Engineered for offset, flexo, screen, gravure, and functional industrial printing inks. Each grade provides verified chemical purity, precise polydispersity, and batch-to-batch rheological consistency.
In modern industrial reproduction, a printing ink is no longer merely a dispersed pigment solution. It is a high-speed photopolymer network whose mechanical integrity, wetting kinetics, curing profile, and interfacial shear tolerance are predetermined at the macromolecular level.
18+ years of dedicated polymer synthesis and ink vehicle innovation
Modern DCS-controlled automated reactors in Yunfu, Guangdong
Proprietary hyperbranched and low-shrinkage macromolecular structures
Stringent rheological and viscosity repeatability under ISO 9001:2015
UV curable inks operate via ultra-rapid free-radical polymerization triggered by Type I (cleavage) or Type II (hydrogen-abstraction) photoinitiators. When exposed to UVA/UVV or monochromatic LED-UV lamps (365nm, 385nm, 395nm), the terminal acrylate carbon-carbon double bonds (CH₂=CH-COO-) achieve millisecond crosslinking. Formulating high-quality inks requires careful control over the balance between rapid conversion and vitrification arrest to eliminate micro-cracking and unreacted toxic monomers.
The binder backbone dictates the wetting and de-agglomeration of difficult organic and inorganic pigments (phthalocyanines, carbon black, diarylide yellows). By incorporating controlled hydroxyl, carboxyl, or ether segments into polyester and polyurethane acrylate chains, our prepolymers lower interfacial energy, prevent pigment flocculation, suppress pseudoplastic syneresis, and maintain ideal rheological thixotropy across high shear rates on the print press.
Thin ink films (0.8 µm to 2.5 µm in offset and flexo) suffer severely from atmospheric oxygen diffusion, which scavenges free radicals to form unreactive peroxy radicals (ROO•), causing tacky surfaces and color transfer. Our proprietary amine-modified polyether acrylates and amino acrylate synergists actively donate labile alpha-hydrogens, regenerating active carbon radicals and enabling complete tack-free surface curing even under high-speed ambient air exposure.
Based in Guangdong—the global manufacturing hub for electronics, packaging, and chemical processing—Guangdong Ever Ray Environmental Material Co., Ltd. transforms vertical upstream raw material synthesis into unassailable cost-performance and technical reliability for global ink formulators.
Our Yunfu synthesis facility leverages localized petrochemical networks for core monomers: acrylic acid (AA), isophorone diisocyanate (IPDI), toluene diisocyanate (TDI), bisphenol A diglycidyl ether (BADGE), trimethylolpropane (TMP), and pentaerythritol. Direct pipeline and bulk container access insulates global buyers from global raw material shocks while delivering consistent base pricing unattainable by Western toll-manufacturers.
Batch variations ruin high-speed printing presses by shifting ink tack and fountain balance. Ever Ray operates fully automated Distributed Control System (DCS) reactors equipped with precision temperature ramps (±0.5°C), controlled esterification water separators, and real-time Fourier-Transform Infrared (FTIR) inline titration of isocyanate groups (-NCO) down to zero residual content. Every production lot is certified with rigorous GC-MS and GPC analysis.
We do not just offer catalog items; our in-house application laboratory formulates tailored starting formulas for clients. If your press experiences misting at 18,000 sheets/hour, or if you face delamination on untreated biaxially oriented polypropylene (BOPP), our polymer chemists synthesize customized prepolymers with engineered molecular weight distributions (Mw/Mn) specifically calibrated to your shear profile.
The printing ink chemical market is undergoing a structural paradigm shift driven by stringent decarbonization targets, regulatory bans on mercury arc lamps, and strict food contact packaging safety standards.
Traditional medium-pressure mercury lamps emit broad-spectrum UV (200nm–450nm) but generate massive heat and ozone. The global migration to 385nm and 395nm LED-UV systems cuts energy use by 70% but eliminates short-wavelength UVC responsible for surface cure. Ever Ray designs high-reactivity polyester and hyperbranched acrylates optimized for long-wave absorption profiles, allowing high-speed line speeds without surface tack or photoinitiator over-saturation.
Food, beverage, and pharmaceutical packaging are strictly governed by the Swiss Ordinance (SR 817.023.21) and Nestlé Guidance Notes. Small monomeric molecules risk migrating through primary paperboard and film substrates. Our polymeric photo-synergists and high-molecular-weight aliphatic polyurethane acrylates (Mw > 2500 Da) become entirely chemically bonded into the polymer matrix upon irradiation, preventing extractable leachate.
To assist global brand owners in meeting Scope 3 carbon neutrality commitments, Ever Ray has commercialized a new line of bio-based acrylate oligomers synthesized from vegetable fatty acid polyols, cardanol, and bio-succinic acid. These polymers deliver 35% to 60% bio-based carbon content without sacrificing tensile modulus, gloss, or chemical resistance compared to traditional bisphenol-based resins.
A single ink vehicle cannot perform uniformly across all printing techniques. Viscosity, surface tension, elongation at break, and chemical resistance must be tailored to the substrate dynamics.
| Printing Application | Key Substrates | Dominant Rheological Target | Recommended Oligomer Base | Key Performance Metric |
|---|---|---|---|---|
| Sheetfed UV Offset | Coated Paperboard, Metallized PET, PVC | High tack (12-16), thixotropic yield point | Polyester Acrylate (5332F, 5403-2F) | Anti-Emulsification |
| Narrow-Web Flexo | BOPP, PE, Shrink Sleeves (PETG), Foil | Low viscosity (500–1500 mPa.s), instant wet-out | Low-viscosity PUA + Amino Acrylate | Tape Adhesion 100% |
| UV Screen Printing | Glass, Anodized Al, Polycarbonate (PC) | Non-drip, pseudoplastic, heavy film build (15µm+) | Modified Epoxy Acrylate (6203F, 6231) | MEK Rubs >200 |
| Digital UV Inkjet | Rigid Acrylic, Corrugated Flute, Vinyl | Ultra-low viscosity (8-15 mPa.s @ 45°C), zero satellites | Hyperbranched Oligomer + Mono-Acrylates | Sub-30 mN/m Surface Tension |
| Overprint Varnishes (OPV) | Luxury Packaging, Labels, Folding Cartons | High leveling, ultra-fast curing, optical clarity | Multifunctional PUA (7600) + Pure Acrylate | Gloss >96 GU @ 60° |
UV offset ink formulators require strict hydrophobic-hydrophilic balance. Excess water uptake results in ink emulsification, scumming, and loss of dot sharpness; inadequate water acceptance causes roller stripping. Ever Ray’s chlorinated or modified polyester acrylates (such as 5332F and 5403-2F) create a stable viscoelastic plateau, enabling crisp 1% to 99% dot reproduction at press speeds exceeding 16,000 impressions per hour.
Printing on non-porous metals (tinplate, aluminum cans, brass dials) and engineering plastics requires extreme resistance to thermal shock, drawing, and chemical sterilization. Modified epoxy acrylates like our 6203F grade yield flexible aliphatic linkages that maintain cross-hatch adhesion (0% detachment) even after boiling water immersion testing and high-temperature pasteurization.
Conductive traces, decorative bezels, and tactile keys in mobile devices require inks that withstand severe flexing without crazing or conductivity drop. By using our high-elongation aliphatic polyurethane acrylate resins, ink producers formulate dielectric and decorative inks with tensile elongations exceeding 120% and zero micro-fissuring over 1,000,000 switch actuation cycles.
Real-world commercial pressrooms face ongoing production issues that cannot be solved by simply adding photoinitiators or reactive diluents. Our application engineering delivers molecular-level solutions.
The Root Cause: Under high-speed roller rotation (above 400 m/min), ink filaments split rapidly. If the molecular relaxation time is mismatched, liquid filaments snap violently, forming airborne aerosol droplets that contaminate print plates and mechanical sensors.
The Solution: Ever Ray incorporates high-molecular-weight, branched polyester oligomers that introduce elasticity into the ink matrix, shortening filament elongation lengths and completely arresting ink misting.
The Root Cause: When 4 to 7 color stations cure in sequence, each cured color layer leaves a smooth, densely crosslinked surface. If prior stations cure too hard or exhibit surface wax/silicone migration, subsequent ink layers cannot mechanically anchor, leading to flaking.
The Solution: Formulating with our 7600 series multifunctional polyurethane acrylates maintains residual reactive unreacted acrylates at the microscopic interface, enabling chemical covalent co-curing across color stations.
The Root Cause: In thin plastic films (12–25 µm PET, BOPP, PVC), the conversion of van der Waals distances to covalent bond lengths during polymerization generates volume shrinkage of 8% to 15%, inducing extreme film warping, wrinkling, and edge curling.
The Solution: Grade 6203F and our pure acrylate prepolymers employ bulky cycloaliphatic and ring-opening structural motifs that drop net volumetric shrinkage below 1.8%, preserving complete dimensional planarity.
Sourcing directors and quality compliance teams require deep documentation, verifiable analytical tolerances, and regulatory certifiability. Ever Ray issues complete Certificates of Analysis (COA) for every batch.
Measured under ASTM D1639. Acid values are tightly managed below 2.0 mg KOH/g to avoid fountain solution reactions, premature gelling, and metal plate corrosion in offset printing.
Evaluated using ASTM D1544. Clear varnishes and non-yellowing topcoats demand Gardner values < 1.0 to preserve absolute optical transmission and color accuracy over white backgrounds.
Brookfield CAP 2000+ testing at 25°C and 50°C across standard shear rates (1000 s⁻¹) ensures predictable pumpability, flow-out, and compatibility with automated ink mixing equipment.
Gas Chromatography Mass Spectrometry confirms residual free acrylic acid or reactive volatile species < 200 ppm, preventing workplace odor, skin irritation, and migration violations.
Full support for EU REACH (Annex XVII & SVHC), US TSCA, RoHS 3.0, EN 71-3, and zero VOC verification.
Direct technical answers from our senior ink chemists addressing formulation troubleshooting, lamp compatibility, substrate pretreatment, and global shipping logistics.
While standard Bisphenol A epoxy acrylates provide fast cure and hardness, their backbone contains numerous rigid aromatic rings and hydrogen-bonding hydroxyl groups that cause excessively high viscosity, high tack, and brittleness. More critically, epoxy acrylates interact poorly with dampening solutions, often emulsifying unpredictably. Polyester acrylates (such as Ever Ray 5332F and 5403-2F) feature flexible ester linkages and optimized polarity, delivering superior pigment wetting, lower base viscosity, and an exceptionally broad water-ink balance window that prevents roller emulsification at speeds exceeding 15,000 sheets/hour.
In thin films (1.0 to 3.0 µm), atmospheric oxygen easily penetrates the wet ink, forming unreactive peroxy radicals that terminate polymerization and leave a greasy surface. Amino acrylates possess reactive amine nitrogen atoms with labile alpha-hydrogens. These hydrogens are readily abstracted by peroxy radicals to form hydroperoxides and regenerate active alkylamino radicals that restart polymerization. Unlike migratory liquid monomeric amines, our copolymerizable amino acrylates become permanently bound into the crosslinked matrix, eliminating amine blushing, odor, and migration hazards.
Untreated polypropylene (PP) and polyethylene (PE) have very low surface energy (< 30 dynes/cm) and lack polar anchor points. While corona or flame treatment is recommended (raising dyne levels to > 38 dynes/cm), formulators must also employ specialty functional acrylates (such as pure acrylate oligomers with chlorinated or long-chain hydrocarbon segments, or phosphate-ester functional monomers). These groups create donor-acceptor interactions with the polymer substrate while reducing interfacial tension. Combining this with a low-shrinkage prepolymer (like 6203F) minimizes interfacial shear stress, preventing the film from lifting during crosshatch tape tests.
UV oligomers are heat-sensitive and can spontaneously polymerize if exposed to elevated temperatures during shipping through tropical zones. Ever Ray uses balanced multi-component inhibitor packages combining sterically hindered phenols (e.g., BHT) with stable nitroxide free radicals (e.g., TEMPO derivatives) and dissolved oxygen maintenance. Every export batch undergoes an accelerated stability challenge at 60°C for 7 days (simulating 12 months at room temperature) to ensure viscosity drift remains under 3% prior to bill of lading issuance.
Yes. Piezoelectric inkjet printheads (such as Kyocera, Ricoh Gen5/6, Konica Minolta) require operational ink viscosities of 8 to 14 mPa.s at jetting temperature (40°C–45°C). Traditional oligomers are too viscous. Ever Ray synthesizes hyperbranched polyester and polyurethane acrylates whose dendritic, globular structures prevent polymer chain entanglement, achieving viscosities 70% lower than linear counterparts at identical molecular weights. When combined with our specialty monofunctional monomers (e.g., IBOA, ACMO, THFA), we deliver jetting-stable ink vehicles with exceptional jetting stability and nozzle open-time.
Standard export packaging options include 200 kg tight-head steel drums (epoxy phenolic lined) with nitrogen purge, 1,000 kg UN-certified composite intermediate bulk containers (IBC), and 20,000–24,000 kg ISO-tank containers for high-volume multinational accounts. Standard commercial inventory ships within 7 to 10 working days from the ports of Shenzhen, Guangzhou, or Hong Kong, backed by full maritime documentation including compliant SDS (GHS compliant), COA, and Technical Data Sheets.
Engineered for extreme wear, rapid boiling-water resistance, ultra-fast line speed, low heat release, and high elasticity across technical and packaging applications.
Accelerate your next-generation printing ink development. Request complimentary 1 kg lab-qualification samples, complete Technical Data Sheets (TDS), and starting formulation support tailored to your press speeds and target substrates.
