Coating ingredients for Screen 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® 3703 by allnex is an amine-modified bisphenol A epoxy acrylate. Suitable for clear coatings for paper & plastics, topcoats for wood, and lithographic- & screen ink vehicles.

• It shows an exceptionally fast cure via exposure to ultraviolet light.
• UV/EB cured products based on EBECRYL® 3703 exhibit good flexibility, high gloss, good abrasion- & chemical resistance, and enhanced adhesion to plastics.
• It may be applied by lithographic, screen, gravure, direct or reverse roll, and curtain coating methods.
• It has a shelf life of 2 years.

EBECRYL® 860 by allnex is an epoxidized soya oil acrylate. Exhibits good hydrophilic-lipophilic balance for lithography and good surface appearance. It improves the flow and leveling of UV or electron beam (EB) curable inks and coatings. It enhances pigment & substrate wetting and adhesion when used as a modifier. Recommended for overprint varnishes for paper, lithographic ink vehicles, metal decorating and protective coatings, screen ink vehicles and pigmented wood coatings. Formulated products containing EBECRYL® 860 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, as well as flexographic, lithographic and screen printing.

MARNEX™ AH448 by Macroocean is a high molecular weight, saturated linear polyester resin. It shows excellent adhesive strength to steel, aluminum foil, PET or PVC films. Also, better adhesion and film strength can be achieved while cross-linked with melamine or blocked isocyanate curing agents. This grade offers heat seal properties, flexibility, good processibility and no sticky problem during transportation. It can be dissolved in ketone, ether or esters type of solvents, such as isophorone, acetone, MEK, CYC, DBE & EA. And it is usually dissolved with aromatic solvents, such as 100# & 150#. MARNEX™ AH448 is recommended for interior can coating and screen printing & gravure inks. It complies with FDA 175.300 (only for non-alcoholic goods) and 175.105. The shelf life of this product is 24 months.

EBECRYL® 113 by allnex is a low odor, low viscosity, aliphatic monofunctional acrylate with secondary hydroxyl functionality. It exhibits good pigment wetting and allows efficient reduction of oligomer viscosity. It is used as a reactive diluent in ultraviolet light (UV) or electron beam (EB) curing formulations.

• It offers reduced shrinkage & glass transition temperature (Tg), good reactivity, increased flexibility and improved water resistance.
• It is used in screen inks and varnishes, wood sealers & topcoats, coatings for paper and plastic.
• EBECRYL® 113 is suitable for coatings and inks with adhesion to plastics such as polyethylene and plasticized PVC.

MARNEX™ AH651 by Macroocean is a high molecular weight, saturated linear polyester resin. It shows excellent adhesive strength to steel and PET or PVC films. It offers heat seal properties, excellent pigment wetting and heat resistance. Also, offers better flexibility and adhesion is available while using with low Tg types of resin, such as MARNEX™ AL171 and MARNEX™ AL072. It can be dissolved in ketone, ether or esters type of solvents, such as isophorone, acetone, MEK, CYC, DBE & EA. And it is usually dissolved with aromatic solvents, such as 100# & 150#. MARNEX™ AH651 is used in coil coatings and gravure & screen printing inks. It complies with FDA 175.300 (only for non-alcoholic goods) and 175.105. The shelf life of this product is 24 months.

EBECRYL® 3608 by allnex is a fatty acid modified epoxy acrylate oligomer diluted with 15% of oligotriacrylate (OTA 480). It is characterized by low odor, light color, low irritancy, excellent pigment wetting properties and good cure response when cured by exposure to ultraviolet light (UV) or electron beam (EB). EBECRYL® 3608 is recommended for lithographic and screen ink and coatings, overprint varnishes, coatings on cardboard, chipboard, paper, rigid plastics and paper upgrading. Cured films exhibit high surface hardness, good solvent resistance and low residual odor. The shelf life of the grade is 2 years.

Photomer® 6621 distributed by DKSH is tin-free, hexafunctional aliphatic urethane acrylate oligomer. It provides very fast cure performance, high hardness, cure speed, scratch-, abrasion-, and solvent resistance.

• It is recommended for use paper, wood and plastic coatings.
• It is suitable for overprint varnishes like offset, flexo, screen and gravure coatings.
• Photomer® 6621 has a shelf life of 6 months.
• It is available in Japan, Taiwan, South Korea and France.

EBECRYL® 230 by allnex is an undiluted high molecular weight aliphatic urethane diacrylate, characterized by its light color and low viscosity. It is most often used as a modifier to improve the flexibility of finished formulations.

• Films of EBECRYL® 230 cured via exposure to ultraviolet light (UV) or electron beam (EB) are soft and resistant to yellowing.
• It is recommended for lithographic- & screen inks as well as coatings for plastics and metals.