is a high-grade water-based screen printing ink specifically developed for screen printing. The product line covers multiple specialized fields, providing targeted solutions for different substrates.
The application fields of water-based screen printing ink are very extensive, mainly concentrated in the packaging printing field where high requirements for environmental protection and safety are imposed.
PC sheets, PVC films, PET films, PU films, etc. are important substrates for water-based screen printing inks, including printing on helmets, gift box packaging, luggage, clothing, etc. Green Spring provides water-based screen printing inks to meet the stringent requirements of this field, which include being non-toxic, odorless, and compliant with international safety standards such as FDA food-grade certification and EU REACH standards.
Water-based screen printing ink can be printed well on ABS plastic, suitable for printing on toys, electronic product casings, and other products. It can also be printed well on PC sheets, which can be made into mobile phone backplates, with strong adhesion, good leveling, good flame retardancy, strong adhesion to adhesives, no weakening, and high OD value. It can be applied to PC helmet printing, with good leveling, high OD value, bright colors, good stretchability, no cracking in blister packaging, and good interlayer adhesion. It can be printed well on soft PVC inflatable products such as swimming pools, swimming rings, surfboards, etc., effectively sealing the DOP plasticizer on soft PVC from leaching out, maintaining bright colors and resisting discoloration from chlorine water immersion. It has good drying properties, no re-adhesion, and no odor.
In response to the technical challenges that may be encountered in the practical application of water-based screen printing, ink manufacturers such as Green Spring and the printing industry have jointly proposed a series of solutions.
Environmental and Safety Solutions: The greatest advantage of water-based ink lies in its environmental friendliness. It does not contain volatile organic compounds (VOCs), significantly reducing the emission of organic volatiles, which is beneficial to operator health and environmental protection. Green Spring’s ink products have passed international certifications, ensuring their environmentally friendly, healthy, non-toxic, and odorless properties.
Printing performance optimization scheme: To enhance printing effects, various additives are incorporated into the ink formula. For instance, defoaming agents are used to suppress and eliminate the generation of bubbles, thereby preventing issues such as white gaps and uneven ink color in the printed matter. The addition of slow-drying agents can decelerate the drying speed of the ink, preventing it from drying on the printing plate or anilox roller, and reducing malfunctions like plate blockage and ink smearing.
Drying speed improvement solution: The relatively slow drying speed of water-based ink is one of its main challenges. Solutions include setting a higher drying temperature (typically 20~30℃ higher) than that of solvent-based ink; adopting new drying methods such as high-frequency dielectric heating or microwave heating; and increasing the surface temperature of the substrate (such as paper) through preheating to accelerate drying.
In summary, water-based screen printing inks play a significant role in printing fields such as helmets, gift box packaging, luggage, and clothing. Through continuous optimization of ink formulations (such as the use of high-performance resins and reasonable addition of additives) and improvement of printing processes (such as the adoption of efficient drying techniques), water-based screen printing technology is overcoming its inherent challenges and providing the market with more environmentally friendly, safe, and high-performance printing solutions.