Coating ingredients for Flexographic Inks

EBECRYL® 578 by allnex is an inert resin diluted in trimethylolpropane ethoxylate triacrylate (TMPEOTA). It possesses medium viscosity, and is VOC-, chloride- and solvent-free. It is developed for ultraviolet light (UV) or electron beam (EB) cured offset lithographic inks and coating.

• It provides good adhesion to various substrate such as metallic and plastic materials.
• It exhibits good pigment wetting and high reactivity and cure speed, and low color for clearcoat.
• EBECRYL® 578 is used in other applications such as screen, gravure, flexo and overprint varnish.
• It has a shelf life of 2 years.

EBECRYL® 3701 by allnex is a VOC-, solvent- and tin-free, modified bisphenol A epoxy diacrylate. It imparts flexibility and toughness to ultraviolet light (UV) or electron beam (EB) cured coatings and inks, while maintaining fast cure response and superior chemical resistance that are typical of standard epoxy acrylates.

• It provides high gloss, and good abrasion and impact resistance.
• Formulated UV/EB curable products containing EBECRYL® 3701 may be applied via direct or reverse roll, offset gravure, metering rod, slot die, knife-over-roll, air knife, curtain, immersion and spin coating methods.
• It is recommended for clear coatings for paper, wood and rigid plastic, as well as lithographic, screen and flexographic ink vehicles.

EBECRYL® IBOMA by allnex is a low viscosity, high purity, mono-functional isobornyl methacrylate monomer. It polymerizes when exposed to sources of free radicals and forms homopolymers & copolymers. It contains MeHQ (90-180 ppm) as stabilizer.

• It is compatible with a wide range of acrylated- and methacrylated resins.
• It is used as a co-agent to improve hardness, flexibility, chemical- and weather resistance of coatings.
• It is suitable for UV- and thermally cured applications like flexographic printing plates.
• EBECRYL® IBOMA has a shelf life of 2 years.

EBECRYL® 812 by allnex is an ultraviolet light (UV) or electron beam (EB) curable polyester acrylate. Its low viscosity and outstanding color development properties make this product ideal for high pigment content & low viscosity flexographic inks. Inks made using this vehicle have excellent adhesion to a variety of substrates. It shows excellent adhesion to PS, biaxially oriented polypropylene (BOPP), SBS and smooth, high gloss and cast-coated paper stock. EBECRYL® 812 is suitable for producing strong, clean, and transparent color concentrates via 3-roll mill.

EBECRYL® 367 by allnex is a low VOC, solvent-free polyester acrylate designed to be used at additive levels in UV/EB inks and coatings to improve adhesion onto plastic substrates.

• It is bisphenol A (BPA)-, tin- free grade and offers low viscosity and low acidity.
• It exhibits low migration, long pot life, low color for clearcoat, faster cycle time, lower energy consumption and low flammability.
• It is suitable for use in radiation curable coating compositions, white flexographic inks, paints and overprint varnishes.
• It may be applied by flexography, inkjet and gravure, direct and reverse roll.
• The typical addition level is 10% by weight or more.
• The shelf life of EBECRYL® 367 is 6 months.

Sasolwax H1N4-G distributed by DKSH is a (ground wax) micronized FT hardwax. It possesses slip-, enhanced scratch- and rub resistance. Exhibits good overprint ability in flexographic, gravure- and paste inks.

• It provides hydrophobicity as well as surface protection in wood coatings.
• It is suitable for degassing and pin hole reduction in powder coating.
• Sasolwax H1N4-G is available in Europe.

EBECRYL® 441 by allnex is a highly reactive, chlorinated, bisphenol-A-free polyester resin. It offers improved ink-water balance and lower misting. Exhibits good pigment wetting and dispersion characteristics and is useful as a pigment grinding resin in lithographic ink formulations. It can be diluted with reactive monomers like HDDA, TMPTA, TPGDA and OTA 480. It is designed for screen, gravure inks and flexographic printing. UV curing inks produced with EBECRYL® 441 offers high reactivity and excellent adhesion to plastic, metal and paper substrates.

EBECRYL® 145 by allnex is Xi-free aliphatic difunctional acrylate of low surface tension. Propoxylated neopentyl glycol diacrylate exhibits good viscosity reducing and solvency characteristics in UV/EB curable formulations. It is also an effective monomer for developing low viscosity and low volatility coatings and inks. During formulating it provides pigment wetting and flow & leveling properties. It also offers minimum film shrinkage, reactivity, weatherability, water & chemical resistance, flexibility, hardness and abrasion resistance. EBECRYL® 145 is recommended for clear & pigmented coatings, over print varnishes and liquid inks (flexography, lithography, inkjet & gravure). The shelf life of the product is 2 years.

VANCRYL® 450 by allnex is a high solids colloidal dispersion that can be neutralized with ammonia or other alkaline materials to provide an outstanding vehicle for corrugated printing ink applications. VANCRYL® 450 at 40% solids reduces the cost in ink systems based on pre-neutralized colloidal acrylics.

Sasolwax Spray 30G-EF distributed by DKSH is a Fischer-Tropsch extra fine micronized wax. Exhibits no softening in thin film solvent-based formulations. Sasolwax Spray 30G-EF is used in flexographic, paste inks and can coatings.