Uv Print Ink
UV print ink is a special type of ink that is designed for use in UV printing machines. This ink is formulated with specific materials and ingredients to provide unique properties that make it ideal for certain applications.
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Product Introduction
The typical formula of UV ink includes:
Main resin (20-30%): provides adhesion and mechanical strength, such as acrylic polyurethane resin, acrylate resin with functionality ≥4.
Active monomer (30-60%): adjusts viscosity and participates in cross-linking, including difunctional monomers (such as 1,4-butanediol diacrylate) and monofunctional monomers (such as isobornyl acrylate).
Photoinitiator (5-15%): such as acylphosphine oxide, thioxanthone derivatives, absorbs ultraviolet light to trigger the reaction.
Functional additives: dispersants (such as Solsperse 24000) ensure uniform dispersion of pigments, and inhibitors prevent premature curing during storage.
Pigment system: high-purity pigments with a particle size of < 1μm, providing 7-8 light fastness, and 8 color combinations such as C, M, Y, K, white, and transparent are optional.
Breakthrough performance advantages
Extremely fast curing: Instant drying on a 15-25m/min production line, significantly improving production capacity.
Full material compatibility: Directly print non-absorbent materials such as metal, glass, ceramic, ABS, etc., without coating pretreatment.
Excellent durability: The hardness of the cured film layer is more than 3H, and it is resistant to scrubbing, solvents, and UV rays, with an outdoor service life of more than 5 years.
Key technical parameters
Viscosity range: 20-50mPa・s (25℃), ensure nozzle smoothness
Curing energy: ≥120mJ/cm², needs to match medium and high pressure mercury lamp or LED curing system
Solid content: close to 100%, no solvent evaporation loss
Adhesion: passed the hundred grid test, more than 70-80% adhesion rate
Color gamut coverage: CMYK + white ink system, can achieve more than 90% Pantone color reproduction
UV print ink is a special type of ink that is designed for use in UV printing machines. This ink is formulated with specific materials and ingredients to provide unique properties that make it ideal for certain applications. In this response, we will discuss the materials used in UV print ink, its use cases, and some of its key functions.
In conclusion, UV print ink is a highly versatile and functional ink that is commonly used in a variety of printing applications. Its unique properties make it ideal for large format printing, packaging printing, and industrial printing applications. With its fast drying time, excellent adhesion, and resistance to water, chemicals, and abrasion, it is an excellent choice for applications that require durability and longevity.
Precautions for use
Equipment matching: Choose a nozzle compatible with the UV curing system (such as Ricoh G5, Kyocera KJ4B) to avoid clogging.
Environmental control: Storage temperature 5-25℃, avoid light and moisture to prevent premature activation of the photoinitiator.
Safety protection: Wear UV protective glasses and gloves during operation to avoid uncured ink contact with the skin.
Substrate pretreatment: It is recommended to use a special coating to improve adhesion on dense surfaces such as metal and glass.
Curing verification: Regularly test the energy output of the UV lamp to ensure sufficient curing and avoid residual unreacted monomers.
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